CN220692903U - Terminal seat and brushless motor - Google Patents

Abstract

The utility model provides a brushless motor's terminal seat, it includes the insulator and by the terminal that the insulator kept, the terminal includes main part, set up in the welding part of main part one end and set up in the collude line portion of main part other end, the welding part disposes to be connected with the power cord, collude line portion disposes the winding wire of winding brushless motor, main part includes the basal portion and forms the deformation portion from the basal portion punching press, basal portion and deformation portion form the space, the insulator is including extending to the embedded part in the space.

Description

Terminal seat and brushless motor

Technical Field

The application relates to the field of electric tools, in particular to a terminal block and a brushless motor.

Background

The brushless motor includes stator winding, outer lead wire and is used for connecting the terminal block of outer lead wire and stator winding's winding wire, and at present, the connection mode of brushless motor's outer lead wire and stator winding's winding wire on the market mainly has following two kinds: (1) The outer lead wire is in solder connection with the winding wire of the stator winding; (2) The external lead wire is connected with the winding wire of the stator winding through the terminal seat. How to simplify the production process, save the cost and improve the yield is a technical problem to be solved.

Disclosure of Invention

The application provides a terminal block and brushless motor convenient to automated production, cost are lower and yield is high.

Specifically, the application provides a terminal block of brushless motor, it includes the insulator and by the terminal that the insulator kept, the terminal include main part, set up in the welding part of main part one end and set up in the collude line portion of main part other end, the welding part is configured to be connected with the power cord, collude line portion and be configured to twine brushless motor's winding wire, main part include the basal portion and from the deformation portion that the basal portion punching press formed, the basal portion with deformation portion forms the space, the insulator is including extending to the embedded part in the space.

Further, the base is in a flat plate shape and is provided with a through hole, the through hole is provided with a first edge and a second edge which are oppositely arranged along a first direction, the base comprises a first sub-base and a second sub-base which are positioned at two sides of the through hole along the first direction, the first sub-base is positioned at one side where the first edge is positioned, the second sub-base is positioned at one side where the second edge is positioned, the deformation part comprises a base part, a first bending part which is bent and extended from one end of the base part and a second bending part which is bent and extended from the other end of the base part, the first bending part is integrally connected with the first sub-base, the second bending part is integrally connected with the second sub-base, and the base part and the through hole are oppositely arranged along a second direction, wherein the second direction is perpendicular to the first direction.

Further, the through hole is rectangular, and the first edge and the second edge are short edges which are oppositely arranged.

Further, the hooking portion and the welding portion are disposed opposite to each other along the first direction, and the hooking portion and the welding portion are disposed at a side of the base portion along the second direction away from the deformation portion.

Further, the width of the base portion along a third direction is greater than the width of the hooking portion along the third direction, wherein the third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

Further, the welding portion extends obliquely from one end of the base portion toward a direction away from the hooking portion with respect to the base portion.

Further, the terminal seat comprises at least two terminals, and the at least two terminals are arranged in parallel.

Further, the welding portion is provided with a through hole.

Further, the insulator covers the deformation portion.

The application provides a brushless motor, including:

a stator assembly including a stator core and a winding wire wound onto the stator core;

a rotor assembly including a rotor shaft extending in a first direction;

a power line;

further comprises:

a terminal block according to any one of the preceding claims, the terminal block comprising an insulator and a terminal held by the insulator, the terminal being for connecting or fixing the winding wire with the power supply wire.

The deformation portion of the terminal block is formed through a stamping forming process, specifically, the main body portion of the terminal comprises a base portion and a deformation portion formed by stamping from the base portion, the base portion and the deformation portion form a space, and the insulator of the terminal block comprises an embedded portion extending into the space. On the one hand, the stamping forming process is simple in procedure, less in material consumption and high in yield, and on the other hand, the deformation part is coated by the insulator, so that the terminal can be more firmly held on the insulator.

Drawings

Fig. 1 is a schematic structural view of a brushless motor of the present application.

Fig. 2 is a cross-sectional view of the brushless motor shown in fig. 1.

Fig. 3 is a schematic view of the structure of the terminal block shown in fig. 1.

Fig. 4 is a schematic view of the structure of the terminal shown in fig. 3.

Fig. 5 is a schematic view of the terminal shown in fig. 4 from another view.

Fig. 6 is a cross-sectional view of the terminal shown in fig. 5.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, the present application provides a brushless motor 100, which includes a stator assembly 10, a rotor assembly 20, a power cord (not shown) and a terminal block 30, wherein the stator assembly 10 includes a stator core 11, a first insulating end plate 12, a second insulating end plate 13 and a winding wire (not shown) wound on the stator core 11, the rotor assembly 20 includes a rotor shaft 21 extending along a first direction X, the first insulating end plate 12 and the second insulating end plate 13 are arranged along the first direction X, the terminal block 30 includes an insulator 31 and a terminal 32 held by the insulator 31, and the terminal 32 is used for connecting or fixing the winding wire and the power cord. In the present embodiment, the terminal block 30 includes three of the terminals 32, and the three terminals 32 are held by the insulator 31 and are arranged in parallel.

The terminal 32 includes a main body 321, a welding portion 322 disposed at one end of the main body 321, and a wire hooking portion 323 disposed at the other end of the main body 321, wherein the welding portion 322 is configured to be connected to a power wire, and the wire hooking portion 323 is configured to wind a winding wire of the brushless motor 100. The welding portion 322 is provided with a through hole 324. The body 321 includes a base 325 and a deformation 326 punched from the base 325, the base 325 and the deformation 326 form a space S, and the insulator 31 includes an insertion portion 310 extending into the space S.

The hooking portion 323 and the welding portion 322 are disposed opposite to each other along the first direction X, and the hooking portion 323 and the welding portion 322 are disposed on a side of the base 325 away from the deformation portion 326 along the second direction Y, wherein the second direction Y is perpendicular to the first direction X. The welding portion 322 extends obliquely from one end of the base portion 325 in a direction away from the hooking portion 323 with respect to the base portion 325.

The base 325 is flat and has a through hole 320, and the through hole 320 has a first edge 3201 and a second edge 3202 opposite to each other along the first direction X. The through hole 320 has a rectangular shape, and the first edge 3201 and the second edge 3202 are short edges disposed opposite to each other. The base portion 325 includes a first sub-portion 3251 and a second sub-portion 3252 located on both sides of the through hole 320 along the first direction X. The first sub-portion 3251 is located on the side of the first edge 3201, and the second sub-portion 3252 is located on the side of the second edge 3202.

The deformation portion 326 includes a base portion 327, a first bending portion 328 bent and extended from one end of the base portion 327, and a second bending portion 329 bent and extended from the other end of the base portion 327. The first bending portion 328 is integrally connected to the first sub-portion 3251, and the second bending portion 329 is integrally connected to the second sub-portion 3252. The base portion 327 and the through hole 320 are disposed to face each other in the second direction Y. In the present embodiment, the deformation portion 326 has a substantially C-shape.

The deformed portion 326 of the terminal 32 is covered with the insulator 31, so that the terminal 32 can be more firmly held to the insulator 31.

The width of the base portion 325 along the third direction Z is greater than the width of the hooking portion 323 along the third direction Z, wherein the third direction Z is perpendicular to the first direction X and the third direction Z is perpendicular to the second direction Y.

The deformation 326 is formed by a press forming process, and specifically, the deformation 326 is formed by pressing from the base 325. The stamping forming process has simple process, less material consumption and high yield.

The foregoing description is only a preferred embodiment of the present application, and is not intended to limit the utility model to the particular embodiment disclosed, but is not intended to limit the utility model to the particular embodiment disclosed, as the equivalent of some alterations or modifications can be made without departing from the scope of the present application.

Claims (10)

1. The utility model provides a brushless motor's terminal seat, its includes the insulator and by the terminal that the insulator kept, the terminal include main part, set up in the welding part of main part one end and set up in the collude line portion of main part other end, the welding part is configured to be connected with the power cord, collude line portion and be configured to twine brushless motor's winding wire, characterized in that, main part includes the basal portion and from the deformation portion that the basal portion punching press formed, the basal portion with deformation portion forms the space, the insulator includes the embedded part that extends to in the space.

2. The terminal block according to claim 1, wherein the base portion is flat and is provided with a through hole, the through hole has a first edge and a second edge which are oppositely arranged along a first direction, the base portion includes a first sub-base portion and a second sub-base portion which are located at two sides of the through hole along the first direction, the first sub-base portion is located at one side of the first edge, the second sub-base portion is located at one side of the second edge, the deformation portion includes a base portion, a first bending portion bending and extending from one end of the base portion, and a second bending portion bending and extending from the other end of the base portion, the first bending portion is integrally connected to the first sub-base portion, the second bending portion is integrally connected to the second sub-base portion, and the base portion and the through hole are oppositely arranged along a second direction, wherein the second direction is perpendicular to the first direction.

3. The terminal block of claim 2, wherein the through hole is rectangular, and the first edge and the second edge are short edges disposed opposite to each other.

4. The terminal block according to claim 2, wherein the wire hooking portion and the welding portion are disposed opposite to each other in the first direction, and the wire hooking portion and the welding portion are disposed on a side of the base portion facing away from the deformation portion in the second direction.

5. The terminal block of claim 2, wherein a width of the base portion in a third direction is greater than a width of the wire hooking portion in the third direction, wherein the third direction is perpendicular to the first direction and the third direction is perpendicular to the second direction.

6. The terminal block according to claim 1, wherein the welding portion extends obliquely from one end of the base portion toward a direction away from the wire hooking portion with respect to the base portion.

7. The terminal block of claim 1, wherein the terminal block comprises at least two of the terminals, the at least two of the terminals being disposed in parallel.

8. The terminal block according to claim 1, wherein the solder portion is provided with a through hole.

9. The terminal block according to claim 1, wherein the insulator covers the deformed portion.

10. A brushless motor, comprising:

a stator assembly including a stator core and a winding wire wound onto the stator core;

a rotor assembly including a rotor shaft extending in a first direction;

a power line;

characterized by further comprising:

a terminal block according to any one of claims 1 to 9, comprising an insulator and a terminal held by the insulator for connecting or fixing the winding wire with the power supply wire.