Stator assembly structure applied to motor

Abstract

The stator assembly structure applied to the motor comprises a casing, and a first shaft hole is formed in the center of the bottom end of the casing; the stator is fixedly arranged on the inner circumference of the machine shell; the fixed support is fixedly arranged at the opening end of the machine shell; the bearing support is buckled and fixed to the fixing support, a bearing groove which is sunken towards the top side is formed in the center of the bearing support, and a second shaft hole is formed in the center of the bearing groove; the rotor is rotatably arranged in the shell, one end of a rotating shaft of the rotor is rotatably connected with the first shaft hole, and the other end of the rotating shaft of the rotor is rotatably connected with the second shaft hole; the bearing is installed in the bearing groove, and an inner ring of the bearing is fixedly arranged on a rotating shaft of the rotor in a sleeving mode; and the pressure spring sleeves the rotating shaft of the rotor, one end of the pressure spring abuts against the groove bottom of the bearing groove, and the other end of the pressure spring abuts against the outer ring of the bearing. According to the scheme, rapid fixation between the bearing support and the fixing support can be achieved, the problems that a traditional screw locking structure is low in assembling efficiency and low in yield are solved, and the screw locking structure is suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a stator assembly structure used in motors. Background Art

[0002] The electric motor, commonly known as "motor", refers to an electromagnetic device that converts electrical energy based on electromagnetic induction. Currently, electric motors are widely used and are ubiquitous in industrial production, home life, and transportation. They are widely used in various types of transportation, such as electric bicycles and electric vehicles.

[0003] The motor is usually composed of a casing, a stator, a rotor, a bearing bracket and an end cover. The stator is fixed on the inner wall of the casing, the bearing bracket is fixed on the open end of the casing, the rotor is rotatably mounted in the casing, one end of the rotor is rotatably connected to the casing, the other end of the rotor is rotatably connected to the bearing bracket, and the end cover is mounted on the bearing bracket. In order to prevent the rotor from axial movement, a compression spring is usually mounted on the rotor shaft, one end of the compression spring is against the bearing bracket, and the other end is against the outer ring of the bearing mounted on the shaft. At present, the bearing bracket and the casing are locked and connected by multiple circumferential screws. Under the action of the compression spring, unless multiple screws are tightened at the same time, the edge is prone to warping. On the one hand, the assembly efficiency is low, and on the other hand, it is easy to cause product defects.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to design a stator assembly structure used in the motor to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide a stator assembly structure used in a motor.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a stator assembly structure applied to a motor, comprising:

[0007] A casing, wherein a first shaft hole is provided at the center of the bottom end of the casing;

[0008] A stator, the stator being fixedly arranged on the inner circumference of the casing;

[0009] A fixed bracket, the fixed bracket being fixedly arranged at the opening end of the housing;

[0010] A bearing bracket, the bearing bracket is buckled and fixed on the fixing bracket, a bearing groove recessed toward the top side is formed at the center of the bearing bracket, and a second shaft hole is provided at the center of the bearing groove;

[0011] A rotor, wherein the rotor is rotatably disposed in the housing, one end of the rotor shaft is rotatably connected to the first shaft hole, and the other end of the rotor shaft is rotatably connected to the second shaft hole;

[0012] A bearing, wherein the bearing is installed in the bearing groove, and the inner ring of the bearing is sleeved and fixed on the rotating shaft of the rotor;

[0013] A compression spring is sleeved on the rotating shaft of the rotor, one end of the compression spring abuts against the bottom of the bearing groove, and the other end of the compression spring abuts against the outer ring of the bearing.

[0014] The preferred technical solution is: a plurality of locking groove structures arranged at equal angles are provided on the top side of the fixing bracket, a plurality of locking buckle structures arranged at equal angles are provided on the bottom side of the bearing bracket, and the plurality of locking groove structures and the plurality of locking buckle structures are matched and arranged one by one.

[0015] The preferred technical solution is: a protrusion is provided at the bottom of the locking groove structure.

[0016] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0017] The stator assembly structure applied to the motor proposed by the utility model designs the connection structure between the bearing bracket and the fixed bracket as a locking structure, which can realize rapid fixation between the bearing bracket and the fixed bracket, solves the problems of low assembly efficiency and low yield rate existing in the traditional screw locking structure, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an exploded view of the motor involved in the utility model. DETAILED DESCRIPTION

[0019] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0020] See also Figure 1. It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example:

[0023] like Figure 1 According to an overall technical concept of the utility model, a stator assembly structure for a motor is provided, comprising:

[0024] The casing 1 has a first axial hole at the center of the bottom end thereof;

[0025] The stator 2 is fixedly arranged on the inner circumference of the casing 1;

[0026] A fixed bracket 3, the fixed bracket 3 is fixed to the opening end of the housing 1;

[0027] The bearing bracket 4 is buckled and fixed on the fixing bracket 3. A bearing groove 41 which is recessed toward the top side is formed at the center of the bearing bracket 4. A second shaft hole is provided at the center of the bearing groove 41.

[0028] The rotor 5 is rotatably disposed in the housing 1, one end of the rotating shaft of the rotor 5 is rotatably connected to the first shaft hole, and the other end of the rotating shaft of the rotor 5 is rotatably connected to the second shaft hole;

[0029] Bearing 6, bearing 6 is installed in bearing groove 41, and the inner ring of bearing 6 is sleeved and fixed on the rotating shaft of rotor 5;

[0030] The compression spring 7 is sleeved on the rotating shaft of the rotor 5 , one end of the compression spring 7 abuts against the bottom of the bearing groove 41 , and the other end of the compression spring 7 abuts against the outer ring of the bearing 6 .

[0031] During specific assembly, the stator 2 is fixed on the inner wall of the casing 1, the fixing bracket 3 is fixed on the open end of the casing 1, and then one end of the rotor 5 is rotated and set in the first shaft hole, and then the bearing 6 and the compression spring 7 are sequentially sleeved on the other end of the rotor 5, and then the bearing bracket 4 is directly buckled and fixed on the fixing bracket 3, so that the bearing 6 is set in the bearing groove 41, and the other end of the rotor 5 passes through the second shaft hole.

[0032] like Figure 1 In an exemplary embodiment of the utility model, a plurality of locking groove structures 31 arranged at equal angles are provided on the top side of the fixing bracket 3, and a plurality of locking buckle structures 42 arranged at equal angles are provided on the bottom side of the bearing bracket 4. The plurality of locking groove structures 31 and the plurality of locking buckle structures 42 are matched and arranged one by one. This structure is used to realize the rapid assembly of the bearing bracket 4 to improve the assembly efficiency and yield.

[0033] like Figure 1 In an exemplary embodiment of the present invention, a protrusion 32 is provided at the bottom of the locking groove structure 31 to ensure that there is no gap between the bearing bracket 4 and the fixing bracket 3, thereby causing axial movement of the rotor 5.

[0034] Therefore, the utility model has the following advantages:

[0035] The stator assembly structure applied to the motor proposed by the utility model designs the connection structure between the bearing bracket and the fixed bracket as a locking structure, which can realize rapid fixation between the bearing bracket and the fixed bracket, solves the problems of low assembly efficiency and low yield rate existing in the traditional screw locking structure, and is suitable for promotion.

[0036] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A stator assembly structure used in a motor, characterized in that: include: A casing, wherein a first shaft hole is provided at the center of the bottom end of the casing; A stator, the stator being fixedly arranged on the inner circumference of the casing; A fixed bracket, the fixed bracket being fixedly arranged at the opening end of the housing; A bearing bracket, the bearing bracket is buckled and fixed on the fixing bracket, a bearing groove recessed toward the top side is formed at the center of the bearing bracket, and a second shaft hole is provided at the center of the bearing groove; A rotor, wherein the rotor is rotatably disposed in the housing, one end of the rotor shaft is rotatably connected to the first shaft hole, and the other end of the rotor shaft is rotatably connected to the second shaft hole; A bearing, wherein the bearing is installed in the bearing groove, and the inner ring of the bearing is sleeved and fixed on the rotating shaft of the rotor; A compression spring is sleeved on the rotating shaft of the rotor, one end of the compression spring abuts against the bottom of the bearing groove, and the other end of the compression spring abuts against the outer ring of the bearing.

2. The stator assembly structure used in a motor according to claim 1, characterized in that: The top side of the fixing bracket is provided with a plurality of locking groove structures arranged at equal angles, and the bottom side of the bearing bracket is provided with a plurality of locking buckle structures arranged at equal angles, and the plurality of locking groove structures and the plurality of locking buckle structures are matched and arranged in a one-to-one correspondence.

3. The stator assembly structure used in a motor according to claim 2, characterized in that: A protrusion is provided at the bottom of the locking groove structure.

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