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 is incorporated by reference into Chinese Patent Application No. 202220564188.2, filed on March 15, 2022, entitled "Heat Dissipation Mechanism, Battery Module and Power Consumption Device," the entire contents of which are incorporated by reference into this application.

[0002] The present application relates to the field of battery technology, and in particular to heat dissipation mechanisms, battery modules and power consuming devices. [Background technology]

[0003] A battery module is formed by combining a number of battery cells in a serial or parallel connection manner, and during the operation of the battery module, the battery cells generate heat, which causes the temperature of the battery module to rise. The conventional battery module has 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, the present application provides a heat dissipation mechanism, a battery module and a power consumption device, which can alleviate the problem of poor heat dissipation of a battery module affecting its service life, performance and safety.

[0005] According to a first aspect, the present application provides a heat dissipation mechanism, comprising an air-cooled plate having a first side and a second side opposite each other along a first direction, and a heat dissipation passage is provided on the air-cooled plate, the heat dissipation passage extending longitudinally along the second direction on the first side and / or the second side, the first direction being perpendicular to the second direction.

[0006] In the technical solution of the embodiment of the present application, a heat dissipation passage is installed on at least one of the opposing sides of the air-cooled plate along a first direction, and the heat dissipation passage extends vertically along a second direction, so that when the air-cooled plate is used for a workpiece, the heat dissipation passage extending vertically along the second direction on the air-cooled plate can accelerate and diffuse heat, and improve 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 a surface of a first side of the air-cooling plate, the first groove forming a heat dissipation passage, and a second groove is provided on a surface of a second side of the air-cooling plate, the second groove forming a heat dissipation passage. By providing the first groove and the second groove on the opposite surfaces of the air-cooling plate, respectively, heat dissipation passages are provided on both opposite sides of the air-cooling plate, thereby improving the heat dissipation effect. In addition, when the air-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 the first grooves and / or the second grooves is multiple, the first grooves and the second grooves are alternately arranged along a third direction, the third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

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

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

[0011] A first protrusion is provided at the bottom of the first groove, and the size of the first protrusion in the first direction is equal to or smaller than the depth of the first groove in the first direction, so that the first protrusion can strengthen the structural strength of the first groove when the first groove absorbs the expansion of the battery cell. Similarly, a second protrusion is provided at the bottom of the second groove, and the size of the second protrusion in the first direction is equal to or smaller than the depth of the second groove in the first direction, so that the second protrusion can strengthen the structural strength of the second groove when the second groove absorbs the expansion of the battery cell.

[0012] In some embodiments, the heat dissipation mechanism includes a plurality of air-cooled plates arranged at intervals along the first direction, a storage space for accommodating the battery cells is formed between two adjacent air-cooled plates, and the heat dissipation passage is in communication with the storage space.

[0013] A plurality of air-cooling plates are arranged at intervals along a first direction, and an accommodation space for accommodating a battery cell is formed between two adjacent air-cooling plates. The accommodation space communicates with the heat dissipation passage, and both opposing sides of the battery cell have a heat dissipation passage, 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 air-cooling plate, the at least two locking members being provided at both ends of the air-cooling plate along the second direction, and / or the at least two locking members being provided at both ends of the air-cooling plate along a third direction, thereby forming a locking space for locking the 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 air-cooling plate, a locking space is formed for locking the battery cells using the multiple locking members, so that the air-cooling plate improves the heat dissipation effect of the battery cells, and at the same time, it also serves to fix 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 the second direction and a second locking portion extending along a third direction, the first locking portion and the second locking portion abutting adjacent side surfaces of the battery cell, respectively.

[0017] The first locking portion and the second locking portion extend along two directions perpendicular to each other, respectively, forming a right-angled accommodating space in the single locking member, and the two side walls of this right-angled accommodating space abut against two adjacent side surfaces of the battery cell respectively. The locking space is formed by combining multiple locking members, resulting in a simple structure and easy locking.

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

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

[0020] In some embodiments, the first connecting member is provided with a locking protrusion and the second connecting member is provided with a locking groove, which is adapted to lock into the locking protrusion.

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

[0022] In some embodiments, the first connection member and the second connection member are provided with supports for supporting the battery cells.

[0023] By providing the first connection member and the second connection member with support portions for supporting the battery cells, the battery structure becomes more stable.

[0024] According to a second aspect, the present application provides a battery module, including the heat dissipation mechanism described above.

[0025] In some embodiments, the battery module further includes a battery module frame, the air cooling plate being disposed within the battery module frame, and the battery module frame being provided with an air intake port and an air exhaust port facing each other along the second direction.

[0026] The battery module frame further supports the battery cells to improve the stability of the battery module structure, and the battery module frame has an air inlet and an air outlet facing each other along the second direction, thereby improving the heat dissipation effect of the heat dissipation passage.

[0027] According to a third aspect, the present application provides a power consuming device, the power consuming device comprising the battery module as described above, the battery module being used for providing electrical energy.

[0028] The above description is only an outline of the technical solution of the present application, which can be implemented in accordance with the contents of the specification in order to more clearly understand the technical means of the present application, and in order to make the above and other objectives, features and advantages of the present application more obvious and comprehensible, the following particularly cites specific embodiments of the present application to describe them.

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The drawings are only used to illustrate the purpose of the preferred embodiments, but are not to be considered as limitations on the present application. Also, the same elements are designated by the same reference numerals throughout the drawings. [Brief description of the drawings]

[0030] [Figure 1] FIG. 2 is a structural schematic diagram of an air-cooling plate in one embodiment of the present application. [Diagram 2] 2 is a structural schematic diagram of the air-cooling plate in FIG. 1 from another viewpoint. [Diagram 3] FIG. 2 is a structural schematic diagram of a heat dissipation mechanism in an embodiment of the present application. [Figure 4] 4 is a detailed view of the air-cooling plate of the heat dissipation mechanism in FIG. 3. [Diagram 5] FIG. 2 is a schematic diagram of an assembly structure of an air-cooling plate and a battery cell in one embodiment of the present application. [Figure 6] 1 is a structural schematic diagram of a battery module in an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] In order to make the above-mentioned objects, features and advantages of the present application more comprehensible, the following describes in detail the specific embodiments of the present application in conjunction with the drawings. In the following description, many specific details are described in order to fully understand the present application. However, the present application can be implemented in many ways different from other ways described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific examples disclosed below.

[0032] In the description of the present application, it should be understood that the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are orientations or positional relationships shown based on the drawings, and are merely intended to facilitate and simplify the description of the present application, and do not indicate or imply that the referred devices or elements must have a specific orientation and be configured and operated in a specific orientation, and therefore should not be understood as limitations on the present application.

[0033] It should be noted that the terms "first" and "second" are merely descriptive and should not be understood as indicating or implying the relative importance or the number of the technical features being indicated, whereby a feature qualified with "first" or "second" may explicitly or implicitly include at least one of said features. In the description of this application, unless otherwise expressly and specifically limited, "plurality" means at least two, e.g., two, three, etc.

[0034] In this application, unless otherwise clearly defined or limited, the terms "attached", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, may be a fixed connection, a detachable connection, or an integral part, may be a mechanical connection, may be an electrical connection, may be a direct connection, may be an indirect connection through an intermediate medium, may be an internal communication between two elements, or may be an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific situation.

[0035] In this application, unless otherwise clearly defined or limited, a first feature being "above" or "below" a second feature means that the first feature may be in direct contact with the second feature, or that the first feature may be in indirect contact with the second feature via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a 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. A first feature being "below," "below," and "on the lower surface" of a 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 explained that when an element is referred to as "fixed to" or "mounted on" another element, it may be directly located on the other element or there may be intervening elements present. When an element is referred to as "connected to" another element, it may be directly connected to the other element or there may be intervening elements present. The terms "vertical," "horizontal," "up," "down," "left," "right," and similar terms used herein are for illustrative purposes only and do not represent the only embodiments.

[0037] At present, in view of the development of the market situation, the application of power battery is becoming more and more widespread. Power battery is not only used in energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric transportation tools such as electric bicycles, electric motorcycles, electric cars, and military equipment and aerospace, etc. With the continuous expansion of the application field of power battery, its market demand also continues to increase.

[0038] During the charging and discharging process of a battery, the battery cells will generate heat, causing the battery temperature to rise; too high a temperature will affect the service life, performance and safety of the battery.

[0039] Currently, in order to dissipate heat from a battery, a water-cooled plate is generally installed at the bottom of the battery cell, or a water-cooled channel is installed in the housing frame. When a water-cooled plate is installed at the bottom of the battery cell, the water-cooled plate can perform a certain heat dissipation function for the bottom of the battery cell, but the side of the battery cell cannot dissipate heat well, and the side area of ​​the battery cell is often large, so when this heat dissipation method is used to dissipate heat from a battery, most of the area of ​​the battery cell cannot dissipate heat effectively. When a water-cooled channel is installed in the housing frame, when 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 is also difficult to achieve a good heat dissipation effect. Therefore, the currently known methods of dissipating heat from a battery cannot solve the above problems.

[0040] In order to solve the problem of the rise in battery temperature affecting its service life, performance and safety, an embodiment of the present application provides a heat dissipation mechanism, which includes an air-cooling plate, which has opposite sides and at least one surface of which is provided with a heat dissipation passage, and which has a predetermined extension direction. Based on this, when this heat dissipation mechanism is used in a battery module, the air-cooling plate is installed between two adjacent battery cells, so that the heat dissipation passage is located on the side of the battery cells, and the heat dissipation passage is used to dissipate heat generated by the battery cells in the predetermined direction, thereby improving the heat dissipation performance of the battery module and preventing the battery module temperature from being too high and affecting the service life, performance and safety of the battery.

[0041] FIG. 1 shows a schematic structural diagram of an air-cooling plate in one embodiment of the present application, FIG. 2 shows a schematic structural diagram of the air-cooling plate in FIG. 1 from another perspective, and FIG. 3 shows a schematic structural diagram of a heat dissipation mechanism in one embodiment of the present application.

[0042] 1 to 3, a heat dissipation mechanism according to one embodiment of the present application includes an air-cooled plate 100, which has a first side 110 and a second side 120 opposite to each other along a first direction X, and a heat dissipation passage extending longitudinally along a second direction Y is provided on at least one of the first side 110 and the second side 120 of the air-cooled plate 100, where the first direction X is perpendicular to the second direction Y.

[0043] In the technical solution of the embodiment of the present application, a heat dissipation passage is provided on at least one of the opposite sides of the air-cooling plate 100 in the first direction X, and the heat dissipation passage extends longitudinally along the second direction Y, so that when the air-cooling plate 100 is used in a workpiece, the heat dissipation passage extending longitudinally along the second direction Y on the air-cooling plate 100 can accelerate and diffuse heat, improving the heat dissipation performance of the workpiece, thereby extending its service life and improving its performance and safety. As can be understood, 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 FIG. 5) of the battery module, and in this case, the first direction X is parallel to the arrangement direction of the battery cells 200.

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

[0045] Here, the manner of providing the first groove 111 and the second groove 121 on the air-cooled plate 100 may be specifically formed simultaneously with the injection molding of the air-cooled plate 100, or may be formed by cutting after molding the air-cooled plate 100. Regarding the specific shape of the first groove 111 and the second groove 121, taking the air-cooled plate 100 as an example with a rectangular shape, the first groove 111 and the second groove 121 extend vertically along the longitudinal direction of the air-cooled plate 100, and the groove width direction of the first groove 111 and the second groove 121 is parallel to the width direction of the air-cooled 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-cooled plate 100.

[0046] As can be understood, when the heat dissipation mechanism is used in a battery module, an air-cooling plate 100 may be disposed between two adjacent battery cells 200 of the battery module, the surface of the first side 110 of the air-cooling plate 100 abuts against the side of one battery cell 200, and the surface of the second side 120 of the air-cooling plate 100 abuts against the side of the other battery cell 200, and the first groove 111 and the second groove 121 are respectively located on the sides of the two adjacent battery cells 200, so that when the battery cell 200 expands, the first groove 111 and the second groove 121 can provide a space for the expansion of the battery cell 200, thereby achieving the effect of absorbing the expansion force of the battery cell 200.

[0047] According to some embodiments of the present application, the number of the first grooves 111 and the number of the second grooves 121 are both plural, and the first grooves 111 and the second grooves 121 are alternately arranged along a third direction, where the third direction is perpendicular to the first direction X, and the third direction is perpendicular to the second direction Y. By arranging the plurality of first grooves 111 and the plurality of second grooves 121 alternately arranged along the third direction, the number of heat dissipation paths is increased, and each segment in the third direction has a good heat dissipation effect.

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

[0049] According to some embodiments of the present application, a protrusion structure is selectively provided at the bottom of the first groove 111 and the second groove 121, thereby regulating the position of and supporting the battery cell 200. Specifically, the first protrusion 112 and the second protrusion 122 may be formed simultaneously with the injection molding of the air-cooling plate 100, or may be provided after molding of the air-cooling plate 100. In addition, the first protrusion 112 and the second protrusion 122 may have an elongated shape extending along the second direction Y in order to smoothly support the battery cell 200 in the second direction Y.

[0050] Specifically, a first protrusion 112 is provided at the bottom of the first groove 111, and the size of the first protrusion 112 in the first direction X is smaller than the depth of the first groove 111 in the first direction X. Since the first protrusion 112 is provided at the bottom of the first groove 111 and the size of the first protrusion 112 in the first direction X is smaller than the depth of the first groove 111 in the first direction X, when the first groove 111 absorbs the expansion force of the battery cell 200, the first protrusion 112 can position and support the battery cell 200 in the first groove 111, thereby preventing excessive expansion and deformation of the battery cell 200, and the first protrusion 112 can also enhance the structural strength of the first groove 111.

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

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

[0053] As can be understood, when the battery module is provided with battery cells 200 arranged along a first direction X in multiple rows, the structure of the heat dissipation mechanism can be adjusted to include a group of air-cooling plates 100 correspondingly arranged at intervals along the first direction X in multiple rows.

[0054] FIG. 4 shows a detailed view of the air-cooling plate of the heat dissipation mechanism in FIG. 3, and FIG. 5 shows a schematic diagram of an assembly structure of the air-cooling plate and the battery cells in one embodiment of the present application.

[0055] 4 and 5, according to some embodiments of the present application, at least two locking members 140 are provided on the edge of the air-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 providing at least two locking members 140 on the edge of the air-cooling plate 100, the at least two locking members 140 are used to form a locking space for locking the battery cell 200, so that the air-cooling plate 100 can improve the heat dissipation effect of the battery cell 200, and at the same time, can play a fixing role on the battery cell 200, thereby improving the stability of the battery structure.

[0056] Furthermore, the number of the locking members 140 may be two, four or more. When the number of the locking members 140 is two, two locking members 140 are respectively installed at both ends of the air-cooling plate 100 along the second direction Y, or two locking members 140 are respectively installed at both ends of the air-cooling plate 100 along the third direction, thereby locking the battery cells 200. When the number of the locking members 140 is four, the locking members 140 may be installed at both ends of the air-cooling plate 100 along the second direction Y and both ends of the air-cooling plate 100 along the third direction, thereby making the air-cooling plate 100 more stably locked in the locking space. When the number of the air-cooling plates 100 is more than four, the locking members 140 may be installed at both ends of the air-cooling plate 100 along the second direction Y and both ends of the air-cooling plate 100 along the third direction, and the number of the locking members 140 at at least one end is two or more, thereby improving the stability of locking the battery cells 200.

[0057] According to some embodiments of the present application, 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, and the first locking portion 141 and the second locking portion 142 respectively abut on adjacent two sides of the battery cell 200. The first locking portion 141 and the second locking portion 142 respectively extend along two directions perpendicular to each other, so that the single locking member 140 forms a rectangular accommodating space 130, and the two side walls of the rectangular accommodating space 130 abut on two adjacent sides of the battery cell 200 respectively. The locking space is formed by combining a plurality of locking members 140, which has a simple structure and is easy to lock. Here, the locking member 140 may be integrally molded with the air-cooled plate 100, specifically by injection molding, thereby simplifying the molding method of the air-cooled plate 100.

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

[0059] Furthermore, the first connecting member 150 is provided with a locking protrusion 151, and the second connecting member 160 is provided with a locking groove 161, which is locked and fitted to the locking protrusion 151. The connection between the two adjacent air-cooled plates 100 is realized by the locking between the locking groove 161 and the locking protrusion 151, and the operation is easy and quick. Specifically, the locking protrusion 151 protrudes and extends along the first direction X relative to the air-cooled plate 100, and the locking groove 161 has a notch facing the third direction and a notch facing the first direction X, so that the locking protrusion 151 can be engaged into the locking groove 161 along the first direction X or the third direction, and the structure is simple and the operation is easy and quick.

[0060] Furthermore, the first connection member 150 and the second connection member 160 are provided with support portions for supporting the battery cells 200, and after the first connection member 150 and the second connection member 160 realize engagement with the locking protrusions 151 via the locking grooves 161, the support portions on the first connection member 150 and the second connection member 160 support the battery cells 200 between two adjacent air-cooled plates 100, so that the battery cells 200 are better fixed between the two adjacent air-cooled plates 100.

[0061] An embodiment of the present application further provides a battery module.

[0062] FIG. 6 shows a structural schematic diagram of a battery module in one embodiment of the present application.

[0063] Referring to FIG. 6, according to some embodiments of the present application, a battery module includes the above-mentioned heat dissipation mechanism.

[0064] Furthermore, the battery module further includes a battery module frame, in which the air-cooling plate 100 is installed, and the battery module frame is provided with an air inlet and an air outlet 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. In addition, the air inlet and the air outlet facing each other along the second direction Y are installed on the battery module frame, improving the heat dissipation effect of the heat dissipation passage.

[0065] In the battery module, the battery cell 200 may be multiple, and the multiple battery cells 200 may be connected in series, parallel, or series-parallel. The 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 battery cell 200 may be housed in a housing. Of course, the battery module may be a battery module formed by first connecting the multiple battery cells 200 in series, parallel, or series-parallel, and then connecting the multiple battery modules in series, parallel, or series-parallel to form an integrated battery module housed in a housing. The battery module may further include other structures, for example, the battery module may further include a bus bar member for realizing electrical connection between the multiple battery cells 200.

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

[0067] An embodiment of the present application further provides a power consuming device, according to some embodiments of the present application, the power consuming device includes a battery module, the battery module being used to provide electrical energy.

[0068] The power consumption device may be used in, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery vehicle, an electric car, a ship, a spacecraft, etc. Here, the electric toy may include a stationary or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, an electric plane toy, etc., and the spacecraft may include an airplane, a rocket, a spacecraft, a spaceship, etc.

[0069] According to some embodiments of the present application, referring to Fig. 1 to Fig. 3, the present application provides a heat dissipation mechanism, comprising a plurality of air-cooling plates 100 arranged at intervals along a first direction X, a receiving space 130 for receiving a battery cell 200 is formed between two adjacent air-cooling plates 100, and a heat dissipation passage communicates with the receiving 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, two first grooves 111 are provided on the surface of the first side 110 of the air-cooling plate 100, and one second groove 121 is provided on the surface of the second side 120 of the air-cooling plate 100, the first groove 111 and the second groove 121 both form a heat dissipation passage, and the first groove 111 and the second groove 121 are alternately arranged along a third direction, where the third direction is perpendicular to the first direction X, and the third direction is perpendicular to the second direction Y. Thus, the heat dissipation paths of the first side 110 and the second side 120 are used to simultaneously dissipate heat from the battery cells 200, thereby improving the heat dissipation efficiency of each part of the battery cells 200 uniformly.

[0070] A first protrusion 112 is provided at the bottom of the first groove 111, and a second protrusion 122 is provided at the bottom of the second groove 121, which serve to position and support the battery cell 200, prevent excessive expansion and deformation of the battery cell 200, and at the same time strengthen the structural strength. Locking members 140 are provided at both ends of the air-cooling plate 100 in the second direction Y, and these locking members 140 at both ends form locking spaces for locking the battery cell 200, fix the battery cell 200, and improve the stability of the battery structure. A first connecting member 150 is provided on a first side 110 of the air-cooling plate 100, and a second connecting member 160 matching the first connecting member 150 is provided on a 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, so that the two adjacent air-cooling plates 100 can be connected via the first connecting member 150 and the second connecting member 160, thereby improving the stability of the battery structure.

[0071] Each of the technical features of the embodiments described above can be combined in any combination. For the sake of brevity, not all possible combinations of each of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, any combination should be considered within the scope of the present specification.

[0072] The above examples only show some embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the invention patent. It should be noted that those skilled in the art can make some modifications and improvements without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent shall be subject to the scope of the attached claims. [Explanation of symbols]

[0073] 100 air cooling plate, 110 first side, 111 first groove, 112 first protrusion, 120 second side, 121 second groove, 122 second protrusion, 130 accommodating space, 140 locking member, 141 first locking portion, 142 second locking portion, 150 first connecting member, 151 locking protrusion, 160 second connecting member, 161 locking groove, 200 battery cells, X the first direction, Y the second direction, Z the third direction.

Claims

1. A heat dissipation mechanism comprising 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) and extends vertically along a second direction (Y); The heat dissipation mechanism, wherein the first direction (X) is perpendicular to the second direction (Y).

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

3. The number of the first grooves (111) and / or the second grooves (121) is plural, The first grooves (111) and the second grooves (121) are alternately arranged along a third direction (Z); The heat dissipation mechanism according to claim 2 , wherein the third direction (Z) is perpendicular to the first direction (X), and the third direction (Z) is perpendicular to the second direction (Y).

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

5. The heat dissipation mechanism includes a plurality of the air-cooling plates (100) arranged at intervals along the first direction (X), 5. The heat dissipation mechanism according to claim 4, wherein an accommodation space (130) for accommodating a battery cell (200) is formed between two adjacent air-cooling plates (100), and the heat dissipation passage communicates with the accommodation space (130).

6. At least two locking members (140) are provided on the edge of the air cooling plate (100), At least two of the locking members (140) are provided at both ends of the air-cooling plate (100) along the second direction (Y), and / or at least two of the locking members (140) are provided at both ends of the air-cooling plate (100) along the third direction (Z), thereby forming a locking space for locking the battery cell (200); The heat dissipation mechanism according to claim 5 , wherein the third direction (Z) is perpendicular to the first direction (X), and the third direction (Z) is perpendicular to the second direction (Y).

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 engaging portion (141) and the second engaging portion (142) respectively abut against adjacent side surfaces of the battery cell (200).

8. A first connecting member (150) is provided on a first side (110) of the air cooling plate (100), and a second connecting member (160) matching the first connecting member (150) is provided on a second side (120); The heat dissipation mechanism according to claim 5 , wherein the first connection member (150) of one of the two adjacent air-cooling plates (100) is connected and fixed to the second connection member (160) of the other of the two adjacent air-cooling plates (100).

9. The first connecting member (150) is provided with a locking protrusion (151), The second connecting member (160) is provided with a locking groove (161), The heat dissipation mechanism according to claim 8, wherein the locking groove (161) is adapted to lock onto the locking protrusion (151).

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

11. A battery module comprising the heat dissipation mechanism according to claim 1 .

12. The battery module further includes a battery module frame, and the air-cooling plate (100) is provided in the battery module frame; The battery module according to claim 11 , wherein the battery module frame is provided with an intake port and an exhaust port facing each other along the second direction (Y).

13. 12. A power consuming device, comprising a battery module according to claim 11, said battery module being used to provide electrical energy.

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