Heat exchange structure and battery device

Abstract

The utility model relates to the technical field of batteries, in particular to a heat exchange structure and a battery device.The heat exchange structure comprises a heat exchange plate, a honeycomb plate and a packaging layer, the heat exchange plate is provided with a first surface and a second surface which are opposite, and the first surface is used for being connected with a box body of a battery pack; the second surface is provided with a first protruding part protruding away from the first surface at the position corresponding to a heat exchange flow channel of the heat exchange plate, and the honeycomb plate is arranged on the second surface of the heat exchange plate and connected with the heat exchange plate in a hot-pressing mode. The hot-pressing deformation of the area, corresponding to the first protruding part, of the cellular board is larger than the hot-pressing deformation of other areas. By means of the structural design, due to the fact that the hot-pressing deformation amount of the area, corresponding to the first protruding part, of the honeycomb plate is large, the area can provide better supporting and buffering effects for the heat exchange flow channel of the heat exchange plate through the honeycomb plate, the impact influence resisting capacity of the heat exchange flow channel area of the heat exchange plate is improved, and the heat exchange performance of the battery device is guaranteed.

Description

Technical Field

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

[0002] In the existing design of battery devices, a honeycomb plate is used to provide a buffering effect for the heat exchange plate, and the honeycomb plate and the heat exchange plate are connected by hot pressing. The heat exchange plate has a protrusion protruding toward the honeycomb plate, and the honeycomb plate is cut before being assembled with the heat exchange plate so that its mating surface forms a recessed portion matching the protrusion, which facilitates the honeycomb plate to form a contoured structure relative to the heat exchange plate for assembly. However, the structural design of the above-mentioned honeycomb plate determines that the buffering support effect it can provide in the area corresponding to the protrusion of the heat exchange plate is poor, resulting in the heat exchange flow channel corresponding to the heat exchange plate and the protrusion being easily deformed by impact, affecting the heat exchange performance of the battery device. Utility Model Content

[0003] A main purpose of the utility model is to overcome at least one defect of the above-mentioned prior art and provide a heat exchange structure in which a honeycomb plate can provide effective buffering and supporting effects on the heat exchange flow channel of the heat exchange plate.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] According to one aspect of the utility model, a heat exchange structure is provided, which includes a heat exchange plate, a honeycomb plate and a packaging layer, the heat exchange plate having a first surface and a second surface in opposite directions, the first surface being used to connect to a box of a battery pack, the second surface having a first protrusion protruding away from the first surface at a position corresponding to a heat exchange channel of the heat exchange plate, the honeycomb plate being arranged on the second surface of the heat exchange plate and connected to the heat exchange plate by hot pressing; wherein the hot pressing deformation amount of the area of ​​the honeycomb plate corresponding to the first protrusion is greater than the hot pressing deformation amounts of other areas.

[0006] It can be seen from the above technical solutions that the advantages and positive effects of the heat exchange structure proposed by the utility model are:

[0007] The heat exchange structure proposed in the utility model includes a heat exchange plate, a honeycomb plate and a packaging layer. The heat exchange plate has a first surface and a second surface in opposite directions. The first surface is used to connect to the box of the battery pack. The second surface has a first protrusion protruding away from the first surface at a position corresponding to the heat exchange channel of the heat exchange plate. The honeycomb plate is hot-pressed and connected to the second surface. The thermal compression deformation of the area of ​​the honeycomb plate corresponding to the first protrusion is greater than that of other areas. Through the above structural design, since the thermal compression deformation of the area of ​​the honeycomb plate corresponding to the first protrusion is large, the honeycomb plate can benefit this area to provide better support and buffering effect for the heat exchange channel of the heat exchange plate, enhance the ability of the heat exchange channel area of ​​the heat exchange plate to resist impact, and help to ensure the heat exchange performance of the battery device.

[0008] Another main purpose of the present invention is to overcome at least one defect of the above-mentioned prior art and provide a battery device using the above-mentioned heat exchange structure.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] According to one aspect of the utility model, a battery device is provided, which includes a box, a battery and the heat exchange structure proposed in the utility model, wherein the battery is arranged in the box, and the heat exchange structure is arranged in the box and is used to exchange heat with the battery.

[0011] It can be seen from the above technical solutions that the advantages and positive effects of the battery device proposed by the utility model are:

[0012] The battery device proposed in the utility model can improve the ability of the heat exchange flow channel area of ​​the heat exchange plate to resist impact by adopting the heat exchange structure proposed in the utility model, which is beneficial to ensuring the heat exchange performance of the battery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0014] Figure 1 is a schematic diagram of a three-dimensional structure of a heat exchange structure according to an exemplary embodiment;

[0015] Figure 2 yes Figure 1 The heat exchange structure shown is a three-dimensional exploded schematic diagram at one viewing angle;

[0016] Figure 3 yes Figure 1 A three-dimensional exploded schematic diagram of the heat exchange structure shown in another viewing angle;

[0017] Figure 4 yes Figure 1 A partial cross-sectional view of the heat exchange structure shown;

[0018] Figure 5 is a schematic diagram of a three-dimensional structure of a battery device according to an exemplary embodiment;

[0019] Figure 6 yes Figure 5 A three-dimensional exploded schematic diagram of a battery device is shown;

[0020] Figure 7 yes Figure 5 A partial cross-sectional view of a battery device is shown.

[0021] The following are the descriptions of the reference numerals:

[0022] 100. Heat exchange structure;

[0023] 110. Channel plate;

[0024] 1101. Channel;

[0025] 111. A first protrusion;

[0026] 120. Contact plate;

[0027] 130. Honeycomb panels;

[0028] 140. Encapsulation layer;

[0029] 200. Box;

[0030] 300. Guard plate;

[0031] 310. Plane part;

[0032] 320. second raised portion;

[0033] X. First direction. DETAILED DESCRIPTION

[0034] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present invention.

[0035] In the following description of different exemplary embodiments of the utility model, reference is made to the accompanying drawings, which form a part of the utility model and in which different exemplary structures, systems and steps that can implement multiple aspects of the utility model are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the utility model. Moreover, although the terms "above", "between", "within", etc. can be used in this specification to describe different exemplary features and elements of the utility model, these terms are used herein only for convenience, such as according to the direction of the examples described in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the utility model.

[0036] The heat exchange structure proposed in the present invention is described by taking the application to vehicle-mounted batteries as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present invention to other types of battery devices, various modifications, additions, substitutions, deletions or other changes are made to the specific implementations described below, and these changes are still within the scope of the principle of the heat exchange structure proposed in the present invention.

[0037] See also Figures 1 to 4 , Figure 1 A three-dimensional structural schematic diagram of a heat exchange structure 100 that can embody the principle of the utility model is representatively shown in FIG. Figure 2 , a three-dimensional exploded schematic diagram of the heat exchange structure 100 in a viewing angle (eg, a top view) is representatively shown; Figure 3 , a three-dimensional exploded schematic diagram of the heat exchange structure 100 in another viewing angle (eg, a bottom viewing angle) is representatively shown; Figure 4 A partial cross-sectional view of the heat exchange structure 100 is representatively shown in FIG. 1 and FIG. 2 are combined with the above drawings to describe in detail the structure, connection mode and functional relationship of each main component of the heat exchange structure 100 proposed by the present invention.

[0038] like Figures 1 to 4As shown, in one embodiment of the present invention, the heat exchange structure 100 proposed by the present invention includes a heat exchange plate, a honeycomb plate 130 and an encapsulation layer 140. Specifically, the heat exchange plate has a first surface and a second surface opposite to each other, the first surface is used to connect to the box 200 of the battery pack, and the second surface has a first protrusion 111 protruding away from the first surface at a position corresponding to the heat exchange flow channel of the heat exchange plate. The honeycomb plate 130 is arranged on the second surface of the heat exchange plate and is connected to the heat exchange plate by hot pressing. On this basis, the thermal compression deformation amount of the area of ​​the honeycomb plate 130 corresponding to the first protrusion 111 is greater than the thermal compression deformation amount of other areas. Through the above structural design, since the thermal compression deformation amount of the area of ​​the honeycomb plate 130 corresponding to the first protrusion 111 is large, the honeycomb plate 130 can benefit this area to provide better support and buffering effect for the heat exchange flow channel of the heat exchange plate, improve the ability of the heat exchange flow channel area of ​​the heat exchange plate to resist impact, and help to ensure the heat exchange performance of the battery device.

[0039] Specifically, compared with the existing solution that "the honeycomb plate 130 will be cut before being assembled with the heat exchange plate to form a concave portion matching the protrusion on its mating surface, so that the honeycomb plate 130 can be assembled with a conformal structure relative to the heat exchange plate", the honeycomb plate 130 of the utility model does not need to be cut with the first protrusion 111 before assembly, that is, when the honeycomb plate 130 is connected with the heat exchange plate by hot pressing, the surface of the honeycomb plate 130 facing the heat exchange plate can be a plane, and the plane is heated and pressed during the hot pressing process to deform, thereby forming a shape matching the concave and convex shape of the second surface. For the honeycomb plate 130 after hot pressing, the compression deformation amplitude of the area corresponding to the first protrusion 111 is larger than that of other areas, and the support and buffering capacity of the area formed by pre-cutting in the existing solution will not be significantly reduced compared with other areas, and the first protrusion 111 of the heat exchange plate, that is, the heat exchange flow channel corresponding to the first protrusion 111 inside the heat exchange plate can be guaranteed to support and buffer.

[0040] Furthermore, when the heat exchange plate and the honeycomb plate 130 in the existing solution are hot-pressed and composited, the honeycomb plate 130 is composited in a conformal manner, that is, the honeycomb plate 130 will first perform the above-mentioned cutting action to produce a depression that matches the shape of the flow channel area of ​​the heat exchange plate. In contrast, in the heat exchange structure 100 proposed in the utility model, the honeycomb plate 130 is designed as a flat plate structure, that is, at least one side of the surface of the honeycomb plate 130 facing the heat exchange plate is a plane, and when the honeycomb plate 130 of such a structure is hot-pressed and connected to the heat exchange plate, the hot pressing efficiency can be improved. In addition, when the honeycomb plate 130 is made of plastic material, this type of material will not melt and deform during the hot pressing process and accumulate at the position corresponding to the heat exchange flow channel (i.e., the first protrusion 111), thereby achieving the effect of strengthening the structural strength of the heat exchange flow channel of the heat exchange plate.

[0041] It should be noted that the heat exchange plate shown in the accompanying drawings is only a partial structure thereof. For example, the heat exchange plate may include two relatively combined plates, such as a channel plate 110 and a contact plate 120. The contact plate 120 is in direct or indirect contact with the battery to achieve heat transfer. A channel 1101 is provided on the surface of the channel plate 110 facing the contact plate 120. The channel 1101 and the contact plate 120 together form a heat exchange flow channel of the heat exchange plate. The contact plate 120 may be, for example but not limited to, a flat plate. The contact plate 120 may also have other channels for forming a heat exchange flow channel, or may have other concave-convex structures.

[0042] In one embodiment of the present invention, the rebound deformation amplitude of the area of ​​the honeycomb panel 130 corresponding to the first protrusion 111 may be greater than the rebound deformation amplitude of other areas. For example, the heat exchange structure 100 in the battery device product may be disassembled so that the honeycomb panel 130 is separated from the heat exchange plate, and then the rebound deformation amplitude of each area on the surface of the honeycomb panel 130 facing the heat exchange plate is observed after the honeycomb panel 130 is separated from the heat exchange plate. Accordingly, since the thermal compression deformation of the area of ​​the honeycomb panel 130 corresponding to the first protrusion 111 is greater than the thermal compression deformation of other areas, after disassembly and separation, it can be observed that the rebound deformation amplitude of the area on the side surface of the honeycomb panel 130 corresponding to the first protrusion 111 is greater than the rebound deformation amplitude of other areas. Of course, it should be understood that due to the influence of various factors such as process and material aging caused by long-term use, in some disassembly verification situations, the difference in the above-mentioned rebound deformation amplitude may not be obviously observed in some battery device products, but it does not affect the design concept adopted by the present invention that "the thermal compression deformation of the area of ​​the honeycomb panel 130 corresponding to the first protrusion 111 is greater than the thermal compression deformation of other areas".

[0043] In one embodiment of the present invention, at least a portion of the honeycomb hole wall of the honeycomb plate 130 corresponding to the first protrusion 111 is formed with a pressure-bearing inclined portion, and the pressure-bearing inclined portion has an angle with the second surface that is not 0, 90°, or 180°. In particular, since the honeycomb plate 130 has a plurality of honeycomb holes, and the axis of the honeycomb hole (i.e., the honeycomb hole wall) is perpendicular to the plane where the second surface is located, during the hot pressing process between the honeycomb plate 130 and the heat exchange plate, the honeycomb hole wall of the portion of the honeycomb plate 130 corresponding to the first protrusion 111 is pressed by the first protrusion 111 of the heat exchange plate, and the portion of the honeycomb hole wall of the honeycomb plate 130 corresponding to the first protrusion 111 will be inclined, folded, or collapsed, thereby forming a portion of the hole wall that is not perpendicular to the second surface. In addition, the pressure-bearing inclined portion or similar structure can disassemble the heat exchange structure 100 in the battery device product for observation, for example, the honeycomb plate 130 is separated from the heat exchange plate to observe the structure of the honeycomb hole wall of the disassembled honeycomb plate 130 corresponding to the first protrusion 111. Of course, it should be understood that, affected by various factors such as the shape of the first protrusion 111 and aging of the material due to long-term use, in some disassembly verification situations, the compressed inclined portion or similar structure of the above-mentioned part of the honeycomb hole wall may not be obviously observed in some battery device products, but it does not affect the design concept adopted by the present invention that "the thermal compression deformation of the area of ​​the honeycomb panel 130 corresponding to the first protrusion 111 is greater than the thermal compression deformation of other areas".

[0044] In one embodiment of the present invention, a hot melt adhesive layer may be provided between the heat exchange plate and the honeycomb plate 130. Through the above structural design, the present invention can further enhance the hot pressing connection strength between the honeycomb plate 130 and the heat exchange plate.

[0045] In one embodiment of the present invention, the heat exchange structure 100 further includes a heat preservation layer, which is disposed on the surface of the honeycomb panel 130 facing away from the heat exchange plate. Through the above structural design, the present invention can make the heat exchange structure 100 have a certain heat preservation function, thereby preventing the battery heat from being lost too quickly under some special working conditions (such as cold environment), which is beneficial to improving the thermal performance of the battery device.

[0046] In one embodiment of the present invention, the pore size of the honeycomb holes of the honeycomb panel 130 may be 3 mm to 15 mm, such as 3 mm, 5 mm, 8 mm, 9 mm, 10 mm, 12 mm, 15 mm, etc. Further, the pore size of the honeycomb holes of the honeycomb panel 130 may preferably be 8.2 mm to 8.6 mm, such as 8.2 mm, 8.3 mm, 8.4 mm, 8.5 mm, 8.6 mm, etc. In some embodiments, the pore size of the honeycomb holes of the honeycomb panel 130 may also be less than 3 mm, or may be greater than 15 mm, such as 2.95 mm, 15.1 mm, etc., and is not limited to this embodiment.

[0047] In one embodiment of the present invention, the wall thickness of the honeycomb cell wall of the honeycomb plate 130 may be 0.1 mm to 5 mm, such as 0.1 mm, 0.2 mm, 0.25 mm, 0.35 mm, 0.5 mm, 1 mm, 2 mm, 5 mm, etc. Further, the wall thickness of the honeycomb cell wall of the honeycomb plate 130 may preferably be 0.3 mm to 0.33 mm, such as 0.3 mm, 0.31 mm, 0.32 mm, 0.33 mm, etc. In some embodiments, the wall thickness of the honeycomb cell wall of the honeycomb plate 130 may also be less than 0.1 mm, or may be greater than 5 mm, such as 0.095 mm, 5.01 mm, etc., and is not limited to this embodiment.

[0048] It should be noted that the heat exchange structures 100 shown in the drawings and described in this specification are only a few examples of the many types of heat exchange structures 100 that can adopt the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any details or any components of the heat exchange structures 100 shown in the drawings or described in this specification.

[0049] It should be noted that the heat exchange structure 100 proposed in the utility model, the hot pressing connection between the honeycomb panel 130 and the heat exchange panel can include at least the following two groups of process methods: the first is to apply a hot melt adhesive film on the honeycomb panel 130, and then hot press the honeycomb panel 130 and the channel panel 110, and the hot melt adhesive film bonds the honeycomb panel 130 and the channel panel 110 together during the hot pressing process. The second is to first hot press the honeycomb panel 130 and the channel panel 110, thereby forming a depression matching the first protrusion 111 on the side surface of the honeycomb panel 130 facing the channel panel 110, and then separate the honeycomb panel 130 and the channel panel 110, and then apply glue on the honeycomb panel 130 and bond the honeycomb panel 130 and the channel panel 110 together.

[0050] In summary, the heat exchange structure 100 proposed in the utility model includes a heat exchange plate, a honeycomb plate 130 and a packaging layer 140. The heat exchange plate has a first surface and a second surface in opposite directions. The first surface is used to connect to the box 200 of the battery pack. The second surface has a first protrusion 111 protruding away from the first surface at a position corresponding to the heat exchange channel of the heat exchange plate. The honeycomb plate 130 is hot-pressed and connected to the second surface. The thermal compression deformation of the area of ​​the honeycomb plate 130 corresponding to the first protrusion 111 is greater than that of other areas. Through the above structural design, since the thermal compression deformation of the area of ​​the honeycomb plate 130 corresponding to the first protrusion 111 is large, the honeycomb plate 130 can benefit this area to provide better support and buffering effect for the heat exchange channel of the heat exchange plate, enhance the ability of the heat exchange channel area of ​​the heat exchange plate to resist impact, and help to ensure the heat exchange performance of the battery device.

[0051] Based on the above detailed description of several exemplary embodiments of the heat exchange structure 100 proposed in the present invention, an exemplary embodiment of the battery device proposed in the present invention will be described below.

[0052] See also Figures 5 to 7 , Figure 5 A three-dimensional structural schematic diagram of a battery device that can embody the principle of the utility model is representatively shown in FIG. Figure 6 , a three-dimensional exploded schematic diagram of a battery device is representatively shown, wherein the packaging layer 140 is separated from the heat exchange structure 100 in a bottom-up perspective; Figure 7 A partial cross-sectional view of a battery device is representatively shown in FIG. The battery device proposed in the present invention is described by taking a vehicle-mounted battery as an example. It is easy for a person skilled in the art to understand that in order to apply the relevant design of the present invention to other types of battery devices, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the battery device proposed in the present invention.

[0053] like Figures 5 to 7 As shown, in one embodiment of the present invention, the battery device proposed by the present invention includes a box 200, a battery, and a heat exchange structure 100 proposed by the present invention and described in detail in the above embodiment. The battery is arranged in the box 200, and the heat exchange structure 100 is arranged in the box 200 and is used to exchange heat with the battery.

[0054] like Figure 5 and Figure 6 As shown, in one embodiment of the present invention, the battery device provided by the present invention may further include a protective plate 300, which is disposed on a surface of the honeycomb panel 130 facing away from the heat exchange plate, and the protective plate 300 is adhesively connected to the honeycomb panel 130. Through the above structural design, the present invention can use the protective plate 300 to provide protection for the heat exchange structure 100 of the battery device, avoid damage to the heat exchange structure 100 caused by external impact, and ensure the heat exchange performance of the battery device.

[0055] like Figures 5 to 7As shown, based on the structural design that the battery device also includes a guard plate 300, in one embodiment of the present utility model, the guard plate 300 may have a plane portion 310 and a second protrusion 320 protruding away from the honeycomb panel 130, and accordingly, the guard plate 300 is connected to the honeycomb panel 130 by gluing the plane portion 310. On this basis, taking the plane where the second surface is located as the reference plane, on this reference plane, the ratio of the orthogonal projection area of ​​the plane portion 310 to the orthogonal projection area of ​​the guard plate 300 may be 0.2 to 0.8, such as 0.2, 0.3, 0.5, 0.7, 0.8, etc. It should be noted that the orthogonal projection area of ​​the above-mentioned plane portion 310 refers to the sum of the orthogonal projection areas of all the plane portions 310 provided on the guard plate 300, and the orthogonal projection area of ​​the above-mentioned guard plate 300 can be understood as the sum of the orthogonal projection area of ​​the second protrusion 320 and the orthogonal projection area of ​​the plane portion 310 (of course, it can also include the area of ​​the edge of the guard plate 300 for direct contact with the channel plate 110). Through the above structural design, the utility model can prevent the plane part 310 from being too large (equivalent to the second protrusion 320 being too small), thereby preventing the guard plate 300 from tending to a straight flat plate, and facilitating the bubbles to be discharged through the gap between the second protrusion 320 and the honeycomb panel 130 when the guard plate 300 is glued to the honeycomb panel 130, that is, the gap between the second protrusion 320 and the honeycomb panel 130 can be used as a space and channel for the bubbles to be discharged. Of course, the utility model can prevent the plane part 310 from being too small, thereby preventing the guard plate 300 and the honeycomb panel 130 from having insufficient bonding area, thereby ensuring the bonding strength between the guard plate 300 and the honeycomb panel 130.

[0056] Based on the structural design that the guard plate 300 has a plane portion 310 and a second protrusion 320, in one embodiment of the present utility model, the guard plate 300 may have at least two second protrusions 320, and at least two second protrusions 320 are arranged at intervals. Among them, the minimum spacing between any two adjacent second protrusions 320 can be 15mm to 20mm, such as 15mm, 16mm, 18mm, 20mm, etc. It should be noted that the so-called minimum spacing means that two adjacent second protrusions 320 may have a spacing area with a certain length, in which the two opposite sides of the two second protrusions 320 may not be parallel, and the spacing between the two may be unequal, so there will be a minimum spacing, and the above minimum spacing is the spacing at the minimum spacing. Through the above structural design, the utility model can avoid the two adjacent second protrusions 320 from being too close, thereby ensuring that there is a plane portion 310 with a sufficient area between the two adjacent second protrusions 320 to fit the honeycomb panel 130.

[0057] It should be noted that the battery devices shown in the drawings and described in this specification are only a few examples of many battery devices that can adopt the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any details or any components of the battery devices shown in the drawings or described in this specification.

[0058] In summary, the battery device proposed in the present invention can enhance the ability of the heat exchange flow channel area of ​​the heat exchange plate to resist impact by adopting the heat exchange structure 100 proposed in the present invention, which is beneficial to ensure the heat exchange performance of the battery device.

[0059] The above describes and / or illustrates in detail the exemplary embodiments of the heat exchange structure and battery device proposed by the utility model. However, the embodiments of the utility model are not limited to the specific embodiments described here. On the contrary, the components and / or steps of each embodiment can be used independently and separately from other components and / or steps described here. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated here, the terms "one", "one" and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open inclusion and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0060] Although the heat exchange structure and battery device proposed in the present invention have been described according to different specific embodiments, those skilled in the art will recognize that modifications may be made to the implementation of the present invention within the spirit and scope of the claims.

Claims

1. A heat exchange structure, characterized in that: It includes a heat exchange plate, a honeycomb plate and a packaging layer, the heat exchange plate has a first surface and a second surface opposite to each other, the first surface is used to connect to the box of the battery pack, the second surface has a first protrusion protruding away from the first surface at a position corresponding to the heat exchange flow channel of the heat exchange plate, the honeycomb plate is arranged on the second surface of the heat exchange plate and is hot-pressed connected to the heat exchange plate; wherein the hot-pressing deformation amount of the honeycomb plate corresponding to the first protrusion area is greater than the hot-pressing deformation amount of other areas.

2. The heat exchange structure according to claim 1, characterized in that: The rebound deformation amplitude of the area of ​​the honeycomb panel corresponding to the first protrusion is greater than the rebound deformation amplitude of other areas; and / or At least a portion of the honeycomb hole wall of the honeycomb panel corresponding to the first protrusion is formed with a compressed inclined portion, and an angle between the compressed inclined portion and the second surface is not 0, 90°, or 180°.

3. The heat exchange structure according to claim 1, characterized in that: A hot melt adhesive layer is provided between the heat exchange plate and the honeycomb plate.

4. The heat exchange structure according to claim 1, characterized in that: The heat exchange structure further comprises a heat-insulating layer, and the heat-insulating layer is arranged on a surface of the honeycomb plate on one side facing away from the heat exchange plate.

5. The heat exchange structure according to claim 1, characterized in that: The diameter of the honeycomb holes of the honeycomb panel is 3 mm to 15 mm; and / or The thickness of the honeycomb hole wall of the honeycomb plate is 0.1 mm to 5 mm.

6. A battery device, characterized in that: The invention comprises a box, a battery and the heat exchange structure according to any one of claims 1 to 5, wherein the battery is arranged in the box, and the heat exchange structure is arranged in the box and is used for exchanging heat with the battery.

7. The battery device according to claim 6, characterized in that: The battery device further comprises a guard plate, which is arranged on a surface of the honeycomb plate facing away from the heat exchange plate and is adhesively connected to the honeycomb plate.

8. The battery device according to claim 7, characterized in that: The guard plate has a plane portion and a second protruding portion protruding away from the honeycomb panel, and the guard plate is glued to the honeycomb panel by the plane portion; wherein, taking the plane where the second surface is located as a reference plane, on the reference plane, the ratio of the orthographic projection area of ​​the plane portion to the orthographic projection area of ​​the guard plate is 0.2 to 0.

8.

9. The battery device according to claim 8, characterized in that: The guard plate has at least two second protrusions, and the at least two second protrusions are arranged at intervals, and the minimum distance between any two adjacent second protrusions is 15 mm to 20 mm.

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