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 single battery and an electric control assembly electrically connected with the single battery, and the electric control assembly comprises a circuit board, a shell and a hard part; a connector socket is arranged on the circuit board; a containing cavity is formed in the shell, the circuit board is installed in the containing cavity, and an opening for the connector socket to stretch out is formed in the shell. The hard piece is installed on the shell and surrounds the connector socket, and the hard piece at least partially shields a gap between the connector socket and the side wall of the opening. The hard piece is arranged around the connector socket, and the hard piece at least partially shields the gap between the connector socket and the side wall of the opening, so that the gap between the connector socket and the side wall of the opening can be shielded, reduced or closed according to the requirement of the protection grade, and the electric control assembly can meet the requirement of the required protection grade. The size of the opening can be made large, so that the connector socket can pass through the opening conveniently.

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 of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor related to 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] A circuit board having a connector socket;

[0007] The housing has a receiving cavity inside, the circuit board is installed in the receiving cavity, and the housing has an opening for the connector socket to extend out;

[0008] The hard component is installed on the shell and arranged around the connector socket. The hard component at least partially blocks the gap between the connector socket and the side wall of the opening.

[0009] In the technical solution of the embodiment of the present application, a hard part is provided and installed on the shell, which is used to support the hard part. The hard part is provided around the connector socket and the hard part at least partially blocks the gap between the connector socket and the side wall of the opening. Thus, the gap between the connector socket and the side wall of the opening can be blocked, reduced or closed according to the protection level requirements, so that the electronic control component meets the required protection level requirements. Accordingly, the size of the opening can be made larger to facilitate the connector socket to pass through the opening, reduce 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.

[0010] In some embodiments, an adjustment member is detachably mounted on at least one side of the connector socket, a corresponding hard member abuts against the adjustment member, and the adjustment member is placed between the connector socket and the hard member to limit the distance between the connector socket and the corresponding side hard member.

[0011] An adjusting piece is provided, and the adjusting piece is detachably mounted on the side of the connector socket. When the hard piece is installed, the hard piece can be made to abut against the adjusting piece, so that the adjusting piece is used to limit the distance between the hard piece and the corresponding side of the connector socket. Therefore, after the hard piece is fixed, the adjusting piece can be removed to form a desired spacing between the hard piece and the connector socket. By changing the thickness of the adjusting piece, the distance between the hard piece and the corresponding side of the connector socket can be adjusted to meet the required protection level requirements.

[0012] In some embodiments, adjustment members are provided on each side of the connector socket.

[0013] Adjusting members are arranged on each side of the connector socket, which can limit the distance between each side of the connector socket and the corresponding hard member.

[0014] In some embodiments, the adjusting member is in a sleeve shape, and the adjusting member is adapted to be mounted on the connector socket.

[0015] The adjusting member is arranged in a sleeve shape to facilitate assembly on the connector socket, which is not only convenient for installation but also can conveniently define the distance between each side of the connector socket and the corresponding hard member.

[0016] In some embodiments, the hard member is bonded to a side wall of the connector socket.

[0017] By bonding the hard part to the side wall of the connector socket, the gap between the connector socket and the side wall of the opening can be well sealed, so that the electronic control component meets the required protection level requirements.

[0018] In some embodiments, the hard member has an inner hole, and the connector socket passes through the inner hole so that the hard member can be fitted on the connector socket.

[0019] The hard part is provided with an inner hole and is mounted on the connector socket. As long as the contour of the connector socket and the size of the inner hole of the hard part are controlled during production, the assembly gap can be well controlled when the hard part is mounted on the connector socket, the production efficiency is high, and the qualified rate can be improved.

[0020] In some embodiments, the difference between the distance between the two opposite side walls of the inner hole and the distance between the corresponding opposite sides of the connector socket is less than or equal to 2 mm, and the distance between each side wall of the inner hole and the connector socket is less than or equal to 1 mm.

[0021] The difference between the distance between the two opposite sides of the inner hole and the distance between the corresponding two sides of the connector socket is made less than or equal to 2mm. After the hard part is put on the connector socket, the distance between the side walls of the inner hole and the connector socket can be made less than or equal to 1mm to meet the requirements of protection level IP40.

[0022] In some embodiments, there are multiple hard pieces, and the multiple hard pieces are arranged around the connector socket.

[0023] A plurality of hard parts are combined to fit around the connector socket, which is convenient for design, and a plurality of hard parts can be called as needed to form connector sockets adapted to different shapes.

[0024] In some embodiments, at least one hard member obstructs at least a portion of the gap on two or three adjacent sides of the connector receptacle.

[0025] By covering at least a portion of the gaps on two or three adjacent sides of the connector socket with the hard component, the number of installed hard components can be reduced, thereby improving assembly efficiency when the hard component is used to surround the connector socket.

[0026] In some embodiments, the distance between the connector socket and the hard member is less than or equal to 1 mm.

[0027] By making the difference between the distance between the two opposite sides of the inner hole and the distance between the two corresponding sides of the connector socket less than or equal to 1 mm, the electric control component can meet the requirements of protection grade IP40.

[0028] In some embodiments, the hard member is adhesively connected to the housing.

[0029] The hard part is bonded to the shell to facilitate assembly of the hard part, and the hard part is supported by the shell.

[0030] In some embodiments, the hard part includes a connecting portion and an extending portion, one side of the connecting portion is connected to the housing, the extending portion is connected to a side of the connecting portion close to the connector socket, and the extending portion is extended along the thickness direction of the connecting portion.

[0031] The hard part is provided with a connecting portion so as to be connected to the shell, and an extending portion is provided and extended toward one side of the connecting portion, so as to increase the structural strength of the hard part so as to shield the gap between the connector socket and the side wall of the opening, improve the product qualification rate, and enable the electronic control component to meet the required protection level requirements.

[0032] In some embodiments, the housing includes a first shell and a second shell, the first shell and the second shell form a accommodating cavity; the first shell is provided with an opening, and / or the second shell is provided with an opening, and / or the first shell and the second shell are cooperated to have an opening.

[0033] The shell has a simple structure, is easy to manufacture, and is also convenient for assembling the circuit board.

[0034] 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.

[0035] In a fourth 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.

[0036] In a fifth 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.

[0037] In a sixth 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.

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

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

[0040] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0041] Figure 2 A schematic diagram of the structure of a charging network in some embodiments of the present application;

[0042] Figure 3 A schematic diagram of the structure of an energy storage system in some embodiments of the present application;

[0043] Figure 4 A schematic diagram of the structure of an energy storage device in some embodiments of the present application;

[0044] Figure 5 A schematic diagram of the exploded structure of a battery device according to some embodiments of the present application;

[0045] Figure 6 A schematic diagram of the structure of an electric control component in some embodiments of the present application;

[0046] Figure 7 for Figure 6 A schematic diagram of the structure of the electronic control component without the second housing;

[0047] Figure 8 for Figure 6 A schematic diagram of the front view of the electronic control component;

[0048] Fig. 9 For along Figure 8 Schematic diagram of the local cross-section structure of the AA line Figure 1 ;

[0049] Fig.10 For along Figure 8 Schematic diagram of the local cross-section structure of the AA line Figure 2 ;

[0050] Fig.11 For along Figure 8 Schematic diagram of the local cross-section structure of the AA line Figure 3 ;

[0051] Fig.12 For along Figure 8 Schematic diagram of the local cross-section structure of the AA line Figure 4 ;

[0052] Fig.13 It is a front view structural schematic diagram of a hard part in an electric control assembly in some embodiments of the present application;

[0053] Fig.14 This is a schematic diagram of the front view structure of the hard parts in the electronic control components of other embodiments of the present application.

[0054] Among them, the main marks of the drawings in the figure are:

[0055] 11. vehicle; 111. controller; 112. motor;

[0056] 12. Charging network; 121. Charging pile; 122. Connecting device;

[0057] 13. Energy storage system; 131. Power conversion device; 132. Power generation device; 14. Energy storage device; 141. Cabinet;

[0058] 200, battery device; 20, box body; 21, top cover; 22, bottom plate; 23, frame; 24, reinforcement beam; 241, mounting beam; 242, expansion beam;

[0059] 300, battery cell;

[0060] 400, electronic control component; 40, housing; 401, accommodating cavity; 402, opening; 403, gap; 41, first shell; 42, second shell; 43, mounting hole; 51, circuit board; 52, connector socket; 521, pin; 53, hard part; 530, inner hole; 531, connecting part; 532, extension part; 54, double-sided tape; 55, adjustment part. DETAILED DESCRIPTION

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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 shell 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, by arranging a hard part on the shell of the electronic control component so that the hard part surrounds the connector socket and at least partially blocks the gap between the connector socket and the side wall of the opening. In this way, the opening size can be made larger to reduce the influence of the dimension chain tolerance on the assembly of the connector socket, facilitate the connector socket to pass through the opening, facilitate the assembly of the electronic control component, and reduce the risk of the side wall of the opening interfering with the connector socket. The hard part at least partially covers the gap between the connector socket and the side wall of the opening, and can block, reduce or close the gap between the connector socket and the side wall of the opening according to the protection level requirements, so that the electronic control component meets the required protection level requirements.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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 .

[0081] 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.

[0082] 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 .

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] As an example, the power distribution module may be used to distribute power to modules in the energy storage device 14 that require power.

[0095] 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.

[0096] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells 300 .

[0097] 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.

[0098] 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 .

[0099] 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 .

[0100] 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 .

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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 .

[0106] 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 .

[0107] 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.

[0108] 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 .

[0109] 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 20 through wires.

[0110] 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.

[0111] See also Figures 5 to 14 According 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 housing 40, a circuit board 51, and a hard part 53. A housing 40 is provided with a receiving cavity 401; the circuit board 51 is installed in the receiving cavity 401, and a connector socket 52 is provided on the circuit board 51; an opening 402 for the connector socket 52 to extend out is opened on the housing 40; the hard part 53 is installed on the housing 40 and arranged around the connector socket 52, and the hard part 53 at least partially blocks the gap 403 between the connector socket 52 and the side wall of the opening 402.

[0112] The housing 40 refers to a structure forming an outer shell of the electric control component 400. The accommodating cavity 401 refers to an accommodating space formed inside the housing 40. The housing 40 can be made of metal, plastic, fiber, ceramic or other materials.

[0113] The opening 402 refers to a through-opening structure provided on the housing 40. The accommodating cavity 401 is connected to the outside through the opening 402.

[0114] A circuit board 51, 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.

[0115] The connector socket 52 refers to the socket structure of the connector, which is used to connect with the connector plug.

[0116] The connector socket 52 is provided on the circuit board 51 to be connected to the circuit board 51 , the connector socket 52 is supported by the circuit board 51 , and the circuit board 51 and the connector socket 52 are electrically connected.

[0117] The circuit board 51 is placed in the accommodating cavity 401, and the housing 40 supports and protects the circuit board 51. Accordingly, the connector socket 52 on the circuit board 51 extends from the opening 402 so as to be connected with the connector plug.

[0118] In order to facilitate the connector socket 52 to extend from the opening 402 , the size of the opening 402 is made larger than the size of the connector socket 52 . Then, when the connector socket 52 extends from the opening 402 of the housing 40 , a gap 403 is formed between the connector socket 52 and the side wall of the opening 402 .

[0119] The hard component 53 refers to a structural component made of a hard material, that is, when the hard component 53 is extruded, the hard component 53 will not be elastically deformed or slightly deformed along the extrusion direction, that is, the length of the hard component 53 along the extrusion direction remains unchanged or the length change of the hard component 53 along the extrusion direction is less than 5% of its length. The hard component 53 can be a sheet-shaped component, a block-shaped component, etc. The hard component 53 can be made of metal, plastic, hard rubber, etc.

[0120] The hard member 53 is mounted on the housing 40, and the housing 40 supports and fixes the hard member 53. The hard member 53 is arranged around the connector socket 52 so that the hard member 53 can block at least part of the gap 403 on the peripheral side of the connector socket 52, that is, the hard member 53 can reduce or close the gap 403 between the connector socket 52 and the side wall of the opening 402. One side of the hard member 53 is connected to the housing 40, such as the hard member 53 is bonded to the housing 40, or the hard member 53 is connected to the housing 40 by fasteners such as screws. The other side of the hard member 53 extends toward the direction of the connector socket 52 to at least partially block the gap 403 on the corresponding side of the connector socket 52, so as to reduce the size of the gap 403 to meet the required protection level requirements.

[0121] The hard part 53 is used to block or close the gap 403, so that the size of the opening 402 can be made larger, so that the connector socket 52 can be easily extended from the opening 402, reducing the interference of the side wall of the opening 402 on the connector socket 52, facilitating assembly, and thus reducing the influence of the dimension chain tolerance on the assembly of the connector socket 52. The hard part 53 can block the gap 403 according to the protection level requirements to adjust the size of the gap 403 on the side of the connector socket 52 to meet the protection level requirements. For example, the hard part 53 can be used to make the width of the gap 403 on the side of the connector socket 52 less than or equal to 1 mm to meet the protection level IP40 requirements.

[0122] Using a hard component 53 to cover at least a portion of the gap 403 around the connector socket 52 not only facilitates installation, but also increases the structural strength around the opening 402 to greatly reduce the risk of damage, and can better maintain the distance between the hard component 53 and the connector socket 52 so that the electronic control component 400 meets the required protection level requirements.

[0123] In the technical solution of the embodiment of the present application, a hard part 53 is provided and installed on the housing 40, and the hard part 53 is supported by the housing 40, and the hard part 53 is provided around the connector socket 52, and the hard part 53 at least partially blocks the gap 403 between the connector socket 52 and the side wall of the opening 402, so that the gap 403 between the connector socket 52 and the side wall of the opening 402 can be blocked, reduced or closed according to the protection level requirements, so that the electronic control component 400 meets the required protection level requirements, and accordingly, the size of the opening 402 can be made larger to facilitate the connector socket 52 to pass through the opening 402, thereby reducing the influence of the dimension chain tolerance on the assembly of the connector socket 52 and reducing the risk of the side wall of the opening 402 interfering with the connector socket 52.

[0124] In some embodiments, see Figure 6 , Fig.10 and Fig.11 At least one side of the connector socket 52 is detachably mounted with an adjusting member 55 , and the corresponding hard member 53 abuts against the adjusting member 55 . The adjusting member 55 is placed between the connector socket 52 and the hard member 53 to limit the distance between the connector socket 52 and the corresponding side hard member 53 .

[0125] The adjusting member 55 is a structural member used to limit the distance between the connector socket 52 and the corresponding side hard member 53. The area of ​​the adjusting member 55 corresponding to the side of the connector socket 52 is generally in the shape of a sheet or plate, so as to be inserted into the gap 403 between the connector socket 52 and the side wall of the opening 402. After the hard member 53 is installed to hold the adjusting member 55 and is installed on the housing 40, the distance between the adjusting member 55 and the corresponding side of the connector socket 52 is the thickness of the adjusting member 55. The adjusting member 55 can be made of metal, plastic, rubber, ceramic, etc.

[0126] The adjusting member 55 is detachably installed on at least one side of the connector socket 52, that is, the adjusting member 55 can be installed on only one side of the connector socket 52, or can be installed on multiple sides of the connector socket 52, and the adjusting member 55 is detachable, that is, after the adjusting member 55 is installed on the corresponding side of the connector socket 52, the adjusting member 55 can also be removed.

[0127] As an example, one or more sides of the connector socket 52 are provided with adjustment members 55, and the other sides of the connector socket 52 can determine the distance between the hard member 53 and the connector socket 52 through other structures, such as determining the distance between the hard member 53 and the connector socket 52 through measurement during the installation of the hard member 53. Of course, the hard member 53 on the other side of the connector socket 52 can also directly contact or abut the connector socket 52 to close the gap 403 between the corresponding side of the connector socket 52 and the side wall of the opening 402.

[0128] The corresponding hard part 53 refers to the hard part 53 on the side where the adjusting part 55 is installed on the connector socket 52. The corresponding hard part 53 abuts against the adjusting part 55, that is, the hard part 53 on the side where the adjusting part 55 is installed on the connector socket 52 abuts against the corresponding adjusting part 55, so as to determine the distance between the hard part 53 and the corresponding side of the connector socket 52 through the adjusting part 55.

[0129] When the adjusting member 55 is placed between the hard member 53 and the corresponding side of the connector socket 52, the gap between the hard member 53 and the corresponding side of the connector socket 52 can be blocked; after the adjusting member 55 is removed, a gap can be formed between the hard member 53 and the corresponding side of the connector socket 52, and the width of the gap is the thickness of the adjusting member 55. By using adjusting members 55 of different thicknesses, the width of the gap can be adjusted to achieve adjustment of the gap 403 between the hard member 53 and the corresponding side of the connector socket 52.

[0130] An adjusting member 55 is provided, and is detachably mounted on the side of the connector socket 52. When the hard member 53 is installed, the hard member 53 can be made to abut against the adjusting member 55, so that the adjusting member 55 limits the distance between the hard member 53 and the corresponding side of the connector socket 52. After the hard member 53 is fixed, the adjusting member 55 can be removed to form a desired spacing between the hard member 53 and the connector socket 52. By changing the thickness of the adjusting member 55, the distance between the corresponding side of the hard member 53 and the connector socket 52 can be adjusted to meet the required protection level.

[0131] In some embodiments, see Figure 6 , Fig.10 and Fig.11 , adjustment members 55 are provided on each side of the connector socket 52 .

[0132] An adjusting member 55 is disposed on each side of the connector socket 52 , that is, an adjusting member 55 is disposed on each side of the connector socket 52 .

[0133] An adjustment member 55 is provided on each side of the connector socket 52 , which can limit the distance between each side of the connector socket 52 and the corresponding hard member 53 .

[0134] In some embodiments, see Figure 6 , Fig.10 and Fig.11 The adjusting member 55 is in a sleeve shape and is adapted to be mounted on the connector socket 52 .

[0135] The sleeve-shaped adjusting member 55 refers to a shell-shaped structure with an opening in the middle of the adjusting member 55. The sleeve-shaped adjusting member 55 can be easily processed and manufactured, and when the hard member 53 is installed, the distance between each hard member 53 and the corresponding side of the connector socket 52 can be conveniently limited.

[0136] The adjusting member 55 is adapted to be mounted on the connector socket 52 , that is, the sleeve-shaped adjusting member 55 is adapted to be mounted on the connector socket 52 so that the hard member 53 covers the gap 403 on the peripheral side of the connector socket 52 to meet the required protection level requirements.

[0137] The adjusting member 55 is provided in a sleeve shape to facilitate assembly on the connector socket 52 , which is not only convenient for installation but also can conveniently define the distance between each side of the connector socket 52 and the corresponding hard member 53 .

[0138] In some embodiments, there may be multiple adjusting members 55, which are respectively disposed on different sides of the connector socket 52 to limit the distance between different sides of the connector socket 52 and the corresponding hard member 53. Multiple means two or more.

[0139] In some embodiments, see Figure 6 , Figure 8 and Fig.12 The hard component 53 is bonded and connected to the side wall of the connector socket 52 .

[0140] The hard component 53 is bonded to the side wall of the connector socket 52 , for example, the hard component 53 is connected to the side wall of the connector socket 52 via a double-sided adhesive 54 . Of course, the hard component 53 can also be connected to the side wall of the connector socket 52 via glue.

[0141] The hard component 53 is bonded to the side wall of the connector socket 52 , so that the gap 403 between the connector socket 52 and the side wall of the opening 402 can be well sealed, so that the electronic control component 400 meets the required protection level requirements.

[0142] In some embodiments, when the hard member 53 is sealed to the connector socket 52, a sealant may be filled between the hard member 53 and the connector socket 52 to connect the hard member 53 and the connector socket 52. Of course, the corresponding sides of the hard member 53 and the connector socket 52 may also be welded to each other.

[0143] In some embodiments, the hard component 53 may also be spaced apart from the connector socket 52 , so that the size and position of the hard component 53 may be set as needed to meet the required protection level requirements.

[0144] In some embodiments, see Figure 6 , Fig.11 and Fig.14 The hard component 53 has an inner hole 530 , and the connector socket 52 passes through the inner hole 530 , so that the hard component 53 is adapted to be mounted on the connector socket 52 .

[0145] The inner hole 530 refers to a through hole structure provided in the hard member 53. The inner hole 530 is provided on the hard member 53 so that the hard member 53 can be mounted on the connector socket 52, and the hard member 53 can be an integral structure for easy processing and manufacturing. The hard member 53 and the connector socket 52 are adapted to be assembled so that the hard member 53 blocks the gap 403 on the peripheral side of the connector socket 52 to meet the required protection level requirements.

[0146] The hard part 53 is provided with an inner hole 530 and is mounted on the connector socket 52. As long as the contour of the connector socket 52 and the size of the inner hole 530 of the hard part 53 are controlled during production, the assembly gap 403 can be well controlled when the hard part 53 is mounted on the connector socket 52, the production efficiency is high, and the qualified rate can be improved.

[0147] In some embodiments, see Figure 6 , Fig.11 and Fig.14 The difference between the distance d1 between the two opposite side walls of the inner hole 530 and the distance d2 between the corresponding two opposite sides of the connector socket 52 is less than or equal to 2 mm, and the distance d3 between each side wall of the inner hole 530 and the connector socket 52 is less than or equal to 1 mm.

[0148] The distance d1 between the two opposite side walls of the inner hole 530 refers to the distance between the side walls at the opposite sides along any direction perpendicular to the depth of the inner hole 530 .

[0149] The distance d2 between the two corresponding opposite sides of the connector socket 52 refers to the distance between the two opposite sides in the same direction as the two opposite side walls of the inner hole 530 .

[0150] The difference between the distance between the two opposite sides of the inner hole 530 and the distance between the corresponding two sides of the connector socket 52 is made less than or equal to 2 mm. After the hard component 53 is put on the connector socket 52, the distance d3 between the side walls of the inner hole 530 and the connector socket 52 can be made less than or equal to 1 mm to meet the requirements of protection level IP40.

[0151] In some embodiments, the difference between the distance d1 between the two opposite side walls of the inner hole 530 and the distance d2 between the corresponding two opposite sides of the connector socket 52 is set to other values ​​to meet the requirements of the required protection level.

[0152] In some embodiments, see Figures 6 to 12 There are multiple hard parts 53, and the multiple hard parts 53 are arranged around the connector socket 52.

[0153] A plurality of hard parts 53 are combined to fit around the connector socket 52, which is convenient for design. In addition, a plurality of hard parts 53 can be combined to form connector sockets 52 of different shapes as needed.

[0154] As an example, the hard member 53 may be a plurality of sheet-shaped or block-shaped members, and each hard member 53 is disposed on one side of the connector socket 52 , so that the plurality of hard members 53 are cooperatively disposed around the connector socket 52 .

[0155] As an example, the hard member 53 may be one or more, and the hard member 53 may also include other structural members, such as a plate-like member or a sheet-like member, to cooperate with the hard member 53 to be disposed around the connector socket 52 .

[0156] In some embodiments, the hard member 53 is an integral structure, such as a ring-shaped or frame-shaped structure, disposed around the connector socket 52 .

[0157] In some embodiments, see Figures 6 to 8 , along the depth direction of the opening 402, each hard member 53 is in a long strip shape, one side of the hard member 53 is connected to the housing 40, and the other side extends toward the connector socket 52 to cover at least part of the gap 403 on the corresponding side of the connector socket 52. This kind of hard member 53 is easy to process and manufacture, for example, a long hard member 53 can be manufactured, and then cut to the required length so as to be installed on the corresponding side of the connector socket 52.

[0158] In some embodiments, see Figure 6 and Fig.13 At least one hard member 53 blocks at least a portion of the gap 403 on two adjacent sides or three adjacent sides of the connector socket 52 .

[0159] At least one hard part 53 blocks at least a portion of the gap 403 on two adjacent sides or three sides of the connector socket 52, which means that among the multiple hard parts 53, at least one hard part 53 can be located on two adjacent sides or three sides of the connector socket 52 after being installed on the housing 40 to block at least a portion of the gap 403 on the corresponding two adjacent sides or three sides of the connector socket 52.

[0160] The hard component 53 covers at least a portion of the gap 403 on two adjacent sides or three adjacent sides of the connector socket 52. When the hard component 53 is used to surround the connector socket 52, the number of installed hard components 53 can be reduced, thereby improving assembly efficiency.

[0161] In some embodiments, see Figure 6 and Fig.13 , along the depth direction of the opening 402 , when the connector socket 52 is polygonal, at least one hard member 53 is L-shaped or U-shaped.

[0162] The hard component 53 is set in an L shape and installed on the shell 40, so that the hard component 53 can cover at least part of the gap 403 on the adjacent two sides of the connector socket 52, so that the corresponding adjacent two sides of the connector socket 52 meet the required protection level requirements.

[0163] The hard part 53 is set to be U-shaped and installed on the shell 40, so that the hard part 53 can cover at least part of the gap 403 on the three adjacent sides of the connector socket 52, so that the corresponding three adjacent sides of the connector socket 52 meet the required protection level requirements.

[0164] The hard component 53 is arranged in an L-shape or a U-shape. When the hard component 53 is used to surround the connector socket 52 , the number of hard components 53 to be installed can be reduced, thereby improving assembly efficiency.

[0165] In some embodiments, along the depth direction of the opening 402 , when the connector socket 52 is circular or elliptical, at least one hard member 53 is arc-shaped.

[0166] In some embodiments, see Figure 6 , Fig.11 and Fig.13 , a distance d3 between the connector socket 52 and the hard part 53 is less than or equal to 1 mm.

[0167] By making the distance d3 between the connector socket 52 and the hard component 53 less than or equal to 1 mm, the electric control component 400 can meet the requirements of the protection grade IP40.

[0168] In some embodiments, one side of the hard part 53 is connected to the housing 40, and the other side of the hard part 53 covers a portion of the gap 403 on the corresponding side of the connector socket 52, that is, there is a certain distance between the other side of the hard part 53 and the corresponding side of the connector socket 52 to meet the distance requirements for setting the protection level.

[0169] In some embodiments, one side of the hard member 53 is connected to the housing 40 , and the other side of the hard member 53 covers the entire gap 403 on the corresponding side of the connector socket 52 , such as the other side of the hard member 53 is connected to or abuts against the corresponding side of the connector socket 52 .

[0170] In some embodiments, see Figures 6 to 12 The hard component 53 is bonded to the housing 40 .

[0171] The hard component 53 is bonded to the outer shell 40 to facilitate assembly of the hard component 53 , and the outer shell 40 is used to support the hard component 53 .

[0172] As an example, the hard component 53 and the housing 40 may be connected by bonding with glue.

[0173] As an example, the hard component 53 and the housing 40 may be bonded together by a double-sided adhesive 54 .

[0174] In some embodiments, see Figure 6 and Fig.12 The hard part 53 includes a connecting portion 531 and an extending portion 532 . One side of the connecting portion 531 is connected to the housing 40 , and the extending portion 532 is connected to a side of the connecting portion 531 close to the connector socket 52 . The extending portion 532 is extended along the thickness direction of the connecting portion 531 .

[0175] The connection portion 531 refers to a portion of the structure of the hard member 53 that is connected to the housing 40. The connection portion 531 is provided to facilitate the connection between the hard member 53 and the housing 40.

[0176] The extension portion 532 refers to a portion of the structure on the hard member 53 that is located at a position corresponding to the gap 403. The extension portion 532 is provided to shield or close the gap 403 between the connector socket 52 and the side wall of the opening 402.

[0177] The extension portion 532 is connected to the side of the connecting portion 531 close to the connector socket 52. The extension portion 532 and the connecting portion 531 can be bonded together, or they can be connected by fasteners such as screws. Of course, the extension portion 532 and the connecting portion 531 can also be integrally formed to connect the extension portion 532 and the connecting portion 531.

[0178] The extension portion 532 is extended along the thickness direction of the connection portion 531, which means that the extension portion 532 extends along the thickness direction of the connection portion 531 toward one side of the connection portion 531, or the extension portion 532 extends along the thickness direction of the connection portion 531 toward two opposite sides of the connection portion 531. The extension portion 532 extends along the thickness direction of the connection portion 531 toward one side of the connection portion 531, and accordingly, the cross section of the hard member 53 is L-shaped; the extension portion 532 extends along the thickness direction of the connection portion 531 toward two opposite sides of the connection portion 531, and accordingly, the cross section of the hard member 53 is T-shaped. The cross section of the hard member 53 refers to the cross section along the thickness direction of the connection portion 531.

[0179] The hard part 53 is provided with a connecting portion 531 so as to be connected to the housing 40, and an extending portion 532 is provided and extended toward one side of the connecting portion 531, so as to increase the structural strength of the hard part 53 so as to shield the gap 403 between the connector socket 52 and the side wall of the opening 402, thereby improving the product qualification rate and enabling the electronic control component 400 to meet the required protection level requirements.

[0180] In some embodiments, see Figures 6 to 8 , the pin 521 of the connector socket 52 is connected to the circuit board 51 by patch welding.

[0181] The pin 521 of the connector socket 52 is connected to the circuit board 51 by surface mount welding, which means that the pin 521 of the connector socket 52 is connected to the corresponding soldering foot on the circuit board 51 by surface mount welding.

[0182] The pins 521 of the connector socket 52 are connected to the circuit board 51 by welding, which is convenient for assembly and batch production.

[0183] In some embodiments, through holes may be provided at positions corresponding to the soldering feet of the circuit board 51, and the pins 521 of the connector socket 52 may adopt a plug-in structure to be inserted into the corresponding through holes for soldering connection.

[0184] In some embodiments, see Figures 6 to 12 The housing 40 includes a first shell 41 and a second shell 42, and the first shell 41 and the second shell 42 form a receiving cavity 401; the first shell 41 is provided with an opening 402, and / or the second shell 42 is provided with an opening 402, and / or the first shell 41 and the second shell 42 are cooperated to provide an opening 402.

[0185] The first shell 41 refers to a shell structure that forms part of the structure of the housing 40. The second shell 42 refers to a shell structure that is combined with the first shell 41 to form the entire housing 40. The first shell 41 can be made of metal, plastic, ceramic, rubber, etc. The second shell 42 can be made of metal, plastic, ceramic, rubber, etc.

[0186] As an example, the first shell 41 can be a concave cavity with one side open, and the second shell 42 is in the shape of a plate to cover the concave cavity, so that the concave cavity forms the accommodating cavity 401 of the shell 40. As an example, the second shell 42 can be a concave cavity with one side open, and the first shell 41 is in the shape of a plate to cover the concave cavity, so that the concave cavity forms the accommodating cavity 401 of the shell 40. As an example, the first shell 41 and the second shell 42 can both be concave cavities with one side open, and the open side of the first shell 41 and the open side of the second shell 42 are mutually engaged to form the shell 40, and the two concave cavities are combined to form the accommodating cavity 401.

[0187] As an example, when there is only one opening 402, the opening 402 can be set only on the first shell 41; or the opening 402 can be set on the second shell 42; of course, a part of the opening 402 can be set on the first shell 41, and the other part can be set on the second shell 42, that is, the opening 402 can be set at the connection position between the first shell 41 and the second shell 42.

[0188] As an example, when there are multiple openings 402, multiple openings 402 may be provided only on the first shell 41. Openings 402 may also be provided only on the second shell 42; of course, a part of each opening 402 may also be provided on the first shell 41, and the other part may be provided on the second shell 42, that is, each opening 402 may be provided at the connection position between the first shell 41 and the second shell 42.

[0189] As an example, when there are multiple openings 402, the openings 402 can be set on both the first shell 41 and the second shell 42. Of course, the openings 402 can also be set on the first shell 41, the second shell 42, and the connection position between the first shell 41 and the second shell 42. Multiple means two or more.

[0190] The housing 40 has a simple structure, is easy to manufacture, and is also convenient for assembling the circuit board 51 .

[0191] In some embodiments, the connector socket 52 may be rectangular, circular, or other shapes, which may be selected based on actual needs.

[0192] In some embodiments, one connector socket 52 may be provided on the circuit board 51. Of course, multiple connector sockets 52 may also be provided on the circuit board 51. Multiple refers to two or more.

[0193] In some embodiments, see Figure 6 , Figure 8 and Fig.14 There are multiple connector sockets 52, and the hard component 53 is provided with an inner hole 530, so that the hard components 53 corresponding to at least two adjacent connector sockets 52 can be connected into one.

[0194] At least two adjacent connector sockets 52 refer to two adjacent connector sockets 52 among a plurality of connector sockets 52, or three adjacent connector sockets 52 of equal number; of course, it can also be any two adjacent connector sockets 52 among the plurality of connector sockets 52; it can also be that a plurality of connector sockets 52 are grouped, each group can be one or several connector sockets 52, and when there are multiple connector sockets 52 in a group, these connector sockets 52 can be arranged adjacent to each other.

[0195] The hard parts 53 corresponding to at least two adjacent connector sockets 52 are connected as a whole, which means that the hard parts 53 corresponding to two or more adjacent connector sockets 52 are connected as a whole, or the hard parts 53 corresponding to any two adjacent connector sockets 52 among multiple connector sockets 52 are connected as a whole, or multiple connector sockets 52 are grouped, and the hard parts 53 corresponding to multiple connector sockets 52 in each group are connected as a whole.

[0196] The hard parts 53 corresponding to at least two adjacent connector sockets 52 are connected as a whole, which also means that the adjacent hard parts 53 can be integrally formed or individually connected as a whole.

[0197] Connecting the hard parts 53 of at least two adjacent connector sockets 52 into one body can facilitate the connection and assembly of the hard parts 53 and the housing 40 .

[0198] As an example, when there are multiple connector sockets 52 , the hard parts 53 corresponding to two or more adjacent connector sockets 52 may also be arranged at intervals.

[0199] In some embodiments, see Figures 6 to 8 The housing 40 may be provided with a mounting hole 43 so as to connect the housing 40 to the supporting medium, and then connect the electric control component 400 to the supporting medium through fasteners such as bolts. The supporting medium may be a box or an external support. The mounting hole 43 refers to a through-hole structure provided on the housing 40.

[0200] As an example, when the housing 40 includes a first shell 41 and a second shell 42, the mounting hole 43 can be set on the first shell 41, or on the second shell 42, or at the connection between the first shell 41 and the second shell 42, so that the mounting hole 43 passes through the first shell 41 and the second shell 42.

[0201] 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 40, a circuit board 51 and a hard part 53. A housing 40 is provided with a receiving cavity 401; the circuit board 51 is installed in the receiving cavity 401, and a connector socket 52 is provided on the circuit board 51; an opening 402 for the connector socket 52 to extend is opened on the housing 40. The hard part 53 is installed on the housing 40, and the housing 40 is used to support and fix the hard part 53. There are multiple hard parts 53, and the multiple hard parts 53 are arranged around the connector socket 52. Adjustment parts 55 are detachably installed on each side of the connector socket 52, and the adjustment parts 55 are placed between the connector socket 52 and the hard parts 53, and each hard part 53 resists the adjustment parts 55.

[0202] By setting a hard part 53, the hard part 53 is installed on the shell 40, and the hard part 53 is supported by the shell 40. The hard part 53 is set around the connector socket 52, and the hard part 53 partially blocks the gap 403 between the connector socket 52 and the side wall of the opening 402, and the adjusting part 55 is detachably set, so that each hard part 53 abuts against the adjusting part 55, so as to limit the distance between the hard part 53 and the corresponding side of the connector socket 52 through the adjusting part 55, so that according to the protection level requirements, the gap 403 between the connector socket 52 and the side wall of the opening 402 can be blocked, reduced or closed, so that the electronic control component 400 meets the required protection level requirements. Accordingly, the size of the opening 402 can be made larger to facilitate the connector socket 52 to pass through the opening 402, reduce the influence of the dimension chain tolerance on the assembly of the connector socket 52, and reduce the risk of the side wall of the opening 402 interfering with the connector socket 52.

[0203] 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.

[0204] 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 .

[0205] 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.

[0206] 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.

[0207] 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: A circuit board, wherein a connector socket is provided on the circuit board; A housing having a receiving cavity therein, wherein the circuit board is installed in the receiving cavity, and the housing is provided with an opening for the connector socket to extend out; A hard component is mounted on the housing and arranged around the connector socket, wherein the hard component at least partially blocks a gap between the connector socket and a side wall of the opening.

2. The battery device according to claim 1, characterized in that: An adjusting member is detachably mounted on at least one side of the connector socket, and the corresponding hard member abuts against the adjusting member. The adjusting member is placed between the connector socket and the hard member to limit the distance between the connector socket and the hard member on the corresponding side.

3. The battery device according to claim 2, characterized in that: The adjusting member is disposed on each side of the connector socket.

4. The battery device according to claim 2, characterized in that: The adjusting member is in a sleeve shape and is adapted to be mounted on the connector socket.

5. The battery device according to any one of claims 1 to 4, characterized in that: The hard component has an inner hole, and the connector socket passes through the inner hole, so that the hard component is adapted to be mounted on the connector socket.

6. The battery device according to claim 5, characterized in that The difference between the distance between the two opposite side walls of the inner hole and the distance between the corresponding two opposite sides of the connector socket is less than or equal to 2 mm, and the distance between each side wall of the inner hole and the connector socket is less than or equal to 1 mm.

7. The battery device according to claim 1, characterized in that: The hard component is bonded and connected to the side wall of the connector socket.

8. The battery device according to any one of claims 1 to 4 or 7, characterized in that: There are multiple hard parts, and the multiple hard parts are arranged around the connector socket.

9. The battery device according to claim 8, characterized in that: At least one of the hard parts covers at least a portion of the gap on two adjacent sides or three adjacent sides of the connector socket.

10. The battery device according to any one of claims 1 to 4, characterized in that: The distance between the connector socket and the hard part is less than or equal to 1 mm.

11. The battery device according to any one of claims 1 to 4 or 7, characterized in that: The hard component is bonded to the shell.

12. The battery device according to any one of claims 1 to 4 or 7, characterized in that: The hard part includes a connecting part and an extending part, one side of the connecting part is connected to the shell, the extending part is connected to a side of the connecting part close to the connector socket, and the extending part is extended along the thickness direction of the connecting part.

13. The battery device according to any one of claims 1 to 4 or 7, characterized in that: The housing comprises a first shell and a second shell, the first shell and the second shell enclose the accommodating cavity; the first shell is provided with the opening, and / or the second shell is provided with the opening, and / or the first shell and the second shell are cooperated to provide the opening.

14. An energy storage device, characterized in that: The invention comprises a battery device as described in any one of claims 1 to 13, wherein the battery device is used to store or provide electrical energy.

15. An electrical device, characterized in that: It comprises a battery device as described in any one of claims 1 to 13 or an energy storage device as described in claim 14, wherein the battery device is used to store or provide electrical energy.

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