Electric corrosion terminal connecting structure

Abstract

The utility model relates to the technical field of motors, in particular to an electric corrosion terminal connecting structure which is used between an end cover of a motor and a motor stator, a stator contact pin is installed on the motor stator, an electric corrosion terminal is installed between the end cover and the stator contact pin, an end cover groove is formed in one side, close to the motor stator, of the end cover, and the electric corrosion terminal is connected with the end cover groove. The bottom of the electric corrosion terminal is connected with the stator pin in an inserted mode, the top of the electric corrosion terminal is provided with a first extending part, and at least part of the first extending part abuts against the groove bottom wall of the end cover groove. The electric corrosion terminal and the stator pin are assembled in a plugging mode, welding is not needed, the assembling efficiency is improved, the first extension part at least partially abuts against the groove bottom wall of the end cover groove, the first extension part is in direct contact with the plane part of the bottom wall of the motor end cover groove, the problem that the size of an R angle is unstable is avoided, and the reliability of the motor is improved. The reliability of connection between the contact pin and the motor end cover is ensured, and the first-pass yield of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a kind of electric erosion terminal connecting structure. BACKGROUND

[0002] Currently, the end cover and the electric erosion pin between motor stator are connected by a terminal sleeve on the pin, and then the terminal and the pin are welded together using a soldering iron, after the motor is assembled, the electric erosion terminal bending part contacts the R angle part of the motor end cover to form conduction;

[0003] The current electric erosion terminal structure has the following problems:

[0004] The electric erosion terminal design is unreasonable, which affects the soldering operation, and the staff operation is difficult and cannot use automatic laser soldering equipment.

[0005] Due to the difference of the R angle of the motor end cover and the deformation of the terminal bending part, the electric erosion conduction problem is prone to occur. INVENTION CONTENTS

[0006] The utility model aims at solving the problems pointed out in the background art, and provides an electric erosion terminal connecting structure.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] An electric erosion terminal connecting structure is used between the end cover of a motor and the motor stator, the motor stator is provided with a stator pin, the electric erosion terminal is installed between the end cover and the stator pin, the side of the end cover close to the motor stator has an end cover groove, the bottom of the electric erosion terminal is inserted into the stator pin, the top of the electric erosion terminal has a first extension, and the first extension at least partially abuts against the groove bottom wall of the end cover groove.

[0009] The electric erosion terminal includes a main plate, the first extension is integrally formed on the top of the main plate, and the top end of the first extension protrudes from the end surface of the motor stator in a natural state.

[0010] The first extension is bent and formed from the upper part of the main plate along the y axis, and the included angle between the first extension and the main plate is greater than ninety degrees and less than one hundred and eighty degrees.

[0011] The side of the main plate abuts against the first inner wall of the motor stator.

[0012] The electric erosion terminal includes a second extension integrally formed on the bottom of the main plate, the second extension has a slot with an open bottom, and the stator pin is at least partially inserted into the slot.

[0013] The slot comprises a main slot opening and a flared portion, and the stator pin is at least partially in interference fit with the main slot opening.

[0014] The second extension is formed by bending the lower part of the main plate along the z-axis.

[0015] The second extension comprises a first bending portion and a second bending portion, the first bending portion is formed by bending the main plate along the z-axis, and the second bending portion is formed by bending the bottom end of the first bending portion along the x-axis, and the opening of the slot is located at the bending position of the first bending portion and the second bending portion.

[0016] The bottom surface of the bending position of the first bending portion and the second bending portion protrudes from the bottom surface of the main plate.

[0017] The electric erosion terminal and the stator pin of the device are assembled in a plug-in manner, without welding, improving the assembly efficiency, and because the first extension at least partially abuts against the groove bottom wall of the end cover groove, the first extension directly contacts the plane part of the groove bottom wall of the motor end cover, avoiding the problem of unstable R angle size, ensuring the reliability of the connection between the pin and the motor end cover, and improving the first-time qualification rate of the product. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a cooperation structure schematic view of the electric erosion terminal, the end cover and the stator pin of the utility model;

[0019] Figure 2 It is a three-dimensional structure schematic view of the electric erosion terminal of the utility model;

[0020] Figure 3 It is a structure schematic view of the end cover and the stator of the utility model;

[0021] Figure 4 It is a front view structure schematic view of the electric erosion terminal of the utility model;

[0022] Figure 5 It is a left view structure schematic view of the electric erosion terminal of the utility model.

[0023] In the figure: end cover 1, end cover groove 2, motor stator 3, stator pin 4, first inner wall 5, end face 6, groove bottom wall 7, main plate 8, first extension 9, second extension 10, slot 11, electric erosion terminal 12, first bending portion 101, second bending portion 102, main slot opening 111, flared portion 112. DETAILED DESCRIPTION

[0024] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment.

[0025] Referring to Figures 1-5 A kind of electric erosion terminal connection structure, for the end cover 1 of motor and motor stator 3 between, motor stator 3 is installed with stator pin 4, electric erosion terminal 12 is installed between end cover 1 and stator pin 4, end cover 1 side close to motor stator 3 has end cover groove 2, electric erosion terminal 12 bottom and stator pin 4 are inserted, electric erosion terminal 12 top has first extension 9, first extension 9 at least part abuts the groove bottom wall 7 of end cover groove 2.

[0026] Referring to Figure 1 Electric erosion terminal of the device and stator pin 4 are assembled in the way of insertion, do not need to be welded, improve the assembly efficiency, and since first extension 9 at least part abuts the groove bottom wall 7 of end cover groove 2, first extension 9 and motor end cover groove bottom wall 7 plane portion directly contact, avoid R angle size unstable problem, guarantee the reliability of the connection between pin and motor end cover, improve product first pass rate.

[0027] As an implementation mode, electric erosion terminal 12 includes main body plate 8, first extension 9 is integrally formed on the top of main body plate 8, and the top end of first extension 9 protrudes from the end surface 6 of motor stator 3 in a natural state, the main body plate 8 and the first extension 9 of the device are integrally formed, which is stable in structure and convenient to manufacture, and the top end of the first extension 9 protrudes from the end surface 6 of the motor stator 3, so that the stability of the contact between the first extension 9 and the groove bottom wall 7 of the end cover groove 2 can be ensured during assembly.

[0028] As an implementation mode, the first extension 9 is bent and formed from the upper part of the main body plate 8 along the y-axis, and the included angle between the first extension 9 and the main body plate 8 is greater than ninety degrees and less than one hundred and eighty degrees, which is set as an obtuse angle, so that the first extension 9 and the main body plate 8 have better elasticity, and the stability of the contact between the electric erosion terminal 12 and the end cover 1 is further improved.

[0029] The side of the main body plate 8 abuts against the first inner wall 5 of the motor stator 3, improving the stability of assembly.

[0030] Referring to Figure 2 Electric erosion terminal 12 includes second extension 10 integrally formed on the bottom of main body plate 8, second extension 10 has insertion slot 11 with open bottom, and stator pin 4 is at least partially inserted into insertion slot 11, and main body plate 8 and second extension 10 are integrally formed, which is stable in structure and convenient to manufacture.

[0031] Referring to Figure 2The slot 11 comprises a main slot 111 and a flared portion 112, the stator pin 4 is at least partially in interference fit with the main slot 111, and the whole slot 11 is in a horn structure, facilitating insertion.

[0032] As a forming mode, the second extending part 10 is bent along the z axis at the lower part of the main plate 8; further, the second extending part 10 comprises a first bending part 101 and a second bending part 102, the first bending part 101 is bent along the z axis at the main plate 8, the second bending part 102 is bent along the x axis at the bottom end of the first bending part 101, and the opening of the slot 11 is located at the bending position of the first bending part 101 and the second bending part 102.

[0033] The whole electric erosion terminal 12 is integrally bent and formed, and has good structural integrity, facilitating manufacturing and stable connection.

[0034] The bottom surface of the bending position of the first bending part 101 and the second bending part 102 protrudes from the bottom surface of the main plate 8, so that the second extending part 10 is preferentially contacted with the stator pin 4, improving the convenience of assembly.

[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can obtain technical solutions, concepts and designs according to the technical scheme and concept of the present application within the technical range disclosed by the present application, by equivalent replacement or change, which should be covered in the protection scope of the present application.

Claims

1. An electrically etched terminal connection structure for between an end cover (1) of an electric machine and a stator (3) of the electric machine, a stator pin (4) being mounted on the stator (3) of the electric machine, characterized in that, The electric erosion terminal (12) is installed between the end cover (1) and the stator pin (4), the end cover (1) has an end cover groove (2) near the side of the motor stator (3), the bottom of the electric erosion terminal (12) is inserted with the stator pin (4), and the top of the electric erosion terminal (12) has a first extension (9) which is at least partially abuts against the groove bottom wall (7) of the end cover groove (2).

2. An electro-etch terminal connection structure according to claim 1, wherein The electric erosion terminal (12) comprises a main plate (8), the first extension (9) is integrally formed on the top of the main plate (8), and the top end of the first extension (9) protrudes from the end surface (6) of the motor stator (3) in a natural state.

3. An electro-etch terminal connection structure according to claim 2, wherein The first extension (9) is bent and formed on the upper part of the main plate (8) along the y-axis, the first extension (9) and the main plate (8) form an angle greater than ninety degrees and less than one hundred and eighty degrees.

4. An electro-etch terminal connection structure according to claim 2 or 3, wherein The main plate (8) is abutted against the first inner wall (5) of the motor stator (3) on one side.

5. An electro-etch terminal connection structure according to claim 2 or 3, wherein The electric erosion terminal (12) comprises a second extension (10) integrally formed on the bottom of the main plate (8), the second extension (10) has a slot (11) with an open bottom, and the stator pin (4) is at least partially inserted into the slot (11).

6. An electro-etch terminal connection structure according to claim 5, wherein The slot (11) comprises a main slot (111) and a flared portion (112) which are communicated, and the stator pin (4) is at least partially in interference fit with the main slot (111).

7. An electro-etch terminal connection structure according to claim 5, wherein The second extension (10) is bent and formed on the lower part of the main plate (8) along the z-axis.

8. An electro-etch terminal connection structure according to claim 7, wherein The second extension (10) comprises a first bending portion (101) and a second bending portion (102) which are arranged in parallel, the first bending portion (101) is bent and formed on the main plate (8) along the z-axis, the second bending portion (102) is bent and formed on the bottom end of the first bending portion (101) along the x-axis, and the opening of the slot (11) is located at the bending position of the first bending portion (101) and the second bending portion (102).

9. An electro-etch terminal connection structure according to claim 8, wherein The bottom surface of the bending position of the first bending portion (101) and the second bending portion (102) protrudes from the bottom surface of the main plate (8).

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