CN220628135U

CN220628135U - Connection piece convenient to installation

Info

Publication number: CN220628135U
Application number: CN202322248612.XU
Authority: CN
Inventors: 陈通明; 刘甘伦; 黄庆顺
Original assignee: Yueqing Weili Copper Parts Co ltd
Current assignee: Yueqing Weili Copper Parts Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-03-19
Anticipated expiration: 2033-08-21

Abstract

The utility model relates to the technical field of power battery connecting parts, in particular to a connecting sheet convenient to install, which comprises: the connecting belt is used for installing the connecting assembly and transmitting current; further comprises: the top cover comprises a plurality of contact pieces, and the contact pieces are contacted with the battery electrodes; the bottom cover comprises two sliding grooves, and each sliding groove is matched with the connecting belt; the clamping box comprises a clamping spring, a clamping rod is arranged at the end part of the clamping spring, and the clamping rod is in contact with the battery electrode. According to the utility model, the clamping box is arranged below the bottom cover, the limiting sleeve is sleeved on the battery cell electrode, the clamping spring is matched with the clamping rod to clamp the electrode of the battery cell, the bottom cover is fixed, the subsequent welding is convenient, the welding quality is improved, the connecting belt is placed in the sliding groove and connected with the bottom cover in a clamping manner, the connecting belt can be fixed, the connection of a plurality of battery cells is realized, the interval between the battery cells is not required to be adjusted, and the installation difficulty is reduced.

Description

Connection piece convenient to installation

Technical Field

The utility model relates to the technical field of power battery connecting parts, in particular to a connecting sheet convenient to install.

Background

The power battery generally refers to an energy supply battery of an electric automobile, also called a battery pack, and the battery pack is an integral formed by jointly controlling or managing a plurality of modules by the BMS and a thermal management system; the module is that after a plurality of battery cells are packaged together by the same shell frame, the module is connected with the outside through a uniform boundary. The plurality of battery cells are packaged uniformly and are connected with the outside by uniform boundaries, so that the plurality of battery cells need to be connected in parallel or in series, and the device for connecting the plurality of battery cells is a connecting sheet.

The existing connecting sheet is generally a strip plated with nickel, pure nickel or steel and is connected with the battery cell in a welding mode, and the electrode of the battery cell cannot be guaranteed to be positioned in the middle of the connecting sheet during welding, so that the possibility of cold joint exists. The round hole is punched on the connecting piece, the elastic piece is reserved in the round hole, the round hole is utilized to position and then weld, but the distance between punching holes is designed independently according to the size of the battery core and the different stacking modes, the stacking modes of the battery core can be limited by the fixed hole distance, in addition, the battery core can be attached by glue when being stacked, the distance between the battery cores can be different, the connecting piece with the fixed hole distance can not be completely sleeved on the battery core during installation, and therefore installation is difficult.

In view of this, we propose a connection piece that is easy to install.

Disclosure of Invention

In order to overcome the defects of insufficient soldering and difficult installation in the background technology, the utility model provides a connecting sheet convenient to install.

The technical scheme of the utility model is as follows:

a connection tab for ease of installation comprising:

a connection strap for mounting the connection assembly and transmitting current;

further comprises:

a top cover including a plurality of contact pieces, the contact pieces being in contact with the battery electrodes;

the bottom cover comprises two sliding grooves, and each sliding groove is matched with the connecting belt;

the clamping box comprises a clamping spring, a clamping rod is arranged at the end part of the clamping spring, and the clamping rod is in contact with a battery electrode.

As the preferable technical scheme of the utility model, the top cover further comprises an upper cover plate, a plurality of elastic sheets are arranged in the middle of the upper cover plate, and the tail end of each elastic sheet is connected with one contact piece.

As the preferable technical scheme of the utility model, the left end and the right end of the upper cover plate are provided with upper bent buckles, the upper bent buckles are downwards bent, the tail parts of the upper bent buckles are upper bent parts, and the sliding grooves are inserted into the upper bent buckles.

As the preferable technical scheme of the utility model, a bottom cover plate is arranged between the sliding grooves, a circular through hole is arranged in the middle of the bottom cover plate, and the clamping box is positioned below the circular through hole.

As the preferable technical scheme of the utility model, the lower bending buckles are arranged on the front side and the rear side of the bottom cover plate and between the sliding grooves, the lower bending buckles are contacted with the upper cover plate after being bent upwards, and the end parts of the lower bending buckles are lower bending parts.

As a preferable technical scheme of the utility model, the clamping box comprises a box body, wherein the box body is positioned in the middle of the bottom surface of the bottom cover plate, and the clamping spring is positioned on the inner bottom surface of the box body.

As the preferable technical scheme of the utility model, a limit sleeve is arranged in the center of the bottom surface of the inner side of the box body, the center of the limit sleeve is provided with a through hole, and the through hole penetrates through the bottom of the box body.

As the preferable technical scheme of the utility model, the bottom of the limit sleeve is symmetrically provided with the movable groove, and the clamping rod is positioned in the movable groove.

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

according to the utility model, the clamping box is arranged below the bottom cover, the limiting sleeve is sleeved on the battery cell electrode, the clamping spring is matched with the clamping rod to clamp the electrode of the battery cell, the bottom cover is fixed, the subsequent welding is convenient, the welding quality is improved, the connecting belt is placed in the sliding groove and connected with the bottom cover in a clamping manner, the connecting belt can be fixed, the connection of a plurality of battery cells is realized, the interval between the battery cells is not required to be adjusted, and the installation difficulty is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the top cover structure of the present utility model;

FIG. 3 is a schematic view of the bottom cover structure of the present utility model;

FIG. 4 is a schematic view of a clamping box according to the present utility model;

FIG. 5 is a schematic view of the whole cross-sectional structure of the present utility model.

The meaning of each reference numeral in the figures is:

1. a connecting belt;

2. a top cover; 21. an upper cover plate; 22. a spring plate; 23. a contact piece; 24. a bending buckle is arranged; 25. an upper bending part;

3. a bottom cover; 31. a bottom cover plate; 32. a sliding groove; 33. a lower bending buckle; 34. a lower bending part;

4. a clamping box; 41. a case body; 42. a limit sleeve; 43. a movable groove; 44. a clamping spring; 45. and a clamping rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, the present utility model is described in detail by the following embodiments:

a connection tab for ease of installation comprising:

a connection strap 1, said connection strap 1 being used for mounting a connection assembly and for transmitting electric current.

The connecting bands 1 are two, and are made of copper nickel plating materials.

Further comprises:

a top cover 2, the top cover 2 includes a plurality of contact pieces 23, and the contact pieces 23 are in contact with the battery electrodes. The top cover 2 further comprises an upper cover plate 21, a plurality of elastic pieces 22 are arranged in the middle of the upper cover plate 21, and the tail end of each elastic piece 22 is connected with a contact piece 23.

The top cover 2 is integrally made of copper and nickel plating materials through stamping, the contact piece 23 and the elastic piece 22 are formed by cutting after stamping to form grooves, and the number of the contact piece 23 and the elastic piece 22 is four.

The left and right ends of the upper cover plate 21 are provided with upper bent buckles 24, the upper bent buckles 24 are bent downwards, and the tail parts of the upper bent buckles 24 are upper bent parts 25.

The upper bent buckle 24 and the upper bent part 25 are integrally punched with the cover plate 21, and a gap is reserved between the adjacent upper bent buckles 24.

A bottom cover 3, said bottom cover 3 comprising two sliding grooves 32, each of said sliding grooves 32 being adapted to the connecting strip 1, said sliding grooves 32 being inserted in the upper clasp 24. A bottom cover plate 31 is arranged between the sliding grooves 32, and a circular through hole is formed in the middle of the bottom cover plate 31.

The bottom cover 3 is made of copper and nickel plating, the sliding groove 32 is formed by punching, the width of the sliding groove 32 is the same as the width of the connecting belt 1, and the depth of the sliding groove 32 is the same as the thickness of the connecting belt 1.

The bottom cover plate 31 is provided with a lower buckle 33 at the front and rear sides and between the sliding grooves 32, the lower buckle 33 is bent upward and then contacts with the upper cover plate 21, and the end of the lower buckle 33 is a lower bending part 34.

The lower bent buckle 33 and the lower bent part 34 are integrally formed with the bottom cover plate 31 by punching, and the lower bent buckle 33 buckles the front and rear side edges of the upper cover plate 21. A gap is left between the adjacent turndown buckles 33.

The clamping box 4, the clamping box 4 includes a clamping spring 44, a clamping rod 45 is arranged at the end part of the clamping spring 44, and the clamping rod 45 is in contact with a battery electrode. The clamping box 4 is located below the circular through hole. The clamping box 4 comprises a box body 41, the box body 41 is positioned in the middle of the bottom surface of the bottom cover plate 31, and the clamping spring 44 is positioned on the inner bottom surface of the box body 41.

The clamping box 4 and the bottom cover 3 are integrally formed by stamping. The clamping spring 44 and the clamping rod 45 are formed by bending steel materials into an integral molding, the clamping spring 44 is fixed at the bottom of the box body 41 by means of self elasticity, and the clamping spring 44 is propped against the bottom of the inner side surface of the box body 41.

The center of the bottom surface of the inner side of the box body 41 is provided with a limit sleeve 42, the center of the limit sleeve 42 is provided with a through hole, and the through hole penetrates through the bottom of the box body 41. The bottom of the limiting sleeve 42 is symmetrically provided with a movable groove 43, and the clamping rod 45 is clamped in the movable groove 43.

The battery cell electrode can be inserted into the limit sleeve 42 from the bottom of the box body 41, the electrode of the battery cell can jack the clamping rods 45 towards two sides in the inserting process, and the clamping rods 45 can clamp the battery cell electrode under the elastic force of the clamping springs 44, so that the bottom cover 3 and the clamping box 4 are fixed on the battery cell electrode.

When the device is used by an operator, the battery cells are stacked, then the through holes at the bottom of the box body 41 are aligned with the battery cell electrodes and sleeved on the battery cell electrodes until the battery cells cannot be inserted, and the battery cell electrodes are clamped by the clamping rods 45 at the moment, and the bottom cover 3 and the clamping box 4 are fixed on the battery cell electrodes. The positions of the bottom covers 3 are adjusted so that two adjacent bottom covers 3 are parallel. The cell electrodes are then welded to the stop collar 42. Then, the connecting belt 1 with proper length is cut according to the length of the battery pack, the connecting belt 1 is paved in the sliding groove 32, after the paving is finished, the top cover 2 is covered, the upper bent buckle 24 is ensured to buckle the edge of the sliding groove 32, and the lower bent buckle 33 is ensured to buckle the edge of the upper cover plate 21. At this time, the connecting band 1 is pressed in the sliding groove 32 by the upper cover plate 21, and the contact piece 23 is propped against the top end of the cell electrode.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A connection tab for ease of installation comprising:

a connection strip (1), the connection strip (1) being used for mounting a connection assembly and for transmitting an electric current;

characterized by further comprising:

a top cover (2), the top cover (2) comprising a plurality of contact pieces (23), the contact pieces (23) being in contact with the battery electrodes;

a bottom cover (3), the bottom cover (3) comprising two sliding grooves (32), each sliding groove (32) being adapted to a connecting band (1);

the clamping box (4), clamping box (4) are including clamping spring (44), clamping rod (45) are equipped with to clamping spring (44) tip, clamping rod (45) and battery electrode contact.

2. The easy to install tab of claim 1, wherein: the top cover (2) further comprises an upper cover plate (21), a plurality of elastic pieces (22) are arranged in the middle of the upper cover plate (21), and the tail end of each elastic piece (22) is connected with one contact piece (23).

3. The easy to install tab of claim 2, wherein: the left end and the right end of the upper cover plate (21) are provided with upper bent buckles (24), the upper bent buckles (24) are bent downwards, the tail parts of the upper bent buckles (24) are upper bent parts (25), and the sliding grooves (32) are inserted into the upper bent buckles (24).

4. A connection tab for facilitating attachment as defined in claim 3, wherein: a bottom cover plate (31) is arranged between the sliding grooves (32), a circular through hole is formed in the middle of the bottom cover plate (31), and the clamping box (4) is located below the circular through hole.

5. The easy to install tab of claim 4, wherein: the bottom cover plate (31) is provided with lower bent buckles (33) at the front side and the rear side and between the sliding grooves (32), the lower bent buckles (33) are bent upwards and then contact with the upper cover plate (21), and the end parts of the lower bent buckles (33) are lower bent parts (34).

6. A connection tab for facilitating attachment as defined in claim 3, wherein: the clamping box (4) comprises a box body (41), the box body (41) is located in the middle of the bottom surface of the bottom cover plate (31), and the clamping spring (44) is located on the inner bottom surface of the box body (41).

7. The easy to install tab of claim 6, wherein: the box body (41) is characterized in that a limiting sleeve (42) is arranged in the center of the bottom surface of the inner side of the box body (41), a through hole is formed in the center of the limiting sleeve (42), and the through hole penetrates through the bottom of the box body (41).

8. The easy to install tab of claim 7, wherein: the bottom of the limiting sleeve (42) is symmetrically provided with a movable groove (43), and the clamping rod (45) is positioned in the movable groove (43).