CN201699564U - Position sensing encoder assembly for driving system of permanent-magnet synchronous motor - Google Patents
Position sensing encoder assembly for driving system of permanent-magnet synchronous motor Download PDFInfo
- Publication number
- CN201699564U CN201699564U CN2010201975824U CN201020197582U CN201699564U CN 201699564 U CN201699564 U CN 201699564U CN 2010201975824 U CN2010201975824 U CN 2010201975824U CN 201020197582 U CN201020197582 U CN 201020197582U CN 201699564 U CN201699564 U CN 201699564U
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- pcb
- position sensing
- pmsm
- drive system
- servo motor
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Abstract
The utility model discloses a position sensing encoder assembly for the driving system of a permanent-magnet synchronous motor (PMSM), which comprises a photoelectric encoder. The photoelectric encoder comprises a support, a PCB fixedly arranged on the support, a reading head fixedly arranged on the top layer of the PCB, and a photoelectric encoding disc fixedly arranged on the rotating shaft of the PMSM. The position sensing encoder assembly is characterized in that the assembly additionally comprises a Hall sensor and the Hall sensor consists of a magnet ring which is fixedly arranged on the rotating shaft of the PMSM, and three Hall elements which are distributed around the magnet ring at intervals of 120 degrees and are fixedly arranged on the bottom layer of the PCB. Compared with the prior art, the utility model has the advantages that the structural design is reasonable, the installation and the debugging are convenient, the reliability is high, the production cost of the encoder of the driving system of the PMSM can be obviously reduced, the price is only approximately 30 percent of the price of the existing imported encoder, and the problem that the driving system of the PMSM is seriously restricted to be industrially applied and popularized in the equipment manufacture industry is effectively solved.
Description
Technical field
The utility model relates to the PMSM drive system, particularly relates to a kind of position sensing encoder component that is used for the permanent synchronous servo motor drive system.
Background technology
The drive system one of the main reasons on the high side of existing permanent synchronous servo motor (Permanent Magnet Synchronous Motor is abbreviated as PMSM) is a position sensing encoder expensive.For example based on the more employing increment type of the PMSM of vector control optical encoder, requirement can provide A, the B signal of two-way motor rotor position of U, V, W signal and the quadrature of three road motor rotor positions of 120 ° of phase phasic differences, the price of its read head is expensive especially, even be higher than the price of one 400 watts PMSM, seriously restricted the PMSM drive system and promoted in the commercial application of equipment manufacture.
Summary of the invention
Technical problem to be solved in the utility model is the defective that remedies above-mentioned prior art, provides a kind of manufacturing cost the lower position sensing encoder component that is used for the permanent synchronous servo motor drive system.
Technical problem of the present utility model is solved by the following technical programs.
This position sensing encoder component that is used for the permanent synchronous servo motor drive system, comprise photoelectric encoder, described photoelectric encoder comprises support, is fixedly installed on printed circuit board (PCB) (the Printedcircuit board on the support, be abbreviated as PCB), be fixedly installed on the read head of PCB top layer, with the photoelectric coded disk that is fixedly installed in the PMSM rotating shaft, the A of the two-way motor rotor position of described photoelectric encoder read head output orthogonal, B signal.
This characteristics that are used for the position sensing encoder component of permanent synchronous servo motor drive system are:
Also comprise Hall element, described Hall element is made up of the magnet ring and apart 120 ° of three Hall elements that are fixedly installed on the PCB bottom around described magnet ring distribution that are fixedly installed in the PMSM rotating shaft, and described Hall element output phase differs U, V, the W signal of 120 ° three road motor rotor positions.
This position sensing encoder component can provide two-way motor rotor position signal A, the B of three road motor rotor position signal U, V, W and the quadrature of 120 ° of phase phasic differences, can satisfy the position probing requirement based on the AC servo motor of vector control.
Technical problem of the present utility model is solved by following further technical scheme.
Described cradle top surface is provided with at least one PCB positioning convex column, is used for PCB is accurately navigated to support; Also be provided with at least two kidney slots corresponding, be used to adjust the phase relation of U, V, W signal and motor windings back electromotive force of three road motor rotor positions of Hall element output with the kidney slot of PCB.
Described support bottom surface is provided with the cylindrical cavity with the round boss matched in clearance of PMSM rear end cap, is used for support is accurately navigated to the PMSM back end cover for motor.
The top layer of described PCB is provided with read head pad and read head location hole, is used for fixing the installation read head.
The bottom of described PCB is provided with the Hall element pad, is used for fixing apart 120 ° of three Hall elements around described magnet ring distribution are installed.
The beneficial effect that the utility model is compared with the prior art is:
The utility model is based on the position sensing encoder component of being made up of photoelectric encoder and Hall element is set in the confined space of PMSM rear end, on mounting structure, realize precision positioning, guarantee apart 120 ° of three Hall elements that distribute around magnet ring and the axiality of PMSM rotating shaft and the convenience of assembling, has reasonable in design, Installation and Debugging are convenient, high reliability features.The utility model can significantly reduce the encoder manufacturing cost of PMSM servo drive system, price only be existing external import brand encoder price about 30%, efficiently solve the problem that serious restriction PMSM drive system is promoted in the equipment manufacture commercial application.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the generalized section of Fig. 1;
Fig. 3 is the supporting structure schematic diagram of Fig. 1;
Fig. 4 is the PCB structural representation that read head, Hall element and magnet ring are installed of Fig. 1.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing method of the present utility model is described.
A kind of position sensing encoder component that is used for the permanent synchronous servo motor drive system shown in Fig. 1～4, comprise photoelectric encoder, it is by support 1, be fixedly installed on the PCB 2 on the support 1, be fixedly installed on the read head 3 of PCB 2 top layers, form with the photoelectric coded disk 5 that is fixedly installed in the PMSM rotating shaft 4, support 1 end face is provided with at least one PCB positioning convex column 6 and at least two kidney slots corresponding with the kidney slot of PCB 27, support 1 bottom surface is provided with the cylindrical cavity 9 with round boss 8 matched in clearance of PMSM rear end cap 12, the top layer of PCB 2 is provided with read head pad and read head location hole, the A of the two-way motor rotor position of photoelectric encoder read head 3 output orthogonals, the B signal.
The position sensing encoder component of this embodiment also comprises Hall element, it is made up of the magnet ring 10 and apart 120 ° of three Hall elements 11 that are fixedly installed on PCB 2 bottoms around magnet ring 10 distributions that are fixedly installed in the PMSM rotating shaft 4, and the bottom of PCB 2 is provided with the Hall element pad.Hall element is exported U, V, the W signal of three road motor rotor positions.
The position sensing encoder component of this embodiment can provide A, the B signal of two-way motor rotor position of U, V, W signal and the quadrature of three road motor rotor positions of 120 ° of phase phasic differences, can satisfy the position probing requirement based on the AC servo motor of vector control.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design, make some alternative or obvious modification that are equal to; and performance or purposes are identical, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (6)
1. position sensing encoder component that is used for the permanent synchronous servo motor drive system, comprise photoelectric encoder, described photoelectric encoder comprises support, be fixedly installed on PCB on the support, be fixedly installed on the read head of PCB top layer, photoelectric coded disk with being fixedly installed in the PMSM rotating shaft is characterized in that:
Also comprise Hall element, described Hall element is made up of the magnet ring and apart 120 ° of three Hall elements that are fixedly installed on the PCB bottom around described magnet ring distribution that are fixedly installed in the PMSM rotating shaft.
2. the position sensing encoder component that is used for the permanent synchronous servo motor drive system as claimed in claim 1 is characterized in that:
Described cradle top surface is provided with at least one PCB positioning convex column.
3. the position sensing encoder component that is used for the permanent synchronous servo motor drive system as claimed in claim 1 or 2 is characterized in that:
Described support is provided with at least two kidney slots corresponding with the kidney slot of PCB.
4. the position sensing encoder component that is used for the permanent synchronous servo motor drive system as claimed in claim 3 is characterized in that:
Described support bottom surface is provided with the cylindrical cavity with the round boss matched in clearance of PMSM rear end cap.
5. the position sensing encoder component that is used for the permanent synchronous servo motor drive system as claimed in claim 4 is characterized in that:
The top layer of described PCB is provided with read head pad and read head location hole.
6. the position sensing encoder component that is used for the permanent synchronous servo motor drive system as claimed in claim 5 is characterized in that:
The bottom of described PCB is provided with the Hall element pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201975824U CN201699564U (en) | 2010-05-20 | 2010-05-20 | Position sensing encoder assembly for driving system of permanent-magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201975824U CN201699564U (en) | 2010-05-20 | 2010-05-20 | Position sensing encoder assembly for driving system of permanent-magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699564U true CN201699564U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201975824U Expired - Lifetime CN201699564U (en) | 2010-05-20 | 2010-05-20 | Position sensing encoder assembly for driving system of permanent-magnet synchronous motor |
Country Status (1)
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| CN (1) | CN201699564U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104067487A (en) * | 2012-01-31 | 2014-09-24 | Kodenshi株式会社 | Encoder sensor mounting body, drum disk encoder, and motor with encoder using same |
| CN104377931A (en) * | 2014-11-26 | 2015-02-25 | 朱福善 | Forming and driving method for triggering type permanent magnet brushless direct-current motor |
| CN105914953A (en) * | 2016-05-10 | 2016-08-31 | 上海市雷智电机有限公司 | Motor with high stability |
| CN106931996A (en) * | 2017-04-20 | 2017-07-07 | 湖州太平微特电机有限公司 | A kind of encoder |
| CN106969786A (en) * | 2017-04-24 | 2017-07-21 | 上海市雷智电机有限公司 | A kind of encoder and its installation method |
| CN107449450A (en) * | 2017-09-09 | 2017-12-08 | 尔智机器人（上海）有限公司 | A kind of magnetism encoder and joint |
| CN110611403A (en) * | 2019-08-12 | 2019-12-24 | 珠海格力电器股份有限公司 | Photoelectric encoder and servo motor integrated assembly structure and assembly method thereof |
-
2010
- 2010-05-20 CN CN2010201975824U patent/CN201699564U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104067487A (en) * | 2012-01-31 | 2014-09-24 | Kodenshi株式会社 | Encoder sensor mounting body, drum disk encoder, and motor with encoder using same |
| US9464923B2 (en) | 2012-01-31 | 2016-10-11 | Kodenshi Corporation | Encoder sensor mounting body, drum disk encoder, and motor with encoder using same |
| CN104067487B (en) * | 2012-01-31 | 2017-02-22 | Kodenshi株式会社 | Encoder sensor mounting body, drum disk encoder, and motor with encoder using same |
| CN104377931A (en) * | 2014-11-26 | 2015-02-25 | 朱福善 | Forming and driving method for triggering type permanent magnet brushless direct-current motor |
| CN105914953A (en) * | 2016-05-10 | 2016-08-31 | 上海市雷智电机有限公司 | Motor with high stability |
| CN106931996A (en) * | 2017-04-20 | 2017-07-07 | 湖州太平微特电机有限公司 | A kind of encoder |
| CN106931996B (en) * | 2017-04-20 | 2023-12-22 | 湖州太平微特电机有限公司 | Encoder |
| CN106969786A (en) * | 2017-04-24 | 2017-07-21 | 上海市雷智电机有限公司 | A kind of encoder and its installation method |
| CN107449450A (en) * | 2017-09-09 | 2017-12-08 | 尔智机器人（上海）有限公司 | A kind of magnetism encoder and joint |
| CN107449450B (en) * | 2017-09-09 | 2024-04-23 | 尔智机器人(珠海)有限公司 | Magneto-electric encoder and joint |
| CN110611403A (en) * | 2019-08-12 | 2019-12-24 | 珠海格力电器股份有限公司 | Photoelectric encoder and servo motor integrated assembly structure and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN LEADSHINE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LEISAI ELECTROMECHANICAL TECH. DEV. CO., LTD., SHENZHEN CITY Effective date: 20111110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111110 Address after: 518054, B building, four floor, 6 Industrial Zone, Tian Liang Road, Guangdong, Shenzhen, Nanshan District Patentee after: Shenzhen Leadshine Intelligent Control Co., Ltd. Address before: Shenzhen Nanshan District City, Guangdong province 518054 Dengliang Road No. 25 Tian Industrial Zone Nanyou two floor Patentee before: Shenzhen Leadshine Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |
|
| CX01 | Expiry of patent term |