22-08-2013 дата публикации
Номер: US20130214625A1
A voltage conversion device for a motor in combination with the motor. The motor includes a stator winding. The winding leads are led out from the stator winding. The conversion device includes a socket and a plug. Part of the winding leads are in electric connection with the socket. The rest of the winding leads is in electric connection with the plug. The plug is inserted into the socket for changing the connection between the polyphase windings. 2. The apparatus of claim 1 , wherein{'b': 3', '31, 'the socket () comprises a plurality of jacks ();'}{'b': 32', '31, 'terminal sleeves () are installed inside the jacks ();'}{'b': 2', '32, 'part of the winding leads () are in electric connection with the terminal sleeves ();'}{'b': 4', '41, 'the plug () comprises a plurality of contact pins ();'}{'b': 2', '41, 'the rest winding leads () are in electric connection with the contact pins (); and'}{'b': 41', '32, 'the contact pins () are embedded in the terminal sleeves ().'}3. The apparatus of claim 1 , wherein{'b': 33', '3, 'an annular lug boss () is raised from an edge at an end part of the socket ();'}{'b': 34', '33, 'a notch () is formed on the annular lug boss ();'}{'b': 42', '4, 'a step () is arranged at an end part of the plug ();'}{'b': 43', '42, 'a lug () is raised from the step ();'}{'b': 33', '42, 'the annular lug boss () is supported on the step (); and'}{'b': 43', '34, 'the lug () is embedded in the notch ().'}4. The apparatus of claim 2 , wherein{'b': 33', '3, 'an annular lug boss () is raised from an edge at an end part of the socket ();'}{'b': 34', '33, 'a notch () is formed on the annular lug boss ();'}{'b': 42', '4, 'a step () is arranged at an end part of the plug ();'}{'b': 43', '42, 'a lug () is raised from the step ();'}{'b': 33', '42, 'the annular lug boss () is supported on the step (); and'}{'b': 43', '34, 'the lug () is embedded in the notch ().'}5. The apparatus of claim 3 , wherein{'b': '1', 'the motor () is a single-phase motor and comprises a ...
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