Battery and electric device

Abstract

The utility model relates to a battery and an electric device. The battery comprises a heat exchange bottom plate, at least two heat exchange side plate sets and at least two battery units, all the heat exchange side plate sets and all the battery units are installed on the top side of the heat exchange bottom plate, all the heat exchange side plate sets are arranged in the length direction of the heat exchange bottom plate, and the heat exchange side plate sets and the battery units are in one-to-one correspondence; each heat exchange side plate set comprises at least two heat exchange side plates, all the heat exchange side plates of the same heat exchange side plate set are arranged at intervals in the width direction of the heat exchange bottom plate, and every two adjacent heat exchange side plates in the same heat exchange side plate set and the heat exchange bottom plate jointly define a heat exchange space. Each battery unit comprises at least one battery module, in the corresponding heat exchange side plate sets and the battery units, the battery modules are installed in the heat exchange spaces in a one-to-one correspondence mode, and the battery modules exchange heat through the heat exchange side plates and the heat exchange bottom plates which define the heat exchange spaces where the battery modules are located. According to the battery and the electric device provided by the invention, the charge-discharge rate can be improved, and the heating or cooling effect is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and specifically to a battery and an electrical device. Background Art

[0002] As core components for energy storage and conversion, batteries have been widely used in a variety of fields, including new energy vehicles, energy storage power stations, ships, and spacecraft. Taking commercial vehicle applications as an example, batteries in existing mainstream commercial vehicles have low charge and discharge rates, poor heating and cooling performance, and poor temperature control, resulting in a poor user experience. Utility Model Content

[0003] Based on this, it is necessary to provide a battery and an electrical device that can improve the charge and discharge rate and enhance the heating or cooling effect to address the above problems.

[0004] A battery comprising a heat exchange base plate, at least two heat exchange side plate groups, and at least two battery cells, wherein all the heat exchange side plate groups and all the battery cells are mounted on the top side of the heat exchange base plate along the thickness direction of the heat exchange base plate, and all the heat exchange side plate groups are arranged along the length direction of the heat exchange base plate, and the heat exchange side plate groups correspond to the battery cells one by one;

[0005] The heat exchange side plate group includes at least two heat exchange side plates, all the heat exchange side plates of the same heat exchange side plate group are arranged at intervals along the width direction of the heat exchange bottom plate, and every two adjacent heat exchange side plates in the same heat exchange side plate group and the heat exchange bottom plate jointly define a heat exchange space;

[0006] The battery unit includes at least one battery module. In the corresponding heat exchange side plate group and the battery unit, the battery modules are installed one-to-one in the heat exchange space, and the battery modules exchange heat through the heat exchange side plates and the heat exchange bottom plate that define the heat exchange space in which they are located.

[0007] In some embodiments, the battery further includes a heat exchange pipe group, the heat exchange pipe group corresponding to each of the battery cells and the heat exchange side plate group, and the heat exchange pipe group is used to circulate heat exchange fluid into and out of all the heat exchange side plates of the corresponding heat exchange side plate group;

[0008] There are two heat exchange side plate groups, two battery units and two heat exchange pipe groups, and two heat exchange pipe groups are arranged between the two heat exchange side plate groups.

[0009] In some embodiments, the heat exchange side plate has a first flow channel therein, and the first flow channel is used for allowing the heat exchange fluid to flow; the heat exchange side plates in the same heat exchange side plate group are arranged in pairs to form a heat exchange side plate unit;

[0010] The heat exchange pipe group includes a liquid inlet pipe unit and a liquid return pipe unit, and the liquid inlet pipe unit and the liquid return pipe unit are in one-to-one correspondence with the heat exchange side plate unit;

[0011] The liquid inlet pipe unit includes a connected liquid inlet pipe and a liquid distribution pipe, and the opposite ends of the liquid distribution pipe are respectively connected to the liquid inlets of the two first flow channels in the corresponding heat exchange side plate units; the liquid return pipe unit includes a connected liquid return pipe and a liquid collection pipe, and the opposite ends of the liquid collection pipe are respectively connected to the liquid outlets of the two first flow channels in the corresponding heat exchange side plate units.

[0012] In some embodiments, the heat exchange bottom plate has a second flow channel therein, and the second flow channel is used for allowing the heat exchange fluid to flow;

[0013] In the liquid inlet pipe unit and the liquid return pipe unit corresponding to the same heat exchange side plate unit, the liquid inlet pipe and the liquid return pipe are both connected to the second flow channel, and in the flow direction of the heat exchange fluid in the second flow channel, the position where the liquid inlet pipe is connected to the second flow channel is located upstream of the position where the liquid return pipe is connected to the second flow channel.

[0014] In some embodiments, it further comprises a water inlet joint and a water outlet joint, wherein the water inlet joint and the water outlet joint are arranged on the heat exchange bottom plate and are both communicated with the second flow channel;

[0015] The water inlet joint and the water outlet joint are located on the side of one of the heat exchange side plate groups facing away from the other heat exchange side plate group, and the water inlet joint and the water outlet joint are arranged at opposite ends of the heat exchange bottom plate along the width direction of the heat exchange bottom plate.

[0016] In some embodiments, in the same heat exchange pipe group, the orthographic projections of all the liquid inlet pipes in the width direction of the heat exchange bottom plate completely overlap, the orthographic projections of all the liquid distribution pipes in the width direction of the heat exchange bottom plate completely overlap, the orthographic projections of all the liquid return pipes in the width direction of the heat exchange bottom plate completely overlap, and the orthographic projections of all the liquid collection pipes in the width direction of the heat exchange bottom plate completely overlap; and / or

[0017] In the liquid inlet pipe unit and the liquid return pipe unit connected to the same heat exchange side plate unit, the orthographic projections of the liquid distribution pipe and the liquid collection pipe in the thickness direction of the heat exchange bottom plate completely overlap.

[0018] In some embodiments, in the liquid inlet pipe unit, the liquid inlet pipe is located on the side of the liquid distribution pipe facing the heat exchange side plate connected thereto; in the liquid return pipe unit, the liquid return pipe is located on the side of the liquid collection pipe facing the heat exchange side plate connected thereto.

[0019] In some embodiments, the battery module is connected to the heat exchange side plates and the heat exchange bottom plate that define the heat exchange space in which the battery module is located through thermal conductive adhesive.

[0020] In some embodiments, the battery module is detachably connected to the heat exchange base plate.

[0021] An electrical device comprising the battery as described in any one of the above embodiments.

[0022] In the above-mentioned batteries and electrical devices, every two adjacent heat exchange side plates in the same heat exchange side plate group and the heat exchange bottom plate jointly define a heat exchange space, and the battery modules are installed in the heat exchange space in a one-to-one correspondence, and the battery modules exchange heat through the heat exchange side plates and the heat exchange bottom plate that define the heat exchange space in which they are located. In this way, the heat exchange bottom plate can be located at the bottom of the battery module and heat or cool the battery module, and the two heat exchange side plates adjacent to the battery module can be located on both sides of the battery module and heat or cool the battery module, thereby achieving heating or cooling of the battery module. This design increases the heat exchange area of ​​the battery module, is conducive to rapid heating or cooling of the battery module, has better heating and cooling effects, good temperature control performance, and high user experience. In addition, by providing at least two battery cells, the battery has a high energy storage capacity, a long battery life, and a high charge and discharge rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a battery in one embodiment of the present application;

[0024] Figure 2 for Figure 1 An enlarged schematic diagram of a local structure A in the battery shown;

[0025] Figure 3 for Figure 1 a top view of the battery shown;

[0026] Figure 4 for Figure 3 An enlarged schematic diagram of a local structure B in the battery shown;

[0027] Figure 5 for Figure 1 The schematic diagram of the structure of the battery shown is after removing one battery unit, heat exchange side plate group and heat exchange pipe group;

[0028] Figure 6 for Figure 5 An enlarged schematic diagram of a local structure C in the battery shown;

[0029] Figure 7 for Figure 1 a front view of the battery shown;

[0030] Figure 8 for Figure 7 Right side view of the battery shown.

[0031] Figure Number:

[0032] 100. Battery;

[0033] 10. Heat exchange bottom plate; 20. Heat exchange side plate group; 30. Battery unit; 40. Heat exchange pipe group; 50. Water inlet joint; 60. Water outlet joint; 70. Thermal conductive adhesive;

[0034] 21, heat exchange side plate unit; 211, heat exchange side plate; 211a, first heat exchange side plate; 211b, second heat exchange side plate; 211c, third heat exchange side plate; 211d, fourth heat exchange side plate;

[0035] 31. Battery module; 311. End plate; 312. Battery row; 312a. Battery cell;

[0036] 41. Liquid inlet pipe unit; 411. Liquid inlet pipe; 412. Liquid distribution pipe; 42. Liquid return pipe unit; 421. Liquid return pipe; 422. Liquid collection pipe;

[0037] X, length direction; Y, width direction; Z, thickness direction. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it 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. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that 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 an intermediate 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 an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] Currently, market developments indicate that batteries are increasingly being used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. As battery applications continue to expand, market demand is also growing.

[0045] Taking batteries used in electric vehicles, such as commercial vehicles, as an example, the battery charge and discharge rates in existing mainstream commercial vehicles are low, and the heating or cooling effects are poor, and the temperature control performance is poor, resulting in a poor user experience.

[0046] See also Figures 1 to 4 ,as well as Figure 7 In order to alleviate the above-mentioned problems, the present application provides a battery 100, which includes a heat exchange base plate 10, at least two heat exchange side plate groups 20, and at least two battery cells 30. All heat exchange side plate groups 20 and all battery cells 30 are installed on the top side of the heat exchange base plate 10 along the thickness direction Z of the heat exchange base plate 10. All heat exchange side plate groups 20 are arranged along the length direction X of the heat exchange base plate 10, and the heat exchange side plate groups 20 correspond one-to-one to the battery cells 30. The heat exchange side plate group 20 includes at least two heat exchange side plates 211. All heat exchange side plates 211 of the same heat exchange side plate group 20 are arranged at intervals along the width direction Y of the heat exchange base plate 10, and each adjacent two heat exchange side plates 211 in the same heat exchange side plate group 20 and the heat exchange base plate 10 jointly define a heat exchange space. The battery unit 30 includes at least one battery module 31. In the corresponding heat exchange side plate group 20 and the battery unit 30, the battery modules 31 are installed one by one in the heat exchange space, and the battery modules 31 exchange heat through the heat exchange side plates 211 and the heat exchange bottom plate 10 that define the heat exchange space in which they are located.

[0047] Among them, a first flow channel is provided in the heat exchange side plate 211, and a second flow channel is provided in the heat exchange bottom plate 10, and the first flow channel and the second flow channel are both used for the flow of heat exchange fluid. The heat exchange fluid can be water, alcohol or other fluids. Under low temperature conditions, such as working conditions in winter, the temperature of the heat exchange fluid is higher than the temperature of the battery module 31, and the heat exchange fluid can provide heat to the battery module 31 to heat the battery module 31. Under high temperature conditions, such as working conditions in summer, the temperature of the heat exchange fluid is lower than the temperature of the battery module 31, and the heat exchange fluid can absorb the heat of the battery module 31 to cool the battery module 31, thereby realizing the control of the temperature of the battery module 31, and the temperature changes evenly and the temperature control effect is good.

[0048] Each adjacent two heat exchange side plates 211 in the same heat exchange side plate group 20 and the heat exchange bottom plate 10 jointly define a heat exchange space, and the battery modules 31 are installed in the heat exchange space in a one-to-one correspondence, and the battery modules 31 exchange heat through the heat exchange side plates 211 and the heat exchange bottom plate 10 that define the heat exchange space in which they are located. In this way, the heat exchange bottom plate 10 can be located at the bottom of the battery module 31 and heat or cool the battery module 31, and the two heat exchange side plates 211 adjacent to the battery module 31 can be located on both sides of the battery module 31 and heat or cool the battery module 31, thereby achieving heating or cooling of the battery module 31. This design increases the heat exchange area of ​​the battery module 31, is conducive to rapid heating or cooling of the battery module 31, has better heating and cooling effects, good temperature control performance, and high user experience.

[0049] Furthermore, by providing at least two battery cells 30, the battery 100 has a high energy storage capacity, a long battery life, and a high charge and discharge rate. Furthermore, by integrating at least two battery cells 30 into a single battery 100, all battery cells 30 in the battery 100 can share some mechanical components (e.g., the housing), electrical components (e.g., the temperature sensor), and thermal management system of the same battery 100. While meeting the requirements for large energy storage capacity, the use of mechanical components, electrical components, and thermal management systems can be reduced, resulting in a high level of integration.

[0050] See also Figures 1 to 6 In some embodiments, the battery 100 further includes a heat exchange pipe group 40. The heat exchange pipe group 40 corresponds one-to-one with each battery cell 30 and heat exchange side plate group 20. The heat exchange pipe group 40 is used to circulate heat exchange fluid into and out of all heat exchange side plates 211 of the corresponding heat exchange side plate group 20, allowing the heat exchange fluid to circulate within the heat exchange bottom plate 10 and each heat exchange side plate 211, achieving a better heating or cooling effect. There are two heat exchange side plate groups 20, two battery cells 30, and two heat exchange pipe groups 40, and the two heat exchange pipe groups 40 are disposed between the two heat exchange side plate groups 20. With this design, the battery cells 30, the heat exchange side plate group 20, and the heat exchange pipe group 40 are compactly arranged, which is conducive to improving space utilization.

[0051] In some embodiments, the heat exchange side plates 211 in the same heat exchange side plate group 20 are arranged in pairs and form a heat exchange side plate unit 21; the heat exchange pipe group 40 includes a liquid inlet pipe unit 41 and a liquid return pipe unit 42, and the liquid inlet pipe unit 41 and the liquid return pipe unit 42 both correspond to the heat exchange side plate unit 21 one by one; the liquid inlet pipe unit 41 includes a connected liquid inlet pipe 411 and a liquid distribution pipe 412, and the opposite ends of the liquid distribution pipe 412 are respectively connected to the liquid inlets of the two first flow channels in the corresponding heat exchange side plate unit 21; the liquid return pipe unit 42 includes a connected liquid return pipe 421 and a liquid collection pipe 422, and the opposite ends of the liquid collection pipe 422 are respectively connected to the liquid outlets of the two first flow channels in the corresponding heat exchange side plate unit 21.

[0052] by Figure 4 The middle battery unit 30 includes three battery modules 31, and the heat exchange side plate group 20 includes four heat exchange side plates 211. The four heat exchange side plates 211 and the heat exchange bottom plate 10 form three heat exchange spaces, and a battery module 31 is set in each heat exchange space. In this embodiment, the heat exchange pipe group 40 includes two liquid inlet pipe units 41 and two liquid return pipe units 42. The four heat exchange side plates 211 are defined as the first heat exchange side plate 211a, the second heat exchange side plate 211b, the third heat exchange side plate 211c, and the fourth heat exchange side plate 211d. The first heat exchange side plate 211a and the second heat exchange side plate 211b form a heat exchange side plate unit 21, and the third heat exchange side plate 211c and the fourth heat exchange side plate 211d form another heat exchange side plate unit 21. One end of the liquid distribution pipe 412 of one of the liquid inlet pipe units 41 is connected to the liquid inlet of the first flow channel in the first heat exchange side plate 211a, the other end of the liquid distribution pipe 412 of one of the liquid inlet pipe units 41 is connected to the liquid inlet of the first flow channel in the second heat exchange side plate 211b, one end of the return pipe 421 of one of the return pipe units 42 is connected to the liquid outlet of the first flow channel in the first heat exchange side plate 211a, and the other end of the return pipe 421 of one of the return pipe units 42 is connected to the return liquid port of the first flow channel in the second heat exchange side plate 211b. One end of the liquid distribution pipe 412 of another liquid inlet pipe unit 41 is connected to the liquid inlet of the first flow channel in the third heat exchange side plate 211c, the other end of the liquid distribution pipe 412 of another liquid inlet pipe unit 41 is connected to the liquid inlet of the first flow channel in the fourth heat exchange side plate 211d, one end of the return pipe 421 of another liquid return pipe unit 42 is connected to the liquid outlet of the first flow channel in the third heat exchange side plate 211c, and the other end of the return pipe 421 of another liquid return pipe unit 42 is connected to the return liquid port of the first flow channel in the fourth heat exchange side plate 211d.

[0053] During actual operation, the heat exchange fluid flows in from the liquid inlet pipe 411 and is diverted to the first flow channels of the two heat exchange side plates 211 connected to the liquid diversion pipe 412 at the liquid diversion pipe 412, and then absorbs or releases heat in the two heat exchange side plates 211 and flows out from the first flow channels of the two heat exchange side plates 211, and then converges to the liquid confluence pipe 422, and finally flows out through the return liquid pipe 421.

[0054] In this embodiment, a liquid inlet pipe unit 41 and a liquid return pipe unit 42 can be used to circulate the heat exchange fluid to and output from two adjacent heat exchange side plates 211 at the same time, reducing the design of the pipes and the space occupied by the pipes, achieving high integration, great space utilization, and reduced manufacturing costs.

[0055] In some embodiments, in the liquid inlet pipe unit 41 and the liquid return pipe unit 42 corresponding to the same heat exchange side plate unit 21, the liquid inlet pipe 411 and the liquid return pipe 421 are both connected to the second flow channel, and in the flow direction of the heat exchange fluid in the second flow channel, the position where the liquid inlet pipe 411 is connected to the second flow channel is located upstream of the position where the return pipe 421 is connected to the second flow channel.

[0056] Taking the case of the battery 100 operating at high temperature as an example, in the direction of flow of the second flow channel, the heat exchange time of the heat exchange fluid flowing through the upstream position is shorter than the heat exchange time of the heat exchange fluid flowing through the downstream position. Therefore, the temperature of the heat exchange fluid at the upstream position is lower than the temperature of the heat exchange fluid at the downstream position. In this way, the heat exchange fluid at the upstream position is introduced into the first flow channel of the heat exchange side plate 211 through the liquid inlet pipe 411. The heat exchange fluid still has a relatively low temperature and can cool the battery module 31 from the side of the battery module 31, achieving a better cooling effect. Afterwards, the first heat exchange fluid flows back into the second flow channel through the return pipe 421, merges with the heat exchange fluid in the second flow channel, and continues to flow.

[0057] The heat exchange fluid in the heat exchange bottom plate 10 is passed into the heat exchange side plate 211 by using the liquid inlet pipe unit 41 and the liquid return pipe unit 42, which can simplify the pipe design and reduce the flow path of the heat exchange fluid, thereby reducing manufacturing costs and improving space utilization while also having a better heat exchange effect.

[0058] Of course, in some other embodiments, the liquid inlet pipe 411 and the liquid return pipe 421 can also be independent of the second flow channel. Specifically, the liquid inlet pipe 411 and the liquid return pipe 421 are connected to an external heat exchange fluid source, and the heat exchange fluid source directly inputs the heat exchange fluid into the first flow channel through the liquid inlet pipe 411, and after heat exchange, it directly returns to the heat exchange fluid source through the liquid return pipe 421.

[0059] See also Figure 7 and Figure 8In some embodiments, the battery 100 further includes a water inlet connector 50 and a water outlet connector 60 . The water inlet connector 50 and the water outlet connector 60 are disposed on the heat exchange base plate 10 and are both connected to the second flow channel.

[0060] The water inlet connector 50 and the water outlet connector 60 are both connected to an external heat exchange fluid source. The heat exchange fluid source inputs the heat exchange fluid into the second flow channel through the water inlet connector 50. After the heat exchange fluid exchanges heat within the heat exchange base plate 10, it returns to the heat exchange fluid source through the water outlet connector 60. The design of the water inlet connector 50 and the water outlet connector 60 enables the heat exchange fluid to circulate between the heat exchange base plate 10 and the heat exchange fluid source, achieving a good heat exchange effect.

[0061] Furthermore, in some embodiments, the water inlet joint 50 and the water outlet joint 60 are located on the side of one heat exchange side plate group 20 facing away from the other heat exchange side plate group 20, and the water inlet joint 50 and the water outlet joint 60 are arranged at opposite ends of the heat exchange base plate 10 along the width direction Y of the heat exchange base plate 10, so that the installation of the water inlet joint 50 and the water outlet joint 60 does not interfere with the installation of the battery unit 30 and the heat exchange side plate group 20, and the installation is convenient.

[0062] See also Figures 1 to 7 In some embodiments, in the same heat exchange pipe group 40, the orthographic projections of all liquid inlet pipes 411 in the width direction Y of the heat exchange base plate 10 completely overlap, the orthographic projections of all liquid distribution pipes 412 in the width direction Y of the heat exchange base plate 10 completely overlap, the orthographic projections of all liquid return pipes 421 in the width direction Y of the heat exchange base plate 10 completely overlap, and the orthographic projections of all liquid manifolds 422 in the width direction Y of the heat exchange base plate 10 completely overlap. Furthermore, in the liquid inlet pipe unit 41 and the liquid return pipe unit 42 connected to the same heat exchange side plate unit 21, the orthographic projections of the liquid distribution pipes 412 and the liquid manifolds 422 in the thickness direction Z of the heat exchange base plate 10 completely overlap. In this way, the heat exchange pipe group 40 occupies a small space and has high space utilization.

[0063] In some embodiments, in the liquid inlet pipe unit 41, the liquid inlet pipe 411 is located on the side of the liquid distribution pipe 412 facing the heat exchange side plate 211 connected thereto; in the liquid return pipe unit 42, the liquid return pipe 421 is located on the side of the liquid collection pipe 422 facing the heat exchange side plate 211 connected thereto. This design can improve the compactness of the layout of the liquid inlet pipe unit 41 and the liquid return pipe unit 42, thereby increasing the space utilization of the battery 100.

[0064] In some embodiments, the battery module 31 is connected to the heat exchange side plate 211 and the heat exchange base plate 10 that define the heat exchange space within it via thermally conductive adhesive 70. That is, thermally conductive adhesive 70 is provided between the battery module 31 and the heat exchange base plate 10, as well as between the battery module 31 and the adjacent heat exchange side plate 211. The thermally conductive adhesive 70 has a heat-conducting function, enabling heat transfer between the heat exchange base plate 10 and the battery module 31, and between the heat exchange side plate 211 and the battery module 31, thereby heating or cooling the battery module 31. In addition, the thermal conductive adhesive 70 can also firmly bond the heat exchange base plate 10 and the battery module 31, as well as the heat exchange side plate 211 and the battery module 31, so as to realize the connection between the battery module 31, the heat exchange base plate 10 and the heat exchange side plate 211. In this way, the gap between the battery module 31 and the heat exchange base plate 10 and the heat exchange side plate 211 can be basically eliminated, so that the battery module 31 has a certain thermal insulation effect, and can reduce the temperature drop rate of the battery module 31 under low temperature conditions.

[0065] See also Figure 4 and Figure 8 In some embodiments, the battery module 31 is detachably connected to the heat exchange base plate 10. Specifically, the battery module 31 includes a battery row 312 and two end plates 311. The battery row 312 includes a plurality of battery cells 312a. All battery cells 312a in the battery row 312 are closely arranged along the longitudinal direction X of the heat exchange base plate 10. The two end plates 311 are spaced apart along the longitudinal direction X of the heat exchange base plate 10 on opposite sides of the battery row 312 and clamp the battery row 312. The two end plates 311 are detachably connected to the heat exchange base plate 10 via detachable parts such as screws, bolts, and pins, thereby facilitating the disassembly and assembly of the battery cells 30.

[0066] The present application also provides an electrical device, which includes the battery 100 as described in any of the above embodiments, and the battery 100 is used to provide power to the electrical device. The electrical device in the present application has the effects described in any of the above embodiments, so it will not be repeated here.

[0067] The electrical devices may include, but are not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery-powered vehicles, electric cars, ships, spacecraft, etc. Electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0068] It should be understood that the technical solutions described in the embodiments of the present application are not limited to being applicable to the electrical devices described above.

[0069] In the above-mentioned battery 100 and electrical device, each adjacent two heat exchange side plates 211 in the same heat exchange side plate group 20 and the heat exchange bottom plate 10 jointly define a heat exchange space, and the battery modules 31 are installed in a one-to-one correspondence within the heat exchange space, and the battery modules 31 exchange heat through the heat exchange side plates 211 and the heat exchange bottom plate 10 that define the heat exchange space in which they are located. In this way, the heat exchange bottom plate 10 can be located at the bottom of the battery module 31 and heat or cool the battery module 31, and the two heat exchange side plates 211 adjacent to the battery module 31 can be located on both sides of the battery module 31 and heat or cool the battery module 31, thereby achieving heating or cooling of the battery module 31. This design increases the heat exchange area of ​​the battery module 31, is conducive to rapid heating or cooling of the battery module 31, has better heating and cooling effects, good temperature control performance, and a high user experience. In addition, by providing at least two battery cells 30, the battery 100 has a high energy storage capacity, a long battery life, and a high charge and discharge rate.

[0070] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0071] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A battery, characterized in that: The battery comprises a heat exchange bottom plate (10), at least two heat exchange side plate groups (20) and at least two battery units (30), all the heat exchange side plate groups (20) and all the battery units (30) are installed on the top side of the heat exchange bottom plate (10) along the thickness direction (Z) of the heat exchange bottom plate (10), all the heat exchange side plate groups (20) are arranged along the length direction (X) of the heat exchange bottom plate (10), and the heat exchange side plate groups (20) correspond to the battery units (30) one by one; The heat exchange side plate group (20) comprises at least two heat exchange side plates (211), all the heat exchange side plates (211) of the same heat exchange side plate group (20) are arranged at intervals along the width direction (Y) of the heat exchange bottom plate (10), and every two adjacent heat exchange side plates (211) in the same heat exchange side plate group (20) and the heat exchange bottom plate (10) jointly define a heat exchange space; The battery unit (30) includes at least one battery module (31). In the corresponding heat exchange side plate group (20) and the battery unit (30), the battery modules (31) are installed in the heat exchange space in a one-to-one correspondence, and the battery modules (31) exchange heat through the heat exchange side plate (211) and the heat exchange bottom plate (10) that define the heat exchange space in which they are located.

2. The battery according to claim 1, characterized in that The battery further comprises a heat exchange pipe group (40), wherein the heat exchange pipe group (40) corresponds one-to-one to the battery unit (30) and the heat exchange side plate group (20), and the heat exchange pipe group (40) is used to circulate heat exchange fluid into and out of all the heat exchange side plates (211) of the corresponding heat exchange side plate group (20); There are two heat exchange side plate groups (20), two battery units (30) and two heat exchange pipe groups (40), and the two heat exchange pipe groups (40) are arranged between the two heat exchange side plate groups (20).

3. The battery according to claim 2, characterized in that The heat exchange side plate (211) has a first flow channel therein, and the first flow channel is used for allowing the heat exchange fluid to flow; the heat exchange side plates (211) in the same heat exchange side plate group (20) are arranged in pairs to form a heat exchange side plate unit (21); The heat exchange pipe group (40) includes a liquid inlet pipe unit (41) and a liquid return pipe unit (42), and the liquid inlet pipe unit (41) and the liquid return pipe unit (42) both correspond to the heat exchange side plate unit (21) one by one; The liquid inlet pipe unit (41) comprises a liquid inlet pipe (411) and a liquid distribution pipe (412) that are connected to each other, and the opposite ends of the liquid distribution pipe (412) are respectively connected to the liquid inlets of the two first flow channels in the corresponding heat exchange side plate unit (21); the liquid return pipe unit (42) comprises a liquid return pipe (421) and a liquid collection pipe (422) that are connected to each other, and the opposite ends of the liquid collection pipe (422) are respectively connected to the liquid outlets of the two first flow channels in the corresponding heat exchange side plate unit (21).

4. The battery according to claim 3, characterized in that The heat exchange bottom plate (10) has a second flow channel therein, and the second flow channel is used for allowing the heat exchange fluid to flow; In the liquid inlet pipe unit (41) and the liquid return pipe unit (42) corresponding to the same heat exchange side plate unit (21), the liquid inlet pipe (411) and the liquid return pipe (421) are both connected to the second flow channel, and in the flow direction of the heat exchange fluid in the second flow channel, the position where the liquid inlet pipe (411) is connected to the second flow channel is located upstream of the position where the liquid return pipe (421) is connected to the second flow channel.

5. The battery according to claim 4, characterized in that It also includes a water inlet joint (50) and a water outlet joint (60), wherein the water inlet joint (50) and the water outlet joint (60) are arranged on the heat exchange bottom plate (10) and are both in communication with the second flow channel; The water inlet joint (50) and the water outlet joint (60) are located on a side of one of the heat exchange side plate groups (20) facing away from the other heat exchange side plate group (20), and the water inlet joint (50) and the water outlet joint (60) are arranged at opposite ends of the heat exchange bottom plate (10) along the width direction (Y) of the heat exchange bottom plate (10).

6. The battery according to claim 3, characterized in that In the same heat exchange pipe group (40), the orthographic projections of all the liquid inlet pipes (411) in the width direction (Y) of the heat exchange base plate (10) completely overlap, the orthographic projections of all the liquid distribution pipes (412) in the width direction (Y) of the heat exchange base plate (10) completely overlap, the orthographic projections of all the liquid return pipes (421) in the width direction (Y) of the heat exchange base plate (10) completely overlap, and the orthographic projections of all the liquid collection pipes (422) in the width direction (Y) of the heat exchange base plate (10) completely overlap; and / or In the liquid inlet pipe unit (41) and the liquid return pipe unit (42) connected to the same heat exchange side plate unit (21), the orthographic projections of the liquid distribution pipe (412) and the liquid collection pipe (422) in the thickness direction (Z) of the heat exchange bottom plate (10) completely overlap.

7. The battery according to claim 3, characterized in that In the liquid inlet pipe unit (41), the liquid inlet pipe (411) is located on the side of the liquid distribution pipe (412) facing the heat exchange side plate (211) connected thereto; and in the liquid return pipe unit (42), the liquid return pipe (421) is located on the side of the liquid collection pipe (422) facing the heat exchange side plate (211) connected thereto.

8. The battery according to claim 1, characterized in that The battery module (31) is connected to the heat exchange side plate (211) and the heat exchange bottom plate (10) defining the heat exchange space in which the battery module is located via a heat conductive adhesive (70).

9. The battery according to claim 1, characterized in that The battery module (31) is detachably connected to the heat exchange base plate (10).

10. An electrical device, characterized in that: The electrical device comprises the battery according to any one of claims 1 to 9.

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