CN202405922U - Coil end part heat dissipation device - Google Patents
Coil end part heat dissipation device Download PDFInfo
- Publication number
- CN202405922U CN202405922U CN2011204575495U CN201120457549U CN202405922U CN 202405922 U CN202405922 U CN 202405922U CN 2011204575495 U CN2011204575495 U CN 2011204575495U CN 201120457549 U CN201120457549 U CN 201120457549U CN 202405922 U CN202405922 U CN 202405922U
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- CN
- China
- Prior art keywords
- rotor
- heat
- stator
- absorbing sheet
- end part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Motor Or Generator Cooling System (AREA)
Abstract
The present utility model discloses a coil end part heat dissipation device to solve heat dissipation of a motor coil end part. The device comprises a motor shell 1, a heat absorbing sheet 2, a coil end part 3, a stator 4, a rotor 5 and a rotor fan 6, wherein the heat absorbing sheet 2 is arranged inside the motor shell 1, the stator 4 is arranged inside the shell, the coil end part 3 is arranged on the stator 4, the rotor 5 is arranged inside the stator, and the rotor fan 6 is arranged on the rotor 5. The device has the following working principle, air blown out by the rotor fan is used for bringing away heat after passing the coil end part, heat in the air is brought away when heated air passes the heat absorbing sheet 2 again, and cooled air is blown out by the rotor fan again. Heat absorbed by the heat absorbing sheet 2 is radiated to the surrounding air through the shell. The device is simple and reliable to manufacture, low in costs, convenient for using and easy to popularize.
Description
Technical field
The utility model relates to a kind of device that is dispelled the heat in the motor winding end.
Background technology
For a long time, in the middle of the operation of motor, in the middle of the especially enclosed motor, the heating of end winding is difficult to control.Because the heating of the coil in the groove can be passed to shell with heat conducting mode through stator core and distributed; And end winding is because isolated existence; And other the thing of getting along well directly contacts, so the fan blade that carries on the rotor can only lean on rotor rotation the time carries out enforceable convection current to the air of inside.But air is only at internal convection, though absorption of air the heat of end, be difficult to heat is dissipated; The result causes motor interior air and end winding together to be heated, and temperature is obviously high than the coil temperature in the stator core, because of the end winding long-term work under higher temperature; Cause overhang insulation aging in advance; And then causing phase fault, turn-to-turn short circuit causes motor to damage.In the middle of actual production, it is exactly this reason that motor phase fault or turn-to-turn short circuit great majority appear at end winding.
Summary of the invention:
To the problems referred to above, the goal of the invention of the utility model is to provide a kind of device that can help end winding to dispel the heat, to solve the end winding unfavorable problem of dispelling the heat.
For achieving the above object, the said a kind of end winding heat abstractor of the utility model comprises motor casing; Heat absorbing sheet, end winding, stator; Rotor, rotor fan, wherein, there is said heat absorbing sheet motor casing inside; Stator is arranged in the motor casing, in the middle of the stator rotor is housed, rotor fan is arranged above the rotor.
Preferably, said heat absorbing sheet can be cast on motor casing
Preferably, said heat absorbing sheet can be made heat sink and is installed on the shell.
The beneficial effect of the utility model is:
1, the heat absorption of passing through the end winding air that rotor fan is blown out is fallen, and heat absorbing sheet conducts to shell with the heat that absorbs, and through shell heat is dispersed in the middle of the ambient air.
2, reduce the temperature of end winding, solve, prevent to insulate Yin Gaowen and wearing out in advance of causing, so just can solve the problem that end winding damages easily because of the situation of end winding long-term work at higher temperature.
3, simple and reliable, practical and convenient
Description of drawings
Fig. 1 is the structure cutaway view of the utility model
Embodiment
Below in conjunction with Figure of description the utility model is done further to describe.
As shown in Figure 1, the said end winding heat abstractor of utility model embodiment comprises motor casing 1, heat absorbing sheet 2, end winding 3, stator 4, rotor 5 and rotor fan 6.Wherein, said heat absorbing sheet 2 is arranged in the motor casing 1, stator 4 is arranged in the shell, end winding 3 is arranged on the stator 4, stator interior has rotor 5, and rotor fan 6 is arranged on the rotor 5.
The operation principle of this end winding heat abstractor is: when rotor when stator interior is rotated, the air that rotor fan blows out is taken away the heat of end winding through end winding.Hot-air through end winding is again through heat absorbing sheet, and heat absorbing sheet falls the heat absorption of hot-air and conducts to motor casing, and shell is dispersed into heat in the middle of the ambient air again.Blown out by rotor fan again through heat absorbing sheet and cooled air, so go round and begin again, make the temperature of end winding reduce.
As the further embodiment of the utility model, described heat absorbing sheet can be to be cast directly on the motor casing,
Described heat absorbing sheet can be independent part, is installed on the motor casing.
It more than is the utility model preferred embodiment; But the protection range of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection range of the utility model.Therefore, the protection range of the utility model should be as the criterion with the protection range that claim was defined.
Claims (3)
1. a motor winding end heat abstractor is characterized in that, comprises motor casing (1), heat absorbing sheet (2), end winding (3), stator (4), rotor (5) and rotor fan (6); Wherein, Said heat absorbing sheet (2) is arranged in the motor casing (1), stator (4) is arranged in the shell, end winding (3) is arranged on the stator (4); Stator interior has rotor (5), and rotor fan (6) is arranged on the rotor (5).
2. motor winding according to claim 1 end heat abstractor is characterized in that heat absorbing sheet (2) is cast on the motor casing (1).
3. motor winding according to claim 1 end heat abstractor is characterized in that heat absorbing sheet (2) is independent part, is installed on the motor casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204575495U CN202405922U (en) | 2011-11-18 | 2011-11-18 | Coil end part heat dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204575495U CN202405922U (en) | 2011-11-18 | 2011-11-18 | Coil end part heat dissipation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405922U true CN202405922U (en) | 2012-08-29 |
Family
ID=46703539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204575495U Expired - Fee Related CN202405922U (en) | 2011-11-18 | 2011-11-18 | Coil end part heat dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769417A (en) * | 2016-08-17 | 2018-03-06 | 罗伯特·博世有限公司 | Motor |
-
2011
- 2011-11-18 CN CN2011204575495U patent/CN202405922U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769417A (en) * | 2016-08-17 | 2018-03-06 | 罗伯特·博世有限公司 | Motor |
| CN107769417B (en) * | 2016-08-17 | 2021-03-05 | 罗伯特·博世有限公司 | Electric motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |