Insulating protective cover and battery module

Abstract

The utility model provides an insulating protective cover, which comprises a main body and limiting parts, and the limiting parts are arranged on two opposite sides of the main body and are fixedly connected with the main body. The main body comprises a first end and a second end which are oppositely arranged, a first groove extending towards the second end is formed in the middle of the first end, and the part, between the first groove and the limiting part, of the main body vertically extends downwards to form a first lower edge. The protective cover is limited and fixed through the limiting part, so that the protective cover is matched with the structure of the end plate and is detachably connected with the end plate. Meanwhile, a first groove is formed in the middle of the protective cover, so that the protective cover can adapt to different types of conforming end plates.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell manufacturing, in particular to an insulating protection cover and a battery module. Background Art

[0002] At present, most of the insulating protection covers commonly used in battery modules of energy storage systems are made of plastic materials such as PC or PBT. They are usually used in cooperation with insulating bases. The solutions are mature but lack flexibility. Most of these protection covers are designed to cooperate with insulating bases of the same specifications and cannot independently adapt to diverse installation conditions, nor can they be compatible with new composite material end plates, which to a certain extent limits their application in energy storage systems. In addition, the installation method of traditional insulating protection covers is not convenient enough. It is necessary to install the insulating base first and then the protection cover, with cumbersome and time-consuming operations. At the same time, due to size limitations, it is difficult for traditional protection covers to cover the upper part of all electrical components connected to the end plate, presenting certain safety hazards. Especially in a high-voltage environment, arc discharge is likely to occur, causing safety accidents. With the increasing requirements for safety and lightweight of battery modules in energy storage systems, composite material end plates are gradually replacing aluminum end plates and becoming the mainstream trend.

[0003] However, the existing insulating protection covers cannot meet the needs of new composite material end plates, and there is an urgent need to develop new insulating protection covers to adapt to the development of energy storage systems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an insulating protection cover adapted to a new composite material end plate.

[0005] In a first aspect, the utility model provides an insulating protection cover, which includes: a main body and a limiting part. The limiting part is disposed on two opposite sides of the main body and fixedly connected to the main body;

[0006] The main body includes a first end and a second end which are oppositely arranged. A first groove extending towards the second end is provided in the middle of the first end. The main body between the first groove and the limiting part extends vertically downward to form a first lower edge.

[0007] Further, the second end extends vertically downward to form a second lower edge, and a second groove extending towards the second end is provided in the middle of the second lower edge.

[0008] Further, the height of the first lower edge is 5 mm - 7 mm, and the height of the second lower edge is 5 mm - 7 mm.

[0009] Further, the limiting part includes an extension piece and a clamping piece. One end of the extension piece is connected to the main body, and the other end is connected to the clamping piece;

[0010] One end of the clamping member away from the extension extends towards the direction of the first groove to form a clamping end. Further, the height of the limiting portion is 20 mm - 30 mm.

[0011] Further, the main body includes a first surface located between the limiting portions, and a support member is provided on the first surface, and the support member is fixedly connected to the first surface.

[0012] Further, an insulating cylinder is also provided on the first surface, and the insulating cylinder is placed between the first lower edge and the second lower edge.

[0013] Further, there are two insulating cylinders, and the insulating cylinders are fixedly connected to the support member.

[0014] In a second aspect, the present utility model further provides a battery module, which adopts the insulating protection cover as described in any one of the above, and further includes: a fastener, an end plate, a bus bar, and a battery pole;

[0015] The fastener is placed inside the insulating cylinder, the battery pole is placed between the bus bar and the end plate, and the bus bar and the battery pole are fixedly connected to the end plate through the fastener.

[0016] Further, a clamping groove matching the clamping member is provided on the side wall at one end of the end plate, and the clamping groove is detachably connected to the clamping member for fixing the insulating protection cover.

[0017] Compared with the prior art, the present utility model has at least the following beneficial effects: The protection cover is limited and fixed by the limiting portion, so that it is adapted to the structure of the mating end plate and is detachably connected. At the same time, a first groove is provided in the middle of the protection cover to adapt to different models of mating end plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the insulating protection cover in the present utility model;

[0020] Figure 2 It is an exploded structural diagram of an embodiment of the battery module of the present utility model;

[0021] Figure 3 For Figure 2 The overall structural diagram of the shown embodiment;

[0022] Figure 4 It is an exploded view structure diagram of another embodiment of the battery module of the present utility model;

[0023] Figure 5 is Figure 4 the overall structure diagram of the embodiment shown.

[0024] Wherein, 100 - protective cover; 101 - first groove; 102 - first lower edge; 103 - insulating cylinder; 104 - clamping member; 105 - support member; 106 - second groove; 200 - fastener; 300 - busbar; 400 - end plate; 401 - card slot; 500 - battery electrode; 600 - port. Specific embodiments

[0025] The following will describe an insulating protective cover and a battery module of the present utility model in more detail with reference to the schematic diagrams, in which the preferred embodiments of the present utility model are shown. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation to the present utility model.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0028] In the first aspect, the present utility model provides an insulating protective cover. Please refer to Figure 1 and Figure 2 , the insulating protective cover 100 includes: a main body and a limiting portion, and the limiting portion is disposed on opposite sides of the main body and fixedly connected to the main body;

[0029] The main body includes a first end and a second end that are oppositely arranged. A first groove 101 extending toward the second end is provided in the middle of the first end. A first lower edge 102 is formed by the main body between the first groove 101 and the limiting portion extending vertically downward.

[0030] Specifically, please refer to Figure 1 , the protective cover 100 includes a main body and two limiting portions. The limiting portions are located on both sides of the main body and are fixed thereto to ensure that the protective cover can be correctly positioned and fixed during installation.

[0031] The structure of the main body includes two opposite first ends and second ends, as Figure 1 shown, that is, the two side edges of the main body without the limiting portions. In the middle of the first end of the main body, there is a first groove 101 extending toward the second end (i.e., toward the middle of the main body). The first groove 101 enables the protective cover to better adapt to the end plates of battery modules with different shapes. In this embodiment, the first groove 101 is formed by the middle of the first end of the main body extending 2 mm - 3 mm toward the second end. Preferably, in this embodiment, the width of the first groove is 2 mm.

[0032] The main body portion between the first groove 101 and the limiting portion extends vertically downward to form a first lower edge 102. The first lower edge 102 helps the protective cover to cover the battery module more firmly and provides effective insulation protection.

[0033] Furthermore, the second end extends vertically downward to form a second lower edge, and a second groove 106 extending toward the second end is provided in the middle of the second lower edge.

[0034] Specifically, the second end of the main body also extends vertically downward to form a second lower edge. At the middle position of the second lower edge, there is a second groove 106 extending toward the second end. Such a structural design helps to improve the adaptability and stability of the protective cover, enabling it to fit more closely to the end plates of battery modules with different shapes, and at the same time ensuring that the electrical connection part is fully covered and protected. The height of the second groove 106 is 2 mm - 4 mm, and preferably the height of the second groove 106 is 3 mm in this embodiment.

[0035] Furthermore, the height of the first lower edge is 5 mm - 7 mm, and the height of the second lower edge is 5 mm - 7 mm.

[0036] Specifically, in this embodiment, preferably the height of the first lower edge is 6 mm, and the height of the second lower edge is 6 mm.

[0037] Furthermore, the limiting portion includes an extension and a clamping member 104. One end of the extension is connected to the main body, and the other end is connected to the clamping member 104;

[0038] One end of the clamping member 104 away from the extension extends towards the direction of the first groove 101 to form a clamping end.

[0039] Specifically, please continue to refer to Figure 1 . One end of the extension is connected to the main body, and the other end is connected to the clamping member 104. Such a design enables the limiting portion to be effectively connected to the main body structure and provides additional stability.

[0040] The clamping member 104 is located at one end of the extension away from the main body, and the other end of the clamping member 104 extends towards the direction of the first groove to form a clamping end. The design of this clamping end allows the protective cover to be clamped at a specific part of the battery module, ensuring that the protective cover can be firmly positioned after installation, preventing displacement due to vibration or other external forces, and thus providing continuous and reliable insulation protection. Such a structure not only enhances the stability of the protective cover but also makes the installation process more convenient.

[0041] In a possible embodiment of the present utility model, there are four clamping members 104 in total, and two clamping members 104 are respectively connected below each extension. Those skilled in the art can replace the number of clamping members 104 by themselves, which can be two, four, or more.

[0042] Furthermore, the height of the limiting portion is 20 mm - 30 mm. Preferably, in this embodiment, the height of the limiting portion is 23 mm.

[0043] Furthermore, the main body includes a first surface, the first surface is located between the limiting portions, and a support member 105 is provided on the first surface, and the support member 105 is fixedly connected to the first surface.

[0044] Specifically, in this embodiment, the main body portion includes a first surface located between the limiting portions. A support member 105 is provided on the first surface, and the support member 105 is fixedly connected to the first surface. Such a design enhances the structural strength and stability of the protective cover, enabling it to better resist external forces and prevent deformation. At the same time, the support member 105 can also provide an additional insulating layer, further improving electrical safety. This structural design helps the protective cover play a more stable and reliable insulation protection role in the battery module, ensuring the safe operation of the battery module. In this embodiment, preferably, the support member 105 is a reinforcing rib.

[0045] Furthermore, an insulating cylinder 103 is also provided on the first surface, and the insulating cylinder 103 is placed between the first lower edge 102 and the second lower edge.

[0046] Furthermore, there are two insulating cylinders 103, and the insulating cylinders 103 are fixedly connected to the support member 105.

[0047] Specifically, in a possible embodiment of the present utility model, the first surface is not only provided with a support member 105, but also equipped with an insulating cylinder 103. The position of the insulating cylinder 103 is between the first lower edge and the second lower edge. Such a layout enables the insulating cylinder to effectively cover the end plate of the battery module and related electrical connections, providing more comprehensive insulation protection.

[0048] In this embodiment, it is preferably provided with two insulating cylinders. The insulating cylinder 103 not only enhances the stability of the insulating cylinder, but also ensures that the electrical connection part is fully isolated, thereby reducing the risk of electrical faults. It improves the insulation performance of the entire protective cover and further enhances the safety and reliability of the battery module.

[0049] In a second aspect, the present utility model further provides a battery module. Please refer to Figures 2 - 5 , which adopts the insulating protective cover 100 described in any one of the above, and further includes: a fastener 200, an end plate 400, a bus bar 300, and a battery pole 500.

[0050] The fastener 200 is placed inside the insulating cylinder 103. The battery pole 500 is placed between the bus bar 300 and the end plate 400. The bus bar 400 and the battery pole 500 are fixedly connected to the end plate 400 through the fastener 200.

[0051] Specifically, this battery module adopts the aforementioned insulating protective cover 100. The fastener 200 is located inside the insulating cylinder 103 and is used to fix and connect other parts of the battery module. The battery pole 500 is located between the bus bar 300 and the end plate 400, and the bus bar 300 and the battery pole 500 are fixedly connected to the end plate 400 through the fastener 200. Such a design makes the battery module more stable and also ensures the secure and reliable connection between the battery pole 500 and the bus bar 300.

[0052] In this embodiment, the bus bar 300 is selected as a bus bar copper row. Inside the battery module, each battery cell generates a certain amount of current. The bus bar copper row 300 collects the currents of multiple battery cells to form a larger current output. The battery pole 500 is selected as a CCS output pole aluminum row, which is the electrode responsible for outputting direct current in the battery module. It is connected to the bus bar 300 to output the current collected inside the battery module to the external circuit.

[0053] The fastener 200 can be selected as a fastening bolt, and those skilled in the art can also choose other fasteners for fixed connection.

[0054] Overall, the design of this battery module not only improves the structural stability of the battery module, but also enhances the insulation performance and safety of the battery module by adopting an insulating protective cover, thereby improving the overall performance and reliability of the battery module.

[0055] Furthermore, a clamping groove 401 matching the clamping member 104 is provided on the side wall at one end of the end plate 400. The clamping groove 401 is detachably connected to the clamping member 104 for fixing the insulating protective cover 100.

[0056] Specifically, a clamping groove 401 matching the clamping member 104 of the insulating protective cover is provided on the side wall at one end of the end plate 400. This clamping groove 401 is detachably connected to the clamping member 104 and is used to fix the insulating protective cover 100. Such a design allows the insulating protective cover 100 to be conveniently installed on the end plate and also easily removed, facilitating the maintenance and repair of the battery module. Through this structure, the insulating protective cover 100 can stably cover the battery module, providing effective insulation protection and ensuring the safe operation of the battery module.

[0057] Please refer to Figure 2 , which is a schematic structural diagram of the battery module according to one embodiment of the present invention. In this embodiment, the battery module further includes a port 600, and the port 600 is placed in the gap between the end plate 400 and the main body of the protective cover 100. The battery pole 500 and the bus bar 300 are fixed on the end plate 400 through the fasteners 200.

[0058] After installing the battery pole 500, the bus bar 300 and the port 600 on the end plate 400, the insulating protective cover 100 is clamped on the end plate 400, and the clamping end on the insulating protective cover 100 is engaged with the clamping groove 401 on the end plate 400. The schematic diagram after installation is as shown in Figure 3 .

[0059] Please refer to Figure 4 , which is a schematic structural diagram of the battery module according to another embodiment of the present invention. Different from the structure shown in Figure 2 , this embodiment does not include the port 600. At the same time, the bus bar 300 in this embodiment adopts a different structure from that in the first embodiment, but the installation method of the battery module is the same as that in the first embodiment.

[0060] The schematic diagram after installation of this embodiment is as shown in Figure 5 . It can be seen from the figure that the insulating protective cover 100 can adapt to different components.

[0061] In summary, in the present utility model, the main body of the protective cover includes two opposite first ends and second ends, as well as limiting portions on both sides, ensuring that the protective cover can be correctly positioned and fixed during installation, and improving the structural stability. The design of the first groove and the second groove enables the protective cover to better adapt to the end plates of battery modules with different shapes, providing more comprehensive coverage and protection.

[0062] At the same time, a support member and an insulating cylinder are provided. These components not only enhance the structural strength of the protective cover but also provide an additional insulating layer, improving electrical safety. The snap-fit design of the protective cover allows it to be easily installed on the end plate and also easily removed, facilitating the maintenance and repair of the battery module. The design of the protective cover enables it to adapt to different battery module components, such as different busbar structures, improving its applicability.

[0063] The above uses specific examples to elaborate on the present utility model, which is only used to help understand the present utility model and does not limit the present utility model. For those skilled in the technical field to which the present utility model belongs, based on the idea of the present utility model, several simple deductions, deformations or replacements can also be made.

Claims

1. An insulating protective cover, characterized in that, The insulating protection cover includes: a main body and a limiting part, and the limiting part is arranged on two opposite sides of the main body and fixedly connected to the main body; The main body includes a first end and a second end which are arranged opposite to each other. A first groove extending towards the second end is provided in the middle of the first end. A first lower edge is formed by the main body between the first groove and the limiting part extending vertically downwards.

2. The insulating protection cover according to claim 1, wherein The second end extends vertically downwards to form a second lower edge, and a second groove extending towards the second end is provided in the middle of the second lower edge.

3. The insulating protection cover according to claim 2, characterized in that, The height of the first lower edge is 5 mm - 7 mm, and the height of the second lower edge is 5 mm - 7 mm.

4. The insulating protection cover according to claim 1, wherein, The limiting part includes an extension piece and a clamping piece. One end of the extension piece is connected to the main body, and the other end is connected to the clamping piece; A clamping end extends towards the direction of the first groove at one end of the clamping piece away from the extension piece.

5. The insulating protection cover according to claim 4, characterized in that, The height of the limiting part is 20 mm - 30 mm.

6. The insulating protection cover according to claim 1, wherein, The main body includes a first surface which is located between the limiting parts. A support piece is provided on the first surface, and the support piece is fixedly connected to the first surface.

7. The insulating protection cover according to claim 6, characterized in that, An insulating cylinder is also provided on the first surface, and the insulating cylinder is arranged between the first lower edge and the second lower edge.

8. The insulating protection cover according to claim 7, characterized in that, There are two insulating cylinders, and the insulating cylinders are fixedly connected to the support piece.

9. A battery module, characterized in that, When using the insulating protection cover according to any one of claims 1 - 8, it further includes: a fastener, an end plate, a busbar and a battery electrode; The fastener is arranged in the insulating cylinder. The battery electrode is arranged between the busbar and the end plate, and the busbar and the battery electrode are fixedly connected to the end plate through the fastener.

10. The battery module according to claim 9, wherein A clamping groove matching the clamping piece is provided on the side wall at one end of the end plate. The clamping groove is detachably connected to the clamping piece for fixing the insulating protection cover.

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