Battery and vehicle

Abstract

A battery (10) and a vehicle (1). The battery (10) comprises a case (200), battery cells (100), and a heat exchange assembly (300). The case (200) is used for accommodating the battery cells (100). The case (200) comprises a cover (210). The cover (210) comprises a cover plate (211). The cover plate (211) comprises a first reinforced part (2111) and at least two first plate bodies (2112). The first reinforced part (2111) is connected between two adjacent first plate bodies (2112) and protrudes from the surfaces of the first plate bodies (2112) facing away from the battery cells (100). The surface of the first reinforced part (2111) facing the battery cells (100) is recessed to form a first accommodating recess (21111). The heat exchange assembly (300) is at least partially embedded in the first accommodating recess (21111) and is in thermally conductive connection with the battery cells (100).

Description

Batteries and vehicles

[0001] Cross-references

[0002] This application refers to Chinese patent application No. 202410137380.7, filed on January 31, 2024, entitled “Batteries and Vehicles,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the technical field of electrical equipment, and in particular to a battery and a vehicle. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0005] A battery typically consists of a housing, battery cells, and a heat exchange assembly. The battery cells and heat exchange assembly are housed within the housing. The battery cells are used to provide and store electrical energy, while the heat exchange assembly, in contact with the battery cells, absorbs heat from them or transfers it to them, thereby regulating their temperature. In related art, to improve space utilization in electric vehicles, the housing's lid often serves as the vehicle's floor, with the heat exchange assembly typically integrated within the lid. This can be easily deformed by external forces, resulting in poor battery safety.

[0006] Summary of the Invention

[0007] The purpose of the embodiments of the present application is to provide a battery and a vehicle to solve the technical problem existing in the related art that the safety performance of the battery cannot be taken into account while improving the space utilization of the battery.

[0008] To achieve the above objectives, the technical solution adopted in this application is:

[0009] In a first aspect, a battery is provided, comprising a battery cell, a housing and a heat exchange assembly, wherein the housing is used to accommodate the battery cell, the housing comprises a cover, the cover is used to serve as at least a portion of a floor of a vehicle, the cover comprises a cover plate, the cover plate comprises a first reinforcement portion and at least two first plates, the first reinforcement portion is connected between two adjacent first plates and protrudes from a surface of the first plate facing away from the battery cell, and a first accommodating groove is recessed on a surface of the first reinforcement portion facing the battery cell; the heat exchange assembly is at least partially embedded in the first accommodating groove and is thermally conductively connected to the battery cell.

[0010] In the technical solution of the embodiment of the present application, the cover body includes a cover plate, the cover plate includes a first reinforcement portion and at least two first plates, the first reinforcement portion is connected between the two first plates, the first reinforcement portion protrudes from the surface of the first plate body facing away from the battery cell, and the surface of the first reinforcement portion facing the battery cell is recessed with a first receiving groove, and at least part of the structure of the heat exchange component is embedded in the first receiving groove. In this arrangement, since at least part of the structure of the heat exchange component is embedded in the first receiving groove, the heat exchange component and the cover body overlap in the height direction of the battery, and the heat exchange component and the cover body are highly compact in the height direction of the battery. The overall height of the heat exchange component and the cover plate can reach a minimum value, which is beneficial to improving the space utilization of the battery. On this basis, since the cover body serves as at least a part of the floor of the vehicle, the cover plate covers the outside of the heat exchange component, and the cover body can protect the heat exchange component and prevent the heat exchange component from being directly stepped on; and the first reinforcement portion can serve as a reinforcement rib to strengthen the structural strength of the cover body, so that the cover body can more effectively protect the heat exchange component, thereby reducing the risk of deformation of the heat exchange component, improving the safety performance of the battery, and achieving the effect of taking into account both space utilization and safety performance.

[0011] In some embodiments, the heat exchange assembly includes a plurality of heat exchange tubes, the number of the first reinforcement parts is multiple, the first reinforcement parts and the first plates are alternately arranged, and the multiple first accommodating grooves respectively accommodate a plurality of the heat exchange tubes.

[0012] In the technical solution of this embodiment, multiple heat exchange tubes can provide a larger heat exchange area, thereby improving the heat exchange efficiency between the heat exchange component and the battery cell; multiple first reinforcement parts can play the role of multiple reinforcement ribs, which can more effectively enhance the structural strength of the cover body, thereby enabling the cover body to more effectively protect the heat exchange component and improve the safety performance of the battery.

[0013] In some embodiments, the heat exchange assembly further includes a manifold connected to the same end of at least two of the heat exchange tubes.

[0014] In the technical solution of the embodiment of the present application, the manifold can realize the input and output of the heat exchange medium in the heat exchange tube, and can also distribute the flow of the heat exchange medium, so that the heat exchange tube can effectively exchange heat with the battery cell.

[0015] In some embodiments, the cover plate further includes a second reinforcement portion, the second reinforcement portion and the first reinforcement portion are arranged to intersect each other, and a second accommodating groove is recessed on a surface of the second reinforcement portion facing the battery cell, and the second accommodating groove is used to accommodate the manifold.

[0016] In the technical solution of the embodiment of the present application, the structure of the cover plate can be reinforced from two different directions through the intersecting arrangement of the first reinforcement part and the second reinforcement part, so that the cover plate can more effectively protect the heat exchange component, thereby improving the safety performance of the battery.

[0017] In some embodiments, the first reinforcement portion and the second reinforcement portion are perpendicular to each other. The first reinforcement portion and the second reinforcement portion can reinforce the structure of the cover plate in two mutually perpendicular directions, which helps the cover plate more effectively protect the heat exchange component. In addition, the first reinforcement portion and the second reinforcement portion are perpendicular to each other, which can facilitate the arrangement of mutually perpendicular heat exchange tubes and manifolds, and is conducive to arranging more pipes in a limited space, thereby increasing the heat exchange area and improving the heat exchange efficiency.

[0018] In some embodiments, the battery cell is connected to the first plate. In this way, the first plate can directly bear all or part of the weight of the battery cell, which can reduce the pulling of the battery cell on the heat exchange component, reduce the risk of the heat exchange component being deformed by tension, and improve the safety performance of the battery. Specifically, when the battery cell is not indirectly connected to the cover body through the heat exchange component, the entire weight of the battery cell will be directly transferred to the first plate, which can avoid the battery cell pulling the heat exchange component, thereby reducing the risk of deformation of the heat exchange component and improving the safety performance of the battery; and when the battery cell is indirectly connected to the cover body through the heat exchange component, part of the weight of the battery cell will also be directly transferred to the first plate, which can reduce the pulling of the battery cell on the heat exchange component, reduce the risk of deformation of the heat exchange component and improve the safety performance of the battery.

[0019] In some embodiments, the battery cells are connected to the heat exchange assembly, which facilitates full contact between the heat exchange assembly and the battery cells, thereby improving the heat exchange efficiency between the two.

[0020] In some embodiments, the heat exchange assembly is connected to the cover. With this arrangement, the battery cells are not only directly connected to the cover but also indirectly connected to the cover via the heat exchange assembly, allowing for more stable installation of the battery cells within the enclosure. Furthermore, compared to a situation where the battery cells are only indirectly connected to the cover via the heat exchange assembly, where the weight of the battery cells is fully loaded on the heat exchange assembly, the technical solution in the embodiments of this application places only a partial weight load on the heat exchange assembly, minimizing the chance of deformation of the heat exchange assembly. This ensures greater installation stability for the battery cells while minimizing deformation of the heat exchange assembly.

[0021] In some embodiments, a battery cell includes a housing and electrode terminals disposed on a wall of the housing, with the side of the housing facing away from the electrode terminals being connected to the first plate. This arrangement allows for the battery to be designed by simply reserving a predetermined space on the side of the battery cell facing away from the cover. This predetermined space can be used as both the bottom ball-striking space and the high-voltage space of the battery, thereby eliminating the need to separately provide the bottom ball-striking space and the high-voltage space within the housing, thereby improving battery space utilization.

[0022] In some embodiments, the battery cell further includes a pressure relief mechanism disposed on the side of the housing facing away from the cover. This arrangement allows for the battery to be designed by simply reserving a predetermined space on the side of the battery cell facing away from the cover. This predetermined space can be used simultaneously as the battery's bottom ball-striking space, high-voltage space, and pressure relief space. This avoids the need for separate bottom ball-striking space, high-voltage space, and pressure relief space within the housing, thereby improving battery space utilization.

[0023] In some embodiments, the battery further includes a mounting beam connected to a surface of the cover plate facing away from the battery cell, and the mounting beam is used to connect to a vehicle frame.

[0024] Compared with connecting the frame through the edge of the cover, in the technical solution of the embodiment of the present application, a mounting beam is set on the surface of the cover plate facing away from the battery cell, and the frame is connected through the mounting beam. The center of gravity of the battery is closer to the mounting point of the battery, the path for the gravity of the battery to be transmitted to the frame is shorter, and the torque generated by the gravity of the battery is smaller. In this way, the thickness of the cover can be designed to be thinner, which is conducive to the lightweight design of the battery; and the mounting beam is fixed on the surface of the cover plate facing away from the battery cell, which can serve as a reinforcement rib of the cover plate to enhance the structural strength of the cover plate, thereby enabling the cover plate to effectively protect the heat exchange component and improve the safety performance of the battery.

[0025] In some embodiments, the battery further includes a seat beam connected to the cover plate.

[0026] In the technical solution of the embodiment of the present application, the seat beam is fixed on the surface of the cover plate facing away from the battery cell, which can serve as a reinforcement rib of the cover plate to enhance the structural strength of the cover plate, thereby enabling the cover plate to effectively protect the heat exchange component and improve the safety performance of the battery.

[0027] In some embodiments, the seat beam is used to connect to the frame of the vehicle.

[0028] In the technical solution of the embodiment of the present application, the seat beam can transfer the weight of the vehicle occupants directly to the frame. In this way, the pressure on the cover plate can be reduced, and the pressure transferred from the cover plate to the heat exchange component can be reduced, thereby reducing the risk of deformation of the heat exchange component and improving the safety performance of the battery.

[0029] In some embodiments, the battery further includes a first expansion beam and a second expansion beam, the first expansion beam and the second expansion beam are connected to a side of the cover plate facing the battery cell, and the battery cell is disposed between the first expansion beam and the second expansion beam.

[0030] In the technical solution of the embodiment of the present application, the first expansion beam and the second expansion beam can resist the expansion force of the battery cell, thereby improving the safety performance of the battery; and the first expansion beam and the second expansion beam are fixedly connected to the cover body, which can enhance the structural strength of the cover body, so that the cover body can more effectively protect the heat exchange component and the battery cell, thereby further improving the safety performance of the battery.

[0031] In some embodiments, there are multiple battery cells, and the battery further includes a vapor chamber, which is disposed between the multiple battery cells and the heat exchange assembly.

[0032] In the technical solution of the embodiment of the present application, the heat spreader can evenly disperse the heat generated by multiple battery cells, and try to avoid the generation of hot spots inside the battery. The presence of the heat spreader can also provide a larger heat conduction area and a better heat dissipation path, increase the heat transfer speed, and improve the heat exchange efficiency between the heat exchange component and the battery cells.

[0033] In some embodiments, the battery cell also includes a bottom guard plate, and the bottom guard plate and the cover body together form a accommodating cavity that can accommodate the heat exchange component and the battery cell, which can protect the battery cell and the heat exchange component and minimize external impact on the battery cell and the heat exchange component.

[0034] In some embodiments, the cover is a steel cover. The steel cover has a high structural strength and can more effectively absorb and disperse external forces, reduce the pressure on the heat exchange component, and thereby reduce the risk of deformation of the heat exchange component and improve the safety performance of the battery.

[0035] In some embodiments, the heat exchange component is an aluminum heat exchanger, which is easy to process and shape, has good thermal conductivity and is light in weight. It can reduce the processing cost of the heat exchange component, improve the heat exchange efficiency, and is conducive to the lightweight design of the battery.

[0036] In a second aspect, a vehicle is provided, comprising the battery described in the first aspect.

[0037] In the technical solution of the embodiment of the present application, the vehicle includes the battery provided in the embodiment of the first aspect above, so that the vehicle also has the technical effects corresponding to the aforementioned battery, which will not be repeated here.

[0038] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0040] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0041] FIG2 is a schematic diagram of an exploded structure of a battery provided in some embodiments of the present application;

[0042] FIG3 is a schematic structural diagram of a battery cover, a mounting beam, a first fastener, and a seat beam provided in some embodiments of the present application;

[0043] FIG4 is a schematic structural diagram of a battery cover provided in some embodiments of the present application;

[0044] FIG5 is a schematic structural diagram of a heat exchange assembly of a battery provided in some embodiments of the present application;

[0045] FIG6 is a schematic top view of a battery provided in some embodiments of the present application;

[0046] FIG7 is a cross-sectional view of a battery provided by some embodiments of the present application along line AA;

[0047] FIG8 is an enlarged view of point C of the battery shown in FIG7 ;

[0048] FIG9 is a cross-sectional view of a battery provided by some embodiments of the present application along line BB;

[0049] FIG10 is an enlarged view of point D of the battery shown in FIG9 ;

[0050] FIG11 is a schematic diagram of an exploded structure of a battery cover, a heat exchange assembly, a first expansion beam, and a second expansion beam provided in some embodiments of the present application;

[0051] FIG12 is a schematic diagram of the exploded structure of the battery cover, heat exchange assembly, heat spreader, first expansion beam, and second expansion beam provided in some embodiments of the present application.

[0052] In the figures, the following reference numerals are used: 1, vehicle; 10, battery; 100, battery cell; 200, housing; 210, cover; 211, cover plate; 2111, first reinforcement portion; 21111, first accommodating groove; 2112, first plate body; 2113, second reinforcement portion; 21131, second accommodating groove; 2114, second plate body; 212, cover side wall; 220, bottom guard plate; 221, guard plate bottom wall; 222, guard plate side wall; 300, heat exchange assembly; 310, heat exchange tube; 320, manifold; 321, liquid inlet; 322, liquid outlet; 400, mounting beam; 410, first fastener; 500, seat beam; 510, second through hole; 600, first expansion beam; 601, mounting groove; 610, third fastener; 700, second expansion beam; 800, heat spreader; 20, frame; 30, controller; 40, motor. DETAILED DESCRIPTION

[0053] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0054] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this 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 cannot be understood as a limitation on this application.

[0055] 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 one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0056] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout this specification, not all references are to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0057] As the vehicle's power source, the battery is one of its most critical components. Battery safety is crucial to the vehicle and is a key performance indicator. Furthermore, battery space utilization significantly impacts battery life and is also a key performance indicator. Therefore, to ensure vehicle performance and safety, battery design must be optimized by comprehensively considering factors such as battery safety and space utilization.

[0058] A battery typically consists of a housing, battery cells, and a heat exchange assembly. The housing houses the battery cells, while the heat exchange assembly, in contact with the cells, absorbs heat from them or transfers it to them, thereby regulating their temperature. In related art, to improve overall vehicle space utilization, the housing's cover often serves as the vehicle's floor. This eliminates the gap between the battery cover and the vehicle's floor, increasing the assembly space for battery installation in the vehicle's height direction.

[0059] In the related art, in order to improve the space utilization of the battery itself, there is also a situation where the heat exchange component is integrated into the cover body, that is, a heat exchange flow channel is directly formed on the cover body. However, when the cover body is used as a vehicle floor, the heat exchange flow channel is integrated into the cover body, and the heat exchange flow channel needs to directly withstand the stepping force of the driver and passengers. At the same time, since the structural strength of the cover body integrated with the heat exchange flow channel is usually low, the heat exchange flow channel is prone to deformation or rupture when subjected to the stepping force of the driver and passengers, resulting in an increase in the space utilization of the battery while reducing the safety performance of the battery.

[0060] To improve battery space utilization while also ensuring battery safety, the present application provides a battery comprising a battery cell, a heat exchange assembly, and a housing for accommodating the battery cell. The housing comprises a cover, the cover comprising a cover plate serving as at least a portion of a vehicle floor, the cover plate comprising a first reinforcement portion and at least two first plates, the first reinforcement portion being connected between two adjacent first plates, the first reinforcement portion protruding from a surface of the first plate facing away from the battery cell, and a first receiving groove being recessed on a surface of the first reinforcement portion facing the battery cell, the heat exchange assembly being at least partially embedded within the first receiving groove of the first reinforcement portion. Because the heat exchange assembly is at least partially embedded within the first receiving groove, the cover and the heat exchange assembly overlap in the height direction of the battery, resulting in a high degree of compactness in the height direction of the battery, thereby minimizing the height of the heat exchange assembly and the cover, and thereby achieving high space utilization for the battery. Furthermore, the first reinforcement portion enhances the structural strength of the cover, enabling the cover to effectively protect the heat exchange assembly, thereby reducing the risk of deformation of the heat exchange assembly, and thus achieving a balanced balance between space utilization and safety performance.

[0061] The technical solutions described in the embodiments of the present application can be applied to vehicles, such as fuel vehicles, gas vehicles or new energy vehicles, wherein new energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc. The technical solutions described in the embodiments of the present application can also be applied to other electrical devices that use batteries, such as mobile phones, portable devices, laptops, ships, spacecraft, electric toys and electric tools, etc. Among them, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Electric toys include fixed or mobile electric toys, etc. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, etc.

[0062] Please refer to Figure 1, which is a structural schematic diagram of the vehicle 1 provided in an embodiment of the present application. The vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 10 is provided inside the vehicle 1. The battery 10 can be provided at the bottom, head or tail of the vehicle 1, and the battery 10 can be installed on the vehicle 1 and the frame 20. The battery 10 can be used to power the vehicle 1. For example, the battery 10 can serve as an operating power source for the vehicle 1. The vehicle 1 can also include a controller 30 and a motor 40. The controller 30 is used to control the battery 10 to power the motor 40, for example, for starting, navigating and driving the vehicle 1.

[0063] In some embodiments of the present application, the battery 10 can serve not only as an operating power source for the vehicle 1 , but also as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0064] Referring to FIG2 , the battery 10 provided in an embodiment of the present application includes a battery cell 100, a housing 200, and a heat exchange assembly 300. The housing 200 is used to accommodate the battery cell 100. The housing 200 includes a cover 210. The cover 210 is used to serve as at least a portion of the floor of the vehicle 1. The cover 210 includes a cover plate 211. Referring to FIG3 , the cover plate 211 includes a first reinforcement portion 2111 and at least two first plates 2112. The first reinforcement portion 2111 is connected between two adjacent first plates 2112 and protrudes from the surface of the first plate 2112 facing away from the battery cell 100. Referring to FIG4 , a first receiving groove 21111 is recessed on the surface of the first reinforcement portion 2111 facing the battery cell 100. Referring to FIG1 and FIG4 , the heat exchange assembly 300 is at least partially embedded in the first receiving groove 21111 and is thermally connected to the battery cell 100.

[0065] Referring to Figure 2 , the cover 210 is configured to serve as at least a portion of the floor of vehicle 1. This can be understood as either directly serving as the floor of vehicle 1 or serving as a portion of the floor of vehicle 1. In other words, the floor of vehicle 1 includes the cover 210 and other plate structures, which together form the floor of vehicle 1. With the cover 210 serving as at least a portion of the floor of vehicle 1, the gap between the cover 210 and the floor is eliminated, facilitating improved integration of vehicle 1. When the cover 210 serves as at least a portion of the floor of vehicle 1, the battery cells 100 and heat exchange assembly 300 are both located on the side of the cover 210 facing away from the vehicle's cabin. In other words, the surface of the cover 210 facing away from the battery cells 100 and heat exchange assembly 300 faces the vehicle's cabin.

[0066] Referring to Figure 2 , in some implementations, the cover 210 may include a cover plate 211 and a cover sidewall 212. The cover sidewall 212 is connected to the outer edge of the cover plate 211. The cover sidewall 212 and the cover plate 211 enclose a cavity with an opening, and at least a portion of the structure of the battery cell 100 is accommodated within the cavity. Of course, in other implementations, the cover 210 may include only the cover plate 211, and the structure of the cover 210 can be configured as needed. The material of the cover 210 can be, but is not limited to, steel, aluminum alloy, etc., and the material of the cover 210 can be configured as needed.

[0067] Referring to Figures 3 and 4, the cover plate 211 may include one or more first reinforcement portions 2111, and two or more first plates 2112. The number of first plates 2112 is at least one more than the number of first reinforcement portions 2111. When there is one first reinforcement portion 2111, there are correspondingly two first plates 2112. The first reinforcement portion 2111 is connected between two first plates 2112. When there are multiple first reinforcement portions 2111, there are correspondingly multiple first plates 2112. Multiple first reinforcement portions 2111 and multiple first plates 2112 can be alternately connected in sequence. The first reinforcement portion 2111 and the first plate 2112 can be integrally formed, or they can be separately formed and then connected to each other. The first reinforcement portion 2111 can extend along a straight line. For example, the first reinforcement portion 2111 can extend along the length or width direction of the cover plate 211. The length direction of the cover plate 211 is the first direction D1 shown in Figures 3 and 4, and the width direction of the cover plate 211 is the second direction D2 shown in Figures 3 and 4. The first reinforcement portion 2111 can also extend along a direction that forms an angle with the length and width directions of the cover plate 211. The first reinforcement portion 2111 can also extend along a curve. For example, the first reinforcement portion 2111 can be in a serpentine shape. The outer contour of the cross section of the first reinforcement portion 2111 can be semicircular, semi-elliptical, rectangular, trapezoidal, etc. The first receiving groove 21111 can extend along the extension direction of the first reinforcement portion 2111. The cross section of the first receiving groove 21111 can be in a semicircular, semi-elliptical, rectangular, trapezoidal, etc. This application has no special restrictions on the number of first reinforcing parts 2111, the number of first plates 2112, the extension direction of the first reinforcing parts 2111, the cross-sectional shape of the first reinforcing parts 2111, and the cross-sectional shape of the first receiving groove 21111.

[0068] Referring to Figure 2 , the number of battery cells 100 can be one or more. If there are multiple battery cells 100, the multiple battery cells 100 can be connected in series, in parallel, or in a hybrid configuration. A hybrid configuration refers to a combination of series and parallel connections within the multiple battery cells 100. Multiple battery cells 100 can be directly connected in series, in parallel, or in a hybrid configuration, and then the entire structure of the multiple battery cells 100 is housed within a housing 200. Alternatively, the battery 10 can be constructed by first connecting multiple battery cells 100 in series, in parallel, or in a hybrid configuration to form a battery module, which is then connected in series, in parallel, or in a hybrid configuration to form a single structure housed within a housing 200. The battery 10 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 100.

[0069] Each battery cell 100 may be a secondary battery or a primary battery. A secondary battery refers to a battery cell 100 that can be recharged to activate its active material after discharge and continue to be used. A primary battery refers to a battery cell 100 that cannot be recharged to activate its active material after the battery cell 100's power is exhausted and continues to be used. The battery cell 100 may also be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., but is not limited thereto. The battery cell 100 may be a cylindrical battery cell, a prismatic battery cell, or a battery cell of another shape. Prismatic battery cells include square-shell battery cells, blade-shaped battery cells, and polygonal prismatic battery cells. Polygonal prismatic battery cells, for example, hexagonal prismatic battery cells, are not particularly limited in this application.

[0070] The heat exchange assembly 300 is a component used to regulate the temperature of the battery cells 100. It is understood that the heat exchange assembly 300 is in contact with the battery cells 100 to absorb heat from the battery cells 100 or transfer heat to the battery cells 100, thereby regulating the temperature of the battery cells 100. The heat exchange assembly 300 can be configured in a variety of different shapes. For example, the heat exchange assembly 300 can be configured as a serpentine tube. For another example, the heat exchange assembly 300 can include two manifolds 320 spaced apart and a plurality of heat exchange tubes 310 connected between the two manifolds 320.

[0071] The heat exchange assembly 300 is at least partially embedded in the first receiving groove 21111. It can be understood that all pipe sections of the heat exchange assembly 300 are embedded in the first receiving groove 21111, or part of the pipe sections of the heat exchange assembly 300 are embedded in the first receiving groove 21111, and the other part of the pipe sections are not embedded in the first receiving groove 21111. For the pipe sections of the heat exchange assembly 300 embedded in the first receiving groove 21111, the part of the pipe sections may not protrude from the groove opening of the first receiving groove 21111, or may protrude from the first receiving groove 21111. The slot opening of the receiving groove 21111, for the pipe section in the heat exchange assembly 300 that is not embedded in the first receiving groove 21111, this part of the pipe section can be set on the side of the first plate 2112 facing the battery cell 100, and this part of the pipe section can also be set at other positions on the cover plate 211 except the first reinforcement part 2111 and the first plate 2112. For example, when the cover plate 211 also includes a second reinforcement part 2113, this part of the pipe section can also be set in the second receiving groove 21131 opened on the second reinforcement part 2113.

[0072] The heat exchange assembly 300 and the battery cell 100 can be fixed in the box body 200 in a variety of ways, please refer to Figures 2 and 3. In some implementations, the battery cell 100 can be fixed on the surface of the first plate 2112 facing the battery cell 100, and the heat exchange assembly 300 can be fixedly connected to the battery cell 100 instead of being fixedly connected to the cover body 210. This design prevents the heat exchange assembly 300 from being pulled by the battery cell 100, that is, the gravity of the battery cell 100 will not be transferred to the heat exchange assembly 300, which can reduce the risk of deformation of the heat exchange assembly 300; and, the heat exchange assembly 300 and the battery cell 100 are fixedly connected, and the heat exchange efficiency between the heat exchange assembly 300 and the battery cell 100 is high.

[0073] Please refer to Figures 2 and 3. In some implementations, the battery cell 100 can be fixed on the surface of the first plate 2112 facing the battery cell 100, and the heat exchange assembly 300 can be fixedly connected to the cover 210 instead of being fixedly connected to the battery cell 100. This design allows the heat exchange assembly 300 to be more stably fixed between the battery cell 100 and the cover 210, and the gravity of the battery cell 100 will not be transferred to the heat exchange assembly 300. The heat exchange assembly 300 will not be pulled by the battery cell 100, which can reduce the risk of rupture and deformation of the heat exchange assembly 300.

[0074] Referring to Figures 2 and 3 , in some implementations, the battery cell 100 can be fixed to the surface of the first plate 2112 facing the battery cell 100, and the heat exchange assembly 300 can be fixedly connected to both the cover 210 and the battery cell 100. This design allows the battery cell 100 to be directly connected to the cover 210 and indirectly connected to the cover 210 via the heat exchange assembly 300, thereby improving the installation stability of the battery cell 100 and enhancing the heat exchange efficiency between the heat exchange assembly 300 and the battery cell 100. Furthermore, the heat exchange assembly 300 and the battery cell 100 below the cover 210 can form a solid structure, eliminating the feeling of stepping on air or feeling unstable when a user steps on the cover 210.

[0075] Of course, in other implementations, the battery cell 100 may not be directly connected to the cover body 210, but may be indirectly connected to the cover body 210 through the heat exchange component 300, or may be fixed in the box body 200 through other clip-on structures. The battery cell 100 and the heat exchange component 300 may be fixed in the box body 200 in a suitable manner as needed, and this application has no special restrictions.

[0076] It should be noted that in the above implementation, the heat exchange component 300 can be connected to the cover body 210 by bonding, welding, threaded connection and other connection methods; the heat exchange component 300 can be connected to the battery cell 100 by bonding, threaded connection and other connection methods; the battery cell 100 can also be connected to the cover body 210 by bonding, threaded connection and other connection methods. There is no special restriction in this application.

[0077] In the technical solution of the embodiment of the present application, the cover body 210 includes a cover plate 211, the cover plate 211 includes a first reinforcement portion 2111 and at least two first plates 2112, the first reinforcement portion 2111 is connected between the two first plates 2112, the first reinforcement portion 2111 protrudes from the surface of the first plate 2112 facing away from the battery cell 100, and the surface of the first reinforcement portion 2111 facing the battery cell 100 is recessed with a first receiving groove 21111, and at least part of the structure of the heat exchange component 300 is embedded in the first receiving groove 21111. In this way, since at least part of the structure of the heat exchange component 300 is embedded in the first receiving groove 21111, the heat exchange component 300 and the cover body 210 overlap in the height direction of the battery 10, and the heat exchange component 300 and the cover body 210 overlap in the height direction of the battery 10. The compactness is high, and the overall height of the heat exchange component 300 and the cover plate 211 can reach a minimum value, which is beneficial to improving the space utilization of the battery 10. The height direction of the battery 10 is the third direction D3 in Figure 2; and, since the cover body 210 serves as at least a part of the floor of the vehicle 1, the cover plate 211 covers the outside of the heat exchange component 300, and the cover body 210 can protect the heat exchange component 300 and prevent the heat exchange component 300 from being directly stepped on; in addition, the first reinforcement portion 2111 can serve as a reinforcement rib to strengthen the structural strength of the cover body 210, so that the cover body 210 can more effectively protect the heat exchange component 300, thereby reducing the risk of deformation of the heat exchange component 300, improving the safety performance of the battery 10, and achieving the effect of taking into account both the space utilization and safety performance of the battery 10.

[0078] In addition, in the technical solution of the embodiment of the present application, the heat exchange component 300 is embedded in the first receiving groove 21111 of the first reinforcement part 2111, instead of directly opening a heat exchange flow channel inside the cover body 210. This can make the structure of the cover body 210 simpler and the thermal conductivity performance requirements lower. In this way, when processing the cover body 210, the processing technology and material of the cover body 210 can be selected more freely, which facilitates the fixed connection of the cover body 210 with the frame 20, seat and other structures of the vehicle 1, thereby improving the compatibility and modular characteristics of the battery 10.

[0079] Referring to Figures 3 to 5, in some embodiments, the heat exchange assembly 300 includes a plurality of heat exchange tubes 310, the number of first reinforcement portions 2111 is multiple, the first reinforcement portions 2111 and the first plates 2112 are alternately arranged, and the plurality of first accommodating grooves 21111 respectively accommodate the plurality of heat exchange tubes 310.

[0080] In the technical solution of this embodiment, multiple heat exchange tubes 310 can provide a larger heat exchange area, thereby improving the heat exchange efficiency between the heat exchange component 300 and the battery cell 100; multiple first reinforcement parts 2111 can play the role of multiple reinforcement ribs, which can more effectively enhance the structural strength of the cover body 210, thereby enabling the cover body 210 to more effectively protect the heat exchange component 300 and improve the safety performance of the battery 10.

[0081] For example, referring to Figures 3 and 4 , multiple first reinforcements 2111 and multiple first plates 2112 are sequentially spaced apart along the width of the cover 210, and each first reinforcement 2111 and each first plate 2112 extends along the length of the cover 210. Referring to Figure 5 , the heat exchange assembly 300 includes multiple parallel and spaced heat exchange tubes 310, each embedded in a first receiving groove 21111 on the multiple first reinforcements 2111. Referring to Figure 2 , there are multiple battery cells 100, which are arranged in an array along the width and length of the cover 210. Each heat exchange tube 310 simultaneously exchanges heat with a row of battery cells 100 sequentially arranged along the length of the cover 210. Furthermore, referring to Figure 8 , the dimension of the heat exchange tubes 310 in the width of the cover 210 is smaller than the dimension of the battery cells 100 in the width of the cover 210. Such a design ensures that the heat exchange tube 310 will not completely cover the surface of the battery cell 100 facing the cover body 210. The area on the surface of the battery cell 100 facing the cover body 210 that is not covered by the heat exchange tube 310 can be fixedly connected to the first plate 2112 by bonding or other means. In this way, each battery cell 100 can be in direct contact with the heat exchange tube 310 to achieve a better heat exchange effect, and can also be directly mounted on the first plate 2112, reducing or avoiding the pulling of the battery cell 100 on the heat exchange assembly 300, reducing the risk of deformation of the heat exchange assembly 300, and improving the safety performance of the battery 10.

[0082] Referring to FIG. 5 , in some embodiments, the heat exchange assembly 300 further includes a manifold 320 , which is connected to the same end of at least two heat exchange tubes 310 .

[0083] In some implementations, the heat exchange assembly 300 includes two manifolds 320, which are respectively provided with a liquid inlet 321 and a liquid outlet 322. The manifold 320 provided with the liquid inlet 321 serves as a liquid inlet manifold and is connected to the same end of the multiple heat exchange tubes 310, and the manifold 320 provided with the liquid outlet 322 serves as a liquid outlet manifold and is connected to the other end of the multiple heat exchange tubes 310. The heat exchange medium can enter the liquid inlet manifold from the liquid inlet 321, and then be diverted from the liquid inlet manifold to the multiple heat exchange tubes 310. The heat exchange medium of the multiple heat exchange tubes 310 is finally collected in the liquid outlet manifold and flows out from the liquid outlet 322 of the liquid outlet manifold.

[0084] In some implementations, referring to FIG5 , the heat exchange assembly 300 includes three manifolds 320, two of which are provided with a liquid inlet 321 and a liquid outlet 322, respectively. The manifold 320 provided with the liquid inlet 321 is connected to the first ends of some of the heat exchange tubes 310 in the plurality of heat exchange tubes 310 as a liquid inlet manifold, and the manifold 320 provided with the liquid outlet 322 is connected to the first ends of the other heat exchange tubes 310 in the plurality of heat exchange tubes 310 as a liquid outlet manifold. The manifold 320 at the port 322 serves as an intermediate manifold and is connected to the second ends of the multiple heat exchange tubes 310. The heat exchange medium can enter the liquid inlet manifold from the liquid inlet 321, and then be diverted from the liquid inlet manifold to the heat exchange tubes 310 connected to the liquid inlet manifold. The heat exchange medium in the heat exchange tubes 310 connected to the liquid inlet manifold is finally collected in the intermediate manifold and diverted from the intermediate manifold to the heat exchange tubes 310 connected to the liquid outlet manifold. The heat exchange medium is finally collected from the heat exchange tubes 310 connected to the liquid outlet manifold to the liquid outlet manifold and flows out from the liquid outlet 322 of the liquid outlet manifold.

[0085] In some other implementations, the number of the manifolds 320 may be four or more, and the number of the manifolds 320 and the connection method between the manifolds 320 and the heat exchange tubes 310 may be set as needed.

[0086] In the technical solution of the embodiment of the present application, the manifold 320 can realize the input and output of the heat exchange medium in the heat exchange tube 310, and can also distribute the flow of the heat exchange medium, so that the heat exchange tube 310 can effectively exchange heat with the battery cell 100.

[0087] Please refer to Figures 3 and 4. In some embodiments, the cover plate 211 also includes a second reinforcement portion 2113. The second reinforcement portion 2113 and the first reinforcement portion 2111 are arranged to intersect each other. The second reinforcement portion 2113 is recessed with a second accommodating groove 21131 on the surface facing the battery cell 100. The second accommodating groove 21131 is used to accommodate the manifold 320.

[0088] It is understood that there can be two or more second reinforcements 2113, each of which is connected to the ends of at least two first reinforcements 2111. This allows the second receiving grooves 21131 on the second reinforcement 2113 to communicate with at least two first receiving grooves 21111, thereby enabling the manifold 320 in the second receiving grooves 21131 to communicate with the ends of at least two heat exchange tubes 310. The angle between the intersecting second reinforcements 2113 and the first reinforcements 2111 can be 75° to 115°, for example, 85°, 105°, etc.

[0089] 3 and 4 , in some implementations, the cover plate 211 includes two second reinforcements 2113. One of the two second reinforcements 2113 is connected to the same end of all the first reinforcements 2111 and all the first plates 2112, and the other of the two second reinforcements 2113 is connected to the other ends of all the first reinforcements 2111 and all the first plates 2112. A second receiving slot 21131 is defined on each of the two second reinforcements 2113. One of the two second receiving slots 21131 communicates with the same end of all the first receiving slots 21111, and the other of the two second receiving slots 21131 communicates with the other ends of all the first receiving slots 21111. Such a configuration can facilitate the connection between the confluence pipe 320 arranged in the second receiving tank 21131 and the end of the heat exchange tube 310 arranged in the first receiving tank 21111, thereby realizing the diversion or convergence of the heat exchange medium, and can also enhance the structural strength of the cover body 210 from two different directions.

[0090] In the technical solution of the embodiment of the present application, the structure of the cover plate 211 can be reinforced from two different directions through the intersecting arrangement of the first reinforcement portion 2111 and the second reinforcement portion 2113, so that the cover plate 211 can more effectively protect the cover plate 211, thereby improving the safety performance of the battery 10.

[0091] Referring to FIG. 3 and FIG. 4 , in some embodiments, the first reinforcement portion 2111 and the second reinforcement portion 2113 are perpendicular to each other.

[0092] 3 and 4 , in some implementations, the first reinforcement portion 2111 extends along the length of the cover 210, and the second reinforcement portion 2113 extends along the width of the cover 210. In other implementations, the first reinforcement portion 2111 extends along the width of the cover 210, and the second reinforcement portion 2113 extends along the length of the cover 210.

[0093] In the technical solution of the embodiment of the present application, the first reinforcement part 2111 and the second reinforcement part 2113 can reinforce the structure of the cover plate 211 from two mutually perpendicular directions of the cover plate 211, which is beneficial for the cover plate 211 to more effectively protect the heat exchange component 300. In addition, the first reinforcement part 2111 and the second reinforcement part 2113 are perpendicular to each other, which can facilitate the arrangement of mutually perpendicular heat exchange tubes 310 and manifolds 320, which is beneficial for the arrangement of more pipes in a limited space, thereby increasing the heat exchange area and improving the heat exchange efficiency.

[0094] In some embodiments, the battery cell 100 is connected to the first plate 2112. Specifically, the battery cell 100 and the first plate 2112 can be fixedly connected by bonding, welding, screwing, or other connection methods.

[0095] In the technical solution of the embodiment of the present application, the battery cell 100 is directly connected to the first plate 2112. The first plate 2112 can directly bear all or part of the weight of the battery cell 100, thereby reducing the pulling force of the battery cell 100 on the heat exchange assembly 300 and reducing the risk of deformation of the heat exchange assembly 300. Specifically, when the battery cell 100 is not indirectly connected to the cover 210 through the heat exchange assembly 300, the entire weight of the battery cell 100 is directly transferred to the first plate 2112, preventing the battery cell 100 from pulling on the heat exchange assembly 300, thereby reducing the risk of deformation of the heat exchange assembly 300 and improving the safety performance of the battery 10. When the battery cell 100 is indirectly connected to the cover 210 through the heat exchange assembly 300, some of the weight of the battery cell 100 is directly transferred to the first plate 2112, reducing the pulling force of the battery cell 100 on the heat exchange assembly 300, reducing the risk of deformation of the heat exchange assembly 300 and improving the safety performance of the battery 10.

[0096] In some embodiments, the battery cell 100 is connected to the heat exchange assembly 300. Specifically, the battery cell 100 and the heat exchange assembly 300 can be fixedly connected using bonding, welding, threading, or other connection methods. This design facilitates full contact between the heat exchange assembly 300 and the battery cell 100, thereby improving the heat exchange efficiency between the two.

[0097] In some embodiments, the heat exchange assembly 300 is connected to the cover 210. Specifically, the heat exchange assembly 300 and the cover 210 can be fixedly connected by bonding, threading, welding, etc., and can be configured as needed.

[0098] In the technical solution of the embodiment of the present application, the battery cell 100 is not only directly connected to the cover 210, but is also indirectly connected to the cover 210 via the heat exchange assembly 300, thus providing good installation stability for the battery cell 100. Furthermore, compared to a situation where the battery cell 100 is only indirectly connected to the cover 210 via the heat exchange assembly 300, i.e., where the weight of the battery cell 100 is completely loaded on the heat exchange assembly 300, in the technical solution of the embodiment of the present application, only a portion of the weight of the battery cell 100 is loaded on the heat exchange assembly 300, which reduces the probability of deformation of the heat exchange assembly 300. This ensures better installation stability for the battery cell 100 while minimizing deformation or rupture of the heat exchange assembly 300.

[0099] In some embodiments, the heat exchange assembly 300 is bonded to the walls of the first receiving groove 21111. This design ensures a stable connection between the heat exchange assembly 300 and the cover 210, and evenly distributes force across the heat exchange assembly 300, thereby reducing the risk of deformation or rupture of the heat exchange assembly 300. Furthermore, this design ensures that the interior of the first receiving groove 21111 is filled with a solid structure. When the heat exchange assembly 300 is bonded to the battery cell 100, this minimizes the feeling of instability or air leakage experienced by users when stepping on the cover 210.

[0100] In some embodiments, the battery cell 100 includes a housing and electrode terminals disposed on a wall of the housing, and a side of the housing facing away from the electrode terminals is connected to the first plate 2112 .

[0101] It can be understood that the shell refers to a shell structure with a space inside. The internal space of the shell is used to accommodate an electrode assembly that can provide and store electrical energy. The electrode assembly has a positive electrode tab and a negative electrode tab. The electrode terminal refers to a conductive member provided on the shell. The electrode terminal is connected to the tab of the electrode assembly to output electrical energy from the battery cell 100 or charge the battery cell 100. The battery cell 100 generally has two electrode terminals, which are respectively connected to the positive electrode tab and the negative electrode tab of the electrode assembly. The electrode terminal connected to the positive electrode tab is the positive electrode terminal, and the electrode terminal connected to the negative electrode tab is the negative electrode terminal. In this embodiment, the positive terminal and the negative terminal of the battery cell 100 are both provided on the side of the shell facing away from the cover body 210.

[0102] In the technical solution of the embodiment of the present application, by arranging the electrode terminals of the battery cell 100 on the side of the outer shell facing away from the cover body 210, when designing the battery 10, it is only necessary to reserve a predetermined space S on the side of the battery cell 100 facing away from the cover body 210. As shown in Figure 7, the predetermined space S can be used as the bottom ball hitting space and high-voltage space of the battery 10 at the same time, which can avoid the need to separately set up the bottom ball hitting space and the high-voltage space in the box body 200, thereby improving the space utilization rate of the battery 10.

[0103] In some embodiments, the battery cell 100 further includes a pressure relief mechanism disposed on the side of the housing facing away from the cover plate 211. The pressure relief mechanism is used to release gas or liquid inside the battery cell 100 when the temperature or pressure of the battery cell 100 exceeds a safety threshold, thereby reducing the pressure inside the battery cell 100 and lowering the risk of explosion of the battery cell 100.

[0104] In the technical solution of the embodiment of the present application, by arranging the pressure relief mechanism of the battery cell 100 on the side of the outer shell facing away from the cover body 210, when designing the battery 10, it is only necessary to reserve a predetermined space S on the side of the battery cell 100 facing away from the cover body 210. The predetermined space S can be used as the bottom ball hitting space, high-pressure space and pressure relief space of the battery 10 at the same time, which can avoid separately setting the bottom ball hitting space, high-pressure space and pressure relief space in the box body 200, thereby improving the space utilization rate of the battery 10.

[0105] 2 and 3 , in some embodiments, the battery 10 further includes a mounting beam 400 . The mounting beam 400 is connected to a surface of the cover plate 211 facing away from the battery cell 100 . The mounting beam 400 is used to connect to the frame 20 of the vehicle 1 .

[0106] The number of mounting beams 400 can be one or more, and the mounting beams 400 can extend along the width or length of the cover 210. Furthermore, when there are multiple mounting beams 400, the multiple mounting beams 400 can extend in the same or different directions, and the multiple mounting beams 400 can be interconnected or spaced apart. Furthermore, the cross-sectional shape of the mounting beams 400 can be square, trapezoidal, or other shapes. The number, extension direction, and cross-sectional shape of the mounting beams 400 can be customized as needed.

[0107] For example, referring to Figures 2 and 3 , there are two mounting beams 400 , both extending along the width of the cover 210 and spaced apart along the length of the cover 210. The provision of two mounting beams 400 disperses the forces acting on the cover 210, reducing the risk of deformation or damage to the cover 210 due to localized excessive stress, allowing the cover plate 211 to more effectively protect the heat exchange assembly 300. Furthermore, the provision of two mounting beams 400 reduces the likelihood of the battery 10 swinging, thereby ensuring a more stable mounting of the battery 10 on the vehicle frame 20.

[0108] Specifically, the mounting beam 400 can be made of steel, aluminum alloy and other materials, and the mounting beam 400 can be fixedly connected to the cover plate 211 by welding, threaded connection, riveting and other methods, and fixedly connected to the frame 20 by fasteners, locks and other structures, and can be set as needed.

[0109] In the technical solution of the embodiment of the present application, the mounting beam 400 is fixed on the surface of the cover plate 211 facing away from the battery cell 100, and can serve as a reinforcement rib of the cover body 210 to strengthen the structural strength of the cover body 210, thereby enabling the cover body 210 to effectively protect the heat exchange component 300 and improve the safety performance of the battery 10; and, compared with the situation where the edge of the cover body 210 is directly connected to the frame 20, the technical solution of the embodiment of the present application is to set the mounting beam 400 on the surface of the cover plate 211 facing away from the battery cell 100. When the frame 20 is connected to the frame 20 through the mounting beam 400, the center of gravity of the battery 10 is closer to the mounting point position, and the force transmission path is shorter, that is, the force arm of the gravity of the battery 10 is smaller, and the torque generated by the gravity of the battery 10 is smaller. In this way, the thickness of the cover body 210 can be designed to be thinner, which is conducive to the lightweight design of the battery 10.

[0110] Referring to Figures 2 and 3, in some embodiments, the mounting beam 400 is welded to the surface of the cover plate 211 facing away from the battery cell 100. Using a welding process to weld the mounting beam 400 and the cover body 210 facilitates the stable connection of the mounting beam 400 to the cover body 210. In addition, since the cover plate 211 in the embodiment of the present application does not have an integrated heat exchange flow channel, this provides greater freedom in the preparation process and material selection of the cover plate 211. Therefore, when the mounting beam 400 is welded to the cover plate 211, the same material can be selected to prepare the mounting beam 400 and the cover plate 211. This helps to improve the welding stability of the mounting beam 400 and the cover plate 211 and simplify the welding process. For example, the cover plate 211 and the mounting beam 400 can both be made of steel. In this way, the cover plate 211 and the mounting beam 400 can be firmly welded, and the welding process between the two is also relatively simple.

[0111] Please refer to Figures 2 and 3. In some embodiments, one of the mounting beam 400 and the frame 20 is provided with a first through hole (not shown in the figure, the same below), and the other of the mounting beam 400 and the frame 20 is provided with a first threaded hole (not shown in the figure, the same below). Please refer to Figure 3. The battery 10 also includes a first fastener 410, which passes through the first through hole and is threadedly connected to the first threaded hole.

[0112] It can be understood that in one implementation, the mounting beam 400 is provided with a first through hole, and the frame 20 is provided with a first threaded hole. In this case, the first fastener 410 is passed through the first through hole in the mounting beam 400 and then threadedly connected to the first threaded hole in the frame 20, thereby fixing the battery 10 to the frame 20. In another implementation, the mounting beam 400 is provided with a first threaded hole, and the frame 20 is provided with a first through hole. In this case, the first fastener 410 is passed through the first through hole in the frame 20 and then threadedly connected to the first threaded hole in the mounting beam 400, thereby fixing the battery 10 to the frame 20.

[0113] In the technical solution of the embodiment of the present application, the number of first through holes can be one or more, the number of first threaded holes and the number of first fasteners 410 are equal to the number of first through holes, and the positions of the first threaded holes correspond to the positions of the first through holes. For example, the mounting beam 400 is provided with a plurality of first through holes, and the plurality of first through holes are arranged in a sequence with equal spacing along the length of the mounting beam 400. In this case, the vehicle frame 20 is provided with a plurality of first threaded holes, and the plurality of first threaded holes correspond one-to-one with the positions of the plurality of first through holes. The provision of a plurality of first through holes arranged at equal spacing on the mounting beam 400 is more conducive to uniform stress distribution on the mounting beam 400.

[0114] In the technical solution of the embodiment of the present application, the first fastener 410 is used to connect the mounting beam 400 and the frame 20, so that the battery 10 can be stably connected to the frame 20 when in use. In addition, the battery 10 can be more conveniently removed from the frame 20 when maintenance and replacement of the battery 10 are required, thereby improving the maintenance efficiency of the battery 10.

[0115] Referring to FIG. 2 and FIG. 3 , in some embodiments, the battery 10 further includes a seat beam 500 . The seat beam 500 is connected to a surface of the cover plate 211 facing away from the battery cell 100 .

[0116] Specifically, the number of seat beams 500 can be one or more, and the seat beams 500 can extend along the width or length of the cover 210. Furthermore, when there are multiple seat beams 500, the extension directions of the multiple seat beams 500 can be the same or different, and the multiple seat beams 500 can be interconnected or spaced apart. Furthermore, the cross-sectional shape of the seat beams 500 can be square, trapezoidal, or other shapes. The number, extension direction, and cross-sectional shape of the seat beams 500 can be customized as needed.

[0117] For example, referring to Figures 2 and 3 , there are two seat beams 500 , both extending along the width of the cover plate 211 and spaced apart along the length of the cover plate 211. Providing two seat beams 500 disperses the weight of the seat and occupants, strengthens the structural strength of the cover 210, and reduces the risk of deformation or damage to the cover 210 due to localized excessive stress.

[0118] Specifically, the seat beam 500 can be made of steel, aluminum alloy or other materials, and the seat beam 500 can be fixedly connected to the cover plate 211 by welding, threaded connection, riveting or other methods.

[0119] In the technical solution of the embodiment of the present application, the seat beam 500 is fixed on the surface of the cover plate 211 facing away from the battery cell 100. The seat beam 500 can serve as a reinforcing rib of the cover body 210 to enhance the structural strength of the cover body 210, thereby enabling the cover body 210 to effectively protect the heat exchange component 300 and improve the safety performance of the battery 10.

[0120] Referring to Figures 2 and 3 , in some embodiments, the seat beam 500 is welded to the surface of the cover plate 211 facing away from the battery cells 100. Using a welding process to weld the seat beam 500 to the cover 210 facilitates a stable connection of the seat beam 500 to the cover 210. Furthermore, since the cover 210 in this embodiment does not have an integrated heat exchange flow channel, this provides greater freedom in the selection of the manufacturing process and material of the cover 210. Therefore, when welding the seat beam 500 to the cover 211, the same material can be used to manufacture the seat beam 500 and the cover 211. This improves the welding stability of the seat beam 500 and the cover 211 and simplifies the welding process. For example, both the cover 211 and the seat beam 500 can be made of steel. This allows for a stable welding of the cover 211 and the seat beam 500, and a relatively simple welding process.

[0121] In some embodiments, the seat beam 500 is used to connect to the frame 20 of the vehicle 1. Specifically, the seat beam 500 can be fixedly connected to the frame 20 by fasteners, locks, and other structures, and can be configured as needed.

[0122] In the technical solution of the embodiment of the present application, the seat beam 500 can directly transfer the weight of the driver and passengers of the vehicle 1 to the frame 20, which can reduce the pressure transmitted from the cover 210 to the heat exchange component 300, reduce the risk of deformation of the heat exchange component 300, and further improve the safety performance of the battery 10.

[0123] Please refer to Figure 3. In some embodiments, one of the seat beam 500 and the frame 20 is provided with a second through hole 510, and the other of the seat beam 500 and the frame 20 is provided with a second threaded hole (not shown in the figure, the same below). The battery 10 also includes a second fastener (not shown in the figure, the same below), which passes through the second through hole 510 and is threadedly connected to the second threaded hole.

[0124] It will be appreciated that, in one implementation, the seat beam 500 is provided with a second through hole 510, and the vehicle frame 20 is provided with a second threaded hole. In this case, the seat beam 500 can be fixed to the vehicle frame 20 by passing the second fastener through the second through hole 510 of the seat beam 500 and then threadedly connected to the second threaded hole of the vehicle frame 20. In another implementation, the seat beam 500 is provided with a second threaded hole, and the vehicle frame 20 is provided with a second through hole 510. In this case, the seat beam 500 can be fixed to the vehicle frame 20 by passing the second fastener through the second through hole 510 of the vehicle frame 20 and then threadedly connected to the second threaded hole of the seat beam 500.

[0125] In the technical solution of the embodiment of the present application, the number of second through holes 510 can be one or more, the number of second threaded holes and the number of second fasteners are equal to the number of second through holes 510, and the positions of the second threaded holes correspond to the positions of the second through holes 510. For example, referring to FIG3 , the seat beam 500 is provided with second through holes 510 at both ends. In this case, corresponding positions on the vehicle frame 20 are provided with second threaded holes, and the seat beam 500 and the vehicle frame 20 have two connection points, which facilitates a stable connection of the seat beam 500 to the vehicle frame 20.

[0126] In the technical solution of the embodiment of the present application, a second fastener is used to connect the seat beam 500 and the frame 20, which can stably connect the seat beam 500 to the frame 20 and facilitate the disassembly, assembly and maintenance of the seat connected to the seat beam 500 and the battery 10.

[0127] Please refer to Figure 2, and Figures 9 to 12. In some embodiments, the battery 10 further includes a first expansion beam 600 and a second expansion beam 700. The first expansion beam 600 and the second expansion beam 700 are connected to the side of the cover plate 211 facing the battery cell 100, and the battery cell 100 is arranged between the first expansion beam 600 and the second expansion beam 700.

[0128] The first expansion beam 600 can be made of a material such as steel or aluminum alloy, and can be fixedly connected to the surface of the cover plate 211 facing the battery cell 100 by welding, threading, riveting, or the like. The second expansion beam 700 can be made of the same or different materials as the first expansion beam 600, and can be connected to the cover plate 211 by the same or different connection methods as the first expansion beam 600, and can be configured as needed. For example, referring to FIG10 , the first expansion beam 600 is provided with a third threaded hole (not shown in the figure, the same below), the cover body 210 is provided with a third through hole (not shown in the figure, the same below), and the battery 10 further includes a third fastener 610. The third fastener 610 passes through the third through hole and is threadedly connected to the third threaded hole, thereby securing the first expansion beam 600 to the surface of the cover plate 211 facing the battery cell 100.

[0129] 2 , in one implementation, the first expansion beam 600 and the second expansion beam 700 may be spaced apart in the length direction of the cover 210 and both extend along the width direction of the cover 210. In other implementations, the first expansion beam 600 and the second expansion beam 700 may be spaced apart in the width direction of the cover 210 and both extend along the length direction of the cover 210, and may be arranged as needed.

[0130] In the technical solution of the embodiment of the present application, the first expansion beam 600 and the second expansion beam 700 can resist the expansion force of the battery cell 100, thereby improving the safety performance of the battery 10; and the first expansion beam 600 and the second expansion beam 700 are fixedly connected to the cover body 210, which can enhance the structural strength of the cover body 210, so that the cover body 210 can more effectively protect the heat exchange component 300 and the battery cell 100, thereby further improving the safety performance of the battery 10.

[0131] Referring to FIG. 2 and FIG. 12 , in some embodiments, there are multiple battery cells 100 , and the battery 10 further includes a vapor chamber 800 . The vapor chamber 800 is disposed between the multiple battery cells 100 and the heat exchange assembly 300 .

[0132] Specifically, the vapor chamber 800 can be made of one or more metal materials with high thermal conductivity, such as aluminum and copper. The vapor chamber 800 can be fixedly connected to the surface of the cover plate 211 facing the battery cell 100 by bonding, welding, or other methods. The vapor chamber 800 can also be fixedly connected to the battery cell 100 by bonding, threading, clamping, or other methods, and can be configured as needed.

[0133] In the technical solution of the embodiment of the present application, the heat spreader 800 can evenly disperse the heat generated by multiple battery cells 100, and try to avoid the generation of hot spots inside the battery 10. The presence of the heat spreader 800 can also provide a larger heat conduction area and a better heat dissipation path, increase the heat transfer speed, and improve the heat exchange efficiency between the heat exchange component 300 and the battery cell 100.

[0134] Please refer to Figures 2, 7 and 9. In some embodiments, the battery cell 100 also includes a bottom guard plate 220. The bottom guard plate 220 and the cover body 210 together form a receiving cavity 201 that can accommodate the heat exchange component 300 and the battery cell 100. The battery cell 100 and the heat exchange component 300 can be protected to minimize external impact on the battery cell 100 and the heat exchange component 300.

[0135] In one implementation, please refer to Figure 2, the bottom guard plate 220 may include a guard plate bottom wall 221 and a guard plate side wall 222 connected to the edge of the guard plate bottom wall 221, the guard plate side wall 222 and the guard plate bottom wall 221 form a frame-like structure with one end open. In this case, the bottom guard plate 220 can be combined with the plate-shaped cover body 210 to form a accommodating cavity 201, that is, the cover plate 211 covers the open side of the bottom guard plate 220.

[0136] In one implementation, the bottom guard plate 220 is a plate-like structure. In this case, please refer to Figure 2. The cover body 210 may include a cover plate 211 and a cover body side wall 212 connected to the edge of the cover plate 211. The cover plate 211 and the cover body side wall 212 form a frame-like structure with one end open. After the bottom guard plate 220 covers the open side of the cover body 210, it is surrounded by the cover body 210 to form a accommodating cavity 201.

[0137] In one implementation, please refer to Figure 2, the cover body 210 includes a cover plate 211 and a cover body side wall 212 connected to the edge of the cover plate 211, the cover plate 211 and the cover body side wall 212 form a frame structure with one end open, the bottom guard plate 220 includes a guard plate bottom wall 221 and a guard plate side wall 222 connected to the edge of the guard plate bottom wall 221, the guard plate side wall 222 and the guard plate bottom wall 221 form a frame structure with one end open, the open side of the cover plate 211 and the open side of the bottom guard plate 220 cover each other and enclose to form a accommodating cavity 201.

[0138] Specifically, the bottom guard plate 220 can be made of materials such as steel or aluminum alloy, and the materials of the cover 210 and the bottom guard plate 220 can be the same or different. For example, the cover 210 and the bottom guard plate 220 can both be made of steel. This design can make the battery 10 as a whole have a higher structural strength. For another example, the cover 210 is made of stainless steel and the bottom guard plate 220 is made of aluminum alloy. This design can keep the cover 210 at a higher structural strength and effectively protect the heat exchange assembly 300 and the battery cell 100 in the accommodating cavity 201 when stepped on. The bottom guard plate 220 can be made of aluminum alloy by one-time stretching. The preparation process is simple, and the aluminum alloy material has a good thermal conductivity coefficient, which is beneficial to the heat dissipation of the battery cell 100.

[0139] In some embodiments, the cover 210 is a steel cover. The steel cover has a high structural strength and can more effectively absorb and disperse external forces, reduce the pressure on the heat exchange component 300, and thereby reduce the risk of deformation of the heat exchange component 300, thereby improving the safety performance of the battery 10.

[0140] In some embodiments, the heat exchange component 300 is an aluminum heat exchange component, which is easy to process and shape, has good thermal conductivity and is light in weight. It can reduce the processing cost of the heat exchange component 300, improve heat exchange efficiency, and is conducive to the lightweight design of the battery 10.

[0141] Referring to FIG. 1 , an embodiment of the present application provides a vehicle 1 , which includes the battery 10 described above.

[0142] In the technical solution of the embodiment of the present application, the vehicle 1 includes the battery 10 provided in the above embodiment, so that the vehicle 1 also has the technical effects corresponding to the above battery 10, which will not be repeated here.

[0143] Referring to Figures 1 to 12, in some embodiments, the battery 10 includes a battery cell 100, a box body 200, a heat exchange assembly 300, a mounting beam 400, a seat beam 500, a first expansion beam 600, a second expansion beam 700, a heat sink 800, a first fastener 410, a second fastener and a third fastener 610.

[0144] Referring to Figures 1 to 4 , the cover body 210 includes a cover plate 211 and a cover sidewall 212 connected to the outer edge of the cover plate 211. The cover sidewall 212 and the cover plate 211 form a frame structure with one end open. The bottom guard plate 220 includes a guard plate bottom wall 221 and a guard plate sidewall 222 connected to the outer edge of the guard plate bottom wall 221. The guard plate sidewall 222 and the guard plate bottom wall 221 form a frame structure with one end open. The open side of the bottom guard plate 220 overlaps the open side of the cover body 210. The bottom guard plate 220 and the cover body 210 together form a accommodating cavity 201 capable of accommodating the battery cell 100 and the heat exchange assembly 300.

[0145] Referring to Figures 3 and 4 , the cover plate 211 includes six first reinforcements 2111, seven first plates 2112, two second reinforcements 2113, and one second plate 2114. The first reinforcements 2111 and first plates 2112 extend along the length of the cover plate 211, and the six first reinforcements 2111 and the seven first plates 2112 are alternately connected across the width of the cover 210. The two second reinforcements 2113 extend along the width of the cover plate 211. One of the two second reinforcements 2113 is connected to one end of the six first reinforcements 2111 and the seven first plates 2112, while the other of the two second reinforcements 2113 is connected to the other end of the six first reinforcements 2111 and the seven first plates 2112. The second plate 2114 is connected to the side of the first reinforcements 2111 facing away from the first reinforcements 2111 and the first plates 2112. The first plate 2112 and the second plate 2114 are located in the same plane.

[0146] Please refer to Figure 4. Each first reinforcement part 2111 is provided with a first accommodating groove 21111 extending along the extension direction of the first reinforcement part 2111, and each second reinforcement part 2113 is provided with a second accommodating groove 21131 extending along the extension direction of the second reinforcement part 2113. The two ends of each first accommodating groove 21111 are respectively connected to the two second accommodating grooves 21131.

[0147] Referring to Figure 5 , the heat exchange assembly 300 includes six heat exchange tubes 310 and three manifolds 320. The six heat exchange tubes 310 are bonded to six first receiving tanks 21111, respectively. Two of the three manifolds 320 are bonded to the same second receiving tank 21131, spaced apart from each other. Each of the two manifolds 320 has a liquid inlet 321 and a liquid outlet 322. The manifold 320 with the liquid inlet 321 is in communication with the first ends of the three heat exchange tubes 310, while the manifold 320 with the liquid outlet 322 is in communication with the first ends of the other three heat exchange tubes 310. The remaining manifold 320 is disposed in another second receiving tank 21131 and is in communication with the second ends of all six heat exchange tubes 310. It should be noted that the arrows in Figure 5 indicate the flow direction of the heat exchange medium within the heat exchange assembly 300.

[0148] 4 and 12 , the vapor chamber 800 is bonded to the surfaces of the six heat exchange tubes 310 facing the battery cells 100 . At the same time, the vapor chamber 800 is bonded to the surfaces of the six first plates 2112 facing the battery cells 100 .

[0149] Please refer to Figures 1, 7 and 9. There are multiple battery cells 100, and the multiple battery cells 100 are arranged in an array along the length and width directions of the cover body 210. Each battery cell 100 is bonded to the side of the heat spreader 800 away from the cover body 210, and the pressure relief mechanisms of the positive electrode terminal and the negative electrode terminal of each battery cell 100 are set away from the heat spreader 800.

[0150] Referring to Figures 2 and 3 , there are two mounting beams 400 , both welded to the surface of the cover plate 211 facing away from the battery cells 100. Both mounting beams 400 extend along the width of the cover 210 and are spaced apart along the length of the cover 210. Each mounting beam 400 is provided with a plurality of first through-holes arranged along its length. First fasteners 410 can be passed through the first through-holes of the mounting beams 400 and then threadedly connected to first threaded holes in the vehicle frame 20 to secure the mounting beams 400 to the vehicle frame 20.

[0151] Referring to Figures 2 and 3 , there are two seat beams 500. Both seat beams 500 are welded to the surface of the cover plate 211 facing away from the battery cells 100. Both seat beams 500 extend along the width of the cover 210 and are spaced apart in the length of the cover 210. The two seat beams 500 are located between the two mounting beams 400. Each seat beam 500 has a pair of second through-holes 510 defined at each end. A second fastener can be threaded through the second through-holes 510 in the seat beam 500 and then threaded into a second threaded hole in the vehicle frame 20 to secure the seat beam 500 to the vehicle frame 20.

[0152] Referring to Figures 2 and 10 , the first expansion beam 600 and the second expansion beam 700 both extend along the width of the cover 210 and are spaced apart along the length of the cover 210. The first expansion beam 600 and the second expansion beam 700 are located on either side of the battery cell 100 along the length of the cover 210. A third threaded hole is defined in each of the first expansion beam 600 and the second expansion beam 700. The cover 210 also has a third through hole. A third fastener 610 passes through the third through hole and is threadedly connected to the third threaded hole, securing the first expansion beam 600 and the second expansion beam 700 to the side of the cover 211 facing the battery cell 100. The surface of the first expansion beam 600 facing the second reinforcement portion 2113 also has a mounting groove 601, which accommodates the bottom of the manifold 320 and allows the manifold 320 to be clamped between the first expansion beam 600 and the second reinforcement portion 2113.

[0153] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery, characterized in that: The battery comprises: Battery cells; a box body for accommodating the battery cells, the box body including a cover body, the cover body being used to serve as at least a portion of the vehicle floor, the cover body including a cover plate, the cover plate including a first reinforcement portion and at least two first plates, the first reinforcement portion being connected between two adjacent first plates and protruding from a surface of the first plate facing away from the battery cells, and a first accommodating groove being recessed on a surface of the first reinforcement portion facing the battery cells; A heat exchange assembly is at least partially embedded in the first receiving groove and is thermally connected to the battery cell.

2. The battery according to claim 1, characterized in that The heat exchange assembly includes a plurality of heat exchange tubes. The number of the first reinforcement parts is plural. The first reinforcement parts and the first plates are alternately arranged. The plurality of first accommodating grooves respectively accommodate a plurality of the heat exchange tubes.

3. The battery according to claim 2, characterized in that The heat exchange assembly further includes a manifold, which is connected to the same end of at least two of the heat exchange tubes.

4. The battery according to claim 3, characterized in that The cover plate further includes a second reinforcement portion, which is arranged to intersect with the first reinforcement portion. A second accommodating groove is recessed on a surface of the second reinforcement portion facing the battery cell, and the second accommodating groove is used to accommodate the manifold.

5. The battery according to claim 4, characterized in that The first reinforcement portion and the second reinforcement portion are perpendicular to each other.

6. The battery according to any one of claims 1 to 5, characterized in that The battery cell is connected to the first plate.

7. The battery according to claim 6, characterized in that The battery cell is connected to the heat exchange component.

8. The battery according to claim 7, characterized in that The heat exchange component is connected to the cover body.

9. The battery according to any one of claims 6 to 8, characterized in that The battery cell includes a shell and electrode terminals arranged on the wall of the shell, and a side of the shell facing away from the electrode terminals is connected to the first plate.

10. The battery according to claim 9, characterized in that The battery cell further includes a pressure relief mechanism, which is arranged on a side of the housing facing away from the cover plate.

11. The battery according to any one of claims 1 to 10, characterized in that: The battery further includes a mounting beam connected to a surface of the cover plate facing away from the battery cell, and the mounting beam is used to connect to a frame of the vehicle.

12. The battery according to any one of claims 1 to 11, characterized in that The battery further includes a seat beam connected to a surface of the cover plate facing away from the battery cell.

13. The battery according to claim 12, characterized in that The seat beam is used to connect to the frame of the vehicle.

14. The battery according to any one of claims 1 to 13, characterized in that The battery further includes a first expansion beam and a second expansion beam. The first expansion beam and the second expansion beam are connected to a side of the cover plate facing the battery cell. The battery cell is disposed between the first expansion beam and the second expansion beam.

15. The battery according to any one of claims 1 to 14, characterized in that There are multiple battery cells, and the battery further includes a heat spreader, which is arranged between the multiple battery cells and the heat exchange component.

16. The battery according to any one of claims 1 to 15, characterized in that The box body further includes a bottom guard plate, and the bottom guard plate and the cover body together form a receiving cavity capable of accommodating the heat exchange component and the battery cell.

17. The battery according to any one of claims 1 to 16, characterized in that The cover body is a steel cover; and / or the heat exchange component is an aluminum heat exchange component.

18. A vehicle comprising the battery according to any one of claims 1 to 17.

Images