CN219960272U - Brush holder device for dc motor - Google Patents
Brush holder device for dc motor Download PDFInfo
- Publication number
- CN219960272U CN219960272U CN202320994555.7U CN202320994555U CN219960272U CN 219960272 U CN219960272 U CN 219960272U CN 202320994555 U CN202320994555 U CN 202320994555U CN 219960272 U CN219960272 U CN 219960272U
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- CN
- China
- Prior art keywords
- circuit board
- brush holder
- secondary circuit
- threaded rod
- sealing ring
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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.)
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Links
- 238000007789 sealing Methods 0.000 claims description 38
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 230000005284 excitation Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
A brush holder device of a direct current motor comprises a brush holder shell, wherein a connector is communicated with the brush holder shell, a main circuit board and a secondary circuit board are installed in the brush holder shell, a wiring row is installed on one side of the main circuit board, a secondary circuit board socket is arranged on the wiring row, the secondary circuit board is clamped on the secondary circuit board socket, and a limiting mechanism matched with the secondary circuit board is further installed on the secondary circuit board socket. When the auxiliary circuit board is used, the auxiliary circuit board is inserted into the auxiliary circuit board socket, the rotary handle drives the threaded rod to rotate, the threaded rod moves backwards, the threaded rod drives the limiting plate to move backwards, the limiting plate limits and fixes the auxiliary circuit board, looseness of the auxiliary circuit board due to vibration generated when the direct current motor works is avoided, and the installation stability of the auxiliary circuit board is improved.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a brush holder device of a direct-current motor.
Background
The dc motor converts dc power into mechanical power, and is widely used in electric traction due to its excellent speed regulation performance. The direct current motor is divided into 3 types of permanent magnet, separate excitation and self excitation according to an excitation mode, wherein the self excitation is divided into 3 types of shunt excitation, series excitation and compound excitation; the carbon brush support, i.e. brush holder, of the permanent magnet direct current motor is an important part of the motor, especially the permanent magnet direct current motor brush holder used in industrial PTU (power transmission element), besides the assembly of carbon brush and other components, a plurality of electronic components, sensing elements and the like are required to be assembled. Therefore, the brush frame has complex structure, more components and parts, more outgoing lines and high sealing performance requirement.
The utility model provides a novel permanent magnet direct current motor brush yoke of chinese patent application No. (CN 211239541U), this application file is through being connected vice circuit board and main circuit board perpendicularly, and the space occupation that significantly reduces, but vice circuit board lacks the mechanism that carries out spacing to vice circuit board after being connected with vice circuit board socket, because permanent magnet direct current motor can shake at the during operation, leads to vice circuit board to take place not hard up easily.
Accordingly, the present utility model provides a brush holder device for a dc motor to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the brush holder device for the direct-current motor, which can effectively avoid loosening of the secondary circuit board caused by vibration generated when the direct-current motor works, and further improve the installation stability of the secondary circuit board.
The technical problems to be solved by the utility model are realized by the following technical proposal. The utility model relates to a brush holder device of a direct current motor, which comprises a brush holder shell, wherein a connector is communicated with the brush holder shell, a main circuit board and a secondary circuit board are arranged in the brush holder shell, a wiring row is arranged on one side of the main circuit board, a secondary circuit board socket is arranged on the wiring row, the secondary circuit board is clamped on the secondary circuit board socket, and a limiting mechanism matched with the secondary circuit board is also arranged on the secondary circuit board socket.
The technical problem to be solved by the utility model can be further solved by the following technical scheme that for the DC motor brush holder device, the limiting mechanism comprises a fixed block and a threaded rod, wherein the fixed block is fixedly arranged on the socket of the secondary circuit board, the threaded rod is in threaded connection with the fixed block, and the threaded rod is provided with a limiting plate for limiting and fixing the secondary circuit board through a bearing.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, wherein for the brush holder device of the direct current motor, a connecting plate is arranged at one end of a threaded rod, and a handle is arranged at the other end of the threaded rod.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and the connector is provided with a heat dissipation hole and a plurality of connecting terminals for the brush frame device of the direct-current motor.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and for the brush frame device of the direct-current motor, the connector and the brush frame shell are of an integrated structure.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and for the brush frame device of the direct-current motor, a sealing groove is further formed in the brush frame shell, and a sealing ring is arranged on the sealing groove.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, for the direct-current motor brush holder device, the sealing ring is provided with a sealing ring, the sealing groove is provided with a clamping groove matched with the sealing ring, and the sealing ring is installed on the sealing groove in a clamping fit manner through the clamping of the sealing ring and the clamping groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. when the brush holder is used, the connector and the brush holder shell are injection molded into an integrated structure, and the connecting terminals are matched with the radiating hole structure, so that the disorder leads are saved, the internal and external air pressures of the brush holder shell are kept consistent, the normal operation of components is prevented from being influenced by the air pressure, and the sealing ring is provided with the sealing ring and matched with the clamping groove structure, so that the tightness of the brush holder shell is further improved;
2. when the auxiliary circuit board is used, the auxiliary circuit board is inserted into the auxiliary circuit board socket, the rotary handle drives the threaded rod to rotate, the threaded rod moves backwards, the threaded rod drives the limiting plate to move backwards, the limiting plate limits and fixes the auxiliary circuit board, looseness of the auxiliary circuit board due to vibration generated when the direct current motor works is avoided, and the installation stability of the auxiliary circuit board is improved.
Drawings
FIG. 1 is a schematic diagram of a structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;
FIG. 3 is a schematic structural view of a seal ring according to the present utility model;
in the figure: 1. a brush holder housing; 2. a connector; 201. a connection terminal; 202. a heat radiation hole; 3. a main circuit board; 4. a wiring row; 5. a secondary circuit board receptacle; 6. a secondary circuit board; 7. a seal ring; 701. a seal ring; 8. sealing the groove; 9. a limiting mechanism; 901. a fixed block; 902. a threaded rod; 903. a connecting plate; 904. a handle; 905. a bearing; 906. and a limiting plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, a brush holder device for a dc motor includes a brush holder housing 1, a connector 2 is connected to the brush holder housing 1, and a heat dissipation hole 202 and a plurality of connection terminals 201 are provided on the connector 2, so as to effectively keep the internal and external air pressures of the brush holder housing 1 consistent while omitting messy leads, and avoid the influence of the air pressure on the normal operation of components, specifically, the connector 2 and the brush holder housing 1 are in an integrated structure, and are firm and reliable;
a main circuit board 3 and a secondary circuit board 6 are arranged in the brush holder shell 1, a wiring row 4 is arranged on one side of the main circuit board 3, a secondary circuit board socket 5 is arranged on the wiring row 4, the secondary circuit board 6 is clamped on the secondary circuit board socket 5, and a limiting mechanism 9 matched with the secondary circuit board 6 is arranged on the secondary circuit board socket 5 and used for limiting and fixing the secondary circuit board 6, so that the installation stability of the secondary circuit board 6 is improved;
specifically, the limiting mechanism 9 includes a fixing block 901 and a threaded rod 902, the fixing block 901 is fixedly mounted on the secondary circuit board socket 5, the threaded rod 902 is in threaded connection with the fixing block 901, and a limiting plate 906 for limiting and fixing the secondary circuit board 6 is mounted on the threaded rod 902 through a bearing 905. The fixing block 901 is used for realizing the installation and the support of the threaded rod 902, and is convenient for rotating the threaded rod 902 to drive the limiting plate 906 to fix, and the limiting plate 906 is attached to the secondary circuit board 6 to realize the limiting fixation of the secondary circuit board;
in order to ensure the reliability of the installation of the threaded rod 902 and to facilitate the rotation operation of the threaded rod 902, a connection plate 903 is installed at one end of the threaded rod 902, and a handle 904 is installed at the other end of the threaded rod 902.
In order to ensure the tightness of the brush holder housing 1, the brush holder housing 1 is further provided with a sealing groove 8, a sealing ring 7 is installed on the sealing groove 8, a sealing ring 701 is arranged on the sealing ring 7, a clamping groove matched with the sealing ring 701 is arranged on the sealing groove 8, and the sealing ring 7 is installed on the sealing groove 8 in a clamping fit manner through the sealing ring 701 and the clamping groove.
The working principle of the utility model is as follows:
when the brush holder is used, the connector 2 and the brush holder shell 1 are injection molded into an integrated structure, and the connecting terminal 201 and the radiating hole 202 are matched for use, so that disordered leads are omitted, the internal and external air pressure of the brush holder shell 1 is kept consistent, and the normal operation of components is prevented from being influenced by the air pressure;
the auxiliary circuit board 6 is inserted on the auxiliary circuit board socket 5, the rotary handle 904 can drive the threaded rod 902 to rotate, the threaded rod 902 moves backwards, the threaded rod 902 drives the limiting plate 906 to move backwards, the limiting plate 906 limits and fixes the auxiliary circuit board 6, looseness of the auxiliary circuit board 6 due to vibration generated when the direct current motor works is avoided, and the installation stability of the auxiliary circuit board 6 is improved;
meanwhile, the sealing ring 701 is arranged on the sealing ring 7, and then the sealing ring is matched with the clamping groove structure arranged on the sealing groove 8, so that the tightness of the brush holder shell 1 is further improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. A dc motor brush holder assembly, characterized by: the electric brush comprises a brush holder shell, wherein a connector is communicated with the brush holder shell, a main circuit board and a secondary circuit board are installed in the brush holder shell, a wiring row is installed on one side of the main circuit board, a secondary circuit board socket is arranged on the wiring row, the secondary circuit board is clamped on the secondary circuit board socket, and a limiting mechanism matched with the secondary circuit board is further installed on the secondary circuit board socket.
2. A dc motor brush holder assembly according to claim 1, wherein: the limiting mechanism comprises a fixed block and a threaded rod, wherein the fixed block is fixedly arranged on the secondary circuit board socket, the threaded rod is in threaded connection with the fixed block, and a limiting plate for limiting and fixing the secondary circuit board is arranged on the threaded rod through a bearing.
3. A dc motor brush holder assembly as set forth in claim 2, wherein: a connecting plate is arranged at one end of the threaded rod, and a handle is arranged at the other end of the threaded rod.
4. A dc motor brush holder assembly according to claim 1, wherein: the connector is provided with a heat dissipation hole and a plurality of wiring terminals.
5. A brush holder assembly for a dc motor according to claim 1 or 4, wherein: the connector and the brush holder shell are of an integrated structure.
6. A dc motor brush holder assembly according to claim 1, wherein: the brush holder shell is also provided with a sealing groove, and a sealing ring is arranged on the sealing groove.
7. A dc motor brush holder assembly as set forth in claim 6, wherein: the sealing ring is provided with a sealing ring, the sealing groove is provided with a clamping groove matched with the sealing ring, and the sealing ring is installed on the sealing groove in a clamping fit manner through the sealing ring and the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320994555.7U CN219960272U (en) | 2023-04-27 | 2023-04-27 | Brush holder device for dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320994555.7U CN219960272U (en) | 2023-04-27 | 2023-04-27 | Brush holder device for dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219960272U true CN219960272U (en) | 2023-11-03 |
Family
ID=88552376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320994555.7U Active CN219960272U (en) | 2023-04-27 | 2023-04-27 | Brush holder device for dc motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219960272U (en) |
-
2023
- 2023-04-27 CN CN202320994555.7U patent/CN219960272U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |