CN202949344U - Adjustable brushless motor with built-in Hall element - Google Patents
Adjustable brushless motor with built-in Hall element Download PDFInfo
- Publication number
- CN202949344U CN202949344U CN201220691301XU CN201220691301U CN202949344U CN 202949344 U CN202949344 U CN 202949344U CN 201220691301X U CN201220691301X U CN 201220691301XU CN 201220691301 U CN201220691301 U CN 201220691301U CN 202949344 U CN202949344 U CN 202949344U
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- Prior art keywords
- circuit board
- hall element
- brushless motor
- plate
- built
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- Expired - Fee Related
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Abstract
The utility model provides an adjustable brushless motor with a built-in Hall element, which comprises a rotating shaft, a circuit board, a Hall element and an end cover. The circuit board and the end cover are respectively connected with the rotating shaft. The circuit board is positioned on the inner side of the end cover. The Hall element is positioned on the circuit board. The rotating shaft is also connected with a bracket plate and an adjusting plate. The adjusting plate is positioned between the circuit board and the end cover. The adjacent axial end surfaces of the rotating shaft, the bracket plate and the adjusting plate are in contact with each other. The bracket plate is positioned at the inner side of the circuit board, and a gap is arranged between the bracket plate and the circuit board. The bracket plate is uniformly provided with induced magnets. The hall element is fixed on the circuit board. The circuit board is fixed on the adjusting plate. The circumferential rotation of the adjusting plate is realized through an adjusting bolt used for connecting the adjusting plate with the end cover, so that the accurate positioning of the Hall element relative to the induced magnets is ensured. In this way, the internal adjustment of the adjustable brushless motor is realized through the operation outside the adjustable brushless motor. Therefore, the defect in the prior art that the sensitivity of the Hall element is influenced by the increased temperature of a stator and extra protective means must be adopted due to the influence of the external environment on the Hall element and the circuit board are solved.
Description
Technical field
The utility model relates to a kind of brushless electric machine, a kind of especially built-in adjustment structure of brushless motor Hall element.
Background technology
The commutation of brushless motor at present mostly adopts the hall sensing rotor magnetic pole position to feed back to the enterprising line phase current conversion of controller, the hall sensing structure that adopts has: be directly installed on stator tooth section or slot part, Hall element be arranged on be fixed on motor internal on circuit board, Hall element is arranged on to be contained on circuit board stretches out the end cap outside on motor shaft and be convenient to debugging.
Be directly installed on tooth section or slot part in above-mentioned several method, because stator temperature rise rises, can have influence on Hall element is sensitivity, can damage be arranged to Hall element during high temperature; Hall element is arranged on is fixed on motor internal on circuit board, because inside can not be debugged, the position of Hall element needs point-device location, needs the parts machining precision of assembling to guarantee; Hall circuitboard is arranged on outside motor, considers electronic devices and components are affected by external environment, need to increase in addition safeguard procedures, cause increasing on size and cost.
The utility model content
The purpose of this utility model is to provide a kind of safe and reliable, built-in adjustable brushless motor of Hall element that input cost is low.
The utility model provides this Hall element built-in adjustable brushless motor, comprise rotating shaft, circuit board, Hall element, end cap, circuit board and end cap all are connected in rotating shaft, circuit board is positioned at the inboard of end cap, Hall element is positioned on circuit board, also be connected with supporting plate in described rotating shaft, adjust plate, adjust plate between circuit board and end cap, three's adjacent axial end is in contact with one another, supporting plate is positioned at the inboard of circuit board, and gapped between the two, be evenly equipped with induced magnet on supporting plate.
That described induced magnet is positioned at described supporting plate or outer circumference surface or axial end.
Described Hall element and welding circuit board are fixed, and its position is corresponding with the position of described induced magnet, and and induced magnet between have radially or end play.
On described end cap, the position of corresponding Hall element offers kidney slot, fixes by the adjusting bolt of passing kidney slot between described adjustment plate and end cap.
Screwed hole with described adjustment bolt coupling is arranged on described circuit board.
Hall element of the present utility model is fixed on circuit board, has avoided prior art to affect the defective of Hall element sensitivity because stator temperature raises; Circuit board is fixed on to be adjusted on plate, the adjusting bolt of adjusting plate and end cap by connection realizes adjusting rotating in a circumferential direction of plate, thereby guarantee Hall element relative induction magnet accurate location, realize internal regulation by peripheral operation, solved prior art and be the defective of avoiding the protector that external environment increases the impact of Hall element and circuit board.
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of the present utility model.
Fig. 2 is the axle geodesic structure schematic diagram of end cap in Fig. 1.
Embodiment
as shown in Figure 1, the utility model provides this Hall element built-in adjustable brushless motor, comprise rotating shaft 1, circuit board 5, Hall element 4, end cap 8, circuit board 5 and end cap 8 all are connected in rotating shaft 1, circuit board 5 is positioned at the inboard of end cap 8, Hall element 4 is positioned on circuit board 5, also be connected with supporting plate 2 in rotating shaft 1, adjust plate 6, adjust plate 6 between circuit board 5 and end cap 8, three's adjacent axial end is in contact with one another, supporting plate 2 is positioned at the inboard of circuit board 5, gapped between both adjacent axial ends, be evenly equipped with induced magnet 3 on supporting plate 2.Induced magnet 3 is positioned at the axial end of supporting plate 2.Hall element 4 is welded and fixed with circuit board 5, and its position is corresponding with the position of induced magnet 3.On end cap 8, the position of corresponding Hall element 4 offers kidney slot 9, adjusts between plate 6 and end cap 8 fixing by the adjusting bolt 7 of passing kidney slot 9.There is and adjusts the screwed hole of bolt 7 couplings on circuit board 5, be convenient to the status requirement different according to Hall element 4, utilize adjusting bolt 7 to drive adjustable plates 6 rotations, so that Hall element 4 is corresponding with induced magnet 3 positions.Adjusting bolt 7 is moved along the kidney slot 9 on end cap.
Induced magnet 3 can also be installed on the interior or outer circumference surface of supporting plate 2.Reserve 2 groups of above Hall element circuits and installation site on circuit board 5, use in order to safeguarding.
Claims (5)
1. built-in adjustable brushless motor of Hall element, comprise rotating shaft, circuit board, Hall element, end cap, circuit board and end cap all are connected in rotating shaft, circuit board is positioned at the inboard of end cap, Hall element is positioned on circuit board, it is characterized in that: also be connected with supporting plate in described rotating shaft, adjust plate, adjust plate between circuit board and end cap, three's adjacent axial end is in contact with one another; Supporting plate is positioned at the inboard of circuit board, and gapped between the two, is evenly equipped with induced magnet on supporting plate.
2. the built-in adjustable brushless motor of Hall element as claimed in claim 1 is characterized in that: that described induced magnet is positioned at described supporting plate or outer circumference surface or axial end.
3. the built-in adjustable brushless motor of Hall element as claimed in claim 1, it is characterized in that: described Hall element and welding circuit board are fixed, its position is corresponding with the position of described induced magnet, and and induced magnet between have radially or end play.
4. the built-in adjustable brushless motor of Hall element as claimed in claim 1, it is characterized in that: on described end cap, the position of corresponding Hall element offers kidney slot, fixes by the adjustment bolt that passes kidney slot between described adjustment plate and end cap.
5. the built-in adjustable brushless motor of Hall element as claimed in claim 1, is characterized in that: the screwed hole with described adjustment bolt coupling is arranged on described circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220691301XU CN202949344U (en) | 2012-12-14 | 2012-12-14 | Adjustable brushless motor with built-in Hall element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220691301XU CN202949344U (en) | 2012-12-14 | 2012-12-14 | Adjustable brushless motor with built-in Hall element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949344U true CN202949344U (en) | 2013-05-22 |
Family
ID=48425023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220691301XU Expired - Fee Related CN202949344U (en) | 2012-12-14 | 2012-12-14 | Adjustable brushless motor with built-in Hall element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202949344U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022612A (en) * | 2014-05-30 | 2014-09-03 | 沈阳兴华航空电器有限责任公司 | Brushless DC motor with adjustable position sensor |
| CN104410239A (en) * | 2014-11-13 | 2015-03-11 | 广东威灵电机制造有限公司 | Motor, magnet ring magnetizing tool and magnetizing method of motor |
| CN107834782A (en) * | 2017-12-05 | 2018-03-23 | 常州富兴机电有限公司 | A kind of adjustable outer-rotor structure of hall position |
| CN113659792A (en) * | 2021-07-16 | 2021-11-16 | 深圳拓邦股份有限公司 | Brushless coreless motor and stator device |
-
2012
- 2012-12-14 CN CN201220691301XU patent/CN202949344U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022612A (en) * | 2014-05-30 | 2014-09-03 | 沈阳兴华航空电器有限责任公司 | Brushless DC motor with adjustable position sensor |
| CN104410239A (en) * | 2014-11-13 | 2015-03-11 | 广东威灵电机制造有限公司 | Motor, magnet ring magnetizing tool and magnetizing method of motor |
| CN104410239B (en) * | 2014-11-13 | 2017-11-07 | 广东威灵电机制造有限公司 | Motor, the magnet ring for motor magnetize the magnetization method of frock and motor |
| CN107834782A (en) * | 2017-12-05 | 2018-03-23 | 常州富兴机电有限公司 | A kind of adjustable outer-rotor structure of hall position |
| CN113659792A (en) * | 2021-07-16 | 2021-11-16 | 深圳拓邦股份有限公司 | Brushless coreless motor and stator device |
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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: 20130522 Termination date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |