CN220971243U - Battery cell welding jig - Google Patents

Abstract

The utility model provides a battery cell welding jig, which comprises: the positioning seat is provided with a plurality of cell grooves which are arranged at intervals, and the cell grooves penetrate through the top wall of the positioning seat; the cover plate is arranged on the top wall of the positioning seat and is connected with the positioning seat, the connecting piece positioning groove is formed in the lower surface of the cover plate and located above the plurality of electric core grooves, a plurality of avoidance holes which penetrate through the cover plate and are communicated with the connecting piece positioning groove are formed in the cover plate, and the plurality of avoidance holes are in one-to-one correspondence with the plurality of electric core grooves. By the technical scheme provided by the utility model, the problem that the relative positions of the welded battery cell and the nickel sheet in the related technology are deviated can be solved.

Description

Battery cell welding jig

Technical Field

The utility model relates to the technical field of battery manufacturing, in particular to a battery cell welding jig.

Background

The battery module comprises a plurality of electric cores, and the electric cores are connected by connecting sheets, such as nickel sheets. Wherein, the nickel sheet and the battery core are connected by adopting a resistance welding mode. The plurality of connected cells can provide a suitable current for power.

In the related art, in order to facilitate the welding of the battery cell and the nickel plate, the battery cell is placed in a fixing jig to fix the battery cell, thereby performing the welding.

However, the jig in the related art does not accurately position the nickel sheet, so that a deviation exists between the relative positions of the welded battery cell and the nickel sheet.

Disclosure of utility model

The utility model provides a battery cell welding jig which is used for solving the problem that the relative positions of a welded battery cell and a nickel sheet in the related art are deviated.

The utility model provides a battery cell welding jig, which comprises: the positioning seat is provided with a plurality of cell grooves which are arranged at intervals, and the cell grooves penetrate through the top wall of the positioning seat; the cover plate is arranged on the top wall of the positioning seat and is connected with the positioning seat, the connecting piece positioning groove is formed in the lower surface of the cover plate and located above the plurality of electric core grooves, a plurality of avoidance holes which penetrate through the cover plate and are communicated with the connecting piece positioning groove are formed in the cover plate, and the plurality of avoidance holes are in one-to-one correspondence with the plurality of electric core grooves.

Further, the lower surface of apron is provided with electric core constant head tank, and electric core constant head tank is located the top of a plurality of electric core grooves, and the connection piece constant head tank sets up the tank bottom at electric core constant head tank.

Further, the inner side wall of the cover plate is provided with a plurality of connecting piece positioning grooves which are arranged at intervals, and each connecting piece positioning groove corresponds to one cell groove.

Further, the battery cell welding jig comprises two cover plates, the battery cell groove penetrates through the bottom wall of the positioning seat, and the two cover plates are respectively arranged on two sides of the positioning seat in a covering mode and are connected with the positioning seat.

Further, the battery cell welding jig further comprises a magnetic attraction piece, and the cover plate is connected with the positioning seat through the magnetic attraction piece.

Further, the battery cell welding jig further comprises positioning pins, and the positioning pins are in limit fit with the cover plate and the positioning seat respectively; the battery cell welding jig further comprises a limiting block, the limiting block is arranged on the positioning seat, a limiting groove is formed in the outer edge of the cover plate, the limiting block is located in the limiting groove, and the magnetic attraction piece, the positioning pin and the limiting block are arranged along the circumferential interval of the positioning seat.

Further, the positioning seat comprises a cylinder body and a battery cell frame, the battery cell frame is fixedly arranged in the cylinder body, a plurality of battery cell grooves are formed in the battery cell frame, and the cover plate covers the battery cell frame and is in limit fit with the cylinder body.

Further, the battery cell frame comprises a first frame body and a second frame body, the first frame body and the second frame body are arranged at intervals along the width direction of the barrel, the first frame body and the second frame body are connected with the barrel, a first groove is formed in the first frame body, a second groove is formed in the second frame body, and the first groove and the second groove jointly enclose a battery cell groove.

Further, the barrel includes first curb plate, second curb plate, third curb plate and the fourth curb plate that connect gradually, first curb plate and third curb plate parallel arrangement, second curb plate and fourth curb plate parallel arrangement, and electric core frame all is connected with first curb plate, second curb plate, third curb plate and fourth curb plate.

Further, the positioning seat comprises two electric core frames, the two electric core frames are sequentially arranged along the width direction of the cylinder body, electric core grooves are formed in each electric core frame, and the cover plate covers the upper portions of the two electric core frames.

By applying the technical scheme of the utility model, the battery cell welding jig comprises a positioning seat and a cover plate, when the battery cells and the connecting pieces are required to be welded, a plurality of battery cells are correspondingly placed in the battery cell grooves of the positioning seat one by one, the connecting pieces are placed above the corresponding battery cells, the cover plate is arranged on the top wall of the positioning seat and is connected with the positioning seat, the connecting pieces are positioned by using the connecting piece positioning grooves on the lower surface of the cover plate, the connecting pieces are prevented from moving, and the welding machine is used for welding the connecting pieces and the corresponding plurality of battery cells through the avoiding holes on the cover plate. Because the connecting piece is positioned by the connecting piece positioning groove arranged on the lower surface of the cover plate, the connecting piece can be prevented from moving, and the relative position of the welded battery cell and the connecting piece is more accurate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

Fig. 1 shows a schematic structural diagram of a die bonding jig according to an embodiment of the present utility model;

FIG. 2 shows a schematic structural view of the cover plate of FIG. 1;

Fig. 3 is a schematic structural diagram of a die-bonding jig according to an embodiment of the present disclosure;

Fig. 4 shows an exploded view of the positioning socket of fig. 1.

Wherein the above figures include the following reference numerals:

10. A positioning seat; 11. a cell slot; 12. a cylinder; 121. a first side plate; 122. a second side plate; 123. a third side plate; 124. a fourth side plate; 13. a cell holder; 131. a first frame body; 1311. a first groove; 132. a second frame body; 1321. a second groove;

20. A cover plate; 21. a connecting piece positioning groove; 22. avoidance holes; 23. a cell positioning groove; 231. a cell limiting surface;

30. A magnetic attraction piece;

40. A positioning pin;

50. and a limiting block.

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. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. 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.

As shown in fig. 1 to 4, an embodiment of the present utility model provides a die-bonding jig, which includes a positioning base 10 and a cover 20, wherein the positioning base 10 has a plurality of die slots 11 arranged at intervals, and the die slots 11 penetrate through the top wall of the positioning base 10; the apron 20 lid is established on the roof of positioning seat 10 and is connected with positioning seat 10, and the lower surface of apron 20 is provided with connection piece constant head tank 21, and connection piece constant head tank 21 is located the top of a plurality of electric core grooves 11, still has a plurality of holes 22 of dodging that run through the setting and communicate with connection piece constant head tank 21 on the apron 20, and a plurality of holes 22 of dodging set up with a plurality of electric core grooves 11 one-to-one.

By applying the technical scheme of the utility model, the battery cell welding jig comprises a positioning seat 10 and a cover plate 20, when welding of the battery cells and the connecting sheets is required, a plurality of battery cells are correspondingly placed in the battery cell grooves 11 of the positioning seat 10 one by one, the connecting sheets are placed above the corresponding battery cells, the cover plate 20 is covered on the top wall of the positioning seat 10 and is connected with the positioning seat 10, so that the connecting sheets are positioned by using the connecting sheet positioning grooves on the lower surface of the cover plate 20, the connecting sheets are prevented from moving, and the welding is performed by using a welding machine through the avoiding holes 22 on the cover plate 20, so that the connecting sheets are welded and connected with the corresponding plurality of battery cells. Because the connecting piece is positioned by the connecting piece positioning groove arranged on the lower surface of the cover plate 20, the connecting piece can be prevented from moving, and the relative positions of the welded battery cell and the connecting piece are more accurate.

In this embodiment, the battery cell groove 11 is a cylindrical groove, the battery cell is a cylindrical battery cell, and the battery cell welding jig welds the cylindrical battery cell and the connecting sheet.

Wherein, the connection piece is the nickel piece, and every connection piece connects two cylinder electric core at least.

As shown in fig. 2 and 3, the lower surface of the cover plate 20 is provided with a battery cell positioning groove 23, the battery cell positioning groove 23 is located above the battery cell grooves 11, the connecting piece positioning groove 21 is arranged at the bottom of the battery cell positioning groove 23, one end of the connecting piece positioning groove 21 penetrates through the side wall of the battery cell positioning groove 23, the battery cell positioning groove 23 is provided with a plurality of battery cell limiting surfaces 231, and the battery cell limiting surfaces 231 are arranged in one-to-one correspondence with the battery cell grooves 11. The battery cells can be positioned simultaneously by utilizing the battery cell positioning groove 23, so that the relative movement between the battery cells and the connecting sheet is further prevented, and the position positioning of the battery cells and the connecting sheet is more accurate.

In this embodiment, the cell positioning groove 23 has a plurality of cell limiting surfaces 231 which are connected, and the side wall of the cell positioning groove 23 forms the cell limiting surface 231, and the cell limiting surface 231 is formed by arc surfaces which are symmetrically arranged.

As shown in fig. 2, the inner side wall of the cover plate 20 is provided with a plurality of connecting piece positioning grooves 21 arranged at intervals, and each connecting piece positioning groove 21 is arranged corresponding to one cell groove 11. By utilizing the plurality of connecting piece positioning grooves 21, a plurality of connecting pieces and corresponding battery cells can be welded simultaneously, so that the welding efficiency is improved, and the working hours are saved.

As shown in fig. 1, the die-bonding jig includes two cover plates 20, the die-bonding groove 11 further penetrates through the bottom wall of the positioning seat 10, and the two cover plates 20 are respectively covered on two sides of the positioning seat 10 and are both connected with the positioning seat 10. By adopting the structure, the jig can be used for welding the two poles of the battery cell and the corresponding connecting sheet, so that the welding efficiency is further improved.

As shown in fig. 3, the die bonding fixture further includes a magnetic attraction member 30, and the cover plate 20 is connected with the positioning seat 10 through the magnetic attraction member 30. The cover plate 20 and the positioning seat 10 are connected by the magnetic attraction piece 30, and the assembly and disassembly are convenient.

In this embodiment, the magnetic attraction member 30 is a magnet.

Of course, other means of attachment, such as bolting, may be used.

As shown in fig. 3, the die-bonding jig further includes a positioning pin 40, where the positioning pin 40 is in limit fit with the cover plate 20 and the positioning seat 10, respectively, and by using the positioning pin 40, accurate positioning of the cover plate 20 and the positioning seat 10 can be achieved, so as to further prevent movement of the die and the connecting piece.

As shown in fig. 3, the die bonding fixture further includes a limiting block 50, the limiting block 50 is disposed on the positioning seat 10, a limiting groove is disposed at an outer edge of the cover plate 20, the limiting block 50 is disposed in the limiting groove, and the magnetic attraction member 30, the positioning pin 40 and the limiting block 50 are disposed along a circumferential direction of the positioning seat 10 at intervals. With the stopper 50, preliminary positioning of the cover plate 20 and the positioning seat 10 can be achieved, so that assembly of the cover plate 20 and the positioning seat 10 is facilitated.

In the present embodiment, when the cover plate 20 is mounted to the positioning seat 10, the preliminary positioning of the cover plate 20 and the positioning seat 10 is first achieved by using the stopper 50 and the stopper groove. The accurate positioning of the cover plate 20 and the positioning seat 10 is achieved by using the positioning pins 40.

As shown in fig. 3 and 4, the positioning seat 10 includes a cylinder 12 and a battery cell frame 13, the battery cell frame 13 is fixedly disposed in the cylinder 12, a plurality of battery cell slots 11 are disposed in the battery cell frame 13, and a cover plate 20 covers the battery cell frame 13 and is in limit fit with the cylinder 12. The positioning seat 10 with the structure can be used for positioning the battery cell frame 13 and the cover plate 20 by utilizing the cylinder 12 so as to prevent the battery cell frame 13 and the cover plate 20 from moving relatively.

As shown in fig. 3 and 4, the battery cell holder 13 includes a first holder 131 and a second holder 132, where the first holder 131 and the second holder 132 are disposed at intervals along the width direction of the cylinder 12, the first holder 131 and the second holder 132 are both connected with the cylinder 12, a first groove 1311 is disposed on the first holder 131, a second groove 1321 is disposed on the second holder 132, and the first groove 1311 and the second groove 1321 jointly enclose the battery cell slot 11. The battery cell rack 13 adopting the structure has the advantages of simple structure and convenient processing.

In the present embodiment, the first frame 131 and the second frame 132 are both connected to the cylinder 12 by bolts.

As shown in fig. 3, the barrel 12 includes a first side plate 121, a second side plate 122, a third side plate 123 and a fourth side plate 124 which are sequentially connected, the first side plate 121 and the third side plate 123 are arranged in parallel, the second side plate 122 and the fourth side plate 124 are arranged in parallel, and the cell holder 13 is connected to the first side plate 121, the second side plate 122, the third side plate 123 and the fourth side plate 124. The cylinder 12 adopting the structure has the advantages of simple structure and convenient assembly.

As shown in fig. 3, the positioning seat 10 includes two battery cell frames 13, the two battery cell frames 13 are sequentially arranged along the width direction of the cylinder 12, a battery cell groove 11 is arranged in each battery cell frame 13, and a cover plate 20 is arranged above the two battery cell frames 13 in a covering manner. Adopt the setting of two electric core frames 13, can weld more electric core and connection piece simultaneously, promote welding efficiency.

By adopting the battery cell welding jig provided by the embodiment, the operation method of staff can be standardized, the operation is simple and convenient, the welding time is greatly saved, the productivity is improved, and the welding quality is more stable.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a electricity core welding jig which characterized in that, electricity core welding jig includes:

The positioning seat (10) is provided with a plurality of cell grooves (11) which are arranged at intervals, and the cell grooves (11) penetrate through the top wall of the positioning seat (10);

The cover plate (20) is covered on the roof of positioning seat (10) and is connected with positioning seat (10), the lower surface of cover plate (20) is provided with connection piece constant head tank (21), connection piece constant head tank (21) are located a plurality of the top of electric core groove (11), still have on cover plate (20) run through set up and with a plurality of dodge hole (22) of connection piece constant head tank (21) intercommunication, a plurality of dodge hole (22) with a plurality of electric core groove (11) one-to-one sets up.

2. The battery cell welding jig according to claim 1, wherein a battery cell positioning groove (23) is formed in the lower surface of the cover plate (20), the battery cell positioning groove (23) is located above a plurality of battery cell grooves (11), and the connecting piece positioning groove (21) is formed in the groove bottom of the battery cell positioning groove (23).

3. The die bonding jig according to claim 1, wherein the cover plate (20) has a plurality of connecting piece positioning grooves (21) disposed at intervals on an inner side wall thereof, and each connecting piece positioning groove (21) is disposed corresponding to one of the die grooves (11).

4. The battery cell welding jig according to claim 1, wherein the battery cell welding jig comprises two cover plates (20), the battery cell groove (11) further penetrates through the bottom wall of the positioning seat (10), and the two cover plates (20) are respectively covered on two sides of the positioning seat (10) and are connected with the positioning seat (10).

5. The die-bonding jig according to claim 1, further comprising a magnetic attraction member (30), wherein the cover plate (20) is connected with the positioning seat (10) through the magnetic attraction member (30).

6. The die-bonding jig according to claim 5, wherein,

The battery cell welding jig further comprises a positioning pin (40), and the positioning pin (40) is in limit fit with the cover plate (20) and the positioning seat (10) respectively;

The battery cell welding jig further comprises a limiting block (50), the limiting block (50) is arranged on the positioning seat (10), a limiting groove is formed in the outer edge of the cover plate (20), the limiting block (50) is located in the limiting groove, and the magnetic attraction piece (30), the positioning pin (40) and the limiting block (50) are arranged along the circumferential interval of the positioning seat (10).

7. The electric core welding jig according to claim 1, wherein the positioning seat (10) comprises a cylinder body (12) and an electric core frame (13), the electric core frame (13) is fixedly arranged in the cylinder body (12), a plurality of electric core grooves (11) are formed in the electric core frame (13), and the cover plate (20) covers the electric core frame (13) and is in limit fit with the cylinder body (12).

8. The battery cell welding jig according to claim 7, wherein the battery cell holder (13) comprises a first holder body (131) and a second holder body (132), the first holder body (131) and the second holder body (132) are arranged at intervals along the width direction of the cylinder body (12), the first holder body (131) and the second holder body (132) are connected with the cylinder body (12), a first groove (1311) is formed in the first holder body (131), a second groove (1321) is formed in the second holder body (132), and the first groove (1311) and the second groove (1321) jointly enclose the battery cell groove (11).

9. The die bonding jig according to claim 7, wherein the cylinder (12) comprises a first side plate (121), a second side plate (122), a third side plate (123) and a fourth side plate (124) which are sequentially connected, the first side plate (121) and the third side plate (123) are arranged in parallel, the second side plate (122) and the fourth side plate (124) are arranged in parallel, and the die holder (13) is connected with the first side plate (121), the second side plate (122), the third side plate (123) and the fourth side plate (124).

10. The electric core welding jig according to claim 7, wherein the positioning seat (10) comprises two electric core frames (13), the two electric core frames (13) are sequentially arranged along the width direction of the cylinder body (12), the electric core grooves (11) are formed in each electric core frame (13), and the cover plate (20) is arranged above the two electric core frames (13) in a covering mode.