Battery module protection plate, battery module and electric equipment

Abstract

The utility model relates to a battery module protection plate, a battery module and electric equipment, and the battery module protection plate comprises a plurality of plate bodies which are mutually connected to form a surrounding space; the first insulation layer is attached to at least part of the plate bodies and covers part of the surfaces of at least part of the plate bodies, the edge portion of the first insulation layer is bent away from the plate bodies to form a bent portion, the bent portion is arranged on at least one plate body and is adjacent to the adjacent plate body, and the bent portion extends to the surrounding space. According to the battery module protection plate provided by the invention, the quality problem of the battery module caused by difficulty in controlling the glue consumption between adjacent plate bodies can be solved.

Description

Technical Field

[0001] The present disclosure relates to the field of battery technology, and in particular, to a battery module protective plate, a battery module and an electrical device. Background Art

[0002] The battery module is a battery assembly composed of multiple battery cells and is an important component of electric vehicles. The battery module includes side panels and end panels arranged in pairs, which together enclose a storage space in which the battery cell assembly is arranged. The side panels and end panels are bonded and fixed to the battery cell assembly by structural adhesive, and the side panels and end panels are fixed by welding.

[0003] In the above process, the amount of glue needs to be strictly controlled when bonding the side panel to the battery cell. If the amount of glue is too small, one or two battery cells at the end may not be spread with glue and cannot be effectively fixed, resulting in a great possibility of displacement during vibration and impact, and ultimately causing FPC tearing, NTC detachment and other related side effects; if the amount of glue is too large, the welding area between the rear panel and the side panel after spreading the glue will cause glue overflow, resulting in welding failure, such as holes, cold solder joints, etc. Utility Model Content

[0004] The purpose of the present disclosure is to provide a battery module protection plate, which can solve the quality problem of the battery module caused by the difficulty in controlling the amount of glue used between adjacent plates.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a battery module protective plate, which includes: a plurality of plate bodies, which are interconnected to form an enclosed space; and a first insulating layer, which is attached to at least a portion of the plate bodies and covers a portion of the surface of at least a portion of the plate bodies, and the edge of the first insulating layer is bent away from the plate body to form a bending portion, and the bending portion is arranged on at least one of the plate bodies and is adjacent to the adjacent plate body, and the bending portion extends to the enclosed space.

[0006] Optionally, the multiple plates include two first plates arranged opposite to each other and two second plates arranged opposite to each other, the two first plates and the two second plates are connected to form the enclosed space, the bending portion is arranged on one of the first plate and the second plate and is adjacent to the other, and the bending portion extends to the enclosed space.

[0007] Optionally, the battery module guard plate also includes a side plate and an end plate, the side plate is used as the first plate body, the end plate is used as the second plate body, the bending portion is arranged on the side plate, and / or the bending portion is arranged on the end plate.

[0008] Optionally, the bending portions include two, and the two bending portions are symmetrically arranged on two sides of the first insulating layer.

[0009] Optionally, the bending portion is perpendicular to the plate body.

[0010] Optionally, the board body includes a board body and an edge connecting portion arranged at an edge of the board body, and the first insulating layer is attached to the board body and covers a portion of the surface of the board body.

[0011] Optionally, a height dimension of the edge connection portion in the first direction is smaller than a height dimension of the plate body in the first direction.

[0012] Optionally, the plate body has a first surface and a second surface that are arranged opposite to each other, and the first insulating layer is attached to the first surface and folded to the second surface.

[0013] Optionally, the battery housing further includes a second insulating layer, and the second insulating layer is attached to the bending portion.

[0014] Optionally, the first insulating layer is configured as a PET insulating layer, and / or the second insulating layer is configured as a PET insulating layer.

[0015] On the basis of the above technical solution, the present disclosure further provides a battery module, which includes a battery cell assembly and the above battery module guard plate, and the battery cell assembly is accommodated in an enclosed space formed by the battery module guard plate.

[0016] On the basis of the above technical solution, the present disclosure further provides an electrical device, which includes the above battery module.

[0017] Through the above technical scheme, in the battery module protective plate provided by the present invention, by affixing a first insulating layer on at least a portion of the plate body and making the first insulating layer cover a portion of the surface of at least a portion of the plate body, it is achieved that when the plate body is applied to the battery module, the plate body can be in contact with the battery cell assembly through the surface affixed with the first insulating layer, so that the battery cell assembly and the plate body can be effectively insulated, thereby ensuring the safety of the battery module; by bending the edge of the first insulating layer away from the plate body to form a bending portion, the bending portion is arranged on at least one plate body and is adjacent to the adjacent plate body, and the bending portion is extended to the enclosed space formed by a plurality of plates connected to each other, it is achieved that when the plate body affixed with the first insulating layer is applied to the battery module, the bending portion can be inserted between the adjacent plate body and the battery cell assembly, so as to prevent the glue from overflowing to the welding area between the adjacent plates, thereby avoiding the influence of the welding connection between the adjacent plates due to the overflow of glue.

[0018] Specifically, the battery cell assembly and the plate body are bonded and connected by glue (such as structural glue, etc.), and the adjacent plate bodies are welded. When the amount of glue used is too large, the glue will overflow to the welding area between the adjacent plate bodies, thereby affecting the welding connection between the adjacent plate bodies. If the amount of glue used is reduced, there will be a problem of unreliable welding between the plate body and the battery cell assembly. Therefore, the present disclosure can ensure the amount of glue used by providing a bending portion between two adjacent plate bodies, thereby avoiding the problem of unreliable bonding caused by too little glue. At the same time, it can also block the excess glue generated by excessive glue use between the plate body to be bonded and the battery cell assembly, thereby avoiding this part of the glue overflowing to between another adjacent plate body and the welding area of ​​the plate body and affecting the welding quality, thereby improving the product quality of the battery module.

[0019] Therefore, when the battery module protection plate disclosed in the present invention is applied to a battery module, it can not only ensure the safety of the battery module, but also ensure the product quality of the battery module.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 It is a schematic structural diagram of a plate body in a battery module guard plate disclosed in the present invention;

[0023] Figure 2 is another structural schematic diagram of the plate body in the battery module guard plate disclosed in the present invention;

[0024] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 It is another structural schematic diagram of the plate body in the battery module guard plate disclosed in the present invention;

[0026] Figure 5 is a schematic structural diagram of a battery module disclosed herein;

[0027] Figure 6 It is an exploded view of the battery module disclosed in the present invention.

[0028] Description of Reference Numerals

[0029] 1-battery module guard plate; 11-board body; 11a-first surface; 11b-second surface; 11c-board body; 11d-edge connection part; 111-first board body; 112-second board body; 12-first insulating layer; 121-bending part; 13-second insulating layer; 14-side plate; 15-end plate; 16-end cover; 2-battery cell assembly. DETAILED DESCRIPTION

[0030] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0031] In the present disclosure, unless otherwise specified, directional words such as "inside" and "outside" refer to "inside" and "outside" relative to the corresponding component's own contour. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0032] The present disclosure provides a battery module guard plate 1, referring to Figures 1 to 6 As shown in the figure, the battery module guard plate 1 includes: a plurality of plates 11, which are interconnected to form an enclosed space; and a first insulating layer 12, which is attached to at least a portion of the plate 11 and covers a portion of the surface of at least a portion of the plate 11, and the edge of the first insulating layer 12 is bent away from the plate 11 to form a bending portion 121, and the bending portion 121 is arranged on at least one plate 11 and is adjacent to the adjacent plate 11, and the bending portion 121 extends to the enclosed space.

[0033] Through the above technical solution, in the battery module protective plate 1 provided by the present disclosure, by attaching the first insulating layer 12 on at least part of the plate body 11 and making the first insulating layer 12 cover at least part of the surface of the plate body 11, it is achieved that when the plate body 11 is applied to the battery module, the plate body 11 can be in contact with the battery cell assembly 2 through the surface attached with the first insulating layer 12, so that the battery cell assembly 2 and the plate body 11 can be effectively insulated, thereby ensuring the safety of the battery module; by making the edge of the first insulating layer 12 bend away from the plate body 11 The bending portion 121 is folded to form a bending portion 121, which is arranged on at least one plate body 11 and is adjacent to the adjacent plate body 11, and the bending portion 121 extends to the enclosed space formed by the plurality of plate bodies 11 being connected to each other, so that when the plate body 11 provided with the first insulating layer 12 is applied to the battery module, the bending portion 121 can be inserted between the adjacent plate body 11 and the battery cell assembly 2, so as to prevent the glue from overflowing to the welding area between the adjacent plate bodies 11, thereby avoiding the influence of the welding connection between the adjacent plate bodies 11 due to the overflow of glue.

[0034] Specifically, the battery cell assembly 2 and the plate body 11 are bonded and connected by glue (such as structural glue, etc.), and the adjacent plate bodies 11 are welded and connected. When the amount of glue used is too large, the glue will overflow to the welding area between the adjacent plate bodies 11, thereby affecting the welding connection between the adjacent plate bodies 11. If the amount of glue used is reduced, there will be a problem of unreliable welding between the plate body 11 and the battery cell assembly 2. Therefore, the present disclosure can ensure the amount of glue used by providing a bending portion 121 between two adjacent plate bodies 11, thereby avoiding the problem of unreliable bonding caused by too little glue. At the same time, it can also block the excess glue generated by excessive glue between the plate body 11 and the battery cell assembly 2 to be bonded, thereby avoiding this part of the glue overflowing to between another adjacent plate body 11 and the welding area of ​​the plate body 11 and affecting the welding quality, thereby improving the product quality of the battery module.

[0035] Therefore, when the battery module protection plate 1 of the present disclosure is applied to a battery module, it can not only ensure the safety of the battery module, but also ensure the product quality of the battery module.

[0036] In the exemplary embodiments provided in the present disclosure, reference is made to Figure 5As shown in the figure, the multiple plates 11 include two first plates 111 arranged opposite to each other and two second plates 112 arranged opposite to each other. The two first plates 111 and the two second plates 112 are connected to form an enclosed space. The bending portion 121 is arranged on one of the first plate 111 and the second plate 112 and is adjacent to the other. The bending portion 121 extends to the enclosed space. Through such an arrangement, when the battery module guard plate 1 is applied to the battery module, the bending portion 121 can be used to block the overflowing glue between the plate 11 and the battery cell assembly 2 to prevent the glue from overflowing to the welding area between another adjacent plate 11 and the plate 11, thereby ensuring the welding quality of the battery module.

[0037] It should be noted that the battery module disclosed in the present invention may include two end plates 15 arranged opposite to each other and two side plates 14 arranged opposite to each other, the two end plates 15 and the two side plates 14 form an enclosing space, and the battery cell assembly 2 is arranged in the enclosing space, wherein the side plates 14 and the end plates 15 may be metal plates and the two are welded together, and in order to ensure the safety protection of the battery module, a first insulating layer 12 may be affixed to one of the side plates 14 and the end plates 15, and an insulating end cover 16 may be provided between the other and the battery cell assembly 2, and the end cover 16 may be made of plastic or other insulating materials, so that during assembly, the side plates 14 and the end plates 15 are glued and fixed to the battery cell assembly 2 through the first insulating layer 12 or the insulating end cover 16, wherein the setting of the bending portion 121 on the first insulating layer 12 is to be able to block the glue used in the above-mentioned gluing process to prevent this part of the glue from overflowing and affecting the welding between the side plates 14 and the end plates 15.

[0038] In the above embodiments, the first plate body 111 and the second plate body 112 can be any suitable plate body structure in the battery module, and the bending portion 121 can be flexibly arranged on these plate body structures according to actual conditions, and the present disclosure does not limit this. Optionally, the battery module guard plate 1 in the present disclosure may also include a side plate 14, an end plate 15 and an insulating end cover 16, the first plate body 111 or the second plate body 112 can be any one of the side plate 14 and the end plate 15, and the bending portion 121 can be arranged on these side plates 14 or end plates 15 according to actual conditions. Exemplarily, when the side plate 14 is used as the first plate body 111 and the end plate 15 is used as the second plate body 112, the arrangement of the bending portion 121 and the end cover 16 on the battery module guard plate 1 may have the following possible implementation methods:

[0039] In a first possible implementation, the bending portion 121 may be disposed on the side plate 14 , and the end cover 16 may be disposed on one side of the end plate 15 and close to the enclosed space.

[0040] In a second possible implementation, the bending portion 121 may be disposed on the end plate 15 , and the end cover 16 may be disposed on one side of the side plate 14 and close to the enclosed space.

[0041] In a third possible implementation, a portion of the bent portion 121 can be arranged on some side panels 14, another portion of the bent portion 121 can be arranged on some end panels 15, a portion of the end cover 16 can be arranged on one side of other side panels 14 and close to the surrounding space, and another portion of the end cover 16 can be arranged on one side of other end panels 15 and close to the surrounding space.

[0042] In the above three possible implementation methods, in order to achieve safety protection of the battery module, the first insulating layer 12 can be directly attached to the side plate 14 or the end plate 15, or an insulating end cover 16 can be arranged between the side plate 14 or the end plate 15 and the battery cell assembly 2. When the side plate 14 or the end plate 15 achieves safety protection by attaching the first insulating layer 12, the edge of the first insulating layer 12 that is away from the side plate 14 or the end plate 15 is bent to form a bending portion 121. The bending portion 121 can block the overflow glue generated by the bonding of the battery module, thereby preventing this part of the glue from overflowing to the welding area of ​​the side plate 14 and the end plate 15 and affecting the welding of the side plate 14 and the end plate 15.

[0043] In order to clearly explain the glue blocking function of the bending portion 121 in the present disclosure, an exemplary description will be given below in combination with the bending portion 121 in the first possible implementation manner described above:

[0044] For example, reference Figure 5 and Figure 6 As shown in the figure, the first plate body 111 can be the side plate 14 in the battery module, the second plate body 112 can be the end plate 15 in the battery module, and the bending portion 121 can include two, and the two bending portions 121 can be simultaneously arranged on the same side of the two ends of the side plate 14, so that when the battery module guard plate 1 is applied to the battery module, the battery cell assembly 2 is accommodated in the enclosed space formed by connecting the two side plates 14 and the two end plates 15, and the end cover 16 is arranged between the end plate 15 and the battery cell assembly 2, wherein the side plate 14 and the end plate 15 can be made of metal, and the end plate 15 and the side plate 14 can be made of metal. The plate 14 is welded and connected, and the end cover 16 is made of insulating material, for example, it can be made of plastic material. The battery cell assembly 2 is respectively bonded to the side plate 14 and the end cover 16 by structural adhesive, wherein the two bent portions 121 of the side plate 14 can be selectively inserted between the end cover 16 and the battery cell assembly 2 or between the end cover 16 and the end plate 15 according to actual conditions. In this way, the glue between the side plate 14 and the battery cell assembly 2 is blocked by the existence of the bent portion 121 and will not overflow to the welding area between the side plate 14 and the end plate 15, thereby ensuring the welding quality of the battery module.

[0045] In the exemplary embodiment provided by the present disclosure, the bending portion 121 can be set to one or two according to actual needs. When the bending portion 121 is set to two, refer to Figure 1 and Figure 2 As shown in the figure, the two bending portions 121 are symmetrically arranged on both sides of the first insulating layer 12. In this way, when the plate 11 provided with the two bending portions 121 is applied to the battery module, due to the existence of the bending portions 121, the glue used for bonding between the plate 11 and the battery cell assembly 2 can be blocked and will not overflow to the welding area between the plate 11 and another adjacent plate 11. Therefore, this method can ensure the welding quality between adjacent plates 11 in the battery module.

[0046] In the exemplary embodiment provided by the present disclosure, the bending portion 121 can be arranged on the plate body 11 at any suitable angle, which can be flexibly set according to the actual situation of the plate body 11 on which the bending portion 121 is arranged, and the present disclosure does not limit this. Figures 1 to 3 as well as Figure 5 and Figure 6 As shown in FIG. 1 , in order to adapt to the cubic battery module structure, the bending portion 121 may be arranged perpendicular to the plate body 11 .

[0047] In the exemplary embodiments provided in the present disclosure, reference is made to Figure 1 , Figure 4 as well as Figure 5 and Figure 6 As shown in the figure, the plate body 11 includes a plate body 11c and an edge connection portion 11d arranged at the edge of the plate body 11c, and the first insulating layer 12 is attached to the plate body 11c and covers a portion of the surface of the plate body 11c. In this way, when the plate body 11 is applied to a battery module, the plate body 11c covered with the first insulating layer 12 is used for bonding and connecting with the battery cell assembly 2, and the edge connection portion 11d arranged at the edge of the plate body 11c is used for welding and connecting with another adjacent plate body 11.

[0048] In the exemplary embodiments provided in the present disclosure, the plate body 11 can be configured as any suitable guard plate structure in the battery module according to actual use requirements. For example, the plate body 11 can be configured as a side plate 14 or an end plate 15 in the battery module guard plate. When the plate body 11 is configured as a side plate 14, refer to Figure 1 , Figure 4 , Figure 5 as well as Figure 6As shown in the figure, considering that the height dimension of the battery cell assembly 2 in the first direction is greater than the height dimension of the end plate 15 in the first direction, and according to the aforementioned content, the plate body 11c is used for bonding and connecting with the battery cell assembly 2, and the edge connection portion 11d is used for welding with another adjacent plate body 11, that is, the edge connection portion 11d is used for welding with the end plate 15. Therefore, in order to make the height dimensions of the plate body 11c and the edge connection portion 11d in the first direction respectively correspond to the height dimensions of the battery cell assembly 2 and the end plate 15 in the first direction, the height dimension of the edge connection portion 11d in the first direction can be set to be smaller than the height dimension of the plate body 11c in the first direction.

[0049] In the above process, the difference between the height dimension of the edge connection portion 11d in the first direction and the height dimension of the plate body 11c in the first direction can be flexibly selected according to actual conditions, and the present disclosure does not limit this. Exemplarily, the difference between the height dimension of the edge connection portion 11d in the first direction and the height dimension of the plate body 11c in the first direction can be 10mm-20mm. Exemplarily, the difference can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm or 20mm, or any difference between the above values, which can be flexibly selected according to actual conditions, and the present disclosure does not limit this.

[0050] In the exemplary embodiments provided in the present disclosure, reference is made to Figures 1 to 4 As shown in , the board body 11 has a first surface 11a and a second surface 11b that are arranged opposite to each other, and the first insulating layer 12 is attached to the first surface 11a and folded to the second surface 11b. In this way, the first insulating layer 12 can be reliably and firmly attached to the board body 11, so as to ensure the insulation performance of the board body 11 during use. Here, the attachment range of the first insulating layer 12 on the second surface 11b can be flexibly selected according to actual conditions, and the present disclosure does not limit this. Exemplarily, the attachment range of the first insulating layer 12 on the second surface 11b can be a partial attachment covering as shown in the figure, or it can be a full attachment covering, which can be flexibly selected according to actual conditions. Among them, compared with the method of full attachment covering, the use of partial attachment covering can save more manufacturing costs of the board body 11.

[0051] In the exemplary embodiments provided in the present disclosure, reference is made to Figure 3 As shown in the figure, the battery module guard plate 1 may also include a second insulating layer 13, and the second insulating layer 13 is attached to the bending portion 121. Through such a setting, not only the structural rigidity of the bending portion 121 can be improved, but also an obvious bending boundary can be formed at the junction of the plate body 11 and the second insulating layer 13 before the bending portion 121 is formed, so as to facilitate the subsequent bending operation of the bending portion 121.

[0052] The first insulating layer 12 and the second insulating layer 13 can be constructed as insulating layers of any suitable structure, which can be flexibly selected according to actual conditions, and the present disclosure does not limit this. For example, in the embodiments provided by the present disclosure, the first insulating layer 12 and the second insulating layer 13 can have at least the following three possible implementation methods:

[0053] In a first possible implementation manner, the first insulating layer 12 is configured as a PET insulating layer.

[0054] In a second possible implementation manner, the second insulating layer 13 is configured as a PET insulating layer.

[0055] In a third possible implementation manner, the first insulating layer 12 is configured as a PET insulating layer, and the second insulating layer 13 is configured as a PET insulating layer.

[0056] In the above three implementation methods, the PET insulating layer refers to an insulating layer structure made of polyethylene terephthalate (PET) as the main component, wherein polyethylene terephthalate (PET) is a material with excellent electrical insulation properties. Therefore, applying it to the production of the first insulating layer 12 and the second insulating layer 13 on the plate body 11 in the battery module can ensure the safety performance of the battery module during use.

[0057] On the basis of the above technical solution, the present disclosure further provides a battery module, the battery module comprising a battery cell assembly 2 and the above battery module guard plate 1, the battery cell assembly 2 being accommodated in the enclosed space formed by the battery module guard plate 1. Here, since the above process has described in detail the relationship between the battery cell assembly 2 and the battery module guard plate 1 in the battery module, the present disclosure will not repeat it here to avoid repetition.

[0058] On the basis of the above technical solution, the present disclosure further provides an electric device, which includes the above battery module. The electric device here can be any suitable electric device such as a mobile terminal, a portable device, and a vehicle (such as an electric vehicle or a hybrid vehicle, etc.), which can be flexibly selected according to actual conditions, and the present disclosure does not limit this.

[0059] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0060] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0061] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery module guard plate, characterized in that: include: A plurality of plates are interconnected to form an enclosed space; and A first insulating layer is attached to at least a portion of the plate and covers a portion of the surface of at least a portion of the plate. An edge of the first insulating layer is bent away from the plate to form a bent portion. The bent portion is arranged on at least one of the plates and is adjacent to an adjacent plate. The bent portion extends to the enclosed space.

2. The battery module guard plate according to claim 1, characterized in that: The multiple plates include two first plates arranged opposite to each other and two second plates arranged opposite to each other. The two first plates and the two second plates are connected to form the enclosed space. The bending portion is arranged on one of the first plate and the second plate and is adjacent to the other. The bending portion extends to the enclosed space.

3. The battery module guard plate according to claim 2, characterized in that: The battery module guard plate further includes a side plate and an end plate, wherein the side plate is used as the first plate body and the end plate is used as the second plate body. The bending portion is arranged on the side plate, and / or, The bending portion is arranged on the end plate.

4. The battery module guard plate according to claim 1, characterized in that: The bending portions include two, and the two bending portions are symmetrically arranged on two sides of the first insulating layer.

5. The battery module guard plate according to claim 1, characterized in that: The bent portion is perpendicular to the plate body.

6. The battery module guard plate according to claim 1, characterized in that: The plate body includes a plate body and an edge connecting portion arranged at the edge of the plate body, and the first insulating layer is attached to the plate body and covers a part of the surface of the plate body.

7. The battery module guard plate according to claim 6, characterized in that: A height dimension of the edge connection portion in the first direction is smaller than a height dimension of the plate body in the first direction.

8. The battery module guard plate according to claim 1, characterized in that: The plate body has a first surface and a second surface that are oppositely disposed. The first insulating layer is attached to the first surface and folded to the second surface.

9. The battery module guard plate according to claim 1, characterized in that: The battery module guard plate also includes a second insulating layer, and the second insulating layer is attached to the bending portion.

10. The battery module guard plate according to claim 9, characterized in that: The first insulating layer is configured as a PET insulating layer, and / or the second insulating layer is configured as a PET insulating layer.

11. A battery module, characterized in that: The battery module comprises a battery cell assembly and a battery module guard plate according to any one of claims 1 to 10, wherein the battery cell assembly is accommodated in an enclosed space formed by the battery module guard plate.

12. An electrical equipment, characterized in that: The electrical equipment comprises the battery module according to claim 11.

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