Battery device, energy storage device and power utilization device

Abstract

The utility model provides a battery device, an energy storage device and a power utilization device. The battery device comprises a battery monomer and an electric control assembly electrically connected with the battery monomer, the electric control assembly comprises a cover body, a shell and a circuit board, and the cover body is made of a flexible material; the shell is in sealed connection with the cover body, and the cover body and the shell define a containing space; the circuit board is mounted in the accommodating space, and a connector socket is arranged on the circuit board; the cover body is provided with an opening for the connector socket to extend out, and the side wall of the opening is in sealed connection with the connector socket. The cover body is made of a flexible material, so that the cover body can generate relatively large elastic deformation and / or bending deformation to greatly weaken the influence of dimensional chain tolerance on the assembly of the connector socket and reduce the risk that the side wall of the opening interferes with the connector socket, so that the connector socket can extend out of the opening; and the side wall of the opening is hermetically connected with the connector socket, so that the electric control assembly can meet the required protection grade requirement.

Description

Technical Field

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

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] The battery management system usually includes a housing, a circuit board and a cover. A connector socket is provided on the circuit board to connect the circuit in the battery device or to connect an external circuit. The circuit board is installed in the housing, and the cover is provided on the housing, and an opening is provided on the cover for the connector socket to extend out to connect the corresponding circuit. However, due to the tolerance of each component, the gap between the connector socket and the side wall of the opening is difficult to control, which makes it difficult for the battery management system to meet the set protection level requirements. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a battery device, an energy storage device and an electrical device to improve the problem in the related art that the gap between the connector socket and the side wall of the corresponding opening on the cover body is difficult to control, which makes it difficult for the battery management system to meet the set protection level requirements.

[0005] In a first aspect, an embodiment of the present application provides a battery device, including a battery cell and an electronic control component electrically connected to the battery cell, wherein the electronic control component includes:

[0006] The cover body is made of flexible material;

[0007] The shell is sealed and connected to the cover, and the cover and the shell form a receiving space;

[0008] A circuit board is installed in the accommodation space, and a connector socket is provided on the circuit board;

[0009] The cover body is provided with an opening for the connector socket to extend out, and the side wall of the opening is sealedly connected with the connector socket.

[0010] In the technical solution of the embodiment of the present application, a cover body and a shell are used to enclose a containing space to accommodate and protect the circuit board, and an opening is set on the cover body to allow the connector socket to extend out; the cover body is made of flexible material, so that the cover body can produce a large elastic deformation and / or bending deformation, so as to greatly weaken the influence of the dimension chain tolerance on the assembly of the connector socket and reduce the risk of the side wall of the opening interfering with the connector socket, so as to extend the connector socket from the opening; and the side wall of the opening is sealed to the connector socket, so that the electronic control component can meet the required protection level requirements.

[0011] In some embodiments, the accommodation space is filled with pressurized gas, so that the gas pressure inside the accommodation space is greater than the gas pressure outside the accommodation space.

[0012] By making the air pressure in the accommodating space larger, the cover body can be supported by the air pressure, so that the cover body maintains the processed shape and the risk of collapse and deformation of the cover body is reduced. Accordingly, a flexible material that is easier to elastically deform and / or bend can be used to make the cover body, so as to better weaken the influence of the dimensional chain tolerance on the assembly of the connector socket and reduce the risk of the side wall of the opening interfering with the connector socket.

[0013] In some embodiments, the pressurized gas is air or an inert gas.

[0014] The pressurized gas uses air, which is low in cost and convenient to add gas. The pressurized gas uses inert gas, which is highly safe.

[0015] In some embodiments, a first supporting structure is disposed on the cover, and the first supporting structure is connected to the circuit board.

[0016] A first supporting structure is arranged on the cover body so as to support the circuit board in the accommodating space and support the connector socket through the circuit board to facilitate connection and use.

[0017] In some embodiments, the cover body is provided with a first groove along the first direction, the bottom wall of the first groove is connected to the circuit board, and the first supporting structure includes the groove wall of the first groove.

[0018] A first groove is arranged on the cover body, and the bottom wall of the first groove is connected to the circuit board, so that the circuit board is supported by the groove wall of the first groove. When the cover body is manufactured, the first groove can be directly formed, which is convenient for processing and manufacturing.

[0019] In some embodiments, the cover body is formed with a first cavity, which constitutes at least a part of the accommodating space. The cover body is recessed with a second groove along the second direction. The side wall of the second groove is connected to the circuit board, and the first supporting structure includes the groove wall of the second groove.

[0020] A first concave cavity is arranged on the cover body to form a receiving space for facilitating the installation of a circuit board, and a second groove is arranged on the side wall of the first concave cavity so that the side wall of the second groove is connected to the circuit board so as to support the circuit board through the groove wall of the second groove. When manufacturing the cover body, the second groove can be directly formed, which is convenient for processing and manufacturing.

[0021] In some embodiments, the housing is made of flexible material.

[0022] Using flexible materials to make the shell can reduce costs, facilitate the processing and manufacturing of the shell, and enable the shell to produce larger elastic deformation and / or bending deformation, thereby facilitating the sealed connection between the shell and the cover body, and weakening the effect of the shell's dimensional tolerance on the overall assembly, thereby weakening the effect of the dimensional chain tolerance on the connector socket assembly and reducing the risk of the side wall of the opening interfering with the connector socket.

[0023] In some embodiments, a second supporting structure is disposed on the housing, and the second supporting structure is connected to the circuit board.

[0024] A second supporting structure is arranged on the housing so as to support the circuit board in the accommodating space and support the connector socket through the circuit board to facilitate connection and use.

[0025] In some embodiments, a first slot body is recessed in the shell along the third direction, a bottom wall of the first slot body is connected to the circuit board, and the second supporting structure includes a slot wall of the first slot body.

[0026] A first slot body is arranged on the shell, and the bottom wall of the first slot body is connected to the circuit board, so that the circuit board is supported by the slot wall of the first slot body. When manufacturing the shell, the first slot body can be directly formed, which is convenient for processing and manufacturing.

[0027] In some embodiments, a bottom of the first trough body is provided with a positioning portion protruding in a direction away from the cover body for connecting with the supporting medium.

[0028] Providing a positioning portion in the first groove body can increase the overall structural strength of the shell, and when in use, the positioning portion can be abutted or connected to the supporting medium to better support and position the shell, thereby facilitating the installation and fixation of the shell and further facilitating the assembly and use of the electronic control components.

[0029] In some embodiments, the shell forms a second cavity, which constitutes at least a portion of the accommodating space. The shell is recessed with a second groove body along the fourth direction. The side wall of the second groove body is connected to the circuit board, and the second support structure includes the groove wall of the second groove body.

[0030] A second cavity is provided on the shell to form a receiving space for facilitating the installation of a circuit board, and a second groove body is provided on the side wall of the second cavity so that the side wall of the second groove body is connected to the circuit board so as to support the circuit board through the groove wall of the second groove body. When manufacturing the shell, the second groove body can be directly formed, which is convenient for processing and manufacturing.

[0031] In some embodiments, a connector is provided on at least one side of the opening of the cover body, at least part of the connector extends along the thickness direction of the cover body, and the connector is bonded to the side wall of the connector socket so that the side wall of the opening is sealed to the connector socket.

[0032] A connecting piece is provided on at least one side of the opening to facilitate the connector socket, thereby facilitating the sealing connection between the corresponding side of the opening and the connector socket.

[0033] In some embodiments, a connection piece is provided on each side of the opening.

[0034] Connectors are provided on each side of the opening, which can facilitate sealing connection between each side of the opening and the connector socket, so as to seal the peripheral side of the connector socket and improve the sealing performance.

[0035] In some embodiments, the connecting pieces on each side of the opening are connected in sequence to form a frame shape.

[0036] Connecting multiple connectors into a frame shape can improve the overall structural strength.

[0037] In some embodiments, the connecting member is frame-shaped and is disposed around the opening.

[0038] The connecting piece is arranged in a frame shape and is arranged around the opening, so that it can be conveniently sealed and connected with the peripheral side of the connector socket.

[0039] In some embodiments, the connecting member and the cover body are integrally formed, or the connecting member and the cover body are bonded together.

[0040] The connecting piece and the cover body are integrally formed to facilitate processing and manufacturing.

[0041] The connecting piece is bonded to the cover body, and the connecting piece can be manufactured separately to connect the cover body and the connector socket.

[0042] In some embodiments, the connecting element is in the shape of a sheet or a plate.

[0043] The use of a sheet-shaped or plate-shaped connecting piece has a simple structure, is easy to manufacture, and is also convenient for connecting the cover body and the connector socket.

[0044] In some embodiments, at least a portion of the connector is extended from the cover body toward the interior of the accommodation space, and / or at least a portion of the connector is extended from the cover body toward a direction away from the accommodation space.

[0045] The above structural arrangement can facilitate the connection of the connecting piece to the connector socket, so as to achieve a sealed connection between each side of the opening and the connector socket.

[0046] In some embodiments, the electric control assembly further includes a support plate, and the housing is mounted on the support plate.

[0047] A support plate is provided to fix and support the housing, and the support plate is connected to the supporting medium so that the electric control component can be installed on the supporting medium for easy assembly and use.

[0048] In some embodiments, the shell is connected to the support plate via snap fasteners.

[0049] The shell and the support plate are connected by using snap fasteners, which is convenient to connect. The connection of the snap fasteners has a certain elasticity and can protect the shell.

[0050] In a second aspect, an embodiment of the present application provides an energy storage device, including a battery device as described in the above embodiment, and the battery device is used to store or provide electrical energy.

[0051] In a third aspect, an embodiment of the present application provides an energy storage system, including a power conversion device and an energy storage device as described in the above embodiment, wherein the power conversion device is electrically connected between the power generation device and the energy storage device.

[0052] In a fourth aspect, an embodiment of the present application provides 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.

[0053] In a fifth aspect, an embodiment of the present application provides a charging network, including a charging pile and an energy storage device as described in the above embodiment or an energy storage system as described in the above embodiment, wherein the energy storage device is used to provide electrical energy to the charging pile.

[0054] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0057] Figure 2 A schematic diagram of the structure of a charging network in some embodiments of the present application;

[0058] Figure 3 A schematic diagram of the structure of an energy storage system in some embodiments of the present application;

[0059] Figure 4 A schematic diagram of the structure of an energy storage device in some embodiments of the present application;

[0060] Figure 5 A schematic diagram of the exploded structure of a battery device according to some embodiments of the present application;

[0061] Figure 6 A schematic diagram of a top view of an electric control assembly according to some embodiments of the present application;

[0062] Figure 7 For along Figure 6 Schematic diagram of the partial cross-section structure of AA Figure 1 ;

[0063] Figure 8 For along Figure 6 Schematic diagram of the partial cross-section structure of AA Figure 2 ;

[0064] Fig. 9 For along Figure 6 A schematic diagram of the partial cross-sectional structure of the middle BB;

[0065] Fig.10 This is a schematic diagram of the structure in which a circuit board is installed on a cover body in some embodiments of the present application;

[0066] Fig.11 Schematic diagram of the top view of the electric control components of other embodiments of the present application;

[0067] Fig.12 For along Fig.11 A partial cross-sectional structural diagram of the CC;

[0068] Fig.13 A partial cross-sectional view of the electric control components of some embodiments of the present application Figure 1 ;

[0069] Fig.14 A partial cross-sectional view of the electric control components of some embodiments of the present application Figure 2 ;

[0070] Fig.15 A partial cross-sectional view of the electric control components of some embodiments of the present application Figure 3 ;

[0071] Fig.16 A partial cross-sectional view of the electric control components of some embodiments of the present application Figure 4 ;

[0072] Fig.17 A partial cross-sectional view of the electric control components of some embodiments of the present application Figure 5 ;

[0073] Fig.18 A partial cross-sectional view of the electric control components of some embodiments of the present application Figure 6 ;

[0074] Fig.19 A partial cross-sectional view of the electric control components of some embodiments of the present application Figure 7 .

[0075] Among them, the main marks of the drawings in the figure are:

[0076] 11. vehicle; 111. controller; 112. motor;

[0077] 12. Charging network; 121. Charging pile; 122. Connecting device;

[0078] 13. Energy storage system; 131. Power conversion device; 132. Power generation device; 14. Energy storage device; 141. Cabinet;

[0079] 200, battery device; 20, box body; 21, top cover; 22, bottom plate; 23, frame; 24, reinforcement beam; 241, mounting beam;

[0080] 300, battery cell;

[0081] 400, electric control component; 401, accommodating space; 41, cover body; 410, first concave cavity; 411, opening; 412, first groove; 4121, groove wall of first groove; 413, second groove; 4131, groove wall of second groove; 42, housing; 420, second concave cavity; 421, first groove body; 4211, groove wall of first groove body; 422, second groove body; 4221, groove wall of second groove body; 423, positioning part; 43, circuit board; 44, connector socket; 45, connector; 46, support plate; 47, snap fastener; 48, first supporting structure; 49, second supporting structure;

[0082] N1, first direction; N2, second direction; N3, third direction; N4, fourth direction. DETAILED DESCRIPTION

[0083] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0085] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0086] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments in any suitable manner.

[0087] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0088] Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

[0089] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0090] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets). "Several" means one or more than one, unless otherwise clearly and specifically defined.

[0091] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0092] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0093] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0094] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "adjacent" refers to proximity in position. For example, among the three components A1, A2 and B, if the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, that is, A2 is adjacent to B, or B is adjacent to A2. For another example, when there are multiple C components, the multiple C components are C1, C2, C... N When one of the C components, such as C2, is closer to the B component than other C components, then B is adjacent to C2, or it can be said that C2 is adjacent to B.

[0095] An electronic control component, such as a battery management system and a battery monitoring unit, is usually provided in a battery device to collect the working information of each battery cell in the battery device and control the charging and discharging of each battery cell. The electronic control component usually includes a circuit board and a housing, and the housing generally includes a shell and a cover. A connector socket is provided on the circuit board to connect the circuit in the battery device or to connect an external circuit. The circuit board is installed in the shell, the cover is provided on the shell, and an opening is provided on the cover for the connector socket to extend out to connect the corresponding circuit. The structure of this electronic control component has the following dimensional chain tolerances: the dimensional tolerance of the shell, the positioning tolerance of the connection between the shell and the circuit board, the dimensional tolerance of the circuit board itself, the assembly tolerance of the connector socket and the circuit board, the dimensional tolerance of the cover, the positioning tolerance of the connection between the cover and the shell, etc. This series of tolerance accumulation will make it difficult to control the gap between the connector socket and the side wall of the opening. When the size of the opening on the cover body matches the connector socket and just meets the protection level requirements, the cumulative tolerance of the dimension chain will make it difficult for the connector socket to be inserted into the opening. Even in some cases, the connector socket is inserted into the opening, which often causes one side wall of the opening to press against the connector socket, causing the connector socket to interfere with the cover body. The stress of the connector socket being pressed by the cover body can easily cause the soldering part of the circuit board and the root of the connector socket to fall off, thus affecting the performance of the electronic control component. Therefore, the size of the opening is often set larger than the outer peripheral size of the connector socket, which makes it difficult for the electronic control component to meet the set protection level requirements.

[0096] Based on the above considerations, in order to improve the problem in the related art that the gap between the connector socket and the side wall of the corresponding opening on the cover body is difficult to control, which makes it difficult for the electronic control component to meet the set protection level requirements, an embodiment of the present application provides a battery device, which uses a cover body and a shell to enclose a containing space to accommodate and protect the circuit board, and an opening is set on the cover body to allow the connector socket to extend out; the cover body is made of flexible material, so that the cover body can produce a large elastic deformation and / or bending deformation, and the position of the opening on the cover body will change due to the elastic deformation or bending deformation of the cover body, thereby greatly weakening the influence of the dimensional chain tolerance on the assembly of the connector socket and reducing the risk of the side wall of the opening interfering with the connector socket, so that the connector socket can be extended from the opening; and the side wall of the opening is sealed to the connector socket, so that the electronic control component can meet the required protection level requirements.

[0097] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0098] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0099] The technical solutions described in the embodiments of the present application are applicable to various electrical devices that use battery cells, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0100] For the convenience of description, an electric device is provided in accordance with an embodiment of the present application, and the electric device is described by taking a vehicle as an example.

[0101] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 11 provided for some embodiments of the present application. The vehicle 11 may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 200 is provided inside the vehicle 11. The battery device 200 may be provided at the bottom, head or tail of the vehicle 11. The battery device 200 may be used to power the vehicle 11. For example, the battery device 200 may be used as an 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 power the motor 112, for example, for starting, navigating and operating power requirements of the vehicle 11 during driving.

[0102] In some embodiments, the battery device 200 can not only serve as an operating power source for the vehicle 11 , but also serve as a driving power source for the vehicle 11 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 11 .

[0103] Please refer to Figure 2 The embodiment of the present application provides a charging network 12, including a charging pile 121 and an energy storage device 14, wherein the charging pile 121 is electrically connected to the energy storage device 14, and the energy storage device 14 is used to provide electric energy to the charging pile 121. The charging pile 121 is electrically connected to a battery device 200 in the energy storage device 14 through a cable, and the battery device 200 can provide its stored electric energy to the charging pile 121. The charging pile 121 has one or more connecting devices 122, and the connecting device 122 is used to connect to an electric device (such as a vehicle 11), so as to replenish energy to the electric device.

[0104] The energy storage device 14 may be located inside the charging pile 121 (eg, an integrated storage and charging device), or may be located outside the charging pile 121 .

[0105] In some embodiments, the charging network 12 may include a charging pile 121 and an energy storage system, wherein the charging pile 121 is electrically connected to the energy storage system, and the energy storage system is used to provide electrical energy to the charging pile 121. The charging pile 121 is electrically connected to the battery device 200 in the energy storage system through a cable, and the battery device 200 can provide the electrical energy stored in the battery device 200 to the charging pile 121.

[0106] Please refer to Figure 3 The embodiment of the present application provides an energy storage system 13, which may include one or more energy storage devices 14 and a power converter 131 (Power Converter System, PCS for short), wherein the power converter 131 is connected between a power generation device 132 and the energy storage device 14. The power generation device 132 is used to generate electric energy, and the electric energy generated by the power generation device 132 may be stored in the energy storage device 14 through the power converter 131. As an example, the power generation device 132 may be a solar panel, a hydroelectric power generation equipment, a thermal power generation equipment, a wind power generation equipment, etc. The specific type of the power generation device 132 is not limited in the present application.

[0107] Please refer to Figure 4 The embodiment of the present application provides an energy storage device 14, including one or more battery clusters (BatteryCluster) to increase the voltage and capacity of the energy storage device 14. The battery cluster may include one or more battery devices 200, and the multiple battery devices 200 are connected in series through 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.

[0108] 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. The energy storage device 14 can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device 14 can store electrical energy during low power consumption and provide electrical energy to relevant users or electrical equipment during peak power consumption. The energy storage system 13 provided in the embodiment of the present application can be any power system that requires the use of the energy storage device 14.

[0109] 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.

[0110] In some embodiments, the energy storage device 14 may include a cabinet 141 and one or more battery clusters, and the battery clusters are accommodated in the cabinet 141. Of course, the energy storage device 14 may also include one or more battery devices 200, and the battery devices 200 are directly accommodated in the cabinet 141.

[0111] In some embodiments, the energy storage device 14 may include modules such as a thermal management module, a main control module, a master control module, a power distribution module, and a fire protection module.

[0112] As an example, the thermal management module may include a liquid cooling unit that provides cooling liquid for regulating the temperature of the battery cells to each battery device 200 through a pipeline.

[0113] As an example, the main control module can be used as a battery management unit of a battery cluster 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 example, the charging and discharging current and voltage of the battery cluster can be controlled. The main control module includes a slave battery management unit (SBMU for short), a fusion switch and other modules.

[0114] As an example, the master control module can be used as a battery management unit of the energy storage device 14 to monitor and manage the energy storage device 14. The master control module can monitor information such as the current, voltage, power, state of charge or temperature of the energy storage device 14. For example, the charging and discharging current and voltage of the energy storage device 14 can be controlled. As an example, the master control module includes an insulation monitoring module (IMM), a master battery management unit (MBMU), Ethernet (ETH), and a fiber optic conversion module.

[0115] As an example, the fire protection module includes a control panel, a detector, an alarm device, etc., which are used to detect, alarm or extinguish the fire of the energy storage system 13.

[0116] As an example, the power distribution module may be used to distribute power to modules in the energy storage device 14 that require power.

[0117] Please refer to Figure 5 , the embodiment of the present application provides a battery device 200 (Battery Apparatus). The battery device 200 may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly (Battery Cell Assembly) may include a plurality of battery cells 300, and the plurality of battery cells 300 are connected in series, in parallel, or in mixed connection through a busbar component.

[0118] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells 300 .

[0119] As an example, the battery cell assembly may be a battery module (Battery Module), and the battery module is formed by arranging and fixing a plurality of battery cells 300 to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells 300 with a cable tie.

[0120] In some embodiments, the battery device 200 may be a battery pack, which includes a case 20 and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the case 20 .

[0121] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box body 20 by fixing the battery module in the box body 20 .

[0122] As an example, the battery cell assembly may also be accommodated in the case 20 by directly fixing the plurality of battery cells 300 to the case 20 .

[0123] In some embodiments, the box body 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, so that a closed space is formed inside the box body 20 to accommodate the battery cells 300. The frame 23 refers to a part of the structure forming the peripheral side wall of the box body 20, the top cover 21 refers to a plate-like structure forming the top of the box body 20, and the bottom plate 22 refers to a plate-like structure forming the bottom of the box body 20.

[0124] In some embodiments, the box 20 may include a first box and a second box, and the first box and the second box are buckled together to form a closed space inside the box 20 to accommodate the battery cells 300. The closed here means covered or closed, which can be sealed or unsealed. The first box can be the top cover or bottom plate of the box 20. The first box and the second box can also be hollow structures with one side open, and the open side of the first box covers the open side of the second box.

[0125] In some embodiments, the box 20 includes a reinforcing beam 24, which is connected to the frame 23. The reinforcing beam 24 refers to a structural member provided on the box 20 to increase the structural strength of the box 20. The reinforcing beam 24 is provided and connected to the frame 23 to enhance the structural strength of the box 20.

[0126] In some embodiments, the reinforcing beam 24 includes a mounting beam 241 , which is fixedly connected to the frame 23 and used to connect to an external device that uses the battery device 200 to support the battery device 200 on the device.

[0127] In some embodiments, the reinforcing beam 24 includes an expansion beam 242 . The expansion beam 242 is installed inside the box body 20 to increase the structural strength of the box body 20 , and can also be used to support the battery cell 300 to limit the expansion deformation of the battery cell 300 .

[0128] In some embodiments, the expansion beam 242 may also be connected to the bottom plate 22 of the box body 20 to better fix the expansion beam 242 in the box body 20 .

[0129] In some embodiments, the battery device 200 includes an electronic control component 400, which refers to a device in the battery device 200 used to monitor and control the charging and discharging of the battery cell 300. The electronic control component 400 may be a battery management system (BMS), which is a core component responsible for monitoring and managing the status of the battery cell 300. Its main functions include: real-time monitoring of the voltage, current, temperature and other parameters of the battery cell 300 to ensure that the battery is in a safe working state; balancing the power of each battery cell 300 in the battery cell assembly by active or passive means to extend the battery life; controlling and adjusting the temperature of the battery cell 300 to avoid performance degradation or safety risks caused by overheating or overcooling; detecting faults of the battery cell assembly and the BMS itself, and taking corresponding protection measures, such as cutting off the power supply, alarming, etc. The electronic control component 400 may also be a battery monitoring unit (BMU), which is mainly responsible for monitoring the basic parameters of the battery cell, such as voltage, current and temperature.

[0130] In some embodiments, the electric control component 400 may be disposed in the housing 20 , so that the housing 20 can support and protect the electric control component 400 .

[0131] As an example, the electronic control component 400 may also be disposed outside the housing 20 and connected to the battery cells 300, sensors and other devices in the housing through wires.

[0132] In some embodiments, the box 20 can be used as a part of the chassis structure of the vehicle. For example, part of the box 20 can become at least a part of the floor of the vehicle, or part of the box 20 can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0133] See also Figures 5 to 8According to some embodiments of the present application, the present application provides a battery device 200, including a battery cell 300 and an electric control component 400 electrically connected to the battery cell 300. The electric control component 400 includes a shell 42, a circuit board 43 and a cover 41; the cover 41 is made of a flexible material; the shell 42 is sealed and connected to the edge of the cover 41, and the cover 41 and the shell 42 enclose a receiving space 401; the circuit board 43 is installed in the receiving space 401, and a connector socket 44 is provided on the circuit board 43; the cover 41 is provided with an opening 411 for the connector socket 44 to extend out, and the side wall of the opening 411 is sealed and connected to the connector socket 44.

[0134] The housing 42 and the cover 41 are shell structures that cooperate to enclose the accommodation space 401. The housing 42 and the cover 41 can cooperate to form the outer shell structure of the electric control component 400.

[0135] The accommodation space 401 refers to a space that can accommodate parts. The shell 42 can be a hollow structure with an opening at one end, and the cover 41 can be a plate-shaped or sheet-shaped structure. The cover 41 covers the open side of the shell 42, so that the hollow structure inside the shell 42 constitutes the accommodation space 401. The cover 41 can be a hollow structure with an opening at one end, and the shell 42 can be a plate-shaped or sheet-shaped structure. The shell 42 covers the open side of the cover 41, so that the hollow structure inside the cover 41 constitutes the accommodation space 401. The shell 42 and the cover 41 can also be hollow structures with one side opening, and the open side of the shell 42 covers the open side of the cover 41.

[0136] The opening 411 refers to a through-opening structure provided on the cover body 41 .

[0137] A circuit board 43, also known as a printed circuit board (PCB), is an important component for connecting electronic components in electronic products. It is composed of an insulating material (such as glass fiber reinforced resin) as a substrate, and a conductive path (copper foil line) is attached thereon by etching or other means to provide electrical connections between electronic components.

[0138] The connector socket 44 refers to the socket portion of the connector structure, which is used to connect with the connector plug.

[0139] The connector socket 44 is provided on the circuit board 43 to be connected to the circuit board 43 , the connector socket 44 is supported by the circuit board 43 , and the circuit board 43 and the connector socket 44 are electrically connected.

[0140] The circuit board 43 is placed in the accommodation space 401, and the housing 42 and the cover 41 cooperate to support and protect the circuit board 43. Accordingly, the connector socket 44 on the circuit board 43 extends from the opening 411 so as to be connected with the connector plug.

[0141] Flexible materials refer to materials that can undergo elastic deformation and / or bending deformation, such as silicone, rubber, etc. Of course, flexible materials can also be diaphragm materials. Diaphragm materials refer to thinner film or sheet materials. Diaphragm materials can be made of plastic, fiber, resin, rubber, etc.

[0142] The cover 41 is made of a flexible material, that is, the cover 41 is easy to bend and / or elastically deform. In particular, the cover 41 is made of a diaphragm material, and the thickness of the cover 41 is relatively thin. Any area thereof is flattened to be in a film or sheet shape. The cover 41 is made of a flexible material, such as a sheet material that can be hot-pressed, or a diaphragm material that can be thermoplasticized. The processing and manufacturing is convenient, and less material is used, and the cost is low. Moreover, since the cover 41 is made of a flexible material, it can produce a large elastic deformation or bending deformation. Accordingly, the position of the opening 411 on the cover 41 will change due to the elastic deformation or bending deformation of the cover 41, thereby weakening the influence of the dimensional chain tolerance. In this way, when there is a slight deviation between the position of the opening 411 and the position of the connector socket 44, the connector socket 44 can be passed through the opening 411 by deforming the cover body 41, and the interference force generated by the side wall of the opening 411 on the connector socket 44 is also small, so as to greatly weaken the influence of the dimensional chain tolerance on the assembly of the connector socket 44 and reduce the risk of the side wall of the opening 411 interfering with the connector socket 44.

[0143] The side wall of the opening 411 is sealed and connected to the connector socket 44, which not only meets the protection level requirement, but also allows the size of the opening 411 to be made larger so that the connector socket 44 can be easily extended from the opening 411, further reducing the interference of the side wall of the opening 411 on the connector socket 44, facilitating assembly, thereby reducing the influence of the dimension chain tolerance on the assembly of the connector socket 44.

[0144] In the technical solution of the embodiment of the present application, a cover body 41 and a shell body 42 are used to enclose a receiving space 401 to accommodate and protect the circuit board 43, and an opening 411 is set on the cover body 41 to allow the connector socket 44 to extend out; the cover body 41 is made of flexible material, so that the cover body 41 can produce a large elastic deformation or bending deformation, so as to greatly weaken the influence of the dimension chain tolerance on the assembly of the connector socket 44 and reduce the risk of the side wall of the opening 411 interfering with the connector socket 44, so as to extend the connector socket 44 from the opening 411; and the side wall of the opening 411 is sealed and connected to the connector socket 44, so that the electronic control component 400 can meet the required protection level requirements.

[0145] In some embodiments, the accommodation space 401 is filled with pressurized gas, so that the gas pressure inside the accommodation space 401 is greater than the gas pressure outside the accommodation space 401 .

[0146] By filling the accommodating space 401 with pressurized gas, the air pressure in the accommodating space 401 is increased, and the cover body 41 can be supported by the air pressure, so that the cover body 41 maintains the processed shape, and the risk of collapse and deformation of the cover body 41 is reduced. Accordingly, a flexible material that is easier to elastically deform and / or bend can be used to make the cover body 41, so as to better weaken the influence of the dimensional chain tolerance on the assembly of the connector socket 44 and reduce the risk of the side wall of the opening 411 interfering with the connector socket 44.

[0147] In some embodiments, the pressurized gas is air or an inert gas.

[0148] The pressurized gas uses air, which is low in cost and convenient to add. The pressurized gas uses inert gas, such as nitrogen, helium, etc., which is highly safe.

[0149] In some embodiments, see Figures 10 to 19 A first supporting structure 48 is disposed on the cover body 41 , and the first supporting structure 48 is connected to the circuit board 43 .

[0150] The first supporting structure 48 refers to a structure that can be used to support and fix the circuit board 43 .

[0151] The first supporting structure 48 is connected to the circuit board 43 . Specifically, the first supporting structure 48 and the circuit board 43 can be connected by bonding or clamping, or the first supporting structure 48 can be made to abut against the circuit board 43 to position and fix the circuit board 43 .

[0152] A first supporting structure 48 is disposed on the cover body 41 to support the circuit board 43 in the accommodating space 401 and to support the connector socket 44 through the circuit board 43 to facilitate connection and use.

[0153] In some embodiments, see Figures 11 to 18 The cover body 41 is provided with a first groove 412 along the first direction N1, the bottom wall of the first groove 412 is connected to the circuit board 43, and the first supporting structure 48 includes a groove wall 4121 of the first groove.

[0154] The first direction N1 may be along the thickness direction X of the circuit board 43 , or may be a direction having a small angle with the thickness direction X of the circuit board 43 , such as an angle within 10 degrees.

[0155] The first groove 412 refers to a groove structure provided on the cover body 41. Since the cover body 41 is made of a flexible material, especially when it is made of a diaphragm material, it is a diaphragm structure with a relatively thin thickness. By providing the first groove 412 on the cover body 41, a portion of the cover body 41 can be recessed toward the inside of the accommodating space 401 to form the first groove 412, which is convenient to manufacture and low in cost. The provision of the first groove 412 can not only enhance the structural strength of the cover body 41, but also the groove wall 4121 of the first groove can be used to position and support the circuit board 43, such as connecting the bottom wall of the first groove 412 to the circuit board 43 to position and support the circuit board 43. Accordingly, the groove wall 4121 of the first groove can constitute the first support structure 48 or a portion of the first support structure 48.

[0156] The groove wall 4121 of the first groove refers to all wall structures constituting the first groove 412. The wall surface at the bottom of the first groove 412 in the depth direction is the bottom wall of the first groove 412, and the wall surface at the side of the first groove 412 in the depth direction is the side wall of the first groove 412.

[0157] As an example, the bottom wall of the first groove 412 is bonded or snap-connected to the circuit board 43 , or the bottom wall of the first groove 412 can be made to abut against the circuit board 43 to position and fix the circuit board 43 .

[0158] As an example, the cross section of the first groove 412 along the direction perpendicular to its depth can be set to be annular, polygonal or other shapes, which can be set according to needs.

[0159] As an example, the first groove 412 can be set to one or more, such as two, three, four, five, etc., which can be set according to needs. Multiple means two or more.

[0160] As an example, a first groove 412 is provided on a side of the cover 41 facing the circuit board 43, so that the groove wall 4121 of the first groove supports the circuit board 43. The side of the cover 41 facing the circuit board 43 refers to a side of the cover 41 that can be projected onto the circuit board 43 along the thickness direction X of the circuit board 43.

[0161] A first groove 412 is provided on the cover body 41, and the bottom wall of the first groove 412 is connected to the circuit board 43, so that the circuit board 43 is supported by the groove wall 4121 of the first groove. When manufacturing the cover body 41, the first groove 412 can be directly formed, which is convenient for processing and manufacturing.

[0162] In some embodiments, the groove wall 4121 of the first groove is made of a hard film material, so that the groove wall 4121 of the first groove has good structural strength in the depth direction of the first groove 412, so as to position and support the circuit board 43. The hard film material can be a material such as plastic, hard rubber, etc. that can be bent and deformed, but has a small elastic deformation capacity. Small elastic deformation capacity means that when an object is subjected to an external force, if the length change of the object in the direction of the external force is less than 5%, it is considered that its elastic deformation capacity is small.

[0163] In some embodiments, the entire cover body 41 is made of a hard film material so that the cover body 41 forms a thin shell structure, and the cover body 41 has a certain structural strength. The first groove 412 thereon can provide certain support for the circuit board 43. In particular, pressurized gas is filled into the accommodating space 401, which can enable the cover body 41 to better maintain its shape. Accordingly, the risk of deformation of the cover body 41 and collision with the circuit board 43 due to extrusion is reduced.

[0164] As an example, only the groove wall 4121 of the first groove may be made of a hard film material.

[0165] In some embodiments, the groove wall 4121 of the first groove may also be made of a material that is easily elastically deformed, such as rubber, silicone, etc. Even if the groove wall 4121 of the first groove is made of a material that is easily elastically deformed, since the material still has a certain structural strength, it can also provide a certain support for the circuit board 43, thereby reducing the risk of the cover body 41 deforming and colliding with the circuit board 43.

[0166] In some embodiments, a structure such as a bracket or a pillar may be provided on the cover 41 to serve as a first supporting structure 48 to support the circuit board 43 .

[0167] In some embodiments, a partial area of ​​the cover 41 may also be thickened to form a first supporting structure 48 to support the circuit board 43 .

[0168] In some embodiments, see Figures 10 to 13 , Fig.15 , Figures 17 to 19 The cover body 41 is formed with a first concave cavity 410 , and the first concave cavity 410 constitutes at least a part of the accommodating space 401 .

[0169] The first concave cavity 410 refers to a space formed in the cover 41, one side of which is open or has a through opening. For example, the middle part of the cover 41 may be recessed toward one side to form the first concave cavity 410; or the cover 41 may be a hollow structure with an open side.

[0170] The first concave cavity 410 constitutes at least a part of the accommodating space 401, which means that the first concave cavity 410 can constitute the entire accommodating space 401. For example, when the shell 42 is a plate-shaped or sheet-shaped piece, the first concave cavity 410 can constitute the entire accommodating space 401. Of course, the first concave cavity 410 can also constitute a part of the accommodating space 401. For example, when the shell 42 is formed with a second concave cavity 420, the first concave cavity 410 is combined with the second concave cavity 420 to form the accommodating space 401.

[0171] A first concave cavity 410 is provided on the cover body 41 to form an accommodating space 401 for facilitating installation of the circuit board 43 .

[0172] In some embodiments, see Figures 10 to 19 When the cover body 41 is formed with the first cavity 410, the cover body 41 is provided with a second groove 413 along the second direction N2, the side wall of the second groove 413 is connected to the circuit board 43, and the first supporting structure 48 includes a groove wall 4131 of the second groove.

[0173] The second direction N2 may be perpendicular to the thickness direction X of the circuit board 43 , or may be a direction having a small angle with the direction perpendicular to the thickness direction X of the circuit board 43 , such as a direction with an angle within 10 degrees.

[0174] The groove wall 4131 of the second groove refers to all wall structures constituting the second groove 413. The wall surface at the bottom of the second groove 413 in the depth direction is the bottom wall of the second groove 413, and the wall surface at the side of the second groove 413 in the depth direction is the side wall of the second groove 413.

[0175] The second groove 413 refers to a groove structure provided on the cover body 41. Since the cover body 41 is made of a flexible material, especially when it is made of a diaphragm material, it is a diaphragm structure with a relatively thin thickness. The second groove 413 is provided on the side wall of the first cavity 410, and a portion of the side wall of the first cavity 410 can be recessed toward the inside of the accommodating space 401 to form the second groove 413, which is convenient to manufacture and low in cost. The provision of the second groove 413 can not only enhance the structural strength of the cover body 41, but also the groove wall 4131 of the second groove can be used to position and support the circuit board 43, such as connecting the side wall of the second groove 413 to the circuit board 43 to position and support the circuit board 43. Accordingly, the groove wall 4131 of the second groove can constitute the first support structure 48 or a portion of the first support structure 48.

[0176] As an example, the side wall of the second groove 413 is bonded or snap-connected to the circuit board 43 , or the side wall of the second groove 413 can be made to abut against the circuit board 43 to position and fix the circuit board 43 .

[0177] As an example, the second groove 413 can be set to one, or can be set to multiple, such as two, three, four, five, etc., which can be set according to needs. Multiple means two or more.

[0178] A second groove 413 is provided on the side wall of the first cavity 410, so that the side wall of the second groove 413 is connected to the circuit board 43, so as to support the circuit board 43 through the groove wall 4131 of the second groove. When manufacturing the cover body 41, the second groove 413 can be directly formed, which is convenient for processing and manufacturing.

[0179] In some embodiments, the bottom of the first concave cavity 410 in the depth direction can be arranged opposite to the circuit board 43, and the side wall adjacent to the bottom of the first concave cavity 410 in the depth direction is recessed inward to form a second groove 413. The depth direction of the first concave cavity 410 refers to the direction in which the first concave cavity 410 is recessed, that is, the second direction N2. The bottom of the first concave cavity 410 in the depth direction is arranged opposite to the circuit board 43, which means that the bottom of the first concave cavity 410 in the depth direction can be projected onto the circuit board 43 along the thickness direction X of the circuit board 43. Then the depth direction of the first concave cavity 410 is parallel to the thickness direction X of the circuit board 43. Of course, a certain angle error can be allowed, such as a 10-degree error. The side wall of the first concave cavity 410 adjacent to the bottom in the depth direction is hereinafter referred to as the side wall of the first concave cavity 410. The side wall of the first concave cavity 410 refers to the portion of the cover body 41 located on the side of the first concave cavity 410. The side wall of the first concave cavity 410 is adjacent to the bottom in the depth direction of the first concave cavity 410, and the side wall of the first concave cavity 410 is located on the side of the first concave cavity 410 in the depth direction.

[0180] In some embodiments, a support, a pillar or other structure may be provided on the side wall of the first cavity 410 to serve as a first support structure 48 to support the circuit board 43. In some embodiments, a portion of the side wall of the first cavity 410 may be thickened to form a first support structure 48 to support the circuit board 43.

[0181] In some embodiments, the groove wall 4131 of the second groove is made of a hard film material, so that the groove wall 4131 of the second groove has good structural strength in the depth direction of the second groove 413 , so as to position and support the circuit board 43 .

[0182] As an example, only the groove wall 4131 of the second groove may be made of a hard film material.

[0183] In some embodiments, the groove wall 4131 of the second groove may also be made of a material that is easily elastically deformed, such as rubber, silicone, etc. Even if the groove wall 4131 of the second groove is made of a material that is easily elastically deformed, since the material still has a certain structural strength, it can also provide a certain support for the circuit board 43, thereby reducing the risk of the cover body 41 deforming and colliding with the circuit board 43.

[0184] In some embodiments, see Fig.11 and Fig.15 , a first groove 412 and a second groove 413 can be set on the cover body 41 at the same time. Accordingly, the first supporting structure 48 includes a groove wall 4121 of the first groove and a groove wall 4131 of the second groove. The first direction N1 and the second direction N2 can intersect, such as the first direction N1 and the second direction N2 can be perpendicular to each other, or the first direction N1 and the second direction N2 can have an angle less than 90.

[0185] In some embodiments, see Fig.15 When the first groove 412 and the second groove 413 are provided on the cover body 41, the groove wall 4121 of the first groove can be connected to one side of the circuit board 43, and the groove wall 4131 of the second groove can be connected to the other side of the circuit board 43 to fix the circuit board 43.

[0186] In some embodiments, see Fig.11 and Fig.19 When the first groove 412 and the second groove 413 are provided on the cover body 41 , the groove wall 4121 of the first groove and the groove wall 4131 of the second groove can be connected to one side of the circuit board 43 .

[0187] In some embodiments, see Figures 7 to 19 , the shell 42 is made of flexible material.

[0188] The shell 42 is made of flexible material, that is, the shell 42 is easy to bend and / or elastically deform. In particular, the shell 42 is made of diaphragm material, the thickness of the shell 42 is relatively thin, and any area thereof is in the shape of a membrane or a sheet after being flattened.

[0189] The shell 42 is made of flexible material, such as sheet material by hot pressing, or film material by thermoplastic molding, etc. It is easy to process and manufacture, uses less material, and has low cost. Moreover, since it is made of flexible material, the shell 42 can produce larger elastic deformation and / or bending deformation, and accordingly, the influence of the dimensional chain tolerance can be weakened.

[0190] Using flexible material to make the shell 42 can reduce costs, facilitate the processing and manufacturing of the shell 42, and enable the shell 42 to produce larger elastic deformation and / or bending deformation, thereby facilitating the sealed connection between the shell 42 and the cover body 41, and weakening the effect of the dimensional tolerance of the shell 42 on the overall assembly, thereby weakening the effect of the dimensional chain tolerance on the assembly of the connector socket 44, and reducing the risk of the side wall of the opening 411 interfering with the connector socket 44.

[0191] In some embodiments, the shell 42 may also be a hard structure, for example, the shell 42 is made of metal, plastic, ceramic or other materials.

[0192] In some embodiments, see Figures 13 to 19 A second supporting structure 49 is disposed on the shell 42 , and the second supporting structure 49 is connected to the circuit board 43 .

[0193] The second supporting structure 49 refers to a structure that can be used to support and fix the circuit board 43 .

[0194] The second supporting structure 49 is connected to the circuit board 43 . Specifically, the second supporting structure 49 and the circuit board 43 can be connected by bonding or clamping, or the second supporting structure 49 can be made to abut against the circuit board 43 to position and fix the circuit board 43 .

[0195] A second supporting structure 49 is provided on the housing 42 to support the circuit board 43 in the accommodating space 401 and to support the connector socket 44 through the circuit board 43 to facilitate connection and use.

[0196] In some embodiments, see Figures 13 to 18 The shell 42 is recessed with a first slot body 421 along the third direction N3, the bottom wall of the first slot body 421 is connected to the circuit board 43, and the second supporting structure 49 includes a slot wall 4211 of the first slot body.

[0197] The third direction N3 may be along the thickness direction X of the circuit board 43 , or may be a direction having a small angle with the thickness direction X of the circuit board 43 , such as an angle within 10 degrees.

[0198] The first slot body 421 refers to a slot structure provided on the shell 42. Since the shell 42 is made of a flexible material, especially when it is made of a diaphragm material, it is a thin diaphragm structure. By providing the first slot body 421 on the shell 42, a portion of the shell 42 can be recessed toward the inside of the accommodating space 401 to form the first slot body 421, which is easy to manufacture and low in cost. The provision of the first slot body 421 can not only enhance the structural strength of the shell 42, but also the slot wall 4211 of the first slot body can be used to position and support the circuit board 43, such as connecting the bottom wall of the first slot body 421 to the circuit board 43 to position and support the circuit board 43. Accordingly, the slot wall 4211 of the first slot body can constitute the second support structure 49 or a portion of the second support structure 49.

[0199] The groove wall 4211 of the first groove body refers to all wall structures constituting the first groove body 421. The wall surface at the bottom of the first groove body 421 in the depth direction is the bottom wall of the first groove body 421, and the wall surface at the side of the first groove body 421 in the depth direction is the side wall of the first groove body 421.

[0200] As an example, the bottom wall of the first slot body 421 is bonded or snapped to the circuit board 43 , or the bottom wall of the first slot body 421 can be pressed against the circuit board 43 to position and fix the circuit board 43 .

[0201] As an example, the cross section of the first slot body 421 along the direction perpendicular to its depth can be set to be annular, polygonal or other shapes, which can be set specifically as needed.

[0202] As an example, the first slot body 421 can be set to one, or can be set to multiple, such as two, three, four, five, etc., which can be set according to needs. Multiple means two or more.

[0203] As an example, a first slot 421 is provided on a side of the housing 42 facing the circuit board 43, so that the slot wall 4211 of the first slot supports the circuit board 43. The side of the housing 42 facing the circuit board 43 refers to a side of the housing 42 that can be projected onto the circuit board 43 along the thickness direction X of the circuit board 43.

[0204] A first groove body 421 is provided on the shell 42, and the bottom wall of the first groove body 421 is connected to the circuit board 43, so that the circuit board 43 is supported by the groove wall 4211 of the first groove body. When manufacturing the shell 42, the first groove body 421 can be directly formed, which is convenient for processing and manufacturing.

[0205] In some embodiments, a structure such as a bracket or a pillar may be provided on the housing 42 to serve as a second supporting structure 49 to support the circuit board 43 .

[0206] In some embodiments, a partial area of ​​the housing 42 may also be thickened to form a second supporting structure 49 to support the circuit board 43 .

[0207] In some embodiments, the groove wall 4211 of the first groove body is made of a hard film material, so that the groove wall 4211 of the first groove body has good structural strength in the depth direction of the first groove body 421, so as to position and support the circuit board 43. The hard film material can be a material such as plastic, hard rubber, etc. that can be bent and deformed, but has a small elastic deformation capacity. Small elastic deformation capacity means that when an object is subjected to an external force, if the length change of the object in the direction of the external force is less than 5%, it is considered that its elastic deformation capacity is small.

[0208] In some embodiments, the entire shell 42 is made of a hard film material to form a thin shell structure, so that the shell 42 has a certain structural strength. The first groove body 421 thereon can provide certain support for the circuit board 43. In particular, pressurized gas is filled into the accommodating space 401, which can enable the shell 42 to better maintain its shape. Accordingly, the risk of deformation of the shell 42 and collision with the circuit board 43 due to extrusion is reduced.

[0209] As an example, only the groove wall 4211 of the first groove body may be made of a hard film material.

[0210] In some embodiments, the groove wall 4211 of the first groove body can also be made of a material that is easy to elastically deform, such as rubber, silicone, etc. Even if the groove wall 4211 of the first groove body is made of a material that is easy to elastically deform, since the material still has a certain structural strength, it can also provide a certain support for the circuit board 43, thereby reducing the risk of the housing 42 deforming and colliding with the circuit board 43.

[0211] In some embodiments, see Fig.18 A positioning portion 423 is protruded from the bottom of the first groove body 421 in a direction away from the cover body 41 , and the positioning portion 423 is used to connect the supporting medium.

[0212] The positioning portion 423 refers to a protruding structure disposed at the bottom of the first slot body 421 . The positioning portion 423 is protruded from the bottom of the first slot body 421 toward a direction away from the cover body 41 .

[0213] Since the shell 42 is made of flexible material, especially when it is made of diaphragm material, it is a thin diaphragm structure. A positioning portion 423 is provided on the shell 42, and a portion of the bottom of the first groove body 421 can be protruded in a direction away from the accommodating space 401 to form a groove structure. The groove wall of the groove structure forms the positioning portion 423, which is easy to manufacture and low in cost.

[0214] As an example, a structure such as a bracket or a support may be provided at the bottom of the first slot body 421 to serve as the positioning portion 423 .

[0215] As an example, the cross section of the positioning portion 423 along the direction perpendicular to the protruding direction thereof can be set to be a circular ring, a polygon or other shapes, which can be set specifically as needed.

[0216] As an example, the positioning portion 423 can be set to one or more, such as two, three, four, five, etc., which can be set according to needs. Multiple means two or more.

[0217] As an example, the bottom of the first slot body 421 may also be partially thickened to form the positioning portion 423 .

[0218] A positioning portion 423 is provided in the first groove body 421 to increase the overall structural strength of the shell 42. When in use, the positioning portion 423 can be abutted or connected to the supporting medium to better support and position the shell 42, thereby facilitating the installation and fixation of the shell 42 and the assembly and use of the electronic control component 400.

[0219] In some embodiments, when there is one first slot body 421 , one or more positioning portions 423 may be provided in the first slot body 421 .

[0220] In some embodiments, when there are multiple first slot bodies 421 , one or more positioning portions 423 may be provided in each first slot body 421 , or one or more positioning portions 423 may be provided in only some of the first slot bodies 421 .

[0221] In some embodiments, the positioning portion 423 is made of a hard film material so that the positioning portion 423 has good structural strength in the depth direction of the first slot body 421 to position and support the circuit board 43 .

[0222] In some embodiments, the positioning portion 423 may also be made of a material that is easily elastically deformed, such as rubber, silicone, etc. Even if the positioning portion 423 is made of a material that is easily elastically deformed, since the material still has a certain structural strength, it can also play a certain supporting role on the bottom of the first slot 421.

[0223] In some embodiments, see Fig.14 , Fig.16 and Fig.19 The shell 42 is formed with a second cavity 420 , and the second cavity 420 constitutes at least a part of the accommodating space 401 .

[0224] The second cavity 420 refers to a space formed in the housing 42, one side of which is open or has a through opening. For example, the middle part of the housing 42 may be recessed toward one side to form the second cavity 420; or the housing 42 may be a hollow structure with an open side.

[0225] The second concave cavity 420 constitutes at least a part of the accommodating space 401, which means that the second concave cavity 420 can constitute the entire accommodating space 401. For example, when the cover body 41 is a plate-shaped or sheet-shaped piece, the second concave cavity 420 can constitute the entire accommodating space 401. Of course, the second concave cavity 420 can also constitute a part of the accommodating space 401. For example, when the cover body 41 is formed with a first concave cavity 410, the first concave cavity 410 is combined with the second concave cavity 420 to form the accommodating space 401.

[0226] A second cavity 420 is provided on the housing 42 to form an accommodating space 401 for facilitating installation of the circuit board 43 .

[0227] In some embodiments, see Fig.16 and Fig.19 When the shell 42 is formed with a second cavity 420, the shell 42 is recessed with a second groove 422 along the fourth direction N4, the side wall of the second groove 422 is connected to the circuit board 43, and the second supporting structure 49 includes a groove wall 4221 of the second groove.

[0228] The fourth direction N4 may be perpendicular to the thickness direction X of the circuit board 43 , or may be a direction having a small angle with the direction perpendicular to the thickness direction X of the circuit board 43 , such as a direction having an angle within 10 degrees.

[0229] The groove wall 4221 of the second groove body refers to all wall structures constituting the second groove body 422. The wall surface at the bottom of the second groove body 422 in the depth direction is the bottom wall of the second groove body 422, and the wall surface at the side of the second groove body 422 in the depth direction is the side wall of the second groove body 422.

[0230] The second slot body 422 refers to a slot structure provided on the shell 42. Since the shell 42 is made of a flexible material, especially when it is made of a diaphragm material, it is a thin diaphragm structure. The second slot body 422 is provided on the side wall of the second cavity 420, and a portion of the side wall of the second cavity 420 can be recessed toward the inside of the accommodating space 401 to form the second slot body 422, which is convenient to manufacture and low in cost. The provision of the second slot body 422 can not only enhance the structural strength of the shell 42, but also the slot wall 4221 of the second slot body can be used to position and support the circuit board 43, such as connecting the side wall of the second slot body 422 to the circuit board 43 to position and support the circuit board 43. Accordingly, the slot wall 4221 of the second slot body can constitute the second support structure 49 or a portion of the second support structure 49.

[0231] As an example, the side wall of the second slot body 422 is bonded or snapped to the circuit board 43 , or the side wall of the second slot body 422 can be made to abut against the circuit board 43 to position and fix the circuit board 43 .

[0232] As an example, the second slot 422 can be set to one or more, such as two, three, four, five, etc., which can be set according to needs. Multiple means two or more.

[0233] A second groove body 422 is provided on the side wall of the second cavity 420, so that the side wall of the second groove body 422 is connected to the circuit board 43, so that the circuit board 43 is supported by the groove wall 4221 of the second groove body. When manufacturing the shell 42, the second groove body 422 can be directly formed, which is convenient for processing and manufacturing.

[0234] In some embodiments, the bottom of the second cavity 420 in the depth direction can be arranged opposite to the circuit board 43, and the side wall adjacent to the bottom of the second cavity 420 in the depth direction is recessed inward to form a second groove body 422. The depth direction of the second cavity 420 refers to the direction in which the second cavity 420 is recessed, that is, the fourth direction N4. The bottom of the second cavity 420 in the depth direction is arranged opposite to the circuit board 43, which means that the bottom of the second cavity 420 in the depth direction can be projected onto the circuit board 43 along the thickness direction X of the circuit board 43. Then the depth direction of the second cavity 420 is parallel to the thickness direction X of the circuit board 43. Of course, a certain angle error can be allowed, such as a 10-degree error. The side wall adjacent to the bottom of the second cavity 420 in the depth direction is hereinafter referred to as the side wall of the second cavity 420. The side wall of the second cavity 420 refers to the part of the shell 42 located on the side of the second cavity 420. The sidewall of the second cavity 420 is adjacent to the bottom of the second cavity 420 in the depth direction, and the sidewall of the second cavity 420 is located at the side of the second cavity 420 in the depth direction.

[0235] In some embodiments, a support, a pillar or other structure may be provided on the side wall of the second cavity 420 to serve as a second support structure 49 to support the circuit board 43. In some embodiments, a portion of the side wall of the second cavity 420 may be thickened to form a second support structure 49 to support the circuit board 43.

[0236] In some embodiments, the groove wall 4221 of the second groove body is made of a hard film material so that the groove wall 4221 of the second groove body has good structural strength in the depth direction of the second groove body 422 to position and support the circuit board 43.

[0237] As an example, only the groove wall 4221 of the second groove body may be made of a hard film material.

[0238] In some embodiments, the groove wall 4221 of the second groove body can also be made of a material that is easy to elastically deform, such as rubber, silicone, etc. Even if the groove wall 4221 of the second groove body is made of a material that is easy to elastically deform, since the material still has a certain structural strength, it can also provide a certain support for the circuit board 43, thereby reducing the risk of the housing 42 deforming and colliding with the circuit board 43.

[0239] In some embodiments, see Fig.16 and Fig.19 , a first groove body 421 and a second groove body 422 can be set on the shell 42 at the same time. Accordingly, the second supporting structure 49 includes a groove wall 4211 of the first groove body and a groove wall 4221 of the second groove body. The third direction N3 and the fourth direction N4 can intersect, such as the third direction N3 and the fourth direction N4 can be perpendicular to each other, or the third direction N3 and the fourth direction N4 can have an angle less than 90.

[0240] In some embodiments, see Fig.16 When the first slot body 421 and the second slot body 422 are provided on the shell 42, the slot wall 4211 of the first slot body can be connected to one side of the circuit board 43, and the slot wall 4221 of the second slot body can be connected to the other side of the circuit board 43 to fix the circuit board 43.

[0241] In some embodiments, see Fig.19 When the first slot body 421 and the second slot body 422 are provided on the shell 42 , the slot wall 4211 of the first slot body and the slot wall 4221 of the second slot body can be connected to one side of the circuit board 43 .

[0242] In some embodiments, see Figures 6 to 8 A connecting member 45 is provided on at least one side of the opening 411 of the cover body 41, and at least a portion of the connecting member 45 extends along the thickness direction X of the cover body 41. The connecting member 45 is bonded to the side wall of the connector socket 44 so that the side wall of the opening 411 is sealed and connected to the connector socket 44.

[0243] The connector 45 refers to a structural member used to connect the cover 41 and the connector socket 44. The shape of the connector 45 can be matched according to the shape of the opening 411 and the shape of the connector socket 44, that is, if a part of the connector 45 needs to be connected to the corresponding side of the opening 411, the shape of the part needs to be adapted to the shape of the opening 411; if another part of the connector 45 needs to be connected to the side wall of the connector socket 44, the shape of the other part needs to be adapted to the side wall of the connector socket 44.

[0244] Since the cover body 41 is made of a flexible material, especially when it is made of a diaphragm material, its thickness is relatively thin, which will make the side wall of the opening 411 also relatively thin. A connecting piece 45 is provided, and at least a portion of the connecting piece 45 is extended along the thickness direction X of the cover body 41. This can increase the area of ​​the portion where the connecting piece 45 is connected to the connector socket 44, thereby improving the connection strength between the connecting piece 45 and the connector socket 44.

[0245] At least part of the connector 45 is extended along the thickness direction X of the cover 41. As an example, a part of the connector 45 is connected to the cover 41, and another part of the connector 45 extends along the thickness direction X of the cover 41 so as to be connected to the connector socket 44. As an example, one side of the connector 45 is connected to the corresponding side of the opening 411, and the connector 45 as a whole can extend along the thickness direction X of the cover 41. One side of the connector 45 is connected to the corresponding side of the opening 411, and the side of the connector 45 can be connected to the corresponding side of the opening 411 by bonding, welding, etc., or the connector 45 and the cover 41 can be integrally formed.

[0246] As an example, a connector 45 may be provided on one side of the opening 411, so as to be connected to the connector socket 44 through the connector 45, thereby sealing the corresponding side of the opening 411 and the connector socket 44; and the other sides may be sealed and connected to the connector socket 44 using a sealant or the like. Of course, connectors 45 may also be provided on multiple sides of the opening 411, and when the connectors 45 are connected to the connector socket 44, sealing is achieved between multiple sides of the opening 411 and the connector socket 44.

[0247] A connector 45 is disposed on at least one side of the opening 411 to facilitate the connector socket 44 , thereby conveniently sealing and connecting the corresponding side of the opening 411 to the connector socket 44 .

[0248] In some embodiments, see Figures 6 to 8 , a connecting piece 45 is provided on each side of the opening 411 .

[0249] The connection member 45 is disposed on each side of the opening 411 means that a connection member 45 is disposed on each side of the opening 411 .

[0250] Connectors 45 are provided on each side of the opening 411 , which can facilitate sealing connection between each side of the opening 411 and the connector socket 44 , so as to seal the peripheral side of the connector socket 44 and improve the sealing performance.

[0251] In some embodiments, the connectors 45 on each side of the opening 411 are connected in sequence to form a frame shape.

[0252] The connectors 45 on each side of the opening 411 are connected in sequence to form a frame shape. As an example, the connectors 45 can be made relatively long along the two sides perpendicular to the thickness direction X of the cover body 41 to connect with adjacent connectors 45, so that the connectors 45 on each side of the opening 411 are connected in sequence to form a frame shape. As an example, two adjacent connectors 45 can also be connected by welding, bonding, etc., so that the connectors 45 on each side of the opening 411 are connected in sequence to form a frame shape.

[0253] Connecting multiple connectors 45 into a frame shape can improve the overall structural strength.

[0254] In some embodiments, the connecting member 45 is frame-shaped and is disposed around the opening 411 .

[0255] The connecting member 45 is frame-shaped, which means that the connecting member 45 is a frame-shaped structural member, so that the connecting member 45 surrounds the opening 411, so that there is a connecting member 45 on each side of the opening 411, so that the connecting member 45 only needs to be put on the connector socket 44, and the connecting member 45 can be conveniently connected to the surrounding side of the connector socket 44.

[0256] The connecting member 45 is arranged in a frame shape and is arranged around the opening 411 , so as to facilitate sealing connection with the peripheral side of the connector socket 44 .

[0257] In some embodiments, see Figure 7 The connecting member 45 and the cover body 41 are integrally formed.

[0258] The connecting member 45 and the cover body 41 are integrally formed, which means that the connecting member 45 and the cover body 41 are processed and manufactured as one piece.

[0259] As an example, when making the cover body 41, the connector 45 is directly processed on the side of the opening 411 using the flexible material used to make the cover body 41. This is convenient to process and can ensure that the connector 45 is well connected to the cover body 41. In this case, the connector 45 is also made of a flexible material, especially when it is made of a diaphragm material. The connector 45 is thin and can be easily deformed to be sealed and connected to the connector socket 44, thereby sealing the side wall of the opening 411 and the surrounding side of the connector socket 44.

[0260] As an example, the connector 45 and the cover body 41 can be formed by two-color injection molding to achieve integral molding of the connector 45 and the cover body 41. In this case, the cross-section of the connector 45 along the thickness direction X of the cover body 41 can be in the shape of a plate, sheet, block, etc., which facilitates the shape setting of the connector 45.

[0261] The connecting member 45 and the cover body 41 are integrally formed to facilitate processing and manufacturing.

[0262] In some embodiments, see Figure 8 , the connecting piece 45 is bonded and connected to the cover body 41 .

[0263] The connection between the connector 45 and the cover body 41 is bonded together, which means that the connector 45 and the cover body 41 are connected by using a bondable structure such as double-sided tape or sealant.

[0264] The connecting member 45 is bonded to the cover body 41 , and the connecting member 45 can be manufactured separately to connect the cover body 41 and the connector socket 44 .

[0265] In some embodiments, the connector 45 and the connector socket 44 can be connected using a bondable structure such as double-sided tape or sealant.

[0266] In some embodiments, the connecting member 45 and the connector socket 44 may also be connected by welding.

[0267] In some embodiments, the connecting member 45 is in the shape of a sheet or a plate.

[0268] The connecting member 45 is in a sheet shape and can be easily elastically deformed and / or bent to be connected to the connector socket 44 .

[0269] The connecting member 45 is in a plate shape, which is convenient for being manufactured separately, and then connects the cover body 41 and the connector socket 44 .

[0270] The use of a sheet-shaped or plate-shaped connecting member 45 has a simple structure, is easy to manufacture, and is also convenient for connecting the cover body 41 and the connector socket 44 .

[0271] In some embodiments, the connector 45 may have two adjacent side surfaces, one side surface connected to the cover body 41, and the other side surface connected to the connector socket 44. In this case, the cross-section of the connector 45 along the thickness direction X of the cover body 41 may be triangular, rectangular, L-shaped, etc.

[0272] In some embodiments, see Figure 7 and Figure 8 At least a portion of the connecting member 45 is extended from the cover body 41 toward the interior of the accommodating space 401 , and / or at least a portion of the connecting member 45 is extended from the cover body 41 toward a direction away from the accommodating space 401 .

[0273] At least part of the connector 45 is extended from the cover 41 toward the inside of the accommodation space 401. As an example, a part of the connector 45 is connected to the cover 41, and another part of the connector 45 extends toward the inside of the accommodation space 401 so as to be connected to the connector socket 44. As an example, one side of the connector 45 is connected to the corresponding side of the opening 411, and the connector 45 as a whole can extend toward the inside of the accommodation space 401. One side of the connector 45 is connected to the corresponding side of the opening 411, and the side of the connector 45 can be connected to the corresponding side of the opening 411 by bonding, welding, etc., or the connector 45 and the cover 41 can be integrally formed.

[0274] At least part of the connector 45 is extended from the cover 41 in a direction away from the accommodation space 401. As an example, a part of the connector 45 is connected to the cover 41, and another part of the connector 45 extends toward the outside of the accommodation space 401 so as to be connected to the connector socket 44. As an example, one side of the connector 45 is connected to the corresponding side of the opening 411, and the connector 45 as a whole can extend toward the outside of the accommodation space 401. One side of the connector 45 is connected to the corresponding side of the opening 411, and the side of the connector 45 can be connected to the corresponding side of the opening 411 by bonding, welding, etc., or the connector 45 and the cover 41 can be integrally formed.

[0275] As an example, a part of the connector 45 is connected to the cover 41, and one end of the other part of the connector 45 extends toward the outside of the accommodation space 401, and the other end extends toward the inside of the accommodation space 401, so as to be connected to the connector socket 44, so that the connector 45 can have both a part extending toward the inside of the accommodation space 401 and a part extending toward the outside of the accommodation space 401. As an example, one side of the connector 45 is connected to the corresponding side of the opening 411, and one end of the entire connector 45 extends toward the outside of the accommodation space 401, and the other end extends toward the inside of the accommodation space 401, so that the connector 45 can have both a part extending toward the inside of the accommodation space 401 and a part extending toward the outside of the accommodation space 401.

[0276] The above structural arrangement can facilitate the connection of the connecting member 45 with the connector socket 44 , so as to seal each side of the opening 411 with the connector socket 44 .

[0277] In some embodiments, see Figures 6 to 19 The electric control assembly 400 further includes a support plate 46 , and the housing 42 is mounted on the support plate 46 .

[0278] The support plate 46 refers to a plate member used for installation support. The support plate 46 can be made of metal, plastic, ceramic and other materials. The shape of the support plate 46 can be rectangular, square and the like, and can be specifically set according to the needs of the installation location.

[0279] A support plate 46 is provided to fix and support the housing 42, and the support plate 46 is connected to a supporting medium so that the electronic control component 400 can be installed on the supporting medium, such as on the box of the battery device 200, for easy assembly and use.

[0280] In some embodiments, the housing 42 may be directly mounted on a supporting medium, such as a box of the battery device 200, and then the electronic control assembly 400 may be mounted on a supporting medium, such as a box of the battery device 200, for easy assembly and use.

[0281] In some embodiments, see Figure 6 , Fig. 9 and Fig.11 The shell 42 is connected to the support plate 46 through a snap fastener 47.

[0282] The male and female buckle 47 refers to a combined structure of a male buckle and a female buckle. The male buckle is passed through two objects to be connected and inserted into the female buckle to snap the male buckle and the female buckle together to achieve snap-connection of the two objects.

[0283] The shell 42 and the support plate 46 are connected by using a snap fastener 47 , which is convenient to connect. In addition, the connection of the snap fastener 47 has a certain elasticity, which can protect the shell 42 .

[0284] In some embodiments, the housing 42 may also be connected and fixed to the support plate 46 by a bonding structure such as double-sided tape or sealant.

[0285] In some embodiments, the housing 42 may also be fixedly connected to the support plate 46 using fasteners such as screws and rivets.

[0286] In some embodiments, the edge of the cover 41 can be connected to the housing 42 using a bonding structure such as double-sided tape, sealant, etc. Of course, the edge of the cover 41 can also be connected to the housing 42 by welding.

[0287] According to some embodiments of the present application, the present application provides a battery device 200, including a battery cell 300 and an electronic control component 400 electrically connected to the battery cell 300. The electronic control component 400 includes a housing 42, a circuit board 43, a cover 41 and a support plate 46; the cover 41 is made of a diaphragm material; the housing 42 is made of a diaphragm material, the housing 42 is sealed and connected to the edge of the cover 41, and the cover 41 and the housing 42 enclose a receiving space 401; the circuit board 43 is installed in the receiving space 401, and a connector socket 44 is provided on the circuit board 43; an opening 411 is provided on the cover 41 for the connector socket 44 to extend out, and the side wall of the opening 411 is sealed and connected to the connector socket 44. The housing 42 is installed on the support plate 46. The receiving space 401 is filled with pressurized gas so that the gas pressure in the receiving space 401 is greater than the gas pressure outside the receiving space 401. The cover body 41 is provided with a first support structure 48 . A first groove 412 is provided on one side of the cover body 41 facing the circuit board 43 . The first support structure 48 includes a groove wall 4121 of the first groove. The bottom wall of the first groove 412 is connected to the circuit board 43 .

[0288] The cover 41 and the shell 42 are used to enclose the accommodation space 401 to accommodate and protect the circuit board 43, and an opening 411 is set on the cover 41 so that the connector socket 44 can extend out; the cover 41 and the shell 42 are made of flexible materials, so that the cover 41 and the shell 42 can produce large elastic deformation and / or bending deformation, so as to greatly weaken the influence of the dimension chain tolerance on the assembly of the connector socket 44, and reduce the risk of the side wall of the opening 411 interfering with the connector socket 44, so that the connector socket 44 can be extended from the opening 411; and the side wall of the opening 411 is sealed and connected with the connector socket 44, so that the electric control component 400 can meet the required protection level requirements, such as the IP40 level requirements. A first groove 412 is set on the cover 41, so that the bottom wall of the first groove 412 is connected to the circuit board 43, so that the circuit board 43 is supported by the groove wall 4121 of the first groove. When the cover 41 is made, the first groove 412 can be directly formed, which is convenient for processing and manufacturing. Filling the accommodating space 401 with pressurized gas to increase the air pressure of the accommodating space 401 can support the cover 41 by air pressure, so that the cover 41 maintains the processed shape, and reduces the risk of collapse and deformation of the cover 41, so as to support the circuit board 43 and the connector socket 44. A support plate 46 is provided to fix and support the housing 42, and the support plate 46 is connected to the supporting medium, so that the electronic control component 400 is installed on the supporting medium, such as the box of the battery device 200, for easy assembly and use.

[0289] According to some embodiments of the present application, the present application further provides an energy storage device 14, comprising a battery device 200 as described in the above embodiments, and the battery device 200 is used to store or provide electrical energy.

[0290] According to some embodiments of the present application, the present application further 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 a power generation device 132 and the energy storage device 14 .

[0291] According to some embodiments of the present application, the present application further 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.

[0292] According to some embodiments of the present application, the present application further provides a charging network 12, including a charging pile 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 for the charging pile.

[0293] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery device, characterized in that: The invention comprises a battery cell and an electric control component electrically connected to the battery cell, wherein the electric control component comprises: The cover body is made of flexible material; A shell body is sealed and connected to the cover body, and the cover body and the shell body enclose a containing space; A circuit board is installed in the accommodation space, and a connector socket is provided on the circuit board; The cover body is provided with an opening for the connector socket to extend out, and the side wall of the opening is sealedly connected to the connector socket.

2. The battery device according to claim 1, characterized in that The accommodating space is filled with pressurized gas, so that the gas pressure in the accommodating space is greater than the gas pressure outside the accommodating space.

3. The battery device according to claim 2, characterized in that: The pressurized gas is air or an inert gas.

4. The battery device according to any one of claims 1 to 3, characterized in that: The cover body is provided with a first supporting structure, and the first supporting structure is connected to the circuit board.

5. The battery device according to claim 4, characterized in that: The cover body is provided with a first groove along a first direction, the bottom wall of the first groove is connected to the circuit board, and the first supporting structure includes a groove wall of the first groove.

6. The battery device according to claim 4, characterized in that: The cover body is formed with a first cavity, which constitutes at least a part of the accommodating space. The cover body is concavely provided with a second groove along a second direction, the side wall of the second groove is connected to the circuit board, and the first supporting structure includes the groove wall of the second groove.

7. The battery device according to any one of claims 1 to 3, characterized in that: The shell is made of flexible material.

8. The battery device according to claim 7, characterized in that: The housing is provided with a second supporting structure, and the second supporting structure is connected to the circuit board.

9. The battery device according to claim 8, characterized in that: The shell is recessed with a first slot body along the third direction, the bottom wall of the first slot body is connected to the circuit board, and the second supporting structure includes the slot wall of the first slot body.

10. The battery device according to claim 9, characterized in that The bottom of the first trough body is protruding in a direction away from the cover body and is provided with a positioning portion for connecting with a supporting medium.

11. The battery device according to claim 8, characterized in that: The shell forms a second cavity, which constitutes at least a part of the accommodating space. The shell is recessed with a second groove body along a fourth direction. The side wall of the second groove body is connected to the circuit board. The second supporting structure includes the groove wall of the second groove body.

12. The battery device according to any one of claims 1 to 3, characterized in that: A connector is provided on at least one side of the opening on the cover body, at least part of which is extended along the thickness direction of the cover body, and the connector is bonded to the side wall of the connector socket so that the side wall of the opening is sealed to the connector socket.

13. The battery device according to claim 12, characterized in that: The connecting piece is arranged on each side of the opening.

14. The battery device according to claim 13, characterized in that: The connecting pieces on each side of the opening are connected in sequence to form a frame shape.

15. The battery device according to claim 12, characterized in that: The connecting piece is frame-shaped and is arranged around the opening.

16. The battery device according to claim 12, characterized in that: The connecting piece and the cover body are integrally formed, or the connecting piece and the cover body are bonded and connected.

17. The battery device according to claim 12, characterized in that: The connecting piece is in the shape of a sheet or a plate.

18. The battery device according to claim 12, wherein: At least a portion of the connecting member is extended from the cover body toward the interior of the accommodating space, and / or at least a portion of the connecting member is extended from the cover body toward a direction away from the accommodating space.

19. The battery device according to any one of claims 1 to 3, characterized in that: The electric control assembly further comprises a support plate, and the housing is mounted on the support plate.

20. The battery device according to claim 19, characterized in that The shell is connected to the support plate through a snap fastener.

21. An energy storage device, characterized in that: The invention comprises a battery device as described in any one of claims 1 to 20, wherein the battery device is used to store or provide electrical energy.

22. An electrical device, characterized in that: It comprises a battery device as described in any one of claims 1 to 20 or an energy storage device as described in claim 21, wherein the battery device is used to store or provide electrical energy.

Images