Nickel sheet with thermistor protection window and integrated busbar

Abstract

The utility model relates to the field of new energy cells, in particular to a nickel sheet with a thermistor protection window and an integrated busbar. Comprising a fixing assembly which comprises a nickel sheet, a through hole formed in the nickel sheet and a windowing structure which is arranged in the through hole and forms a certain included angle with the nickel sheet, and further comprises a heat collection module which comprises a protection plate and an aluminum bar arranged on one side of the protection plate. The beneficial effects of the integrated busbar are that through arranging the nickel sheet, the through hole arranged on the nickel sheet, and the nickel sheet structure arranged in the through hole and forming a certain included angle with the nickel sheet, compared with the prior art, the integrated busbar can effectively save materials and processes, and prevents window folding angles from easily touching a real-mounted thermistor during real-mounting, thereby improving the reliability of the integrated busbar. And the thermistor is damaged.

Description

Technical Field

[0001] The utility model relates to the field of new energy battery cells, in particular to a nickel sheet and an integrated busbar with a thermistor protection window. Background Art

[0002] The nickel sheet of the integrated busbar CCS (Cells Contact System) is a key structural component connecting the battery cell and the battery protection board, playing the role of voltage acquisition. The traditional nickel sheet structure often has multiple folding angles in the window opening to protect the mounted thermistor.

[0003] Currently, in the field of CCS modules, the commonly used methods are printed circuit board (PCB) or flexible printed circuit (FPC) type. This method collects signals through connectors, PCB or FPC, nickel sheet structure and mounted thermistor NTC. Among them, the nickel sheet structure often has multiple folding angles in the window opening to protect the mounted thermistor, resulting in problems such as slightly higher material costs, and the folding angles of the window opening are likely to touch the mounted thermistor, causing damage to the thermistor. Summary of the Utility Model

[0004] In view of the above-mentioned technical problems existing in the excessive folding angles of the nickel sheet structure, the present utility model is proposed.

[0005] To solve the above technical problems, the present utility model provides the following technical solution: a nickel sheet with a thermistor protection window, which includes a fixing component, including a nickel sheet, a through hole opened on the nickel sheet, and a window opening structure disposed in the through hole and forming a certain angle with the nickel sheet.

[0006] As a preferred solution of the nickel sheet with a thermistor protection window of the present utility model, wherein: the end point of the window opening structure away from the nickel sheet is higher than the nickel sheet, and the angle between the window opening structure and the nickel sheet is an obtuse angle.

[0007] As a preferred solution of the nickel sheet with a thermistor protection window of the present utility model, wherein: there are two mirror-image window opening structures.

[0008] The beneficial effect of the nickel sheet with a thermistor protection window of the present utility model is that by setting the nickel sheet, the through hole opened on the nickel sheet, and the nickel sheet structure disposed in the through hole and forming a certain angle with the nickel sheet, it can effectively save materials and processes compared with the prior art.

[0009] Another object of the present utility model is to provide an integrated busbar, aiming to solve the problem of easy damage of the existing thermistor.

[0010] To solve the above technical problems, the present utility model further provides the following technical solution: An integrated busbar, which includes a nickel sheet having a thermistor protection window; and a heat collection module, including a protection plate and an aluminum bar disposed on one side of the protection plate.

[0011] As a preferred embodiment of the integrated busbar of the present utility model, wherein: a thermistor is provided on the end face of the protection plate, the position of the thermistor is within the windowing structure and the height of the thermistor is lower than the windowing structure.

[0012] The beneficial effect of the integrated busbar of the present utility model is that: through the windowing structure of the nickel sheet, the thermistor is placed in the nickel sheet, which can prevent the windowing fold angle from easily touching the mounted thermistor during actual installation, resulting in damage to the thermistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0014] Figure 1 It is a top view of the nickel sheet with a thermistor protection window in the present utility model and the nickel sheet of the integrated busbar.

[0015] Figure 2 It is an enlarged view of the fixed component of the nickel sheet with a thermistor protection window in the present utility model and the integrated busbar.

[0016] Figure 3 It is a sectional view of the nickel sheet with a thermistor protection window in the present utility model and the integrated busbar and a partial sectional enlarged view thereof.

[0017] Figure 4 It is a sectional view of the original nickel sheet product in the present utility model.

[0018] Figure 5 It is a comparison diagram of the original nickel sheet in the present utility model and the nickel sheet with a thermistor protection window and the integrated busbar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings of the specification.

[0020] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art may make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0021] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0022] Example 1, referring to Figures 1 to 5 , which is the first embodiment of the present utility model. This embodiment provides a nickel sheet with a thermistor protection window, including a fixing component 100, which includes a nickel sheet 101, a through hole 102 opened on the nickel sheet 101, and a windowing structure 103 disposed in the through hole 102 and forming a certain angle with the nickel sheet 101.

[0023] Preferably, the windowing structure 103 and the nickel sheet 201 itself are made of a single nickel sheet 201 and are fabricated by a single bending process. The nickel sheet 101 in the through hole 102 is directly bent at a certain angle (180° - α), which is the nickel sheet structure 103 in this article.

[0024] Preferably, referring to Figure 4 , Figure 4 is a traditional angled nickel sheet used in the prior art. First, after the nickel sheet is windowed, the nickel sheet is subjected to two bending processes to reserve a space Z for protecting the nickel sheet and filling heat-conducting glue. In the present utility model, a single bending process is used to bend the nickel sheet 101 in the through hole 102, reducing the number of bending times and thus saving the process.

[0025] Furthermore, referring to Figure 5 , the nickel sheet in the prior art is segmented. The bending length of the first segment is denoted as R2, and the bending length of the second segment is denoted as R1. The length of the windowing structure 103 in the present utility model is denoted as L1, and the length L1 is less than the sum of the bending length R2 of the first segment and the bending length R1 of the second segment. That is to say, the nickel windowing structure 103 adopted in the present utility model saves the cost of materials and prevents waste of materials;

[0026] Preferably, referring to Figure 5Lower part: In the prior art, the nickel sheet 101 is bent through two bending processes to form protection for the thermistor 203. In the present utility model, a single bending process is adopted. By bending the window structure 103 at a certain angle according to actual requirements, compared with the prior process that requires multiple bendings, the production efficiency is increased and the production cost is reduced.

[0027] Furthermore, in the prior art, the nickel sheet is processed by bending it twice to achieve an inverted L-shaped window as shown in Figure 4 to protect the thermistor 203. For the nickel sheet bent twice at 90° and bent once at less than 90°, the internal stress of the nickel sheet itself increases: during the bending process of the nickel sheet, it will be affected by the concentrated stress, resulting in an increase in internal stress. Especially in the case of two 90° bends, due to the larger bending angle, the degree of stress concentration is higher, which may lead to a decrease in the plastic deformation ability of the material. The service life of the nickel sheet is reduced. During each bending process, the nickel sheet will experience cyclic loading and release of stress. Multiple stress cycles may lead to the accumulation of fatigue damage, thereby reducing the fatigue life of the material. In the present utility model, a single bending method is adopted with a bending angle of (180° - α), where α is an obtuse angle. For the nickel sheet 101 itself, it can effectively reduce the deformation of the nickel sheet 101 and increase the strength and service life of the nickel sheet 201.

[0028] In summary, by setting the window structure 103 at a certain included angle, compared with the prior art, it can effectively save materials and processes.

[0029] Embodiment 2: Referring to Figures 1 to 5 , this is the second embodiment of the present utility model. This embodiment further provides an integrated busbar. It includes that the end point of the window structure 103 far from the nickel sheet 101 is higher than the nickel sheet 101, the included angle between the window structure 103 and the nickel sheet 101 is an obtuse angle, and there are two mirror-image window structures 103.

[0030] The heat collection module 200 includes a protection plate 201 and an aluminum bar 202 provided on one side of the protection plate 201.

[0031] A thermistor 203 is arranged on the end face of the protection plate 201. The position of the thermistor 203 is within the window structure 103 and the height of the thermistor 203 is lower than that of the window structure 103.

[0032] Preferably, the included angle between the nickel sheet structure 203 and the nickel sheet 201 is α, which is the bending angle of the nickel sheet structure 203, 90° < α < 180°, and the included angle α is an obtuse angle.

[0033] Among them, the size of the through hole 102 is larger than the size of the thermistor 203.

[0034] Preferably, the height of the window structure 103 is higher than that of the thermistor 203, that is, the window structure 103 completely encloses the thermistor 203, providing sufficient protection for the thermistor 203 and facilitating the subsequent application of glue.

[0035] Preferably, referring to Figure 3 , the glue guiding space 204 formed between the window structures 103, combined with Figure 3 and Figure 4 it can be seen that the glue guiding space 204 in the present utility model is much larger than the space Z, which is more conducive to the application of the heat-conducting glue and preventing the nickel sheet 201 from touching the thermistor 203 during the actual assembly process, resulting in damage to the thermistor 203.

[0036] In summary, after passing the thermistor 203 through the through hole 102, the window structure 103 of the nickel sheet 101 can be located above the thermistor 203 to protect the thermistor 203 and prevent the window folding angle from easily touching the mounted thermistor, resulting in damage to the thermistor.

[0037] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function in this disclosure, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangements of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0038] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0039] It should be understood that, in the development of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be routine work of design, manufacture, and production.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A nickel sheet with a thermistor protection window, characterized in that: Comprising, A fixing component (100), including a nickel sheet (101), a through hole (102) formed in the nickel sheet (101), and a window structure (103) disposed in the through hole (102) and at an angle to the nickel sheet (101).

2. The nickel sheet with a thermistor protection window as described in claim 1, wherein: The end point of the window structure (103) away from the nickel sheet (101) is higher than the nickel sheet (101), and the included angle between the window structure (103) and the nickel sheet (101) is an obtuse angle.

3. The nickel sheet with a thermistor protection window according to claim 2, characterized in that: There are two mirror - image - set window structures (103).

4. An integrated busbar, characterized in that: Comprising a nickel sheet having a thermistor protection window according to any one of claims 1 to 3; and a heat - collecting module (200), including a protection plate (201) and an aluminum bar (202) disposed on one side of the protection plate (201).

5. The integrated busbar according to claim 4, wherein: A thermistor (203) is disposed on the end face of the protection plate (201), the position of the thermistor (203) is within the window structure (103), and the height of the thermistor (203) is lower than that of the window structure (103).

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