CN217253926U

CN217253926U - Battery soldering lug spot welding fixture device

Info

Publication number: CN217253926U
Application number: CN202120833422.2U
Authority: CN
Inventors: 汪峰; 于力; 阮红林; 周敬; 黄文�
Original assignee: Wuhan Haocheng Lithium Technology Co ltd
Current assignee: Wuhan Haocheng Lithium Technology Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2022-08-23
Anticipated expiration: 2031-04-22

Abstract

The utility model belongs to the technical field of the lithium cell, concretely relates to battery soldering lug spot welding fixture device. The battery soldering lug spot welding fixture device comprises an upper positioning seat assembly, a middle seat assembly, a lower positioning seat assembly and a base assembly. The upper positioning seat assembly comprises an upper positioning seat, the middle seat assembly comprises a middle seat, the lower positioning seat assembly comprises a lower positioning seat, and the base assembly comprises a base. The upper positioning seat, the middle seat and the lower positioning seat are stacked from top to bottom and supported on the base. The upper positioning seat is provided with an upper soldering lug positioning groove, the lower positioning seat is provided with a lower soldering lug positioning groove, any one of the upper positioning seat, the middle seat and the lower positioning seat is provided with a battery positioning groove, and the upper soldering lug positioning groove and the lower soldering lug positioning groove are communicated with the battery positioning groove. The base is detachably connected with a structural member formed by the upper positioning seat, the middle seat and the lower positioning seat. The utility model discloses the mode of location battery and upper and lower soldering lug is simple, has simplified welding process.

Description

Battery soldering lug spot welding fixture device

Technical Field

The utility model belongs to the technical field of the lithium cell, concretely relates to battery soldering lug spot welding fixture device.

Background

Because of its advantages of high energy density and long service life, lithium batteries have been widely used in the fields of various instruments and meters such as gas meters and water meters. In order to weld the lithium battery on the circuit board, lead-out soldering lugs are added at the two ends of the positive electrode and the negative electrode of the battery core of the lithium battery. Generally, the soldering lug is welded with the positive electrode and the negative electrode of the battery core of the lithium battery in a spot welding mode. There are generally location and size requirements between the tab and the cell of the lithium battery.

The existing welding mode of the welding lug and the anode and the cathode of the lithium battery is complex. Therefore, it is desirable to provide a device to improve the ease of soldering the tab to the positive and negative electrodes of the lithium battery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery soldering lug spot welding fixture device to improve the welded convenience of positive negative pole of soldering lug and lithium cell.

To achieve the purpose, the utility model adopts the following technical proposal:

a battery soldering lug spot welding fixture device comprises an upper positioning seat assembly, a middle seat assembly, a lower positioning seat assembly and a base assembly; the upper positioning seat assembly comprises an upper positioning seat, the middle seat assembly comprises a middle seat, the lower positioning seat assembly comprises a lower positioning seat, and the base assembly comprises a base; the upper positioning seat, the middle seat and the lower positioning seat are stacked from top to bottom and supported on the base;

the upper positioning seat is provided with an upper soldering lug positioning groove, the lower positioning seat is provided with a lower soldering lug positioning groove, any one of the upper positioning seat, the middle seat and the lower positioning seat is provided with a battery positioning groove, and the upper soldering lug positioning groove and the lower soldering lug positioning groove are communicated with the battery positioning groove;

the base is detachably connected to a structural member formed by the upper positioning seat, the middle seat and the lower positioning seat.

Preferably, in the above-mentioned battery lug spot welding jig device, the upper positioning seat assembly further includes an upper magnet embedded in the upper positioning seat, and the upper magnet is used for generating an adsorption force on the upper lug.

Preferably, in the above battery tab spot welding jig device, the upper magnet is at least partially located in the upper tab positioning groove and is configured to support the upper tab.

Preferably, in the above battery lug spot welding jig device, the outer side surface of the upper positioning seat is recessed to form the battery positioning groove and the upper lug positioning groove in sequence.

Preferably, in the above battery tab spot welding jig device, the center base assembly further includes a center magnet embedded in an outer side surface of the center base, the center magnet being configured to generate an attractive force to the battery.

Preferably, in the above-mentioned battery lug spot welding jig device, the outer side surfaces of the upper positioning seat, the middle seat and the lower positioning seat are all provided with battery positioning grooves, and the sum of the heights of the three battery positioning grooves is higher than the height of the battery.

Preferably, in the above-mentioned battery lug spot welding jig device, the base assembly further includes a bottom magnet embedded in the base, and the base is fixed to the structural member by a magnetic attraction force.

Preferably, in the above-mentioned battery lug spot welding jig device, the upper positioning seat, the middle seat and the lower positioning seat are provided with pin holes for positioning by positioning pins.

Preferably, in the above-mentioned battery tab spot welding jig device, the upper positioning seat, the middle seat and the lower positioning seat are connected by a fastener to form the structural member, and the middle seat is an insulator.

Preferably, in the above battery tab spot welding jig device, the upper locating seat assembly and the lower locating seat assembly are symmetrical with respect to the middle seat assembly.

The utility model discloses a battery soldering lug spot welding fixture device's beneficial effect lies in: when the soldering lug and the battery are welded, the battery is positioned in the battery positioning groove, the soldering lug is positioned in the upper soldering lug positioning groove, and then one electrode of the battery is welded with the upper soldering lug. The base is separated from the structural member and placed on the upper positioning seat, then the base, the upper positioning seat, the middle seat and the lower positioning seat are turned over integrally, so that the base sequentially supports the upper positioning seat, the middle seat and the lower positioning seat from bottom to top, and the lower soldering lug is welded with the other electrode of the battery according to the mode of welding the upper soldering lug. The utility model discloses the mode of location battery and upper and lower soldering lug is simple, has simplified welding process.

Drawings

FIG. 1 is a perspective view of a battery tab spot welding fixture device according to an embodiment of the present invention;

FIG. 2 is a top view of a battery tab spot welding fixture device according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view at A-A of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 2 at B-B;

fig. 5 is a cross-sectional view at C-C of fig. 2.

The component names and designations in the drawings are as follows:

the upper positioning seat assembly 10, the upper positioning seat 11, the upper magnet 12, the upper soldering lug positioning groove 111, the middle seat assembly 20, the middle seat 21, the middle magnet 22, the lower positioning seat assembly 30, the lower positioning seat 31, the lower magnet 32, the base assembly 40, the base 41, the bottom magnet 42, the battery positioning groove 50, the battery 60, the upper soldering lug 70, the pin hole 81, the positioning pin 82 and the screw 90.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

As shown in fig. 1 to 3, the present embodiment discloses a battery tab spot welding jig device. The battery lug spot welding fixture device comprises an upper positioning seat assembly 10, a middle seat assembly 20, a lower positioning seat assembly 30 and a base assembly 40. The upper positioning socket assembly 10 includes an upper positioning socket 11, the middle socket assembly 20 includes a middle socket 21, the lower positioning socket assembly 30 includes a lower positioning socket 31, and the base assembly 40 includes a base 41.

As shown in fig. 1, the upper positioning seat 11, the middle seat 21, the lower positioning seat 31, and the base 41 are distributed in sequence from top to bottom. The upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are stacked from top to bottom and supported by the base 41. The base 41 of the present embodiment may be a rectangular plate. The upper positioning base 11, the middle base 21 and the lower positioning base 31 are also substantially rectangular plate structures. The length and width of the base 41 are respectively greater than those of the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31. The length and width of the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 may be the same.

In other alternative embodiments, the base 41 may be a plate having other shapes such as a circular plate, a diamond plate, etc. The shapes of the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are not limited to the rectangular plate structure.

In this embodiment, the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are connected by a fastening member, which may be a screw 90, to form a structural member. Therefore, the upper positioning socket 11, the intermediate socket 21, and the lower positioning socket 31 are separable. The middle base 21 is an insulator, for example, the middle base 21 may be made of PVC material, so as to prevent the upper and lower electrodes of the battery 60 from being conducted to cause short circuit when the battery 60 is subsequently positioned.

In this embodiment, the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are provided with pin holes 81 communicated with each other for positioning by positioning pins 82. Specifically, two pin holes 81 may be disposed on the upper positioning seat 11, the middle seat 21, and the lower positioning seat 31. As shown in fig. 1, two pin holes 81 are distributed in the longitudinal direction of the structural member. The number of screws 90 may also be two, two screws 90 also being distributed in the length direction of the structural member. The two pin holes 81 are located between the two screws 90, and the pin holes 81 and the screws 90 may be distributed on the same straight line.

In other alternative embodiments, the number of pin holes 81 may be one, three, four, etc. The number of screws 90 may also be one, three, four, etc.

As shown in fig. 1, 4 and 5, when the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are assembled, the positioning pin 82 is inserted into the pin hole 81, so that the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are aligned. The upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are then connected by screws 90. Finally, the positioning pin 82 is pulled out of the pin hole 81 to prevent the upper and lower poles of the battery 60 from being conducted to cause short circuit when the battery 60 is subsequently positioned.

In other alternative embodiments, a first pin hole is formed between the upper positioning seat 11 and the middle seat 21 and a second pin hole is formed between the middle seat 21 and the lower positioning seat 31 and the first pin hole and the second pin hole are not communicated, in which case, two positioning pins may not be drawn out.

As further shown in fig. 1-3, the upper positioning seat 11 has an upper soldering lug positioning slot 111, and the upper soldering lug positioning slot 111 is used for positioning the upper soldering lug 70. The lower positioning seat 31 has a lower tab positioning groove (not shown) for positioning a lower tab (not shown). Any one of the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 has a battery positioning groove 50. The battery positioning groove 50 is preferably a semicircular arc groove (semicircular in plan view) to be fitted to a part of the outer peripheral surface of the battery 60 to position the battery 60. The upper soldering lug positioning groove 111 and the lower soldering lug positioning groove are communicated with the battery positioning groove 50. The base 41 is detachably connected to the structural member formed by the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31.

In this embodiment, when welding the upper soldering lug 70 and one electrode of the battery 60, the battery 60 is positioned in the battery positioning groove 50, the upper soldering lug 70 is positioned in the upper soldering lug positioning groove 111, and after the upper soldering lug 70 and the battery 60 are respectively positioned, the upper soldering lug 70 contacts with one electrode of the battery 60, and the mutual position relationship meets the requirements of the preset position and size. The upper tab 70 is then welded to one electrode of the battery 60 by spot welding.

The lower tab is then welded to the other electrode of the cell 60: the base 41 is separated from the structural member and is placed on the upper positioning seat 11, then the base 41, the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are turned over integrally, so that the base 41 sequentially supports the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 from bottom to top, and the lower soldering lug is welded with the other electrode of the battery 60 in a mode of welding the upper soldering lug 70. The present embodiment has a simple way of positioning the battery 60 and the upper and lower tabs, simplifying the welding process.

As shown in fig. 3, in the present embodiment, the upper positioning seat assembly 10 further includes an upper magnet 12 embedded in the upper positioning seat 11, and the upper magnet 12 is used for generating an attraction force on the upper solder tab 70. The upper lug 70 is further positioned by the attractive force of the upper magnet 12 to further improve the welding accuracy of the upper lug 70 with one electrode of the battery 60.

In this embodiment, the upper magnet 12 is at least partially located in the upper tab positioning groove 111 and is used to support the upper tab 70. The upper magnet 12 directly supports the upper soldering lug 70, so that the positioning effect is better. In addition, the structure of the upper positioning seat 11 or the intermediate seat 21 is also simplified.

In this embodiment, the battery positioning groove 50 and the upper tab positioning groove 111 are formed in sequence by the outer side surface of the upper positioning seat 11 being recessed. Similarly, the outer side surface of the lower positioning seat 31 is recessed to form a battery positioning groove 50 and a lower soldering lug positioning groove in sequence. The outer side surface of the middle seat 21 is recessed to form a battery positioning groove 50.

In this embodiment, the middle base assembly 20 further includes a middle magnet 22 embedded in the outer side surface of the middle base 21, and the middle magnet 22 is used for generating an attraction force on the battery 60 to improve the positioning effect on the battery 60, so as to improve the welding accuracy between the upper bonding pad 70, the lower bonding pad and the battery 60.

In this embodiment, the outer side surfaces of the upper positioning seat 11, the middle seat 21 and the lower positioning seat 31 are all provided with battery positioning slots 50, and the sum of the heights of the three battery positioning slots 50 is higher than the height of the battery 60.

In this embodiment, the upper spud assembly 10 and the lower spud assembly 30 are symmetrical with respect to the middle spud assembly 20. Thus, the lower socket assembly 30 includes a lower magnet 32 embedded in a lower socket 31. The lower magnet 32 is used to support the lower pad and generate an attractive force to the lower pad.

In this embodiment, the base assembly 40 further includes a bottom magnet 42 embedded in the base 41, and the base 41 is fixed to the structural member by magnetic attraction. The bottom magnet 42 may generate an attractive force with any one of the upper magnet 12, the middle magnet 22, and the lower magnet 32 in the structure. The base 41 of the present embodiment is simple and convenient to connect and separate from the structural member.

The specific dimensions of the upper positioning seat 11, the lower positioning seat 31 and the middle seat 21 of the present embodiment may be determined according to the dimensions of the upper tab 70, the lower tab and the battery 60. The upper soldering lug positioning groove 111 and the corresponding battery positioning groove 50 and the lower soldering lug positioning groove form a positioning structure. At least two positioning structures are distributed on the upper positioning seat 11, the lower positioning seat 31 and the middle seat 21 of the embodiment, and the at least two positioning structures are distributed on two long side surfaces of the upper positioning seat 11, the lower positioning seat 31 and the middle seat 21. For example, the number of locating structures is two, three, four, five, six, seven, eight, etc. to improve the efficiency of electric welding.

The upper positioning seat 11, the lower positioning seat 31, and the middle seat 21 of this embodiment can be processed by wire cutting to improve the accuracy of positioning the upper tab 70, the lower tab, and the battery 60.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery soldering lug spot welding fixture device is characterized by comprising an upper positioning seat assembly (10), a middle seat assembly (20), a lower positioning seat assembly (30) and a base assembly (40); the upper locating seat assembly (10) comprises an upper locating seat (11), the middle seat assembly (20) comprises a middle seat (21), the lower locating seat assembly (30) comprises a lower locating seat (31), and the base assembly (40) comprises a base (41); the upper positioning seat (11), the middle seat (21) and the lower positioning seat (31) are stacked from top to bottom and supported on the base (41);

the upper positioning seat (11) is provided with an upper soldering lug positioning groove (111), the lower positioning seat (31) is provided with a lower soldering lug positioning groove, any one of the upper positioning seat (11), the middle seat (21) and the lower positioning seat (31) is provided with a battery positioning groove (50), and the upper soldering lug positioning groove (111) and the lower soldering lug positioning groove are communicated with the battery positioning groove (50);

the base (41) is detachably connected to a structural member formed by the upper positioning seat (11), the middle seat (21) and the lower positioning seat (31).

2. The battery lug spot welding fixture device according to claim 1, wherein the upper positioning seat assembly (10) further comprises an upper magnet (12) embedded in the upper positioning seat (11), the upper magnet (12) being used for generating an adsorption force to the upper lug (70).

3. The battery tab spot welding jig device according to claim 2, wherein the upper magnet (12) is located at least partially in the upper tab positioning groove (111) and serves to support the upper tab (70).

4. The battery tab spot welding jig device according to claim 1, wherein the outer side surface of the upper positioning seat (11) is recessed to form the battery positioning groove (50) and the upper tab positioning groove (111) in this order.

5. The battery tab spot welding jig device according to claim 1, wherein the middle seat assembly (20) further comprises a middle magnet (22) embedded in an outer side surface of the middle seat (21), the middle magnet (22) being configured to generate an attractive force to the battery (60).

6. The battery lug spot welding fixture device according to claim 1, wherein the outer side surfaces of the upper positioning seat (11), the middle seat (21) and the lower positioning seat (31) are provided with battery positioning grooves (50), and the sum of the heights of the three battery positioning grooves (50) is higher than the height of a battery (60).

7. The battery tab spot welding fixture device according to claim 1, wherein the base assembly (40) further comprises a base magnet (42) embedded in the base (41), the base (41) being secured to the structural member by magnetic attraction.

8. The battery tab spot welding jig device according to claim 1, characterized in that the upper positioning seat (11), the middle seat (21) and the lower positioning seat (31) are provided with pin holes (81) to be positioned by positioning pins (82).

9. The battery tab spot welding fixture device according to claim 1, wherein the upper positioning seat (11), the middle seat (21) and the lower positioning seat (31) are connected by a fastener to form the structural member, and the middle seat (21) is an insulator.

10. The battery tab spot welding fixture device according to any one of claims 1-9, wherein the upper anchor block assembly (10) and the lower anchor block assembly (30) are symmetrical with respect to the middle anchor block assembly (20).