Gear shifting motor

Abstract

The utility model provides a gear shifting motor. The gear shifting motor comprises a shell, a brush carrier, a rotor assembly, a conductive assembly, a sliding contact structure and an electronic assembly, the brush carrier is arranged on the shell; the conductive assembly comprises a first conductive sheet and a second conductive sheet, and the first conductive sheet and the second conductive sheet are both arranged on the brush holder; the rotor assembly is arranged in the shell; the sliding contact structure and the electronic assembly are arranged on the two opposite sides of the brush holder respectively. Compared with the prior art, the gear shifting motor enables the energy storage element and the carbon brush assembly to be respectively placed on two sides of the brush holder through arranging the conducting strip on the brush holder, can better utilize the space of the brush holder, can arrange a larger energy storage element under the condition that the arrangement of the carbon brush assembly is not influenced, simplifies the wiring mode, and improves the wiring efficiency. And wires on the brush carrier are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a gear-shifting motor. Background Art

[0002] The electric shift device for automobiles is based on the main structure of the manual transmission. By adding a microcomputer-controlled electric device, it replaces the original manual operation of clutch separation and engagement and transmission gear selection and shifting, thus automating the entire gear shifting process. The electric shift device for automobiles usually requires the use of a motor.

[0003] At present, multi-pole motors need to accommodate more carbon brushes. For example, a four-pole motor needs four carbon brushes. To meet EMI requirements, there needs to be enough space on the brush holder to place larger inductors, capacitors and other energy storage components. In addition, due to the high power of the motor, the inductor type energy storage components also need to use larger enameled wires, resulting in the energy storage components taking up more space. However, due to the compact internal space of the motor and the small size of the brush holder, it is difficult to arrange the carbon brushes and energy storage components on the brush holder at the same time. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and provide a gear-shifting motor.

[0005] An embodiment of the utility model provides a shifting motor, comprising: a housing, a brush holder, a rotor assembly, a conductive assembly, a sliding contact structure and an electronic assembly;

[0006] The brush holder is arranged on the housing;

[0007] The conductive component comprises a first conductive sheet and a second conductive sheet, and the first conductive sheet and the second conductive sheet are both arranged on the brush holder;

[0008] The rotor assembly is disposed in the housing;

[0009] The sliding contact structure and the electronic component are respectively arranged on opposite sides of the brush holder, wherein the sliding contact structure comprises a plurality of first carbon brush assemblies and a plurality of second carbon brush assemblies, the first carbon brush assemblies and the second carbon brush assemblies are both arranged on the brush holder and arranged around the rotor assembly, the first carbon brush assemblies are respectively electrically connected to the first conductive sheet and the rotor assembly, and the second carbon brush assemblies are respectively electrically connected to the second conductive sheet and the rotor assembly;

[0010] The electronic component includes at least one first energy storage element and at least one second energy storage element, the first energy storage element is electrically connected to the first conductive sheet, and the second energy storage element is electrically connected to the second conductive sheet.

[0011] In some optional embodiments, a plurality of first welding pads are provided on the first conductive sheet and the second conductive sheet, the legs of the first carbon brush assembly and the first energy storage element are correspondingly welded and connected to the plurality of first welding pads of the first conductive sheet, and the legs of the second carbon brush assembly and the second energy storage element are correspondingly welded and connected to the plurality of first welding pads of the second conductive sheet.

[0012] In some optional embodiments, the first conductive sheet and the second conductive sheet are arranged in the brush holder and are integrally formed with the brush holder, a plurality of first through slots and a plurality of second through slots are arranged on the brush holder, the first through slots and the second through slots pass through opposite sides of the brush holder, the first conductive sheet extends into the first through slot, and the second conductive sheet extends into the second through slot;

[0013] The first carbon brush assembly and the first energy storage element extend into the first through slots correspondingly, and then are electrically connected to the first conductive sheet;

[0014] The second carbon brush assembly and the second energy storage element extend into the second through slots correspondingly, and then are electrically connected to the second conductive sheet.

[0015] In some optional embodiments, a first via hole is provided in one of the first through-slots and one of the second through-slots, a leg of the first energy storage element passes through the first through-hole of the first through-slot and is then electrically connected to a side of the first conductive sheet away from the first energy storage element, and a leg of the second energy storage element passes through the first through-hole of the second through-slot and is then electrically connected to a side of the second conductive sheet away from the second energy storage element.

[0016] In some optional embodiments, the conductive component further includes a first power connection member and a second power connection member, the first energy storage element is electrically connected to the first power connection member and the first conductive sheet respectively, and the second energy storage element is electrically connected to the second power connection member and the second conductive sheet respectively.

[0017] In some optional embodiments, the first power connector and the second power connector are arranged in the brush holder and are integrally formed with the brush holder, the brush holder is provided with two third through slots, the third through slots run through opposite sides of the brush holder, and the first power connector and the second power connector extend into the third through slots respectively;

[0018] The first energy storage element and the second energy storage element extend into the two third through slots respectively, and then are electrically connected to the first conductive sheet and the second conductive sheet respectively.

[0019] In some optional embodiments, a second via hole is provided in the third through slot, and the leg of the first energy storage element passes through the second via hole of the third through slot and is then electrically connected to a side of the first conductive sheet away from the first energy storage element, and the leg of the second energy storage element passes through the second via hole of the third through slot and is then electrically connected to a side of the second conductive sheet away from the second energy storage element.

[0020] In some optional embodiments, second pads are provided on the first power connector and the second power connector, the second pad of the first power connector is welded to the leg of the first energy storage element, and the second pad of the second power connector is welded to the leg of the second energy storage element.

[0021] In some optional embodiments, the first energy storage element and the second energy storage element are inductors, a plurality of fixing columns are provided on the brush holder, and the inductors are arranged around the fixing columns.

[0022] In some optional embodiments, the first carbon brush assembly and the second carbon brush assembly both include a carbon brush, a mounting seat and a compression spring, the mounting seat is arranged on the brush holder, a guide channel is arranged in the mounting seat, limiting grooves are arranged on both sides of the guide channel, the compression spring is arranged in the guide channel and partially extends into the limiting groove, the carbon brush is movably arranged in the guide channel and connected to the compression spring.

[0023] Compared with the prior art, the shift motor of the utility model arranges a conductive sheet on the brush holder so that the energy storage element and the carbon brush assembly can be placed on both sides of the brush holder respectively, which can make better use of the space of the brush holder, and can arrange a larger energy storage element without affecting the arrangement of the carbon brush assembly, and simplifies the wiring method and reduces the wires on the brush holder. Of course, the shift motor of the utility model can also be used in other fields, not limited to the shift structure of the car.

[0024] In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a shift motor according to an embodiment of the utility model;

[0026] Figure 2 An exploded view of a shift motor according to an embodiment of the utility model;

[0027] Figure 3 This is a schematic structural diagram of a brush holder, a conductive component, a sliding contact structure and an electronic component according to an embodiment of the utility model;

[0028] Figure 4A schematic diagram of the structure of a conductive component, a sliding contact structure and an electronic component according to an embodiment of the utility model;

[0029] Figure 5 This is a structural schematic diagram of a brush holder according to an embodiment of the utility model;

[0030] Figure 6 This is an exploded view of a first carbon brush assembly according to an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 10. Shell; 20. Brush holder; 21. First through slot; 22. Second through slot; 23. First through hole; 24. Third through slot; 25. Second through hole; 26. Fixed column; 30. Rotor assembly; 40. Conductive assembly; 41. First conductive sheet; 42. Second conductive sheet; 43. First welding pad; 44. First power connection member; 45. Second power connection member; 46. Second welding pad; 50. Sliding contact structure; 51. First carbon brush assembly; 52. Second carbon brush assembly; 53. Carbon brush; 54. Mounting seat; 55. Compression spring; 56. Guide channel; 57. Limiting groove; 60. Electronic assembly; 61. First energy storage element; 62. Second energy storage element. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the description of the utility model, the description with reference to the terms "one embodiment", "some optional implementations" or "some optional embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] See also Figures 1 to 3 An embodiment of the utility model provides a shift motor, including: a housing 10, a brush holder 20, a rotor assembly 30, a conductive assembly 40, a sliding contact structure 50 and an electronic assembly 60.

[0038] See also Figure 4 The brush holder 20 is arranged on the housing 10 ; the conductive component 40 includes a first conductive sheet 41 and a second conductive sheet 42 , and the first conductive sheet 41 and the second conductive sheet 42 are both arranged on the brush holder 20 ; and the rotor assembly 30 is arranged in the housing 10 .

[0039] The sliding contact structure 50 and the electronic component 60 are respectively arranged on opposite sides of the brush holder 20, wherein the sliding contact structure 50 includes a plurality of first carbon brush 53 components 51 and a plurality of second carbon brush 53 components 52, the first carbon brush 53 components 51 and the second carbon brush 53 components 52 are both arranged on the brush holder 20 and arranged around the rotor assembly 30, the first carbon brush 53 components 51 are respectively electrically connected to the first conductive sheet 41 and the rotor assembly 30, and the second carbon brush 53 components 52 are respectively electrically connected to the second conductive sheet 42 and the rotor assembly 30; the electronic component 60 includes at least one first energy storage element 61 and at least one second energy storage element 62, the first energy storage element 61 is electrically connected to the first conductive sheet 41, the second energy storage element 62 is electrically connected to the second conductive sheet 42, the first energy storage element 61, the first conductive sheet 41, the first carbon brush 53 component 51, the rotor assembly 30, the second carbon brush 53 component 52, the second conductive sheet 42 and the second energy storage element 62 are electrically connected in sequence.

[0040] Through the design of the first conductive sheet 41 and the second conductive sheet 42, the conductive component 40, the sliding contact structure 50 and the electronic component 60 are electrically connected, and the carbon brush 53 component of the sliding contact structure 50 and the energy storage element of the electronic component 60 can be arranged on both sides of the brush holder 20 respectively. Since the carbon brush 53 component and the energy storage element will not interfere with each other, the space of the brush holder 20 can be better utilized, and a larger energy storage element can be arranged without affecting the arrangement of the carbon brush 53 component. In addition, the design of the first conductive sheet 41 and the second conductive sheet 42 simplifies the wiring method and reduces the wires on the brush holder 20.

[0041] In some optional embodiments, a plurality of first welding pads 43 are provided on the first conductive sheet 41 and the second conductive sheet 42, and the brush braids of the carbon brush 53 of the first carbon brush 53 assembly 51 and the legs of the first energy storage element 61 are welded and connected to the plurality of first welding pads 43 of the first conductive sheet 41, thereby facilitating stable electrical connection between the first conductive sheet 41 and the first carbon brush 53 assembly 51 and the first energy storage element 61, and the brush braids of the carbon brush 53 of the second carbon brush 53 assembly 52 and the legs of the second energy storage element 62 are welded and connected to the plurality of first welding pads 43 of the second conductive sheet 42, thereby facilitating stable electrical connection between the second conductive sheet 42 and the second carbon brush 53 assembly 52 and the second energy storage element 62.

[0042] In order to facilitate the installation of the first conductive sheet 41 and the second conductive sheet 42, in some optional embodiments, the first conductive sheet 41 and the second conductive sheet 42 are disposed in the brush holder 20 and are integrally formed with the brush holder 20. In this embodiment, the brush holder 20 is made of plastic, and the first conductive sheet 41 and the second conductive sheet 42 are enclosed by the brush holder 20 inside the brush holder 20. This helps reduce the exposure of the conductive sheet and simplifies the overall structure.

[0043] See also Figure 5 The brush holder 20 is provided with a plurality of first through slots 21 and a plurality of second through slots 22 . The first through slots 21 and the second through slots 22 pass through opposite sides of the brush holder 20 . The first conductive sheet 41 extends into the first through slot 21 , and the second conductive sheet 42 extends into the second through slot 22 .

[0044] The brush braids of the carbon brush 53 of the first carbon brush 53 assembly 51 and the legs of the first energy storage element 61 extend into the plurality of first through slots 21 correspondingly, and then are electrically connected to the first conductive sheet 41 .

[0045] The brush braids of the carbon brush 53 of the second carbon brush 53 assembly 52 and the legs of the second energy storage element 62 extend into the plurality of second through slots 22 correspondingly, and then are electrically connected to the second conductive sheet 42 .

[0046] The design of the first through slot 21 and the second through slot 22 allows the energy storage element and the carbon brush 53 components on both sides of the brush holder 20 to be conveniently electrically connected to the conductive sheet. In this embodiment, the first pad 43 is arranged in the first through slot 21 and the second through slot 22 .

[0047] In some optional embodiments, a first via hole 23 is provided in one of the first through slots 21 and one of the second through slots 22. The leg of the first energy storage element 61 passes through the first through hole 23 of the first through slot 21 and is then electrically connected to a side of the first conductive sheet 41 away from the first energy storage element 61. The leg of the second energy storage element 62 passes through the first through hole 23 of the second through slot 22 and is then electrically connected to a side of the second conductive sheet 42 away from the second energy storage element 62. The first via hole 23 facilitates the legs of the first energy storage element 61 and the legs of the second energy storage element 62 to pass through the first through slot 21. The legs of the first energy storage element 61 are welded to the opposite side of the first pad 43 of the first conductive sheet 41, so that the position of the first energy storage element 61 is more stable. The legs of the second energy storage element 62 are welded to the opposite side of the first pad 43 of the second conductive sheet 42, so that the position of the second energy storage element 62 is more stable.

[0048] In some optional embodiments, the conductive component 40 further includes a first power connector 44 and a second power connector 45, the first energy storage element 61 is electrically connected to the first power connector 44 and the first conductive sheet 41, respectively, and the second energy storage element 62 is electrically connected to the second power connector 45 and the second conductive sheet 42, respectively. The first power connector 44 and the second power connector 45 are respectively connected to the positive and negative electrodes of the power source. In this embodiment, the first power connector 44, the first energy storage element 61, the first conductive sheet 41, the first carbon brush 53 assembly 51, the rotor assembly 30, the second carbon brush 53 assembly 52, the second conductive sheet 42, the second energy storage element 62 and the second power connector 45 are electrically connected in sequence.

[0049] In some optional embodiments, the first power connector 44 and the second power connector 45 are disposed in the brush holder 20 and are integrally formed with the brush holder 20. In this embodiment, the brush holder 20 is made of plastic, and the first power connector 44 and the second power connector 45 are enclosed by the brush holder 20 inside the brush holder 20, thereby reducing exposure of the power connectors and simplifying the overall structure.

[0050] Two third through slots 24 are provided on the brush holder 20, and the third through slots 24 pass through the opposite sides of the brush holder 20, and the first power connecting member 44 and the second power connecting member 45 extend into the third through slots 24 respectively; the first energy storage element 61 and the second energy storage element 62 extend into the two third through slots 24 respectively, and then are electrically connected to the first conductive sheet 41 and the second conductive sheet 42 respectively.

[0051] The design of the third through slot 24 enables the energy storage element to be conveniently electrically connected to the power connection piece.

[0052] In some optional embodiments, the third through slot 24 is provided with a second via hole 25, the leg of the first energy storage element 61 passes through the second via hole 25 of the third through slot 24, and then is electrically connected to the side of the first conductive sheet 41 away from the first energy storage element 61, and the leg of the second energy storage element 62 passes through the second via hole 25 of the third through slot 24, and then is electrically connected to the side of the second conductive sheet 42 away from the second energy storage element 62. The second via hole 25 facilitates the leg of the first energy storage element 61 and the leg of the second energy storage element 62 to pass through the third through slot 24, the leg of the first energy storage element 61 is welded to the opposite side of the first power connector 44, so that the position of the first energy storage element 61 is more stable, and the leg of the second energy storage element 62 is welded to the opposite side of the second conductive sheet 42, so that the position of the second energy storage element 62 is more stable.

[0053] In some optional embodiments, a second pad 46 is provided on the first power connector 44 and the second power connector 45. The second pad 46 of the first power connector 44 is welded to the leg of the first energy storage element 61, and the second pad 46 of the second power connector 45 is welded to the leg of the second energy storage element 62. In this embodiment, the second pad 46 is arranged in the third through groove 24.

[0054] The specific structures of the first energy storage element 61 and the second energy storage element 62 can be designed according to actual needs. For example, in some optional embodiments, the first energy storage element 61 and the second energy storage element 62 are inductors. In order to facilitate the fixing of the inductors, a plurality of fixing posts 26 are provided on the brush holder 20, and the inductors are arranged around the fixing posts 26. Of course, the first energy storage element 61 and the second energy storage element 62 can also be capacitors.

[0055] See also Figure 6 In some optional embodiments, the first carbon brush 53 assembly 51 and the second carbon brush 53 assembly 52 both include a carbon brush 53, a mounting seat 54 and a compression spring 55. The mounting seat 54 is arranged on the brush holder 20. A guide channel 56 is arranged in the mounting seat 54. Limiting grooves 57 are arranged on both sides of the guide channel 56. The compression spring 55 is arranged in the guide channel 56 and partially extends into the limiting groove 57. The carbon brush 53 is movably arranged in the guide channel 56 and connected to the compression spring 55. The compression spring 55 is used to keep the carbon brush 53 pressed against the rotor assembly 30. The limiting groove 57 can be used to limit the position of the compression spring 55, and is also conducive to guiding the compression spring 55 to move without being stuck, so as to avoid the situation where the compression spring 55 cannot pop out after the carbon brush 53 is worn and fails, thereby avoiding the situation where the short circuit and the burning of the machine occur.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear-shifting motor, characterized in that: include: Housing, brush holder, rotor assembly, conductive assembly, sliding contact structure and electronic assembly; The brush holder is arranged on the housing; The conductive component comprises a first conductive sheet and a second conductive sheet, and the first conductive sheet and the second conductive sheet are both arranged on the brush holder; The rotor assembly is disposed in the housing; The sliding contact structure and the electronic component are respectively arranged on opposite sides of the brush holder, wherein the sliding contact structure comprises a plurality of first carbon brush assemblies and a plurality of second carbon brush assemblies, the first carbon brush assemblies and the second carbon brush assemblies are both arranged on the brush holder and arranged around the rotor assembly, the first carbon brush assemblies are respectively electrically connected to the first conductive sheet and the rotor assembly, and the second carbon brush assemblies are respectively electrically connected to the second conductive sheet and the rotor assembly; The electronic component includes at least one first energy storage element and at least one second energy storage element, the first energy storage element is electrically connected to the first conductive sheet, and the second energy storage element is electrically connected to the second conductive sheet.

2. A gear-shifting motor according to claim 1, characterized in that: A plurality of first welding pads are provided on the first conductive sheet and the second conductive sheet, the legs of the first carbon brush assembly and the first energy storage element are correspondingly welded and connected to the plurality of first welding pads of the first conductive sheet, and the legs of the second carbon brush assembly and the second energy storage element are correspondingly welded and connected to the plurality of first welding pads of the second conductive sheet.

3. The shift motor according to claim 1, characterized in that: The first conductive sheet and the second conductive sheet are arranged in the brush holder and are integrally formed with the brush holder. The brush holder is provided with a plurality of first through slots and a plurality of second through slots. The first through slots and the second through slots penetrate opposite sides of the brush holder. The first conductive sheet extends into the first through slot, and the second conductive sheet extends into the second through slot. The first carbon brush assembly and the first energy storage element extend into the first through slots correspondingly, and then are electrically connected to the first conductive sheet; The second carbon brush assembly and the second energy storage element extend into the second through slots correspondingly, and then are electrically connected to the second conductive sheet.

4. A shift motor according to claim 3, characterized in that: A first via hole is provided in one of the first through-slots and one of the second through-slots, a leg of the first energy storage element passes through the first through-hole of the first through-slot and is then electrically connected to a side of the first conductive sheet away from the first energy storage element, and a leg of the second energy storage element passes through the first through-hole of the second through-slot and is then electrically connected to a side of the second conductive sheet away from the second energy storage element.

5. A shift motor according to any one of claims 1 to 4, characterized in that: The conductive assembly further includes a first power connection member and a second power connection member, the first energy storage element is electrically connected to the first power connection member and the first conductive sheet respectively, and the second energy storage element is electrically connected to the second power connection member and the second conductive sheet respectively.

6. The gear-shifting motor according to claim 5, characterized in that: The first power connection member and the second power connection member are arranged in the brush holder and are integrally formed with the brush holder. The brush holder is provided with two third through slots, the third through slots run through opposite sides of the brush holder, and the first power connection member and the second power connection member extend into the third through slots respectively and correspondingly; The first energy storage element and the second energy storage element extend into the two third through slots respectively, and then are electrically connected to the first conductive sheet and the second conductive sheet respectively.

7. The shift motor according to claim 6, characterized in that: A second via hole is provided in the third through slot, and the leg of the first energy storage element passes through the second via hole of the third through slot and is then electrically connected to a side of the first conductive sheet away from the first energy storage element. The leg of the second energy storage element passes through the second via hole of the third through slot and is then electrically connected to a side of the second conductive sheet away from the second energy storage element.

8. The gear-shifting motor according to claim 5, characterized in that: The first power connector and the second power connector are provided with second pads, the second pad of the first power connector is welded to the leg of the first energy storage element, and the second pad of the second power connector is welded to the leg of the second energy storage element.

9. A shift motor according to any one of claims 1 to 4, characterized in that: The first energy storage element and the second energy storage element are inductors, a plurality of fixing columns are provided on the brush holder, and the inductors are arranged around the fixing columns.

10. The gear-shifting motor according to any one of claims 1 to 4, characterized in that: The first carbon brush assembly and the second carbon brush assembly both include a carbon brush, a mounting seat and a compression spring. The mounting seat is arranged on the brush holder. A guide channel is arranged in the mounting seat. Limiting grooves are arranged on both sides of the guide channel. The compression spring is arranged in the guide channel and partially extends into the limiting groove. The carbon brush is movably arranged in the guide channel and is connected to the compression spring.

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