CN214816118U - Battery busbar welding jig - Google Patents

Abstract

The utility model relates to a power battery technical field discloses a battery busbar welding jig. The battery busbar welding jig comprises a supporting seat and a clamping mechanism, wherein the supporting seat comprises a base and a supporting rod connected to the base, the base is used for bearing an electric core to be welded, the clamping mechanism comprises a bearing body and a clamping assembly, a through hole extending along the Z direction is formed in the bearing body, the clamping assembly is arranged on the bearing body, the clamping assembly can clamp a busbar on one side of the through hole towards the base, at least part of the upper surface and at least part of the lower surface of the busbar are exposed, and the clamping mechanism can move relative to the supporting rod along the Z direction, so that the lower surface of the busbar is pressed on a pole of the electric core. The utility model discloses a battery busbar welding jig can assist with the busbar welding on electric core, and convenient operation, need not use consumptive material, with low costs.

Description

Battery busbar welding jig

Technical Field

The utility model relates to a power battery technical field especially relates to a battery busbar welding jig.

Background

With the development of science and technology, power batteries are widely applied to new energy automobiles. In order to ensure the driving safety of the new energy automobile, all parameters of the power battery during operation need to be ensured to meet the standard, and therefore, in the production process of the power battery, before the battery core is assembled into a finished battery module, multiple performance tests need to be carried out. In the testing link, two or more electric cores need to be welded together through a bus bar, in the prior art, when the bus bar is welded on a pole of the electric core, the bus bar is usually pressed at the pole of the electric core by manpower and then welded, and the operation is very inconvenient; or the bus bar is adhered to the position to be welded of the battery core by the double faced adhesive tape, and then welding is carried out, so that more double faced adhesive tapes are consumed in multiple experiments, and the cost is increased in the test.

Therefore, a need exists for a battery bus bar welding fixture to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery busbar welding jig, it can assist with the busbar welding on electric core, and convenient operation, with low costs.

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

a battery busbar welding fixture, comprising:

the supporting seat comprises a base and a supporting rod connected to the base, and the base is configured to bear the battery cell;

the clamping mechanism comprises a bearing body and a clamping assembly, wherein a through hole extending along the Z direction is formed in the bearing body, the clamping assembly is arranged on the bearing body, the clamping assembly can clamp a busbar on one side of the through hole, which faces the base, and at least part of the upper surface and part of the lower surface of the busbar are exposed, and the clamping mechanism can move relative to the supporting rod along the Z direction so that the lower surface of the busbar is pressed on a pole of the battery cell.

Optionally, the position that bears the weight of the body one side towards the base, with the through-hole is provided with first heavy groove, be provided with on the first cell wall of first heavy groove perpendicular to Y to along the Y is to the spout that extends, the centre gripping subassembly includes the baffle, the baffle can selectively stretch out the spout in order to with the busbar is pressed from both sides bear the weight of the body with between the baffle, or retract the spout is in order to dodge the busbar.

Optionally, a lap joint groove is formed in a second groove wall of the first sinking groove, which is opposite to the first groove wall, and one end of the baffle plate can be inserted into the lap joint groove.

Optionally, along the X direction, at least two sliding grooves are arranged on the first groove wall, and one baffle is arranged in each sliding groove.

Optionally, the clamping assembly further includes a first clamping block and a second clamping block, the first clamping block and the second clamping block are disposed on one side of the bearing body facing the base and are respectively disposed on two sides of the through hole along the Y direction, and the first clamping block and/or the second clamping block can slide along the Y direction, so that the first clamping block and the second clamping block clamp the busbar.

Optionally, one side of the bearing body facing the base is provided with a first slide rail and a second slide rail extending along the Y direction, the first slide rail and the second slide rail are respectively arranged at two sides of the through hole along the Y direction, the first clamping block is in sliding fit with the first slide rail, and the second clamping block is in sliding fit with the second slide rail.

Optionally, the bearing body faces one side of the base, and a position opposite to the through hole is provided with a second sinking groove, the depth of the second sinking groove is greater than that of the first sinking groove, and the first sliding rail and the second sliding rail are both arranged at the bottom of the second sinking groove.

Optionally, the clamping assembly further includes a threaded rod extending along the Y direction, one end of the threaded rod is rotatably connected to the first clamping block, the other end of the threaded rod passes through and extends out of the bearing body, and the threaded rod is in threaded connection with the bearing body.

Optionally, the bearing body is provided with two through holes, and each through hole is correspondingly provided with a group of clamping assemblies.

Optionally, the battery busbar anchor clamps still include the setting linear guide on the branch, linear guide follows the Z extends to bearing the weight of the body and being connected with the slider, the slider with linear guide sliding fit.

The utility model discloses beneficial effect does:

the utility model discloses a battery busbar welding jig, when using, through the centre gripping subassembly earlier with the busbar centre gripping on bearing the weight of the body, at least part upper surface of busbar exposes from the through-hole this moment, at least part lower surface exposes, then place the electric core on the supporting seat, drive fixture is close to the supporting seat along Z to mutually, until the lower surface of busbar contacts with the utmost point post of electric core, operating personnel can weld the busbar with the utmost point post of electric core together from the through-hole, after the welding, remove the centre gripping of centre gripping subassembly to the busbar, and drive fixture is far away from the supporting seat along Z and remove, so that the welding body of electric core and busbar takes out from the below of fixture, convenient operation; the battery bus bar welding clamp cannot generate consumption of consumables such as double faced adhesive tape and the like in the repeated use process, and is low in cost.

Drawings

Fig. 1 is a front view of a battery bus bar welding jig according to an embodiment of the present invention;

fig. 2 is a bottom view of a clamping mechanism according to an embodiment of the present invention;

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

fig. 4 is a sectional view B-B in fig. 2.

In the figure:

1-a support seat; 11-a base; 12-a strut;

2-a clamping mechanism; 21-a carrier body; 211-a through hole; 212-first sink; 2121-a first tank wall; 2122-a second slot wall; 213-a chute; 214-lap joint groove; 215-second sink tank; 221-a baffle; 222-a first clamp block; 223-a second clamp block; 224-a first slide rail; 225-a second slide rail; 226-threaded rod;

3-a linear guide rail;

4-a slide block.

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", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular 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 have a special meaning.

The embodiment provides a battery bus bar welding clamp which can be used for a process of welding a bus bar on a pole of an electric core in the technical process of testing the performance of a power battery. Specifically, as shown in fig. 1 to 4, in the drawings, the X direction and the Y direction indicate vertical horizontal directions, and the Z direction indicates a vertical direction, the battery bus bar welding fixture includes a supporting base 1 and a clamping mechanism 2, where the supporting base 1 includes a base 11 and a supporting rod 12 connected to the base 11, the base 11 is used for bearing a battery cell to be welded, the clamping mechanism 2 includes a bearing body 21 and a clamping assembly, a through hole 211 extending in the Z direction is provided on the bearing body 21, the clamping assembly can clamp the bus bar on a side of the through hole 211 facing the base 11, and expose at least a part of an upper surface and at least a part of a lower surface of the bus bar, and the clamping mechanism 2 can move relative to the supporting rod 12 in the Z direction so that the lower surface of the bus bar is pressed on a pole of the battery cell. It should be noted that: by "exposing at least a portion of the lower surface of the busbar" is meant that, when viewed from below the fixture 2, at least a portion of the busbar is visible so that the busbar makes contact with and electrically connects to the poles of the battery. By "exposing at least a portion of the upper surface of the busbar" is meant that, looking down from above the fixture 2, at least a portion of the busbar is visible through the through-hole 211, so that a welding tool can be inserted into the through-hole 211 and weld the busbar and the post together.

When the battery bus bar welding fixture of the embodiment is used, firstly, the bus bar is clamped on the bearing body 21 through the clamping assembly, at least part of the upper surface of the bus bar is exposed from the through hole 211, at least part of the lower surface of the bus bar is exposed, then, two battery cells to be welded are placed on the supporting seat 1 side by side along the X direction, so that the poles of the battery cells are arranged upward, the two poles to be welded are opposite to the through hole 211, the clamping mechanism 2 is driven to approach the supporting seat 1 along the Z direction until the lower surface of the bus bar is contacted with the poles of the two battery cells to be welded, an operator can weld the bus bar and the poles of the battery cells together from the through hole 211, after the welding is finished, the clamping assembly is released from clamping the bus bar, and the clamping mechanism 2 is driven to move away from the supporting seat 1 along the Z direction, so that the welded body of the battery cells and the bus bar can be taken out from the lower part of the clamping mechanism 2, the operation is convenient; the battery bus bar welding clamp cannot generate consumption of consumables such as double faced adhesive tape and the like in the repeated use process, and is low in cost.

In particular, in the present embodiment, the bearing body 21 is made of a high temperature resistant material, which ensures that the bearing body 21 is not damaged when welding the bus bar. Further, the battery bus bar welding fixture further includes a driving assembly (not shown), an output end of the driving assembly is connected to the clamping mechanism 2, and can drive the clamping mechanism 2 to move along the Z direction, and any existing driving mechanism capable of outputting linear motion can be used in the present embodiment without departing from the inventive concept of the present application, and is not limited herein. Preferably, as shown in fig. 1, the battery bus bar fixture further includes a linear guide 3 disposed on the supporting rod 12, the linear guide 3 extends along the Z direction, the bearing body 21 is connected with a sliding block 4, the sliding block 4 is in sliding fit with the linear guide 3, so as to ensure that the clamping mechanism 2 moves stably and the direction is accurate, and further ensure that the through hole 211 on the bearing body 21 just exposes the position to be welded of the terminal and the bus bar.

Preferably, as shown in fig. 1, two through holes 211 are provided on the bearing body 21, and each through hole 211 is provided with a set of the clamping assemblies. When the battery cell is placed, two polar columns of the same battery cell are respectively opposite to the two through holes 211, so that when the busbar on one side is welded, the polar column on the other side is prevented from interfering with the bearing body 21; every group centre gripping subassembly can a busbar of centre gripping, so can select the utmost point post of welding electric core which one side according to actual need, make battery busbar welding jig use more nimble convenience.

Preferably, as shown in fig. 1 to 3, a first sinking groove 212 is disposed on a side of the bearing body 21 facing the base 11 opposite to the through hole 211, a sliding groove 213 extending along the Y direction is disposed on a first groove wall 2121 of the first sinking groove 212 perpendicular to the Y direction, and the clamping assembly includes a blocking plate 221, and the blocking plate 221 can selectively extend out of the sliding groove 213 to clamp the bus bar between the bearing body 21 and the blocking plate 221, or retract into the sliding groove 213 to avoid the bus bar. Before clamping the busbar on the clamping mechanism 2, firstly, the baffle 221 is pushed into the chute 213 to avoid the notch of the first sinking groove 212 of the groove, then, the busbar is placed into the first sinking groove 212, the busbar is enabled to be abutted against the upper side groove wall of the first sinking groove 212, then, the baffle 221 is pulled out of the chute 213, the baffle 221 is enabled to be located below the busbar, the baffle 221 shields the lower surface of part of the busbar and supports the busbar, so that the busbar is fixed on the bearing body 21, after the step of descending the clamping mechanism 2 to the battery cell and welding the busbar and the pole of the battery cell, the baffle 221 is pushed into the chute 213 at the moment, the baffle 221 is enabled to avoid the notch of the first sinking groove 212 again, and therefore, the welding body of the busbar and the battery cell can be taken out from the lower part of the clamping mechanism 2, the structure is simple, and the operation is convenient. In this embodiment, the first sinking groove 212 penetrates the bearing body 21 along the X direction, so that the process of pushing the baffle 221 into the sliding groove 213 is more convenient.

Preferably, as shown in fig. 2, at least two sliding grooves 213 are disposed on the first groove wall 2121 along the X direction, and one baffle 221 is disposed in each sliding groove 213. Two baffles 221 bear the both ends of busbar edge X respectively, neither influence the welding of busbar and utmost point post, and can improve the support stability of baffle 221 to the busbar among the welding process. In this embodiment, the first slot wall 2121 is provided with two sliding slots 213 at intervals, the baffle 221 is a strip-shaped plate extending along the Y direction, and the dimension of the strip-shaped plate along the X direction is not limited to the welding position on the bus bar.

Preferably, as shown in fig. 2 and 3, a second groove wall 2122 of the first sinking groove 212 opposite to the first groove wall 2121 is provided with a bridging groove 214, and one end of the blocking plate 221 can be inserted into the bridging groove 214. When the baffle 221 is required to support the bus bar, one end of the baffle 221, which extends out of the sliding groove 213, is inserted into the overlapping groove 214, so that both ends of the baffle 221 can be stably supported, and the support stability of the baffle 221 to the bus bar in the welding process is further improved. In this embodiment, two overlapping grooves 214 are formed in the second groove wall 2122, and each overlapping groove 214 is disposed opposite to one sliding groove 213.

Preferably, as shown in fig. 1, 2, and 4, the clamping assembly further includes a first clamping block 222 and a second clamping block 223, the first clamping block 222 and the second clamping block 223 are disposed on one side of the bearing body 21 facing the base 11 and are respectively disposed on two sides of the through hole 211 along the Y direction, and the first clamping block 222 and the second clamping block 223 can slide along the Y direction to enable the first clamping block 222 and the second clamping block 223 to clamp the bus bar. Through the cooperation of first slider 4 and second slider 4, can realize that it is spacing to the accurate of busbar along the Y direction to guarantee busbar and electric core welding position's precision. In this embodiment, the first clamping block 222 and the second clamping block 223 can both slide along the Y direction, so that the position adjustment of the bus bar along the Y direction is more flexible, and in other embodiments, only the first clamping block 222 can slide, which is not limited herein. Preferably, the first clamping block 222 and the second clamping block 223 are made of insulating materials to avoid the electric leakage of the battery cell.

In this embodiment, as shown in fig. 3, a first slide rail 224 and a second slide rail 225 extending along the Y direction are disposed on one side of the bearing body 21 facing the base 11, the first slide rail 224 and the second slide rail 225 are respectively disposed on two sides of the through hole 211 along the Y direction, the first clamping block 222 is in sliding fit with the first slide rail 224, and the second clamping block 223 is in sliding fit with the second slide rail 225. The first clamping block 222 and the second clamping block 223 are ensured to be accurate in the direction of the sliding process along the Y direction, and therefore the position deviation of the bus bar is avoided.

Preferably, as shown in fig. 3, a second sinking groove 215 is disposed on a side of the bearing body 21 facing the base 11 opposite to the through hole 211, a depth of the second sinking groove 215 is greater than a depth of the first sinking groove 212, and the first sliding rail 224 and the second sliding rail 225 are disposed at a groove bottom of the second sinking groove 215. The first slide rail 224, the second slide rail 225, the first clamping block 222, and the second clamping block 223 may be accommodated in the second sinking groove 215, so as to avoid interference with the battery cell at the Z-direction position. Preferably, the second sinking groove 215 is disposed between the two sliding grooves 213 along the X direction, so as to avoid the first clamping block 222 or the second clamping block 223 from interfering with the blocking plate 221.

Further, as shown in fig. 4, the clamping assembly further includes a threaded rod 226 extending along the Y direction, one end of the threaded rod 226 is rotatably connected to the first clamping block 222, the other end of the threaded rod passes through and extends out of the bearing body 21, and the threaded rod 226 is in threaded connection with the bearing body 21. Therefore, when the threaded rod 226 is rotated, the first clamping block 222 can be pushed to move along the Y direction, so that the bus bar can be clamped on the second clamping block 223, and the bus bar clamping device is simple in structure and convenient to operate. Specifically, a bearing is arranged at one end of the threaded rod 226 connected with the first clamping block 222, an outer ring of the bearing is connected with the first clamping block 222, and the threaded rod 226 is connected with an inner ring of the bearing, so that the threaded rod 226 and the first clamping block 222 can be rotatably connected. In the specific use process of this embodiment, can be according to the actual size of electric core, screw up second clamp splice 223 on second slide rail 225 through bolt or other fasteners earlier, the in-process of dismouting busbar, only adjust the position of first clamp splice 222, it is more convenient to operate, when needs weld electric core and the busbar of different dimensions, can suitably adjust the fixed position of second clamp splice 223 on second slide rail 225.

Obviously, 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, and for those skilled in the art, there are variations on the specific embodiments and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention. 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 (10)

1. A battery bus bar welding jig, comprising:

the supporting seat (1) comprises a base (11) and a supporting rod (12) connected to the base (11), wherein the base (11) is configured to bear a battery cell;

the clamping mechanism (2) comprises a bearing body (21) and a clamping assembly, a through hole (211) extending along the Z direction is formed in the bearing body (21), the clamping assembly is arranged on the bearing body (21), the clamping assembly can clamp a bus bar on one side, facing the base (11), of the through hole (211), at least part of the upper surface and at least part of the lower surface of the bus bar are exposed, and the clamping mechanism (2) can move relative to the supporting rod (12) along the Z direction, so that the lower surface of the bus bar is pressed on a pole of the battery cell.

2. The battery bus bar welding jig according to claim 1, wherein a first sinking groove (212) is provided at a position opposite to the through hole (211) on a side of the bearing body (21) facing the base (11), a sliding groove (213) extending along the Y direction is provided on a first groove wall (2121) of the first sinking groove (212) perpendicular to the Y direction, and the clamping assembly comprises a blocking plate (221), wherein the blocking plate (221) can selectively extend out of the sliding groove (213) to clamp the bus bar between the bearing body (21) and the blocking plate (221), or retract into the sliding groove (213) to avoid the bus bar.

3. The battery bus bar welding jig according to claim 2, wherein a lap groove (214) is provided on a second groove wall (2122) of the first sinking groove (212) disposed opposite to the first groove wall (2121), and one end of the baffle plate (221) is insertable into the lap groove (214).

4. The battery bus bar welding jig of claim 2, wherein at least two of the sliding grooves (213) are provided on the first groove wall (2121) in the X direction, and one of the baffles (221) is provided in each of the sliding grooves (213).

5. The battery bus bar welding jig of claim 2, wherein the clamping assembly further comprises a first clamping block (222) and a second clamping block (223), the first clamping block (222) and the second clamping block (223) are disposed on one side of the bearing body (21) facing the base (11) and are respectively disposed on two sides of the through hole (211) along the Y direction, and the first clamping block (222) and/or the second clamping block (223) can slide along the Y direction to enable the first clamping block (222) and the second clamping block (223) to clamp the bus bar.

6. The battery bus bar welding jig according to claim 5, wherein a side of the bearing body (21) facing the base (11) is provided with a first slide rail (224) and a second slide rail (225) extending along the Y direction, the first slide rail (224) and the second slide rail (225) are respectively provided at both sides of the through hole (211) along the Y direction, the first clamping block (222) is slidably engaged with the first slide rail (224), and the second clamping block (223) is slidably engaged with the second slide rail (225).

7. The battery bus bar welding jig according to claim 6, wherein a second sinking groove (215) is provided at a position opposite to the through hole (211) on a side of the carrier body (21) facing the base (11), a depth of the second sinking groove (215) is greater than a depth of the first sinking groove (212), and the first slide rail (224) and the second slide rail (225) are both provided at a bottom of the second sinking groove (215).

8. The battery bus bar welding fixture of claim 5, wherein the clamping assembly further comprises a threaded rod (226) extending in the Y-direction, one end of the threaded rod (226) being rotatably connected to the first clamping block (222) and the other end of the threaded rod (226) passing through and protruding out of the load-bearing body (21), the threaded rod (226) being threadedly connected to the load-bearing body (21).

9. The battery bus bar welding jig according to any one of claims 1 to 8, wherein two through holes (211) are provided on the carrier body (21), and a set of the clamping members is provided for each through hole (211).

10. The battery bus bar welding jig according to any one of claims 1 to 8, further comprising a linear guide (3) provided on the support bar (12), the linear guide (3) extending in the Z-direction, a slider (4) being attached to the bearing body (21), the slider (4) being in sliding engagement with the linear guide (3).

Images