CN202889046U - Waterproof structure of external rotor electric machine - Google Patents
Waterproof structure of external rotor electric machine Download PDFInfo
- Publication number
- CN202889046U CN202889046U CN 201220598097 CN201220598097U CN202889046U CN 202889046 U CN202889046 U CN 202889046U CN 201220598097 CN201220598097 CN 201220598097 CN 201220598097 U CN201220598097 U CN 201220598097U CN 202889046 U CN202889046 U CN 202889046U
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- CN
- China
- Prior art keywords
- external rotor
- electric machine
- end cap
- electric motor
- concave 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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Abstract
The utility model relates to a waterproof structure of an external rotor electric machine. The external rotor electric machine comprises an inner stator, an external rotor matched with the inner stator, and an electric machine end cover covered on the upper part of the external rotor; the end surface of an electric machine end cover wall is provided with a groove part, the matching part of the external rotor and the groove part of the electric machine end cover is provided with a boss part; the waterproof structure comprises a water retaining slot arranged at inner side of the boss part of the external rotor, the inner periphery of the boss part forms the outer wall surface of the water retaining slot; when the groove part of the electric machine end cover is matched with the boss part of the external rotor, a gap is formed between the inner periphery of the groove part of the electric machine end cover and the outer wall surface of the water retaining slot. By arranging the waterproof groove on the external rotor, a gap sealing is formed between the electric machine end cover and the external rotor to achieve the waterproof effect; the waterproof structure provided by the utility model is small in friction force, less in heating, long in service, free from any sealing material, simple and compact in structure.
Description
Technical field
The utility model relates to the external rotor electric machine field, particularly relates to a kind of waterproof construction of external rotor electric machine.
Background technology
At present, external rotor electric machine mainly is comprised of internal stator assembly, outer rotor component, and stator comprises end cap, stator core and coil windings etc., and coil windings is on stator core; Rotor assembly mainly is comprised of rotor core, cast aluminium sliver, cast aluminium end ring, axle sleeve, motor shaft etc.Rotor is by rotating shaft and two bearing fits that are installed on the stator.The structures shape of this motor it can not accomplish to seal fully, the motor water resistance is generally bad.
Summary of the invention
The purpose of this utility model provides a kind of waterproof construction of external rotor electric machine.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of waterproof construction of external rotor electric machine, described external rotor electric machine comprises internal stator, the external rotor that matches with described internal stator, cover the electric motor end cap on described external rotor top, the end face of described motor side tegmental wall has concave part, the cooperation place of described external rotor and described electric motor end cap concave part has boss portion, described waterproof construction is included in the inboard water-blocking groove that arranges of boss portion of described external rotor, the inner peripheral surface of described boss portion consists of the outside wall surface of described water-blocking groove, when the concave part of described electric motor end cap with after the boss portion of described external rotor matches, the inner peripheral surface of the concave part of described electric motor end cap and the outside wall surface of described water-blocking groove have the gap.
Preferably, described water-blocking groove is U-shaped.
Preferably, the outside wall surface of the concave part of described electric motor end cap offers osculum.
Preferably, the bottom width of the concave part of described electric motor end cap is less than the oral area width.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The utility model consists of clearance seal by the waterproof groove being set at external rotor, making between electric motor end cap and the external rotor, reach the effect of waterproof, and frictional force is little, and heating is few, and the life-span is long, need not any encapsulant, and simple and compact for structure.
Description of drawings
Accompanying drawing 1 is the cross-sectional schematic of external rotor electric machine in the utility model;
Wherein: 1, internal stator; 2, external rotor; 20, boss portion; 21, water-blocking groove; 22, gap; 3, electric motor end cap; 30, concave part.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
A kind of external rotor electric machine as shown in Figure 1, it comprises internal stator 1, the external rotor 2 that matches with internal stator 1, covers the electric motor end cap 3 on external rotor 2 tops, the end face of electric motor end cap 3 walls has concave part 30, external rotor 2 has boss portion 20 with concave part 30 cooperation places of electric motor end cap 3, when external rotor 2 cooperated with electric motor end cap 3, boss portion 20 was inserted in the concave part 30.The outside wall surface of the concave part 30 of electric motor end cap 3 offers osculum, this osculum can force the water that enters between external rotor 2 and the electric motor end cap 3 to be told under the formed blast of rotation at external rotor 2, discharge from osculum, and at the bottom width of the concave part 30 of electric motor end cap 3 less than the oral area width, from structure water can't be stopped, be conducive to water and naturally flow to the osculum discharge.
Such as Fig. 2, shown in 3, also be specially provided with waterproof construction on the external rotor 2, this waterproof construction comprises the water-blocking groove 21 that the inboard of the boss portion 20 of external rotor 2 arranges, the inner peripheral surface of boss portion 20 consists of the outside wall surface of water-blocking groove 21, in the present embodiment, it is U-shaped that water-blocking groove is, when the concave part 30 of electric motor end cap 3 with after the boss portion 20 of external rotor 2 matches, the inner peripheral surface of the concave part 30 of electric motor end cap 3 and the outside wall surface of water-blocking groove 21 have gap 22, make between electric motor end cap 3 and the external rotor 2 to consist of clearance seal, reach the effect of waterproof, and frictional force is little, and heating is few, and the life-span is long, need not any encapsulant, simple and compact for structure.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (4)
1. the waterproof construction of an external rotor electric machine, described external rotor electric machine comprises internal stator, the external rotor that matches with described internal stator, cover the electric motor end cap on described external rotor top, the end face of described motor side tegmental wall has concave part, the cooperation place of described external rotor and described electric motor end cap concave part has boss portion, it is characterized in that: described waterproof construction is included in the inboard water-blocking groove that arranges of boss portion of described external rotor, the inner peripheral surface of described boss portion consists of the outside wall surface of described water-blocking groove, when the concave part of described electric motor end cap with after the boss portion of described external rotor matches, the inner peripheral surface of the concave part of described electric motor end cap and the outside wall surface of described water-blocking groove have the gap.
2. the waterproof construction of a kind of external rotor electric machine according to claim 1, it is characterized in that: described water-blocking groove is U-shaped.
3. the waterproof construction of a kind of external rotor electric machine according to claim 1, it is characterized in that: the outside wall surface of the concave part of described electric motor end cap offers osculum.
4. the waterproof construction of a kind of external rotor electric machine according to claim 1, it is characterized in that: the bottom width of the concave part of described electric motor end cap is less than the oral area width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598097 CN202889046U (en) | 2012-11-14 | 2012-11-14 | Waterproof structure of external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598097 CN202889046U (en) | 2012-11-14 | 2012-11-14 | Waterproof structure of external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202889046U true CN202889046U (en) | 2013-04-17 |
Family
ID=48080436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220598097 Expired - Fee Related CN202889046U (en) | 2012-11-14 | 2012-11-14 | Waterproof structure of external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202889046U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242517A (en) * | 2014-10-10 | 2014-12-24 | 江苏富丽华通用设备有限公司 | Rotor |
| CN109539522A (en) * | 2018-12-11 | 2019-03-29 | 奥克斯空调股份有限公司 | A kind of motor mounting assembly, indoor unit, air-conditioning and electric motor mounting method |
| CN112865354A (en) * | 2021-01-14 | 2021-05-28 | 珠海格力电器股份有限公司 | Outer rotor motor and air conditioner with same |
| CN113014022A (en) * | 2021-02-07 | 2021-06-22 | 珠海格力电器股份有限公司 | Protection component, outer rotor motor casing subassembly and motor |
-
2012
- 2012-11-14 CN CN 201220598097 patent/CN202889046U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242517A (en) * | 2014-10-10 | 2014-12-24 | 江苏富丽华通用设备有限公司 | Rotor |
| CN109539522A (en) * | 2018-12-11 | 2019-03-29 | 奥克斯空调股份有限公司 | A kind of motor mounting assembly, indoor unit, air-conditioning and electric motor mounting method |
| CN112865354A (en) * | 2021-01-14 | 2021-05-28 | 珠海格力电器股份有限公司 | Outer rotor motor and air conditioner with same |
| CN112865354B (en) * | 2021-01-14 | 2022-02-11 | 珠海格力电器股份有限公司 | Outer rotor motor and air conditioner with same |
| CN113014022A (en) * | 2021-02-07 | 2021-06-22 | 珠海格力电器股份有限公司 | Protection component, outer rotor motor casing subassembly and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215622 Zhao Feng West Ring Road No. 10, Le Yu Town, Zhangjiagang City, Suzhou, Jiangsu Patentee after: JIANGSU FULIHUA GENERAL EQUIPMENT CO.,LTD. Address before: 215622 Zhao Feng West Ring Road No. 10, Le Yu Town, Zhangjiagang City, Suzhou, Jiangsu Patentee before: JIANGSU FULIHUA GENERAL EQUIPMENT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20211114 |