ROBOT WITH DAISY-CHAINABLE ROBOT ARM

A robot includes a motor drive power source for converting a voltage supplied from a power source to a motor drive unit-grade voltage and outputting it, a motor drive unit for converting a motor drive unit-grade voltage output from the motor drive power source to a motor drive voltage and outputting it, a motor driven to be rotated by a motor drive voltage output by the motor drive unit, a robot arm on which the motor drive unit and the motor are arranged, and a robot controller which is provided independently of the robot arm and on which the motor drive power source is arranged. 1. A robot comprising:a motor drive power source for converting a voltage supplied from a power source to a motor drive unit-grade voltage, the motor drive power source outputting the motor drive unit-grade voltage;a motor drive unit for converting the motor drive unit-grade voltage output from the motor drive power source to a motor drive voltage, the motor drive unit outputting the motor drive voltage;a motor driven to be rotated by the motor drive voltage output by the motor drive unit;a robot arm provided with the motor drive unit and the motor; anda robot controller provided independently of the robot arm, the robot controller being provided with the motor drive power source.2. The robot according to claim 1 , whereinthe robot arm includes a connection unit for daisy-chaining an input side of the motor drive unit arranged on the robot arm, the input side being for the motor drive unit-grade voltage, to an input side of the motor drive unit arranged on a robot arm different from the robot arm, the input side being for the motor drive unit-grade voltage, andthe motor drive unit-grade voltage output from the motor drive power source is input to the motor drive units arranged on the respective robot arms via the connection unit.3. The robot according to claim 1 , further comprising:a casing for housing therein the motor drive unit and the motor driven to be rotated by the motor drive unit ...

MOTOR DRIVE APPARATUS EQUIPPED WITH LIFE PREDICTION FUNCTION FOR MOTOR BRAKE

A motor drive apparatus includes: a motor current detection unit; a brake release determination unit that determines that the brake is not released when the motor current detected when the motor is operated under a predetermined load by application of a voltage to a brake coil is larger than a current for when the brake is normally released; a brake coil voltage change unit that changes a voltage applied to the brake coil when it is determined that the brake is not released to a larger value; a change history storage unit that stores the voltage after being changed and change date and time; and a life prediction unit that calculates a predicted life of the brake apparatus based on the voltage after being changed and the change date and time and the previously stored failure-time brake coil voltage. 1. A motor drive apparatus including a brake apparatus that applies brake to a motor by pressing an armature with an elastic force of a spring against a friction plate coupled to a motor shaft and releases the brake of the motor by pulling the armature away from the friction plate with an electromagnetic force generated by application of a brake coil voltage to a brake coil , the motor drive apparatus , comprising:a motor current detection unit that detects a motor current which flows through the motor;a brake release determination unit that determines that the brake is not released when the motor current detected by the motor current detection unit when the motor is operated under a predetermined load in a state in which the brake coil voltage is applied to the brake coil when a brake release command is received is larger than a current for when the brake is normally released which is previously stored, and determines that the brake is released when the motor current is smaller than or equal to the current for when the brake is normally released;a brake coil voltage change unit that when the brake release determination unit determines that the brake is not released, ...

Conduction path structure of robot

A conduction path structure of a robot in which a conduction path has a simplified structure is provided. A conduction path structure of a robot includes: a structural mechanism which functions as a support and has a conductor portion; an actuator that operates the structural mechanism; and a conduction path through which driving power and/or a control signal is supplied to the actuator, wherein the conduction path also serves as the conductor portion of the structural mechanism.

PRINTED CIRCUIT BOARD HAVING FUNCTION OF DETECTING DETERIORATION AND MOTOR DRIVE HAVING THE SAME

A printed circuit board according to an embodiment of the present invention is formed of an insulating material and configured to mount components and wiring thereon. The printed circuit board includes a liquid pool for storing a liquid; a pair of deterioration detection traces one of which is connected to a power supply at one end and disposed in the liquid pool at the other end, and the other of which is connected to a ground at one end through a resistor and disposed in the liquid pool at the other end; a voltage detection circuit for detecting a voltage between the one ends of the one and the other deterioration detection traces; and a deterioration determination circuit for determining, based on the detected voltage, whether or not insulation deteriorates between the other ends of the one and the other deterioration detection traces. 1. A printed circuit board formed of an insulating material and configured to mount a component and wiring thereon , the printed circuit board comprising:a liquid pool for storing a liquid including a water-soluble or water-insoluble cutting fluid, or a liquid adhesion portion to which the liquid adheres;a pair of deterioration detection traces one of which is connected to a power supply at one end and disposed in the liquid pool or the liquid adhesion portion at the other end, and the other of which is connected to a ground at one end, in which a resistor is connected to one end of the power supply or one end of the ground, and disposed in the liquid pool or the liquid adhesion portion at the other end;a voltage detection circuit for detecting a voltage between the one end of the one of the deterioration detection traces and the one end of the other of the deterioration detection traces; anda deterioration determination circuit for determining, based on the detected voltage, whether or not insulation deteriorates between the other end of the one of the deterioration detection traces and the other end of the other of the ...

Machine learning device for learning assembly operation and component assembly system

A machine learning device includes a state observation unit for observing state variables that include at least one of the state of an assembly constituted of first and second components, an assembly time and information on a force, the result of a continuity test on the assembly, and at least one of position and posture command values for at least one of the first and second components and direction, speed and force command values for an assembly operation; and a learning unit for learning, in a related manner, at least one of the state of the assembly, the assembly time and the information on the force, the result of the continuity test on the assembly, and at least one of the position and posture command values for at least one of the first and second components and the direction, speed and force command values for the assembly operation.

Motor drive apparatus having function of detecting failure of electric shunt

A motor drive apparatus according to the present invention comprises: an electric shunt which shunts a current flowing through a power line connected to a motor; a first current detection unit and a second detection unit, each disposed on either side of a node shunted by the electric shunt, for detecting the current flowing through the power line; a shunt commanding unit which gives a shunt command to the electric shunt to effect shunting of the current; and a determining unit which determines the presence or absence of a fault in the electric shunt, based on the shunt command and on current values detected by the first current detection unit and the second detection unit.

Motor drive control system enabling connection of direct current/alternating current conversion device

A motor drive control system connected to an alternating current/direct current conversion circuit which converts alternating-current voltage or alternating current to direct-current voltage or direct current are provided. A control circuit controls supply or stop of the supply of the direct-current voltage or direct current from the alternating current/direct current conversion circuit to the first number of first direct current/alternating current conversion circuits and the second number of second direct current/alternating current conversion circuits while maintaining the total of the outputs of the first number of motors and the outputs of the second number of motors at a certain power not more than power which can be supplied from the alternating current/direct current conversion circuit.

CORROSION DETECTION CIRCUIT FOR CIRCUIT BOARD AND MOTOR DRIVE HAVING THE SAME

A corrosion detection circuit according to an embodiment of the present invention includes an insulating board; a test chip having a corrodible metal, mounted on the surface of the insulating board; a plurality of resistors each having a higher resistance value than the test chip after a change due to an environment including contact with the test chip and the adhesion of dust to the test chip; and a voltage detection circuit for detecting the output voltage of a divided voltage output point, when a voltage is applied to the test chip and a voltage dividing circuit using the plurality of resistors. The voltage detection circuit detects a break in the test chip by corrosion based on a variation in the output voltage. 1. A corrosion detection circuit comprising:an insulating board;a test chip having a corrodible metal, mounted on the surface of the insulating board;a plurality of resistors each having a higher resistance value than the test chip after a change due to an environmental factor including contact with the test chip and the adhesion of dust to the test chip; anda voltage detection circuit for detecting the output voltage of a divided voltage output point, when a voltage is applied to the test chip and a voltage dividing circuit using the plurality of resistors,wherein the voltage detection circuit detects a break in the test chip by corrosion based on a variation in the output voltage.2. The corrosion detection circuit according to claim 1 , wherein the test chips that each have at least one metal different from each other are arranged on a high voltage side and a low voltage side relative to the divided voltage output point of the voltage dividing circuit.3. The corrosion detection circuit according to claim 1 , wherein a plurality of pairs of the resistor and the test chip having the different metal are arranged in parallel on at least one of a high voltage side and a low voltage side relative to the divided voltage output point of the voltage dividing ...

Cooling device having function to detect clogging of radiation fins

A cooling device includes an electrode unit which is arranged in a space between adjacent radiation fins and which is electrically insulated from the radiation fins, and a power supply source which applies a voltage between a heat radiation structure and the electrode unit. The cooling device is further provided with an insulation resistance detection unit which calculates an insulation resistance between the heat radiation structure and the electrode unit, and a comparison unit which compares the insulation resistance calculated by the insulation resistance detection unit with a predetermined threshold, wherein, as a result of the comparison of the calculated insulation resistance and the predetermined threshold by the comparison unit, when the calculated insulation resistance is lower than the predetermined threshold, the cooling device is adapted to judge that the radiation fins have clogged.

Motor driving controller

A motor driving controller that drivingly controls motors for individual axes of an object of control comprises an AC/DC converter circuit for converting AC power into DC power and motor driving DC/AC converter circuits for converting DC power into AC power of optional frequency, for each motor. The controller further comprises an interface through which DC power from the AC/DC converter circuit is delivered to the outside. If motors for peripheral axes are added, motor driving DC/AC conversion devices are added and connected to the interface, whereby DC power is supplied.

MOTOR DRIVE APPARATUS HAVING FUNCTION FOR DETERMINING ABNORMALITY OF MAIN POWER SUPPLY VOLTAGE

A motor drive apparatus in which a main power supply used for motor drive is supplied via a magnetic contactor includes: a monitoring unit that monitors a main power supply voltage at an AC power supply input side of the magnetic contactor in a state in which contacts of the magnetic contactor are opened; a determination unit that determines whether the main power supply voltage monitored by the monitoring unit is normal; and a magnetic contactor control unit that outputs a command that controls opening and closing of contacts of the magnetic contactor, wherein when it is determined by the determination unit that the main power supply voltage is abnormal, the magnetic contactor control unit maintains an output of an open command such that the contacts of the magnetic contactor are opened. 1. A motor drive apparatus in which a main power supply used for motor drive is supplied via a magnetic contactor , the motor drive apparatus comprising:a monitoring unit that monitors a main power supply voltage at an AC power supply input side of the magnetic contactor in a state in which contacts of the magnetic contactor are opened;a determination unit that determines whether the main power supply voltage monitored by the monitoring unit is normal; anda magnetic contactor control unit that outputs a command that controls opening and closing of the contacts of the magnetic contactor,wherein when it is determined by the determination unit that the main power supply voltage is abnormal, the magnetic contactor control unit maintains an output of an open command that controls such that the contacts of the magnetic contactor are opened.2. The motor drive apparatus according to claim 1 , wherein when the main power supply voltage is higher than a first reference voltage set beforehand claim 1 , the determination unit determines that the main power supply voltage is abnormal.3. The motor drive apparatus according to claim 2 , wherein when the main power supply voltage is lower than a ...

Motor driving controller

A motor driving controller that drivingly controls motors for individual axes of an object of control comprises an AC/DC converter circuit for converting AC power into DC power and motor driving DC/AC converter circuits for converting DC power into AC power of optional frequency, for each motor. The controller further comprises an interface through which DC power from the AC/DC converter circuit is delivered to the outside. If motors for peripheral axes are added, motor driving DC/AC conversion devices are added and connected to the interface, whereby DC power is supplied.

Current detection circuit not affected by noise

A current detection circuit includes: a resistor in a current path; first and second signal transmission units that transmit signals of first and second terminal sides of the resistor; a first difference operation unit that executes a difference operation on the signals transmitted by the first and second signal transmission units; a noise-capturing transmission unit starting point; third and fourth signal transmission units connected with the noise-capturing transmission unit starting point; a second difference operation unit that executes a difference operation on the signals transmitted by the third and fourth signal transmission units; and a summing operation unit that executes a summing operation on the first and second difference signals, wherein the first signal transmission unit and the fourth signal transmission unit are disposed close to each other and the second signal transmission unit and the third signal transmission unit are disposed close to each other.

Motor drive having function of detecting circuit abnormality owing to entering foreign matter before significant abnormality occurs

A motor drive includes a DC power supply unit for rectifying electric power supplied from an AC power supply using a rectifier and smoothing the electric power using a capacitor; and a plurality of independent voltage measurement circuits for measuring the voltage of the DC power supply unit. The motor drive, which converts a DC voltage into an AC voltage to drive a motor, includes a voltage collection unit for collecting voltage information obtained from the voltage measurement circuits; a normal operation voltage information storage unit for storing a normal operation voltage; and an abnormality determination unit for identifying an intersection voltage of output signals based on voltage values collected by the voltage collection unit, comparing the intersection voltage with the normal operation voltage, and detecting a broken portion owing to entering foreign matter based on the difference between the intersection voltage and the normal operation voltage.

MOTOR DRIVING DEVICE

A motor driving device is equipped with a printed board, a plurality of secondary voltage elements mounted on the printed board and which are used only with a secondary voltage, a plurality of primary voltage elements disposed on a surface on a side opposite to a surface on which the plurality of secondary voltage elements are mounted on the printed board, and which are used only with a primary voltage that is higher than the secondary voltage, and first conductive materials, which extend from an upper portion of the printed board to control terminals (command signal input portion) of the primary voltage elements, for the purpose of transmitting command signals from the secondary voltage elements to the primary voltage elements.

MOTOR DRIVE HAVING FUNCTION OF DETECTING CIRCUIT ABNORMALITY OWING TO ENTERING FOREIGN MATTER BEFORE SIGNIFICANT ABNORMALITY OCCURS

A motor drive includes a DC power supply unit for rectifying electric power supplied from an AC power supply using a rectifier and smoothing the electric power using a capacitor; and a plurality of independent voltage measurement circuits for measuring the voltage of the DC power supply unit. The motor drive, which converts a DC voltage into an AC voltage to drive a motor, includes a voltage collection unit for collecting voltage information obtained from the voltage measurement circuits; a normal operation voltage information storage unit for storing a normal operation voltage; and an abnormality determination unit for identifying an intersection voltage of output signals based on voltage values collected by the voltage collection unit, comparing the intersection voltage with the normal operation voltage, and detecting a broken portion owing to entering foreign matter based on the difference between the intersection voltage and the normal operation voltage. 1. A motor drive includinga direct current (DC) power supply unit for rectifying electric power supplied from an alternating current (AC) power supply using a rectifier circuit and smoothing the electric power using a capacitor; anda plurality of independent voltage measurement circuits for measuring the voltage of the DC power supply unit;the motor drive converting a DC voltage from the DC power supply unit into an AC voltage to drive a motor, the motor drive comprising:a voltage collection unit for collecting voltage information obtained from the plurality of voltage measurement circuits;a normal operation voltage information storage unit for storing a normal operation voltage; andan abnormality determination unit for identifying an intersection voltage of output signals based on voltage values collected by the voltage collection unit, comparing the intersection voltage with the normal operation voltage, and detecting a broken portion owing to entering foreign matter based on the difference between the ...

Housing of electronic components detecting deposited cutting fluid and motor drive system including housing

A motor drive system enabling detection of cutting fluid deposited at a housing of electronic components. A housing holding electronic components of a motor drive system has top faces slanted with respect to the horizontal plane so as to guide the deposited cutting fluid. The housing further includes storage parts collecting the cutting fluid guided along the top faces. The storage parts may be graduated so as to enable the collected amount of the cutting fluid to be measured. The storage parts may be configured to be detachable from the housing.

MOTOR DRIVE DEVICE ASSEMBLY INCLUDING PLURALITY OF MOTOR DRIVE DEVICES, AND MOTOR DRIVE DEVICE INCLUDING HEATSINK

A motor drive device assembly capable of suppressing differences in temperatures of motor drive devices depending on operational conditions. The motor drive device assembly includes a first motor drive device including a first heatsink, a second motor drive device located adjacent to the first motor drive device and including a second heatsink formed separately from the first heatsink, and a connection part connecting the first heatsink and the second heatsink to each other, to allow thermal conduction between the first heatsink and the second heatsink.

Motor drive device suppressing voltage fluctuation in DC link capacitor

To provide a motor drive device that suppresses voltage fluctuation of a DC link capacitor, as well as enabling for low cost and size reduction. A motor control unit sets a threshold of voltage at which to start regeneration to a first threshold in a case of an increased amount per unit time of a DC voltage value detected by a voltage detection part being less than a certain amount, and sets the threshold of voltage at which to start regeneration to a second threshold that is larger than the first threshold, in a case of the increased amount per unit time of the DC voltage value detected by the voltage detection part being at least a certain amount.

Printed circuit board structure for motor driving device

A printed circuit board structure for a motor driving device in which the number of kinds of printed circuit boards for constituting inverter devices having different allowable input voltages are reduced. This printed circuit board structure comprises a plurality of conductive patterns and a selective connector. Each of the conductive patterns includes at least one pair of electrodes arranged in confronting relation to form a capacitor, and terminals electrically conducted with the electrodes. The selective connector selectively connects the terminals of the conductive patterns so that a capacitor circuit having predetermined capacitance is formed.

Printed circuit board having function of detecting deterioration and motor drive having the same

A printed circuit board according to an embodiment of the present invention is formed of an insulating material and configured to mount components and wiring thereon. The printed circuit board includes a liquid pool for storing a liquid; a pair of deterioration detection traces one of which is connected to a power supply at one end and disposed in the liquid pool at the other end, and the other of which is connected to a ground at one end through a resistor and disposed in the liquid pool at the other end; a voltage detection circuit for detecting a voltage between the one ends of the one and the other deterioration detection traces; and a deterioration determination circuit for determining, based on the detected voltage, whether or not insulation deteriorates between the other ends of the one and the other deterioration detection traces.

Motor driving apparatus including overcurrent detection unit

A motor driving apparatus includes a motor driving unit for converting DC voltage on a DC link into AC voltage when a switching device is turned on/off and outputting the AC voltage to an AC motor side, a gate driving circuit for turning on/off the switching device, a gate driving command generation unit for outputting either one of an ON command and an OFF command to the gate driving circuit, and an overcurrent detection unit for detecting an overcurrent with respect to a DC link current or an alternating current on the AC motor side, wherein, when the overcurrent detection unit detects the overcurrent, the gate driving command generation unit alternately outputs the ON command and the OFF command while gradually increasing a ratio of the OFF command to the ON command and ultimately outputs only the OFF command.

COOLING DEVICE HAVING FUNCTION TO DETECT CLOGGING OF RADIATION FINS

A cooling device includes an electrode unit which is arranged in a space between adjacent radiation fins and which is electrically insulated from the radiation fins, and a power supply source which applies a voltage between a heat radiation structure and the electrode unit. The cooling device is further provided with an insulation resistance detection unit which calculates an insulation resistance between the heat radiation structure and the electrode unit, and a comparison unit which compares the insulation resistance calculated by the insulation resistance detection unit with a predetermined threshold, wherein, as a result of the comparison of the calculated insulation resistance and the predetermined threshold by the comparison unit, when the calculated insulation resistance is lower than the predetermined threshold, the cooling device is adapted to judge that the radiation fins have clogged. 1. A cooling device comprising:a heat radiation structure having a plurality of radiation fin portions to be arranged on a heat generating body;a cooling fan which generates an air flow which flows in a space between the radiation fin portions;an electrode unit which is provided in the space and which is electrically insulated from the radiation fin portions;a power supply source which applies a voltage between the heat radiation structure and the electrode unit;a voltage detection unit which detects a voltage applied between the heat radiation structure and the electrode unit;a current detection unit which detects a current which flows in a circuit formed by electrically and sequentially connecting at least the power supply source, the electrode unit, and the heat radiation structure;an insulation resistance detection unit which calculates an insulation resistance between the heat radiation structure and the electrode unit based on the detection results of the voltage detection unit and the current detection unit; anda comparison unit which compares the insulation ...

MOTOR DRIVING APPARATUS INCLUDING OVERCURRENT DETECTION UNIT

A motor driving apparatus includes a motor driving unit for converting DC voltage on a DC link into AC voltage when a switching device is turned on/off and outputting the AC voltage to an AC motor side, a gate driving circuit for turning on/off the switching device, a gate driving command generation unit for outputting either one of an ON command and an OFF command to the gate driving circuit, and an overcurrent detection unit for detecting an overcurrent with respect to a DC link current or an alternating current on the AC motor side, wherein, when the overcurrent detection unit detects the overcurrent, the gate driving command generation unit alternately outputs the ON command and the OFF command while gradually increasing a ratio of the OFF command to the ON command and ultimately outputs only the OFF command. 1. A motor driving apparatus for converting a DC voltage into AC voltage by a switching operation of a switching device and supplying alternating current to an AC motor , the motor driving apparatus comprising:a motor driving unit configured to convert a DC voltage on a DC link side into an AC voltage when an internal switching device is turned on/off, and output the AC voltage to an AC motor side;a gate driving circuit configured to turn on/off the switching device of the motor driving unit in response to a received gate driving command;a gate driving command generation unit configured to output either one of an ON command and an OFF command as the gate driving command to the gate driving circuit; andan overcurrent detection unit configured to detect generation of an overcurrent with respect to a current flowing through a DC link of the motor driving unit or an alternating current on the AC motor side,wherein, when the overcurrent detection unit detects the generation of the overcurrent, the gate driving command generation unit alternately outputs the ON command and the OFF command while gradually increasing a ratio of the OFF command to the ON command and ...

Motor driving device

A motor driving device is equipped with a printed board, a plurality of secondary voltage elements mounted on the printed board and which are used only with a secondary voltage, a plurality of primary voltage elements disposed on a surface on a side opposite to a surface on which the plurality of secondary voltage elements are mounted on the printed board, and which are used only with a primary voltage that is higher than the secondary voltage, and first conductive materials, which extend from an upper portion of the printed board to control terminals (command signal input portion) of the primary voltage elements, for the purpose of transmitting command signals from the secondary voltage elements to the primary voltage elements.

Motor control device that decreases power consumed by control power source when power fails

A PWM signal generation unit generates a PWM signal to drive a motor, based on a current value of the motor sampled by a current value sampling unit, a position or speed of the motor sampled by a motor sampling unit, and a position or speed of a driven object sampled by a driven object sampling unit. An operation stop unit stops the operation of any one of the motor sampling unit and the driven object sampling unit depending on the power stored in the DC link part and power to which the control power source can supply when the alternating-current power source fails.

Attachment for preventing liquid from adhering to electronic component

An attachment capable of preventing liquid from adhering to a specific electronic component within an electronic device. An electronic substrate has an attachment which can be attached to and detached from the electronic substrate. The attachment has an attachment part detachably attached to an edge of the electronic substrate; and a shield part connected to or integrally formed with the attachment part. The attachment part is a clip-like member having a certain degree of elasticity, and is configured to grip an edge of the electronic substrate so that the attachment is held at a predetermined place. The shield part has an inclined surface, and is configured to shield the electronic component so that liquid, such as a splash or droplet moving toward the electronic component, does not adhere to the component when the attachment is held at the predetermined place.

Motor drive device capable of notifying adhesion of cutting fluid

A motor drive device is capable of allowing a user to surely recognize that effect when a cutting fluid adheres to a casing. The motor drive device includes an electronic component and a casing that houses the electronic component. A part of the casing changes color when coming in contact with a cutting fluid and the casing may change to different colors based on the concentration of the cutting fluid.

Apparatus with motor drive device, to which motor drive device can be easily attached

An apparatus with a motor drive device is provided with a support plate including an opening part for supporting the motor drive device. The support plate includes a first edge part around the opening part and a second edge part on the opposite side of the first edge part. The motor drive device includes a first recessed part formed on one end part in a predetermined direction, and a second recessed part formed on the other end part on the opposite side of the one end part. The first edge part is inserted into the first recessed part, and the second edge part is inserted to the second recessed part.

Servo amplifier unit

A semiconductor module is mounted on a printed circuit board so that a heat radiating surface of the module and surfaces of the printed circuit boards are parallel to inner wall surfaces of a unit case. The total thickness of the semiconductor module constituting an inverter essential to a servo amplifier, and the printed circuit boards on which the semiconductor module is mounted is made substantially equal to a distance between the inner walls of the unit case so that the width of the servo amplifier can be minimized. The other components having sizes smaller than the width of the unit case are selected, and an electrolytic capacitor and the like are divided into a plurality of parts so that the divided parts are separately accommodated. Further, air passages are defined by guide plates closing gaps between the components, so that air is impinge concentratedly on components which need to be cooled during forced air cooling by fans, whereby the cooling efficiency is enhanced, permitting ...

Motor drive apparatus equipped with life prediction function for motor brake

A motor drive apparatus includes: a motor current detection unit; a brake release determination unit that determines that the brake is not released when the motor current detected when the motor is operated under a predetermined load by application of a voltage to a brake coil is larger than a current for when the brake is normally released; a brake coil voltage change unit that changes a voltage applied to the brake coil when it is determined that the brake is not released to a larger value; a change history storage unit that stores the voltage after being changed and change date and time; and a life prediction unit that calculates a predicted life of the brake apparatus based on the voltage after being changed and the change date and time and the previously stored failure-time brake coil voltage.

APPARATUS WITH MOTOR DRIVE DEVICE, TO WHICH MOTOR DRIVE DEVICE CAN BE EASILY ATTACHED

An apparatus with a motor drive device is provided with a support plate including an opening part for supporting the motor drive device. The support plate includes a first edge part around the opening part and a second edge part on the opposite side of the first edge part. The motor drive device includes a first recessed part formed on one end part in a predetermined direction, and a second recessed part formed on the other end part on the opposite side of the one end part. The first edge part is inserted into the first recessed part, and the second edge part is inserted to the second recessed part.

Motor control device that decreases power consumed by control power source when power fails

A motor control device has a current value sampling unit configured to sample a current value of a motor, a PWM signal generation unit configured to generate a PWM signal to drive the motor, based on the sampled current value of the motor, and a power supply stop unit configured to stop supply of power from a control power supply to a peripheral depending on power stored in a DC link part and power to which the control power source can supply when an alternating-current power source fails.

MOTOR DRIVE CONTROL SYSTEM ENABLING CONNECTION OF DIRECT CURRENT/ALTERNATING CURRENT CONVERSION DEVICE

A motor drive control system connected to an alternating current/direct current conversion circuit which converts alternating-current voltage or alternating current to direct-current voltage or direct current are provided. A control circuit controls supply or stop of the supply of the direct-current voltage or direct current from the alternating current/direct current conversion circuit to the first number of first direct current/alternating current conversion circuits and the second number of second direct current/alternating current conversion circuits while maintaining the total of the outputs of the first number of motors and the outputs of the second number of motors at a certain power not more than power which can be supplied from the alternating current/direct current conversion circuit. 1. A motor drive control system connected to an alternating current/direct current conversion circuit which converts alternating-current voltage or alternating current to direct-current voltage or direct current , comprising:a first number of first direct current/alternating current conversion circuits to which direct-current voltage or direct current is supplied from said alternating current/direct current conversion circuit, which convert the supplied direct-current voltage or the supplied direct current to alternating-current voltage or alternating current, and which supply the converted alternating-current voltage or the supplied alternating current to a first number of motors;a connection unit which enables connection of a second number of second direct current/alternating current conversion circuits which convert direct-current voltage or direct current to alternating-current voltage or alternating current and which supply the converted alternating-current voltage or the converted alternating current to a second number of motors so that said alternating current/direct current conversion circuit enables supply of direct-current voltage or direct current to at least one ...

MOTOR-DRIVE UNIT HAVING HEAT RADIATOR

A compact motor-drive unit wherein each component can be stably fixed to the unit. A motor-drive unit has a plurality of substrates each having a circuit for driving a motor; semiconductor devices mounted on the respective substrates; at least one smoothing capacitor mounted on at least one of the substrates; and a heat radiator having a heat-transferring surface adjacent to the semiconductors. The smoothing capacitor is positioned within a swept area formed by moving the first substrate arranged generally parallel to a base surface, in a counter-front direction, so that the smoothing capacitor is separated from the first substrate. 1. A motor-drive unit comprising:a first substrate and a second substrate wherein a circuit for driving a motor is divided and divided sections of the circuit are formed on the first and second substrates;a connecting part which connects the first and second substrates so that the first and second substrates intersect with each other;a semiconductor device mounted on each of the first and second substrates;a heat radiator having a first heat-transferring surface adjacent to the semiconductor device mounted on the first substrate; anda capacitor positioned within a swept area formed by moving the first substrate in a direction perpendicular to the first heat-transferring surface, the capacitor being separated from the first substrate.2. The motor-drive unit as set forth in claim 1 , wherein the capacitor is a screw-fastening-type capacitor which is fastened to a first conductive arm member extending from the first substrate by means of a screw.3. The motor-drive unit as set forth in claim 1 , wherein the capacitor is mounted on a capacitor substrate attached to a second conductive arm member extending from the first substrate.4. The motor-drive unit as set forth in claim 1 , wherein the capacitor is mounted on an extended portion formed by extending the second substrate in a direction perpendicular to the first substrate.5. The motor- ...

MOTOR DRIVE DEVICE CAPABLE OF NOTIFYING ADHESION OF CUTTING FLUID

A motor drive device is capable of allowing a user to surely recognize that effect when a cutting fluid adheres to a casing. The motor drive device includes an electronic component and a casing that houses the electronic component. A part of the casing changes color when coming in contact with a cutting fluid and the casing may change to different colors based on the concentration of the cutting fluid.

MOTOR DRIVE APPARATUS HAVING FUNCTION OF SUPPRESSING TEMPORAL VARIATION OF REGENERATIVE CURRENT

A motor drive apparatus comprises: a converter which converts DC power into AC power and returns the AC power to an AC power supply; a 120-degree conduction regenerative power control unit which controls the converter using a 120-degree conduction method so that the power recovered through the converter is returned to the AC power supply; a PWM regenerative power control unit which controls the converter using a PWM control method so that the power is returned to the AC power supply; an input voltage detection unit which detects a supply voltage supplied to the converter; a DC link voltage detection unit which detects a DC link voltage; and a regenerative method switching unit which, during power regeneration, performs switching between the 120-degree conduction method and the PWM control method in accordance with a given criterion, based on a voltage value detected by the DC link voltage detection unit. 1. A motor drive apparatus comprising:a converter configured to convert DC power into AC power and returns the AC power to an AC power supply;a 120-degree conduction regenerative power control unit configured to control the converter using a 120-degree conduction method so that the power recovered through the converter is returned to the AC power supply;a PWM regenerative power control unit configured to control the converter using a PWM control method so that the power recovered through the converter is returned to the AC power supply;an input voltage detection unit configured to detect a supply voltage being supplied from the AC power supply to the converter;a DC link voltage detection unit configured to detect a DC link voltage which is an output voltage of the converter; anda regenerative method switching unit configured to, during power regeneration, perform switching between the 120-degree conduction method and the PWM control method in accordance with a given criterion, based on a voltage value detected by the DC link voltage detection unit.2. The motor drive ...

Robot with daisy-chainable robot arm

A robot includes a motor drive power source for converting a voltage supplied from a power source to a motor drive unit-grade voltage and outputting it, a motor drive unit for converting a motor drive unit-grade voltage output from the motor drive power source to a motor drive voltage and outputting it, a motor driven to be rotated by a motor drive voltage output by the motor drive unit, a robot arm on which the motor drive unit and the motor are arranged, and a robot controller which is provided independently of the robot arm and on which the motor drive power source is arranged.

Amplifier selection device, amplifier selection method, and computer readable medium having function of clarifying erroneous selection part

An amplifier selection device includes: a characteristic data storage configured to store a database including respective characteristic data of a plurality of motors, amplifiers, and common power sources; a motor selector configured to display a list of identification information of the motors and select a motor; an amplifier selector configured to display a list of identification information of the amplifiers and select an amplifier; a common power source selector configured to display a list of identification information of the common power sources and select a common power source; a display configured to display a combination of the motor, the amplifier, and the common power source; and a determiner configured to determine whether a relation of the characteristic data satisfies first and second conditions, and when at least one of the conditions is not satisfied, the display clarifies a combination which fails to satisfy the first or second condition.

Corrosion detection circuit for circuit board and motor drive having the same

A corrosion detection circuit according to an embodiment of the present invention includes an insulating board; a test chip having a corrodible metal, mounted on the surface of the insulating board; a plurality of resistors each having a higher resistance value than the test chip after a change due to an environment including contact with the test chip and the adhesion of dust to the test chip; and a voltage detection circuit for detecting the output voltage of a divided voltage output point, when a voltage is applied to the test chip and a voltage dividing circuit using the plurality of resistors. The voltage detection circuit detects a break in the test chip by corrosion based on a variation in the output voltage.

Motor drive apparatus having function for determining abnormality of main power supply voltage

A motor drive apparatus in which a main power supply used for motor drive is supplied via a magnetic contactor includes: a monitoring unit that monitors a main power supply voltage at an AC power supply input side of the magnetic contactor in a state in which contacts of the magnetic contactor are opened; a determination unit that determines whether the main power supply voltage monitored by the monitoring unit is normal; and a magnetic contactor control unit that outputs a command that controls opening and closing of contacts of the magnetic contactor, wherein when it is determined by the determination unit that the main power supply voltage is abnormal, the magnetic contactor control unit maintains an output of an open command such that the contacts of the magnetic contactor are opened.

HOUSING OF ELECTRONIC COMPONENTS DETECTING DEPOSITED CUTTING FLUID AND MOTOR DRIVE SYSTEM INCLUDING HOUSING

A motor drive system enabling detection of cutting fluid deposited at a housing of electronic components. A housing holding electronic components of a motor drive system has top faces slanted with respect to the horizontal plane so as to guide the deposited cutting fluid. The housing further includes storage parts collecting the cutting fluid guided along the top faces. The storage parts may be graduated so as to enable the collected amount of the cutting fluid to be measured. The storage parts may be configured to be detachable from the housing.

Motor-drive unit having heat radiator

A compact motor-drive unit wherein each component can be stably fixed to the unit. A motor-drive unit has a plurality of substrates each having a circuit for driving a motor; semiconductor devices mounted on the respective substrates; at least one smoothing capacitor mounted on at least one of the substrates; and a heat radiator having a heat-transferring surface adjacent to the semiconductors. The smoothing capacitor is positioned within a swept area formed by moving the first substrate arranged generally parallel to a base surface, in a counter-front direction, so that the smoothing capacitor is separated from the first substrate.

MOTOR DRIVE APPARATUS HAVING FUNCTION OF DETECTING FAILURE OF ELECTRIC SHUNT

A motor drive apparatus according to the present invention comprises: an electric shunt which shunts a current flowing through a power line connected to a motor; a first current detection unit and a second detection unit, each disposed on either side of a node shunted by the electric shunt, for detecting the current flowing through the power line; a shunt commanding unit which gives a shunt command to the electric shunt to effect shunting of the current; and a determining unit which determines the presence or absence of a fault in the electric shunt, based on the shunt command and on current values detected by the first current detection unit and the second detection unit.

Motor drive apparatus having function of suppressing temporal variation of regenerative current

A motor drive apparatus comprises: a converter which converts DC power into AC power and returns the AC power to an AC power supply; a 120-degree conduction regenerative power control unit which controls the converter using a 120-degree conduction method so that the power recovered through the converter is returned to the AC power supply; a PWM regenerative power control unit which controls the converter using a PWM control method so that the power is returned to the AC power supply; an input voltage detection unit which detects a supply voltage supplied to the converter; a DC link voltage detection unit which detects a DC link voltage; and a regenerative method switching unit which, during power regeneration, performs switching between the 120-degree conduction method and the PWM control method in accordance with a given criterion, based on a voltage value detected by the DC link voltage detection unit.

MOTOR CONTROL DEVICE THAT DECREASES POWER CONSUMED BY CONTROL POWER SOURCE WHEN POWER FAILS

A motor control device has a current value sampling unit configured to sample a current value of a motor, a PWM signal generation unit configured to generate a PWM signal to drive the motor, based on the sampled current value of the motor, and a power supply stop unit configured to stop supply of power from a control power supply to a peripheral depending on power stored in a DC link part and power to which the control power source can supply when an alternating-current power source fails. 1. A motor control device to which power is supplied from a control power source configured to supply power to a peripheral of a motor in order to control the motor driven by power stored in a DC link part connected to an alternating-current power source via a converter , the motor control device comprising:a current value sampling unit configured to sample a current value of the motor;a PWM signal generation unit configured to generate a PWM signal to drive the motor, based on the sampled current value of the motor; anda power supply stop unit configured to stop supply of power from the control power source to the peripheral depending on the power stored in the DC link part and power to which the control power source can supply when the alternating-current power source fails.2. The motor control device according to claim 1 , whereinthe power supply stop unit stops the supply of power from the control power supply to the peripheral if the power stored in the DC link part is larger than any one of first power necessary to retract an driven object connected to the motor to a region where the driven object does not interfere with an object, second power necessary to stop the motor in order to avoid interference of the driven object connected to the motor with the object, and the sum of the first power and the second power, and the power to which the control power source can supply is smaller than the sum of power necessary to drive the peripheral and power necessary to drive the ...

Motor control device that decreases power consumed by control power source when power fails

A PWM signal generation unit generates a PWM signal to drive a motor, based on a current value of the motor sampled by a current value sampling unit, a position or speed of the motor sampled by a motor sampling unit, and a position or speed of a driven object sampled by a driven object sampling unit. An operation stop unit stops the operation of any one of the motor sampling unit and the driven object sampling unit depending on the power stored in the DC link part and power to which the control power source can supply when the alternating-current power source fails.

Attachment for preventing liquid from adhering to electronic component

An attachment capable of preventing liquid from adhering to a specific electronic component within an electronic device. An electronic substrate has an attachment which can be attached to and detached from the electronic substrate. The attachment has an attachment part detachably attached to an edge of the electronic substrate; and a shield part connected to or integrally formed with the attachment part. The attachment part is a clip-like member having a certain degree of elasticity, and is configured to grip an edge of the electronic substrate so that the attachment is held at a predetermined place. The shield part has an inclined surface, and is configured to shield the electronic component so that liquid, such as a splash or droplet moving toward the electronic component, does not adhere to the component when the attachment is held at the predetermined place.

Current detection circuit not affected by noise

A current detection circuit includes: a resistor in a current path; first and second signal transmission units that transmit signals of first and second terminal sides of the resistor; a first difference operation unit that executes a difference operation on the signals transmitted by the first and second signal transmission units; a noise-capturing transmission unit starting point; third and fourth signal transmission units connected with the noise-capturing transmission unit starting point; a second difference operation unit that executes a difference operation on the signals transmitted by the third and fourth signal transmission units; and a summing operation unit that executes a summing operation on the first and second difference signals, wherein the first signal transmission unit and the fourth signal transmission unit are disposed close to each other and the second signal transmission unit and the third signal transmission unit are disposed close to each other.

MOTOR DRIVER HAVING FUNCTION OF DETECTING INSULATION RESISTANCE

In a motor driver of the present invention, voltage and current values measured by a voltage and current detector and a voltage value measured by a voltage detector are determined as first measurement results, in the state of turning on semiconductor switching elements connected between a positive terminal of a capacitor and motor coils. Voltage and current values measured by the voltage and current detector and a voltage value measured by the voltage detector are determined as second measurement results, in the state of, as to a group A, turning on a semiconductor switching element connected between the positive terminal of the capacitor and the motor coil, and as to a group B, turning on semiconductor switching elements connected between a negative terminal of the capacitor and the motor coil. The insulation resistance values are calculated between the motor coils of each group A or B and a ground. 1. A motor driver comprising:a converter unit having a rectifier circuit configured to rectify an AC voltage supplied from an AC power supply through a first switch to a DC voltage;a power supply unit configured to smooth the DC voltage rectified by the rectifier circuit using a capacitor;a plurality of inverter units configured to convert the DC voltage from the power supply unit into an AC voltage by switching operation of an upper arm semiconductor switching element connected between a positive terminal of the capacitor and a motor coil and a lower arm semiconductor switching element connected between a negative terminal of the capacitor and the motor coil, to drive a plurality of motors;a second switch configured to connect one terminal of the capacitor to a ground;a voltage and current detector configured to measure a current flowing between the one terminal of the capacitor and the ground, and a voltage between the one terminal of the capacitor and the ground;a voltage detector configured to measure a voltage across the capacitor; andan insulation resistance ...

CONDUCTION PATH STRUCTURE OF ROBOT

A conduction path structure of a robot in which a conduction path has a simplified structure is provided. A conduction path structure of a robot includes: a structural mechanism which functions as a support and has a conductor portion; an actuator that operates the structural mechanism; and a conduction path through which driving power and/or a control signal is supplied to the actuator, wherein the conduction path also serves as the conductor portion of the structural mechanism. 1. A conduction path structure of a robot , comprising:a structural mechanism which functions as a support and has a conductor portion;an actuator that operates the structural mechanism; anda conduction path through which driving power and/or a control signal is supplied to the actuator, whereinthe conduction path also serves as the conductor portion of the structural mechanism.2. The conduction path structure of the robot according to claim 1 , whereinthe structural mechanism further includes a cover that covers an outer surface of the structural mechanism and is formed of an insulating flexible material.3. The conduction path structure of the robot according to claim 1 , whereinthe structural mechanism forms an arm of the robot in which a plurality of conductive structural members as the conductor portion, serving as electrically independent conduction paths are coupled with an insulating member interposed therebetween.4. The conduction path structure of the robot according to claim 3 , whereinthe conduction path of the arm forms a power supply conductor that supplies an output of a power supply source to a motor which is a driving source of the actuator.5. The conduction path structure of the robot according to claim 3 , whereinthe conduction path of the arm forms a control signal conductor that supplies a control signal to the actuator. This application is based on and claims the benefit of priority from Japanese Patent Application No. 2016-236781, filed on 6 Dec. 2016, the content of ...

Machine learning device for learning assembly operation and component assembly system

A machine learning device includes a state observation unit for observing state variables that include at least one of the state of an assembly constituted of first and second components, an assembly time and information on a force, the result of a continuity test on the assembly, and at least one of position and posture command values for at least one of the first and second components and direction, speed and force command values for an assembly operation; and a learning unit for learning, in a related manner, at least one of the state of the assembly, the assembly time and the information on the force, the result of the continuity test on the assembly, and at least one of the position and posture command values for at least one of the first and second components and the direction, speed and force command values for the assembly operation.

MOTOR DRIVE DEVICE SUPPRESSING VOLTAGE FLUCTUATION IN DC LINK CAPACITOR

To provide a motor drive device that suppresses voltage fluctuation of a DC link capacitor, as well as enabling for low cost and size reduction. A motor control unit sets a threshold of voltage at which to start regeneration to a first threshold in a case of an increased amount per unit time of a DC voltage value detected by a voltage detection part being less than a certain amount, and sets the threshold of voltage at which to start regeneration to a second threshold that is larger than the first threshold, in a case of the increased amount per unit time of the DC voltage value detected by the voltage detection part being at least a certain amount. 1. A motor drive unit comprising:a converter that converts AC electric power from a power source into DC electric power;a DC link capacitor that is connected to the converter;a voltage detection unit that detects a DC voltage value of the DC link capacitor;an inverter that is connected to the DC link capacitor, converts the DC electric power into drive electric power of a motor, and converts the DC electric power into three-phase AC electric power in a case of the DC voltage value detected by the voltage detection unit reaching a threshold at which to start regeneration of the motor; anda motor control unit that sets the threshold to a first threshold in a case of an increased amount per unit time of the DC voltage value being less than a certain amount, and sets the threshold to a second threshold that is larger than the first threshold, in a case of the increased amount per unit time of the DC voltage value being at least a certain amount.2. The motor drive device according to claim 1 , characterized in that the motor control unit determines that the increased amount per unit time of the DC voltage value is less than the certain amount claim 1 , in a case of the increased amount per unit time of the DC voltage value being smaller than an increased amount per unit time of DC voltage value during deceleration of the ...

AMPLIFIER SELECTION DEVICE, AMPLIFIER SELECTION METHOD, AND COMPUTER READABLE MEDIUM HAVING FUNCTION OF CLARIFYING ERRONEOUS SELECTION PART

An amplifier selection device includes: a characteristic data storage configured to store a database including respective characteristic data of a plurality of motors, amplifiers, and common power sources; a motor selector configured to display a list of identification information of the motors and select a motor; an amplifier selector configured to display a list of identification information of the amplifiers and select an amplifier; a common power source selector configured to display a list of identification information of the common power sources and select a common power source; a display configured to display a combination of the motor, the amplifier, and the common power source; and a determiner configured to determine whether a relation of the characteristic data satisfies first and second conditions, and when at least one of the conditions is not satisfied, the display clarifies a combination which fails to satisfy the first or second condition. 1. An amplifier selection device configured to select a motor , an amplifier , and a common power source , the amplifier selection device comprising:a characteristic data storage configured to store a database including respective characteristic data of a plurality of motors, a plurality of amplifiers, and a plurality of common power sources;a motor selector configured to display a list of identification information of the plurality of motors, display a motor selection command input section for receiving a selection command to select the motor to correspond to the identification information of the plurality of motors, and select the motor for which the selection command is input into the motor selection command input section;an amplifier selector configured to display a list of identification information of the plurality of amplifiers, display an amplifier selection command input section for receiving a selection command to select the amplifier to be combined with the motor selected by the motor selector to ...

Motor drive device incorporating an overcurrent detection unit

Eine Motorantriebsvorrichtung 1 beinhaltet eine Motorantriebseinheit 11 zum Umwandeln von GS-Spannung auf einer GS-Zwischenkreisseite in eine WS-Spannung, wenn eine Schaltvorrichtung S ein-/ausgeschaltet ist, und zum Ausgeben der WS-Spannung an eine WS-Motorseite, eine Gate-Antriebsschaltung 12 zum Ein-/Ausschalten der Schaltvorrichtung S der Motorantriebseinheit 11 in Reaktion auf einen Gate-Antriebsbefehl, eine Gate-Antriebsbefehlerzeugungseinheit 13 zum Ausgeben eines eines EIN-Befehls und eines AUS-Befehls als Gate-Antriebsbefehl an die Gate-Antriebsschaltung 12 und eine Überstromerkennungseinheit 14 zum Erkennen eines Überstroms in Bezug auf einen Strom, der durch einen GS-Zwischenkreis fließt, oder einen Wechselstrom auf der WS-Motorseite, wobei, wenn die Überstromerkennungseinheit 14 den Überstrom erkennt, die Gate-Antriebsbefehlerzeugungseinheit 13 abwechselnd den EIN-Befehl und den AUS-Befehl ausgibt, während sie ein Verhältnis des AUS-Befehls zum EIN-Befehl schrittweise erhöht und schließlich nur den AUS-Befehl ausgibt. A motor driving apparatus 1 includes a motor driving unit 11 for converting DC voltage on a DC link side into an AC voltage when a switching device S is turned on / off, and outputting AC voltage to an AC motor side, a gate side. Drive circuit 12 for turning on / off the switching device S of the motor drive unit 11 in response to a gate drive command, a gate drive command generation unit 13 for outputting one of an ON command and an OFF command as a gate drive command to the gate drive circuit 12 and a Overcurrent detection unit 14 for detecting an overcurrent with respect to a current flowing through a DC link or an AC current at the AC motor side, wherein when the overcurrent detection unit 14 detects the overcurrent, the gate drive command generation unit 13 alternately ON command and outputs the OFF command while stepping a ratio of the OFF command to the ON command e increases and finally outputs only the OFF command.

Verstärkerauswahlvorrichtung, Verstärkerauswahlverfahren und computerlesbares Medium mit einer Funktion zum Löschen eines falschen Auswahlteils

Verstärkerauswahlvorrichtung (101), die zum Auswählen eines Motors (71, 72, 73, 74), eines Verstärkers (61, 62) und einer gemeinsamen Stromquelle (50) eingerichtet ist, wobei die Verstärkerauswahlvorrichtung umfasst:einen zum Speichern einer Datenbank umfassend entsprechende Merkmalsdaten einer Vielzahl von Motoren, einer Vielzahl von Verstärkern und einer Vielzahl von gemeinsamen Stromquellen eingerichteten Merkmalsdatenspeicher (1);einen zum Anzeigen einer Liste von Identifikationsinformationen der Vielzahl von Motoren, Anzeigen eines Motorauswahlbefehls-Eingabeabschnitts zum Empfangen eines Auswahlbefehls zum Auswählen des Motors entsprechend der Identifikationsinformationen der Vielzahl von Motoren und Auswählen des Motors, für den der Auswahlbefehl im Motorauswahlbefehls-Eingabeabschnitt eingegeben wird, eingerichteten Motorwähler (2);einen zum Anzeigen einer Liste von Identifikationsinformationen der Vielzahl von Verstärkern, Anzeigen eines Verstärkerauswahlbefehls-Eingabeabschnitts zum Empfangen eines Auswahlbefehls zum Auswählen des Verstärkers zur Kombination mit dem vom Motorwähler ausgewählten Motor entsprechend der Identifikationsinformationen der Vielzahl von Verstärkern und Auswählen des Verstärkers, für den der Auswahlbefehl im Verstärkerauswahlbefehls-Eingabeabschnitt eingegeben wird, eingerichteten Verstärkerwähler (3);eine zum Anzeigen einer Kombination des ausgewählten Motors und des ausgewählten Verstärkers eingerichtete Anzeige (31); undeinen zum Ermitteln, ob eine Beziehung der Merkmalsdaten zwischen dem ausgewählten Motor und dem ausgewählten Verstärker eine erste Bedingung erfüllt, unter welcher der Verstärker den Motor antreibt, eingerichteten Ermittler (5),wobei, wenn der Ermittler ermittelt, dass die erste Bedingung nicht erfüllt ist, die Anzeige eine Kombination des Motors und des Verstärkers löscht, von der eine Beziehung der Merkmalsdaten die erste Bedingung nicht erfüllt,wobei die Verstärkerauswahlvorrichtung einen zum Anzeigen einer ...

Motorbetriebsvorrichtungsanordnung, die mehrere Motorbetriebsvorrichtungen umfasst, und Motorbetriebsvorrichtung, die einen Kühlkörper umfasst

Motorbetriebsvorrichtung (14A, 72A, 112A, 132A), Folgendes umfassend:einen ersten Kühlkörper (20, 76, 116, 134);einen ersten Leistungserfassungsteil (152), der die Leistungsaufnahme der Motorbetriebsvorrichtung (14A, 72A, 112A, 132A) erfasst;einen Kommunikationsteil (138), der mit einer zweiten Motorbetriebsvorrichtung (14B, 72B, 112B, 132B) kommuniziert, die einen zweiten Kühlkörper (44, 86, 118, 144) umfasst, der mit dem ersten Kühlkörper (20, 76, 116, 134) über einen Verbindungsteil (66, 74, 114, 137) verbunden ist, der eine Wärmeleitung zwischen dem ersten Kühlkörper (20, 76, 116, 134) und dem zweiten Kühlkörper (44, 86, 118, 144) zulässt;einen zweiten Leistungserfassungsteil (154), der die Leistungsaufnahme der zweiten Motorbetriebsvorrichtung (14B, 72B, 112B, 132B) über den Kommunikationsteil (138) erfasst;einen Temperaturerfassungsteil (156), der eine Temperatur des ersten Kühlkörpers (20, 76, 116 ,134) oder des zweiten Kühlkörpers (44, 86, 118, 144) erfasst;einen Wärmewiderstands-Berechnungsteil (158), der den kombinierten Wärmewiderstand des ersten Kühlkörpers (20, 76, 116, 134) und des zweiten Kühlkörpers (44, 86, 118, 144) basierend auf der Gesamtleistungsaufnahme der Leistungsaufnahme der Motorbetriebsvorrichtung (14A, 72A, 112A, 132A) und der Leistungsaufnahme der zweiten Motorbetriebsvorrichtung (14B, 72B, 112B, 132B) und auf der durch den Temperaturerfassungsteil (156) erfassten Temperatur berechnet; undeinen Toleranzberechnungsteil (160), der eine Toleranz der Gesamtleistungsaufnahme der Motorbetriebsvorrichtung (14A, 72A, 112A, 132A) und der zweiten Motorbetriebsvorrichtung (14B, 72B, 112B, 132B) basierend auf dem durch den Wärmewiderstands-Berechnungsteil (158) berechneten kombinierten Wärmewiderstand und einer vorbestimmten zulässigen Temperatur der Motorbetriebsvorrichtung (14A, 72A, 112A, 132A) berechnet.

Motorbetriebsvorrichtungsanordnung, die mehrere Motorbetriebsvorrichtungen umfasst, und Motorbetriebsvorrichtung, die einen Kühlkörper umfasst

Eine Motorbetriebsvorrichtungsanordnung ist in der Lage, Unterschiede in den Temperaturen von Motorbetriebsvorrichtungen abhängig von Betriebsbedingungen zu unterdrücken. Die Motorbetriebsvorrichtungsanordnung umfasst eine erste Motorbetriebsvorrichtung, die einen ersten Kühlkörper umfasst, eine zweite Motorbetriebsvorrichtung, die benachbart zu der ersten Motorbetriebsvorrichtung angeordnet ist und einen von dem ersten Kühlkörper getrennten zweiten Kühlkörper umfasst, und einen Verbindungsteil, der den ersten Kühlkörper und den zweiten Kühlkörper miteinander verbindet, um eine Wärmeleitung zwischen dem ersten Kühlkörper und dem zweiten Kühlkörper zuzulassen.

Motorantriebsvorrichtung mit einer Funktion zur Bestimmung einer Anomalie der Hauptstromversorgungsspannung

Eine Motorantriebsvorrichtung 1, bei der eine für den Motorantrieb verwendete Hauptstromversorgung über ein Magnetschütz 4 geliefert wird, weist eine Überwachungseinheit 11, die in einem Zustand, in dem Kontakte des Magnetschützes 4 geöffnet sind, eine Hauptstromversorgungsspannung an einer Wechselstromversorgungseingangsseite des Magnetschützes 4 überwacht; eine Bestimmungseinheit 12, die bestimmt, ob die durch die Überwachungseinheit 11 überwachte Hauptstromversorgungsspannung normal ist; und eine Magnetschütz-Steuereinheit 13, die einen Befehl ausgibt, der das Öffnen und Schließen von Kontakten des Magnetschützes 4 steuert, auf, wobei die Magnetschütz-Steuereinheit 13 bei einer Bestimmung durch die Bestimmungseinheit 12, dass die Hauptstromversorgungsspannung abnormal ist, eine Ausgabe eines Öffnungsbefehls, der eine derartige Steuerung vornimmt, dass die Kontakte des Magnetschützes 4 geöffnet sind, beibehält.

Motor driving controller with a DC bus

Leiterplatte mit funktion zur erfassung einer verschlechterung und motorantrieb mit derselben

Eine Leiterplatte gemäß einer Ausführungsform der vorliegenden Erfindung ist aus einem Isoliermaterial gebildet und derart konfiguriert, dass auf dieser Komponenten und eine Verdrahtung montiert sind. Die Leiterplatte beinhaltet ein Flüssigkeitsbecken zum Speichern einer Flüssigkeit; ein Paar an Verschlechterungserfassungsleiterbahnen, von welchen eine an einem Ende mit einer Stromzufuhr verbunden und an dem anderen Ende in dem Flüssigkeitsbecken angeordnet ist, und von welchen die andere an einem Ende mit einer Masse durch einen Widerstand verbunden und an dem anderen Ende in dem Flüssigkeitsbecken angeordnet ist; eine Spannungserfassungsschaltung zum Erfassen einer Spannung zwischen den einen Enden der einen und der anderen Verschlechterungserfassungsleiterbahnen; und eine Verschlechterungsbestimmungsschaltung zum Bestimmen basierend auf der erfassten Spannung, ob sich die Isolierung zwischen den anderen Enden der einen und der anderen Verschlechterungserfassungsleiterbahnen verschlechtert oder nicht.

Leiterplatte mit Funktion zur Erfassung einer Verschlechterung und Motorantrieb mit derselben

Leiterplatte (101, 101b, 101c, 101d, 101e, 102, 1021, 1022, 1023, 103, 1031, 104, 105, 106, 107), die aus einem Isoliermaterial gebildet ist und derart konfiguriert ist, dass auf dieser eine Komponente und eine Verdrahtung montiert sind, wobei die Leiterplatte (101, 101b, 101c, 101d, 101e, 102, 1021, 1022, 1023, 103, 1031, 104, 105, 106, 107) Folgendes umfasst:ein Flüssigkeitsbecken (2) zum Speichern einer Flüssigkeit einschließlich eines wasserlöslichen oder wasserunlöslichen Schneidfluids;ein Paar an Verschlechterungserfassungsleiterbahnen (41c, 41d), von welchen eine an einem Ende mit einer Stromzuführung (31) verbunden ist und an dem anderen Ende in dem Flüssigkeitsbecken (2) angeordnet ist, und von welchen die andere an einem Ende mit einer Masse verbunden ist, wobei ein Widerstand (81) mit einem Ende der Stromzuführung (31) oder einem Ende der Masse verbunden ist, und an dem anderen Ende in dem Flüssigkeitsbecken (2) angeordnet ist;eine Spannungserfassungsschaltung (5, 51) zum Erfassen einer Spannung zwischen dem einen Ende der einen der Verschlechterungserfassungsleiterbahnen (41c, 41d) und dem einen Ende der anderen der Verschlechterungserfassungsleiterbahnen (41d, 41c); undeine Verschlechterungsbestimmungsschaltung (6) zum Bestimmen basierend auf der erfassten Spannung, ob sich die Isolierung zwischen dem anderen Ende der einen der Verschlechterungserfassungsleiterbahnen (41c, 41d) und dem anderen Ende der anderen der Verschlechterungserfassungsleiterbahnen (41d, 41c) verschlechtert oder nicht.

Zum Nachweis der Haftung von Schneidflüssigkeit fähige Motorantriebsvorrichtung

Eine Motorantriebsvorrichtung kann einem Benutzer das sichere Erkennen des Effekts ermöglichen, wenn eine Schneidflüssigkeit an einem Gehäuse haftet. Die Motorantriebsvorrichtung umfasst ein elektronisches Bauteil und ein Gehäuse, welches das elektronische Bauteil aufnimmt. Ein Teil des Gehäuses ändert die Farbe, wenn er mit einer Schneidflüssigkeit in Kontakt kommt, und das Gehäuse kann sich zu verschiedenen Farben entsprechend der Konzentration der Schneidflüssigkeit ändern.

Gedruckte Leiterplattenstruktur zum Antrieb eines elektrischen Motors

Stromdetektionsschaltung, die nicht durch rauschen beeinflusst ist

Eine Stromdetektionsschaltung 1 umfasst: einen Widerstand 11 in einem Strompfad; eine erste Signalübertragungseinheit 12-1, die ein Signal sendet, das ein Potenzial an einer ersten Anschlussseite des Widerstandes 11 anzeigt; eine zweite Signalübertragungseinheit 13-1, die ein Signal sendet, das ein Potenzial an einer zweiten Anschlussseite des Widerstandes 11 anzeigt; eine erste Differenzoperationseinheit 14-1, die eine Differenzoperation auf den Signalen, die durch die erste Signalübertragungseinheit 12-1 und die zweite Signalübertragungseinheit gesendet werden, ausführt; einen Rauscherfassungsübertragungseinheitsstartpunkt 16, der in einer Motoransteuervorrichtung vorgesehen ist; eine dritte Signalübertragungseinheit 12-2 und eine vierte Signalübertragungseinheit 13-2, die mit dem Rauscherfassungsübertragungseinheitsstartpunkt 16 verbunden sind; eine zweite Differenzoperationseinheit 14-2, die eine Differenzoperation auf den Signalen ausführt, die durch die dritte Signalübertragungseinheit 12-2 und die vierte Signalübertragungseinheit 13-2 gesendet werden; und eine Summieroperationseinheit 15, die eine Summieroperation auf dem ersten Differenzsignal und dem zweiten Differenzsignal ausführt, wobei die erste Signalübertragungseinheit 12-1 und die vierte Signalübertragungseinheit 13-2 nahe beieinander angeordnet sind und die zweite Signalübertragungseinheit 13-1 und die dritte Signalübertragungseinheit 12-2 nahe beieinander angeordnet sind.

Printed circuit board structure for motor driving device

Motorantriebsvorrichtung, die eine Überstromerkennungseinheit beinhaltet

Motorantriebsvorrichtung (1)zum Umwandeln einer GS-Spannung in eine WS-Spannung durch einen Schaltbetrieb einer Schaltvorrichtung und Speisen von Wechselstrom zu einem WS-Motor (200),wobei die Motorantriebsvorrichtung umfasst:eine Motorantriebseinheit (11), die einen Wechselrichter umfasst, wobei der Wechselrichter die Schaltvorrichtung umfasst und so konfiguriert ist, dass sie die GS-Spannung auf einer GS-Zwischenkreisseite in eine WS-Spannung umwandelt,wenn die Schaltvorrichtung abwechselnd und widerholt ein-/ausgeschaltet ist, und die WS-Spannung an die WS-Motor-(200)-Seite ausgibt;eine Gate-Antriebsschaltung (12), die so konfiguriert ist, dass sie die Schaltvorrichtung der Motorantriebseinheit (11) in Reaktion auf einen EIN-Befehl eingeschaltet und die Schaltvorrichtung der Motorantriebseinheit (11) in Reaktion auf einen AUS-Befehl ausgeschaltet;eine Gate-Antriebsbefehlerzeugungseinheit (13), die so konfiguriert ist, dass sie abwechselnd und wiederholt einen von dem EIN-Befehls und dem AUS-Befehls als einen Gate-Antriebsbefehl an die Gate-Antriebsschaltung (12) ausgibt; undeine Überstromerkennungseinheit (14), die so konfiguriert ist, dass siedas Erzeugen eines Überstroms in Bezug auf einen Strom, der durch einen GS-Zwischenkreis der Motorantriebseinheit (11) fließt, oder einen Wechselstrom auf der WS-Motor-(200)-Seite auf der Basis der festgelegten Überstromerkennungshöhe erkennt; undeine GS-Zwischenkreisstrom-Erkennungseinrichtung (16), die so konfiguriert ist, dass sie einen Strom erkennt, der durch den GS-Zwischenkreis fließt,wobei, wenn die Überstromerkennungseinheit (14) das Erzeugen des Überstroms auf der Basis einer festgelegten Überstromerkennungshöhe erkennt,die Gate-Antriebsbefehlerzeugungseinheit (13) sich wiederholende abwechselnde Ausgaben des EIN-Befehls und des AUS-Befehls erzeugt,während sie ein Verhältnis des AUS-Befehls zum EIN-Befehl schrittweise erhöht und schließlich nur den AUS-Befehl ausgibt, so dass eine Gate-Spannung der ...

Motor drive device assembly including plurality of motor drive devices, and motor drive device including heatsink

A motor drive device assembly capable of suppressing differences in temperatures of motor drive devices depending on operational conditions. The motor drive device assembly includes a first motor drive device including a first heatsink, a second motor drive device located adjacent to the first motor drive device and including a second heatsink formed separately from the first heatsink, and a connection part connecting the first heatsink and the second heatsink to each other, to allow thermal conduction between the first heatsink and the second heatsink.