Heat dissipation mechanism, battery module, and power consumption device

Abstract

The present application relates to a heat dissipation mechanism, a battery module and a power consuming device, the heat dissipation mechanism includes an air-cooling plate (100), the air-cooling plate (100) has a first side (110) and a second side (120) opposite to each other along a first direction (X), and a heat dissipation passage is provided on the first side (110) and / or the second side (120) on the air-cooling plate (100) and extends longitudinally along a second direction (Y), the first direction (X) being perpendicular to the second direction (Y). This heat dissipation mechanism can solve the problem that the heat dissipation of a battery module is poor, which affects its service life, performance and safety.

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims priority to Chinese Patent Application No. 202220564188.2, filed on March 15, 2022, entitled "Heat Dissipation Mechanism, Battery Module and Power Consumption Device", the entire content of which is incorporated herein by reference in its entirety.

[0002] This application relates to the field of battery technology, and particularly to a heat dissipation mechanism, a battery module and a power consumption device.

Background Art

[0003] A battery module is formed by combining a plurality of battery cells in a series - connection or parallel - connection manner. During the operation of the battery module, the battery cells generate heat, causing an increase in the temperature of the battery module. Conventional battery modules have poor heat dissipation performance, which affects the service life, performance and safety of the battery module.

Summary of the Invention

[0004] In view of the above problems, this application provides a heat dissipation mechanism, a battery module and a power consumption device, which can alleviate the problem that the heat dissipation performance of the battery module is poor and affects its service life, performance and safety.

[0005] According to a first aspect, this application provides a heat dissipation mechanism, including an air - cooling plate. The air - cooling plate has a first side and a second side facing each other along a first direction, and a heat dissipation passage extending longitudinally along a second direction is provided on the first side and / or the second side of the air - cooling plate. The first direction is perpendicular to the second direction.

[0006] In the invention of this application, a heat dissipation passage is provided on at least one side of two opposing sides of the air-cooled plate along a first direction, and the heat dissipation passage extends vertically along a second direction. When the air-cooled plate is used on a workpiece, the heat dissipation passage extending vertically along the second direction on the air-cooled plate accelerates and dissipates heat, improving the heat dissipation performance of the workpiece, thereby extending its service life and improving its performance and safety.

[0007] In some embodiments, a first groove is provided on the surface of the first side of the cooling plate, forming a heat dissipation passage, and a second groove is provided on the surface of the second side of the cooling plate, forming a heat dissipation passage. By providing the first groove and the second groove on opposite surfaces of the cooling plate, heat dissipation passages are provided on both sides of the cooling plate, thereby improving the heat dissipation effect. Furthermore, when the cooling plate is used in a battery, the first groove and the second groove can absorb the expansion force of the battery cell.

[0008] In some embodiments, the number of first grooves and / or second grooves is multiple, and the first grooves and second grooves are arranged alternately along a third direction, the third direction being perpendicular to the first direction and the third direction being perpendicular to the second direction.

[0009] By providing multiple first grooves and / or multiple second grooves, the number of heat dissipation passages is increased, and the multiple heat dissipation passages are arranged alternately along a third direction, so that each segment in the third direction has a good heat dissipation effect and the uniformity of heat dissipation is improved.

[0010] In some embodiments, a first projection is provided at the bottom of a first groove, the size of the first projection along a first direction is smaller than the groove depth of the first groove along a first direction, and / or a second projection is provided at the bottom of a second groove, the size of the second projection along a first direction is smaller than the groove depth of the second groove.

[0011] By providing a first projection at the bottom of the first groove, and ensuring that the size of the first projection along its first direction is less than or equal to the groove depth of the first groove along its first direction, the first projection can enhance the structural strength of the first groove when the first groove absorbs the expansion of the battery cell. Similarly, by providing a second projection at the bottom of the second groove, and ensuring that the size of the second projection along its first direction is less than or equal to the groove depth of the second groove along its first direction, the second projection can enhance the structural strength of the second groove when the second groove absorbs the expansion force of the battery cell.

[0012] In some embodiments, the heat dissipation mechanism includes a plurality of air-cooling plates arranged at intervals along a first direction, with a housing space for housing a battery cell formed between two adjacent air-cooling plates, and a heat dissipation passage communicating with the housing space.

[0013] Multiple cooling plates are arranged at intervals along a first direction, and a housing space for housing a battery cell is formed between two adjacent cooling plates. This housing space communicates with a heat dissipation passage, and both sides of the battery cell have heat dissipation passages, thereby improving the heat dissipation effect of the battery cell.

[0014] In some embodiments, at least two locking members are provided on the edge of the cooling plate, each of the at least two locking members located at both ends of the cooling plate along a second direction, and / or at least two locking members located at both ends of the cooling plate along a third direction, thereby forming a locking space for locking a battery cell, the third direction being perpendicular to the first direction and the third direction being perpendicular to the second direction.

[0015] By installing multiple locking members on the edge of the cooling plate, a locking space is formed using these multiple locking members to secure the battery cells. This improves the heat dissipation effect of the cooling plate and simultaneously provides a fixing effect to the battery cells, thereby improving the stability of the battery structure.

[0016] In some embodiments, the locking member includes a first locking portion extending along a second direction and a second locking portion extending along a third direction, the first and second locking portions respectively in contact with adjacent side surfaces of the battery cell.

[0017] The first and second locking portions each extend along two directions perpendicular to each other, forming a right-angled housing space in a single locking member. The two side walls of this right-angled housing space each abut against two adjacent sides of the battery cell, and multiple locking members are combined to form a locking space, resulting in a simple structure that is easy to lock.

[0018] In some embodiments, a first connecting member is provided on the first side of the cooling plate, and a second connecting member matching the first connecting member is provided on the second side, and in two adjacent cooling plates, one of the first connecting members is connected and fixed to the other second connecting member.

[0019] By installing a first connecting member and a second connecting member on opposite sides of the cooling plate, when multiple cooling plates are repeatedly arranged along the first direction, adjacent cooling plates may be connected via the first and second connecting members, thereby improving the stability of the battery structure.

[0020] In some embodiments, a locking projection is provided on the first connecting member, and a locking groove is provided on the second connecting member, and the locking groove engages with the locking projection to fit.

[0021] The connection between two adjacent air-cooling plates is achieved by locking the locking groove and the locking projection, making operation easy and quick.

[0022] In some embodiments, the first and second connecting members are provided with support portions for supporting the battery cell.

[0023] The battery structure becomes more stable when the first and second connecting members are provided with support parts for supporting the battery cells.

[0024] According to a second aspect, the present application provides a battery module, which includes the heat dissipation mechanism describedabove.

[0025] In some embodiments, the battery module further includes a battery module frame, the air cooling plate is provided within the battery module frame, and the battery module frame is provided with an air inlet and an air outlet that face each other along a second direction.

[0026] The battery module frame further supports the battery cells, improving the stability of the battery module structure. Moreover, by providing the air inlet and the air outlet that face each other along the second direction in the battery module frame, the heat dissipation effect of the heat dissipation passage is improved.

[0027] According to a third aspect, the present application provides a power consumption device, which includes the battery module described above, and the battery module is used to provide electrical energy.

[0028] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification, and in order to make the above and other objects, features, and advantages of the present application more clearly and easily understood, the following will specifically describe the specific embodiments of the present application.

[0029] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become apparent to those skilled in the art. The drawings are only used to illustrate the purpose of the preferred embodiments and are not considered as a limitation to the present application. Also, throughout the drawings, the same members are denoted by the same reference numerals.

Brief Description of the Drawings

[0030] [Figure 1] It is a schematic structural view of an air cooling plate in an embodiment of the present application. [Figure 2] It is a schematic structural view of another perspective of the air cooling plate in FIG. 1. [Figure 3] This is a schematic diagram of the heat dissipation mechanism in one embodiment of this application. [Figure 4] Figure 3 is a detailed view of the air-cooling plate of the heat dissipation mechanism. [Figure 5] This is a schematic diagram of the assembly structure of an air-cooling plate and a battery cell in one embodiment of this application. [Figure 6] This is a schematic diagram of the structure of a battery module in one embodiment of this application. [Modes for carrying out the invention]

[0031] To make the above-mentioned objectives, features, and advantages of this application clearer, specific embodiments of this application will be described in detail below, accompanied by drawings. The following description includes many specific details to ensure a full understanding of this application. However, this application can be implemented in many ways different from the other methods described herein, and those skilled in the art can make similar improvements without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that the orientations or positional relationships indicated by technical terms such as "center," "vertical direction," "horizontal direction," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial direction," "radial direction," and "circumferential direction" are orientations or positional relationships shown based on the drawings, and are merely used to simplify the description of this application and to make it easier to write. They do not indicate or imply that the mentioned devices or elements have a specific orientation or must be configured and operated in a specific orientation, and therefore should not be understood as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are merely descriptive and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features being referred to. Thus, features designated as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, unless otherwise clearly and specifically defined, "multiple" means at least two, for example, two, three, etc.

[0034] In this application, unless otherwise explicitly defined or limited, terms such as “attachment,” “connection,” “bonding,” and “fixing” should be understood in a broad sense, and may include, for example, a fixed connection, a removable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or an internal communication between two elements or an interaction relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0035] In this application, unless otherwise explicitly defined or limited, "above" or "below" the second feature means that the first feature may be in direct contact with the second feature, or it may be indirectly in contact with the second feature via an intermediate medium. Furthermore, "above," "above," and "on the top surface" of the second feature means that the first feature is directly above or diagonally above the second feature, or simply that the horizontal height of the first feature is higher than that of the second feature. "Below," "below," and "on the bottom surface" of the second feature means that the first feature is directly below or diagonally below the second feature, or simply that the horizontal height of the first feature is lower than that of the second feature.

[0036] It should be noted that when an element is referred to as "attached" or "installed" to another element, it may be directly located to the other element or there may be an intervening element. When one element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intervening element. The terms “vertical,” “horizontal,” “up,” “down,” “left,” “right,” and similar expressions used herein are for illustrative purposes only and do not represent only one embodiment.

[0037] Currently, given the development of the market, the applications of power batteries are expanding more and more. Power batteries are used not only in energy storage and power systems such as hydroelectric, thermal, wind, and solar power plants, but also in electric transportation tools such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. As the application fields of power batteries continue to expand, the market demand for them is also continuously increasing.

[0038] During the charging and discharging process of a battery, the battery cells generate heat, causing the battery temperature to rise. Excessively high temperatures can affect the battery's lifespan, performance, and safety.

[0039] Currently, to dissipate heat from batteries, a water cooling plate is generally installed at the bottom of the battery cell, or a water cooling channel is installed in the housing frame. When a water cooling plate is installed at the bottom of the battery cell, the water cooling plate can dissipate heat to a certain extent from the bottom of the battery cell, but the sides of the battery cell cannot dissipate heat well. The surface area of ​​the sides of the battery cell is often large, and when heat is dissipated from a battery using such a method, most of the area of ​​the battery cell cannot be effectively dissipated. When a water cooling channel is installed in the housing frame, and multiple battery cells are installed in parallel, the entire sides facing each other between two adjacent battery cells cannot dissipate heat well, and this method also does not easily achieve a good heat dissipation effect. Therefore, currently known methods for dissipating heat from batteries cannot solve the above problems.

[0040] To solve the problem of battery temperature rising and affecting its lifespan, performance, and safety, an embodiment of this application provides a heat dissipation mechanism including an air-cooling plate, the air-cooling plate having opposing sides, with a heat dissipation passage provided on at least one of its surfaces, and the heat dissipation passage having a predetermined extension direction. Based on this, when this heat dissipation mechanism is used in a battery module, by installing the air-cooling plate between two adjacent battery cells, the heat dissipation passage is positioned to the side of the battery cells, thereby using the heat dissipation passage to dissipate the heat generated by the battery cells along the predetermined direction, improving the heat dissipation performance of the battery module and preventing the battery module temperature from becoming too high and affecting the lifespan, performance, and safety of the battery.

[0041] Figure 1 shows a schematic diagram of the structure of an air-cooled plate in one embodiment of this application, Figure 2 shows a schematic diagram of the structure of the air-cooled plate in Figure 1 from a different viewpoint, and Figure 3 shows a schematic diagram of the structure of a heat dissipation mechanism in one embodiment of this application.

[0042] Referring to Figures 1 to 3, a heat dissipation mechanism according to one embodiment of the present application includes an air-cooled plate 100, the air-cooled plate 100 having a first side 110 and a second side 120 facing each other along a first direction X, and on the first side 110 and the second side 120 of the air-cooled plate 100, at least one of them is provided with a heat dissipation passage that extends vertically along a second direction Y, where the first direction X is perpendicular to the second direction Y.

[0043] In the invention of this invention, a heat dissipation passage is provided on at least one side of the air cooling plate 100 on opposite sides in the first direction X, and the heat dissipation passage extends vertically along the second direction Y. As a result, when the air cooling plate 100 is used on a workpiece, the heat dissipation passage extending vertically along the second direction Y on the air cooling plate 100 can accelerate and dissipate heat, improving the heat dissipation performance of the workpiece, thereby extending its service life and improving its performance and safety. To understand this, when this heat dissipation mechanism is used in a battery module, the air cooling plate 100 may be installed between two adjacent battery cells 200 (see Figure 5) of the battery module, in which case the first direction X is parallel to the direction in which the battery cells 200 are arranged.

[0044] According to some embodiments of this application, a first groove 111 is provided on the surface of the first side 110 of the air-cooling plate 100, and the first groove 111 forms a heat dissipation passage, and a second groove 121 is provided on the surface of the second side 120 of the air-cooling plate 100, and the second groove 121 forms a heat dissipation passage. By providing the first groove 111 and the second groove 121 on the opposing surfaces of the air-cooling plate 100, heat dissipation passages are provided on both opposing sides of the air-cooling plate 100, thereby improving the heat dissipation effect.

[0045] Here, the method of providing the first groove 111 and the second groove 121 in the air-cooling plate 100 may be specifically formed simultaneously with the injection molding of the air-cooling plate 100, or it may be formed by cutting after the molding of the air-cooling plate 100. Regarding the specific shape of the first groove 111 and the second groove 121, taking the example that the air-cooling plate 100 is rectangular, the first groove 111 and the second groove 121 extend vertically along the longitudinal direction of the air-cooling plate 100, the groove width direction of the first groove 111 and the second groove 121 is parallel to the width direction of the air-cooling plate 100, and the groove depth direction of the first groove 111 and the second groove 121 is parallel to the thickness direction of the air-cooling plate 100.

[0046] To make it easier to understand, when a heat dissipation mechanism is used in a battery module, the cooling plate 100 may be provided between two adjacent battery cells 200 of the battery module, with the surface of the first side 110 of the cooling plate 100 in contact with the side of one battery cell 200, and the surface of the second side 120 of the cooling plate 100 in contact with the side of the other battery cell 200, and the first groove 111 and the second groove 121 being located on the sides of these two adjacent battery cells 200, respectively, so that when the battery cells 200 expand, the first groove 111 and the second groove 121 can provide space for the expansion of the battery cells 200, thereby achieving the effect of absorbing the expansion force of the battery cells 200.

[0047] According to some embodiments of this application, both the number of first grooves 111 and the number of second grooves 121 are multiple, and the first grooves 111 and the second grooves 121 are arranged alternately along a third direction, where the third direction is perpendicular to the first direction X and perpendicular to the second direction Y. By providing multiple first grooves 111 and multiple second grooves 121 arranged alternately along the third direction, the number of heat dissipation passages is increased, and each segment in the third direction is made to have a good heat dissipation effect.

[0048] In other embodiments, the number of first grooves 111 is one and the number of second grooves 121 is multiple, or the number of first grooves 111 is multiple and the number of second grooves 121 is one. For example, in a specific embodiment, the number of first grooves 111 is one and the number of second grooves 121 is two, and in a third direction, the first groove 111 is located between the two second grooves 121, achieving a uniform arrangement of multiple heat dissipation passages in a third direction.

[0049] According to some embodiments of this application, by selectively providing projection structures at the bottom of the first groove 111 and the second groove 121, the battery cell 200 can be positioned and supported. The molding method for the first projection 112 and the second projection 122 may be specifically formed simultaneously with the injection molding of the air cooling plate 100, or they may be provided after the molding of the air cooling plate 100. Furthermore, the shape of the first projection 112 and the second projection 122 may be elongated and extend along the second direction Y in order to smoothly support the battery cell 200 in the second direction Y.

[0050] Specifically, a first projection 112 is provided at the bottom of the first groove 111, and the size of the first projection 112 along the first direction X is smaller than the groove depth of the first groove 111 along the first direction X. By providing the first projection 112 at the bottom of the first groove 111, and by making the size of the first projection 112 along the first direction X smaller than the groove depth of the first groove 111 along the first direction X, when the first groove 111 absorbs the expansion force of the battery cell 200, the first projection 112 can restrict and support the position of the battery cell 200 within the first groove 111, thereby avoiding excessive expansion deformation of the battery cell 200, and the first projection 112 can further enhance the structural strength of the first groove 111.

[0051] Furthermore, a second projection 122 is provided at the bottom of the second groove 121, and the size of the second projection 122 along the first direction X is smaller than the groove depth of the second groove 121. As a result, when the second groove 121 absorbs the expansion force of the battery cell 200, the second projection 122 can position and support the battery cell 200 within the second groove 121, thereby avoiding excessive expansion deformation of the battery cell 200. At the same time, the second projection 122 can further enhance the structural strength of the second groove 121.

[0052] According to some embodiments of this application, the heat dissipation mechanism includes a plurality of air cooling plates 100 arranged at intervals along a first direction X, with a housing space 130 for housing a battery cell 200 formed between two adjacent air cooling plates 100, and a heat dissipation passage communicating with the housing space 130. By installing a plurality of air cooling plates 100 arranged at intervals along a first direction X, a housing space 130 for housing a battery cell 200 is formed between two adjacent air cooling plates 100, and the housing space 130 communicates with a heat dissipation passage, and the battery cell 200 has heat dissipation passages on both opposing sides, thereby improving the heat dissipation effect of the battery cell 200.

[0053] To make it understandable, when a battery module is fitted with multiple rows of battery cells 200 arranged along a first direction X, the structure of the heat dissipation mechanism can be adjusted to include a group of air-cooling plates 100 arranged at intervals along multiple rows of the first direction X.

[0054] Figure 4 shows a detailed view of the air cooling plate of the heat dissipation mechanism in Figure 3, and Figure 5 shows a schematic diagram of the assembly structure of the air cooling plate and battery cell in one embodiment of this application.

[0055] Referring to Figures 4 and 5, according to some embodiments of this application, at least two locking members 140 are provided on the edge of the cooling plate 100, and the at least two locking members 140 form a locking space for locking the battery cell 200, where the third direction is perpendicular to the first direction X, and the third direction is perpendicular to the second direction Y. By installing at least two locking members 140 on the edge of the cooling plate 100, a locking space for locking the battery cell 200 is formed using the at least two locking members 140, thereby improving the heat dissipation effect of the cooling plate 100 on the battery cell 200, and at the same time performing a fixing action on the battery cell 200, thereby improving the stability of the battery structure.

[0056] Furthermore, the number of locking members 140 may be two, four, or more. If there are two locking members 140, the two locking members 140 are installed at both ends of the cooling plate 100 along the second direction Y, or the two locking members 140 are installed at both ends of the cooling plate 100 along the third direction, thereby locking the battery cell 200. If there are four locking members 140, locking members 140 may be installed at both ends of the cooling plate 100 along the second direction Y and at both ends along the third direction, thereby more stably locking the cooling plate 100 within the locking space. If there are more than four cooling plates 100, locking members 140 may be installed at both ends of the cooling plate 100 along the second direction Y and at both ends along the third direction, and the number of locking members 140 at least at one end is two or more, thereby improving the stability of locking the battery cell 200.

[0057] According to some embodiments of this application, the locking member 140 includes a first locking portion 141 extending along a second direction Y and a second locking portion 142 extending along a third direction, the first locking portion 141 and the second locking portion 142 each abutting against adjacent side surfaces of the battery cell 200. The first locking portion 141 and the second locking portion 142 each extend along two directions perpendicular to each other, forming a right-angled housing space 130 in a single locking member 140, the two side walls of this right-angled housing space 130 each abutting against two adjacent side surfaces of the battery cell 200, and multiple locking members 140 are combined to form a locking space, resulting in a simple structure and easy locking. Here, the locking member 140 may be integrally molded with the air cooling plate 100, or specifically by injection molding, thereby simplifying the molding method of the air cooling plate 100.

[0058] According to some embodiments of this application, a first connecting member 150 is provided on the first side 110 of the cooling plate 100, and a second connecting member 160 matching the first connecting member 150 is provided on the second side 120, and in two adjacent cooling plates 100, one of the first connecting member 150 is connected and fixed to the other second connecting member 160. By providing the first connecting member 150 and the second connecting member 160 on opposite sides of the cooling plate 100, when a plurality of cooling plates 100 are repeatedly arranged along a first direction X, the connection between two adjacent cooling plates 100 may be made via the first connecting member 150 and the second connecting member 160, thereby improving the stability of the battery structure. Here, the number of first connecting members 150 and second connecting members 160 may be one or more. If the number of both first connecting members 150 and second connecting members 160 is multiple, the multiple first connecting members 150 are arranged along the second direction Y, and the multiple second connecting members 160 are arranged along the second direction Y, thereby making the connection more stable. Here, the first connecting members 150 and second connecting members 160 may be integrally molded with the air cooling plate 100, or specifically by injection molding, to provide them with strong structural strength.

[0059] Furthermore, the first connecting member 150 is provided with a locking projection 151, and the second connecting member 160 is provided with a locking groove 161, the locking groove 161 engaging with the locking projection 151. The locking between the locking groove 161 and the locking projection 151 enables the connection between two adjacent air-cooled plates 100, and the operation is easy and quick. Specifically, the locking projection 151 extends outward from the air-cooled plate 100 along a first direction X, and the locking groove 161 has a notch facing a third direction and a notch facing the first direction X, so that the locking projection 151 can engage with the locking groove 161 along the first direction X or the third direction, resulting in a simple structure and easy and quick operation.

[0060] Furthermore, the first connecting member 150 and the second connecting member 160 are provided with support portions for supporting the battery cell 200. After the first connecting member 150 and the second connecting member 160 engage with the locking projection 151 via the locking groove 161, the support portions on the first connecting member 150 and the second connecting member 160 support the battery cell 200 between two adjacent air cooling plates 100, thereby better fixing the battery cell 200 between the two adjacent air cooling plates 100.

[0061] The embodiments of this application further provide a battery module.

[0062] Figure 6 shows a schematic diagram of the structure of a battery module in one embodiment of this application.

[0063] Referring to Figure 6, according to some embodiments of this application, the battery module includes the heat dissipation mechanism described above.

[0064] Furthermore, the battery module further includes a battery module frame, and the cooling plate 100 is provided within the battery module frame. The battery module frame is provided with an intake port and an exhaust port facing each other along the second direction Y. The battery module frame further supports the battery cells 200, improving the stability of the battery module structure. Moreover, by providing the intake port and exhaust port facing each other along the second direction Y on the battery module frame, the heat dissipation effect of the heat dissipation passage is improved.

[0065] In a battery module, there may be multiple battery cells 200, and the connections between the multiple battery cells 200 may be in series, parallel, or series-parallel. Series-parallel connection means that the multiple battery cells 200 may be connected in series or in parallel. The multiple battery cells 200 may be directly connected in series, parallel, or series-parallel, and the entire assembly of the multiple battery cells 200 may be housed in a casing. Of course, the battery module may first be constructed by connecting multiple battery cells 200 in series, parallel, or series-parallel, and then the multiple battery modules may be connected in series, parallel, or series-parallel to form a single unit, which may then be housed in a casing. The battery module may further include other structures; for example, this battery module may further include busbar members for realizing electrical connections between the multiple battery cells 200.

[0066] Here, each battery cell 200 may be a secondary battery or a primary battery, and may be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 200 may have a cylindrical, flattened, rectangular parallelepiped, or other shape.

[0067] Embodiments of this application further provide a power consumption device, and according to some embodiments of this application, the power consumption device includes a battery module, which is used to provide electrical energy.

[0068] Power-consuming devices may be used in, but are not limited to, mobile phones, tablets, laptop computers, electric toys, power tools, battery-powered cars, electric vehicles, ships, and spacecraft. Here, electric toys may include stationary or mobile electric toys, such as game consoles, electric vehicle toys, electric boat toys, and electric airplane toys, and spacecraft may include airplanes, rockets, spacecraft, and spaceships.

[0069] Referring to some embodiments of the present application, specifically Figures 1 to 3, the present application provides a heat dissipation mechanism comprising a plurality of air-cooling plates 100 spaced apart along a first direction X, with a housing space 130 for housing a battery cell 200 formed between two adjacent air-cooling plates 100, and a heat dissipation passage communicating with the housing space 130. Here, each air-cooling plate 100 has a first side 110 and a second side 120 facing each other along the first direction X, with two first grooves 111 provided on the surface of the first side 110 of the air-cooling plate 100 and one second groove 121 provided on the surface of the second side 120 of the air-cooling plate 100, both of which form a heat dissipation passage, and the first grooves 111 and the second grooves 121 are arranged alternately along a third direction, where the third direction is perpendicular to the first direction X and perpendicular to the second direction Y. This allows heat to be simultaneously dissipated from the battery cell 200 using the heat dissipation passages on the first side 110 and the second side 120, thereby uniformly improving the heat dissipation efficiency at each part of the battery cell 200.

[0070] A first projection 112 is provided at the bottom of the first groove 111, and a second projection 122 is provided at the bottom of the second groove 121, thereby restricting and supporting the position of the battery cell 200, preventing excessive expansion and deformation of the battery cell 200, and simultaneously strengthening its structural integrity. Locking members 140 are provided at both ends of the air cooling plate 100 along the second direction Y, and these locking members 140 at both ends form a locking space for locking the battery cell 200, fixing the battery cell 200 and improving the stability of the battery structure. A first connecting member 150 is provided on the first side 110 of the air cooling plate 100, and a second connecting member 160 matching the first connecting member 150 is provided on the second side 120. In two adjacent air cooling plates 100, one of the first connecting members 150 is connected and fixed to the other second connecting member 160, thereby connecting the two adjacent air cooling plates 100 via the first connecting member 150 and the second connecting member 160, and thereby improving the stability of the battery structure.

[0071] Each of the technical features of the embodiments described above can be combined in any way, and for the sake of brevity, not all possible combinations of each technical feature in the embodiments described above are described; however, as long as there is no contradiction in these combinations of technical features, they should all be considered to fall within the scope described herein.

[0072] The above embodiments illustrate only a few embodiments of this application, and while the descriptions are more specific and detailed, they should not be understood as limiting the scope of the invention patent. It should be noted that a person skilled in the art can make several further modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be in accordance with the attached claims. [Explanation of Symbols]

[0073] 100 Air-cooling plate, 110 First side, 111 First groove, 112 First projection, 120 Second side, 121 Second groove, 122 Second projection, 130 Housing space, 140 Locking member, 141 First locking part, 142 Second locking part, 150 First connecting member, 151 Locking projection, 160 Second connecting member, 161 Locking groove, 200 battery cells, X is the first direction, Y is the second direction, and Z is the third direction.

Claims

1. A heat dissipation mechanism, including an air-cooling plate (100), The air-cooled plate (100) has a first side (110) and a second side (120) facing each other along a first direction (X), and a heat dissipation passage is provided on the air-cooled plate (100) on the first side (110) and / or the second side (120) that extends vertically along a second direction (Y). The first direction (X) is perpendicular to the second direction (Y), The heat dissipation mechanism includes a plurality of cooling plates (100) arranged at intervals along the first direction (X), with a housing space (130) for housing a battery cell (200) formed between two adjacent cooling plates (100). At least two locking members (140) are provided at both ends of the air cooling plate (100) along the second direction (Y), and the locking member (140) of one of two adjacent air cooling plates (100) and the locking member (140) of the other air cooling plate (100) are in contact in the first direction (X), thereby locking the battery cell (200) into the housing space (130). A first connecting member (150) is provided on the first side (110) of the air-cooling plate (100), and a second connecting member (160) that matches the first connecting member (150) is provided on the second side (120). In two adjacent air-cooling plates (100), the first connecting member (150) of one of them is connected and fixed to the other second connecting member (160). The first connecting member (150) is provided with a locking projection (151), and the locking projection (151) extends outward from the air-cooling plate (100) along the first direction (X), The second connecting member (160) is provided with a locking groove (161), and the locking groove (161) has a notch facing a third direction (Z) and a notch facing the first direction (X), the third direction (Z) is perpendicular to the first direction (X), and the third direction (Z) is perpendicular to the second direction (Y), The locking groove (161) is a heat dissipation mechanism that fits by locking onto the locking projection (151).

2. A first groove (111) is provided on the surface of the first side (110) of the air-cooled plate (100), and the first groove (111) forms the heat dissipation passage. The heat dissipation mechanism according to claim 1, wherein a second groove (121) is provided on the surface of the second side (120) of the air-cooled plate (100), and the second groove (121) forms the heat dissipation passage.

3. The number of the first groove (111) and / or the second groove (121) is multiple. The heat dissipation mechanism according to claim 2, wherein the first groove (111) and the second groove (121) are arranged alternately along the third direction (Z).

4. A first projection (112) is provided at the bottom of the first groove (111), and the size of the first projection (112) along the first direction (X) is smaller than the groove depth of the first groove (111) along the first direction (X), and / or The heat dissipation mechanism according to claim 3, wherein a second projection (122) is provided at the bottom of the second groove (121), and the size of the second projection (122) along the first direction (X) is smaller than the groove depth of the second groove (121).

5. The heat dissipation mechanism according to claim 1, wherein the heat dissipation passage communicates with the housing space (130).

6. The heat dissipation mechanism according to claim 1, wherein at least two more locking members (140) are provided at both ends of the air-cooling plate (100) along the third direction (Z).

7. The locking member (140) includes a first locking portion (141) extending along the second direction (Y) and a second locking portion (142) extending along the third direction (Z). The heat dissipation mechanism according to claim 6, wherein the first locking portion (141) and the second locking portion (142) each abut against adjacent side surfaces of the battery cell (200).

8. The heat dissipation mechanism according to claim 1, wherein the first connecting member (150) and the second connecting member (160) are provided with support portions for supporting the battery cell (200).

9. A battery module comprising a heat dissipation mechanism according to any one of claims 1 to 8.

10. The battery module further includes a battery module frame, and the cooling plate (100) is provided within the battery module frame. The battery module according to claim 9, wherein the battery module frame is provided with an intake port and an exhaust port facing each other along a second direction (Y).

11. A power consumption device comprising a battery module as described in claim 9, wherein the battery module is used to provide electrical energy.

Images