CN-224217874-U - Motor and motor carbon brush assembly thereof

CN224217874UCN 224217874 UCN224217874 UCN 224217874UCN-224217874-U

Abstract

The application discloses a motor carbon brush assembly, which comprises a carbon sleeve and a carbon brush which are mutually sleeved, wherein a brush braid is arranged at the top of the carbon brush, the carbon sleeve is provided with a functional groove, the brush braid extends out of the functional groove, and a limiting piece is arranged based on the functional groove and used for temporarily fixing the brush braid so that the carbon brush is retracted into the carbon sleeve. According to the motor carbon brush assembly, the bent and extended three-dimensional space structure of the brush braid is utilized, and the limiting piece is arranged outside the carbon sleeve to temporarily limit the brush braid, so that the temporary fixation of the carbon brush is achieved, and the carbon brush is prevented from being directly contacted.

Inventors

WANG MIAOYU
LI MAOJUN
LIN DAOHUI
Bian Minghui
Luo Liangwo
HUANG LINGFENG
ZHOU LIANG
YANG SIMIN

Assignees

广东好太太科技集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250422

Claims (10)

1. The utility model provides a motor carbon brush subassembly, its characterized in that, includes carbon cover and the carbon brush that mutually overlaps and establish, the brush braid is disposed at the carbon brush top, the carbon cover is equipped with the functional groove, and makes the brush braid follow the functional groove stretches out, based on the functional groove disposes the locating part for temporarily fix the brush braid, make the carbon brush is retracted to inside the carbon cover.
2. The motor carbon brush assembly according to claim 1, wherein the carbon sleeve includes a top wall, a side wall bordering the top wall, a rivet leg extending downward from the side wall, and a rear wall provided at a rear of the carbon sleeve, the top wall being provided with a first functional groove in a longitudinal direction such that the brush tail protrudes from the first functional groove.
3. The motor carbon brush assembly according to claim 2, wherein the stopper is provided on the upper surface of the first functional groove and/or the top wall when the stopper is used for temporarily fixing the proximal end of the brush tail.
4. The motor carbon brush assembly according to claim 3, wherein the stopper includes a movable stopper column including a column body defined by a cylindrical wall which is multiply foldable longitudinally, a suction cup provided below the column body, and an operation panel provided above the column body.
5. The motor carbon brush assembly according to claim 2, wherein the rear wall is spaced apart from the top wall and the side wall, respectively, to form a second functional groove.
6. The motor carbon brush assembly according to claim 5, wherein the stopper is provided in the second functional groove and/or the top wall in a region close to the second functional groove when the stopper is used for temporarily fixing the distal end of the brush tail.
7. The motor carbon brush assembly according to claim 6, wherein the stopper includes a hanger extending upward from a rear edge of the top wall, the hanger being connected to the carbon sleeve by an elastic sheet so that the hanger is inwardly retracted into the carbon sleeve when pressed, or the stopper includes a stopper piece insertable from the second functional groove, the stopper piece including at least three support flaps concentrically arranged in a coplanar manner, each support flap being connected by a gathering portion so that when any two of the support flaps are radially pressed, the remaining support flaps are inwardly retracted toward a center direction, and a single support flap is used for temporarily fixing the brush braid.
8. The motor carbon brush assembly according to claim 7, wherein the gathering portion includes a plurality of circularly arranged folding units converging at a center of a circle, adjacent folding units are mirror-symmetrical, each folding unit includes an upper rib, a transition rib and a concave rib arranged from top to bottom with respect to the circular surface, and a connection surface connecting the respective edges, and adjacent connection surfaces are movable around a common edge.
9. The motor carbon brush assembly according to claim 7, wherein the limiting piece further comprises a standing piece connected to the gathering portion and arranged concentrically and coplanar with the supporting piece, and the standing piece has a thickness smaller than the supporting piece.
10. An electric motor comprising a stator and a rotor which are matched with each other, wherein the stator adopts the motor carbon brush assembly as claimed in any one of claims 1 to 9.

Description

Motor and motor carbon brush assembly thereof Technical Field The application relates to the technical field of motors, in particular to a motor and a motor carbon brush assembly thereof. Background The brush motor works in the principle that an electric brush and a commutator are arranged between a stator and a rotor, and the rotor is driven to rotate relative to the stator by generating electromagnetic torque so as to output torque. The carbon brush of brush needs to contact with the commutator after assembling, in order to meet the working requirement, the carbon brush is usually provided with an elastic abutting structure so as to be in good contact with the commutator, but this arrangement makes the assembly of the brush motor inconvenient, the front end of the carbon brush which stretches out in advance produces steric hindrance to the assembly of the commutator or the stator, the existing measures adopted are simply to pull out the carbon brush by using a common tool such as a screwdriver, so that the carbon brush is temporarily retracted in the carbon sleeve to give out the operation space for assembling the commutator and the stator, but a plurality of workers are possibly needed to assist when one motor is provided with a plurality of brushes, which is disadvantageous to improving the assembly efficiency. Disclosure of utility model Aiming at the defects of the existing mode, the application provides a motor and a motor carbon brush assembly thereof, which are used for solving the technical problems that the related technology needs human intervention and is inconvenient for motor assembly. In a first aspect, the present application provides a carbon brush assembly for a motor, which includes a carbon sleeve and a carbon brush that are sleeved with each other, wherein a brush braid is disposed at a top of the carbon brush and extends to be bent outwards, the carbon sleeve is provided with a functional groove, the brush braid extends out of the functional groove, and a limiting member is disposed based on the functional groove and is used for temporarily fixing the brush braid, so that the carbon brush is retracted into the carbon sleeve. Further, the carbon sleeve comprises a top wall, side walls bordering the top wall, riveting feet extending downwards from the side walls and a rear wall blocked behind the carbon sleeve, wherein the top wall is provided with a first functional groove along the longitudinal direction, so that the brush braids extend out of the first functional groove. Optionally, the limiting member is disposed on the first functional groove and/or the upper surface of the top wall when the limiting member is used for temporarily fixing the proximal end of the brush braid. Further alternatively, the limiting member comprises a movable limiting column, the movable limiting column comprises a column body, a sucker arranged below the column body and an operating panel arranged above the column body, and the column body is limited by a cylindrical wall capable of being folded in multiple longitudinal directions. Optionally, the rear wall is spaced from the top and side walls, respectively, to form a second functional slot. Further optionally, the limiting member is disposed in the second functional groove and/or the top wall in a region adjacent to the second functional groove when the limiting member is used for temporarily fixing the distal end of the brush tail. Optionally, the limiting piece comprises a hook extending upwards from the rear edge of the top wall, the hook is connected with the carbon sleeve through an elastic sheet, so that the hook can retract inwards into the carbon sleeve when being pressed, or the limiting piece comprises a limiting piece which can be inserted from the second functional groove, the limiting piece comprises at least three supporting petals which are arranged concentrically in a coplanar mode, each supporting petal is connected through a gathering part, when any two supporting petals are pressed radially, the rest supporting petals retract inwards towards the center, and a single supporting petal is used for temporarily fixing the brush braid. The folding unit comprises an upper convex rib, a transition rib and a lower concave rib which are arranged from top to bottom relative to a round surface, and a connecting surface for connecting the edges, wherein the adjacent connecting surfaces can move around the common edge. Optionally, the limiting piece further comprises a standing lobe, the standing lobe is connected to the gathering part and concentrically arranged in a coplanar mode with the supporting lobe, and the thickness of the standing lobe is smaller than that of the supporting lobe. In a second aspect, the application further provides a motor, which comprises a stator and a rotor which are matched with each other, wherein the stator adopts the motor carbon brush assembly. The technical scheme provided by the embodiment of the application ha