CN216721061U - Motor rear end cover - Google Patents
Motor rear end cover Download PDFInfo
- Publication number
- CN216721061U CN216721061U CN202122658963.9U CN202122658963U CN216721061U CN 216721061 U CN216721061 U CN 216721061U CN 202122658963 U CN202122658963 U CN 202122658963U CN 216721061 U CN216721061 U CN 216721061U
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- China
- Prior art keywords
- motor
- rear end
- end cover
- plug
- cylindrical part
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Abstract
The utility model discloses a rear end cover of a motor, which comprises a cylindrical part connected with the motor and a plug accommodating part used for accommodating a plug, wherein the cylindrical part is provided with a bottom plate, the plug accommodating part is arranged on the bottom plate, and the inner cavity of the plug accommodating part is communicated with the inner cavity of the cylindrical part. According to the utility model, through the optimization of the structure and the optimization of the structure of the internal parts of the motor, under the condition that the functions and the appearance are not changed, the use space of the parts is compressed, the screw fixing position is increased, and the rear end cover is fixed on the motor by using the screw, so that the strength of the rear end cover can be increased, the Hall function of the motor can be increased, and the space volume of the rear end cover is reduced.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a rear end cover of a motor.
Background
Referring to fig. 1 and 2, a small motor 1 with a conventional structure generally uses a snap-in structure to fix a rear end cover 2, and specifically, a square slot 4 is left on the rear end cover 2, so as to be conveniently and fixedly connected with a bump 3 on a housing of the small motor 1. The rear end cover 2 with the structure has thin wall, low tensile strength and easy damage, and the salient point 3 is difficult to punch on the shell of the small motor 1 with high cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides an improved motor rear end cover aiming at the technical problems of the rear end cover on the existing small motor, which is characterized in that the structure of internal parts of the motor is optimized through structural optimization, under the condition that the function and the appearance are not changed, the using space of the parts is compressed, the fixing position of a screw is increased, and the rear end cover is fixed on the motor through the screw, so that the strength of the rear end cover can be increased, the Hall function of the motor can be increased, and the space volume of the rear end cover is reduced.
In order to achieve the above object, the rear end cover of a motor according to the present invention includes a cylindrical portion connected to a motor and a plug receiving portion for receiving a plug, the cylindrical portion has a bottom plate, the plug receiving portion is disposed on the bottom plate, and an inner cavity of the plug receiving portion communicates with an inner cavity of the cylindrical portion, and is characterized in that three screw countersunk holes are disposed on a surface of the bottom plate on a side of the inner cavity of the cylindrical portion, and after the cylindrical portion is fitted on a side of the motor having a motor brush, screws are inserted through the three screw countersunk holes to connect to a motor brush holder on the motor.
In a preferred embodiment of the present invention, a plurality of ribs are provided between the outside of the plug-receiving portion and the outside of the cylindrical portion.
In a preferred embodiment of the utility model, a hall function module is added in a space connected by a screw between the motor rear end cover and the motor brush support.
In a preferred embodiment of the utility model, the hall function module is located at a side of the motor.
By adopting the technical scheme, the structure of the internal parts of the motor is optimized and optimized, the using space of the parts is compressed under the condition that the functions and the appearance are not changed, the screw fixing position is increased, and the rear end cover is fixed on the motor by screws, so that the strength of the rear end cover can be increased, the Hall function of the motor can be increased, and the space volume of the rear end cover is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a rear end cover of a conventional motor.
Fig. 2 is a schematic view of an assembly between a rear end cover of a conventional motor and the motor.
Fig. 3 is a schematic structural diagram of the rear end cover of the motor of the present invention.
Fig. 4 is one of the assembling diagrams of the motor rear end cover and the motor of the present invention.
Fig. 5 is a second schematic view of the assembly between the rear end cover and the motor according to the present invention.
Detailed Description
The utility model is further described below in conjunction with the appended drawings and detailed description.
Referring to fig. 3 to 5, a rear end cap of a motor is shown, which includes a cylindrical portion 20 connected to a motor 10 and a plug receiving portion 30 for receiving a plug.
The cylindrical part 20 has a bottom plate 21, the plug accommodating part 30 is disposed on the bottom plate 21 and extends outward, the inner cavity of the plug accommodating part 30 is communicated with the inner cavity of the cylindrical part 20, and a plurality of reinforcing ribs 40, for example, 3 reinforcing ribs 40, are disposed between the outer part of the plug accommodating part 30 and the outer part of the cylindrical part 20 to increase the connection strength between the cylindrical part 20 and the plug accommodating part 30.
The motor rear end cover is optimized in internal structure, and particularly, three screw counterbores 22 are arranged on the surface of the side, located in the inner cavity of the cylindrical part 20, of the bottom plate 21, so that the motor rear end cover is convenient to be fixedly connected with the motor brush support 11, and after the cylindrical part 20 is sleeved on the side, provided with the motor brushes, of the motor 10, screws penetrate through the three screw counterbores 22 to be connected with the motor brush support 11 on the motor 10. Therefore, the outer diameter of the cylindrical part 20 of the motor rear end cover can be reduced, the outer diameter of the cylindrical part 20 is reduced from original phi 32mm to phi 29.7mm, and the volume of the motor rear end cover is reduced.
The cylindrical part 20 of the motor rear end cover eliminates the thin wall at the edge of the original rear end cover, reduces the outer diameter of the cylindrical part 20, and ensures that the motor rear end cover is convenient to inject and produce. In addition, three screws are adopted for fixing, so that the strength is high, and the stability is reliable.
According to the utility model, the Hall function module 12 is additionally arranged in the space between the motor rear end cover and the motor brush support 11 through the screw, and the Hall function module 12 is positioned at the side edge of the motor 10, so that the influence of the axial clearance of the motor on the Hall function module 12 is avoided, and the stability of the Hall function module 12 is improved.
Claims (4)
1. A motor rear end cover comprises a cylindrical part connected with a motor and a plug accommodating part used for accommodating a plug, wherein the cylindrical part is provided with a bottom plate, the plug accommodating part is arranged on the bottom plate, and an inner cavity of the plug accommodating part is communicated with an inner cavity of the cylindrical part.
2. A motor rear cover according to claim 1, wherein a plurality of ribs are provided between an outside of said plug accommodating portion and an outside of said cylindrical portion.
3. The motor rear end cover according to claim 1, wherein a hall function module is added to a space between the motor rear end cover and the motor brush holder through a screw connection.
4. The motor rear end cover of claim 3, wherein the Hall function module is located on a side of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658963.9U CN216721061U (en) | 2021-11-02 | 2021-11-02 | Motor rear end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658963.9U CN216721061U (en) | 2021-11-02 | 2021-11-02 | Motor rear end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216721061U true CN216721061U (en) | 2022-06-10 |
Family
ID=81876227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122658963.9U Active CN216721061U (en) | 2021-11-02 | 2021-11-02 | Motor rear end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216721061U (en) |
-
2021
- 2021-11-02 CN CN202122658963.9U patent/CN216721061U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |