Side plate assembly of battery module, battery module and vehicle

Abstract

The utility model provides a side plate assembly of a battery module, the battery module and a vehicle, and relates to the technical field of batteries. The side plate assembly of the battery module comprises two side plates which are oppositely arranged, each side plate comprises a main plate body and a bent part arranged on the edge of the main plate body, each bent part comprises a convex plate part, and the convex plate parts protrude in the direction away from the main plate body in the thickness direction of the main plate body; the bending portion is located between the two main plate bodies, the protruding plate portion of one side plate abuts against the protruding plate portion of the other side plate in the first direction, and the first direction is parallel to the main plate bodies and the bending portion. The side plate assembly of the battery module provided by the utility model is used for accommodating and protecting the battery monomers, so that the reliability of the battery module can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a side plate assembly of a battery module, a battery module and a vehicle. BACKGROUND

[0002] The side plate assembly of the battery module cooperates with the end plate assembly to accommodate and protect the battery monomer. In the related art, the side plate assembly of the battery module is prone to deviating relative to the battery monomer, which leads to poor protection of the battery monomer by the side plate assembly of the battery module, and further leads to poor reliability of the battery module. SUMMARY

[0003] The present application provides a side plate assembly of a battery module, a battery module and a vehicle, which can improve the reliability of the battery module.

[0004] In a first aspect, the present application provides a side plate assembly of a battery module, the side plate assembly of the battery module comprising two side plates arranged oppositely, each side plate comprising a main plate body and a bent portion arranged at an edge of the main plate body, the bent portion comprising a protruding plate portion, the protruding plate portion protruding away from the main plate body along a thickness direction of the main plate body; the bent portion is located between the two main plate bodies, and the protruding plate portion of one side plate abuts against the protruding plate portion of the other side plate along a first direction, the first direction being parallel to the main plate body and the bent portion.

[0005] The side plate assembly of the battery module provided by the present application is characterized in that the protruding plate portion of one side plate abuts against the protruding plate portion of the other side plate along the first direction, so that the two side plates can limit each other in the first direction. In the case that one side plate has a tendency to deviate relative to the battery monomer in the first direction due to external factors, the other side plate can hinder this tendency, i.e., the side plate is not prone to deviating relative to the battery monomer in the first direction, so that the protection of the battery monomer by the side plate assembly of the battery module is improved, and further the reliability of the battery module is improved.

[0006] In combination with the first aspect, in some possible implementation manners, each side plate comprises at least two protruding plate portions, and the protruding plate portions of the two side plates are staggered along the first direction.

[0007] By staggering the protruding plate portions of the two side plates along the first direction, each part of the side plate along the first direction can be limited by the other side plate, so that the side plate is not prone to deviating relative to the battery monomer, which is conducive to improving the reliability of the battery module.

[0008] In combination with the first aspect and the above implementation manner, in some possible implementation manners, along the first direction, the protruding plate portion comprises a guide portion, the guide portion extending to an end face of an end of the protruding plate portion away from the corresponding main plate body, and the guide portion has an included angle with the thickness direction of the main plate body.

[0009] By making the guide portion have an included angle with the thickness direction of the main plate body, the guide portion can guide the corresponding two convex plate portions to move relative to each other in the first direction during the process of moving towards each other along the thickness direction of the main plate body. In this way, even if the two side plates have a slight misalignment in the first direction, the guide portion can guide the two side plates to move to the aligned position in the first direction, which facilitates the convenience of installing the two side plates.

[0010] In some possible implementation manners combined with the first aspect and the foregoing implementation manners, the convex plate portion is formed with a convex rib structure relative to at least one of the side surfaces on both sides along the thickness direction of the convex plate portion.

[0011] In this way, the strength and rigidity of the convex plate portion are improved, thereby facilitating the limiting effect of the two side plates in the first direction, so that the two side plates are less likely to deviate, and the reliability of the battery module is improved.

[0012] In some possible implementation manners combined with the first aspect and the foregoing implementation manners, the bent portion further includes a main plate portion, one end of the main plate portion close to the main plate body is connected to the main plate body, and the convex plate portion is arranged at the other end of the main plate portion away from the main plate body.

[0013] By making the bent portion include the main plate portion and the convex plate portion, the length of the convex plate portion in the thickness direction of the main plate body is reduced, the convex plate portion has a cantilever beam structure, the smaller the length, the greater the bending rigidity and strength, and the length of the convex plate portion in the thickness direction of the main plate body is reduced, thereby improving the reliability of the convex plate portion, the limiting effect of the two side plates in the first direction is stronger, and the reliability of the battery module is stronger.

[0014] In some possible implementation manners combined with the first aspect and the foregoing implementation manners, a mounting groove is formed on the surface of the main plate body away from the other main plate body, the mounting groove extends along the first direction, and the mounting groove is used to embed the binding belt.

[0015] By embedding the binding belt in the mounting groove of the main plate body, the installation reliability of the binding belt on the main plate body is improved, the binding belt is less likely to deviate relative to the main plate body, the binding effect of the binding belt on the side plate is improved, thereby improving the pre-tightening force between the side plate and the battery monomer, and the protection effect of the side plate on the battery monomer is improved.

[0016] In some possible implementation manners combined with the first aspect and the foregoing implementation manners, the mounting groove extends from one end of the main plate body to the other end along the first direction.

[0017] By making the mounting groove extend from one end of the main plate body to the other end, the cooperation distance between the binding belt and the mounting groove is longer, the installation reliability of the binding belt on the main plate body is improved, and the protection effect of the side plate on the battery monomer is improved.

[0018] With the first aspect and the above implementation manners, in some possible implementation manners, the main plate body is provided with at least two first reinforcing ribs, the first reinforcing ribs extend along the first direction; the at least two first reinforcing ribs are arranged along a second direction, the second direction is parallel to the main plate body and perpendicular to the first direction; and the part of the main plate body between the two adjacent first reinforcing ribs cooperates with the two adjacent first reinforcing ribs to form the mounting groove.

[0019] By making the part of the main plate body between the two adjacent first reinforcing ribs cooperates with the two adjacent first reinforcing ribs to form the mounting groove, the convenience of manufacturing the mounting groove is improved, and the reliability of the main plate body is also improved.

[0020] With the first aspect and the above implementation manners, in some possible implementation manners, the surface of the main plate body on the side facing the other main plate body is provided with a guide rib, the guide rib extends to one end of the main plate body along the first direction; and the guide rib is used for slidingly cooperating with the end plate cover of the battery module.

[0021] By making the main plate body is provided with the guide rib, and the guide rib is used for slidingly cooperating with the end plate cover of the battery module, the convenience and reliability of installing the end plate cover of the battery module are improved, and the reliability of the main plate body is also improved.

[0022] The second aspect provides a battery module, which comprises the side plate assembly of the battery module provided in the first aspect and the above implementation manners.

[0023] The battery module provided in the present application comprises the side plate provided in the first aspect, and the same technical effects can be achieved, that is, the reliability of the battery module can be improved.

[0024] The third aspect provides a vehicle, which comprises the battery module provided in the second aspect.

[0025] The vehicle provided in the present application comprises the battery module provided in the second aspect, and the same effects can be achieved, that is, the reliability of the battery module can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is a structural schematic view of a battery module provided in an embodiment of the present application;

[0028] Figure 2 is an exploded view of a battery module provided by an embodiment of the present application;

[0029] Figure 3 is a structural schematic view of a side plate assembly provided by an embodiment of the present application;

[0030] Figure 4 is a structural schematic view of a side plate assembly provided by an embodiment of the present application;

[0031] Figure 5 is an exploded view of a side plate assembly provided by an embodiment of the present application;

[0032] Figure 6 is a partial enlarged view of A in FIG. 7; Figure 4

[0033] Figure 7 is a structural schematic view of a side plate and an end plate cover provided by an embodiment of the present application.

[0034] Legend of reference signs:

[0035] 1, side plate; 11, main plate; 111, mounting groove; 112, first reinforcing rib; 113, second reinforcing rib; 114, guide rib; 12, bending portion; 121, main plate portion; 1211, reinforcing strip; 122, protruding plate portion; 1221, guide portion; 1222, abutting portion; 1223, annular protruding rib; 1224, strip-shaped protruding rib; 2, battery monomer; 3, binding belt; 4, end plate cover; 41, connecting groove; 411, mounting opening; 5, end cover. DETAILED DESCRIPTION

[0036] The technical solutions in the present application will be described in detail below with reference to the drawings.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0038] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be combined with any of the other embodiments.

[0039] ​In the description of the embodiments of the present application, unless otherwise specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the present application can be understood according to the specific circumstances.

[0040] In the description of the embodiments of the present application, unless otherwise specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] In the description of the embodiments of the present application, unless otherwise specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] In the description of the embodiments of the present application, unless otherwise specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] The embodiments of the present application provide a vehicle, and the vehicle includes a battery module. The vehicle provided by the present application can be various, for example, a truck, a bus, a car, an off-road vehicle or a sport utility vehicle (SUV) and the like.

[0044] Please refer to Figure 1 and Figure 2 The number of battery modules is not limited in the embodiments of the present application, which can be one or at least two. The at least two battery modules can be connected in series, parallel or mixed connection.

[0045] Please refer to Figure 3 , Figure 4 and Figure 5The battery module provided in the application comprises a side plate assembly of the battery module, and the side plate assembly of the battery module comprises two side plates 1 arranged oppositely, wherein the side plate 1 comprises a main plate body 11 and a bending part 12 arranged at the edge of the main plate body 11, the bending part 12 comprises a convex plate part 122, the convex plate part 122 protrudes away from the main plate body 11 along the thickness direction of the main plate body 11, and the thickness direction of the main plate body 11 refers to the third direction in the figure; the bending part 12 is located between the two main plate bodies 11, and the convex plate part 122 of one side plate 1 abuts against the convex plate part 122 of the other side plate 1 along the first direction, and the first direction is parallel to the main plate body 11 and the bending part 12.

[0046] The side plate assembly of the battery module provided in the application is characterized in that the convex plate part 122 of one side plate 1 abuts against the convex plate part 122 of the other side plate 1 along the first direction, so that the two side plates 1 can be limited in the first direction, and in the case that one side plate 1 has a tendency to deviate from the battery monomer 2 in the first direction under the influence of external factors, the other side plate 1 can hinder this tendency, that is, the side plate 1 is not easy to deviate from the battery monomer 2 in the first direction, so that the protection of the side plate assembly of the battery module on the battery monomer 2 is improved, and the reliability of the battery module is improved.

[0047] Please refer to Figure 3 , Figure 4 and Figure 5 It can be understood that in the embodiments of the application, the two main plate bodies 11 belong to the two side plates 1 respectively, and the two bending parts 12 belong to the two side plates 1 respectively.

[0048] Please refer to Figure 2 , Figure 4 and Figure 5It should be explained that, in the embodiment of the present application, the side plate assembly is used to surround the battery monomer 2, and the two side plates 1 and the two bending parts 12 jointly enclose a containing space for containing the battery monomer 2. In order to facilitate understanding, the two main plate bodies 11 are respectively referred to as a first main plate body and a second main plate body below, the bending part 12 arranged on the first main plate body is referred to as a first bending part, the bending part 12 arranged on the second main plate body is referred to as a second bending part, along the second direction, the edge of one end of the first main plate body is provided with the first bending part, the second direction is parallel to the main plate body 11 and perpendicular to the first direction, along the second direction, the edge of one end of the second main plate body close to the first bending part is provided with the second bending part, the convex plate part 122 of the first bending part and the convex plate part 122 of the second bending part abut, so that the first bending part and the second bending part are jointly arranged between the two main plate bodies 11, so that the first bending part, the second bending part, the first main plate body and the second main plate body jointly enclose a space for containing the battery monomer 2, and the battery monomer 2 is located between the first main plate body and the second main plate body, along the second direction, the first bending part and the second bending part are located on the same side of the battery monomer 2.

[0049] Please refer to Figure 2 , Figure 4 and Figure 5 It should be understood that, in the embodiment of the present application, the first direction is the extension direction of the edge of the main plate body 11 provided with the bending part 12.

[0050] Please refer to Figure 2 , Figure 4 and Figure 5 It should be understood that, in the embodiment of the present application, the thickness direction of the convex plate part 122 is the second direction, the convex plate part 122 extends along the first direction and the thickness direction of the main plate part 121.

[0051] Please refer to Figure 2 , Figure 4 and Figure 5 It should be explained that, in the embodiment of the present application, the convex plate part 122 protrudes in the direction away from the main plate body 11, that is, the convex plate part 122 of the first bending part protrudes in the direction away from the first main plate body, and the convex plate part 122 of the second bending part protrudes in the direction away from the second main plate body, that is, the convex plate part 122 of the first bending part protrudes in the direction towards the second main plate body, and the convex plate part 122 of the second bending part protrudes in the direction towards the first main plate body.

[0052] Please refer to Figure 2 , Figure 4 and Figure 5 Generally, in some embodiments of the present application, the two main plate bodies 11 are arranged opposite to each other along the horizontal direction, the battery monomer 2 is located between the two main plate bodies 11 along the horizontal direction, and the bending part 12 is located at the upper end or the lower end of the main plate body 11, that is, the second direction is a vertical direction.

[0053] Please refer to Figure 2 , Figure 4 and Figure 5 Generally, in some embodiments of the present application, the first direction is the length direction of the battery monomer 2. In some embodiments of the present application, the at least two battery monomers 2 are arranged in a stack along the first direction.

[0054] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, each side plate 1 includes at least two protruding plate portions 122, and the protruding plate portions 122 of the two side plates 1 are staggered arranged along the first direction.

[0055] By staggering the protruding plate portions 122 of the two side plates 1 along the first direction, each part of the side plate 1 along the first direction can be limited by the other side plate 1, so that the side plate 1 is not easy to deviate relative to the battery monomer 2, which is conducive to improving the reliability of the battery module.

[0056] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, along the first direction, the side surfaces of the adjacent two protruding plate portions 122 belonging to the same side plate 1 that are close to each other are in abutment with one protruding plate portion 122. In this way, in two opposite directions parallel to the first direction, the side plate 1 is limited by the other side plate 1, and the side plate 1 is not easy to deviate relative to the battery monomer 2 in the two opposite directions parallel to the first direction, which is conducive to improving the reliability of the battery module.

[0057] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, along the first direction, the at least two protruding plate portions 122 are arranged from one end of the main plate body 11 to the other end. In this way, in the first direction, each part of the side plate 1 along the first direction can be limited by the other side plate 1, so that the side plate 1 is not easy to deviate relative to the battery monomer 2, which is conducive to improving the reliability of the battery module.

[0058] Please refer to Figure 2 , Figure 4 and Figure 5 Of course, in some embodiments of the present application, each side plate 1 can also include one protruding plate portion 122. In this way, the side plate 1 is relatively convenient to manufacture.

[0059] Please refer to Figure 2 , Figure 4 and Figure 5In some embodiments of the present application, the protruding plate portion 122 comprises a guide portion 1221 extending to the end surface of the protruding plate portion 122 away from the corresponding main plate body 11 in the first direction, and the guide portion 1221 forms an angle with the third direction.

[0060] By making the guide portion 1221 form an angle with the third direction, the guide portion 1221 can guide the corresponding two protruding plate portions 122 to move relative to each other in the first direction during the process of moving the corresponding two protruding plate portions 122 towards each other in the third direction. Thus, even if the two side plates 1 are slightly misaligned in the first direction, the guide portion 1221 can guide the two side plates 1 to move to the aligned position in the first direction, which is beneficial to improve the convenience of installation of the two side plates 1.

[0061] Please refer to Figure 2 , Figure 4 and Figure 5 , it should be explained that the corresponding two protruding plate portions 122 belong to the two side plates 1 respectively, and abut in the first direction.

[0062] Please refer to Figure 2 , Figure 4 and Figure 5 , it should be understood that in the embodiments of the present application, the guide portion 1221 of one side plate 1 faces the main plate body 11 of the other side plate 1.

[0063] Please refer to Figure 2 , Figure 4 and Figure 5 , in some embodiments of the present application, the side surface of the protruding plate portion 122 close to the adjacent protruding plate portion 122 further comprises an abutting portion 1222, which is located on the side of the guide portion 1221 close to the corresponding main plate body 11, and the abutting portion 1222 is parallel to the third direction. In this way, by providing the abutting portion 1222 parallel to the third direction, the corresponding two protruding plate portions 122 can stably abut in the first direction and are not easy to move relative to each other, so that the side plates 1 are not easy to deviate.

[0064] Please refer to Figure 2 , Figure 4 and Figure 5 , it should be explained that in the embodiments of the present application, the corresponding main plate body 11 of the guide portion 1221 refers to the guide portion 1221 and the main plate body 11 belonging to the same side plate 1.

[0065] Please refer to Figure 2 , Figure 4 and Figure 5In some embodiments of the present application, the distance between the two main plates 11 of the convex plate part 122 is equal in the third direction. In this way, it can be understood that the distance between the corresponding two convex plate parts 122 is the same, so that the stress conditions of the corresponding two convex plate parts 122 are consistent, which is beneficial to improve the reliability of the side plate assembly.

[0066] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, at least one of the side surfaces on both sides of the convex plate part 122 is formed with a convex rib structure in the thickness direction of the convex plate part 122.

[0067] Please refer to Figure 2 , Figure 4 and Figure 5 In this way, it is beneficial to improve the strength and rigidity of the convex plate part 122, thereby facilitating the limiting effect of the two side plates 1 in the first direction, so that the two side plates 1 are not easy to deviate, which is beneficial to improve the reliability of the battery module.

[0068] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the convex rib structure includes a ring-shaped convex rib 1223, and the axial direction of the ring-shaped convex rib 1223 is the thickness direction of the convex plate part 122. In this way, it is beneficial to improve the strength and rigidity of the convex plate part 122, thereby facilitating the limiting effect of the two side plates 1 in the first direction, so that the two side plates 1 are not easy to deviate, which is beneficial to improve the reliability of the battery module. In some embodiments of the present application, the extension shape of the ring-shaped convex rib 1223 can be various, for example, it can be circular extension or rectangular extension, etc.

[0069] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the convex rib structure includes a strip-shaped convex rib 1224, and the strip-shaped convex rib 1224 passes through the ring-shaped convex rib 1223. In this way, it is beneficial to improve the strength and rigidity of the convex plate part 122, thereby facilitating the limiting effect of the two side plates 1 in the first direction, so that the two side plates 1 are not easy to deviate, which is beneficial to improve the reliability of the battery module.

[0070] Please refer to Figure 2 , Figure 4 and Figure 5In some embodiments of the present application, at least two strip-shaped protrusions 1224 are arranged on each protruding plate portion 122, and the at least two strip-shaped protrusions 1224 intersect. In this way, the strength and rigidity of the protruding plate portion 122 can be improved. In some embodiments of the present application, the intersection of the at least two strip-shaped protrusions 1224 is located within the area surrounded by the annular protrusion 1223. In this way, the strength and rigidity of the protruding plate portion 122 can be improved. In some embodiments of the present application, two strip-shaped protrusions 1224 are arranged on each protruding plate portion 122, and the included angle between the two strip-shaped protrusions 1224 is 90 degrees. In this way, the strength and rigidity of the protruding plate portion 122 can be improved, and the number of strip-shaped protrusions 1224 is small, which is convenient for processing and manufacturing.

[0071] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the annular protrusion 1223 extends along a circle, and the intersection of the at least two strip-shaped protrusions 1224 is located at the center of the circle. In this way, the strength and rigidity of the protruding plate portion 122 can be improved.

[0072] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, in the second direction, the surface of the bending portion 12 facing the surface between the two body plates is a plane. In this way, the bending portion 12 can be closely attached to the battery monomer 2 and the like, and the protection effect of the side plate assembly can be improved.

[0073] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, in the second direction, one of the opposite sides of the flexible circuit board of the battery module is bonded to the battery module, and the other side is in abutment with the bending portion 12 through a buffer such as foam, sponge, foamed plastic and the like. In this way, the installation of the flexible circuit board is stable and not easily damaged. In the second direction, the surface of the bending portion 12 facing the surface between the two body plates is a plane, so that the bending portion 12 is closely attached to the buffer, and the stability of the installation of the flexible circuit board can be improved.

[0074] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, in the third direction, the distance between the flexible circuit board and the two main plate bodies 11 is the same, which is convenient for the arrangement of the flexible circuit board. It can be understood that in some embodiments of the present application, in the third direction, the distance between the two main plate bodies 11 of the protruding plate portion 122 is equal, and the flexible circuit board is in abutment with the protruding plate portion 122 through a buffer.

[0075] Please refer to Figure 2、 Figure 4 and Figure 5 In some embodiments of the present application, the bending part 12 further comprises a main plate part 121, the main plate part 121 is connected to the main plate body 11 at one end close to the main plate body 11, and the convex plate part 122 is arranged at one end of the main plate part 121 away from the main plate body 11.

[0076] By making the bending part 12 include the main plate part 121 and the convex plate part 122, it is beneficial to reduce the length of the convex plate part 122 in the thickness direction of the main plate body 11, the convex plate part 122 is in a cantilever beam structure, the smaller the length, the greater the bending stiffness and strength, reducing the length of the convex plate part 122 in the thickness direction of the main plate body 11, thereby facilitating to improve the reliability of the convex plate part 122, making the limiting effect of the two side plates 1 in the first direction stronger, and the reliability of the battery module stronger.

[0077] Please refer to Figure 2 、 Figure 4 and Figure 5 In some embodiments of the present application, at least one of the opposite sides of the main plate part 121 forms a reinforcing strip 1211 in the thickness direction of the main plate part 121. In this way, it is beneficial to improve the strength and stiffness of the main plate part 121, thereby facilitating to improve the limiting effect of the two side plates 1 in the first direction, making the two side plates 1 not easy to deviate, and facilitating to improve the reliability of the battery module.

[0078] Please refer to Figure 2 、 Figure 4 and Figure 5 In some embodiments of the present application, the number of reinforcing strips 1211 is at least two, and the at least two reinforcing strips 1211 intersect. In this way, it is beneficial to improve the strength and stiffness of the main plate part 121. In some embodiments of the present application, the at least two reinforcing strips 1211 include a first reinforcing strip 1211 and a second reinforcing strip 1211 intersecting, the first reinforcing strip 1211 extends in the first direction, and the second reinforcing strip 1211 extends in the third direction. In this way, it is beneficial to improve the strength and stiffness of the main plate part 121.

[0079] Please refer to Figure 2 、 Figure 4 and Figure 5 Of course, in some embodiments of the present application, the bending part 12 can only include the convex plate part 122 and not include the main plate part 121.

[0080] Please refer to Figure 2 、 Figure 4 and Figure 5 In some embodiments of the present application, the surface of the main plate body 11 away from the other main plate body 11 forms a mounting groove 111, the mounting groove 111 extends in the first direction, and the mounting groove 111 is used for embedding the binding belt 3.

[0081] By embedding the binding belt 3 in the mounting groove 111 of the main plate body 11, the installation reliability of the binding belt 3 on the main plate body 11 is improved, the binding belt 3 is not easy to deviate relative to the main plate body 11, which is conducive to improving the binding effect of the binding belt 3 on the side plate 1, thereby improving the pre-tightening force between the side plate 1 and the battery monomer 2, and improving the protection effect of the side plate 1 on the battery monomer 2.

[0082] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the surfaces of the opposite sides of the binding belt 3 are in abutment with the inner walls of the mounting groove 111 in the second direction. In this way, the stability of the installation of the binding belt 3 on the main plate body 11 is improved.

[0083] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the number of mounting grooves 111 is at least two, and the at least two mounting grooves 111 are arranged along the second direction, which is parallel to the extension direction of the body plate and perpendicular to the first direction. In this way, the at least two mounting grooves 111 can respectively embed the at least two binding belts 3, and the mounting groove 111 and the binding belt 3 are arranged one by one, so that the main plate body 11 can stably install multiple binding belts 3, which is conducive to improving the protection effect of the side plate 1 on the battery monomer 2.

[0084] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the mounting groove 111 extends from one end of the main plate body 11 to the other end along the first direction.

[0085] Please refer to Figure 2 , Figure 4 and Figure 5 By making the mounting groove 111 extend from one end of the main plate body 11 to the other end, the cooperation distance between the binding belt 3 and the mounting groove 111 is longer, which is conducive to improving the installation reliability of the binding belt 3 on the main plate body 11, thereby improving the protection effect of the side plate 1 on the battery monomer 2.

[0086] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the mounting groove 111 penetrates through the opposite sides of the main plate body 11 along the first direction. In this way, the binding belt 3 can be stably embedded in the mounting groove 111, and the binding belt 3 can be closely attached to the inner wall of the mounting groove 111, and the side wall of the mounting groove 111 is not easy to interfere with the binding belt 3 in the extension path of the binding belt 3.

[0087] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the main plate body 11 is formed with at least two first reinforcing ribs 112 extending along the first direction; the at least two first reinforcing ribs 112 are arranged along the second direction which is parallel to the main plate body 11 and perpendicular to the first direction; the part of the main plate body 11 between the adjacent two first reinforcing ribs 112 together with the adjacent two first reinforcing ribs 112 encloses the mounting groove 111.

[0088] By making the part of the main plate body 11 between the adjacent two first reinforcing ribs 112 together with the adjacent two first reinforcing ribs 112 enclose the mounting groove 111, it is beneficial to improve the convenience of manufacturing the mounting groove 111, and also beneficial to improve the reliability of the main plate body 11.

[0089] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the surface of the main plate body 11 away from the other side plate 1 body is also formed with a second reinforcing rib 113 extending along the second direction. In some embodiments of the present application, the number of the second reinforcing rib 113 is at least two, and the at least two second reinforcing ribs 113 are distributed along the first direction. In this way, it is beneficial to improve the reliability of the main plate body 11.

[0090] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the surface of the main plate body 11 close to the other main plate body 11 is a plane. In this way, the surface of the main plate body 11 close to the other main plate body 11 can be closely attached to the battery monomer 2 and the current collecting component, etc., which is beneficial to improve the protection effect of the side plate assembly on the battery monomer 2 and the current collecting component, etc.

[0091] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the surface of the main plate body 11 towards the other main plate body 11 is convexly provided with a guide rib 114 extending to one end of the main plate body 11 along the first direction; the guide rib 114 is used for slidingly cooperating with the end plate cover 4 of the battery module.

[0092] By making the main plate body 11 provided with the guide rib 114 used for slidingly cooperating with the end plate cover 4 of the battery module, it is beneficial to improve the convenience and reliability of installing the end plate cover 4 of the battery module, and also beneficial to improve the reliability of the main plate body 11.

[0093] Please refer to Figure 2 , Figure 4And Figure 5 In the embodiments of the present application, the end plate cover 4 is arranged on the end plate of the battery module in the second direction. Generally, in the second direction, one side of the end plate is provided with the connecting components of the battery module, such as the output assembly and the collector of the battery module, and the end plate cover 4 is arranged on the connecting components of the battery module in the second direction to protect the connecting components.

[0094] Please refer to Figure 2 , Figure 4 and Figure 5 In some embodiments of the present application, the end plate cover 4 is formed with a connecting groove 41 extending in the first direction. In the first direction, one end of the connecting groove 41 penetrates the end plate cover 4, so that the connecting groove 41 is formed with a mounting opening 411, and the guide rib 114 extends into the connecting groove 41 through the mounting opening 411. In this way, the guide rib 114 can extend into the connecting groove 41 through the mounting opening 411, which is conducive to improving the convenience of mounting the end plate cover 4 on the side plate 1.

[0095] Please refer to Figure 2 , Figure 4 and Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure In some embodiments of the present application, the guide rib 114 is formed on the edge of one end of the main plate body 11 where the bending portion 12 is formed. In the first direction, the guide rib 114 extends from one end of the main plate body 11 to the bending portion 12, and in the third direction, the length of the guide rib 114 is less than the length of the bending portion 12. In the first direction, the bending portion 12 abuts against the end plate cover 4. In this way, the bending portion 12 is used to limit the other side plate 1 and also used to limit the end plate cover 4, and the bending portion 12 is fully utilized, which is conducive to improving the compactness of the structure.

[0096] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the foregoing embodiments of the present application have been described in detail, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way.

Claims

1. A side panel assembly of a battery module, characterized by, The side plate comprises two oppositely arranged side plates, and each side plate comprises a main plate body and a bent portion arranged at the edge of the main plate body, wherein the bent portion comprises a convex plate portion, and the convex plate portion protrudes away from the main plate body along the thickness direction of the main plate body; The bent portion is located between two main plate bodies, and the convex plate portion of one side plate abuts against the convex plate portion of another side plate along a first direction, and the first direction is parallel to the main plate body and the bent portion.

2. The side plate assembly of a battery module according to claim 1, wherein Each side plate comprises at least two convex plate portions, and the convex plate portions of the two side plates are staggered along the first direction.

3. The side plate assembly of a battery module according to claim 2, wherein The convex plate portion comprises a guide portion extending to the end face of the end of the convex plate portion away from the corresponding main plate body along the first direction, and the guide portion has an included angle with the thickness direction of the main plate body.

4. The side plate assembly of a battery module according to claim 1, wherein At least one of the side surfaces of the convex plate portion on opposite sides thereof is formed with a convex rib structure along the thickness direction of the convex plate portion.

5. The side plate assembly of a battery module according to claim 1, wherein The bent portion further comprises a main plate portion connected to the main plate body at the end of the main plate body close to the main plate body, and the convex plate portion is arranged at the end of the main plate portion away from the main plate body.

6. The side plate assembly of a battery module according to any one of claims 1 to 5, characterized by The surface of the main plate body away from the other main plate body is formed with a mounting groove extending along the first direction, and the mounting groove is used for embedding a binding belt.

7. The side plate assembly of a battery module according to claim 6, wherein The mounting groove extends from one end of the main plate body to the other end along the first direction.

8. The side plate assembly of a battery module according to claim 7, wherein The main plate body is formed with at least two first reinforcing ribs extending along the first direction; The at least two first reinforcing ribs are arranged along a second direction, and the second direction is parallel to the main plate body and perpendicular to the first direction; The portion of the main plate body between the adjacent two first reinforcing ribs together with the adjacent two first reinforcing ribs forms the mounting groove.

9. The side plate assembly of a battery module according to any one of claims 1 to 5, characterized by The surface of the main plate body facing the other main plate body is convexly provided with a guide rib extending to one end of the main plate body along the first direction; The guide rib is used for slidingly cooperating with an end plate cover of a battery module.

10. A battery module, characterized by The side plate assembly of the battery module comprises the side plate according to any one of claims 1-9.

11. A vehicle characterized by comprising: The battery module comprises the side plate assembly according to claim 10.

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