Brushless motor stator assembly convenient to maintain

Abstract

The utility model provides a brushless motor stator assembly convenient to maintain, which comprises an inner ring, an outer ring, a stator core, a stator core, a stator core, a stator core, a stator core, a stator core, a stator core, a stator core and a stator core, and is characterized in that the top of the inner side surface of the inner ring is provided with a thread groove; the plurality of clamping blocks are respectively clamped on the inner side surfaces of the plurality of clamping grooves, one side of each of the plurality of clamping blocks is fixedly provided with an insulating part, and one end of each insulating part is fixedly provided with a stator iron core; and the limiting ring is arranged at the top of the inner ring. According to the brushless motor stator assembly convenient to maintain provided by the utility model, through mutual cooperation of structures such as the clamping groove, the threaded groove, the clamping block, the limiting ring, the positioning block, the threaded ring and the check ring, when the brushless motor stator assembly is used, the threaded ring is in threaded connection with the inner side surface of the threaded groove; and then the check ring drives the limiting ring and the positioning block to move downwards, so that the bottom of the positioning block is pressed on the top of the clamping block, and the stability of connection between the stator iron core and the inner ring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motors, in particular to a brushless motor stator component which is easy to maintain. Background Art

[0002] The brushless DC motor uses electronic commutation. It has no commutator or carbon brushes, but uses a position sensor. It is mainly composed of a permanent magnet rotor, a multi-pole winding stator and a position sensor. The position sensor energizes the adjacent stator coils according to the position of the rotor's magnetic poles, allowing the stator to generate magnetic poles that are attracted to the rotor, which can attract the rotor to rotate. This repeated process can drive the motor to rotate.

[0003] For example, in the patent application with publication number CN 219181250 U in the prior art, a limiting groove recessed inwardly is provided on the outer wall of the upper end of the inner ring, a connecting groove connected to the limiting groove is provided on the outer wall of the outer side of the inner ring, the outer ring is located outside the inner ring, the outer ring includes a plurality of stator cores, the plurality of stator cores are arranged in a circular matching connection, an insulating frame is connected to the inner side of each stator core, a connecting block matched with the connecting groove is connected to the side of the insulating frame close to the inner ring, and a limiting block matched with the limiting groove is connected to the other side of the connecting block; the utility model provides a plurality of stator cores, and the stator cores are connected to the inner ring through the connected insulating frame, so that the stator assembly can be easily disassembled and installed, and the partial disassembly and maintenance of the stator assembly can be convenient.

[0004] The stator core is installed by being clamped on the inner side of the limiting groove through a limiting block. Due to the lack of a limiting structure, the stator core can still move up and down after installation, which reduces the stability of the stator core installation.

[0005] Therefore, it is necessary to provide a brushless motor stator assembly that is easy to maintain to solve the above technical problems. Utility Model Content

[0006] The utility model provides a brushless motor stator component which is easy to maintain and solves the problem of lack of a limiting structure and reduced installation stability of a stator core.

[0007] In order to solve the above technical problems, the utility model provides a brushless motor stator assembly that is easy to maintain, comprising:

[0008] An inner ring, wherein a thread groove is formed on the top of the inner side surface of the inner ring, and a plurality of clamping grooves are formed on the outer side surface of the inner ring;

[0009] A plurality of clamping blocks, wherein the plurality of clamping blocks are respectively clamped to the inner side surfaces of the plurality of clamping grooves, an insulating portion is fixedly mounted on one side of the plurality of clamping blocks, and a stator core is fixedly mounted on one end of the insulating portion;

[0010] A limiting ring is arranged at the top of the inner ring, a plurality of positioning blocks are provided at the bottom of the limiting ring, a retaining ring is arranged at the top of the limiting ring, and a threaded ring is fixedly installed at the bottom of the retaining ring.

[0011] Preferably, the plurality of positioning blocks are respectively arranged on the inner side surfaces of the plurality of clamping grooves, and the bottoms of the plurality of positioning blocks are arranged on the tops of the plurality of clamping blocks.

[0012] Preferably, the thread ring is arranged on the inner side surface of the limiting ring, and the outer side surface of the thread ring is threadedly connected to the inner side surface of the thread groove.

[0013] Preferably, a convex strip is fixedly mounted on one side of the stator core, and a groove is fixedly mounted on the other side of the stator core.

[0014] Preferably, a connecting groove is provided on the top of the positioning block, and a connecting strip is provided on the inner side of the connecting groove.

[0015] Preferably, a wear-resistant pad is fixedly mounted on the top of the connecting strip.

[0016] Preferably, the bottom of the wear-resistant pad is arranged on the top of the positioning block.

[0017] Compared with the related art, the brushless motor stator assembly provided by the utility model which is easy to maintain has the following beneficial effects:

[0018] The utility model provides a brushless motor stator component which is easy to maintain. The stator component cooperates with each other through structures such as a clamping groove, a thread groove, a clamping block, a limiting ring, a positioning block, a thread ring and a retaining ring. When in use, the thread ring is threadedly connected to the inner side surface of the thread groove, and then the retaining ring drives the limiting ring and the positioning block to move downward, so that the bottom of the positioning block is pressed on the top of the clamping block, thereby increasing the stability of the connection between the stator core and the inner ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a first embodiment of a brushless motor stator assembly that is easy to maintain provided by the utility model;

[0020] Figure 2 for Figure 1 The schematic diagram of the inner ring structure shown;

[0021] Figure 3 for Figure 1 The schematic diagram of the retaining ring structure shown;

[0022] Figure 4 for Figure 1 The schematic diagram of the limit ring structure shown;

[0023] Figure 5 The utility model provides a schematic structural diagram of a second embodiment of a brushless motor stator assembly that is easy to maintain.

[0024] Numbers in the figure: 1, inner ring, 11, snap-in groove, 12, threaded groove, 2, snap-in block, 21, insulating part, 22, stator core, 23, convex strip, 24, groove, 3, limit ring, 31, positioning block, 32, threaded ring, 33, retaining ring, 4, connecting groove, 41, connecting strip, 42, wear-resistant pad. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0026] First embodiment

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic structural diagram of a first embodiment of a brushless motor stator assembly that is easy to maintain provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the inner ring structure shown; Figure 3 for Figure 1 The schematic diagram of the retaining ring structure shown; Figure 4 for Figure 1 A schematic diagram of the limiting ring structure is shown. A brushless motor stator assembly that is easy to maintain, comprising: an inner ring 1, a thread groove 12 is formed on the top of the inner side surface of the inner ring 1, and a plurality of clamping grooves 11 are formed on the outer side surface of the inner ring 1;

[0028] A plurality of clamping blocks 2, wherein the plurality of clamping blocks 2 are respectively clamped to the inner side surfaces of the plurality of clamping grooves 11, an insulating portion 21 is fixedly mounted on one side of the plurality of clamping blocks 2, and a stator core 22 is fixedly mounted on one end of the insulating portion 21;

[0029] The limiting ring 3 is arranged at the top of the inner ring 1, a plurality of positioning blocks 31 are provided at the bottom of the limiting ring 3, a retaining ring 33 is provided at the top of the limiting ring 3, and a threaded ring 32 is fixedly installed at the bottom of the retaining ring 33.

[0030] The plurality of positioning blocks 31 are respectively disposed on the inner side surfaces of the plurality of clamping slots 11 , and the bottoms of the plurality of positioning blocks 31 are disposed on the tops of the plurality of clamping blocks 2 .

[0031] The outer side surface of the positioning block 31 and the inner side surface of the clamping groove 11 are tightly fitted, thereby increasing the stability of limiting the clamping block 2 .

[0032] The thread ring 32 is disposed on the inner side surface of the limiting ring 3 , and the outer side surface of the thread ring 32 is threadedly connected to the inner side surface of the thread groove 12 .

[0033] A convex strip 23 is fixedly mounted on one side of the stator core 22 , and a groove 24 is fixedly mounted on the other side of the stator core 22 .

[0034] There are multiple stator cores 22 . When in use, the multiple stator cores 22 are spliced ​​together so that the protruding strips 23 are inserted into the inner side surfaces of the grooves 24 .

[0035] The working principle of the brushless motor stator assembly provided by the utility model which is easy to maintain is as follows:

[0036] During installation, the user inserts multiple clamping blocks 2 into the inner side of the clamping groove 11, and docks the side of the stator core 22 installed at one end of the multiple insulating parts 21, so that the convex strip 23 is clamped into the inner side of the groove 24, and then the user places the limiting ring 3 on the top of the inner ring 1, so that the positioning block 31 is clamped into the inner side of the clamping groove 11, and the bottom of the positioning block 31 abuts against the top of the clamping block 2, thereby limiting the clamping block 2, and then the user presses the retaining ring 33 on the top of the limiting ring 3, and makes the threaded ring 32 pass through the inner side of the limiting ring 3, and then the user rotates the threaded ring 32, so that the outer side of the threaded ring 32 and the inner side of the thread groove 12 are threadedly connected, thereby pressing the retaining ring 33 against the top of the limiting ring 3, at this time, the positioning block 31 installed at the bottom of the limiting ring 3 limits the clamping block 2 to increase stability.

[0037] Compared with the related art, the brushless motor stator assembly provided by the utility model which is easy to maintain has the following beneficial effects:

[0038] By means of the cooperation of structures such as the clamping groove 11, the thread groove 12, the clamping block 2, the limiting ring 3, the positioning block 31, the thread ring 32 and the retaining ring 33, when in use, the thread ring 32 is threadedly connected to the inner side of the thread groove 12, and then the retaining ring 33 drives the limiting ring 3 and the positioning block 31 to move downward, so that the bottom of the positioning block 31 is pressed against the top of the clamping block 2, thereby increasing the stability of the connection between the stator core 22 and the inner ring 1.

[0039] Second embodiment

[0040] Please refer to Figure 5 Based on the brushless motor stator assembly that is easy to maintain provided by the first embodiment of the present application, the second embodiment of the present application provides another brushless motor stator assembly that is easy to maintain. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0041] Specifically, the difference of the brushless motor stator assembly that is easy to maintain provided in the second embodiment of the present application is that, in the brushless motor stator assembly that is easy to maintain, a connecting groove 4 is provided on the top of the positioning block 31, and a connecting strip 41 is provided on the inner side surface of the connecting groove 4.

[0042] A wear-resistant pad 42 is fixedly mounted on the top of the connecting strip 41 .

[0043] The bottom of the wear-resistant pad 42 is arranged on the top of the positioning block 31 .

[0044] The working principle of the brushless motor stator assembly provided by the utility model which is easy to maintain is as follows:

[0045] When in use, the connecting strip 41 is inserted into the inner side of the connecting groove 4, and then the bottom of the wear-resistant pad 42 is abutted against the top of the positioning block 31 to install the wear-resistant pad 42, and then one side of the wear-resistant pad 42 is abutted against the top of the clamping block 2 to avoid direct contact between the positioning block 31 and the clamping block 2 to cause wear.

[0046] Compared with the related art, the brushless motor stator assembly provided by the utility model which is easy to maintain has the following beneficial effects:

[0047] By cooperating with each other through the connecting groove 4, the connecting strip 41, the wear-resistant pad 42 and other structures, the wear-resistant pad 42 and the clamping block 2 are in contact during use, thereby avoiding direct contact between the positioning block 31 and the clamping block 2, thereby avoiding wear and tear, and playing a protective role.

[0048] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A brushless motor stator assembly that is easy to maintain, characterized in that: include: An inner ring, wherein a thread groove is formed on the top of the inner side surface of the inner ring, and a plurality of clamping grooves are formed on the outer side surface of the inner ring; A plurality of clamping blocks, wherein the plurality of clamping blocks are respectively clamped to the inner side surfaces of the plurality of clamping grooves, an insulating portion is fixedly mounted on one side of the plurality of clamping blocks, and a stator core is fixedly mounted on one end of the insulating portion; A limiting ring is arranged at the top of the inner ring, a plurality of positioning blocks are provided at the bottom of the limiting ring, a retaining ring is arranged at the top of the limiting ring, and a threaded ring is fixedly installed at the bottom of the retaining ring.

2. The brushless motor stator assembly that is easy to maintain according to claim 1, characterized in that: The plurality of positioning blocks are respectively arranged on the inner side surfaces of the plurality of clamping grooves, and the bottoms of the plurality of positioning blocks are arranged on the tops of the plurality of clamping blocks.

3. The brushless motor stator assembly that is easy to maintain according to claim 1, characterized in that: The thread ring is arranged on the inner side surface of the limiting ring, and the outer side surface of the thread ring is threadedly connected to the inner side surface of the thread groove.

4. The brushless motor stator assembly that is easy to maintain according to claim 1, characterized in that: A convex strip is fixedly mounted on one side of the stator core, and a groove is fixedly mounted on the other side of the stator core.

5. The brushless motor stator assembly that is easy to maintain according to claim 1, characterized in that: A connecting groove is provided on the top of the positioning block, and a connecting strip is provided on the inner side of the connecting groove.

6. The brushless motor stator assembly that is easy to maintain according to claim 5, characterized in that: A wear-resistant pad is fixedly installed on the top of the connecting strip.

7. The brushless motor stator assembly that is easy to maintain according to claim 6, characterized in that: The bottom of the wear-resistant pad is arranged on the top of the positioning block.

Images