CN216451247U

CN216451247U - Automotive actuator motor structure

Info

Publication number: CN216451247U
Application number: CN202123295132.6U
Authority: CN
Inventors: 李茂盛; 马运凡; 史国辉
Original assignee: Wuhan Tianyun Auto Electric System Co ltd
Current assignee: Wuhan Tianyun Auto Electric System Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-06
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a motor structure of an actuator for a vehicle, which comprises a reduction gearbox subassembly, a brush holder subassembly, a rotor subassembly and a stator subassembly which are sequentially assembled; the rotor sub-assembly comprises a rotating shaft, a worm, a magnetic ring, a commutator and a coil winding, the worm is correspondingly arranged in the reduction gearbox sub-assembly, the magnetic ring and the commutator are correspondingly arranged in the brush holder sub-assembly, and the coil winding is correspondingly arranged in the stator sub-assembly. The utility model counteracts the noise caused by the axial movement of the axial assembly gap of the rotating shaft during high-speed operation through the pressing block, and the concave arc salient points and the convex arc points are matched to form interference points, thereby avoiding the noise generated by structural dislocation, improving the stability of structural connection, having compact integral structure, low noise and good reliability, and simultaneously, the symmetrically arranged interfaces can also realize the left and right mirror image installation of the motor to adapt to different application scenes, thereby having better application prospect.

Description

Automotive actuator motor structure

Technical Field

The utility model relates to the technical field of automobile equipment, in particular to a motor structure of an actuator for an automobile.

Background

The vehicle actuator motor is a common power output component on the automobile equipment, generally comprises an internal reduction gearbox, a brush carrier and a driving part (a rotor and stator assembly), realizes power output through a movement mechanism in transmission connection with the driving part, and can be applied to the motor drive of actuating mechanisms such as a steering wheel lifting adjusting mechanism, an automobile seat, a skylight, a swinging window and the like on the automobile equipment.

The existing motor structure of the vehicle actuator is complex, and the complex internal structure is easy to displace due to the vibration generated by the rotating rod when the motor operates, so that the noise is generated due to the occurrence of malfunction or structural dislocation, and therefore the motor structure of the vehicle actuator with compact and reliable structure is urgently needed to appear at present.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of related products in the prior art, the utility model provides a motor structure of an automobile actuator, which solves the problems that the motor structure of the existing automobile actuator is complex and is easy to generate noise due to malfunction or structural dislocation.

The utility model provides a motor structure of an actuator for a vehicle, which comprises a reduction gearbox sub-assembly, a brush carrier sub-assembly, a rotor sub-assembly and a stator sub-assembly which are sequentially assembled; the rotor subassembly comprises a rotating shaft, a worm, a magnetic ring, a commutator and a coil winding, the rotating shaft sequentially penetrates through the reduction gearbox subassembly, the brush holder subassembly and the stator subassembly, the worm, the magnetic ring, the commutator and the coil winding are sequentially sleeved on the rotating shaft, the worm is correspondingly arranged in the reduction gearbox subassembly, the magnetic ring and the commutator are correspondingly arranged in the brush holder subassembly, and the coil winding is correspondingly arranged in the stator subassembly.

In some embodiments of the present invention, the reduction gearbox sub-assembly includes a reduction gearbox housing, a helical gear is disposed in the reduction gearbox housing, the helical gear is engaged with the worm, and a spline groove is disposed at an axial center of the helical gear.

In some embodiments of the present invention, a rotating cavity for accommodating the rotating shaft is disposed on one side of the bevel gear of the reduction gearbox housing, a bottom groove is disposed in the reduction gearbox housing along an axial bottom of the rotating cavity, a pressing block is disposed at a bottom of the bottom groove, a shaft end bearing is disposed at a top of the bottom groove, and the rotating shaft penetrates through the shaft end bearing and is supported on the pressing block through a shaft end gasket.

In some embodiments of the present invention, the bottom groove is a cross rib clamping groove structure, and the pressing block is made of a rubber material.

In some embodiments of the present invention, the stator sub-assembly includes a stator housing, a ball bearing and a shaft end gasket are respectively disposed at a bottom of the stator housing, a bottom end of the rotating shaft penetrates through the ball bearing and is supported on the shaft end gasket, two sets of magnetic shoes are symmetrically attached to an inner wall of the stator housing, and the two sets of magnetic shoes surround an outer side of a coil winding of the rotating shaft.

In some embodiments of the present invention, two sets of symmetrically distributed ports are disposed at the bottom of the reduction gearbox sub-assembly, and the reduction gearbox sub-assembly is fixedly connected to the stator sub-assembly through the ports.

In some embodiments of the utility model, the edge of the reduction gearbox sub-assembly is further provided with a plurality of groups of concave arc convex points, and the brush holder sub-assembly is respectively provided with convex arc points corresponding to the positions of the concave arc convex points.

Compared with the prior art, the utility model has the following advantages:

according to the vehicle actuator motor structure, the pressing block is used for offsetting noise caused by axial movement of an axial assembly gap of the rotating shaft during high-speed operation, the concave arc salient points and the convex arc points are matched to form interference points, the stability of structural connection is improved, noise generated by structural dislocation is avoided, the whole structure is compact, the noise is low, the reliability is good, meanwhile, the symmetrical interfaces can realize left and right mirror image installation of the motor to adapt to different application scenes, and the vehicle actuator motor structure has a good application prospect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a motor structure of an actuator for a vehicle according to the present invention;

FIG. 2 is a cross-sectional view of the motor structure of the actuator for a vehicle according to the present invention;

FIG. 3 is a schematic view of the bottom trough of the present invention;

FIG. 4 is a schematic structural view of the reduction box sub-assembly and the brush holder sub-assembly according to the present invention.

Description of reference numerals:

1. a reduction gearbox sub-assembly; 2. a brush holder sub-assembly; 3. a rotor subassembly; 4. a stator sub-assembly; 5. a gearbox housing; 6. a helical gear; 7. a spline groove; 8. a rotating shaft; 9. a worm; 10. a bottom groove; 11. briquetting; 12. a shaft end spacer; 13. a shaft end bearing; 14. a ball bearing; 15. a stator housing; 16. a coil winding; 17. a magnetic shoe; 18. a clamp spring; 19. concave arc convex points; 20. a convex arc point; 21. an interface; 22. a magnetic ring; 23. a commutator.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely illustrative of some, but not all, of the embodiments of the utility model, and that the preferred embodiments of the utility model are shown in the drawings. This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present disclosure is set forth in order to provide a more thorough understanding thereof.

Referring to fig. 1-2, the motor structure of the vehicle actuator comprises a reduction gearbox sub-assembly 1, a brush holder sub-assembly 2, a rotor sub-assembly 3 and a stator sub-assembly 4 which are assembled in sequence;

the rotor sub-assembly 3 comprises a rotating shaft 8, a worm 9, a magnetic ring 22, a commutator 23 and a coil winding 16, the rotating shaft 8 sequentially penetrates through the reduction gearbox sub-assembly 1, the brush holder sub-assembly 2 and the stator sub-assembly 4, the worm 9, the magnetic ring 22, the commutator 23 and the coil winding 16 are sequentially sleeved on the rotating shaft 8, the worm 9 is correspondingly arranged in the reduction gearbox sub-assembly 1, the magnetic ring 22 and the commutator 23 are correspondingly arranged in the brush holder sub-assembly 2, and the coil winding 16 is correspondingly arranged in the stator sub-assembly 4.

The reduction gearbox sub-assembly 1 comprises a reduction gearbox shell 5, wherein a helical gear 6 is arranged in the reduction gearbox shell 5, the helical gear 6 is meshed with a worm 9, a spline groove 7 is formed in the axis position of the helical gear 6, a spline shaft on external vehicle equipment is inserted in the spline groove 7, the spline shaft supports the helical gear 6, and under the driving of a rotating shaft 8, the worm 9 is matched with the helical gear 6 to output power under the transmission effect to drive the spline shaft on the vehicle equipment to rotate.

One side of the reduction gearbox shell 5, which is located on the helical gear 6, is provided with a rotating cavity for accommodating the rotating shaft 8, a bottom groove 10 is arranged in the reduction gearbox shell 5 along the axial bottom of the rotating cavity, a pressing block 11 is arranged at the bottom of the bottom groove 10, a shaft end bearing 13 is arranged at the top of the bottom groove 10, and the rotating shaft 8 penetrates through the shaft end bearing 13 and is supported on the pressing block 11 through a shaft end gasket 12. Referring to fig. 3, the bottom groove 10 is a cross rib clamping groove structure, the pressing block 11 is made of rubber materials, the pressing block 11 can be positioned, the expanded excircle of the pressing block 11 during compression can be removed, so that rubber elasticity is released, the pressing block 11 is matched with the shaft end gasket 12 to provide extrusion force of the rotating shaft 8, and noise caused by axial movement of the axial assembly gap of the rotating shaft 8 during high-speed operation can be eliminated.

Stator subassembly 4 includes stator housing 15, stator housing 15's bottom is provided with ball bearing 14 and axle head gasket 12 respectively, the bottom of axis of rotation 8 is worn to establish and is held in the top in the ball bearing 14 on the axle head gasket 12, the laminating symmetry of stator housing 15 inner wall department is provided with two sets of magnetic shoes 17, and is two sets of magnetic shoes 17 encircles the 16 outsides of coil winding of axis of rotation 8, magnetic shoes 17 bottom is provided with jump ring 18.

Referring to fig. 4, two sets of interfaces 21 are symmetrically arranged at the bottom of the reduction gearbox sub-assembly 1, the reduction gearbox sub-assembly 1 is fixedly connected with the stator sub-assembly 4 through the interfaces 21, and the symmetrically arranged interfaces 21 can be used for the stator sub-assembly 4 to be rotatably installed at 180 degrees, so that left or right (mirror image) motors can be installed in different ways to adapt to different application scenarios.

The edge of the reduction gearbox sub-assembly 1 is also provided with a plurality of groups of concave arc convex points 19, the brush holder sub-assembly 2 is respectively provided with convex arc points 20 corresponding to the positions of the concave arc convex points 19, the concave arc convex points 19 and the convex arc points 20 are matched to form interference points, and assembly gaps can be well reduced to prevent noise caused by looseness.

The brush holder sub-assembly 2 is internally provided with a Hall assembly corresponding to the magnetic ring 22, and a group of Hall signals can be provided at the socket of the motor through the Hall principle, so that a real-time rotating speed signal can be provided. Still be equipped with components and parts fixed knot structures such as inductance, electric capacity, resistance, thermal protector in the brush yoke sub-assembly 2 correspondingly, realize filtering, reduce electromagnetic interference, overheat protection's function according to concrete function needs. The functions of the Hall signals, electromagnetic interference reduction or overheating protection can be increased or decreased according to the requirements of different configurations.

And a carbon brush assembly is arranged in the brush holder sub-assembly 2 corresponding to the commutator 23 and used for energizing and exciting the coil winding 16 to generate magnetic torque so as to drive the rotating shaft 8 to rotate.

According to the motor structure of the vehicle actuator, noise caused by axial movement of an axial assembly gap of the rotating shaft 8 during high-speed operation is counteracted through the pressing block 11, the concave arc salient points 19 and the convex arc points 20 are matched to form interference points, the stability of structural connection is improved, noise generated by structural dislocation is avoided, the whole structure is compact, the noise is low, the reliability is good, meanwhile, the symmetrical interfaces 21 can realize left and right mirror image installation of the motor to adapt to different application scenes, and the motor structure has a good application prospect.

Those not described in detail in this specification are within the skill of the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments. All equivalent structures made by using the contents of the specification and the attached drawings of the utility model can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the utility model.

Claims

1. An actuator motor structure for a vehicle, comprising: the reduction gearbox sub-assembly (1), the brush holder sub-assembly (2), the rotor sub-assembly (3) and the stator sub-assembly (4) are assembled in sequence; the rotor sub-assembly (3) comprises a rotating shaft (8), a worm (9), a magnetic ring (22), a commutator (23) and a coil winding (16), the rotating shaft (8) sequentially penetrates through the reduction gearbox sub-assembly (1), the brush holder sub-assembly (2) and the stator sub-assembly (4), the worm (9), the magnetic ring (22), the commutator (23) and the coil winding (16) are sequentially sleeved on the rotating shaft (8), the worm (9) is correspondingly arranged in the reduction gearbox sub-assembly (1), the magnetic ring (22) and the commutator (23) are correspondingly arranged in the brush holder sub-assembly (2), and the coil winding (16) is correspondingly arranged in the stator sub-assembly (4).

2. The actuator motor structure for vehicle according to claim 1, wherein: the reduction gearbox sub-assembly (1) comprises a reduction gearbox shell (5), wherein a helical gear (6) is arranged in the reduction gearbox shell (5), the helical gear (6) is meshed with the worm (9), and a spline groove (7) is formed in the axis position of the helical gear (6).

3. The actuator motor structure for vehicle according to claim 2, wherein: one side that gearbox housing (5) is located helical gear (6) is provided with the rotation chamber that holds axis of rotation (8), be provided with kerve (10) along the axial bottom in rotation chamber in gearbox housing (5), the bottom of kerve (10) is provided with briquetting (11), the top of kerve (10) is provided with axle head bearing (13), axis of rotation (8) are worn to establish in axle head bearing (13) to hold through axle head gasket (12) top on briquetting (11).

4. The actuator motor structure for vehicle according to claim 3, wherein: the bottom groove (10) is of a cross rib clamping groove structure, and the pressing block (11) is made of rubber materials.

5. The actuator motor structure for vehicle according to claim 1, wherein: stator subassembly (4) include stator housing (15), the bottom of stator housing (15) is provided with ball bearing (14) and axle head gasket (12) respectively, the bottom of axis of rotation (8) is worn to establish ball bearing (14) are interior and the top is held on axle head gasket (12), stator housing (15) inner wall department laminating symmetry is provided with two sets of magnetic shoe (17), and is two sets of magnetic shoe (17) encircle the coil winding (16) outside of axis of rotation (8).

6. The actuator motor structure for vehicle according to claim 1, wherein: two groups of symmetrically distributed interfaces (21) are arranged at the bottom of the reduction gearbox subassembly (1), and the reduction gearbox subassembly (1) is fixedly connected with the stator subassembly (4) through the interfaces (21).

7. The actuator motor structure for vehicle according to claim 1, wherein: the edge of the reduction gearbox sub-assembly (1) is also provided with a plurality of groups of concave arc convex points (19), and convex arc points (20) are respectively arranged at the positions of the brush holder sub-assembly (2) corresponding to the concave arc convex points (19).