Novel busbar structure

Abstract

The utility model discloses a novel busbar structure, and relates to the technical field of welding seam detection. The busbar structure comprises a busbar body, wherein a welding groove is formed in the middle of the busbar body; the electrode lug is of an L-shaped structure, the electrode lug comprises a vertical part and a horizontal part which are integrally arranged, the vertical part of the electrode lug is welded on the groove wall of the welding groove, and the horizontal part of the electrode lug is arranged above the busbar body and is parallel to the upper surface of the busbar body; the warping detection grooves are formed in the two sides of the welding groove, and the warping detection grooves are formed in the positions, corresponding to the two ends of the tab, of the non-side of the welding groove. According to the utility model, the probing depth and the warping detection angle of the warping detection tool are fixedly controlled through the warping detection groove arranged at the position, corresponding to the edge of the tab, on the busbar main body, so that the consistency of the operation process is realized, and the accuracy of welding seam detection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of weld detection, in particular to a novel busbar structure. Background Art

[0002] At present, the structure of the busbar of the traditional soft-pack module is that the surface of the busbar is a flat surface without a buckle groove, and the tab covers the surface of the busbar and fits completely without a gap ( Figure 1 ). After welding, a warping inspection tool is used to warp the tab to observe whether the weld of the tab is broken to judge whether there is a false weld.

[0003] Since there is no gap between the tab and the busbar, the depth of penetration of the warping inspection tool and the warping inspection angle cannot be effectively controlled during the operation process, and the operation consistency of the operator cannot be guaranteed. There are often phenomena of missed inspection due to a small warping inspection angle or damage to the product due to an excessive warping inspection angle. Summary of the Utility Model

[0004] Therefore, an embodiment of the utility model provides a novel busbar structure to solve the above technical problems.

[0005] In order to achieve the above object, the embodiment of the utility model provides the following technical solutions:

[0006] A novel busbar structure includes:

[0007] A busbar body, in which a welding groove is formed in the middle of the busbar body;

[0008] A tab, the tab is of an L-shaped structure, the tab includes a vertical part and a horizontal part which are integrally arranged, the vertical part of the tab is welded to the groove wall of the welding groove, and the horizontal part of the tab is placed above the busbar body and is parallel to the upper surface of the busbar body;

[0009] Warping inspection grooves, the warping inspection grooves are formed on both sides of the welding groove, and warping inspection grooves are formed at positions corresponding to both ends of the tab on each side.

[0010] Optionally, positioning holes are arranged in the middle of both ends of the welding groove.

[0011] Optionally, the warping inspection groove is a square groove.

[0012] Optionally, the depth of the warping inspection groove is 2 mm, and the length and width are both 5 mm.

[0013] Optionally, the distance between the horizontal part of the tab and the upper surface of the busbar is 1-2 mm.

[0014] Optionally, the projection of the tab on the busbar is located in the middle of the warping inspection groove.

[0015] The utility model has at least the following beneficial effects:

[0016] The utility model realizes the consistency of the operation process and ensures the accuracy of weld inspection by setting a warping inspection groove at a position corresponding to the edge of the tab on the main body of the bus bar to fixedly control the penetration depth and warping inspection angle of the warping inspection tool. Description of the Drawings

[0017] In order to more clearly illustrate the prior art and the present utility model, the drawings required for describing the prior art and the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings in the following description are only exemplary, and those of ordinary skill in the art can also obtain other drawings according to the provided drawings without creative efforts.

[0018] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Any modification of the structure, change of the proportional relationship, or adjustment of the size should still fall within the scope covered by the technical content disclosed in the present utility model without affecting the effects that the present utility model can produce and the purposes that can be achieved.

[0019] Figure 1 It is a schematic structural diagram of the existing tab completely fitting on the surface of the bus bar;

[0020] Figure 2 It is a schematic structural diagram of a first perspective of an embodiment of the present utility model.

[0021] Description of the Reference Numerals:

[0022] 1. Bus bar body; 2. Tab; 3. Warping inspection groove; 4. Positioning hole. Detailed Embodiment

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above drawings are intended to distinguish the objects being referred to. For a solution with a time sequence process, this way of term expression does not necessarily need to be understood as describing a specific order or sequence, and for a solution of a device structure, this way of term expression also does not distinguish the importance level, positional relationship, etc.

[0025] In addition, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units need not be limited to those steps or units that are expressly listed, but may also include other steps or units that are inherent to those processes, methods, products or devices although not expressly listed, or steps or units added based on further optimization solutions conceived in the present utility model.

[0026] As Figure 2 shown, a novel busbar structure disclosed by the present utility model, a busbar body 1, a welding groove is provided in the middle of the busbar body 1;

[0027] A tab 2, the tab 2 is of an L-shaped structure, the tab 2 includes a vertical portion and a horizontal portion integrally provided, the vertical portion of the tab 2 is welded to the groove wall of the welding groove, and the horizontal portion of the tab 2 is placed above the busbar body 1 and is parallel to the upper surface of the busbar body 1;

[0028] A warpage inspection groove 3, the warpage inspection groove 3 is provided on both sides of the welding groove, and a warpage inspection groove 3 is provided at a position corresponding to both ends of the tab 2 on each side.

[0029] The above-mentioned warpage inspection groove 3 is a buckle groove with a depth of about 2 mm and a length and width of about 5 mm at the contact position between the edge of the tab 2 and the busbar body 1, which is convenient for the warpage inspection tool to penetrate, effectively controls the warpage inspection angle, and can quickly detect the weld quality.

[0030] For the installation of the above-mentioned tab 2, a groove with a depth of about 2 mm and a length and width of about 5 mm is left at the contact position between the edge of the tab 2 and the busbar, and the vertical portion is welded in the welding groove on the busbar main body.

[0031] Positioning holes 4 are provided in the middle of both ends of the welding groove.

[0032] The positioning holes 4 on the busbar body 1 facilitate the module CCD to take pictures to determine the weld position;

[0033] It can effectively reduce the operation difficulty and improve the weld inspection efficiency.

[0034] The warpage inspection groove 3 is a square groove.

[0035] The depth of the warpage inspection groove 3 is 2 mm, and the length and width are both 5 mm.

[0036] The distance between the horizontal portion of the tab 2 and the upper surface of the busbar is 1-2 mm.

[0037] The projection of the tab 2 on the busbar is located in the middle of the warpage inspection groove 3

[0038] In the present invention, a buckle groove is provided at the contact between the edge of the tab 2 and the bus bar, and the penetration depth and the angle of the warping inspection tool are fixedly controlled to achieve the consistency of the operation process, so as to ensure the accuracy of the weld inspection.

[0039] The specific operation process of this application is as follows: after the welding of the tab 2 of the soft-pack battery module is completed, the welding quality of the tab 2 is detected by automatic and manual schemes respectively. The automatic detection scheme mainly uses a CCD camera to take pictures and compare the surface of the weld. The manual inspection station mainly uses a jig for warping inspection manually to determine whether there is a false weld. A novel bus bar structure for a soft-pack battery disclosed in this application. The main feature is that it is applicable to the welding of the tab 2 of the soft-pack battery module and can be applicable to the soft-pack battery. The main characteristics are: by using this novel bus bar structure, the penetration depth and the angle of the warping inspection tool are effectively fixed through the reserved deep groove, effectively controlling the convenience and consistency of the operation process of the weld inspection.

[0040] The above several specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

[0041] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written out should also be considered to be within the scope described in this specification.

[0042] In the above text, the present utility model has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be noted that, without departing from the concept of the present utility model, it is obvious that several deformations and improvements can still be made to these specific embodiments, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the appended claims.

Claims

1. A new busbar structure, characterized in that: include: A busbar body, wherein a welding groove is provided in the middle of the busbar body; The pole lug is an L-shaped structure, and the pole lug includes a vertical portion and a horizontal portion that are integrally arranged, the vertical portion of the pole lug is welded to the slot wall of the welding slot, and the horizontal portion of the pole lug is placed above the busbar body and parallel to the upper surface of the busbar body; The warping inspection grooves are arranged on both sides of the welding groove, and warping inspection grooves are arranged at positions corresponding to the two ends of the pole lugs on each side.

2. A new busbar structure according to claim 1, characterized in that: Positioning holes are arranged in the middle of both ends of the welding groove.

3. A new busbar structure according to claim 1, characterized in that: The warping inspection groove is a square groove.

4. The novel busbar structure according to claim 1 is characterized in that: The depth of the warping inspection groove is 2 mm, and the length and width are both 5 mm.

5. The novel busbar structure according to claim 1 is characterized in that: The distance between the horizontal portion of the pole lug and the upper surface of the busbar is 1-2 mm.

6. A new busbar structure according to claim 1, characterized in that: The projection of the pole ear on the busbar is located in the middle of the warping inspection groove.

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