CN215071863U - Motor with multiple rotational speeds - Google Patents
Motor with multiple rotational speeds Download PDFInfo
- Publication number
- CN215071863U CN215071863U CN202120727542.4U CN202120727542U CN215071863U CN 215071863 U CN215071863 U CN 215071863U CN 202120727542 U CN202120727542 U CN 202120727542U CN 215071863 U CN215071863 U CN 215071863U
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- motor
- disc
- end cover
- groove
- joint
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Abstract
The utility model relates to the technical field of electric machine, in particular to motor with multiple rotational speed, including motor casing, end cover, stator, rotor and pivot, the motor casing tip is equipped with the draw-in groove that supplies the end cover joint, it has the brush yoke to go back the joint in the draw-in groove, brush yoke up end and end cover inner wall form the installation cavity, be equipped with resistance skeleton in the installation cavity, resistance skeleton and motor casing tip's draw-in groove joint, resistance skeleton includes the last disc that offsets with the end cover inner wall, the spliced pole of upper and lower disc is connected with the lower disc that offsets with the brush yoke, go up the lower terminal surface of disc, the week side of spliced pole and the upper end face of lower disc form the annular groove that can hold the multiunit coil, the beneficial effects of the utility model are that: the mode of changing the rotating speed of the motor is simplified and the condition of heating inside the motor is improved without externally connecting a resistor and changing the size and the shape of the motor.
Description
Technical Field
The utility model relates to the technical field of motors, concretely relates to motor with multiple rotational speed.
Background
The motor is widely applied to the automobile and machinery industry, only one layer of coil is wound on an iron core column of the existing motor, when a plurality of speeds are required to be output, the rotating speed of the motor is usually adjusted through an external resistor, the external resistor generates heat quickly, the heat productivity is large, and plastic parts inside the motor are easily melted and deformed to cause the failure of the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a motor with multiple rotational speed, do not change motor appearance and size, guarantee the motor performance.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a motor with multiple rotational speed, includes motor casing, joint end cover, the stator of setting in the motor casing, the cover of motor casing tip locate the rotor in the stator and wear to locate the pivot on the rotor, its characterized in that: the motor casing tip is equipped with the draw-in groove that supplies the end cover joint, it has the brush yoke to go back the joint in the draw-in groove, the brush yoke up end forms the installation cavity with the end cover inner wall, be equipped with resistance skeleton in the installation cavity, resistance skeleton and the draw-in groove joint of motor casing tip, resistance skeleton includes the last disc that offsets with the end cover inner wall, the lower disc that offsets with the brush yoke and the spliced pole of connecting upper and lower disc, the annular groove that can hold the multiunit coil is formed to the up end of the lower terminal surface of last disc, the week side of spliced pole and the up end of lower disc.
The utility model has the characteristics as above: the resistance that changes the motor through the resistance skeleton that sets up the windable enameled wire in the motor casing to realize motor speed's regulation, because the spliced pole of resistance skeleton can supply the winding of multiunit coil, the event can obtain the motor that has multiple rotational speed, and built-in resistance skeleton can not increase the size of motor, need not external resistance, simplifies the mode that motor rotational speed changed, improves the inside condition that generates heat of motor.
The utility model discloses further setting is: the one end of rotor towards the brush yoke is equipped with the fan blade dish, the fan blade dish cover is established in the pivot, the fan blade dish includes the mounting disc that offsets with the rotor terminal surface and a plurality of fan blades that are the circumference equipartition in the mounting disc up end.
The utility model has the characteristics as above: the situation that the motor during operation can generate heat in the inside can appear, can in time dispel the heat at motor internally mounted fan blade dish, and fan blade dish cover is established in the pivot, and the pivot rotates and can drive the fan blade dish and rotate, dispels the heat in real time, improves energy utilization.
The utility model discloses further setting is: and a plurality of vent holes are formed in one side, close to the end cover, of the motor shell.
The utility model has the characteristics as above: the ventilation hole is matched with the fan blade disc, and the heat dissipation performance of the motor is enhanced.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a resistor frame according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a fan blade according to an embodiment of the present invention.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
As shown in fig. 1-4, a motor with multiple rotation speeds includes a motor housing 1, an end cover 2 fastened to an end of the motor housing 1, a stator 3 disposed in the motor housing 1, a rotor 4 sleeved in the stator 3, and a rotating shaft 5 penetrating the rotor 4, wherein a clamping groove 11 for fastening the end cover 2 is disposed at an end of the motor housing 1, a brush holder 6 is further fastened in the clamping groove 11, an installation cavity is formed by an upper end surface of the brush holder 6 and an inner wall of the end cover 2, a resistor framework 7 is disposed in the installation cavity, the resistor framework 7 is fastened to the clamping groove 11 at the end of the motor housing 1, the resistor framework 7 includes an upper disc 71 abutting against the inner wall of the end cover 2, a lower disc 72 abutting against the brush holder 6, and a connecting post 73 connecting the upper disc 71 and the lower disc 72, and an annular groove 74 capable of accommodating multiple groups of coils is formed by the lower end surface of the upper disc 71, the circumferential side of the connecting post 73, and the upper end surface of the lower disc 72.
Claims (3)
1. The utility model provides a motor with multiple rotational speed, includes motor casing, joint end cover, the stator of setting in the motor casing, the rotor of cover in locating the stator and wear to locate the pivot in the rotor of motor casing tip, its characterized in that: the motor casing tip is equipped with the draw-in groove that supplies the end cover joint, it has the brush yoke to go back the joint in the draw-in groove, the brush yoke up end forms the installation cavity with the end cover inner wall, be equipped with resistance skeleton in the installation cavity, resistance skeleton and the draw-in groove joint of motor casing tip, resistance skeleton includes the last disc that offsets with the end cover inner wall, the lower disc that offsets with the brush yoke and the spliced pole of connecting upper and lower disc, the annular groove that can hold the multiunit coil is formed to the up end of the lower terminal surface of last disc, the week side of spliced pole and the up end of lower disc.
2. A multiple speed electric motor as claimed in claim 1, wherein: the one end of rotor towards the brush yoke is equipped with the fan blade dish, the fan blade dish cover is established in the pivot, the fan blade dish includes the mounting disc that offsets with the rotor terminal surface and a plurality of fan blades that are the circumference equipartition in the mounting disc up end.
3. A multiple speed electric motor as claimed in claim 1, wherein: and a plurality of vent holes are formed in one side, close to the end cover, of the motor shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120727542.4U CN215071863U (en) | 2021-04-09 | 2021-04-09 | Motor with multiple rotational speeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120727542.4U CN215071863U (en) | 2021-04-09 | 2021-04-09 | Motor with multiple rotational speeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215071863U true CN215071863U (en) | 2021-12-07 |
Family
ID=79148613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120727542.4U Active CN215071863U (en) | 2021-04-09 | 2021-04-09 | Motor with multiple rotational speeds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215071863U (en) |
-
2021
- 2021-04-09 CN CN202120727542.4U patent/CN215071863U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |