Battery device

Abstract

The utility model relates to the technical field of batteries, and provides a battery device which comprises a battery box body, a plurality of battery columns, a heat exchange assembly and a mounting rack, and the battery box body comprises a frame; the plurality of battery columns are distributed in a first direction, each battery column comprises a plurality of batteries distributed along a second direction, and the first direction and the second direction intersect; the heat exchange assembly comprises a heat exchange plate and a liquid collecting pipe, a flow channel is formed in the heat exchange plate, the liquid collecting pipe is communicated with the flow channel, at least part of the heat exchange plate is located between the two adjacent battery columns, and a first end part is formed at the end part of the heat exchange plate in the extending direction; the mounting rack is fixed on the frame, a first accommodating part and a second accommodating part are formed on the mounting rack, the first end part is limited in the first accommodating part, and the inner surface of the second accommodating part is arranged around the partial periphery of the liquid collecting pipe. And the liquid collecting pipe is limited in the second accommodating part. According to the battery, the heat exchange assembly can be conveniently fixed on the battery box body through the mounting rack.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery device. Background Art

[0002] The battery device is usually provided with a heat exchange component, which is used to perform heat exchange with the battery. However, in the related art, it is difficult to fix the heat exchange component to the battery box.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0004] The utility model provides a battery device, which can conveniently fix a heat exchange component to a battery box.

[0005] The battery device comprises:

[0006] A battery box, including a frame;

[0007] A plurality of battery columns are located in the battery box, the plurality of battery columns are distributed in a first direction, the battery columns include a plurality of batteries distributed along a second direction, and the first direction and the second direction intersect;

[0008] A heat exchange assembly, the heat exchange assembly comprising a heat exchange plate and a liquid collecting pipe, a flow channel is formed in the heat exchange plate, the liquid collecting pipe is connected to the flow channel, the heat exchange plate is at least partially located between two adjacent battery columns, and the end of the heat exchange plate in the extension direction thereof forms a first end;

[0009] The mounting frame is fixed on the frame, and the mounting frame is formed with a first accommodating portion and a second accommodating portion. The first end portion is limited in the first accommodating portion, and the inner surface of the second accommodating portion is arranged around a part of the outer circumference of the liquid collecting pipe.

[0010] In the battery device provided by the utility model, since the heat exchange component is not additionally fixedly connected to the mounting frame, the positions of the heat exchange plates and the liquid collecting pipes of the heat exchange component can be finely adjusted without generating large stress on the heat exchange plates and the liquid collecting pipes, thereby causing damage thereto.

[0011] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to better understand the present disclosure, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, related elements or components may have different arrangements as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each drawing.

[0013] in:

[0014] Figure 1 It is a partial structural schematic diagram of an exemplary embodiment of the battery device disclosed in the present invention;

[0015] Figure 2 It is a partial structural schematic diagram of an exemplary embodiment of the battery device disclosed in the present invention;

[0016] Figure 3 It is a structural schematic diagram of a mounting frame in an exemplary embodiment of a battery device disclosed in the present invention;

[0017] Figure 4 A schematic structural diagram of a mounting frame in an exemplary embodiment of a battery device disclosed herein from another perspective;

[0018] Figure 5 It is a structural schematic diagram of another perspective of a mounting frame in an exemplary embodiment of the battery device disclosed in the present invention.

[0019] Description of reference numerals:

[0020] 1. Battery case; 11. Frame; 12. Bottom plate; 2. Battery array; 21. Battery; 3. Heat exchange assembly; 31. Heat exchange plate; 311. First end; 32. Collecting pipe; 4. Mounting frame; 41. First accommodating portion; 42. Second accommodating portion; 411. First sub-accommodating portion; 412. Second sub-accommodating portion; 421. Support surface; 51. Main plate; 511. First main plate; 512. Second main plate; 513. Third main plate; 52. First side plate; 53. Second side plate; 54. Flanging; 55. Support portion. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the exemplary embodiments of the present disclosure to clearly and completely describe the technical solutions in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present disclosure.

[0022] In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0023] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0024] Further, in the description of the present disclosure, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present disclosure are described at the angles shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present disclosure. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to one or more "upper", "lower", or "inner", "outer" of another element, it can not only be directly connected to the "upper", "lower", "inner", "outer" of another element or elements, but can also be indirectly connected to the "upper", "lower", "inner", "outer" of another element or elements through an intermediate element.

[0025] like Figure 1-5 As shown, Figure 1 It is a partial structural schematic diagram of an exemplary embodiment of the battery device disclosed in the present invention. Figure 2 It is a partial structural schematic diagram of an exemplary embodiment of the battery device disclosed in the present invention. Figure 3 This is a schematic diagram of the structure of a mounting frame in an exemplary embodiment of a battery device disclosed herein. Figure 4 This is a schematic structural diagram of another perspective of a mounting frame in an exemplary embodiment of the battery device disclosed herein. Figure 5 It is a structural schematic diagram of another perspective of a mounting frame in an exemplary embodiment of the battery device disclosed in the present invention.

[0026] The battery device includes: a battery box 1, a plurality of battery columns 2, a heat exchange component 3, and a mounting frame 4. The battery box 1 includes a frame 11. The plurality of battery columns 2 are located in the battery box 1. The plurality of battery columns 2 are distributed in a first direction X. The battery columns 2 include a plurality of batteries 21 distributed along a second direction Y. The first direction X and the second direction Y intersect. The heat exchange component 3 includes a heat exchange plate 31 and a collecting pipe 32. A flow channel is formed in the heat exchange plate 31. The collecting pipe 32 is connected to the flow channel. The heat exchange plate 31 is at least partially located between two adjacent battery columns 2. The end of the heat exchange plate 31 in its extension direction forms a first end 311. The mounting frame 4 is fixed on the frame 11. The mounting frame 4 is formed with a first accommodating portion 41 and a second accommodating portion 42. The first end 311 is limited to the first accommodating portion 41. The inner surface of the second accommodating portion 42 is arranged around a part of the outer periphery of the collecting pipe 32.

[0027] In the battery device provided by this exemplary embodiment, since the heat exchange assembly is not additionally fixed to the mounting frame, the positions of the heat exchange plates and the liquid collecting pipes of the heat exchange assembly can be fine-tuned without generating large stress on the heat exchange plates and the liquid collecting pipes, thereby causing damage thereto.

[0028] In this exemplary embodiment, during the assembly process of the battery device, the mounting bracket 4 can be first assembled to the battery pack including the heat exchange component 3 and the battery 21, and then the mounting bracket 4 can be assembled into the battery box together with the battery pack. Finally, the mounting bracket 4 can be fixed to the frame 11 to fix the heat exchange component.

[0029] In this exemplary embodiment, Figure 1-5 As shown, the heat exchange plate 31 includes two first end portions 311 opposite to each other in the extension direction thereof. The heat exchange assembly 3 may include two liquid collecting pipes 32 oppositely arranged in the second direction Y. The extension direction of the liquid collecting pipes 32 may intersect with the extension direction of the heat exchange plate 31. For example, the extension direction of the liquid collecting pipes 32 may be perpendicular to the extension direction of the heat exchange plate 31. The two liquid collecting pipes 32 may form a water inlet pipe and a water return pipe, respectively. The battery box includes two frames 11 oppositely arranged in the second direction Y. On the same side of the battery device, the mounting frame 4 fixed to the frame may limit the first end portion 311 and the liquid collecting pipe 32.

[0030] In this exemplary embodiment, the first end portion 311 may be a current collector.

[0031] In this exemplary embodiment, Figure 1-5 As shown, the battery case 1 also includes a bottom plate 12; the inner surface of the first accommodating portion 41 is at least used to limit the first end 311 in the first direction X; and or, the inner surface of the second accommodating portion 42 is at least used to limit the collecting tube 32 in a direction perpendicular to the bottom plate 12.

[0032] In this exemplary embodiment, Figure 1-5 As shown, the inner surface of the second accommodation portion 42 is an arc structure, and the inner surface of the arc structure is used to match the outer surface of the liquid collecting pipe 32; in the mutually fixed mounting frame 4 and frame 11, the opening of the arc structure is arranged toward the side of the battery 21. The liquid collecting pipe 32 can enter the second accommodation portion 42 through the opening of the arc structure. This arrangement can facilitate the assembly of the mounting frame 4 to the heat exchange assembly 3.

[0033] In this exemplary embodiment, Figure 1-5 As shown, the inner surface of the second receiving portion 42 includes a support surface 421, and the support surface 421 is used to support the liquid collecting pipe 32. The support surface 421 can play a supporting role for the liquid collecting pipe 32.

[0034] In this exemplary embodiment, Figure 1-5 As shown, the first receiving portion 41 includes a first sub-receiving portion 411 and a second sub-receiving portion 412, and the dimension S1 of the first sub-receiving portion 411 in the first direction X is greater than the dimension S2 of the second sub-receiving portion 412 in the first direction X, and the dimension S2 of the second sub-receiving portion 412 in the first direction X is smaller than the dimension of the first end portion 311 in the first direction X. On the one hand, the first end portion 311 can be inserted into the second sub-receiving portion 412 by interference fit, and the second sub-receiving portion 412 can fix the first end portion 311, and at the same time, the gap between the first end portion 311 and the first sub-receiving portion 411 can be filled with glue for fixing; on the other hand, before the battery pack enters the battery box, the size of the second sub-receiving portion 412 in the first direction X can be increased by an expander, and during the process of the battery pack entering the battery box, the first end portion 311 has a certain amount of movement, so that the first end portion 311 can be prevented from being damaged. After the battery pack enters the battery box, the expander is removed, so that the first end portion 311 can be inserted into the second sub-receiving portion 412 by interference fit, so as to fix the first end portion 311.

[0035] It should be noted that the first sub-accommodation portion 411 and the second sub-accommodation portion 412 are virtual bodies, and the size S1 of the first sub-accommodation portion 411 in the first direction X and the size S2 of the second sub-accommodation portion 412 in the first direction X are both virtual body sizes, which do not include the physical size forming the virtual body.

[0036] In this exemplary embodiment, Figure 1-5 As shown, the radius of curvature of the arc structure may be greater than the radius of the liquid collecting pipe 32. This arrangement allows the liquid collecting pipe 32 to have a certain amount of movement when the battery pack enters the battery box, thereby preventing the liquid collecting pipe 32 from being damaged.

[0037] In this exemplary embodiment, Figure 1-5As shown, the mounting frame 4 can be bolted to the frame 11. It should be understood that in other exemplary embodiments, the mounting frame 4 can also be fixedly connected to the frame 11 by other means, for example, the mounting frame 4 can also be fixedly connected to the frame 11 by welding, bonding, etc.

[0038] In this exemplary embodiment, Figure 1-5 As shown, the mounting frame 4 includes: a main body plate 51, a first side plate 52, and a second side plate 53. The main body plate 51 is fixed to the frame 11; the first side plate 52 is connected to the main body plate 51, and the first side plate 52 and the main body plate 51 intersect; the second side plate 53 is connected to the main body plate 51, and the second side plate 53 and the main body plate 51 intersect; wherein the first side plate 52 and the second side plate 53 are arranged opposite to each other, and a first accommodating portion 41 is formed between the first side plate 52 and the second side plate 53. The mounting frame 4 formed by the intersection of the main body plate 51 and the first side plate 52 and the second side plate 53 has a high strength.

[0039] In this exemplary embodiment, Figure 1-5 As shown, the main body plate 51 includes: a first main body plate 511, a second main body plate 512, and a third main body plate 513. The first main body plate 511 is located between the first side plate 52 and the second side plate 53; the second main body plate 512 is located on the side of the first side plate 52 away from the second side plate 53; the third main body plate 513 is located on the side of the second side plate 53 away from the first side plate 52; the second main body plate 512 and the third main body plate 513 are respectively fixed to the frame 11. For example, the second main body plate 512 and the third main body plate 513 can be respectively fixed to the side of the frame 11 facing the battery 21 by bolts. The main body plate 51 and the frame 11 have a high fixing strength. The first main body plate 511, the second main body plate 512, and the third main body plate 513 can be integrally formed or spliced.

[0040] In this exemplary embodiment, Figure 1-5 As shown, the first side plate 52 and the second side plate 53 are arranged opposite to each other in the first direction X; the mounting frame 4 also includes: a support portion 55, the support portion 55 is connected to one side of the main plate 51 in the third direction Z, and the third direction Z is perpendicular to the bottom plate 12; a partial surface of the support portion 55 forms at least a partial inner surface of the second accommodating portion 42.

[0041] In this exemplary embodiment, Figure 1-5As shown, at least a portion of the end surface 521 of the first side plate 52 in the third direction Z forms a portion of the inner surface of the second accommodating portion 42; and / or, an end surface 531 of the second side plate 53 in the third direction Z forms at least a portion of the inner surface of the second accommodating portion 42. The end surface 521 of the first side plate 52 in the third direction Z and the end surface 531 of the second side plate 53 in the third direction Z have high strength in the third direction Z, and this arrangement can improve the limiting ability of the second accommodating portion 42 on the liquid collecting pipe 32.

[0042] In this exemplary embodiment, Figure 1-5 As shown, the mounting frame 4 includes a plurality of supporting portions 55, and the supporting portions 55 are spaced apart in the first direction X. Figure 1-5 As shown, the mounting frame 4 includes two support portions 55. It should be understood that in other exemplary embodiments, the mounting frame 4 may include other numbers of support portions 55. For example, the number of support portions 55 in the mounting frame 4 may be 1, 3, 4, 5, etc. A plurality of support portions 55 may achieve a better support effect. At least part of the structure of the first receiving portion may be formed between at least some adjacent support portions 55.

[0043] In this exemplary embodiment, Figure 1-5 As shown, the outer surface of the support portion 55 facing away from the second receiving portion 42 is arc-shaped. This arrangement can reduce the volume of the support portion 55, thereby improving the utilization rate of the internal space of the battery device.

[0044] In this exemplary embodiment, Figure 1-5 As shown, the mounting frame 4 may further include: a flange 54, the flange 54 is connected to the main plate 51, the flange 54 intersects with the main plate 51, and the flange 54 is located on the side of the frame 11 away from the bottom plate 12. The flange 54 can improve the fixing strength between the mounting frame 4 and the frame 11.

[0045] In this exemplary embodiment, the battery 21 may be a cylindrical battery, and the heat exchange plate 31 is at least partially located between the curved surfaces of adjacent cylindrical batteries. Alternatively, the battery 21 may be a quadrangular prism battery, and the heat exchange plate 31 is at least partially located between the largest side surfaces of adjacent quadrangular prism batteries. The largest side surface of a battery is the side surface with the largest area in the battery.

[0046] It should be noted that a battery includes a cell and an electrolyte, and a battery is the smallest unit capable of performing electrochemical reactions such as charge / discharge. A cell refers to a unit formed by winding or laminating a stacked portion, wherein the stacked portion includes a first pole sheet, a separator, and a second pole sheet. When the first pole sheet is a positive pole sheet, the second pole sheet is a negative pole sheet. The polarities of the first pole sheet and the second pole sheet can be interchanged. The first pole sheet and the second pole sheet are coated with an active material.

[0047] In this exemplary embodiment, the battery may be a lithium-ion battery. It should be understood that in other exemplary embodiments, the battery may also be a nickel-cadmium battery, a nickel-metal hydride battery, a lithium polymer battery, a sodium-ion battery, a solid-state battery, etc.

[0048] In this exemplary embodiment, the battery can be a square battery, that is, the battery can be a quadrangular prism-type battery. The quadrangular prism-type battery mainly refers to a battery with a prism shape, but it is not strictly limited whether each side of the prism must be a straight line in the strict sense, and the corners between the sides are not necessarily right angles, and can be arc transitions.

[0049] In other exemplary embodiments, the battery may be a cylindrical battery, and the battery case of the cylindrical battery may include two circular end surfaces and a curved surface located between the two circular end surfaces.

[0050] The battery can be a laminated battery, which is not only convenient to group, but also can be processed to obtain a longer battery. Specifically, the battery cell is a laminated battery cell, which has a first pole piece stacked on top of each other, a second pole piece with electrical properties opposite to the first pole piece, and a diaphragm sheet arranged between the first pole piece and the second pole piece, so that multiple pairs of first pole pieces and second pole pieces are stacked to form a laminated battery cell.

[0051] Alternatively, the battery may be a wound battery, that is, a first pole sheet, a second pole sheet with electrical properties opposite to the first pole sheet, and a diaphragm sheet arranged between the first pole sheet and the second pole sheet are wound to obtain a wound battery cell.

[0052] In this exemplary embodiment, the battery device is a battery module or a battery pack.

[0053] The battery module includes a plurality of batteries, which may be square batteries, and the battery module may further include end plates and side plates, which are used to fix the plurality of batteries. The batteries may be cylindrical batteries, which may be arranged on a support plate to form a battery module.

[0054] The battery pack includes a plurality of batteries and a box body, and the box body is used to fix the plurality of batteries.

[0055] It should be noted that the battery pack includes a battery, and the battery may be multiple, and the multiple batteries are arranged in the box. Among them, the multiple batteries can be installed in the box after forming a battery module. Alternatively, the multiple batteries can be directly arranged in the box, that is, there is no need to group the multiple batteries, and the box is used to fix the multiple batteries.

[0056] It should be noted that the battery device proposed in the utility model can be used in various electrical devices, such as mobile phones, portable devices, laptops, various vehicles (such as battery cars, electric cars, etc.), ships, spacecraft, electric toys and electric tools, etc. Further, the above-mentioned spacecraft may include, for example, airplanes, rockets, space shuttles and spacecrafts. The above-mentioned electric toys may include, for example, fixed or mobile electric toys (such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc.). The above-mentioned electric tools may include, for example, metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, specifically, for example, electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers. It should be understood that in various possible embodiments that conform to the design concept of the utility model, the cylindrical battery or battery device proposed in the utility model is not limited to the above-described devices, but can also be applied to all devices using batteries. For the sake of simplicity, the various embodiments in this specification are described by taking vehicles as an example.

[0057] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing what is disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are to be considered merely as exemplary, and the true scope and spirit of the present disclosure are indicated by the claims.

[0058] The drawings in the present disclosure only relate to the structures involved in the present disclosure, and other structures may refer to the usual design. In the absence of conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other to obtain new embodiments. It should be understood by those of ordinary skill in the art that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and should be included in the scope of the claims of the present disclosure.

[0059] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A battery device, characterized in that: The battery device comprises: A battery box (1), comprising a frame (11); A plurality of battery columns (2) are located in the battery box (1), the plurality of battery columns (2) are distributed in a first direction (X), the battery columns (2) include a plurality of batteries (21) distributed along a second direction (Y), and the first direction (X) and the second direction (Y) intersect; A heat exchange assembly (3), the heat exchange assembly (3) comprising a heat exchange plate (31) and a liquid collecting pipe (32), a flow channel being formed in the heat exchange plate (31), the liquid collecting pipe (32) being in communication with the flow channel, the heat exchange plate (31) being at least partially located between two adjacent battery columns (2), and the end of the heat exchange plate (31) in its extension direction forming a first end (311); A mounting frame (4) is fixed on the frame (11), the mounting frame (4) being formed with a first accommodating portion (41) and a second accommodating portion (42), the first end portion (311) being limitedly located in the first accommodating portion (41), and the inner surface of the second accommodating portion (42) being arranged around a portion of the outer circumference of the liquid collecting pipe (32).

2. The battery device according to claim 1, characterized in that: The inner surface of the second accommodating portion (42) is an arc structure, and the inner surface of the arc structure is used to match the outer surface of the liquid collecting pipe (32); In the mounting frame (4) and the frame (11) fixed to each other, the opening of the arc structure is arranged toward one side of the battery (21).

3. The battery device according to claim 1, characterized in that: The first accommodating portion (41) comprises a first sub-accommodating portion (411) and a second sub-accommodating portion (412), wherein the size of the first sub-accommodating portion (411) in the first direction (X) is larger than the size of the second sub-accommodating portion (412) in the first direction (X), and the size of the second sub-accommodating portion (412) in the first direction (X) is smaller than the size of the first end portion (311) in the first direction (X).

4. The battery device according to claim 2, characterized in that: The radius of curvature of the arc structure is greater than the radius of the liquid collecting pipe (32).

5. The battery device according to any one of claims 1 to 4, characterized in that: The mounting frame (4) comprises: A main body plate (51), wherein the main body plate (51) is fixed to the frame (11); A first side plate (52) connected to the main plate (51), wherein the first side plate (52) and the main plate (51) intersect; A second side plate (53) connected to the main plate (51), wherein the second side plate (53) and the main plate (51) intersect; Wherein, the first side plate (52) and the second side plate (53) are arranged opposite to each other, and the first accommodating portion (41) is formed between the first side plate (52) and the second side plate (53).

6. The battery device according to claim 5, characterized in that: The main body plate (51) comprises: A first main body plate (511), located between the first side plate (52) and the second side plate (53); A second main body plate (512), located on a side of the first side plate (52) away from the second side plate (53); a third main body plate (513), located on a side of the second side plate (53) away from the first side plate (52); The second main body plate (512) and the third main body plate (513) are respectively fixed to the frame (11).

7. The battery device according to claim 5, characterized in that: The battery box (1) further comprises a bottom plate (12), and the first side plate (52) and the second side plate (53) are arranged opposite to each other in a first direction (X); The mounting frame (4) further comprises: A support portion (55) connected to one side of the main body plate (51) in a third direction (Z), wherein the third direction (Z) is perpendicular to the bottom plate (12); Part of the surface of the support portion (55) forms at least part of the inner surface of the second receiving portion (42).

8. The battery device according to claim 7, characterized in that: At least a portion of the end surface (521) of the first side plate (52) in the third direction (Z) forms a portion of the inner surface of the second accommodating portion (42); And / or, at least a portion of the end surface (531) of the second side plate (53) in the third direction (Z) forms at least a portion of the inner surface of the second accommodating portion (42).

9. The battery device according to claim 7, characterized in that: The mounting frame (4) comprises a plurality of support portions (55), wherein the support portions (55) are spaced apart in the first direction (X), and at least a portion of the structure of the first accommodating portion is formed between at least some adjacent support portions (55).

10. The battery device according to any one of claims 1 to 4, characterized in that: The battery (21) is a cylindrical battery, and the heat exchange plate (31) is at least partially located between the curved surfaces of adjacent cylindrical batteries; Alternatively, the battery (21) is a quadrangular prism battery, and the heat exchange plate (31) is at least partially located between the largest side surfaces of adjacent quadrangular prism batteries.

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