Heat exchange plate, battery and electric device

Abstract

The utility model relates to a heat exchange plate, a battery and an electric device, the heat exchange plate comprises a heat exchange surface and a glue blocking structure, and the glue blocking structure is arranged on the heat exchange surface. The glue blocking structure comprises a plurality of glue blocking parts, all the glue blocking parts are divided on the heat exchange face to form a plurality of gluing areas arranged side by side, and each glue blocking part can block glue from flowing between the two gluing areas adjacent to the glue blocking part. Wherein each glue blocking part comprises a bendable section, and the bendable section of each glue blocking part is configured to be capable of bending and deforming towards the gluing area on the same side of each glue blocking part under the extrusion of external force. According to the technical scheme, the glue blocking structure is arranged on the heat exchange surface, so that the glue thickness distribution of each gluing area of the heat exchange surface is relatively uniform, the heat exchange surface can be well bonded with each part of the battery cell, and the heat exchange between the battery cell and each part of the heat exchange surface is good; and the problem of poor heat exchange effect between the battery cell and the heat exchange plate caused by non-uniform distribution of glue flowing can be greatly improved.

Description

Technical Field

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

[0002] When the battery is under fast charge and discharge conditions, a violent electrochemical reaction will occur and generate a large amount of heat, causing the temperature of the battery cell inside the battery to rise sharply. Excessive temperature will lead to a decrease in the cycle life and safety of the battery cell. In some technologies, a heat exchange plate for dissipating heat from the battery cell is provided on the side of the battery cell, and the heat exchange plate is bonded to the battery cell by applying glue on the heat exchange plate. However, after the glue is applied to the heat exchange plate, it is easy for the glue to flow downward along the heat exchange plate under the action of gravity, and the thickness distribution is uneven up and down (called sagging phenomenon), resulting in a gap between the heat exchange plate and the battery cell after bonding, resulting in poor heat exchange between the heat exchange plate and the battery cell. Utility Model Content

[0003] Based on this, it is necessary to provide a heat exchange plate, a battery and an electrical device to address the problem that the heat exchange between the heat exchange plate and the battery cell is easily unevenly distributed due to the thickness of the glue, resulting in poor heat exchange between the heat exchange plate and the battery cell.

[0004] In a first aspect, an embodiment of the present application provides a heat exchange plate, comprising:

[0005] Heat exchange surface;

[0006] A glue blocking structure is provided on the heat exchange surface; the glue blocking structure comprises a plurality of glue blocking parts, all of which are separated on the heat exchange surface to form a plurality of glue coating areas arranged side by side, and each of the glue blocking parts can prevent glue from flowing between two of the glue coating areas adjacent to itself;

[0007] Wherein, each of the glue blocking portions comprises a bendable section, and the bendable section of each of the glue blocking portions is configured to be able to bend and deform toward the glue coating area located on the same side of each of the glue blocking portions when squeezed by an external force.

[0008] In some embodiments, the bendable section of each of the glue blocking portions is arranged to be inclined relative to the heat exchange surface toward the glue coating area located on the same side of each of the glue blocking portions.

[0009] In some embodiments, the angle between the bendable section of each of the rubber-blocking portions and the heat exchange surface is α, which satisfies: 30°≤α≤70°.

[0010] In some embodiments, the length of each of the glue-coated areas in the parallel direction of the glue-coated areas is L1;

[0011] The bendable length of the bendable section of each of the glue blocking portions is L2, and the relationship between each of the glue blocking portions and the glue coating area located on the bending side of the glue blocking portion satisfies: L1 / L2≥2.

[0012] In some embodiments, along the parallel direction of the glue coating area, all the glue blocking portions are divided into a plurality of glue blocking groups arranged sequentially;

[0013] Each of the rubber blocking groups comprises at least one rubber blocking portion, and the bendable lengths of the bendable sections of the rubber blocking portions of the same rubber blocking group are the same and are the bendable lengths of the rubber blocking group;

[0014] The bendable length of each group of the rubber blocking groups is gradually changed along the parallel direction.

[0015] In some embodiments, each of the glue blocking portions extends in the same direction in a direction intersecting the parallel direction of the glue coating area in a strip shape.

[0016] In some embodiments, the glue blocking structure further includes a connecting portion, which is disposed on the heat exchange surface and connects all of the glue blocking portions;

[0017] The connecting portion encloses a total glue coating area on the heat exchange surface, and each of the glue blocking portions is at least partially located in the total glue coating area, and the total glue coating area is divided into the plurality of glue coating areas.

[0018] In some embodiments, the adhesive blocking structure is bonded to the heat exchange surface.

[0019] In some embodiments, the heat exchange surface is arranged vertically.

[0020] In a second aspect, an embodiment of the present application provides a battery, comprising:

[0021] Battery cells; and

[0022] As for the heat exchange plate described in the above embodiment, the heat exchange surface of the heat exchange plate is bonded to the battery cell via the thermally conductive adhesive portion located in the adhesive coating area, and the bendable section of the adhesive blocking portion is bent and arranged between the heat exchange surface and the battery cell.

[0023] In a third aspect, an embodiment of the present application provides an electrical device, comprising the battery described in the above embodiment, wherein the battery is used to provide electrical energy.

[0024] The heat exchange plate, battery and electrical device are provided with a glue blocking structure on their heat exchange surface, and the glue blocking structure divides the heat exchange surface into multiple glue coating areas, and the glue blocking part can prevent the glue from flowing between the glue coating areas, so that the glue content in the glue coating areas is relatively uniform. Moreover, the bendable sections of each glue blocking part can bend and deform toward the glue coating area on the same side under external force, and spread the glue accumulated at the glue blocking part during the bending process to fill the area with thinner glue thickness in the glue coating area, so that the glue thickness distribution in the glue coating area is relatively uniform.

[0025] In this way, when the heat exchange plate is connected to the battery cell, since the glue thickness in each glue-coated area of ​​the heat exchange surface is more evenly distributed, the heat exchange surface and the battery cell can be well bonded at all locations, and the heat exchange between the battery cell and the heat exchange surface is good at all locations, which can greatly improve the problem of poor heat exchange between the battery cell and the heat exchange plate caused by uneven distribution of glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0027] Figure 1 Schematic diagram of the structure of the heat exchange plate in some embodiments.

[0028] Figure 2 for Figure 1 A side view of the heat exchange plate is shown.

[0029] Figure 3 Schematic diagram of the installation process of the heat exchange plate and the battery cell in some embodiments.

[0030] Figure 4 for Figure 1 A schematic structural diagram of the glue blocking structure in the heat exchange plate is shown.

[0031] Figure 5 for Figure 3 A side view of the glue blocking structure is shown.

[0032] Figure 6 It is a schematic diagram of the partial structure of the heat exchange plate in some embodiments.

[0033] The reference numerals in the specific implementation manner are as follows:

[0034] 10. heat exchange plate; 11. heat exchange surface; 11a. glue coating area; 12. glue blocking structure; 12a. glue blocking part; a1. bendable section; a2. root; 12A. glue blocking group; 12b. connecting part; 13. heat exchange flow channel; X, side-by-side direction; 20. battery cell. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that terms such as “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships, if any, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, if present, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, if any, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the present application, if it appears, unless otherwise clearly specified and limited, a first feature “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature “above”, “above” and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature “below”, “below” and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that, if present, when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] The present application aims to solve the problem that uneven glue thickness distribution may cause poor heat exchange between the heat exchange plate and the battery cell during heat exchange between the heat exchange plate and the battery cell, and provides a heat exchange plate, a battery and an electrical device.

[0042] The battery involved in the embodiment of the present application includes a battery cell and a heat exchange plate, and the heat exchange plate is bonded to the battery cell. The battery cell can be a square shell battery cell, a cylindrical battery cell, etc. The battery usually includes multiple battery cells, and the heat exchange plate can be arranged at the bottom of the multiple battery cells and bonded to the multiple battery cells. The heat exchange plate can also be arranged between adjacent battery cells and bonded to the side of the battery cell.

[0043] A battery cell, also known as a battery cell, is the smallest unit for electrochemical reactions in a battery. In some examples, the battery cell includes a shell, and an electrode assembly and an electrolyte contained in the shell. The shell can be an aluminum shell, a steel shell, etc., and the specific material is not limited. The electrode assembly includes a positive electrode sheet, a negative electrode sheet, and an insulator insulating and isolating between the positive electrode sheet and the negative electrode sheet. The insulator can be an isolation membrane that allows ions to pass through. The electrode assembly can be a laminated structure or a wound structure. In some examples, an injection hole is provided on the shell for injecting electrolyte into the shell. Typically, a pole is also provided on the shell, and the pole is electrically connected to the electrode assembly to connect the electrode assembly to an external circuit.

[0044] The electric device mentioned in the embodiments of the present application is equipped with a battery for providing electric energy. The electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, etc. Taking the electric device as a vehicle as an example, the battery may be arranged at the rear, head or bottom of the vehicle, and the battery may provide electric energy for the drive of the vehicle, or may provide electric energy for the control system of the vehicle.

[0045] The heat exchange plate in the embodiment of the present application is described in detail below.

[0046] According to some embodiments of the present application, referring to Figure 1 and Figure 2The heat exchange plate 10 provided in the embodiment of the present application includes a heat exchange surface 11 and a glue blocking structure 12, and the glue blocking structure 12 is arranged on the heat exchange surface 11. The glue blocking structure 12 includes a plurality of glue blocking parts 12a, and all the glue blocking parts 12a are separated on the heat exchange surface 11 to form a plurality of glue coating areas 11a arranged side by side, and each glue blocking part 12a can prevent the glue from flowing between two glue coating areas 11a adjacent to itself. Among them, each glue blocking part 12a includes a bendable section a1, and the bendable section a1 of each glue blocking part 12a is configured to be able to bend and deform toward the glue coating area 11a located on the same side of each glue blocking part 12a under external force.

[0047] The heat exchange plate 10 is generally a flat plate structure, in which a heat exchange channel 13 is provided. The heat exchange channel 13 is used to circulate a heat exchange medium, and the heat exchange medium can exchange heat with the battery cell 20 through the heat exchange plate 10. In one example, Figure 1 As shown, a plurality of heat exchange channels 13 parallel to each other are disposed in the heat exchange plate 10. In other embodiments, the heat exchange channels 13 may be disposed in the heat exchange plate 10 in a curved shape and extend therein.

[0048] The heat exchange surface 11 is the outer surface of the heat exchange plate 10, and the heat exchange surface 11 is used for heat exchange between the heat exchange plate 10 and the battery cell 20. One side surface of the heat exchange plate 10 in the thickness direction is the heat exchange surface 11, or both sides of the surface are the heat exchange surface 11. Usually, the heat exchange surface 11 is a plane. When both sides of the heat exchange plate 10 are the heat exchange surface 11, a rubber blocking structure 12 is provided on at least one of the heat exchange surfaces 11.

[0049] In actual application, the heat exchange surface 11 is glued to the battery cell 20, and glue with heat conduction function is coated on the heat exchange surface 11. The heat exchange surface 11 can be arranged vertically or horizontally, depending on the specific heat exchange scenario. Specifically, the multiple glue blocking parts 12a of the glue blocking structure 12 divide the heat exchange surface 11 into multiple glue coating areas 11a, and the multiple glue coating areas 11a are arranged side by side. Glue is coated in each glue coating area 11a.

[0050] A glue blocking portion 12a is provided between each two adjacent glue coating areas 11a, that is, the glue blocking portion 12a separates the glue coating areas 11a. The glue blocking portion 12a can prevent the glue from flowing between the two adjacent glue coating areas 11a. When the heat exchange surface 11 is arranged vertically, the glue blocking portion 12a can prevent the glue in the upper glue coating area 11a from flowing to the lower glue coating area 11a under the action of gravity, so that the glue coated on each glue coating area 11a can basically be retained in each glue coating area 11a.

[0051] The rubber blocking portion 12a has a bendable section a1 that can be bent and deformed. Generally, the bendable section a1 is an extension section of the rubber blocking portion 12a that freely extends away from the heat exchange surface 11. Specifically, refer to Figure 6The adhesive blocking portion 12a includes a root portion a2 (to separate the adhesive coating areas 11a) that is in contact with the heat exchange surface 11, and the root portion a2 is connected to the bendable section a1. The bendable section a1 can be bent and deformed relative to the root portion a2.

[0052] Specifically, the entire rubber-blocking portion 12a is a deformable structure made of a flexible material. For example, the rubber-blocking portion 12a is a flexible member such as rubber, silicone, or soft plastic, and the bendable section a1 of the rubber-blocking portion 12a is a flexible material section.

[0053] Specifically, the bendable section a1 of the rubber-blocking portion 12a is a rigid material section, and the bendable deformation of the bendable section a1 is achieved through structural design. For example, a thinning section is provided at the connection between the bendable section a1 and the root a2 of the rubber-blocking portion 12a, and when an external force squeezes the rubber-blocking portion 12a, the bendable section a1 can bend and deform relative to the root a2 with the support of the thinning section. For another example, a rotating shaft is provided between the bendable section a1 and the root a2, and when an external force squeezes the rubber-blocking portion 12a, the bendable section a1 can rotate along its rotating shaft to bend and deform relative to a2.

[0054] The bendable section a1 of each glue blocking portion 12a can be bent and deformed toward the glue coating area 11a located on the same side and adjacent to the glue blocking portion 12a. During the folding process, each glue blocking portion 12a can spread the glue accumulated at the glue blocking portion 12a to fill the area of ​​the glue coating area 11a where the glue thickness is relatively thin, so that the glue distribution thickness in the glue coating area 11a is more uniform.

[0055] In a practical application, refer to Figure 3 , the heat exchange surface 11 of the heat exchange plate 10 is arranged vertically. When assembling the battery, firstly, the heat exchange surface 11 of the heat exchange plate 10 on one side without the glue blocking structure 12 is bonded to one of the battery cells 20, and then glue is applied to each glue coating area 11a on the heat exchange surface 11 of the other side with the glue blocking structure 12, and then the heat exchange surface 11 of the heat exchange plate 10 is bonded to the battery cell 20. Figure 3 Another battery cell 20 is pressed against the side of the heat exchange plate 10 having the glue blocking structure 12 in the direction indicated by the middle arrow.

[0056] Under the extrusion of the battery cell 20, it can be understood that the bendable sections a1 of each glue blocking portion 12a are all bent toward the upper glue coating area 11a. In this process, the glue accumulated at the glue blocking portion 12a can be spread upward to fill the area where the glue thickness is thinner in the glue coating area 11a, so that the thickness distribution of the glue in the glue coating area 11a is more uniform, and the battery cell 20 and the heat exchange plate 10 can be well bonded at all locations.

[0057] The heat exchange plate 10 is provided with a glue blocking structure 12 on its heat exchange surface 11, and the glue blocking structure 12 divides the heat exchange surface 11 into a plurality of glue coating areas 11a. The glue blocking portion 12a can block the glue from flowing between the glue coating areas 11a, so that the glue content in the glue coating areas 11a is relatively uniform. Moreover, the bendable section a1 of each glue blocking portion 12a can be bent and deformed toward the glue coating area 11a on the same side under external force extrusion, and the glue accumulated at the glue blocking portion 12a is spread out during the bending process to fill the area of ​​the glue coating area 11a where the glue thickness is relatively thin, so that the glue thickness distribution of the glue coating area 11a is relatively uniform.

[0058] In this way, when the heat exchange plate 10 is connected to the battery cell 20, since the glue thickness of each glue-coated area 11a of the heat exchange surface 11 is relatively evenly distributed, the heat exchange surface 11 and the battery cell 20 can be well bonded at all locations, and the heat exchange between the battery cell 20 and the heat exchange surface 11 is good at all locations, which can greatly improve the problem of poor heat exchange effect between the battery cell 20 and the heat exchange plate 10 caused by uneven distribution of glue.

[0059] It is understandable that in actual application, the heat exchange surface 11 of the heat exchange plate 10 can also be arranged horizontally. When the heat exchange surface 11 of the heat exchange plate 10 is arranged horizontally, similar to the above analysis, the setting of the glue blocking structure 12 can also play a role in uniformly balancing the thickness of the glue on the heat exchange surface 11, thereby improving the heat exchange effect between the heat exchange surface 11 and the battery cell 20.

[0060] In some embodiments, reference Figure 1 and Figure 2 The bendable section a1 of each rubber blocking portion 12a is inclined relative to the heat exchange surface 11 toward the rubber coating area 11a located on the same side of each rubber blocking portion 12a.

[0061] Specifically, in actual application, when the heat exchange surface 11 is arranged vertically, the bendable section a1 of each glue blocking portion 12a is arranged upwardly and tilted toward the glue coating area 11a on the upper side. The bendable section a1 tilted upwardly makes the glue blocking portion 12a shaped like a hook structure, and the bendable section a1 intersects with the heat exchange surface 11 to form a certain accumulation space, in which a certain amount of glue can be accumulated, thereby improving the ability of the glue blocking portion 12a to prevent the glue from flowing downward.

[0062] In some embodiments, reference Figure 2 The included angle between the bendable section a1 of each rubber-blocking portion 12a and the heat exchange surface 11 is α, which satisfies: 30°≤α≤70°.

[0063] The angle α refers to the acute angle between the bendable section a1 of the rubber blocking portion 12a and the heat exchange surface 11. Specifically, the angle α can be selected as 30°, 45°, 50°, 60°, 70°, and any value between adjacent values. Preferably, the angles α corresponding to all the rubber blocking portions 12a are equal.

[0064] When the angle α between the bendable section a1 of the glue blocking portion 12a and the heat exchange surface 11 is within the above range, the bendable section a1 of the glue blocking portion 12a can block and support more glue and is also easy to bend and deform under the action of external force.

[0065] In some embodiments, reference Figure 2 , the length of each glue-coated area 11a in the parallel direction X of the glue-coated areas 11a is L1. The bendable length of the bendable section a1 of each glue-blocking portion 12a is L2, and each glue-blocking portion 12a and the glue-coated area 11a located on the bending side of the glue-blocking portion 12a satisfy: L1 / L2≥2.

[0066] When the heat exchange surface 11 is arranged vertically, the parallel direction X of the glue-coated areas 11a is the vertical direction. When the heat exchange surface 11 is arranged horizontally, the parallel direction X of the glue-coated areas 11a is the horizontal direction.

[0067] The length L1 of the glue-coated area 11a refers to the average size of the glue-coated area 11a in the parallel direction X. The bendable length L2 of the bendable section a1 refers to the average size of the bendable section a1 in its extending direction. When the glue-blocking portion 12a is inclined, the bendable length L2 is the average size of the bendable section a1 in the inclined direction of the glue-blocking portion 12a.

[0068] It is understandable that when each glue blocking portion 12a is bent and deformed, its bendable section a1 can be bent to be close to the glue-coated area 11a located on the bent side. In order to avoid the bendable section a1 completely blocking the glue-coated area 11a after bending, the bendable length L2 of the bendable section a1 should be less than the length L1 of the glue-coated area 11a. Moreover, in order to increase the bonding area between the heat exchange surface 11 of the glue-coated area 11a and the battery cell 20, the bendable length L2 of the bendable section a1 is set to be less than half of the length L1 of the glue-coated area 11a, that is, L1 / L2≥2 is satisfied.

[0069] When L1 and L2 meet the above requirements, the area blocked by the bendable section a1 after the glue-coated area 11a is bent will not be too large, so a larger bonding area can be reserved between the glue-coated area 11a and the battery cell 20, ensuring that there is a certain bonding area between the heat exchange surface 11 of the glue-coated area 11a and the battery cell 20, thereby ensuring the bonding effect between the heat exchange surface 11 and the battery cell 20.

[0070] Preferably, the lengths L1 of the glue-coated areas 11a are equal to each other, so that the glue distribution content of each glue-coated area 11a tends to be consistent, so that the bonding effects between each glue-coated area 11a and the battery cell 20 are close to each other, and the heat exchange between the battery cell 20 and the heat exchange surface 11 is more uniform.

[0071] In some embodiments, reference Figure 5, along the parallel direction X of the glue coating area 11a, all the glue blocking parts 12a are divided into a plurality of glue blocking groups 12A arranged in sequence. Each glue blocking group 12A includes at least one glue blocking part 12a, and the bendable length of the bendable section a1 of the glue blocking part 12a of the same glue blocking group 12A is the same and is the bendable length of the glue blocking group 12A. The bendable length of each glue blocking group 12A is gradually set along the parallel direction X.

[0072] exist Figure 5 In the illustrated embodiment, each rubber blocking group 12A includes three rubber blocking portions 12a disposed at intervals, and each rubber blocking portion 12a has the same inclination angle and bendable length.

[0073] The bendable length of each glue blocking portion 12a in the glue blocking device 12A is defined as the bendable length of the glue blocking group 12A. The longer the bendable length of the glue blocking group 12A is, the longer the extension length of the glue blocking portion 12a is, and the stronger the ability of the glue blocking portion 12a to prevent glue from flowing out of the glue coating area 11a is.

[0074] When the heat exchange surface 11 is arranged vertically, the bendable length of each glue blocking group 12A is arranged in increasing order from top to bottom. When the glue flows from top to bottom, the glue hanging on the heat exchange surface 11 is the most. At this time, the closer to the bottom of the heat exchange surface 11, the longer the bendable length of the glue blocking group 12A is, and the greater the resistance of the glue blocking part 12a to hinder the flow of glue, which can effectively slow down the flow of glue to the lower side of the heat exchange plate 10 and improve the uniformity of the glue thickness of each glue coating area 11a.

[0075] In some embodiments, reference Figure 1 and Figure 4 Each glue blocking portion 12a extends in the same direction in a strip shape in a direction intersecting the parallel direction X of the glue coating area 11a.

[0076] Specifically, each rubber blocking portion 12a is in the form of a rubber blocking strip, and the extension direction of the rubber blocking strip may be a direction substantially perpendicular to the parallel direction X. Taking the vertical arrangement of the heat exchange surface 11 as an example, the parallel direction X is the vertical direction, and the rubber blocking strip extends horizontally along the heat exchange surface 11. At this time, adjacent rubber coating areas 11a are separated by a whole strip of rubber blocking portions 12a, and the division of the rubber coating areas 11a is simpler, which can simplify the structure of the heat exchange plate 10.

[0077] Specifically, the strip-shaped adhesive blocking portion 12 a is made of a flexible material, which can simplify the adhesive blocking structure 12 and reduce the processing cost.

[0078] In some embodiments, in combination Figure 1 and Figure 4The glue blocking structure 12 further includes a connecting portion 12b, which is disposed on the heat exchange surface 11 and connects all the glue blocking portions 12a. The connecting portion 12b encloses a glue coating area on the heat exchange surface 11, and each glue blocking portion 12a is at least partially located in the glue coating area, and the glue coating area is divided into a plurality of glue coating areas 11a.

[0079] The connecting portion 12b and the entire adhesive blocking portion 12a may be integrally formed or assembled together. In one example, the connecting portion 12b and the adhesive blocking portion 12a are integrally formed of a flexible material.

[0080] The connecting portion 12b forms a frame structure on the heat exchange surface 11, and the frame structure encloses the total glue coating area. The frame structure can be, but is not limited to, a square structure, a polygonal structure, etc. The glue blocking portion 12a is at least partially located in the frame structure and is attached to the heat exchange surface 11, and the heat exchange surface 11 where the total glue coating area is located is divided into the above-mentioned multiple glue coating areas 11a.

[0081] At this time, the connecting portion 12 b serves to connect all the rubber blocking portions 12 a , and the rubber blocking portions 12 a and the connecting portion 12 b form a whole, which facilitates the arrangement of the rubber blocking structure 12 on the heat exchange plate 10 .

[0082] Specifically, the root a2 mentioned above is fixedly connected to the connecting portion 12b, and the root a2 can be bonded to the heat exchange surface 11. When the adhesive blocking portion 12a is arranged in a strip shape, the root a2 and the bendable section a1 are both arranged in a strip shape.

[0083] In some embodiments, the rubber blocking structure 12 is bonded to the heat exchange surface 11. Specifically, the connecting portion 12b can be bonded to the heat exchange surface 11, and the rubber blocking portion 12a can also be bonded to the heat exchange surface 11. The rubber blocking structure 12 is fixed to the heat exchange surface 11 by bonding, which simplifies processing and is easy to implement. Usually, a heat-conductive adhesive is selected to bond the rubber blocking structure 12 to the heat exchange surface 11.

[0084] Of course, in other embodiments, the glue blocking structure 12 may also be fixed on the heat exchange surface 11 by means of fastening connection or the like.

[0085] In some embodiments, reference Figure 3 , the heat exchange surface 11 is arranged vertically. In practical application, the heat exchange plate 10 can be applied to the scene of heat exchange on the side of the battery cell 20 , and its vertically arranged heat exchange surface 11 exchanges heat with the side of the battery cell 20 .

[0086] The setting of the glue blocking structure 12 can effectively alleviate the sagging phenomenon of the glue bonding the heat exchange surface 11 and the battery cell 20 when the heat exchange surface 11 is set vertically. The glue thickness at various locations of the heat exchange surface 11 is relatively uniform, thereby improving the heat exchange effect of the heat exchange surface 11 and the battery cell 20.

[0087] In a specific embodiment of the present application, refer to Figures 1 to 3 The heat exchange plate 10 has two heat exchange surfaces 11 disposed opposite to each other in the thickness direction thereof, and each heat exchange surface 11 is disposed vertically. A glue blocking structure 12 is disposed on one of the heat exchange surfaces 11, and the glue blocking structure 12 includes a connecting portion 12b and a plurality of horizontally extending glue blocking portions 12a, and a glue coating area 11a is formed between adjacent glue blocking portions 12a. The glue blocking portions 12a block the flow of adjacent glue between adjacent glue coating areas 11a, and the bendable section a1 of each glue blocking portion 12a is disposed obliquely upward and can be bent and deformed toward the upper glue coating area 11a.

[0088] In addition, an embodiment of the present application also provides a battery, including a battery cell 20 and the heat exchange plate 10 in the above embodiment, the heat exchange surface 11 of the heat exchange plate 10 is bonded to the battery cell 20 via the thermally conductive adhesive portion of the adhesive coating area 11a, and the bendable section a1 of the adhesive resistance portion 12a is bent and arranged between the heat exchange surface 11 and the battery cell 20.

[0089] The thermally conductive adhesive portion is an adhesive layer structure obtained by curing the glue applied to the adhesive coating area 11a, which has the effects of heat conduction and bonding. When the battery cell 20 is bonded to the heat exchange surface 11 provided with the adhesive blocking structure 12, the bendable section a1 of the adhesive blocking portion 12a is bent under the extrusion of the battery cell 20 and is located between the battery cell 20 and the heat exchange surface 11. In some embodiments, the heat exchange surface 11 is horizontally arranged, and the heat exchange plate 10 exchanges heat with the bottom of the battery cell 20. In other embodiments, the heat exchange surface 11 is vertically arranged, and the heat exchange plate 10 exchanges heat with the side of the battery cell 20.

[0090] The battery has all the beneficial effects in the above embodiments.

[0091] In addition, an embodiment of the present application also provides an electrical device, including the battery in the above embodiment, and the battery is used to provide electrical energy.

[0092] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A heat exchange plate (10), characterized in that: The heat exchange plate (10) comprises: Heat exchange surface (11); A glue blocking structure (12) is arranged on the heat exchange surface (11); the glue blocking structure (12) comprises a plurality of glue blocking parts (12a), all of the glue blocking parts (12a) are separated on the heat exchange surface (11) to form a plurality of glue coating areas (11a) arranged side by side, and each of the glue blocking parts (12a) can prevent glue from flowing between two of the glue coating areas (11a) adjacent to itself; Each of the glue blocking portions (12a) comprises a bendable section (a1), and the bendable section (a1) of each of the glue blocking portions (12a) is configured to be able to bend and deform toward the glue coating area (11a) located on the same side of each of the glue blocking portions (12a) when squeezed by an external force.

2. The heat exchange plate (10) according to claim 1, characterized in that: The bendable section (a1) of each of the rubber blocking portions (12a) is arranged obliquely relative to the heat exchange surface (11) toward the rubber coating area (11a) located on the same side of each of the rubber blocking portions (12a).

3. The heat exchange plate (10) according to claim 2, characterized in that: The included angle between the bendable section (a1) of each of the rubber blocking portions (12a) and the heat exchange surface (11) is α, satisfying: 30°≤α≤70°.

4. The heat exchange plate (10) according to claim 1, characterized in that: The length of each of the glue-coated areas (11a) in the parallel direction (X) of the glue-coated areas (11a) is L1; The bendable length of the bendable section (a1) of each of the glue blocking portions (12a) is L2, and the relationship between each of the glue blocking portions (12a) and the glue coating area (11a) located on the bending side of the glue blocking portion (12a) satisfies: L1 / L2≥2.

5. The heat exchange plate (10) according to claim 1, characterized in that: Along the parallel direction (X) of the glue coating area (11a), all the glue blocking parts (12a) are divided into a plurality of glue blocking groups (12A) arranged in sequence; Each of the rubber blocking groups (12A) comprises at least one rubber blocking portion (12a), and the bendable lengths of the bendable sections (a1) of the rubber blocking portions (12a) of the same rubber blocking group (12A) are the same and are the bendable lengths of the rubber blocking group (12A); The bendable length of each group of the rubber blocking groups (12A) is arranged to be gradually changed along the parallel direction (X).

6. The heat exchange plate (10) according to claim 1, characterized in that: Each of the glue blocking portions (12a) extends in the same direction in a strip shape in a direction intersecting the parallel direction (X) of the glue coating area (11a).

7. The heat exchange plate (10) according to claim 1, characterized in that: The rubber blocking structure (12) further comprises a connecting portion (12b), wherein the connecting portion (12b) is arranged on the heat exchange surface (11) and connects all of the rubber blocking portions (12a); The connecting portion (12b) encloses a total glue coating area on the heat exchange surface (11), and each of the glue blocking portions (12a) is at least partially located in the total glue coating area, and divides the total glue coating area into the plurality of glue coating areas (11a).

8. The heat exchange plate (10) according to claim 1, characterized in that: The adhesive blocking structure (12) is bonded to the heat exchange surface (11); and / or the heat exchange surface (11) is arranged vertically.

9. A battery, characterized in that: include: Battery cell (20); and According to the heat exchange plate (10) as described in any one of claims 1 to 8, the heat exchange surface (11) of the heat exchange plate (10) is bonded to the battery cell (20) via the heat conductive adhesive portion located in the adhesive coating area (11a), and the bendable section (a1) of the adhesive blocking portion (12a) is bent and arranged between the heat exchange surface (11) and the battery cell (20).

10. An electrical device, characterized in that: Comprising a battery as claimed in claim 9, the battery is used to provide electrical energy.

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