CN207719973U - A kind of cooling structure of magnetic suspension motor rotor - Google Patents

A kind of cooling structure of magnetic suspension motor rotor Download PDF

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Publication number
CN207719973U
CN207719973U CN201721869411.XU CN201721869411U CN207719973U CN 207719973 U CN207719973 U CN 207719973U CN 201721869411 U CN201721869411 U CN 201721869411U CN 207719973 U CN207719973 U CN 207719973U
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China
Prior art keywords
cooling
fan
mandrel
motor rotor
magnetic suspension
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Active
Application number
CN201721869411.XU
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Chinese (zh)
Inventor
沈维婷
熊伟华
杜志军
吴立华
董继勇
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Nanjing Cigu Technology Co Ltd
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Nanjing Cigu Technology Co Ltd
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Priority to CN201721869411.XU priority Critical patent/CN207719973U/en
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Publication of CN207719973U publication Critical patent/CN207719973U/en
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Abstract

The utility model discloses a kind of cooling structures of magnetic suspension motor rotor, including magnetic axis bearing, mandrel and the enclosed cooling fan being made of fan body and fan housing body, fan body in enclosed cooling fan is threaded on mandrel, fan housing body is threaded on the inner wall of magnetic axis bearing, and is formed with cooling air channel between fan body and fan housing body;Coolant flow channel is equipped on the axis direction of mandrel, the coolant flow channel and cooling air channel connect.Cooling fan of the utility model in rotor lower end uses closed type structure, it is larger to solve the problems, such as that the windage loss of open type cooling fan or external cooling fan consumes, cooling wind enters magnetic axis bearing from ventilation hole, enter mandrel from coolant flow channel, increase cooling incoming air area, by the blade part of enclosed cooling fan, cooling wind is cooled down successively upwards along the direction of cooling air channel;Cooling air channel reduces cooling wind loss, increases cooling effect.

Description

A kind of cooling structure of magnetic suspension motor rotor
Technical field:
The utility model is related to a kind of cooling structures of magnetic suspension motor rotor.
Background technology:
In existing magnetcisuspension floating centrifugal motor, the open type cooling fan or external cooling fan generally used is cold But windage loss consumption is larger, and cooling effect is poor, and cooling efficiency is low, and motor internal temperature is excessively high, and axial sensor on magnetic bearing can be because Temperature is excessively high and scaling loss, magnetic bearing are easily damaged.
Utility model content:
The utility model is to provide a kind of magnetic suspension motor rotor to solve the above-mentioned problems of the prior art Cooling structure.
Technical solution used by the utility model has:A kind of cooling structure of magnetic suspension motor rotor, including magnetic bearing Seat, mandrel and the enclosed cooling fan being made of fan body and fan housing body, the fan body in enclosed cooling fan are threadedly coupled On mandrel, fan housing body is threaded on the inner wall of magnetic axis bearing, and is formed with cooling air channel between fan body and fan housing body; Coolant flow channel is equipped on the axis direction of mandrel, the coolant flow channel and cooling air channel connect.
Further, the side wall of the fan body is equipped with blade part, and fan body and blade part are integrally formed.
Further, the outer circle wall of two end of the fan body extends outwardly and forms boss portion, the boss portion Inner wall is ramp structure.
Further, the fan housing body is made of electric bakelite, and fan body, which is adopted, to be formed from aluminium.
Further, the side wall of the fan body is equipped with first through hole, and the second through-hole is equipped on the side wall of mandrel, the One through-hole and the second through-hole connect.
Further, the axial direction of the magnetic axis bearing is equipped with ventilation hole.
The utility model has the advantages that:Cooling fan of the utility model in rotor lower end uses enclosed knot It is larger to solve the problems, such as that the windage loss of open type cooling fan or external cooling fan consumes for structure, and cooling wind enters magnetic axis from ventilation hole Bearing enters mandrel from coolant flow channel, increases cooling incoming air area, by the blade part of enclosed cooling fan, will cool down Wind cools down successively upwards along the direction of cooling air channel;Cooling air channel reduces cooling wind loss, increases cooling effect.
Description of the drawings:
Fig. 1 is the utility model structure chart.
Fig. 2 is the structure chart between enclosed cooling fan and mandrel in the utility model.
Specific implementation mode:
The utility model will be further described below with reference to the accompanying drawings.
Such as Fig. 1 and Fig. 2, the utility model discloses a kind of cooling structure of magnetic suspension motor rotor, including magnetic axis bearing 1, Mandrel 2 and the enclosed cooling fan 6 being made of fan body 61 and fan housing body 62,61 spiral shell of fan body in enclosed cooling fan 6 Line is connected on mandrel 2, and fan housing body 62 is threaded on the inner wall of magnetic axis bearing 1, and fan body 61 stretches in fan housing body 62, and Cooling air channel 60 is formed between fan body 61 and fan housing body 62.Coolant flow channel 21 is equipped on the axis direction of mandrel 2, this is cold But runner 21 and cooling air channel 60 connect.
The side wall of fan body 61 in the utility model be equipped with blade part 613, fan body 61 and the one of blade part 613 at Type.
The outer circle wall of 61 liang of ends of fan body extends outwardly and forms boss portion 614, and the inner wall of the boss portion 614 is Ramp structure.Two boss portions 614 form water conservancy diversion cover structure, and ramp structure is convenient for the flowing of wind, good heat dissipation effect.
Fan housing body 62 is made of electric bakelite, and insulating heat-conductive effect is good.Fan body 61, which is adopted, to be formed from aluminium, and intensity is high.
For ease of connecting between coolant flow channel 21 and cooling air channel 60, it is logical that first is equipped on the side wall of fan body 61 Hole 611 is equipped with the second through-hole 22 on the side wall of mandrel 2, and first through hole 611 and the second through-hole 22 connect, first through hole 611 It connects with cooling air channel 60, the second through-hole 22 and coolant flow channel 21 connect.
It is equipped with ventilation hole 12 in the axial direction of magnetic axis bearing 1.
Cooling fan of the utility model in rotor lower end uses closed type structure, solves open type cooling fan or external cold But the windage loss of fan consumes larger problem, and cooling wind enters magnetic axis bearing 1 from ventilation hole 12, enters mandrel 2 from coolant flow channel 21, Cooling incoming air area is increased, by the blade part 613 of enclosed cooling fan 6, by cooling wind along the side of cooling air channel 60 To cooling down successively upwards;Cooling air channel 60 reduces cooling wind loss, increases cooling effect.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as The scope of protection of the utility model.

Claims (6)

1. a kind of cooling structure of magnetic suspension motor rotor, it is characterised in that:Including magnetic axis bearing (1), mandrel (2) and by wind The enclosed cooling fan (6) of fan body (61) and fan housing body (62) composition, fan body (61) screw thread in enclosed cooling fan (6) connect It is connected on mandrel (2), fan housing body (62) is threaded on the inner wall of magnetic axis bearing (1), and fan body (61) and fan housing body (62) cooling air channel (60) is formed between;Coolant flow channel (21), the coolant flow channel are equipped on the axis direction of mandrel (2) (21) it connects with cooling air channel (60).
2. the cooling structure of magnetic suspension motor rotor as described in claim 1, it is characterised in that:The side of the fan body (61) Wall is equipped with blade part (613), and fan body (61) and blade part (613) are integrally formed.
3. the cooling structure of magnetic suspension motor rotor as described in claim 1, it is characterised in that:(61) two end of the fan body The outer circle wall at end extends outwardly and forms boss portion (614), and the inner wall of the boss portion (614) is ramp structure.
4. the cooling structure of magnetic suspension motor rotor as described in claim 1, it is characterised in that:The fan housing body (62) uses Electric bakelite is made, and fan body (61), which is adopted, to be formed from aluminium.
5. the cooling structure of magnetic suspension motor rotor as described in claim 1, it is characterised in that:The side of the fan body (61) Wall is equipped with first through hole (611), and the second through-hole (22) is equipped on the side wall of mandrel (2), and first through hole (611) and second are led to Hole (22) connects.
6. the cooling structure of magnetic suspension motor rotor as described in claim 1, it is characterised in that:The magnetic axis bearing (1) Axial direction is equipped with ventilation hole (12).
CN201721869411.XU 2017-12-28 2017-12-28 A kind of cooling structure of magnetic suspension motor rotor Active CN207719973U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721869411.XU CN207719973U (en) 2017-12-28 2017-12-28 A kind of cooling structure of magnetic suspension motor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721869411.XU CN207719973U (en) 2017-12-28 2017-12-28 A kind of cooling structure of magnetic suspension motor rotor

Publications (1)

Publication Number Publication Date
CN207719973U true CN207719973U (en) 2018-08-10

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Application Number Title Priority Date Filing Date
CN201721869411.XU Active CN207719973U (en) 2017-12-28 2017-12-28 A kind of cooling structure of magnetic suspension motor rotor

Country Status (1)

Country Link
CN (1) CN207719973U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107968527A (en) * 2017-12-28 2018-04-27 南京磁谷科技有限公司 A kind of cooling structure of magnetic suspension motor rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107968527A (en) * 2017-12-28 2018-04-27 南京磁谷科技有限公司 A kind of cooling structure of magnetic suspension motor rotor

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CP03 Change of name, title or address

Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province

Patentee after: Nanjing Cigu Technology Co., Ltd

Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100

Patentee before: NANJING CIGU LIMITED Corp.

CP03 Change of name, title or address