CN203014634U - External Hall device of brushless motor for electric car - Google Patents
External Hall device of brushless motor for electric car Download PDFInfo
- Publication number
- CN203014634U CN203014634U CN2012206590672U CN201220659067U CN203014634U CN 203014634 U CN203014634 U CN 203014634U CN 2012206590672 U CN2012206590672 U CN 2012206590672U CN 201220659067 U CN201220659067 U CN 201220659067U CN 203014634 U CN203014634 U CN 203014634U
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- Prior art keywords
- motor
- hall
- electric car
- brushless
- external
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Brushless Motors (AREA)
Abstract
The utility model relates to an external Hall device of a brushless motor for an electric car and belongs to the motor technology field. The external Hall device of the brushless motor for the electric car comprises the motor, wherein a side face of the motor is equipped with a motor end cap. The external Hall device of the brushless motor for the electric car is characterized in that an outer side of the motor end cap is connected with a sensor casing, the sensor casing is internally equipped with a Hall support, the Hall support is equipped with a Hall sensor element, an inner motor shaft of the motor is equipped with a magnetic rotor of a signal generator, and a side face of the sensor casing is equipped with a small end cap. The external Hall device of the brushless motor for the electric car is designed based on frequent damage caused by high temperature to a brushless direct current motor Hall element, a Hall is a phase detection element for the brushless direct current motor, the brushless direct current motor cannot run after the Hall is damaged. According to the external Hall device of the brushless motor for the electric car, the Hall which is a phase detection mechanism is transferred to an outer portion of the motor from a stator core, so heat generated by coil and the stator core cannot be transferred to the Hall, and damage to the Hall caused by high temperature does not occur, so service life of the brushless direct current motor is greatly improved.
Description
Technical field
The utility model relates to the motor technology field, is specifically related to the external Hall device of a kind of electric vehicle brushless motor.
Background technology
Because electric motor car uses economical, environmental protection, convenient, very universal in town and country, but in vast rural area because road conditions are poor, and when agricultural production, the production road foundation in the farmland is soft, often overload, therefore electric vehicle motor is often because of overload, the reasons such as road conditions are poor are seriously generated heat, and even motor damage, cause unnecessary loss.Brshless DC motor runs well and must rely on the position of Hall element detection rotor, to provide information to controller, produces and exports correct waveform after the controller computing and offer motor.According to statistics, in the motor that burns, 86% be that Hall element damages, and Hall is a kind of semi-conductor electricity sub-element, although through special processing, but Hall element is very responsive to working temperature, surpassing 75 degree very easily damages, Hall element and coil are contained in stator coring groove together, and stator coil and iron core are heater elements, particularly during overload, the heating especially severe, Hall element causes direct current machine to work after damaging, and the structure of therefore improving existing electric vehicle brshless DC motor Hall element is extremely urgent.
The utility model content
Technical problem to be solved in the utility model is to improve a kind of simple in structure, the external Hall device of the electric vehicle brushless motor of long service life,
Technical problem to be solved in the utility model realizes by the following technical solutions:
The external Hall device of a kind of electric vehicle brushless motor, comprise a motor, the side of described motor is equipped with electric motor end cap, described electric motor end cap is connected with sensor outer housing on the outside, in described sensor outer housing, Hall support is installed, and on described Hall support, Hall sensor element is installed, the magnet rotor of signal generator is installed on motor shaft in described motor, the side of described sensor outer housing is equipped with small end cover, in order to keep in repair and seal this device, makes its dustproof and waterproof.
One end of described motor shaft passes small end cover.
Described small end cover is dismountable is arranged on the sensor outer housing side.
The beneficial effects of the utility model are: the utility model is based on the frequent passive high temperature of brshless DC motor Hall element and damages and design, and Hall is the phase-detecting element of brshless DC motor, after Hall damages, motor just can not turn round, the utility model is transferred to the motor outside to this part phase-detection of Hall mechanism from stator core, stator coil and the heat of sending out unshakable in one's determination just pass less than on Hall like this, Hall just can not damage because temperature is high, thus the life-span of having improved greatly brshless DC motor.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model splits structure chart.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
as Fig. 1, shown in Figure 2, the external Hall device of a kind of electric vehicle brushless motor, comprise a motor 1, the side of motor 1 is equipped with electric motor end cap 2, electric motor end cap is connected with sensor outer housing on 2 outsides, Hall support 3 is installed in sensor outer housing, Hall sensor element 4 is installed on Hall support 3, the magnet rotor 5 of signal generator is installed on the interior motor shaft 7 of motor 1, the side of sensor outer housing is equipped with small end cover 6, in order to keep in repair and seal this device, make its dustproof and waterproof, one end of motor shaft 7 passes small end cover 6, small end cover 6 is dismountable is arranged on the sensor outer housing side.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. external Hall device of electric vehicle brushless motor, comprise a motor, the side of described motor is equipped with electric motor end cap, it is characterized in that: described electric motor end cap is connected with sensor outer housing on the outside, in described sensor outer housing, Hall support is installed, on described Hall support, Hall sensor element is installed, the magnet rotor of signal generator is installed on motor shaft in described motor, the side of described sensor outer housing is equipped with small end cover.
2. the external Hall device of a kind of electric vehicle brushless motor according to claim 1, it is characterized in that: an end of described motor shaft passes small end cover.
3. the external Hall device of a kind of electric vehicle brushless motor according to claim 1 is characterized in that: described small end cover is dismountable is arranged on the sensor outer housing side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206590672U CN203014634U (en) | 2012-11-20 | 2012-11-20 | External Hall device of brushless motor for electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206590672U CN203014634U (en) | 2012-11-20 | 2012-11-20 | External Hall device of brushless motor for electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014634U true CN203014634U (en) | 2013-06-19 |
Family
ID=48606190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206590672U Expired - Fee Related CN203014634U (en) | 2012-11-20 | 2012-11-20 | External Hall device of brushless motor for electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203014634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978237A (en) * | 2016-06-17 | 2016-09-28 | 浙江绿源电动车有限公司 | External rotor motor and electric vehicle |
| CN115333299A (en) * | 2022-10-11 | 2022-11-11 | 常州祥明智能动力股份有限公司 | Hall circuit board seal structure and external rotor electric machine |
| CN115580100A (en) * | 2022-11-17 | 2023-01-06 | 睿动(山西)科技有限公司 | Brushless direct current motor based on Hall sensor and detection method |
-
2012
- 2012-11-20 CN CN2012206590672U patent/CN203014634U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978237A (en) * | 2016-06-17 | 2016-09-28 | 浙江绿源电动车有限公司 | External rotor motor and electric vehicle |
| CN105978237B (en) * | 2016-06-17 | 2019-04-05 | 浙江绿源电动车有限公司 | External rotor electric machine and electric vehicle |
| CN115333299A (en) * | 2022-10-11 | 2022-11-11 | 常州祥明智能动力股份有限公司 | Hall circuit board seal structure and external rotor electric machine |
| CN115580100A (en) * | 2022-11-17 | 2023-01-06 | 睿动(山西)科技有限公司 | Brushless direct current motor based on Hall sensor and detection method |
| CN115580100B (en) * | 2022-11-17 | 2023-03-03 | 睿动(山西)科技有限公司 | Brushless direct current motor based on Hall sensor and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131120 |