CN209998634U - welding tool suitable for battery module - Google Patents
welding tool suitable for battery module Download PDFInfo
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- CN209998634U CN209998634U CN201920400691.2U CN201920400691U CN209998634U CN 209998634 U CN209998634 U CN 209998634U CN 201920400691 U CN201920400691 U CN 201920400691U CN 209998634 U CN209998634 U CN 209998634U
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Abstract
The utility model discloses a welding frock suitable for battery module, it is including being used for pressing the clamp plate to the clamping piece and the second clamping piece of battery module, consequently can compress tightly in the supporting shoe reliably with the positive negative pole ear of treating welded electric core, guarantees from this that the rosin joint's condition can not appear in battery welding in groups, and the resistance of battery module after in groups is less and stable performance, in addition, according to the utility model discloses a welding frock is convenient for realize the automatic welding of soft package module, and sends nature good, welding performance is good and module welding is efficient.
Description
Technical Field
The utility model relates to a welding frock especially relates to welding frock suitable for battery module.
Background
The power battery system is used as a power output component and an energy storage core component of the new energy electric automobile, and the importance of the power performance and the safety performance of the power battery system is self-evident. The battery module is used as a core module of the power battery system, and the performance of the battery module in battery core selection and battery core group connection seriously affects the performance of the electric automobile.
Compared with a square battery and a cylindrical battery, the soft package battery has the advantages of good performance, small size and light weight. For the soft package battery formed by the combination of the soft package battery core, the group welding performance of the soft package battery core is particularly important, and the performance of a power system is seriously influenced by the size of internal resistance after welding. However, in the existing welding process, an operator usually bends and overlaps two positive and negative electrode lead-out tabs of a battery core and then directly welds the tabs, so that an air gap exists between the positive and negative electrode lead-out tabs and a copper or aluminum supporting block, and a welding area is in a cold joint state after welding. And appearance difference does not exist near the positive and negative electrode tabs which are subjected to cold welding or not after welding. However, the contact resistance of the battery module or the whole pack with the cold solder joint is too large at the welding position, so that the power performance of the battery module or the whole pack is seriously attenuated, and the whole performance of the new energy electric automobile is seriously influenced.
Therefore, there is a need for new welding tools to eliminate the above-mentioned drawbacks of the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide welding frock that are applicable to battery module in order to overcome the defect that current welding frock can't satisfy laminate polymer battery's welding quality
The utility model discloses a solve above-mentioned technical problem through adopting following technical scheme:
the utility model provides an welding frock suitable for battery module, its characteristics lie in that it includes:
a holder for accommodating the battery module and including a bottom plate and side plates on the bottom plate, wherein the side plates define open ends on a side away from the bottom plate, and the side plates are provided with at least two clamping members near the open ends;
a pressure plate removably secured to the open end and provided with at least two second clamp members capable of mating with the th clamp member;
when the th clamping piece is matched with the second clamping piece, the pressing plate can press the tabs of the battery modules placed in the fixing frame.
Preferably, the th clamping piece is any of a quick clamp or a lug, and the second clamping piece is another of the quick clamp or the lug.
Preferably, the pressing plate is provided with an opening and an insulating frame, wherein the insulating frame is fixed to the opening and comprises th guide holes, a pressing strip, guide pins and elastic pieces, the th guide holes are through holes extending along the thickness direction of the insulating frame, the pressing strip is arranged on the side surface of the insulating frame facing the battery module, the guide pins are fixedly connected with the pressing strip and are slidably arranged in the th guide holes, and the elastic pieces are fixed in the insulating frame and are configured to be pressed against the pressing strip, so that the pressing strip protrudes from the side surface in a natural state.
Preferably, the pressing strip is constructed as a brass or steel piece.
Preferably, the welding tool further comprises a positioning mechanism, wherein the positioning mechanism comprises at least two positioning shafts arranged at the opening end of the fixing frame, and at least two positioning holes arranged on the pressing plate and matched with the positioning shafts.
Preferably, the welding tool further comprises a positioning mechanism, wherein the positioning mechanism comprises at least two positioning holes arranged at the open end of the fixing frame, and at least two positioning shafts arranged on the pressing plate and matched with the positioning holes.
Preferably, the fixing frame comprises at least two side plates which are approximately parallel and approximately perpendicular to the bottom plate.
Preferably, the welding tool further comprises an insulating bottom plate attachable to the upper surface of the bottom plate.
Preferably, the base plate is configured as an insulating plate.
Preferably, the elastic piece is sleeved on the guide nail.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in:
according to the utility model discloses a welding frock, it is applicable to battery module welding frock is including clamping pieces and the second clamping piece that is used for pressing the clamp plate to battery module, consequently can compress tightly in the supporting shoe reliably with two positive negative pole ears of treating welded electric core, guarantees from this that the rosin joint's condition can not appear in battery welding in groups, and the resistance of battery module after in groups is less and the stable performance, in addition, according to the utility model discloses a welding frock is convenient for realize the automatic welding of soft package module, and sends nature good, welding performance is good and module welding is efficient.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a welding tool suitable for a battery module according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of the fixing frame in fig. 1.
FIGS. 3-5 are schematic views of the platen of FIG. 1; fig. 3 and fig. 4 and 5 show different end faces of the pressing plate, the end face shown in fig. 3 is the end face facing the bottom plate, fig. 4 and 5 are the end faces away from the bottom plate, fig. 4 shows the state of the pressing plate when the pressing bar does not press the battery module, and fig. 5 shows the state of the pressing plate bar pressing the battery module (at this time, the guide pins protrude from the surface of the pressing plate).
Fig. 6 is a plan view of the welding jig to which the battery module is fixed, the reference angle being the plan direction of fig. 1.
Fig. 7 is a sectional view taken along the direction a-a of fig. 6.
Fig. 8 is an enlarged view of a portion B of fig. 7.
Fig. 9 is an enlarged view of a portion C of fig. 8.
Fig. 10-13 are state diagrams of different situations in the operation process of fixing the battery module by using the welding tool of the present invention to perform welding.
Detailed Description
The preferred embodiment of the present invention will be described in further detail at with reference to the accompanying drawings, wherein the following description is exemplary and not intended to limit the invention, and any other similar situations will fall within the scope of the invention.
In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", and the like, are used with reference to the orientation as illustrated in the drawings. The components of the various embodiments of the present invention can be positioned in a number of different orientations and the directional terminology is used for purposes of illustration and is in no way limiting.
Referring to fig. 1-13, welding tools suitable for a battery module 3 according to the preferred embodiment of the invention include a fixing frame 1 and a pressing plate 2, wherein the fixing frame 1 is used for accommodating the battery module 3. in the example shown in fig. 1-2, the fixing frame 1 includes a bottom plate 1-1 and two side plates 1-2 which are substantially parallel to each other and are substantially perpendicular to the bottom plate 1-1, the two side plates 1-2 define an open end at the side far away from the bottom plate 1-1, and the side plates 1-2 are provided with two lugs 2-5 near the open end.
The pressure plate 2 is removably fixed to the open end and is provided with two snap clips 1-5 which are respectively engaged with the two lugs 2-5.
Referring to fig. 10-13, the operation of the welding tool according to the present invention is shown. When the rapid clamp is used, the battery module 3 is placed in the fixing frame 1, the pressing plate 2 is placed at the open end of the fixing frame 2, the triangular clamping piece of the rapid clamp 1-5 is placed in the hanging lug 2-5, and the handle of the rapid clamp 1-5 is pressed tightly, so that the battery module 3 can be clamped, and two tabs 3-1 to be welded are ensured to be attached to each other and to be attached to the supporting block 3-2 below the tabs 3-1.
It will be appreciated by those skilled in the art that the side panels 1-2 may be provided in any other number greater than 2, such as 3, 4, etc., and that the side panels 1-2 need not be provided in a generally parallel relationship with one another. According to the fixing frame 1 of the present invention, it is intended to define a space for accommodating the battery module 3, support the pressing plate 2, and reserve an opening or a space for a welding gun to penetrate therein, or a laser required for welding (in the examples of fig. 1-2, 10-13, the space is a left side opening and a right side opening in fig. 2 defined by two side plates 1-2), and those skilled in the art can set any other type of fixing frame 2 based on this idea.
Referring to fig. 1-2, it is preferable that reinforcing ribs 1-3 and cross members 1-4 are further provided on the fixing frame 2, thereby improving the structural strength of the fixing frame 2.
The positions of the quick clamps 1-5 and the hanging lugs 2-5 can be interchanged, namely, the quick clamps 1-5 in the figures 1 and 10-13 are arranged on the pressure plate 2, the hanging lugs 2-5 are arranged on the side plates 1-2, the pair of clamping pieces consisting of the quick clamps 1-5 and the hanging lugs 2-5 can also be arranged not only in two pairs but also in other numbers, in the embodiment of which is provided with a plurality of pairs of clamping pieces, the quick clamps 1-5 or the hanging lugs 2-5 can be arranged on the pressure plate 2 or the side plates 1-2 instead of , part of the quick clamps 1-5 can be arranged on the pressure plate 2, and the other part of the quick clamps 1-5 are arranged on the side plates 1-2
Referring to fig. 3-5, in a preferred embodiment of , a pressure plate 2 is provided with an opening and an insulation frame 2-2, wherein the insulation frame 2-2 is fixed to the opening and includes a th guide hole, a pressure strip 2-3, a guide pin 2-6 and an elastic member 2-4, the th guide hole is a through hole extending in the thickness direction of the insulation frame 2-2, the pressure strip 2-3 is provided on the side of the insulation frame 2-2 facing the battery module 3, the guide pin 2-6 is fixedly connected with the pressure strip 2-3, and the guide pin 2-6 is slidably provided at the th guide hole, the elastic member 2-4 such as a spring is fixed in the insulation frame 2-2, and in a natural state, the elastic member 2-4 is in a compressed state, which presses the pressure strip 2-3 away from the surface of the pressure, the insulation frame 2-2 can be fixed in the opening by means of a screw coupling, whereby the pressure plate 2-3 is pressed against the battery module 3 by means of the elastic member 2-4 such as a spring, the pressure strip 2-3 can be pressed against the cell, and the cell can be prevented from being damaged by the elastic member, and the cell contact with the cell.
It is to be understood that the compression strips 2-3 made of brass or steel may prevent themselves from melting and fusing with the tab 3-1 to form bodies when the tab 3-1 is welded, compared to the conventional material of the cell tab 3-1, in which the heat absorption capacity of brass or steel is small.
As shown in fig. 1-2, 10-13, in a preferred embodiment , steps can be taken to provide a positioning mechanism at the welding tool, specifically, the positioning mechanism includes two positioning shafts 1-6a, 1-7a provided at the open end of the fixture 1, and two positioning holes 2-1a, 2-1b provided at the press plate 2 and cooperating with the positioning shafts 1-6a, 1-7 a. it is understood that the positioning holes 2-1a, 2-1b and the positioning shafts 1-6a, 1-7a can be interchanged in their arrangement positions, and optionally, the positioning holes 2-1a, 2-1b, the positioning shafts 1-6a, 1-7a can each be provided in any number greater than 2. in a more preferred embodiment of , the positioning shafts 1-6a, 1-7a can be provided on separate supports 1-6, 1-7 detachably secured to the side plates, whereby the press plate 2 of different shape configuration can be replaced to accommodate the size of a battery module 3 of different size, and the size can be detachably secured to the side plates 1-6a, 1-2 in a similar to the side plates 1-7a, 362 a, 2 a, 362-1-7 b.
Referring to fig. 2, in , the welding fixture further includes an insulating base plate 1-8 attached to the upper surface of the base plate 1-1, thereby ensuring that the electrical core assembly is electrically insulated from the outside during welding, and similarly, the above-mentioned purpose of electrical insulation can be achieved by providing the base plate 1-1 as an insulating plate.
referring to FIGS. 4-5, in the preferred embodiment , the elastic member 2-4 is fitted over the guide pin 2-6.
By adopting the embodiment of the preferred arrangement, the welding device can ensure that the tab 3-1 is firmly pressed on the supporting plate, thereby ensuring that the cell module is not subjected to cold welding, meanwhile, the manual pressing operation of the tab 3-1 is not required to be carried out for multiple times by a welding operator to press the tab by a hand tool, thereby avoiding the problems of low pressing force consistency and large welding effect difference of two or more cell tabs to be welded in each time of multiple welding operations.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments can be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications all fall within the scope of the present invention.
Claims (10)
1, kinds of welding frock suitable for battery module, its characterized in that, welding frock includes:
a holder for accommodating the battery module and including a bottom plate and side plates on the bottom plate, wherein the side plates define open ends on a side away from the bottom plate, and the side plates are provided with at least two clamping members near the open ends;
a pressure plate removably secured to the open end and provided with at least two second clamp members capable of mating with the th clamp member;
when the th clamping piece is matched with the second clamping piece, the pressing plate can press the tabs of the battery modules placed in the fixing frame.
2. The welding tool of claim 1, wherein the th clamping piece is any of of a quick clamp or a lug, and the second clamping piece is another of the quick clamp or the lug.
3. The welding tool of claim 2, wherein the pressure plate is provided with an opening and an insulating frame, the insulating frame is fixed to the opening and comprises an -th guide hole, a pressing strip, a guide nail and an elastic piece, the -th guide hole is a through hole extending in the thickness direction of the insulating frame, the pressing strip is arranged on the side face, facing the battery module, of the insulating frame, the guide nail is fixedly connected with the pressing strip and slidably arranged in the -th guide hole, and the elastic piece is fixed in the insulating frame and is configured to be in pressed abutting contact with the pressing strip, so that the pressing strip protrudes from the side face in a natural state.
4. The welding fixture of claim 3, wherein the hold down bar is configured as a brass or steel piece.
5. The welding tooling of any of claims 1-4, further comprising a positioning mechanism including at least two positioning shafts disposed at the open end of the fixture and at least two positioning holes disposed in the pressure plate and engaged with the positioning shafts.
6. The welding tooling of any of claims 1-4, further comprising a positioning mechanism including at least two positioning holes disposed at the open end of the fixture and at least two positioning shafts disposed on the pressure plate and engaged with the positioning holes.
7. The welding fixture of claim 1, wherein the fixture includes at least two side plates that are substantially parallel to each other and substantially perpendicular to the bottom plate.
8. The welding fixture of claim 7, further comprising an insulating base plate attachable to an upper surface of the base plate.
9. The welding tool of claim 7, wherein the base plate is configured as an insulating plate.
10. The welding tooling of claim 3, wherein the elastic member is sleeved on the guide pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400691.2U CN209998634U (en) | 2019-03-27 | 2019-03-27 | welding tool suitable for battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400691.2U CN209998634U (en) | 2019-03-27 | 2019-03-27 | welding tool suitable for battery module |
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| Publication Number | Publication Date |
|---|---|
| CN209998634U true CN209998634U (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920400691.2U Active CN209998634U (en) | 2019-03-27 | 2019-03-27 | welding tool suitable for battery module |
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| CN (1) | CN209998634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210975A (en) * | 2021-05-18 | 2021-08-06 | 洛阳储变电系统有限公司 | Lithium battery module welding tool |
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2019
- 2019-03-27 CN CN201920400691.2U patent/CN209998634U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210975A (en) * | 2021-05-18 | 2021-08-06 | 洛阳储变电系统有限公司 | Lithium battery module welding tool |
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