ATTACHMENT ARRANGEMENT FOR FAN

The subject of the invention is an attachment arrangement for the installation of a fan to insert preferably radial flow compressor, for the installation of the fan in a ventilation aggregate or a like, in which for the fan upper-laterally assembly area limited by a plate-like hanging up rack and under-laterally by a drip tray is out-arranged, when which assembly assembling is intended, the fan in such a manner that the blowing direction takes place essentially upward, and in the hanging up rack an opening for the outlet of the fan is out-arranged, whereby the attachment arrangement exhibits a poetry from flexible material and under the fan housing a ground support from flexible material, appropriate appropriate at the outlet of the fan, on the drip tray, whereby the fan with the poetry and ground support mentioned, in the ventilation aggregate is built when assembly assembling planned for it. In ventilation aggregates fans are used, with which air is blown into an area and air from an area is sucked off. The fans are protected generally by a filter, but them get dirty nevertheless with the time and require therefore the cleaning. Ventilation aggregates will be able increasingly also in small real estate and such a thing used and ventilation aggregates of this kind further even for housingspecific or be implemented spacespecific ventilation systems. In ventilation aggregates generally two fans are present, of which one for supply air and the other one are intended for exhaust air. The fans require occasionally cleaning, why they must be developed from the ventilation aggregate. The development of the fan from the ventilation aggregate is difficult in most cases and tools and expert workers required. So far with ventilation aggregates a very much meaning problem factor was. In former times the fans were fastened with a flange surrounding the fan outlet to the ventilation aggregate by screwed joint. Additionally to this attachment arrangement a separate damping element had to be used for absorbing the vibration arising during the fan enterprise and by this caused sound formation with the attachment of the fan. The fan attachment arrangements of the state of the art, described above, could be improved importantly with an attachment arrangement in accordance with the earlier Finnish patent specification No. 89,201 the Anmelderin. With the attachment arrangement after this writing the fan without tools and with few expertise can be cultivated by the ventilation aggregate abund. In addition with the attachment arrangement a close execution obtained in such a manner that leakages were substantially eliminated and by this caused hissing and noise. Further the fan is separate during this attachment arrangement from the metal trunk of the ventilation aggregate, whereby the noises due to vibration were eliminated. When disadvantage of the attachment arrangement can do after the FI-patent No. 89,201 however is regarded that into the area, into which the fan is built in such a manner that the blowing direction of the fan is essentially upward arranged, had for the fan an extra a retaining structure to be planned and had far at least for the duration of the transport of the ventilation aggregate the fan with a special transportation support in its place be supported. The available invention is the basis the task to improve the arrangements of the state of the art and in particular the arrangement presented in the FI-patent 89,201 substantially. For the solution of this task the invention essentially teaches that the poetry of the outlet by the opening of the hanging up rack led, the outlet of the fan surrounding elongated piece of collar as well as at the upper surface of the hanging up rack supporting flange-hurry exhibits and that the ground support is immovably built to the drip tray level into the drip tray toward and that in the ground support one out-arranged bearing area according to the form of the lower part of the housing of the fan is trained, on which the fan housing is installed. The invention essentially brings the same advantages with itself as the arrangement after the FI-patent to 89,201, but one of the most important advantages also over the patent mentioned consists of the fact that the fan is sealed better than to the body of the ventilation aggregate before, whereby the volume is substantially smaller in relation to this earlier solution. In measurements it was proven that the volume sank during the arrangement according to invention RK 411,490 B in relation to this earlier solution approximately 6 to 7 decibels. A lowering of this size means that the volume is fallen on half compared with before approximate. Further advantages and characteristic characteristics of the invention come out from the following detailed description of the invention. In the following the invention under reference to the figures of the attached design is described in detail. Fig. 1 shows a ventilation aggregate and the arrangement of the fans as completely schematic perspective representation in the ventilation aggregate mentioned. Fig. the fan attachment shows 2 as exploded view. lo Fig. schematically and one shows 3 partially on average represented side view of the fan attachment arrangement according to invention. The fan attachment arrangement according to invention is thus intended for application in connection with a ventilation aggregate, preferably a ventilation aggregate, with which on the one hand air will abgesogen into an area blown and on the other hand air from an area. A ventilation aggregate of this kind is in Fig. 1 shown and it is generally named reference symbol 1 in this figure. The ventilation aggregate 1 is represented in the illustration with open Vorderwand, so that the accommodation of the fans is to be recognized 10 in the ventilation aggregate better. The ventilation aggregate 1 is equipped with the necessary openings 2 and connections, for supply air and exhaust air. Further the ventilation aggregate 1 is equipped with necessary filters, heating devices and heat recovery devices, which are however in this connection not more near described and represented, because they are not a component of the invention. In the ventilation aggregate after Fig. 1 two fans 10 are used, which are of the type radial flow compressors. The fans 10 are built into the ventilation aggregate 1 when an assembly assembling planned for it, which is limited on the one hand by a hanging up rack 4 and on the other hand by a drip tray 5. The installation of the fans into the ventilation aggregate 1 is in Fig. 2 and 3 more exactly represented. As was already mentioned further above, the fan 10 of the type is a radial flow compressor, which essentially upward exhibits to the side opening a Saugöffnung 12 as well as according to invention an outlet 13 arranged in the installation way in the fan housings 11 or similar housings. The fan 10 is installed in the ventilation aggregate 1 between hanging up rack 4 and drip tray 5, to which it is supported and fastened with the attachment arrangement according to invention. The attachment arrangement exhibits an outlet poetry 20 appropriate at the outlet 13, with which the fan 10 to the hanging up rack 4 is fastened, and belonged to others to the attachment arrangement one into the drip tray installed ground support 30, onto which the fan housing 11 is installed. In the fan hanging up rack 4 existing in the ventilation aggregate 1 an opening 6 is implemented for the outlet 13 of the fan and the outlet poetry 20, which corresponds to the form of the fan outlet 13 in its form. In the case represented in the figures the form concerned is square or rectangular. The outlet poetry 20 is implemented in its form accordingly and it consists of a piece of collar of 21 and one flange-hurries 22. In the case after Fig. 2 and 3 elongated implemented in such a manner is the piece of collar of 21 of the outlet poetry that it is enough in inserted condition over the fan outlet 13, whereby the upper edge 14 of the outlet penetrates 21 into the opening 23 of the poetry into the piece of collar. Thus flange-hurries 22 of the poetry is during inserted outlet poetry on the upper surface of the hanging up rack of 4th far ones is at the piece of collar of 21 because of its exterior surface the piece of collar circulating increase 24 with small distance of flange-hurries 22 of the poetry out-arranged in such a manner that between flange-hurry 22 and increase 24 a groove remains. Thus the edge of the opening 6 trained in the plate-like hanging up rack 4 arrives into the groove mentioned during inserted outlet poetry 20, with which the outlet poetry 20 remains safe in its place. Further shown or a hook-like mounting plate 15 of similar kind can be intended in accordance with the illustrations at the outlet 13 of the fan 10 in the figures, which secures the attachment between fan 10 and outlet poetry 20. As shown in the figures, the mounting plate concerned 15 supports itself to flange-hurries 22 of the outlet poetry off. The ground support 30 belonging to the attachment arrangement is thus in the ventilation aggregate 1 3 RK 411,490 B installed onto the drip tray 5. The fan housing 11 is installed onto the ground support 30 and but is provided the ground support 30 with one the form of the fan housing 11 according to out-arranged bearing area 32. In the drip tray plate 5 an increase 7 directed upward is implemented and accordingly is out-arranged at the lower part of the ground support 30 a circular projection/lead 35, whereby the increase 7 of the drip tray is implemented to go in these if the ground support 30 is inserted. In this way it becomes secured that the ground support 30 remains in its intended position. The ground support 30 shown in the figures exhibits flange-like carrying feet 31, with which the ground support 30 the drip tray 5 rests upon. In order to arrange the assembly of the fan 10 causing before on the ground support 30 flexible and less noise than, assembly warts 33 are implemented, with those the fan housing 11 not directly on the bearing area 32 at the formed bearing area 32 of the ground support, but rests on the assembly warts 33. Appropriate assembly warts 34 are at the lower surface of the carrying feet 31 trained in such a manner that the ground support 30 with the assembly warts mentioned 34 on the drip tray 5 lies. Outlet poetry 20 and ground support 30 e.g. are from an appropriate flexible material like rubber or flexible plastic. In particular the ground support in its shaping can e.g. deviate from the form shown in the figures therein that the ground support 30 from a uniform flexible Gummioder plastic plate is arranged, in whose upper surface one the form of the fan housing 11 appropriate bearing area and accordingly at the lower surface one the increase 7 of the drip tray appropriate recess is prepared. With the attachment arrangement according to invention the fan 10 is completely separate from the metallic contact with the body constructions of the ventilation aggregate 1, with which the sound formation is kept extremely small. In the managing the invention was described on the basis of examples under reference to the figures of the design. The invention is not limited however to the remark examples shown in the figures, but the individual execution forms of the invention can vary in the context of the inventive realization defined in the patent claims.