Welding detection tool

Abstract

The utility model provides a welding detection tool, and relates to the technical field of battery manufacturing. The welding detection tool comprises a busbar, a hanging lug and a tool plate. The busbars are connected with the hanging lugs and are used for being welded with the battery cells; the hanging lug is hung on the tool plate and used for being separated from the tool plate under the condition that the hanging lug deforms under stress. After the busbar and the battery cell are welded, whether welding is completed smoothly or not can be judged by lifting the tool plate and observing whether the hanging lugs connected with the busbar are separated from the tool plate or not, so that the inspection efficiency is remarkably improved while welding positioning of the busbar is achieved, the tool plate can also play a role in welding protection, and the welding quality is improved. The battery cell welding inspection efficiency and quality are effectively improved, too much manual participation is not needed, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of battery manufacturing, in particular to a welding detection tool. Background Art

[0002] There are many problems in the inspection of battery core welding of existing new energy battery modules. For example, although the traditional manual prying inspection can accurately and intuitively check the welding quality, it is very inefficient and increases labor costs; and the new machine vision inspection technology is not mature enough at present, and it cannot accurately detect the poor welding, which is the most important aspect of battery core welding, and it is easy to miss inspections. These problems are common in the current battery core welding inspection, which has a great impact on product production efficiency and quality. Utility Model Content

[0003] The utility model aims to provide a welding detection tool, which can improve the efficiency of battery core welding inspection and save costs.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a welding inspection tool, including a busbar, a hanging ear and a tool plate;

[0006] The busbar is connected to the hanging ear, and the busbar is used for welding with the battery core; the hanging ear is hung on the tooling plate, and the hanging ear is used to be separated from the tooling plate when deformed by force.

[0007] In an optional embodiment, the hanging ear includes a connecting portion and an extending portion, the connecting portion is connected to an edge of the bus, the extending portion is arranged at an angle to the connecting portion, and the extending portion is used to be hung on the tooling plate.

[0008] In an optional implementation, there are multiple hanging ears, and all of the multiple hanging ears are connected to the edge of the bus.

[0009] In an optional embodiment, the hanging ear and the busbar are integrally die-cast.

[0010] In an optional embodiment, the tooling plate is provided with a positioning hole, the shape of the positioning hole is adapted to the shape of the bus, the bus is arranged in the positioning hole, and the hanging ear is hung on the edge of the positioning hole.

[0011] In an optional embodiment, the inner side wall of the positioning hole is provided with a hanging groove, and the hanging ear is arranged in the hanging groove.

[0012] In an optional embodiment, there are plural numbers of the hanging slots and the hanging ears, and the plurality of hanging ears are disposed in the plurality of hanging slots in a one-to-one correspondence.

[0013] In an optional embodiment, the plurality of hanging grooves are symmetrically arranged about the positioning hole, and the plurality of hanging ears are symmetrically arranged about the bus.

[0014] In an optional embodiment, the number of the busbars and the number of the positioning holes are both plural, and the multiple busbars are disposed in the multiple positioning holes in a one-to-one correspondence.

[0015] In an optional embodiment, the welding inspection tool further includes a lifting ring, and the lifting ring is connected to the tool plate.

[0016] The beneficial effects of the welding inspection tooling provided by the embodiment of the utility model include: after the bus and the battery cell are welded, whether the welding is successfully completed can be judged by lifting the tooling plate and observing whether the hanging ears connected to the bus are detached from the tooling plate, which significantly improves the inspection efficiency, and the tooling plate can also play a role in welding protection, effectively improving the efficiency and quality of battery cell welding inspection, without too much manual participation, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a welding inspection tool provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of a bus structure provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the tooling plate structure provided in an embodiment of the utility model.

[0021] Icons: 10-welding inspection tooling; 100-bus; 200-hanging ear; 210-connecting part; 220-extension part; 300-tooling plate; 310-positioning hole; 320-hanging groove; 400-lifting ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Existing new energy battery modules have many problems in the inspection of battery cell welding. For example, although the traditional manual prying inspection can accurately and intuitively check the welding quality, it is very inefficient and increases labor costs. The new machine vision inspection technology is not mature enough at present, and it cannot achieve accurate inspection of poor solder joints, which is the most important aspect of battery cell welding, and is prone to missed inspections.

[0029] These problems are common in current battery cell welding inspections and have a significant impact on product production efficiency and quality.

[0030] Based on the above problems, an embodiment of the utility model provides a welding detection tool, which is particularly suitable for battery core welding detection.

[0031] See also Figures 1 to 3 The welding inspection tool 10 includes a busbar 100 , a hanging ear 200 and a tooling plate 300 .

[0032] The busbar 100 is connected to the hanging ear 200, and the busbar 100 is used for welding with the battery core; the hanging ear 200 is hung on the tooling plate 300, and is used for detaching from the tooling plate 300 when deformed by force.

[0033] In this embodiment, when it is hung on the tooling plate 300, on the one hand, the bus 100 can be positioned, that is, the bus 100 and the battery cell can be welded. After the welding is completed, the tooling plate 300 is lifted. If the welding between the battery cell and the bus 100 is normal, the bus 100 is subjected to the vertical downward gravity of the battery cell and the ear 200 is subjected to the vertical upward support force of the tooling plate 300. Since the deformation force of the ear 200 is less than the gravity of the battery cell, the ear 200 is deformed and separated from the tooling plate 300 in this case. In the case of a cold weld between the battery cell and the bus 100, the cold weld of the bus 100 and the battery cell will be separated when the tooling plate 300 is lifted.

[0034] It can be seen that after the bus 100 is welded to the battery cell, whether the welding is successfully completed can be judged by lifting the tooling plate 300 and observing whether the hanger 200 connected to the bus 100 is detached from the tooling plate 300. This can significantly improve the inspection efficiency while achieving the welding positioning of the bus 100. The tooling plate 300 can also play a role in welding protection, which effectively improves the efficiency and quality of battery cell welding inspection, does not require too much manual participation, and saves tooling costs.

[0035] In detail, the hanging ear 200 and the busbar 100 are integrally die-cast.

[0036] It can be understood that the die-casting process has low cost and simple process, which can reduce production costs and assembly steps.

[0037] It should be noted that the thickness and size can be adjusted accordingly according to the manufacturer's requirements for welding tensile force testing to meet the welding needs of different battery cells, thereby improving adaptability.

[0038] The tooling plate 300 is usually made of insulating material and has a certain structural strength to avoid breaking during the lifting process.

[0039] In order to realize batch inspection, there are multiple busbars 100, and the multiple busbars 100 are hung on the tooling plate 300 through the hanging ears 200, so that the welding of the multiple busbars 100 can be inspected at the same time, further improving the inspection efficiency.

[0040] In detail, the hanging ear 200 includes a connecting portion 210 and an extending portion 220 . The connecting portion 210 is connected to the edge of the busbar 100 . The extending portion 220 is arranged at an angle to the connecting portion 210 . The extending portion 220 is used to be hung on the tooling plate 300 .

[0041] In this embodiment, the connecting portion 210 is perpendicular to the surface of the bus 100 and extends in a vertically upward direction, and the extending portion 220 is perpendicular to the connecting portion 210 and extends in a direction away from the bus 100, thereby forming a hook shape, thereby facilitating the hanging ear 200 to be hung on the tooling plate 300.

[0042] Furthermore, there are multiple hanging ears 200 , and all of the multiple hanging ears 200 are connected to the edge of the busbar 100 .

[0043] In this embodiment, different numbers of hanging ears 200 can be arranged on the edge of the busbar 100 according to different welding requirements, so that a plurality of hanging ears 200 can be hung on the tooling plate 300 at the same time.

[0044] Specifically, as shown in the figure, there are two hanging ears 200 , and the two hanging ears 200 are symmetrically arranged at the two end edges of the busbar 100 in the length direction.

[0045] Furthermore, the tooling plate 300 is provided with a positioning hole 310 , the shape of the positioning hole 310 is adapted to the shape of the busbar 100 , the busbar 100 is arranged in the positioning hole, and the hanging ear 200 is hung on the edge of the positioning hole 310 .

[0046] In this embodiment, the busbar 100 is positioned by placing it in the positioning hole 310 , and the hook 200 is hung on the edge of the positioning hole 310 to support the busbar 100 and prevent the busbar 100 from passing directly through the positioning hole 310 .

[0047] Furthermore, a hanging groove 320 is provided on the inner side wall of the positioning hole 310 , and the hanging ear 200 is hung in the hanging groove 320 .

[0048] In this embodiment, a hanging groove 320 is provided on the inner edge of the positioning hole 310 so that the hanging ear 200 can be extended into the hanging groove 320, which can limit the hanging ear 200 in the horizontal direction, thereby improving the stability of the hanging ear 200 hanging on the tooling plate 300 and preventing the bus 100 from moving horizontally relative to the tooling plate 300.

[0049] Furthermore, there are multiple hanging slots 320 and multiple hanging ears 200, and the multiple hanging ears 200 are hung in the multiple hanging slots 320 in a one-to-one correspondence.

[0050] In this embodiment, the plurality of hanging ears 200 are respectively hung in the plurality of hanging grooves 320 , so as to further improve the stability of the bus bar 100 in the positioning hole 310 .

[0051] In detail, the plurality of hanging grooves 320 are symmetrically arranged with respect to the positioning hole 310 , and the plurality of hanging ears 200 are symmetrically arranged with respect to the busbar 100 .

[0052] As shown in the figure, there are two hanging ears 200 and two hanging grooves 320, and the two hanging ears 200 are symmetrically arranged at the two end edges about the bus 100, and the two hanging grooves 320 are symmetrically arranged about the positioning block, so that when the tooling plate 300 is lifted, the tooling plate 300 is subjected to balanced force under the action of the two hanging ears 200, thereby preventing the bus 100 from breaking.

[0053] Furthermore, there are plural bus bars 100 and plural positioning holes 310 , and the bus bars 100 are disposed in the positioning holes 310 in a one-to-one correspondence.

[0054] In this embodiment, multiple busbars 100 are respectively disposed in multiple positioning holes 310 on the tooling plate 300 to simultaneously position the multiple busbars 100 and to simultaneously inspect the welding of the multiple busbars 100, thereby further improving the inspection efficiency.

[0055] Furthermore, the welding inspection tool 10 also includes a lifting ring 400 , which is connected to the tool plate 300 .

[0056] In this embodiment, there are four lifting rings 400 , and the four lifting rings 400 are respectively disposed at four corners of the tooling plate 300 , so as to facilitate the lifting equipment to lift the tooling plate 300 .

[0057] In summary, the utility model provides a welding inspection tool 10. After the bus 100 is welded to the battery cell, whether the welding is successfully completed can be judged by lifting the tooling plate 300 and observing whether the hanging ear 200 connected to the bus 100 is detached from the tooling plate 300. In this way, the inspection efficiency is significantly improved while achieving the welding positioning of the bus 100. The tooling plate 300 can also play a role in welding protection, which effectively improves the efficiency and quality of battery cell welding inspection, does not require too much manual participation, and saves tooling costs.

[0058] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A welding inspection tool, characterized in that: Including busbar, mounting lugs and tooling plate; The busbar is connected to the hanging ear, and the busbar is used for welding with the battery core; the hanging ear is hung on the tooling plate, and the hanging ear is used to be separated from the tooling plate when deformed by force.

2. The welding inspection tool according to claim 1, characterized in that: The hanging ear includes a connecting portion and an extending portion, wherein the connecting portion is connected to the edge of the bus bar, the extending portion is arranged at an angle to the connecting portion, and the extending portion is used for hanging on the tooling plate.

3. The welding inspection tool according to claim 1, characterized in that: There are multiple hanging ears, and all of the hanging ears are connected to the edge of the bus.

4. The welding inspection tool according to claim 1, characterized in that: The hanging ear and the busbar are integrally die-cast.

5. The welding inspection tool according to claim 1, characterized in that: The tooling plate is provided with a positioning hole, the shape of the positioning hole is adapted to the shape of the bus bar, the bus bar is arranged in the positioning hole, and the hanging ear is hung on the edge of the positioning hole.

6. The welding inspection tool according to claim 5, characterized in that: The inner side wall of the positioning hole is provided with a hanging groove, and the hanging ear is arranged in the hanging groove.

7. The welding inspection tool according to claim 6, characterized in that: The number of the hanging slots and the number of the hanging ears are both multiple, and the multiple hanging ears are arranged in the multiple hanging slots in a one-to-one correspondence.

8. The welding inspection tool according to claim 7, characterized in that: The plurality of hanging grooves are symmetrically arranged with respect to the positioning hole, and the plurality of hanging ears are symmetrically arranged with respect to the bus bar.

9. The welding inspection tool according to claim 5, characterized in that: The number of the busbars and the positioning holes are both plural, and the plurality of busbars are arranged in the plurality of positioning holes in a one-to-one correspondence.

10. The welding inspection tool according to claim 1, characterized in that: The welding inspection tool also includes a lifting ring, which is connected to the tool plate.

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