Battery apparatus, energy storage apparatus, energy storage system, and electric apparatus

Abstract

The present application provides a battery apparatus, an energy storage apparatus, an energy storage system, and an electric apparatus. The battery apparatus (200) comprises a case (20), battery cells (30), and a thermal management component (40). The thermal management component (40) comprises a heat exchange main body (41) and first pipe members (42). A flow channel is arranged in the heat exchange main body (41), the first pipe members (42) are communicated with the flow channel, and the first pipe members (42) are arranged outside of an accommodating space (201) of the case (20). The first pipe members (42) of the thermal management component (40) are arranged outside of the accommodating space (201), so as to reduce the space occupied within the case (20), improving the volume utilization rate of the case (20).

Description

Battery devices, energy storage devices, energy storage systems and electrical appliances Technical Field

[0001] This application belongs to the field of battery technology, and more specifically, relates to a battery device, an energy storage device, an energy storage system, and an electrical device. Background Technology

[0002] The statements herein are provided only as background information relevant to this application and do not necessarily constitute prior art. Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] Current battery devices often use thermal management components with flow channels to control the temperature of individual battery cells. However, these thermal management components require connecting pipes that extend from a designated location within the battery device to connect to an external heat exchanger temperature control circuit. These pipes often occupy space within the battery device's housing, resulting in low volume utilization of the battery device.

[0004] Application content

[0005] The purpose of this application is to provide a battery device, energy storage device, energy storage system, and power consumption device to improve the problem of low volume utilization rate of battery devices in related technologies.

[0006] In a first aspect, embodiments of this application provide a battery device, including:

[0007] The container has storage space;

[0008] The individual battery cells are housed within the storage space;

[0009] The thermal management component includes a heat exchange body and a first pipe. The heat exchange body has a flow channel inside, and the first pipe connects to the flow channel. The heat exchange body is located in the receiving space and is used to exchange heat with the battery cells. The first pipe is located on the outside of the receiving space.

[0010] In the technical solution of this application embodiment, the heat exchange body of the thermal management component is placed in the housing space of the box, and the first pipe is connected to both ends of the flow channel of the heat exchange body to connect to the external heat exchange liquid temperature control circuit so as to control the temperature of the heat exchange liquid in the thermal management component and thereby regulate the temperature of the battery cell; the first pipe is placed outside the housing space to reduce the space occupied inside the box and improve the volume utilization rate of the box.

[0011] In some embodiments, the enclosure includes a top cover, a frame, and a bottom plate, the top cover and the bottom plate being connected to opposite sides of the frame to form an accommodating space, the enclosure including a first direction along the top cover to the bottom plate; and a first tube disposed on the side of the frame opposite to the accommodating space along a direction perpendicular to the first direction.

[0012] By placing the first tube on the side of the frame that is perpendicular to the first direction and away from the receiving space, the battery device can occupy less vertical space.

[0013] In some embodiments, a mounting beam is provided on the outer side of the frame, and a cavity is provided in the mounting beam; at least a portion of the first pipe is disposed in the cavity.

[0014] A mounting beam is provided for installing and using the battery device; a cavity is provided in the mounting beam to reduce the weight of the mounting beam; and the first tube is at least partially set in the cavity, which can effectively utilize the space of the cavity, better reduce the overall volume of the battery device, and improve the volume utilization rate.

[0015] In some embodiments, the mounting beam is provided with mounting holes, which are offset from the first pipe along the direction from the receiving space to the cavity.

[0016] Setting mounting holes on the mounting beam facilitates the connection between the mounting beam and the supporting medium for the use of the battery device; the mounting holes are staggered from the first pipe to reduce the risk of the first pipe obstructing the mounting holes, and the first pipe passes through the cavity of the mounting beam without affecting the use of the mounting holes.

[0017] In some embodiments, the frame and the mounting beam are integrally formed.

[0018] Integrating the frame and mounting beam into a single unit facilitates processing and manufacturing, reduces costs, and improves production efficiency.

[0019] In some embodiments, the first tube is fixedly connected to the sidewall forming the cavity.

[0020] The first pipe is fixedly connected to the side wall of the cavity to secure it and reduce vibration and wear during use.

[0021] In some embodiments, the mounting beam is provided with a locking fastener; the first pipe is fixed to the side wall of the cavity by the locking fastener; and / or, the first pipe is bonded to the side wall of the cavity.

[0022] The first pipe fitting is connected to the mounting beam using fasteners, making the connection and fixation convenient.

[0023] The first pipe fitting is bonded to the side wall of the cavity, ensuring a secure connection.

[0024] In some embodiments, the thermal management component includes a first pipe connector connected to a first pipe fitting, the first pipe connector passing through the housing and connected to the heat exchange body.

[0025] The first pipe fitting is provided and can be easily connected to the heat exchanger body through the box, so as to connect the corresponding end of the first pipe fitting to the flow channel inside the heat exchanger body. The connection is convenient and it is also convenient to set the first pipe fitting outside the box.

[0026] In some embodiments, the first pipe fitting is provided with a first flange, and the first flange is sealed to the housing.

[0027] A first flange is installed on the first pipe joint to facilitate connection with the housing, which can easily seal the first flange with the housing, thereby sealing the first pipe joint with the housing.

[0028] In some embodiments, the battery device includes a protective cover that covers the portion of the first connector that extends out of the housing and is mounted on the housing.

[0029] A protective cover is installed over the first pipe joint to protect the portion of the first pipe joint that extends out of the housing.

[0030] In some embodiments, the protective cover includes a cover portion and a connecting portion connected to the cover portion. The connecting portion is connected to the housing, and the cover portion is provided with a receiving groove adapted to accommodate a portion of the first pipe connector extending out of the housing.

[0031] A protective cover is provided to cover the portion of the first pipe connector that extends out of the housing. A receiving groove is provided in the protective cover to accommodate the first pipe connector, so that the protective cover is fitted onto the corresponding portion of the first pipe connector. A connecting part is provided to connect with the housing, so that the protective cover is installed on the housing, thereby protecting the first pipe connector.

[0032] In some embodiments, the heat exchange body is provided with connectors at both ends of the flow channel, and the connectors are connected to the corresponding first pipe joints.

[0033] Connectors are provided on the heat exchanger body to facilitate connection to the first pipe fitting and make assembly easier.

[0034] In some embodiments, the first pipe fitting is connected to the corresponding connector via a second pipe fitting.

[0035] By installing a second pipe fitting and connecting its two ends to the first pipe fitting and corresponding connector, the connection can be made easier, the assembly can be completed more easily, and the assembly efficiency can be improved.

[0036] In some embodiments, the second pipe includes a soft layer and a hard layer, with the soft layer disposed on the inner surface of the hard layer.

[0037] The second pipe fitting has a rigid layer to give it good structural strength so that it can connect the first pipe joint and the connector. The inner surface of the rigid layer has a soft layer to achieve a good seal with the first pipe joint and the connector.

[0038] In some embodiments, a second pipe fitting is connected to the end of each first pipe fitting away from the heat exchange body.

[0039] A second pipe fitting is provided to facilitate connection to the external heat exchange fluid temperature control circuit, thereby making it easier to connect the first pipe fitting to the external heat exchange fluid temperature control circuit.

[0040] In some embodiments, the second pipe fitting is provided with a second flange, which is connected to the housing.

[0041] A second flange is installed on the second pipe joint, and the second flange is connected to the housing. This allows the second pipe joint to be fixed to the housing, facilitating connection to the external heat exchange fluid temperature control circuit.

[0042] In some embodiments, the heat exchange body includes a heat exchange plate that contacts the surface with the largest area of ​​the battery cell, and the heat exchange plate has flow channels.

[0043] By installing heat exchange plates to make contact with the largest surface area of ​​the battery cells, heat exchange between the battery cells can be carried out more quickly, improving the efficiency of regulating the temperature of the battery cells.

[0044] In some embodiments, there are multiple heat exchange plates, which are arranged along the second direction; the liquid inlet ends of two adjacent heat exchange plates are connected by a third pipe, and the liquid outlet ends of two adjacent heat exchange plates are connected by a fourth pipe, both of which are located within the accommodating space.

[0045] Multiple heat exchange plates can be installed to increase the heat exchange area and regulate the temperature of individual battery cells in the housing more quickly. Arranging the heat exchange plates along the second direction facilitates their assembly. Using a third fitting to connect the liquid inlet ends of two adjacent heat exchange plates and a fourth fitting to connect the liquid outlet ends of two adjacent heat exchange plates allows the flow channels of multiple heat exchange plates to be connected in parallel. Therefore, only one end of each heat exchange plate needs to be connected to two first fittings, making the connection convenient. Placing the third and fourth fittings inside the housing allows the flow channels of multiple heat exchange plates to be connected in parallel within the housing, facilitating communication with the first fittings outside the housing. Furthermore, the housing protects the third and fourth fittings, reducing the impact of external structures on them and ensuring a more stable connection between the third and fourth fittings and the heat exchange plates.

[0046] In some embodiments, the liquid inlet and liquid outlet are located at opposite ends of the heat exchange plate; or, the liquid inlet and liquid outlet are located at the same end of the heat exchange plate.

[0047] The inlet and outlet are located at opposite ends of the heat exchange plate. The dimensions of both the inlet and outlet can be set to be large. Correspondingly, the dimensions of the third and fourth pipe fittings can also be set to be large to reduce the flow resistance of the heat exchange fluid, facilitate the entry and exit of the heat exchange fluid into each heat exchange plate, and improve the heat exchange efficiency.

[0048] The liquid inlet and liquid outlet are located at the same end of the heat exchange plate, which can further reduce the space occupied and improve the volume utilization rate.

[0049] In some embodiments, at least one third fitting connects at least three heat exchange plates, or a third fitting is provided between each of two adjacent heat exchange plates.

[0050] Connecting at least one third fitting to at least three heat exchange plates can reduce the number of third fittings required.

[0051] A third pipe fitting is installed between each of two adjacent heat exchange plates to connect the liquid inlet ends of the two heat exchange plates, which facilitates the placement of the heat exchange plates, allows for flexible layout, and makes it easy to adjust the number of heat exchange plates.

[0052] In some embodiments, at least one fourth fitting connects at least three heat exchange plates, or a fourth fitting is provided between each of two adjacent heat exchange plates.

[0053] Connecting at least one fourth fitting to at least three heat exchange plates can reduce the number of fourth fittings required.

[0054] A fourth pipe fitting is installed between each of two adjacent heat exchange plates to connect the liquid outlet ends of the two heat exchange plates, which facilitates the placement of the heat exchange plates, allows for flexible layout, and makes it easy to adjust the number of heat exchange plates.

[0055] Secondly, embodiments of this application provide an energy storage device, including a battery device as described in the above embodiments, the battery device being used to store or provide electrical energy.

[0056] Thirdly, embodiments of this application provide an energy storage system, including a power conversion device and an energy storage device as described in the above embodiments, wherein the power conversion device is electrically connected between the power generation device and the energy storage device.

[0057] Fourthly, embodiments of this application provide an electrical device, including a battery device as described in the above embodiments, an energy storage device as described in the above embodiments, or an energy storage system as described in the above embodiments, wherein the battery device is used to store or provide electrical energy.

[0058] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 is a schematic diagram of the vehicle structure according to some embodiments of this application;

[0061] Figure 2 is a schematic diagram of the structure of a charging network according to some embodiments of this application;

[0062] Figure 3 is a schematic diagram of the structure of an energy storage system according to some embodiments of this application;

[0063] Figure 4 is a schematic diagram of the structure of an energy storage device according to some embodiments of this application;

[0064] Figure 5 is an exploded structural diagram of a battery device according to some embodiments of this application;

[0065] Figure 6 is a side view of a battery device according to some embodiments of this application;

[0066] Figure 7 is a side view of the battery device in Figure 6 with the protective cover removed;

[0067] Figure 8 is a top view of the battery device in Figure 7 with the top cover removed;

[0068] Figure 9 is an enlarged structural diagram of part A in Figure 8;

[0069] Figure 10 is a schematic cross-sectional view of the structure along line BB in Figure 9;

[0070] Figure 11 is an enlarged structural diagram of part C in Figure 8;

[0071] Figure 12 is a schematic diagram of the three-dimensional structure of part C in Figure 8;

[0072] Figure 13 is a schematic cross-sectional view of the DD line in Figure 8;

[0073] Figure 14 is a schematic cross-sectional view of the EE line in Figure 8;

[0074] Figure 15 is a partial structural schematic diagram of a battery device according to some embodiments of this application;

[0075] Figure 16 is a schematic diagram of the structure of the protective cover according to some embodiments of this application;

[0076] Figure 17 is a partial structural schematic diagram of a battery device according to some other embodiments of this application;

[0077] Figure 18 is a schematic diagram of the structure of the protective cover according to some other embodiments of this application.

[0078] The main labels in the attached figures are as follows: 11. Vehicle; 111. Controller; 112. Motor; 12. Charging network; 121. Charging pile; 122. Connector; 13. Energy storage system; 131. Power conversion device; 132. Power generation device; 14. Energy storage device; 141. Cabinet; 200. Battery unit; 20. Box; 21. Top cover; 22. Base plate; 23. Frame; 231. Side beam; 2311. Opening; 24. Reinforcing beam; 241. Mounting beam; 2411. Cavity; 2412. Mounting hole; 2413. Locking fastener; 242. Expansion beam; 30. Battery cell; 40. Thermal management component; 41. Heat exchanger body; 411. Heat exchange plate; 4111. Connector; 42. First pipe fitting; 43. First pipe fitting; 431, First flange; 44, Second pipe fitting; 441, Second flange; 45, Second pipe fitting; 451, Soft layer; 452, Hard layer; 46, Third pipe fitting; 47, Fourth pipe fitting; 50, Protective cover; 51, Protective cover part; 511, Receptacle; 52, Connecting part; 53, Extension part; X, Length direction; Y, Width direction; Z, Height direction. Embodiments of the present invention

[0079] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0081] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0082] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments in any suitable manner.

[0083] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0084] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0085] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0086] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces). "Several" means one or more, unless otherwise explicitly specified.

[0087] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0088] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0089] In the description of the embodiments of this application, unless otherwise expressly specified and limited, when an element is referred to as "fixed to" or "set on" another element, it may be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it may be directly connected to or indirectly connected to the other element.

[0090] In the description of the embodiments in this application, unless otherwise expressly specified and limited, the technical term "proximity" refers to being close in location. For example, among three components A1, A2, and B, the distance between A1 and B is greater than the distance between A2 and B. Therefore, A2 is closer to B than A1, meaning A2 is adjacent to B, or B is adjacent to A2. Similarly, when there are multiple components C, namely C1, C2, ..., C... N If one of the C components, such as C2, is closer to the B component than the other C components, then B is adjacent to C2, or C2 is adjacent to B.

[0091] The performance of individual battery cells is significantly affected by ambient temperature. In low-temperature environments, the charging and discharging performance of battery cells decreases, thus requiring heating. Conversely, high ambient temperatures can compromise the safety of battery cells. Furthermore, battery cells generate heat during operation; if this heat is not dissipated promptly, it can lead to overheating and safety risks. Therefore, cooling measures are necessary when battery cell temperatures are high. Consequently, battery systems often incorporate thermal management components to regulate the temperature of individual battery cells.

[0092] To effectively control the temperature of individual battery cells, and given the higher specific heat capacity and better heat exchange efficiency of liquid heat exchange, thermal management components in battery devices typically employ flow-channel thermal management units. Using flow-channel thermal management units requires tubing to connect to an external heat exchange fluid temperature control circuit, which regulates the temperature of the heat exchange fluid entering the thermal management unit. In current battery devices, one end of the tubing is connected to the thermal management unit, while the other end is bent to a predetermined position for connection to the external heat exchange fluid temperature control circuit. However, this tubing occupies internal space within the battery device housing, resulting in low volume utilization of the battery device.

[0093] Based on the above considerations, in order to improve the low volume utilization rate of battery devices in related technologies, this application provides a battery device in which the heat exchange body of the thermal management component is disposed inside the housing for heat exchange with the individual battery cells. First pipes are connected to both ends of the flow channel of the heat exchange body to connect to an external heat exchange fluid temperature control circuit, thereby connecting the flow channel of the heat exchange body to the external heat exchange fluid temperature control circuit to control the temperature of the heat exchange fluid in the heat exchange body, and thus regulate the temperature of the individual battery cells. Furthermore, the first pipes are disposed outside the housing space of the housing to reduce the occupation of the internal space of the housing and improve the volume utilization rate of the housing.

[0094] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0095] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0096] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use individual battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0097] For ease of explanation, an electrical device is provided in one embodiment of this application, which is illustrated using a vehicle as an example.

[0098] Please refer to Figure 1, which is a schematic diagram of the structure of a vehicle 11 provided in some embodiments of this application. The vehicle 11 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery device 200 is installed inside the vehicle 11, and the battery device 200 can be located at the bottom, front, or rear of the vehicle 11. The battery device 200 can be used to power the vehicle 11; for example, the battery device 200 can serve as the operating power source for the vehicle 11. The vehicle 11 may also include a controller 111 and a motor 112. The controller 111 is used to control the battery device 200 to supply power to the motor 112, for example, to meet the power needs of the vehicle 11 during starting, navigation, and driving.

[0099] In some embodiments, the battery device 200 can not only serve as the operating power source for the vehicle 11, but also as the driving power source for the vehicle 11, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 11.

[0100] Referring to Figure 2, this embodiment of the application provides a charging network 12, including a charging pile 121 and an energy storage device 14. The charging pile 121 is electrically connected to the energy storage device 14, which provides electrical energy to the charging pile 121. The charging pile 121 is electrically connected to a battery device 200 in the energy storage device 14 via a cable, and the battery device 200 can provide its stored electrical energy to the charging pile 121. The charging pile 121 has one or more connectors 122 for connecting to electrical equipment (such as a vehicle 11), thereby enabling the charging equipment to be recharged.

[0101] The energy storage device 14 can be located inside the charging pile 121 (e.g., an integrated energy storage and charging unit) or outside the charging pile 121.

[0102] In some embodiments, the charging network 12 may include a charging pile 121 and an energy storage system. The charging pile 121 is electrically connected to the energy storage system, which provides electrical energy to the charging pile 121. The charging pile 121 is electrically connected to a battery device 200 in the energy storage system via a cable, and the battery device 200 can provide its stored electrical energy to the charging pile 121.

[0103] Referring to Figure 3, this application provides an energy storage system 13. The energy storage system 13 may include one or more energy storage devices 14 and a power converter system (PCS). The power converter system 131 is connected between a power generation device 132 and an energy storage device 14. The power generation device 132 generates electrical energy, which can be stored in the energy storage device 14 through the power converter system 131. As an example, the power generation device 132 may be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, etc. The specific type of the power generation device 132 is not limited in this application.

[0104] Referring to Figure 4, this embodiment of the application provides an energy storage device 14, including one or more battery clusters to improve the voltage and capacity of the energy storage device 14. The battery cluster may include one or more battery devices 200, and multiple battery devices 200 are connected in series via a busbar to increase the voltage of the energy storage device 14. When the energy storage device 14 includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device 14.

[0105] The energy storage device 14 can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device 14 can store electrical energy as needed and output it when appropriate. For example, the energy storage device 14 can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. The energy storage system 13 provided in this application embodiment can be any power system that requires the use of the energy storage device 14.

[0106] In some embodiments, the energy storage device 14 is an energy storage cabinet. Of course, the energy storage device 14 can also be an energy storage container.

[0107] In some embodiments, the energy storage device 14 may include a cabinet 141 and one or more battery clusters housed within the cabinet 141. Alternatively, the energy storage device 14 may also include one or more battery devices 200, which are directly housed within the cabinet 141.

[0108] In some embodiments, the energy storage device 14 may include modules such as a thermal management module, a main control module, a central control module, a power distribution module, and a fire protection module.

[0109] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device 200 via piping to regulate the temperature of the individual battery cells.

[0110] As an example, the main control module can serve as the battery management unit for the battery cluster, used to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster. For instance, it can control the charging and discharging current and voltage of the battery cluster. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0111] As an example, the central control module can serve as the battery management unit of the energy storage device 14, used to monitor and manage the energy storage device 14. The central control module can monitor information such as current, voltage, power, state of charge, or temperature of the energy storage device 14. For example, it can control the charging and discharging current and voltage of the energy storage device 14. As an example, the central control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0112] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., for detecting, alarming or extinguishing fires in the energy storage system 13.

[0113] As an example, the power distribution module can be used to distribute power to the modules in the energy storage device 14 that require electricity.

[0114] Referring to Figure 5, this application embodiment provides a battery device 200. The battery device 200 may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells 30, which are connected in series, parallel, or mixed connections via a busbar.

[0115] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells 30.

[0116] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells 30 together to form an independent module. As an example, a battery module can be formed by bundling multiple battery cells 30 together with cable ties.

[0117] In some embodiments, the battery device 200 may be a battery pack, which includes a housing 20 and one or more individual battery cell assemblies housed within the housing 20.

[0118] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the housing 20 by fixing the battery module in the housing 20.

[0119] As an example, the battery cell assembly can also be housed in the housing 20 by directly fixing multiple battery cells 30 to the housing 20.

[0120] In some embodiments, the housing 20 may include a top cover 21, a frame 23, and a bottom plate 22. The top cover 21 and the bottom plate 22 are respectively connected to opposite sides of the frame 23, thereby forming an accommodating space 201 inside the housing 20 to accommodate the battery cells 30. The frame 23 refers to the partial structure forming the peripheral sidewall of the housing 20, the top cover 21 refers to the plate-like structure forming the top of the housing 20, and the bottom plate 22 refers to the plate-like structure forming the bottom of the housing 20.

[0121] In some embodiments, the housing 20 may include a first housing and a second housing, which are fastened together to form a closed space inside the housing 20 to house the battery cells 30. Here, "closed" refers to covering or shutting down; it can be sealed or unsealed. The first housing may be a top cover or a bottom plate of the housing 20. Both the first and second housings may also be hollow structures with an opening on one side, with the opening side of the first housing fitting over the opening side of the second housing.

[0122] In some embodiments, the box body 20 includes a reinforcing beam 24 connected to the frame 23. The reinforcing beam 24 is a structural member provided on the box body 20 to increase the structural strength of the box body 20. The reinforcing beam 24 is provided and connected to the frame 23 to enhance the structural strength of the box body 20.

[0123] In some embodiments, the reinforcing beam 24 includes a mounting beam 241, which is fixedly connected to the frame 23 and is used to connect an external device using the battery device 200 to support the battery device 200 on the device.

[0124] In some embodiments, the reinforcing beam 24 includes an expansion beam 242, which is installed inside the housing 20 to increase the structural strength of the housing 20 and can also be used to support the battery cell 30 to limit the expansion deformation of the battery cell 30.

[0125] In some embodiments, the expansion beam 242 may also be connected to the bottom plate 22 of the box 20 to better fix the expansion beam 242 in the box 20.

[0126] In some embodiments, the frame 23 can be formed by connecting multiple side beams 231, resulting in a simple structure and easy assembly. Side beams 231 refer to beams, columns, or plates that form the side walls of the frame 23. In some embodiments, the frame 23 can also be cast to ensure a strong connection between the sides of the frame 23 and facilitate manufacturing.

[0127] In some embodiments, the expansion beam 242 and the frame 23 can be an integral structure, that is, the frame 23 can serve the function of the expansion beam 242. Of course, in some embodiments, the expansion beam 242 can also be manufactured separately and then placed in the box body 20.

[0128] In some embodiments, the housing 20 may be part of the vehicle's chassis structure. For example, a portion of the housing 20 may be at least a portion of the vehicle's floor, or a portion of the housing 20 may be at least a portion of the vehicle's crossbeams and longitudinal beams.

[0129] Please refer to Figure 5. The housing 20 has a length direction X, a width direction Y, and a height direction Z. Since the housing 20 defines the shape of the battery device 200, the length direction X is also the length direction of the battery device 200, the width direction Y is also the width direction of the battery device 200, and the height direction Z is also the height direction of the battery device 200.

[0130] Please refer to Figures 5 to 9. According to some embodiments of this application, this application provides a battery device 200, including a housing 20, a battery cell 30, and a thermal management component 40. The housing 20 has a receiving space 201. The battery cell 30 is disposed in the receiving space 201. The thermal management component 40 includes a heat exchange body 41 and a first pipe 42. The heat exchange body 41 is provided with a flow channel. The first pipe 42 is connected to the flow channel. The two ends of the flow channel are respectively connected to the first pipe 42. The heat exchange body 41 is disposed in the receiving space 201 of the housing 20 and is used to exchange heat with the battery cell 30. The first pipe 42 is disposed on the outside of the receiving space 201.

[0131] The housing 20 refers to the shell structure that forms the outer shape of the battery device 200. The accommodating space 201 refers to the internal space enclosed by the housing 20.

[0132] The battery cell 30 is the smallest unit in the battery device 200 for storing and releasing energy. The battery cell 30 is housed in the housing space 201 and is supported and protected by the housing 20.

[0133] Thermal management component 40 refers to the component used to control the temperature of an object. Heat exchanger body 41 refers to the component within thermal management component 40 used to exchange heat with the object to regulate its temperature. Heat exchanger body 41 can be a pipe, a plate with internal flow channels, etc. Heat exchanger body 41 can be made of metal materials such as aluminum, copper, or steel. The battery device 200 is equipped with thermal management component 40, and thermal management component 40 is equipped with heat exchanger body 41, in order to control the temperature of the battery cells 30 and keep the battery cells 30 at a suitable operating temperature.

[0134] A flow channel is a passageway through which fluid can flow. A flow channel is provided in the heat exchange body 41 so that the heat exchange fluid can enter the heat exchange body 41 to exchange heat with the battery cell 30, and the heat exchange fluid can flow out of the heat exchange body 41 after heat exchange.

[0135] The first fitting 42 refers to the fitting in the heat management component 40 used to connect to the external heat exchange fluid temperature control circuit. The first fitting 42 can be a metal pipe or a plastic pipe. The cross-section of the first fitting 42 can be circular, elliptical, polygonal, or other shapes.

[0136] The external heat exchange fluid temperature control circuit, also known as the temperature control circuit, refers to a system located outside the battery device 200, used to control the temperature of the heat exchange fluid entering the battery device 200. The heat exchange fluid is a liquid used to enter the battery device 200 to exchange heat with the battery cells 30 and other devices in the battery device 200. The heat exchange fluid can be water, oil, or other liquids that can be used for heat exchange.

[0137] The two sets of first pipe fittings 42 refer to the fact that there are two sets of first pipe fittings 42. One set of first pipe fittings 42 is used to connect the heat exchange fluid supply end of the temperature control loop to one end of the flow channel of the heat exchange body 41, so that the heat exchange fluid supplied by the temperature control loop can enter the flow channel of the heat exchange body 41 from one set of first pipe fittings 42; the other set of first pipe fittings 42 is used to connect the heat exchange fluid return end of the temperature control loop to the other end of the flow channel of the heat exchange body 41, so that the heat exchange fluid after heat exchange in the heat exchange body 41 can flow back to the temperature control loop from the other set of first pipe fittings 42. Each set of first pipe fittings 42 can be a single pipe fitting or multiple pipe fittings. When there is only one heat exchange body 41 and only one flow channel is provided inside it, one set of first pipe fittings 42 can be a single pipe fitting. Accordingly, there are two sets of first pipe fittings 42, which together have two first pipe fittings 42. When there are multiple heat exchanger bodies 41 or multiple flow channels, a set of first pipe fittings 42 can have multiple pipes. Two sets of first pipe fittings 42 are arranged in pairs, with each pair connecting the two ends of one flow channel to the supply and return ends of the temperature control loop. When there are multiple heat exchanger bodies 41 or multiple flow channels, these flow channels can be connected in series using pipe fittings, i.e., multiple flow channels connected in series. Correspondingly, two first pipe fittings 42 can be used to connect the two ends of the series-connected flow channels to the supply and return ends of the temperature control loop, so a set of first pipe fittings 42 can be a single pipe fitting. When there are multiple heat exchanger bodies 41 or multiple flow channels, the two ends of these flow channels can also be connected separately using pipe fittings, i.e., multiple flow channels connected in parallel. Correspondingly, two first pipe fittings 42 can be used to connect the two ends of the parallel flow channels to the supply and return ends of the temperature control loop, so a set of first pipe fittings 42 can be a single pipe fitting, and two sets of first pipe fittings 42 can have a total of two first pipe fittings 42.

[0138] Both sets of first pipe fittings 42 are located on the outside of the accommodating space 201. This means that each first pipe fitting 42 is located outside the accommodating space 201. For example, it can be located outside the box 20, or it can be located in the space formed inside the beam, frame or other structure that forms the box 20. If the frame 23 of the box 20 is made of profile, the first pipe fitting 42 can be located in the internal space of the profile to reduce the internal space occupied by the box 20 and improve the volume utilization rate of the battery device 200.

[0139] In use, the first pipe 42 is connected to the external heat exchange fluid temperature control circuit. The heat exchange fluid supplied by the temperature control circuit enters the flow channel of the heat exchange body 41 through the first pipe 42 to exchange heat with the battery cells 30 in the housing 20, so as to heat or cool the battery cells 30, thereby regulating the temperature of the battery cells 30. After exchanging heat with the battery cells 30, the heat exchange fluid flows back to the temperature control circuit from another set of first pipe 42. After the temperature control circuit regulates the temperature, it is then supplied to the thermal management component 40, which can realize the recycling of heat exchange fluid.

[0140] In the technical solution of this application embodiment, the heat exchange body 41 of the thermal management component 40 is disposed in the accommodating space 201 of the housing 20, and the first pipe 42 is connected to both ends of the flow channel of the heat exchange body 41. The external heat exchange liquid temperature control circuit is connected through the first pipe 42 to control the temperature of the heat exchange liquid in the thermal management component 40, thereby regulating the temperature of the battery cell 30. The first pipe 42 is disposed outside the housing 20 to reduce the space occupied inside the housing 20 and improve the volume utilization rate of the housing 20.

[0141] In some embodiments, please refer to Figures 5 to 7, the housing 20 includes a first direction from the top cover 21 to the bottom plate 22; a first tube 42 is disposed on the side of the frame 23 opposite to the receiving space 201 along a direction perpendicular to the first direction.

[0142] The first direction is from the top cover 21 to the bottom plate 22. Since the direction from the top cover 21 to the bottom plate 22 is also the height direction Z of the box, the first direction is parallel to the height direction Z, or the first direction is the height direction Z. Correspondingly, the direction perpendicular to the first direction is perpendicular to the height direction Z of the box 20.

[0143] Along a direction perpendicular to the first direction, the first tube 42 is disposed on the side of the frame 23 opposite to the receiving space 201. Thus, the first tube 42 is located outside the receiving space 201, and is disposed on the outer side of the frame 23 along a direction perpendicular to the height direction Z. This reduces the space occupied by the first tube 42 in the height direction Z, resulting in a smaller height space occupied by the battery device 200. In some embodiments, referring to Figures 5 to 7, the first tube 42 is disposed on the frame 23.

[0144] The first pipe fitting 42 is located on the frame 23, meaning that the first pipe fitting 42 is located on the outside of the frame 23. It can be directly fixed to the frame 23, or it can be supported on the outside of the frame 23 by a bracket, fastener or other structure, so that the first pipe fitting 42 is located on the side of the box 20 at the corresponding position.

[0145] By placing the first tube 42 on the frame 23 and supporting the first tube 42 through the frame 23, the battery device 200 can occupy less height space.

[0146] In some embodiments, referring to Figures 5 to 7, the first pipe 42 may also be disposed on the top of the housing 20. In some embodiments, the first pipe 42 may also be disposed on the bottom of the housing 20. Of course, at least one first pipe 42 may be disposed on the top of the housing 20, and the remaining first pipes 42 may be disposed on the bottom or side of the housing 20. Alternatively, at least one first pipe 42 may be disposed on the side of the housing 20, and the remaining first pipes 42 may be disposed on the bottom and / or top of the housing 20.

[0147] In some embodiments, multiple first tubes 42 may be disposed on the same side of the frame 23 to make the structure of the battery cell 30 more compact.

[0148] In some embodiments, multiple first pipe fittings 42 may be provided on different sides of the frame 23 to facilitate connection to an external heat exchange fluid temperature control circuit and adapt to different usage needs.

[0149] In some embodiments, please refer to Figures 5 to 10, a mounting beam 241 is provided on the outer side of the frame 23, and a cavity 2411 is provided in the mounting beam 241; at least a portion of the first pipe 42 is disposed in the cavity 2411.

[0150] Cavity 2411 refers to the structure with holes in the mounting beam 241.

[0151] "At least a portion of the first pipe 42 is disposed within the cavity 2411" means that one end of the first pipe 42 passes through the cavity 2411, such that a portion of the first pipe 42 is located within the cavity 2411.

[0152] A mounting beam 241 is provided for installing and using the battery device 200; a cavity 2411 is provided in the mounting beam 241 to reduce the weight of the mounting beam 241; and the first tube 42 is at least partially provided in the cavity 2411, which can effectively utilize the space of the cavity 2411, better reduce the overall volume of the battery device 200, and improve the volume utilization rate.

[0153] In some embodiments, mounting beams 241 can be installed on all four sides of the frame 23 so that all four sides of the frame 23 can be connected to the support medium to securely fix the battery device 200. Of course, during installation and use, the mounting beams 241 on several sides of the frame 23 can also be selectively connected to the support medium.

[0154] In some embodiments, if a mounting beam 241 is provided on the side of the frame 23 where the first pipe 42 is located, the first pipe 42 may also be provided on the outside of the mounting beam 241.

[0155] In some embodiments, please refer to Figures 5, 8 to 10 and 14. The mounting beam 241 is provided with mounting holes 2412, which are offset from the first pipe 42 along the direction from the accommodating space 201 to the cavity 2411.

[0156] Mounting hole 2412 refers to a through hole structure provided along the height direction Z on the mounting beam 241. By providing mounting hole 2412 on the mounting beam 241, fasteners such as bolts can be used to pass through mounting hole 2412 to connect with the support medium, thereby mounting the battery device 200 on the support medium.

[0157] Since the accommodating space 201 is the internal space enclosed by the frame 23, and the cavity 2411 is the space in the hanging beam 241 on the outer side of the frame 23, the direction from the accommodating space 201 to the cavity 2411 is along the direction perpendicular to the height direction Z, and from the inside to the outside of the frame 23.

[0158] Along the direction from the receiving space 201 to the cavity 2411, the mounting hole 2412 is offset from the first pipe 42. That is, along the direction perpendicular to the height of the housing 20 and from the inside to the outside of the frame 23, the mounting hole 2412 is offset from the first pipe 42 to reduce the risk of the first pipe 42 obstructing the mounting hole 2412. As an example, the mounting hole 2412 may be located on the side of the first pipe 42 away from the receiving space 201. As an example, the mounting hole 2412 may be located on the side of the first pipe 42 closer to the receiving space 201.

[0159] The mounting hole 2412 is provided on the mounting beam 241 to facilitate the connection between the mounting beam 241 and the supporting medium for the use of the battery device 200. The mounting hole 2412 is offset from the first pipe 42 to reduce the risk of the first pipe 42 blocking the mounting hole 2412. The first pipe 42 passes through the cavity 2411 of the mounting beam 241 and will not affect the use of the mounting hole 2412.

[0160] In some embodiments, the mounting beam 241 may also be welded or bonded to the supporting medium.

[0161] In some embodiments, please refer to Figures 5, 14 and 15, the frame 23 and the mounting beam 241 are integrally formed.

[0162] The frame 23 and the mounting beam 241 are integrally formed, meaning that the frame 23 and the mounting beam 241 are manufactured as a single piece. This facilitates processing and manufacturing, reduces costs, and improves production efficiency. As an example, the frame 23 and the mounting beam 241 can be integrally rolled or integrally cast.

[0163] In some embodiments, referring to Figures 5, 14 and 15, when the frame 23 includes a side beam 231, the mounting beam 241 is mounted on the side beam 231 of the frame 23, and the side beam 231 and the mounting beam 241 thereon may be integrally formed.

[0164] The phrase "the edge beam 231 and the mounting beam 241 are integrally formed" means that the edge beam 231 and the mounting beam 241 mounted on it are integrally formed, such as using a single profile to manufacture the edge beam 231 and the mounting beam 241. Alternatively, materials such as steel, steel-aluminum composites, or aluminum alloys can be rolled to form the beam-column structure, with one part serving as the edge beam 231 and the other part as the mounting beam 241.

[0165] In some embodiments, the mounting beam 241 can also be manufactured separately and then welded to the side beam 231 or connected and fixed using fasteners such as bolts.

[0166] In some embodiments, as shown in Figures 10 and 14, the first tube 42 is fixedly connected to the sidewall forming the cavity 2411.

[0167] The sidewalls forming the cavity 2411 refer to the part of the structure in the hanging beam 241 that encloses the cavity 2411.

[0168] The first pipe 42 is fixedly connected to the side wall of the cavity 2411 to secure the first pipe 42 and reduce vibration and wear during use.

[0169] In some embodiments, please refer to Figures 10 and 14, the mounting beam 241 is provided with a locking fastener 2413; the first pipe 42 is fixed to the side wall of the cavity 2411 by the locking fastener 2413.

[0170] The locking component 2413 refers to the structural component used to fix the first pipe fitting 42. The locking component 2413 can be a cable tie, a buckle, or other similar structure.

[0171] The first pipe 42 is connected to the mounting beam 241 using fastener 2413, which is convenient for connection and fixation. In addition, using fastener 2413 to connect the first pipe 42 also makes it easy to disassemble for maintenance of the first pipe 42.

[0172] In some embodiments, referring to Figures 10 and 14, the first tube 42 is bonded to the sidewall of the cavity 2411. This can be achieved using double-sided tape, a curing adhesive, or similar materials. Bonding the first tube 42 to the sidewall of the cavity 2411 ensures a secure connection.

[0173] In some embodiments, the first tube 42 can be bonded to the side wall of the forming cavity 2411, and the first tube 42 can be fixed to the side wall of the forming cavity 2411 using a fastener 2413, making the connection more stable. In particular, when the first tube 42 is bonded to the side wall of the forming cavity 2411 using adhesive, the fastener 2413 can fix the first tube 42 to the side wall of the forming cavity 2411, so as to facilitate the curing of the adhesive.

[0174] In some embodiments, the thermal management component 40 includes a first pipe connector 43 connected to a first pipe fitting 42, the first pipe connector 43 passing through the housing 20 and connected to the heat exchange body 41.

[0175] The first pipe connector 43 is a connector used to connect the first pipe fitting 42 to the heat exchange body 41, so that the first pipe fitting 42 is connected to the corresponding end of the flow channel in the heat exchange body 41 via the first pipe connector 43. The first pipe connector 43 can be a quick connector or a plug-in connector, etc.

[0176] The first pipe connector 43 and the first pipe fitting 42 are in one-to-one correspondence so that each first pipe fitting 42 can be connected to the corresponding flow channel. One end of the first pipe fitting 42 is connected to the first pipe connector 43, and the first pipe connector 43 passes through the housing 20 and is connected to the corresponding end of the flow channel. That is to say, the first pipe connector 43 is set between the end of the first pipe fitting 42 and the end of the flow channel to realize the connection between the first pipe fitting 42 and the corresponding end of the flow channel; then the two sets of first pipe fittings 42 are respectively connected to the opposite ends of the flow channel through the first pipe connector 43.

[0177] The first pipe connector 43 passes through the housing 20, with one end of the first pipe connector 43 located outside the housing 20 so as to be connected to the corresponding first pipe fitting 42; the other end of the first pipe connector 43 is located inside the housing 20 so as to be connected to the heat exchange body 41, thereby connecting the first pipe fitting 42 with the flow channel of the heat exchange body 41.

[0178] The first pipe joint 43 is provided and can be easily connected to the heat exchange body 41 through the box 20, so as to connect the first pipe 42 with the corresponding end of the flow channel inside the heat exchange body 41. The connection is convenient and it is also convenient to set the first pipe 42 outside the box 20.

[0179] In some embodiments, as shown in Figures 5, 11 to 13, the frame 23 has an opening 2311 through which the first pipe fitting 43 passes.

[0180] The opening 2311 on the frame 23 refers to the opening 2311 on the side beam 231 of the frame 23. The opening 2311 refers to the through structure on the side beam 231 of the frame 23.

[0181] An opening 2311 is provided on the frame 23 so that the first pipe connector 43 extends into the interior of the housing 20 through the opening 2311 on the frame 23 to connect with the heat exchange body 41. In this way, the first pipe connector 43 can also be set on the side of the housing 20 so that the first pipe 42 and the first pipe connector 43 are both located on the side of the housing 20 in the height direction Z, thereby reducing the space occupied in the height direction Z and making the height of the battery device 200 smaller.

[0182] In some embodiments, a through hole may be provided on the top of the housing 20, such as the top cover 21, so that the first pipe connector 43 extends into the interior of the housing 20 through the through hole on the top cover 21.

[0183] In some embodiments, a through hole may be provided at the bottom of the housing 20, such as on the bottom plate 22, so that the first pipe connector 43 extends into the housing 20 through the through hole on the bottom plate 22.

[0184] In some embodiments, please refer to Figures 5, 7, 10 and 13. The first pipe joint 43 is provided with a first flange 431, which is sealed to the housing 20.

[0185] A flange is a disc-shaped structure that can be circular, elliptical, or polygonal, with a central hole for a pipe to pass through. Around this hole are a series of bolt holes, evenly distributed around the circumference. The flange edge typically has a certain thickness to ensure its strength and stability.

[0186] The first flange 431 refers to the flange installed on the first pipe joint 43. The first flange 431 and the first pipe joint 43 can be integrally formed. Alternatively, the first flange 431 can be manufactured separately and then connected to the first pipe joint 43. The first flange 431 can be made of materials such as metal, plastic, or ceramic.

[0187] The sealing connection between the first flange 431 and the housing 20 means that the first flange 431 is connected to the housing 20 and there is no gap between the first flange 431 and the housing 20, or that a sealant or sealing ring is provided between the first flange 431 and the housing 20 to seal the gap between the first flange 431 and the housing 20.

[0188] A first flange 431 is provided on the first pipe joint 43 to facilitate connection with the housing 20, and the first flange 431 can be easily sealed with the housing 20, thereby sealing the first pipe joint 43 with the housing 20.

[0189] In some embodiments, sealant may be filled into the gap between the first pipe joint 43 and the housing 20, or a sealing ring may be provided in the gap between the first pipe joint 43 and the housing 20 to achieve a seal between the first pipe joint 43 and the housing 20.

[0190] In some embodiments, an opening 2311 is provided on the frame 23 for the first pipe fitting 43 to pass through, and the first flange 431 is sealed to the frame 23.

[0191] In some embodiments, a through hole is provided on the top cover 21 for the first pipe joint 43 to pass through, and the first flange 431 is sealed to the top cover 21.

[0192] In some embodiments, a through hole is provided on the base plate 22 for the first pipe joint 43 to pass through, so that the first flange 431 is sealed to the base plate 22.

[0193] In some embodiments, please refer to Figures 5 to 7 and Figures 15 to 18, the battery device 200 includes a protective cover 50, which covers the portion of the first pipe joint 43 that extends out of the housing 20, and the protective cover 50 is mounted on the housing 20.

[0194] A protective cover 50 refers to a shell structure with an inner cavity for an object to extend into, which is then placed over the object to provide protection. The protective cover 50 can be made of materials such as plastic or metal.

[0195] Since one end of the first pipe connector 43 passes through the housing 20 and the other end extends out of the housing 20 to connect with the corresponding first pipe fitting 42, the protective cover 50 is placed on the part of the first pipe connector 43 that extends out of the housing 20, that is, the protective cover 50 is placed on the end of the first pipe connector 43 that is connected to the corresponding first pipe fitting 42.

[0196] The protective cover 50 is installed on the housing 20, and the housing 20 supports the protective cover 50. The protective cover 50 can be fixed to the housing 20 with fasteners such as screws, or it can be glued to the housing 20.

[0197] A protective cover 50 is provided and placed over the first pipe joint 43 to protect the portion of the first pipe joint 43 that extends out of the housing 20.

[0198] In some embodiments, if an opening 2311 is provided on the frame 23 for the first pipe fitting 43 to pass through, then the protective cover 50 is installed on the frame 23.

[0199] In some embodiments, a through hole is provided on the top cover 21 for the first pipe connector 43 to pass through, and the protective cover 50 is installed on the top cover 21.

[0200] In some embodiments, a through hole is provided on the base plate 22 for the first pipe connector 43 to pass through, and the protective cover 50 is installed on the base plate 22.

[0201] In some embodiments, please refer to Figures 5 to 7 and Figures 15 to 18. The protective cover 50 includes a cover portion 51 and a connecting portion 52 connected to the cover portion 51. The connecting portion 52 is connected to the housing 20. The cover portion 51 is provided with a receiving groove 511 adapted to accommodate the portion of the first pipe connector 43 extending out of the housing 20.

[0202] The protective cover 51 refers to the portion of the protective cover 50 into which one end of the first pipe connector 43 connects to the corresponding first pipe fitting 42 extends, covering the corresponding end of the first pipe connector 43. The receiving groove 511 refers to the groove structure provided in the protective cover 51, into which one end of the first pipe connector 43 connects to the corresponding first pipe fitting 42 extends.

[0203] The connecting part 52 refers to the part on the protective cover 50 used to connect with the housing 20. The connecting part 52 is connected to the protective cover part 51 to support the protective cover part 51, and when the connecting part 52 is connected to the housing 20, it supports the protective cover part 51 on the housing 20.

[0204] A protective cover 51 is provided to cover the portion of the first pipe connector 43 that extends out of the housing 20. A receiving groove 511 is provided in the protective cover 51 to accommodate the first pipe connector 43, so that the protective cover 51 is adapted to cover the corresponding portion of the first pipe connector 43. A connecting part 52 is provided to connect with the housing 20, so that the protective cover 50 is installed on the housing 20, thereby protecting the first pipe connector 43.

[0205] In some embodiments, referring to Figures 5 to 7, 15, and 16, when the protective cover 50 is mounted on the frame 23, an extension 53 may be provided on the connecting portion 52. The extension 53 may extend to the top surface of the frame 23 to be fixedly connected to the top of the frame 23 by fasteners such as screws. The extension 53 refers to the plate-like portion structure connected to the connecting portion 52. The connecting portion 52 and the extension 53 may be integrally formed for ease of manufacturing. Of course, the connecting portion 52 and the extension 53 may also be manufactured separately, with the extension 53 fixedly connected to the connecting portion 52.

[0206] In some embodiments, when the protective cover 50 is mounted on the frame 23, an extension 53 may be provided on the connecting portion 52. The extension 53 may extend to the bottom surface of the frame 23 to be fixedly connected to the bottom of the frame 23 by fasteners such as screws.

[0207] In some embodiments, when an extension 53 is provided on the connecting portion 52, the end of the receiving groove 511 away from the first tube 42 may extend to the end of the protective cover portion 51 away from the first tube 42, so that the extension 53 is formed on the connecting portion 52.

[0208] In some embodiments, referring to Figures 17 and 18, the connecting portion 52 may also be connected to the side of the frame 23 to simplify the structure of the protective cover 50. In this case, the end of the receiving groove 511 away from the first pipe 42 may extend to the top surface of the frame 23. In some embodiments, the connecting portion 52 may also be connected to the side of the frame 23, and the end of the receiving groove 511 away from the first pipe 42 may extend to the bottom surface of the frame 23; in some embodiments, the connecting portion 52 may also be connected to the side of the frame 23, and the end of the receiving groove 511 away from the first pipe 42 may also extend to the end of the protective cover portion 51 away from the first pipe 42.

[0209] In some embodiments, please refer to Figures 5, 9, 11 to 13. The heat exchange body 41 is provided with connectors 4111 at both ends of the flow channel, and the connectors 4111 are connected to the corresponding first pipe joints 43.

[0210] Connector 4111 refers to a connector used to connect pipe fittings.

[0211] Connectors 4111 are provided at both ends of the flow channel, and the connectors 4111 are connected to the corresponding first pipe fittings 43 to connect the two sets of first pipe fittings 42 to the two ends of the flow channel respectively.

[0212] A connector 4111 is provided on the heat exchange body 41 to facilitate connection to the first pipe connector 43 and to facilitate assembly.

[0213] In some embodiments, the first pipe connector 43 may be directly connected to the heat exchange body 41, such as by providing an inlet on the heat exchange body 41 and inserting the first pipe connector 43 into the corresponding inlet to directly connect the first pipe connector 43 to the heat exchange body 41.

[0214] In some embodiments, please refer to Figures 5, 9, 11 to 13, the first pipe fitting 43 is connected to the corresponding connector 4111 via the second pipe fitting 45.

[0215] The second fitting 45 refers to the fitting used to connect the first fitting 43 and the connector 4111. The second fitting 45 can be a metal pipe or a plastic pipe. The cross-section of the second fitting 45 can be circular, elliptical, polygonal, or other shapes. The second fitting 45 can also be a quick-connect fitting.

[0216] A second pipe fitting 45 is provided, and the two ends of the second pipe fitting 45 are respectively connected to the first pipe fitting 43 and the corresponding connector 4111, which can facilitate connection, facilitate assembly, and improve assembly efficiency.

[0217] In some embodiments, the second pipe 45 includes a soft layer 451 and a hard layer 452, wherein the soft layer 451 is disposed on the inner surface of the hard layer 452.

[0218] The rigid layer 452 refers to a structural layer made of a rigid material that is not easily deformed by elasticity. The material of the rigid layer 452 can be plastic, metal, ceramic, etc.

[0219] The soft layer 451 refers to a structural layer made of a soft, easily elastically deformable material. The material of the soft layer 451 can be rubber, silicone, etc.

[0220] The second pipe fitting 45 is provided with a hard layer 452 to give the second pipe fitting 45 good structural strength so as to connect the first pipe joint 43 and the connector 4111. The inner surface of the hard layer 452 is provided with a soft layer 451, which can achieve a good seal with the first pipe joint 43 and the connector 4111.

[0221] In some embodiments, the second pipe fitting 45 can be manufactured by double injection molding, such as by injection molding a soft layer 451 on the inner surface of the hard layer 452, or by injection molding a hard layer 452 on the outer surface of the soft layer 451, so that the hard layer 452 and the soft layer 451 are well connected and the manufacturing process is convenient.

[0222] In some embodiments, the hard layer 452 and the soft layer 451 can also be made separately, and then the soft layer 451 is bonded to the inner surface of the hard layer 452.

[0223] In some embodiments, please refer to Figures 5 to 7, a second pipe fitting 44 is connected to the end of each first pipe fitting 42 that is away from the heat exchange body 41.

[0224] The second pipe connector 44 is a connector used to connect to the external heat exchanger temperature control circuit. The end of the first pipe fitting 42 furthest from the heat exchanger body 41 is connected to the second pipe connector 44 for connection to the temperature control circuit, thus facilitating the connection between the first pipe fitting 42 and the temperature control circuit. The second pipe connector 44 can be a quick-connect coupling or a plug-in connector, etc.

[0225] A second pipe connector 44 is provided to facilitate connection to an external heat exchange fluid temperature control circuit, thereby facilitating the connection of the first pipe fitting 42 to the external heat exchange fluid temperature control circuit.

[0226] In some embodiments, the first fitting 42 may be directly connected to the temperature control circuit. In some embodiments, a connector may also be provided on the temperature control circuit to connect to the first fitting 42.

[0227] In some embodiments, as shown in Figures 5 to 7, the second pipe fitting 44 is provided with a second flange 441, which is connected to the housing 20.

[0228] A flange is a disc-shaped structure that can be circular, elliptical, or polygonal, with a central hole for a pipe to pass through. Around this hole are a series of bolt holes, evenly distributed around the circumference. The flange edge typically has a certain thickness to ensure its strength and stability.

[0229] The second flange 441 refers to the flange installed on the second pipe fitting 44. The second flange 441 and the second pipe fitting 44 can be manufactured as a single piece. Alternatively, the second flange 441 can be manufactured separately and then connected to the second pipe fitting 44. The second flange 441 can be made of materials such as metal, plastic, or ceramic.

[0230] A second flange 441 is installed on the second pipe joint 44, and the second flange 441 is connected to the housing 20. This allows the second pipe joint 44 to be fixed on the housing 20, facilitating the connection to the external heat exchange liquid temperature control circuit.

[0231] In some embodiments, the second pipe fitting 44 may also be glued or fixed to the housing 20 using fasteners such as screws.

[0232] In some embodiments, when the first pipe fitting 42 is located on the side of the frame 23, the second pipe connector 44 is also located on the side of the frame 23, so that the second flange 441 can be fixedly connected to the side of the frame 23 to fix the second pipe connector 44 to the side of the frame 23.

[0233] In some embodiments, each second pipe connector 44 may be located at the middle of one side beam 231 of the frame 23 in order to connect the temperature control circuit.

[0234] In some embodiments, each second pipe joint 44 may be located at the same end of one side beam 231 of the frame 23 to connect to the temperature control circuit.

[0235] In some embodiments, the two sets of second pipe joints 44 corresponding to the two sets of first pipe fittings 42 may also be respectively provided at opposite ends of one side beam 231 of the frame 23.

[0236] In some embodiments, when the thermal management component 40 includes a first pipe connector 43 and a second pipe connector 44, the first pipe connector 43 and the second pipe connector 44 are respectively connected to the two ends of the first pipe 42.

[0237] In some embodiments, please refer to Figures 5, 8 to 12. The heat exchange body 41 includes a heat exchange plate 411, which is in contact with the surface of the battery cell 30 with the largest area. The heat exchange plate 411 is provided with flow channels.

[0238] The heat exchange plate 411 is a plate with internal flow channels. The heat exchange plate 411 can be made of materials such as metal or thermally conductive plastic.

[0239] The surface with the largest area of ​​the battery cell 30 can also be called the large surface of the battery cell 30.

[0240] The heat exchange plate 411 is designed to make contact with the surface of the battery cell 30 with the largest area, which can exchange heat with the battery cell 30 more quickly and improve the efficiency of regulating the temperature of the battery cell 30.

[0241] In some embodiments, please refer to Figures 5, 8 to 13. There are multiple heat exchange plates 411, which are arranged along the second direction. The liquid inlet ends of two adjacent heat exchange plates 411 are connected by a third pipe 46, and the liquid outlet ends of two adjacent heat exchange plates 411 are connected by a fourth pipe 47. Both the third pipe 46 and the fourth pipe 47 are located in the accommodating space 201.

[0242] "Multiple" refers to two or more.

[0243] The second direction can be along the length direction X of the housing 20, or along the width direction Y of the housing 20. Alternatively, it can be set at an angle to the length direction X of the housing 20. The specific direction can be determined based on the arrangement of the battery cells 30 within the housing 20. Since the heat exchange plate 411 is in contact with the large surface of the battery cell 30, for a square battery cell 30, the second direction is perpendicular to the large surface of the battery cell 30.

[0244] The liquid inlet end of the heat exchange plate 411 refers to the end of the heat exchange plate 411 where the heat exchange liquid enters the flow channel of the heat exchange plate 411.

[0245] The liquid outlet end of the heat exchange plate 411 refers to the end on the heat exchange plate 411 from which the heat exchange liquid in the flow channel of the heat exchange plate 411 flows out.

[0246] The third fitting 46 refers to the fitting that connects to the liquid inlet end of the heat exchange plate 411. The third fitting 46 can be a pipe fitting or a quick-connect pipe. The fourth fitting 47 refers to the fitting that connects to the liquid outlet end of the heat exchange plate 411. The fourth fitting 47 can be a pipe fitting or a quick-connect pipe.

[0247] The connection between the liquid inlet ends of two adjacent heat exchange plates 411 via a third pipe fitting 46 means that a third pipe fitting 46 is provided between two adjacent heat exchange plates 411, and both ends of the third pipe fitting 46 are respectively connected to the liquid inlet ends of the two heat exchange plates 411, thereby connecting the liquid inlet ends of the two heat exchange plates 411. Furthermore, multiple third pipe fittings 46 are used to connect the liquid inlet ends of multiple heat exchange plates 411.

[0248] The connection between the liquid outlets of two adjacent heat exchange plates 411 via a fourth pipe fitting 47 means that a fourth pipe fitting 47 is installed between two adjacent heat exchange plates 411, and both ends of the fourth pipe fitting 47 are respectively connected to the liquid outlets of the two heat exchange plates 411, thereby connecting the liquid outlets of the two heat exchange plates 411. Furthermore, multiple fourth pipe fittings 47 are used to connect the liquid outlets of multiple heat exchange plates 411.

[0249] By setting up multiple heat exchange plates 411, the heat exchange area can be increased, allowing for faster temperature regulation of the battery cells 30 in the housing 20. Arranging the multiple heat exchange plates 411 along the second direction facilitates their assembly. Using a third pipe 46 to connect the liquid inlet ends of two adjacent heat exchange plates 411 and a fourth pipe 47 to connect the liquid outlet ends of two adjacent heat exchange plates 411 allows the flow channels of multiple heat exchange plates 411 to be connected in parallel. Therefore, only one heat exchange plate 411 needs to be connected to two first pipes 42 at each end to allow for efficient heat exchange. The heat exchange plates 411 are all connected to the two first pipe fittings 42, which is convenient. The third pipe fitting 46 and the fourth pipe fitting 47 are located inside the housing space 201, which allows the flow channels of multiple heat exchange plates 411 to be connected in parallel inside the housing 20. This facilitates communication with the first pipe fittings 42 outside the housing 20. Moreover, the housing 20 can protect the third pipe fittings 46 and the fourth pipe fitting 47, thereby reducing the impact of the external structure on the third pipe fittings 46 and the fourth pipe fitting 47, and making the connection between the third pipe fittings 46 and the fourth pipe fitting 47 and the heat exchange plates 411 more stable.

[0250] In some embodiments, a heat exchange plate 411 may be provided between any two adjacent battery cells 30 along the second direction, so that each battery cell 30 has opposite sides in contact with a heat exchange plate 411.

[0251] In some embodiments, each battery cell 30 may contact the heat exchange plate 411 on only one side, thus requiring two battery cells 30 to be arranged in the second direction between two adjacent heat exchange plates 411.

[0252] In some embodiments, please refer to Figures 5, 8 to 12, the liquid inlet end and the liquid outlet end of the heat exchange plate 411 are located at opposite ends of the heat exchange plate 411.

[0253] The liquid inlet and liquid outlet are located at opposite ends of the heat exchange plate 411. The dimensions of both the liquid inlet and liquid outlet can be set to be large. Correspondingly, the dimensions of the third pipe fitting 46 and the fourth pipe fitting 47 can also be set to be large to reduce the flow resistance of the heat exchange liquid, facilitate the entry and exit of the heat exchange liquid into each heat exchange plate 411, and improve the heat exchange efficiency.

[0254] In some embodiments, the liquid inlet and liquid outlet are located at the same end of the heat exchange plate 411.

[0255] The liquid inlet and liquid outlet are located at the same end of the heat exchange plate 411, which can further reduce the space occupied and improve the volume utilization rate.

[0256] In some embodiments, at least one third pipe 46 is connected to at least three heat exchange plates 411, that is, one third pipe 46 passes through at least three heat exchange plates 411 to connect these heat exchange plates 411 with the third pipe 46, which can reduce the number of third pipes 46 used.

[0257] In some embodiments, a single pipe can be used to pass through the liquid inlet end of each heat exchange plate 411 and connect to one end of the flow channel of each heat exchange plate 411, i.e., the third pipe 46 is a single pipe, so as to reduce the number of third pipes 46.

[0258] In some embodiments, a third pipe 46 is provided between two adjacent heat exchange plates 411, that is, the liquid inlet ends of two adjacent heat exchange plates 411 are connected by a third pipe 46.

[0259] A third pipe fitting 46 is provided between two adjacent heat exchange plates 411 to connect the liquid inlet ends of the two heat exchange plates 411, which facilitates the setting of the position of the heat exchange plates 411, allows for flexible layout, and makes it easy to adjust the number of heat exchange plates 411.

[0260] In some embodiments, at least one fourth pipe 47 is connected to at least three heat exchange plates 411, that is, one fourth pipe 47 passes through at least three heat exchange plates 411 to connect these heat exchange plates 411 with the fourth pipe 47, which can reduce the number of fourth pipes 47 used.

[0261] In some embodiments, a single pipe can be used to pass through the liquid outlet end of each heat exchange plate 411 and connect to the other end of the flow channel of each heat exchange plate 411, i.e., the fourth pipe 47 is a single pipe, so as to reduce the number of fourth pipes 47.

[0262] In some embodiments, when the heat exchange plate 411 is provided with a connector 4111, the two ends of the third pipe 46 are respectively connected to the connectors 4111 provided at the liquid inlet ends of two adjacent heat exchange plates 411, and the two ends of the fourth pipe 47 are respectively connected to the connectors 4111 provided at the liquid outlet ends of two adjacent heat exchange plates 411, so as to facilitate assembly.

[0263] In some embodiments, the third fitting 46 may be a double-injection molded tube, forming a soft structural layer inside the third fitting 46 for a sealed connection with the corresponding connector 4111.

[0264] In some embodiments, the fourth fitting 47 may be a double-injection molded tube, forming a soft structural layer inside the fourth fitting 47 for a sealed connection with the corresponding connector 4111.

[0265] In some embodiments, the heat exchanger body 41 includes a bottom flow channel plate on which the battery cell 30 is placed. The bottom flow channel plate is a plate located at the bottom of the housing 20 and having flow channels inside. The bottom flow channel plate supports the battery cell 30 and regulates its temperature.

[0266] In some embodiments, flow channels may be provided in the bottom plate 22 of the housing 20 to form a bottom flow channel plate. Of course, the bottom flow channel plate may also be provided separately and installed at the bottom of the receiving space 201 of the housing 20.

[0267] In some embodiments, the heat exchange body 41 includes a top flow channel plate, which can contact the top surface of the battery cell 30, or the battery cell 30 can be inverted and connected to the top flow channel plate. The top flow channel plate is a plate disposed on the top of the battery cell 30 and having flow channels within it. The temperature of the battery cell 30 is regulated by the top flow channel plate.

[0268] In some embodiments, a flow channel may be provided in the top cover 21 of the housing 20 to form a top flow channel plate. Of course, the top flow channel plate may also be provided separately and installed in the receiving space 201 of the housing 20.

[0269] Please refer to Figures 5 to 13. According to some embodiments of this application, this application provides a battery device 200, including a housing 20, a battery cell 30, and a thermal management component 40. The thermal management component 40 includes a heat exchange body 41 with a flow channel inside and a first pipe 42 that is connected to both ends of the flow channel. The heat exchange body 41 is disposed in the accommodating space 201 and is used to exchange heat with the battery cell 30. The first pipe 42 is disposed on the outside of the housing 20, and two sets of the first pipe 42 are provided. The thermal management component 40 includes a first pipe connector 43 connected to the first pipe connector 42. The first pipe connector 43 passes through the housing 20 and is connected to the heat exchange body 41. The housing 20 has a receiving space 201; the battery cell 30 is disposed in the receiving space 201; the heat exchange body 41 is used to exchange heat with the battery cell 30 to regulate the temperature of the battery cell 30; the heat exchange body 41 is provided with a flow channel for the heat exchange fluid to flow; the housing 20 includes a frame 23 formed by multiple side beams 231, and two sets of first pipe fittings 42 are disposed on the side of the frame 23 perpendicular to the housing 20 and away from the receiving space 201, and are located on the outside of the frame 23. The frame 23 is provided with an opening 2311 for the first pipe connector 43 to pass through, and the two sets of first pipe fittings 42 are respectively connected to the opposite ends of the flow channel; one end of the first pipe fitting 42 is connected to the first pipe connector 43, and the first pipe connector 43 passes through the opening 2311 and is connected to the corresponding end of the flow channel. A mounting beam 241 is mounted on the outer side surface of the side beam 231. A cavity 2411 is provided within the mounting beam 2411, and at least a portion of the first pipe fitting 42 is disposed within the cavity 2411. Connectors 4111 are respectively provided at both ends of the flow channel on the heat exchange body 41. The first pipe joint 43 is connected to the corresponding connector 4111 via a second pipe fitting 45. Furthermore, the second pipe fitting 45 includes a soft layer 451 and a hard layer 452, with the soft layer 451 disposed on the inner surface of the hard layer 452.

[0270] In the technical solution of this application embodiment, two sets of first pipe fittings 42 are set to connect to the external heat exchange liquid temperature control circuit, and a first pipe connector 43 is set to pass through the frame 23 to connect to the heat exchange body 41 in the housing 20. Thus, the two sets of first pipe fittings 42 are respectively connected to the two ends of the flow channel of the heat exchange body 41 through the first pipe connector 43, so as to connect the flow channel of the heat exchange body 41 with the external heat exchange liquid temperature control circuit, thereby controlling the temperature of the heat exchange liquid entering the heat exchange body 41, and thus regulating the temperature of the battery cell 30. In addition, the first pipe fittings 42 can be set on the side of the frame 23 perpendicular to the height Z of the housing 20 and away from the accommodating space 201, so as to reduce the space occupied inside the housing 20, improve the volume utilization rate of the housing 20, and make the overall height of the battery device 200 smaller. A connector 4111 is provided on the heat exchange body 41, and a second pipe fitting 45 is used to connect the first pipe joint 43 and the corresponding connector 4111, which is convenient for connection. The second pipe fitting 45 is provided with a hard layer 452 to give the second pipe fitting 45 good structural strength so as to connect the first pipe joint 43 and the connector 4111. The inner surface of the hard layer 452 is provided with a soft layer 451, which can achieve good sealing with the first pipe joint 43 and the connector 4111.

[0271] According to some embodiments of this application, this application also provides an energy storage device 14, including a battery device 200 as described in the above embodiments, the battery device 200 being used to store or provide electrical energy.

[0272] According to some embodiments of this application, this application also provides an energy storage system 13, including a power conversion device 131 and an energy storage device 14 as described in the above embodiments, wherein the power conversion device 131 is electrically connected between the power generation device 132 and the energy storage device 14.

[0273] According to some embodiments of this application, this application also provides an electrical device, including a battery device 200 as described in the above embodiments, an energy storage device 14 as described in the above embodiments, or an energy storage system 13 as described in the above embodiments, wherein the battery device 200 is used to store or provide electrical energy.

[0274] According to some embodiments of this application, this application also provides a charging network 12, including a charging pile 121 and an energy storage device 14 as described in the above embodiments or an energy storage system 13 as described in the above embodiments, wherein the energy storage device 14 is used to provide electrical energy to the charging pile 121.

[0275] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

A battery device, characterized in that, include: The container has storage space; A single battery cell is disposed within the accommodating space; A thermal management component, comprising a heat exchange body and a first pipe, wherein the heat exchange body has a flow channel and the first pipe is connected to the flow channel; the heat exchange body is disposed in the accommodating space and is used to exchange heat with the battery cell, and the first pipe is disposed on the outside of the accommodating space. The battery device as claimed in claim 1, characterized in that, The enclosure includes a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to opposite sides of the frame to form the receiving space. The enclosure includes a first direction from the top cover to the bottom plate. Along a direction perpendicular to the first direction, the first tube is located on the side of the frame opposite to the receiving space. The battery device as claimed in claim 2, characterized in that, The frame has a mounting beam on its outer side, and the mounting beam has a cavity; at least a portion of the first pipe is disposed in the cavity. The battery device as claimed in claim 3, characterized in that, The mounting beam is provided with mounting holes, which are offset from the first pipe fitting along the direction from the accommodating space to the cavity. The battery device as described in claim 3 or 4, characterized in that, The frame and the mounting beam are integrally formed. The battery device as described in any one of claims 3-5, characterized in that, The first pipe is fixedly connected to the side wall forming the cavity. The battery device as claimed in claim 6, characterized in that, The mounting beam is provided with a locking fastener; the first pipe is fixed to the side wall forming the cavity by the locking fastener; and / or, the first pipe is bonded to the side wall forming the cavity. The battery device as described in any one of claims 1-7, characterized in that, The thermal management component includes a first pipe connector connected to the first pipe fitting, the first pipe connector passing through the housing and connected to the heat exchange body. The battery device as claimed in claim 8, characterized in that, The first pipe joint is provided with a first flange, which is sealed to the housing. The battery device as described in any one of claims 8-9, characterized in that, The battery device includes a protective cover that covers the portion of the first pipe joint that extends out of the housing and is mounted on the housing. The battery device as claimed in claim 10, characterized in that, The protective cover includes a cover portion and a connecting portion connected to the cover portion. The connecting portion is connected to the housing. The cover portion is provided with a receiving groove adapted to accommodate the portion of the first pipe connector that extends out of the housing. The battery device as described in any one of claims 8-11, characterized in that, The heat exchanger body has connectors at both ends of the flow channel, and the connectors are connected to the corresponding first pipe joints. The battery device as claimed in claim 12, characterized in that, The first pipe fitting is connected to the corresponding connector via the second pipe fitting. The battery device as claimed in claim 12 or 13, characterized in that, The second pipe fitting includes a soft layer and a hard layer, wherein the soft layer is disposed on the inner surface of the hard layer. The battery device as described in any one of claims 1-14, characterized in that, Each of the first pipe fittings has a second pipe connector at the end furthest from the heat exchange body. The battery device as claimed in claim 15, characterized in that, The second pipe fitting is provided with a second flange, which is connected to the housing. The battery device as described in any one of claims 1-16, characterized in that, The heat exchange body includes a heat exchange plate, which is in contact with the surface with the largest area of ​​the battery cell, and the heat exchange plate is provided with the flow channel. The battery device as claimed in claim 17, characterized in that, The number of heat exchange plates is multiple, and the multiple heat exchange plates are arranged along the second direction; the liquid inlet ends of two adjacent heat exchange plates are connected by a third pipe, and the liquid outlet ends of two adjacent heat exchange plates are connected by a fourth pipe, and the third pipe and the fourth pipe are both located within the accommodating space. The battery device as claimed in claim 18, characterized in that, The liquid inlet and the liquid outlet are located at opposite ends of the heat exchange plate; or, the liquid inlet and the liquid outlet are located at the same end of the heat exchange plate. The battery device as claimed in claim 18 or 19, characterized in that, At least one of the third pipe fittings is connected to at least three of the heat exchange plates, or the third pipe fitting is provided between each of two adjacent heat exchange plates. The battery device as described in any one of claims 18-20, characterized in that, At least one of the fourth pipe fittings is connected to at least three of the heat exchange plates, or the fourth pipe fitting is provided between each of two adjacent heat exchange plates. An energy storage device, characterized in that, Includes the battery device as described in any one of claims 1-21, the battery device being used to store or provide electrical energy. An energy storage system, characterized in that, It includes a power conversion device and an energy storage device as described in claim 22, wherein the power conversion device is electrically connected between the power generation device and the energy storage device. An electrical device, characterized in that, Includes a battery device as described in any one of claims 1-21, an energy storage device as described in claim 22, or an energy storage system as described in claim 23, wherein the battery device is used to store or provide electrical energy.

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