CN213242863U - Binding post convenient to automatic laser welding - Google Patents

Abstract

The utility model relates to a welding terminal specifically is a binding post convenient to automatic laser welding, including weld part and the crimping portion of setting at the weld part front end, set up block portion in the weld part, this block portion can block the location portion on the welding aluminium target to can fix binding post temporarily. The utility model discloses in, set up block portion on the weld part, through block portion with whole binding post card in the location portion department of welding aluminium target, come to carry out interim fixing to the binding post with the help of block portion, this can accurate installation binding post promptly, still need not the people hand during the welding and fix a position, simultaneously, can preassemble binding post and welding aluminium target in batches to carry out automatic laser welding to a large amount of built-up parts, thereby improve work efficiency.

Description

Binding post convenient to automatic laser welding

Technical Field

The utility model relates to a welding terminal specifically is a binding post convenient to automatic laser welding.

Background

In the lithium battery industry, it is an essential part to carry out voltage acquisition to single electric core when assembling into the module. For different structures of the battery cell cover plate, common voltage acquisition connection modes include bolt connection, laser welding, tin welding, ultrasonic welding and rivet structures. The laser welding has the advantages of high speed, large depth, small deformation, simple welding equipment, high power density after laser focusing, capability of carrying out micro welding and the like, and can be widely applied.

The main defects of the existing scheme are as follows:

laser welding requires high precision in the assembly of the weldment and requires that the position of the beam on the workpiece not be significantly offset. If the assembly precision or the beam positioning precision of the workpiece cannot meet the requirements, welding defects are easily caused. The current industry has the following laser welding modes for the voltage acquisition terminal:

1. the welding of the single terminal of pencil relies on the manual work to weld with the fixed welding terminal of tweezers, and shortcoming inefficiency, the cost of labor is high.

2. Flexible wiring harness board (FPC) welding, flexible wiring harness board are fixed and are carried out automatic welding on module plastics isolation support, and shortcoming material cost is high, and the module limitation is great, and the connector needs to be carried out the switching.

PCB board welding, the PCB board is fixed and is carried out automated bonding on module plastics isolation support, and shortcoming material cost is high, and the module limitation is great, and the connector need carry out the switching.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applicable to automatic laser welding, and can accurate location, guarantee not have leak welding, weld the binding post of phenomenons such as partially, this binding post can be applicable to various welding aluminium targets to be applicable to the module of multiple model, the commonality is strong, can be with reduction in production cost simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a binding post convenient to automatic laser welding, includes the welding part and sets up the crimping portion at the welding part front end. The welding part is provided with a clamping part which can be used for clamping and welding the positioning part on the aluminum target and temporarily fixing the wiring terminal.

In above-mentioned technical scheme, set up block portion on the welding part, through block portion with whole binding post card in the location portion department of welding aluminium target, come to carry out the temporary fixation to the binding post with the help of block portion, this can accurate installation binding post promptly, still need not the people hand location during the welding, simultaneously, can preassemble binding post and welding aluminium target in batches to carry out automatic laser welding to a large amount of built-up components, thereby improve work efficiency.

Preferably, the welding area where the aluminum target is welded is provided with a through engaging hole, the engaging portion is an insertion member provided on the back surface of the welding portion, and the insertion member is insertable into the engaging hole from the top to the bottom. The insertion part is longitudinally inserted into the clamping hole, so that the wiring terminal can be prevented from moving in the plane where the welding aluminum target is located, the phenomenon that the wiring terminal displaces in the welding process can be effectively avoided, and accurate welding is guaranteed.

As a further improvement to the insertion part, the insertion part is provided with a reverse fixing piece which can penetrate through the clamping hole and be clamped on the back of the welding aluminum target, so that the insertion part can be prevented from automatically separating from the clamping hole, the phenomenon that the wiring terminal longitudinally moves can be effectively avoided, good contact between the welding part and the welding aluminum target is guaranteed, and the welding precision is further guaranteed.

As a preferable aspect of the insertion part, the insertion part is a U-shaped insertion head integrally provided with the welding part, and the U-shaped insertion head can be processed by a simple bending process, so that the production cost can be reduced, and the lower part of the insertion head has high strength and can be stably engaged with the engaging hole.

In the embodiment where the insertion member is a U-shaped insertion head, the reverse fixing member is preferably an engaging protrusion provided on a side wall of the insertion head, and the engaging protrusion protrudes toward the outside of the U-shaped space.

In another preferred embodiment of the insertion member, the insertion member is two insertion pieces extending downward from the welding portion, and the lower ends of the two insertion pieces are engaging hooks bent outward and upward. The two insertion pieces are independently arranged, the deformation capacity is good, the two insertion pieces can be easily inserted into the clamping holes, and the clamping stability is ensured under the action of the clamping hooks at the lower ends of the insertion pieces.

In the case where the insertion member is formed of two insertion pieces, it is preferable that the insertion pieces are inclined toward the inner side of the insertion member, and the distance between the tips of the two engaging hooks is kept larger than the width of the engaging hole, and the distance between the two bent connecting portions connecting the engaging hooks and the insertion pieces is smaller than the width of the engaging hole. The width of the lower end of the whole inserting component is smaller than that of the clamping hole, the narrower lower end has a guiding effect, the inserting component is conveniently aligned and pre-inserted into the clamping hole, and then the whole inserting component can be inserted into the clamping hole by pressing down.

The utility model discloses a through set up block portion on the weld part, make whole binding post have and weld the function that the aluminium target was connected and was fixed a position, satisfy the demand of standard equipment binding post and welding aluminium target to guarantee that binding post can not take place the skew, thereby realize need not staff location and automatic weld's purpose, improve production efficiency, reduce the cost of labor. Meanwhile, the scheme is strong in universality, different battery modules can be met, and the development period of a project is shortened.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic plan view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a first embodiment of the present invention.

Fig. 3 is a schematic view of the installation structure of the first embodiment of the present invention.

Fig. 4 is a schematic view illustrating the engagement state of the engagement portion and the engagement hole in the attached state according to the first embodiment of the present invention.

Fig. 5 is a schematic perspective view of a second embodiment of the present invention.

Fig. 6 is a schematic plan view of a second embodiment of the present invention.

Fig. 7 is a schematic view illustrating an engaging state of the engaging portion and the engaging hole in the mounted state according to the second embodiment of the present invention.

In the figure, a welding part 1, a pressure-bonding part 2, an engaging part 3, a welding aluminum target 10, an engaging hole 11, an insertion head 31, an engaging convex part 32, an insertion piece 33, an engaging hook 34, and a bent connecting part 35.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1-4, a first embodiment of the present invention is shown, a connecting terminal for facilitating automated laser welding. The terminal comprises a welding part 1 and a press-bonding part 2 arranged at the front end of the welding part 1, wherein an engaging part 3 matched with a square engaging hole 11 on a welding aluminum target 10 is arranged on the welding part 1. Wherein, the square engaging hole 11 on the welding aluminum target 10 is a prefabricated hole and is a structure matched with the utility model,

as shown in fig. 1 and 2, the engaging portion 3 is a U-shaped insertion head 31 formed by stamping at the middle of the welding portion 1, and protruding portions 32 protruding outward are provided at both sides of the insertion head 31, specifically, the protruding portions 32 are protruding outward on the side surfaces of the insertion head 31. As shown in fig. 3 and 4, when the insert head 31 is pressed into the engaging hole 11, the welding portion 1 is attached to the front surface of the welding aluminum target 10, and the protrusions 32 on both sides of the insert head 31 are engaged with the lower edge of the engaging hole 11, so that the entire insert head 31 is fixed in the engaging hole 11 without a displacement motion such as rotation or longitudinal movement.

In this embodiment, set up on the welding part 1 and insert joint 31, insert whole binding post in the block hole 11 on welding aluminium target 10 through inserting joint 31 to rely on bellying 32 to come to carry out interim fixed to the binding post, this can accurate installation binding post promptly, still need not the staff location during the welding, simultaneously, can preassemble binding post and welding aluminium target 10 in batches, and carry out automatic laser welding to a large amount of built-up parts, thereby improve work efficiency.

Fig. 5 to 7 illustrate a second embodiment of the present invention, which is different from the first embodiment in that the structure of the engaging portion 3 is different, but both of them are inserting components, specifically, the welding portion 1 in this embodiment is a flat plate structure, two inserting pieces 33 extending downward are respectively disposed on the left and right sides of the welding portion 1, and the lower ends of the two inserting pieces 33 are engaging hooks 34 bending outward and upward, when being installed, the two inserting pieces 33 are inserted into the engaging holes 11, and the engaging hooks 34 automatically contact the lower edges of the engaging holes 11.

In order to facilitate quick installation of the terminal having this structure, the insertion piece 33 is inclined toward the inner side of the insertion member, so that the insertion piece 33 is kept at an angle θ (θ is not too large, and is kept at 3 ° to 10 °) with respect to the vertical direction, and the distance between the top ends of the two engaging hooks 34 is kept larger than the width of the engaging hole 11, and the distance between the two bent connecting portions 35 connecting the engaging hooks 34 and the insertion piece 33 is smaller than the width of the engaging hole 11. When the assembly is performed, the bent connecting portion 35 is aligned with the engaging hole 11, and then the welding portion 1 is pressed downward, so that the insertion piece 33 is completely inserted into the engaging hole 11, and the engaging hook 34 is pressed against the lower edge of the engaging hole 11.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (7)

1. The utility model provides a binding post convenient to automatic laser welding, includes the welding part and sets up the crimping portion at the welding part front end, its characterized in that: the welding part is provided with a clamping part which can be used for clamping and welding the positioning part on the aluminum target and temporarily fixing the wiring terminal.

2. A terminal for facilitating automated laser welding as recited in claim 1, wherein: the positioning part on the welding aluminum target is a clamping hole arranged in a welding area, the clamping part is an inserting part arranged on the back surface of the welding part, and the inserting part can be inserted into the clamping hole from top to bottom.

3. A terminal for facilitating automated laser welding as recited in claim 2, wherein: and the inserting component is provided with a reverse fixing piece which can penetrate through the clamping hole and be clamped on the back of the welding aluminum target.

4. A terminal for facilitating automated laser welding as recited in claim 3, wherein: the inserting component is a U-shaped inserting head which is integrally arranged with the welding part.

5. A terminal for facilitating automated laser welding as recited in claim 4, wherein: the reverse fixing piece is a clamping convex part arranged on the side wall of the plug, and the clamping convex part is convex towards the outer side of the U-shaped space.

6. A terminal for facilitating automated laser welding as recited in claim 3, wherein: the inserting and combining part is two inserting and combining pieces extending downwards from the welding part, and the lower ends of the two inserting and combining pieces are clamping hooks bent outwards and upwards.

7. A terminal for facilitating automated laser welding as recited in claim 6, wherein: the inserting and combining piece inclines towards the inner side of the inserting and combining component, the distance between the top ends of the two clamping hooks is kept to be larger than the width of the clamping hole, and the distance between the two bending connecting parts for connecting the clamping hooks and the inserting and combining piece is smaller than the width of the clamping hole.

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