CN219350522U - Battery module - Google Patents

Abstract

The utility model relates to the technical field of batteries, and provides a battery module, which comprises: a support assembly and a single battery; the support assembly comprises a support plate, a first side plate and a second side plate which are oppositely arranged, the first side plate and the second side plate extend in a direction far away from the support plate, the first side plate and the second side plate enclose an accommodating space, and the support plate, the first side plate and the second side plate are of an integrated structure; and the single battery is positioned in the accommodating space and is contacted with the supporting plate, the first side plate and the second side plate. The supporting component is used for supporting and fixing the single battery, preventing the single battery from falling off in the using process, and can improve the structural strength of the supporting component by integrating the supporting component into an integrated structure, so that the structural strength of the whole battery module is improved, and the damage probability of the battery module in the using process is reduced.

Description

Battery module

Technical Field

The disclosure relates to the technical field of batteries, in particular to a battery module.

Background

At present, single batteries in a battery module are easy to fall off, and the battery module is easy to damage in the using process.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure is directed to overcoming the problem that the battery cells in the battery module of the related art are easy to fall off, and the battery module is easy to be damaged in the use process, and to provide a battery module in which the battery cells are not easy to fall off and are not easy to be damaged.

According to an aspect of the present disclosure, there is provided a battery module including:

the support assembly comprises a support plate, a first side plate and a second side plate which are oppositely arranged, wherein the first side plate and the second side plate extend in a direction far away from the support plate, the first side plate and the second side plate enclose an accommodating space, and the support plate, the first side plate and the second side plate are of an integrated structure;

and the single battery is positioned in the accommodating space and is in contact with the supporting plate, the first side plate and the second side plate.

The battery module of this disclosure, on the one hand, through setting up supporting component to make battery cell and backup pad, first curb plate and second curb plate contact, can utilize backup pad, first curb plate and second curb plate to fix battery cell, thereby can prevent that the battery cell from taking place the problem that drops at the in-process of using, and can prevent that the battery cell from taking place the problem of warping at the in-process of assembly.

On the other hand, through setting up backup pad, first curb plate and second curb plate as an organic whole formula structure, can improve supporting component's structural strength to can improve battery module's structural strength, reduce battery module and take place the probability of damaging in the use. Meanwhile, when the battery module is assembled, the step of assembling the supporting component is not needed any more, and the battery is only required to be directly put into the integrated supporting component, so that the assembling efficiency of the battery module can be improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic structural view of an exemplary embodiment of a battery module according to the present disclosure.

Fig. 2 is a partial schematic structural view of a first view of an exemplary embodiment of a battery module according to the present disclosure.

Fig. 3 is a partial schematic structural view of a second view of an exemplary embodiment of a battery module according to the present disclosure.

Fig. 4 is a schematic structural view of an example embodiment of a support assembly of the present disclosure.

Fig. 5 is a partial schematic structural view of a first view of another exemplary embodiment of a battery module according to the present disclosure.

Fig. 6 is a partial schematic structural view of a second view of another exemplary embodiment of a battery module according to the present disclosure.

Fig. 7 is a partial schematic structure view of still another exemplary embodiment of a battery module according to the present disclosure.

Fig. 8 is a schematic structural view of an example embodiment of a battery cell of the present disclosure.

Reference numerals illustrate:

01. a battery module; 1. a support assembly; 11. a support plate; 12. a first side plate; 13. a second side plate; 14. an accommodation space; 15. a first flanging structure; 151. a first connection portion; 16. a second flanging structure; 161. a second connecting portion;

2. a single battery; 21. a battery case; 211. a first surface; 212. a second surface; 213. a third surface; 22. a first pole; 23. a second post;

3. an end plate;

4. a connecting plate; 41. a first connection plate; 42. a second connecting plate;

5. a case; 51. a receiving chamber;

6. a first bus assembly; 7. and a second bus assembly.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.

In the present application, unless explicitly specified and limited otherwise, the term "coupled" is to be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed; can be directly connected or indirectly connected through an intermediate medium. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The exemplary embodiment of the present disclosure provides a battery module 01, which, referring to fig. 1 to 8, may include a support assembly 1 and a unit cell 2; the support assembly 1 comprises a support plate 11, a first side plate 12 and a second side plate 13 which are oppositely arranged, wherein the first side plate 12 and the second side plate 13 extend in a direction far away from the support plate 11, the first side plate 12 and the second side plate 13 enclose an accommodating space 14, and the support plate 11, the first side plate 12 and the second side plate 13 are of an integrated structure; the unit cells 2 are located in the receiving space 14 and are in contact with the support plate 11, the first side plate 12, and the second side plate 13.

The battery module 01 of this disclosure, on the one hand, through setting up supporting component 1 to make battery cell 2 and backup pad 11, first side board 12 and second curb plate 13 contact, can utilize backup pad 11, first side board 12 and second curb plate 13 to fix battery cell 2, thereby can prevent that battery cell 2 from taking place the problem that drops in the in-process of using, and can prevent that battery cell 2 from taking place the problem of deformation in the in-process of assembly.

On the other hand, by setting the support plate 11, the first side plate 12 and the second side plate 13 as an integral structure, the structural strength of the support assembly 1 can be improved, so that the structural strength of the battery module 01 can be improved, and the probability of damage of the battery module 01 in the use process can be reduced. Meanwhile, when the battery module 01 is assembled, the step of assembling the support assembly 1 is not needed any more, and the battery is only needed to be directly put into the integrated support assembly 1, so that the assembly efficiency of the battery module 01 can be improved.

The integral structure herein refers to a structure in which the support plate 11 and the first and second side plates 12 and 13 are integrally formed by an extrusion process or a sheet metal or a stamping process, and are not connected by a connection method such as welding, riveting, or screw connection.

In one embodiment of the present disclosure, as shown with reference to fig. 4 and 5, the battery module 01 may further include two end plates 3 disposed opposite to each other. The two oppositely disposed end plates 3 may be connected end to end with the oppositely disposed first side plate 12 and second side plate 13.

It should be noted that, the end-to-end connection manner of the two end plates 3, the first side plate 12 and the second side plate 13 may be understood that the two end plates 3 may be a first end plate and a second end plate, where one end of the first end plate is connected to one end of the first side plate 12, the other end of the first side plate 12 may be connected to one end of the second end plate, the other end of the second end plate may be connected to one end of the second side plate 13, and the other end of the second side plate 13 may be connected to the other end of the first end plate, so that the two end plates 3 that are oppositely disposed and the first side plate 12 and the second side plate 13 that are oppositely disposed enclose into a ring shape.

In one embodiment, one end of the end plate 3 is connected with the supporting plate 11, so that the connection strength between the end plate 3 and the supporting component 1 can be improved, the structural strength of the whole battery module 01 is improved, and the problem that the end plate 3 is separated from the supporting component 1 in the using process of the battery module 01 is prevented.

In this embodiment, the end plate 3 and the support plate 11, the first side plate 12 and the second side plate 13 may be connected by welding, riveting, screw connection, etc., so that the two parts of the end plate 3 and the support assembly 1 may be manufactured and assembled separately, and compared with the scheme of simultaneously manufacturing the end plate 3 and the support assembly 1, the manufacturing difficulty may be reduced.

But not limited to this, end plate 3 can also be with backup pad 11, first side board 12 and second side board 13 integrated into one piece structure, promptly through extrusion technology or panel beating, stamping process integrated into one piece between end plate 3 and backup pad 11, first side board 12, the second side board 13, set up like this can reduce the connection structure between end plate 3 and backup pad 11, first side board 12 and the second side board 13, prevent that battery module 01 from appearing stress concentration when atress, the connection structure between end plate 3 and backup pad 11, first side board 12 and the second side board 13 from appearing, lead to each connection structure department to take place to fracture, thereby can promote battery module 01's structural strength.

In one embodiment, when the battery module 01 includes two end plates 3, the support plate 11, the first side plate 12, and the second side plate 13 may enclose the receiving space 14. The support plate 11 may be provided in a rectangular shape, and the first side plate 12, the second side plate 13, and the two end plates 3 may be connected end to form a rectangular loop such that the receiving space 14 is in a rectangular shape in orthographic projection on the support plate 11.

Of course, in other example embodiments of the present disclosure, the support plate 11 may also be provided in a trapezoid or the like, and the first side plate 12, the second side plate 13, and the two end plates 3 may be connected end to form a trapezoid loop or the like, so that the front projection of the accommodation space 14 on the support plate 11 is in a trapezoid or the like.

In one embodiment of the present disclosure, referring to fig. 5, the unit cells 2 may be in contact with two end plates 3, i.e., two end plates 3, a support plate 11, and first and second side plates 12 and 13 are in contact with the unit cells 2, so that the unit cells 2 can be fixed through the end plates 3, the support plate 11, the first and second side plates 12 and 13 together, the unit cells 2 are further prevented from falling off from the battery module 01, and the problem that the unit cells 2 are deformed during assembly can be further prevented.

In one embodiment of the present disclosure, referring to fig. 8, the unit cell 2 may include a battery case 21 and an electric core. The battery cell is a unit formed by winding or laminating a stacking part, and the stacking part comprises a first electrode, a separator and a second electrode. When the first electrode is a positive electrode, the second electrode is a negative electrode. Wherein the polarities of the first electrode and the second electrode are interchangeable. The battery cells may be disposed within a battery housing 21.

The battery case 21 may be substantially rectangular parallelepiped, and the battery case 21 may have a length direction X, a height direction Y, and a thickness direction Z. In one embodiment, the battery case 21 may include two opposing first surfaces 211, two second surfaces 212, and two third surfaces 213. Wherein, the area of the first surface 211 is larger than the area of the second surface 212, the area of the second surface 212 is larger than the area of the third surface 213, the length direction X is perpendicular to the third surface 213, the height direction Y is perpendicular to the second surface 212, and the thickness direction Z is perpendicular to the first surface 211. After the battery case 21 is provided in this structure, the space utilization of the battery module 01 can be improved, thereby improving the energy density of the battery module 01.

In one embodiment, the two first surfaces 211, the two second surfaces 212, and the two third surfaces 213 may enclose a receiving portion, and the battery cell may be located in the receiving portion, so that the battery cell can be reliably sealed.

Referring to fig. 5, when the unit cells 2 are placed in the receiving space 14, two first surfaces 211 may be disposed opposite to the two end plates 3 in one-to-one correspondence, one of the second surfaces 212 may be disposed opposite to the support plate 11, and two third surfaces 213 may be disposed opposite to the first side plate 12 and the second side plate 13 in one-to-one correspondence. Alternatively, the two first surfaces 211 may be disposed opposite the first side plate 12 and the second side plate 13 in one-to-one correspondence, one of the second surfaces 212 may be disposed opposite the support plate 11, and the two third surfaces 213 may be disposed opposite the two end plates 3 in one-to-one correspondence.

The material of the battery case 21 may be a metal material, for example: steel, aluminum, etc. The battery housing 21 may be of an integrally formed type structure, namely: the two first surfaces 211, the two second surfaces 212 and the two third surfaces 213 can be integrally manufactured, so that the connection position of the battery shell 21 can be reduced while the greater structural strength of the battery shell 21 is ensured, the possibility of cracking at the connection position can be reduced, and the metal shell can be ensured to have better tightness to the battery cell. But is not limited thereto, the battery case 21 may be a separate structure, which is also within the scope of the present disclosure.

In one embodiment, the unit cell 2 may further include: a first pole 22. The first pole 22 may be provided on a surface of the battery case 21 parallel to the height direction Y, that is: the first pole 22 may be disposed on the first surface 211 or the third surface 213. The first pole 22 may be electrically connected to a battery cell, for example: the first electrode 22 may be connected to a first electrode of the battery cell, where when the first electrode is a positive electrode, the first electrode 22 is a positive electrode of the unit cell 2, and when the first electrode is a negative electrode, the first electrode 22 is a negative electrode of the unit cell 2.

In this embodiment, when the first electrode 22 is connected to the first electrode, the battery case 21 may be connected to the second electrode, that is, the first electrode 22 and the battery case 21 may be used as the positive and negative electrodes of the unit battery 2, respectively.

The unit cell 2 may further include: the second pole 23, the second pole 23 may be disposed on a surface of the battery case 21 parallel to the height direction Y, that is: the second post 23 may be disposed on the first surface 211 or the third surface 213. The second pole 23 may be electrically connected to the cell, for example: the second pole 23 may be connected to the second electrode of the battery cell, when the second electrode is a positive electrode, the second pole 23 is the positive electrode of the unit cell 2, and when the second electrode is a negative electrode, the second pole 23 is the negative electrode of the unit cell 2, i.e. the first pole 22 and the second pole 23 may be the positive and negative electrodes of the unit cell 2, respectively.

In one embodiment, the first pole 22 and the second pole 23 may be both located on the same first surface 211, so as to save space occupied by the unit battery 2 by the battery module 01, thereby improving space utilization of the battery module 01 and energy density of the battery module 01.

But not limited thereto, the first and second poles 22 and 23 may be located at opposite first surfaces 211, respectively, or the first pole 22 may be located at the first surface 211, the second pole 23 may be located at the third surface 213, or the first pole 22 may be located at the third surface 213, the second pole 23 may be located at the first surface 211, or the first and second poles 22 and 23 may be located at opposite third surfaces 213, respectively.

In addition, the first pole 22 and the second pole 23 may both be located on the second surface 212, and may be located away from the second surface 212 of the support plate 11.

In one embodiment, the first side plate 12 and the first electrode post 22 may be located at one side of the battery module 01 in the length direction X, so that the first electrode post 22 may be located at a side edge position of the battery module 01, which can facilitate connection of other electrical connection structures with the first electrode post 22.

Referring to fig. 2 and 5, the distance between the side of the first pole 22 adjacent to the support plate 11 and the support plate 11 is greater than or equal to the height of the first side plate 12. Namely: it will be appreciated that the first pole 22 is further away from the support plate 11 than the first side plate 12, and the first side plate 12 does not shield the first pole 22, so that the first pole 22 can be completely exposed, and thus the first side plate 12 can be prevented from affecting the connection between other electrical connection structures and the first pole 22.

In one embodiment, referring to fig. 7, the battery module 01 may further include: a first busbar assembly 6. The first busbar assembly 6 may be connected with the first post 22 and may be located on the same side of the battery module 01 as the first side plate 12. The height of the first side plate 12 is less than or equal to the distance between the side of the first busbar assembly 6 near the support plate 11 and the support plate 11. Namely: it will be appreciated that the first side plate 12 is closer to the support plate 11 than the first busbar assembly 6, and when the first side plate 12 is connected to the first post 22, the first side plate 12 does not block the position of the first busbar assembly 6, so that interference between the first side plate 12 and the first busbar assembly 6 can be avoided to affect the electrical connection performance and the electrical connection stability between the first busbar assembly 6 and the first post 22.

In one embodiment, the second side plate 13 and the second post 23 may be positioned at the other side of the battery module 01 in the length direction X, so that the second post 23 may be positioned at the edge of the other side of the battery module 01, which can facilitate connection of other electrical connection structures with the second post 23.

The distance between the side of the second pole 23 near the support plate 11 and the support plate 11 is greater than or equal to the height of the second side plate 13. Namely: it will be appreciated that the second post 23 is further away from the support plate 11 than the second side plate 13, and the second side plate 13 does not shield the second post 23, so that the second post 23 can be completely exposed, and thus the second side plate 13 can avoid affecting the connection of other electrical connection structures with the second post 23.

In one embodiment, referring to fig. 7, the battery module 01 may further include: a second busbar assembly 7. The second busbar assembly 7 may be connected to the second post 23 and may be located on the same side of the battery module 01 as the second side plate 13. The height of the second side plate 13 is less than or equal to the distance between the side of the second busbar assembly 7 close to the support plate 11 and the support plate 11. Namely: it will be appreciated that the second side plate 13 is closer to the support plate 11 than the second busbar assembly 7, and when the second side plate 13 is connected to the second post 23, the second side plate 13 does not block the position of the second busbar assembly 7, so that interference between the second side plate 13 and the second busbar assembly 7 can be avoided to affect the electrical connection performance and the electrical connection stability between the second busbar assembly 7 and the second post 23.

It should be noted that the other electrical connection structures may include, but are not limited to, the first busbar assembly 6 and the second busbar assembly 7.

In one embodiment of the present disclosure, referring to fig. 2 to 7, the support assembly 1 may further include: a first flanging structure 15. The first burring 15 may be connected to the first side plate 12 and may extend to a side remote from the receiving space 14. Namely: the first flange structure 15 may extend to a side of the first side plate 12 remote from the second side plate 13.

The first flanging structure 15 may be provided with a first connection portion 151, and the first connection portion 151 may be used to fix the support assembly 1, so that the entire battery module 01 may be fixed. For example, when the battery module 01 is mounted in the battery case, the first connection part 151 may be connected with the battery case to fix the support assembly 1 with the battery case.

In one embodiment, the first flanging structure 15 may include a plurality of first connection portions 151, and the plurality of first connection portions 151 may be uniformly arranged along the thickness direction Z of the unit battery 2, so as to improve the connection stability of the support assembly 1 and the battery box, and prevent the support assembly 1 from falling off after being jolt or stressed.

The first connection part 151 may be a connection hole through which the connection member may pass to fix the support assembly 1 with the battery case. However, the first connection portion 151 is not limited thereto, and may have a structure such as a buckle.

In one embodiment, a side of the first busbar assembly 6 remote from the accommodation space 14 may be closer to the accommodation space 14 than a side of the first burring structure 15 remote from the accommodation space 14. So set up, can utilize first turn-ups structure 15 to protect first busbar subassembly 6, when battery module 01 receives the impact force with the side that first busbar is located same one side, first turn-ups structure 15 can bear this impact force for the first time to can reduce the probability that this impact force damaged first busbar subassembly 6. Furthermore, such an arrangement can avoid the first busbar assembly 6 blocking the first connection portion 151, so that the first busbar assembly 6 can not affect the fixing of the support assembly 1.

In one embodiment, the first side panel 12 and the first flange structure 15 may be joined in a smooth transition, such as: the junction of first side plate 12 and first turn-ups structure 15 can be the fillet, or the junction of first side plate 12 and first turn-ups structure 15 can be "S" shape to can reduce the stress concentration of first side plate 12 and first turn-ups structure 15 junction, promote the structural strength of first side plate 12 and first turn-ups structure 15 junction, and then can promote the bearing capacity of supporting component 1.

The first side plate 12 and the first flange structure 15 may be an integral structure, that is: the first side plate 12 and the first flanging structure 15 are integrally formed through an extrusion process or a sheet metal or stamping process, and are not connected through a welding, riveting, screw connection and other connection modes. By this arrangement, the structural strength of the junction of the first side plate 12 and the first burring structure 15 can be further improved.

In one embodiment of the present disclosure, the support assembly 1 may further comprise a second cuff structure 16. The second burring structure 16 may be connected to the second side plate 13 and may extend to a side away from the receiving space 14. Namely: the second flange structure 16 may extend to a side of the second side plate 13 remote from the first side plate 12.

The second flanging structure 16 may be provided with a second connecting portion 161, and the second connecting portion 161 may be used to fix the support assembly 1, so that the entire battery module 01 can be fixed. For example, when the battery module 01 is mounted in the battery case, the second connection part 161 may be connected with the battery case to fix the support assembly 1 with the battery case.

In one embodiment, the second flanging structure 16 may include a plurality of second connection portions 161, and the plurality of second connection portions 161 may be uniformly arranged along the thickness direction Z of the unit battery 2, so as to improve the connection stability between the support assembly 1 and the battery box, and prevent the support assembly 1 from falling off after being jolt or stressed.

The second connection part 161 may be a connection hole through which the connection member may pass to fix the support assembly 1 with the battery case. However, the second connection portion 161 is not limited thereto, and may have a structure such as a buckle.

In one embodiment, the side of the second busbar assembly 7 remote from the receiving space 14 may be closer to the receiving space 14 than the side of the second flange structure 16 remote from the receiving space 14. So set up, can utilize second turn-ups structure 16 to protect second busbar subassembly 7, when battery module 01 receives the impact force with the side that the second busbar is located same one side, second turn-ups structure 16 can bear this impact force for the first time to can reduce the probability that this impact force damaged second busbar subassembly 7. Also, such an arrangement can avoid the second busbar assembly 7 blocking the second connection portion 161, so that the second busbar assembly 7 can not affect the fixing of the support assembly 1.

In one embodiment, the second side panel 13 and the second flange structure 16 may be joined in a smooth transition, for example: the junction of second curb plate 13 and second turn-ups structure 16 can be the fillet, or the junction of second curb plate 13 and second turn-ups structure 16 can be "S" shape to can reduce the stress concentration of second curb plate 13 and second turn-ups structure 16 junction, promote the structural strength of second curb plate 13 and second turn-ups structure 16 junction, and then can promote the bearing capacity of supporting component 1.

The second side plate 13 and the second burring structure 16 may be an integral structure, that is: the second side plate 13 and the second flanging structure 16 are integrally formed through an extrusion process or a sheet metal or stamping process, and are not connected through a connecting mode such as welding, riveting, screw connection and the like. By this arrangement, the structural strength of the junction of the second side plate 13 and the second burring structure 16 can be further improved.

In one embodiment, the support plate 11 may be provided with both the first and second flanging structures 15, 16, i.e. the support plate 11 may be provided with both the first and second connection portions 151, 161. By this arrangement, both sides of the support assembly 1 in the longitudinal direction X can be fixed at the same time by the first connecting portion 151 and the second connecting portion 161, so that the stability of fixing the support assembly 1 can be further improved.

In one embodiment of the present disclosure, referring to fig. 5 and 6, the battery module 01 may further include a connection plate 4. The connection plate 4 may be located at a side of the unit cells 2 remote from the support plate 11, and the connection plate 4 may be connected with the two end plates 3. That is, the connection plate 4 may be disposed opposite the second surface 212 of the unit cell 2 away from the support plate 11. Through setting up connecting plate 4, can cooperate to the battery cell 2 spacing in the motion of direction of height Y with backup pad 11, prevent that battery cell 2 from taking place to drop at the in-process of using. And, the connecting plate 4 can protect the second surface 212 of the battery cell 2 that keeps away from backup pad 11, and when the battery module 01 receives the impact force near one side of connecting plate 4, connecting plate 4 can cushion this impact force to reduce the battery cell 2 and keep away from the second face of backup pad 11 and receive this impact force and take place the probability of damage.

In one embodiment, the connection plate 4 may contact the second surface 212 of the unit cell 2 away from the support plate 11, so that the connection plate 4 may be engaged with the support plate 11, the first side plate 12, the second side plate 13, and the two end plates 3 to more firmly fix the unit cell 2.

In one embodiment, the connection plate 4 may include: a first connection plate 41 and a second connection plate 42. Wherein a space may be provided between the first connection plate 41 and the second connection plate 42, and the first connection plate 41 is close to the first side plate 12 with respect to the second connection plate 42, and the second connection plate 42 is close to the second side plate 13 with respect to the first connection plate 41. With this arrangement, the weight of the connection plate 4 can be reduced as compared with the previous embodiment, so that the weight of the entire battery module 01 can be reduced as much as possible while good fixing and protection of the unit cells 2 can be achieved, and the energy density of the battery can be improved.

In one embodiment of the present disclosure, the support assembly 1 may be multiplexed into a heat exchanger plate. That is, a channel may be provided in the support assembly 1, and a heat exchange medium may be provided in the channel, through which heat emitted from the unit cells 2 may be exchanged with the heat exchange medium. Namely: when the single battery 2 needs to be cooled, a heat exchange medium with lower temperature can be introduced into the heat exchange plate so as to cool the single battery 2; when the temperature of the single battery 2 needs to be raised, a heat exchange medium with higher temperature can be introduced into the heat exchange plate so as to heat the single battery 2. By the arrangement, a heat exchange plate does not need to be additionally arranged in the battery module 01, so that the thickness of the battery module 01 can be effectively reduced, and the weight of the battery box 5 can be effectively reduced.

But is not limited thereto, the support assembly 1 may not be reused as a heat exchange plate, and the battery module 01 may be separately provided with a heat exchange plate, which may be located at a side of the support assembly 1 near or far from the unit cells 2.

In one embodiment of the present disclosure, referring to fig. 5, at least two unit cells 2 may be provided, and at least two unit cells 2 may be sequentially stacked in the thickness direction Z to form a battery pack. The two end plates 3 may be located at both sides of the thickness direction Z of the battery pack, respectively, so that the battery pack can be fixed by the support plate 11, the first side plate 12, the second side plate 13, and the two end plates 3.

And, when at least two battery cells 2 assemble in accommodation space 14 and form the group battery, in order to can make battery cell 2 fixed firm, can produce the extrusion between two adjacent battery cells 2 to can be close to the surface of first curb plate 12 and second curb plate 13 to battery cell 2 through setting up first curb plate 12 and second curb plate 13 and carry out spacing, prevent that battery cell 2 from being close to the surface of first curb plate 12 and second curb plate 13 and taking place to warp.

Simultaneously, through setting up two end plates 3, can be to the battery cell 2 be close to the surface of two end plates 3 spacing, prevent that battery cell 2 from being close to the surface of two end plates 3 and taking place to warp at the in-process of group.

Referring to fig. 1, the battery module 01 may further include a case 5, wherein the case 5 may have a receiving cavity 51, and the unit cells 2 and the support assembly 1 may be disposed in the receiving cavity 51.

It should be noted that, the battery module 01 further includes other necessary components and compositions, such as a circuit board, a control component, etc., which can be correspondingly supplemented by those skilled in the art according to the specific use requirements of the battery module 01, and will not be described herein.

The references to "parallel", "perpendicular" in this application are not entirely parallel, perpendicular, but rather are to some degree of error; for example, the included angle between the two is greater than or equal to 0 ° and less than or equal to 5 °, i.e. the two are considered to be parallel to each other; the included angle between the two is more than or equal to 85 degrees and less than or equal to 95 degrees, namely the two are considered to be mutually perpendicular.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (14)

1. A battery module, comprising:

the support assembly comprises a support plate, a first side plate and a second side plate which are oppositely arranged, wherein the first side plate and the second side plate extend in a direction far away from the support plate, the first side plate and the second side plate enclose an accommodating space, and the support plate, the first side plate and the second side plate are of an integrated structure;

and the single battery is positioned in the accommodating space and is in contact with the supporting plate, the first side plate and the second side plate.

2. The battery module according to claim 1, further comprising:

and the two end plates are oppositely arranged and connected with the first side plate and the second side plate in an end-to-end mode, and the single batteries are in contact with the two end plates.

3. The battery module according to claim 2, wherein the unit cells include:

a battery case having a length direction and a height direction;

the first pole is arranged on the surface of the battery shell, which is parallel to the height direction;

the first side plate and the first pole are positioned on one side of the battery module in the length direction, and the distance between one surface of the first pole, which is close to the supporting plate, and the supporting plate is greater than or equal to the height of the first side plate.

4. The battery module according to claim 3, wherein the unit cells further comprise:

and the second pole is arranged on the surface of the battery shell, which is parallel to the height direction, and the second side plate and the second pole are positioned on the other side of the battery module in the length direction, and the distance between one surface of the second pole, which is close to the supporting plate, and the supporting plate is greater than or equal to the height of the second side plate.

5. The battery module according to claim 3, further comprising:

the first busbar assembly is connected with the first pole, and is located on the same side of the battery module with the first side plate, and the height of the first side plate is smaller than or equal to the distance between one face, close to the supporting plate, of the first busbar assembly and the supporting plate.

6. The battery module according to claim 4, further comprising:

and the second busbar assembly is connected with the second pole and is positioned on the same side of the battery module with the second side plate, and the height of the second side plate is smaller than or equal to the distance between one surface, close to the supporting plate, of the second busbar assembly and the supporting plate.

7. The battery module of claim 5, wherein the support assembly further comprises: a first flanging structure;

the first flanging structure is connected with the first side plate and extends to one side far away from the accommodating space, and a first connecting part is arranged on the first flanging structure and used for fixing the supporting component.

8. The battery module of claim 7, wherein a side of the first busbar assembly remote from the receiving space is closer to the receiving space than a side of the first burring structure remote from the receiving space.

9. The battery module of claim 6, wherein the support assembly further comprises: a second flanging structure;

the second flanging structure is connected with the second side plate and extends towards the direction far away from the accommodating space, and a second connecting part is arranged on the second flanging structure and used for fixing the supporting component.

10. The battery module of claim 9, wherein a face of the second busbar assembly remote from the receiving space is closer to the receiving space than a face of the second burring structure remote from the receiving space.

11. The battery module according to claim 4, wherein the battery case further has a thickness direction, the battery case includes two opposing first surfaces, two second surfaces, and two third surfaces, the first surfaces have an area larger than that of the second surfaces, the second surfaces have an area larger than that of the third surfaces, the length direction is perpendicular to the third surfaces, the height direction is perpendicular to the second surfaces, and the thickness direction is perpendicular to the first surfaces;

the first pole and the second pole are located on the same first surface, or the first pole and the second pole are located on two opposite third surfaces respectively.

12. The battery module according to claim 11, wherein at least two of the unit cells are provided, the at least two unit cells are stacked one on another in the thickness direction to form a battery pack, and the two end plates are located on both sides of the battery pack in the thickness direction, respectively.

13. The battery module according to claim 2, further comprising:

the connecting plate is positioned on one side, far away from the supporting plate, of the single battery, and the connecting plate is connected with the two end plates.

14. The battery module according to claim 13, wherein the connection plate comprises:

the first connecting plate and the second connecting plate have a space between them, and the first connecting plate is close to the first side plate relative to the second connecting plate, and the second connecting plate is close to the second side plate relative to the first connecting plate.

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