CN219181250U

CN219181250U - Brushless motor stator assembly

Info

Publication number: CN219181250U
Application number: CN202223438062.XU
Authority: CN
Inventors: 王华媛
Original assignee: Changzhou Microtech Motor Co ltd
Current assignee: Changzhou Microtech Motor Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-13
Anticipated expiration: 2032-12-21

Abstract

The utility model provides a brushless motor stator assembly, which comprises an inner ring and an outer ring, wherein the outer wall of the upper end of the inner ring is provided with a limiting groove which is recessed inwards, the outer wall of the outer side of the inner ring is provided with a connecting groove which is communicated with the limiting groove, the outer ring is positioned at the outer side of the inner ring, the outer ring comprises a plurality of stator cores, the stator cores are in circular matching connection arrangement, the inner side of each stator core is connected with an insulating framework, one side, close to the inner ring, of the insulating framework is connected with a connecting block which is matched with the connecting groove, and the other side of the connecting block is connected with a limiting block which is matched with the limiting groove; according to the utility model, through the plurality of stator cores, the stator cores are connected with the inner ring through the connected insulating frameworks, so that the stator assembly is convenient to disassemble and install, and the stator assembly is convenient to partially disassemble and maintain.

Description

Brushless motor stator assembly

Technical Field

The utility model relates to the technical field of brushless motors, in particular to a brushless motor stator assembly.

Background

The brushless DC motor adopts electronic commutation, has no commutator and carbon brush, but uses a position sensor which mainly comprises a permanent magnet rotor, a multipole winding stator, a position sensor and the like, and the position sensor electrifies adjacent stator coils according to the position magnetic poles of the rotor, so that the stator generates magnetic poles attracted with the rotor, the rotor can be attracted to rotate, and the motor can be pushed to rotate repeatedly.

The stator core of the current brushless direct current motor is of an integrated structure, is affected by machining precision and is inconvenient to locally disassemble and maintain, so that a brushless motor stator assembly is provided.

Disclosure of Invention

In order to achieve the above purpose, the utility model provides a brushless motor stator assembly, which comprises an inner ring and an outer ring, wherein the outer wall of the upper end of the inner ring is provided with a limiting groove which is recessed inwards, the outer wall of the outer side of the inner ring is provided with a connecting groove which is communicated with the limiting groove, the outer ring is positioned at the outer side of the inner ring, the outer ring comprises a plurality of stator iron cores, the stator iron cores are in circular matching connection arrangement, the inner side of each stator iron core is connected with an insulating framework, one side, close to the inner ring, of the insulating framework is connected with a connecting block which is matched with the connecting groove, and the other side of the connecting block is connected with a limiting block which is matched with the limiting groove.

Preferably, the outer wall of the inner ring is provided with a plurality of horizontal planes.

Preferably, the cross section of the inner ring is matched with the horizontal surface to form polygonal arrangement.

Preferably, the cross section of the connecting groove and the limit groove which are connected with each other is in T-shaped arrangement.

Preferably, one side of the insulating framework far away from the stator core is provided with an attaching surface.

Preferably, a groove is formed in one end face of the stator core.

Preferably, one end of the other end face of the stator core is provided with a protrusion which is matched with the groove.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the plurality of stator cores, the stator cores are connected with the inner ring through the connected insulating frameworks, so that the stator assembly is convenient to disassemble and install, and the stator assembly is convenient to partially disassemble and maintain.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic top view of the inner ring of the present utility model;

fig. 3 is a schematic top view of a stator core according to the present utility model.

In the figure: 1. an inner ring; 2. an outer ring; 11. a connecting groove; 12. a limit groove; 13. a horizontal plane; 21. a stator core; 22. an insulating skeleton; 211. a protrusion; 212. a groove; 221. a connecting block; 222. a limiting block; 223. and (5) an attaching surface.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

The present utility model will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1-3, the utility model provides a brushless motor stator assembly, which comprises an inner ring 1 and an outer ring 2, wherein an inward concave limit groove 12 is arranged on the outer wall of the upper end of the inner ring 1, a connecting groove 11 communicated with the limit groove 12 is arranged on the outer wall of the outer side of the inner ring 1, the outer ring 2 is positioned on the outer side of the inner ring 1, the outer ring 2 comprises a plurality of stator iron cores 21, the stator iron cores 21 are in circular matching connection arrangement, an insulating framework 22 is connected on the inner side of each stator iron core 21, a connecting block 221 which is matched with the connecting groove 11 is connected on one side, close to the inner ring 1, of the insulating framework 22, and a limiting block 222 which is matched with the limit groove 12 is connected on the other side of the connecting block 221; according to the utility model, through the plurality of stator iron cores 21, the stator iron cores 21 are connected with the inner ring 1 through the connected insulating framework 22, so that the stator assembly is convenient to disassemble and install, and the stator assembly is convenient to partially disassemble and maintain.

Referring to fig. 1-3, the outer wall of the inner ring 1 is provided with a plurality of horizontal planes 13, the cross section of the inner ring 1 is arranged in a polygonal shape in cooperation with the horizontal planes 13, the cross section of the connection groove 11 and the cross section of the connection groove 12, which are mutually connected, are arranged in a T shape, one side of the insulating framework 22, which is far away from the stator core 21, is provided with an attaching surface 223, one end surface of the stator core 21 is provided with a groove 212, and one end of the other end surface of the stator core 21 is provided with a protrusion 211 which is in fit with the groove 212; the protrusions 211 and the grooves 212 arranged on the stator core 21 facilitate direct contact connection of the stator core 21, and improve direct stability.

The specific operation mode of the first embodiment of the utility model is as follows:

when the stator assembly is used, firstly one stator core 21 is connected to the outer wall of the inner ring 1, during installation, the limiting block 222 corresponds to the limiting groove 12 and moves downwards, the limiting block 222 is located inside the limiting groove 12, the connecting block 221 stretches into the connecting groove 11, the joint surface 223 arranged on the insulating framework 22 is completely in contact with the horizontal plane 13, the first stator core 21 is installed, then the second stator core 21 is installed, the third stator core 21 is in contact with the first stator core 21, the protrusions 211 between every two stator cores 21 are connected with the grooves 212, stator assembly is completed, and the stator assembly is convenient to disassemble and maintain locally.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims

1. A brushless motor stator assembly, characterized in that: including inner circle (1) and outer lane (2), inner circle (1) upper end outer wall is equipped with limiting groove (12) of inside concave yield, inner circle (1) outside outer wall is equipped with connecting groove (11) with limiting groove (12) intercommunication, outer lane (2) are located the inner circle (1) outside, outer lane (2) include a plurality of stator core (21), a plurality of stator core (21) are circular cooperation connection arrangement, every stator core (21) inboard all is connected with insulating skeleton (22), insulating skeleton (22) are close to one side of inner circle (1) be connected with connecting block (221) that connecting groove (11) agreed with, connecting block (221) opposite side is connected with stopper (222) that agree with limiting groove (12).

2. A brushless motor stator assembly as claimed in claim 1, wherein: the outer wall of the inner ring (1) is provided with a plurality of horizontal planes (13).

3. A brushless motor stator assembly as claimed in claim 2, wherein: the cross section of the inner ring (1) is matched with the horizontal plane (13) to form polygonal arrangement.

4. A brushless motor stator assembly as claimed in claim 1, wherein: the cross section of the connecting groove (11) and the limit groove (12) which are connected with each other is in T-shaped arrangement.

5. A brushless motor stator assembly as claimed in claim 1, wherein: one side of the insulating framework (22) far away from the stator core (21) is provided with a bonding surface (223).

6. A brushless motor stator assembly as claimed in claim 1, wherein: a groove (212) is formed in one end face of the stator core (21).

7. A brushless motor stator assembly as claimed in claim 6, wherein: one end of the other end face of the stator core (21) is provided with a protrusion (211) which is matched with the groove (212).