Battery device, energy storage device and power utilization device

Abstract

The utility model is suitable for the technical field of batteries, and provides a battery device, an energy storage device and a power utilization device, the battery device comprises an electric control component, the electric control component comprises a shell and a connector, the shell is provided with a through hole structure, and at least part of the connector is located in the through hole structure and is spaced from the side wall of the through hole structure; the electric control component further comprises a covering part arranged between the side wall and the connector, the covering part at least has a first form and a second form different from the first form, and the covering part can be changed into the first form from the second form. In the first form, one side of the covering part is connected to the connector, and the other side of the covering part is connected to the shell; according to the battery device provided by the embodiment of the invention, the covering part is arranged between the shell and the joint, so that the gap between the shell and the joint is sealed through the covering part, and the risk that external impurities enter the electric control part to cause damage is reduced; the covering part can deform, so that the connector and the shell can be conveniently installed, and the installation difficulty is reduced.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular 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] In current battery devices, the Battery Management System (BMS) is electrically connected to other electronic control components through cables. There is a tendency for gaps to exist between the cable connectors of the BMS or other electronic control components and their outer casings, which can allow dust, water and other debris to easily enter the outer casing, thus causing short circuits and other problems in the electronic control components and causing damage. Utility Model Content

[0004] In view of the above problems, the present application provides a battery device, an energy storage device and an electrical device, which can alleviate the problem that foreign matter can easily enter the interior of the electronic control component through the cable connector and cause damage.

[0005] In a first aspect, the present application provides a battery device, comprising: a casing; a battery cell accommodated in the casing; an electronic control component disposed on the casing and electrically connected to the battery cell, the electronic control component comprising an outer casing and a connector disposed in the outer casing, a through-hole structure being provided on the outer casing, at least a portion of the connector being located in the through-hole structure and spaced apart from a side wall of the through-hole structure; the electronic control component further comprising a covering member disposed between the side wall and the connector, the covering member having at least a first form and a second form different from the first form, and the covering member being capable of changing from the second form to the first form; in the first form, one side of the covering member is connected to the connector, and the other side of the covering member is connected to the casing to seal the gap between the connector and the side wall.

[0006] In the technical solution of this embodiment, a covering member is arranged between the outer shell and the connector, and the two sides of the covering member can respectively abut against the connector and the outer shell, so that the gap between the outer shell and the connector is sealed by the covering member, so that dust, water or other impurities are difficult to enter the inner shell, thereby reducing the risk of external impurities entering the inner part of the electronic control component and causing damage; the covering member is enabled to be deformed and can be connected only to the connector or the outer shell in the second form, so as to facilitate the installation of the connector and the outer shell and reduce the difficulty of installation.

[0007] In some embodiments, at least a portion of the cover is disposed within the housing.

[0008] In the technical solution of this embodiment, at least part of the cover is located inside the shell so that the shell can protect part of the cover and reduce the negative impact of impurities other than the electronic control components on the cover, thereby helping to improve the stability of the connection between the cover and the shell.

[0009] In some embodiments, in the second configuration, one side of the cover is connected to the housing, and the other side of the cover is spaced apart from the connector.

[0010] In the technical solution of this embodiment, the cover is connected to the housing in the second form to facilitate installation of the cover and reduce the difficulty of installing the cover.

[0011] In some embodiments, at least a portion of the cover is deformable such that the cover changes from the second configuration to the first configuration.

[0012] In the technical solution of this embodiment, at least part of the cover is able to deform so that the cover can change from the second form to the first form, thereby achieving sealing of the gap between the joint and the shell; at the same time, this arrangement also enables the cover to be more stably connected to the connected shell or joint, so as to reduce the risk of the cover falling off in the second form.

[0013] In some embodiments, the cover is a heat shrink structure.

[0014] In the technical solution of this embodiment, the cover is a heat-shrinkable structural member, so that the cover can change from the second form to the first form when the temperature rises, and achieve sealing of the gap between the joint and the shell; at the same time, this setting can also reduce the difficulty of operation and facilitate processing.

[0015] In some embodiments, the material of the covering member includes any one of polyethylene, polytetrafluoroethylene, polyvinyl chloride, and polyethylene terephthalate.

[0016] The technical solution of this embodiment provides some materials for the covering parts so that the covering parts can change from the second form to the first form when the temperature rises, thereby sealing the gap between the joint and the shell and reducing the risk of external impurities entering the interior of the shell.

[0017] In some embodiments, the cover includes a first portion and a second portion connected to the first portion, the first portion can be connected to the housing in a first form, and the second portion is disposed between the joint and the side wall; the second portion can be connected to the joint in the first form.

[0018] In the scheme of this embodiment, the first part is connected to the outer shell so that the cover can be fixed by the first part; the second part is enabled to abut against the joint when the cover is in the first form, so that the cover can abut against the joint through the second part, thereby enabling the cover to seal the gap between the joint and the outer shell and reduce the risk of external impurities entering the interior of the outer shell.

[0019] In some embodiments, a cavity is provided in the shell, and the first portion can be connected to a side of the shell facing the cavity in a first form.

[0020] In the technical solution of this embodiment, the first part is arranged on the side of the shell facing the cavity inside it, so that the first part can be located inside the shell, thereby reducing the negative impact that the first part may receive, reducing the risk of the first part falling off, and improving the connection stability of the first part.

[0021] In some embodiments, a fixing column penetrating through the first part is disposed on the housing to fix the first part.

[0022] In the technical solution of this embodiment, a fixing column is provided on the housing and passes through the first part, so that the first part is fixed to the housing through the fixing column, thereby limiting the displacement of the first part, thereby playing the role of fixing the cover.

[0023] In some embodiments, a bonding structure is provided on a side of the first portion facing the housing, and the bonding structure is connected to the housing.

[0024] In the technical solution of this embodiment, the first part is fixed to the outer shell by an adhesive structure, thereby limiting the displacement of the first part, thereby playing the role of fixing the cover.

[0025] In some embodiments, the second portion is disposed around a circumference of the joint.

[0026] In the technical solution of this embodiment, since the second part can be supported against the joint when the cover is in the first form, the second part surrounds the circumference of the joint so that the second part can more comprehensively cover the gap around the joint, thereby achieving a better sealing effect and reducing the risk of debris entering the outer shell.

[0027] In some embodiments, the electric control component includes a circuit board disposed in the housing, one end of the connector is connected to the circuit board, and the other end of the connector is located in the through-hole structure.

[0028] In the technical solution of this embodiment, a circuit board is arranged in the shell, and the connector is connected to the circuit board in the shell, so that the cover can reduce the risk of foreign objects falling on the circuit board, thereby reducing the risk of damage to the circuit board and improving the stability of the electronic control components.

[0029] In a second aspect, embodiments of the present application further provide an energy storage device, including a battery device provided by some embodiments of the first aspect, and the battery device is used to store or provide electrical energy.

[0030] In a third aspect, embodiments of the present application further provide an electrical device, including the battery device provided by some embodiments of the first aspect, or the energy storage device provided by some embodiments of the second aspect, wherein the battery device is used to store or provide electrical energy.

[0031] 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

[0032] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0033] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0034] Figure 2 A schematic diagram of the exploded structure of a battery provided in some embodiments of the present application;

[0035] Figure 3 A schematic diagram of the exploded structure of a battery cell provided in some embodiments of the present application;

[0036] Figure 4 A schematic diagram of the positional relationship between the electric control components and the box body in the battery device provided in some embodiments of the present application;

[0037] Figure 5 A schematic diagram of the exploded structure of an electric control component provided in some embodiments of the present application;

[0038] Figure 6 A schematic diagram of a main view of an electric control component provided in some embodiments of the present application;

[0039] Figure 7 for Figure 6 A local enlarged schematic diagram of the middle A;

[0040] Figure 8 The cover is in the second state Figure 6 Sectional view at the midline BB Figure 1 ;

[0041] Fig. 9 The cover is in the second state Figure 6 Sectional view at the midline BB Figure 2 ;

[0042] Fig.10 The cover is in the first state Figure 6 Schematic cross-sectional view at the midline BB;

[0043] Fig.11 A schematic diagram of the internal structure of an electric control component provided in some embodiments of the present application;

[0044] Fig.12 for Fig.11 A partial enlarged schematic diagram of point C in the middle.

[0045] The meanings of the marks in the figure are:

[0046] 1000. Vehicles;

[0047] 100. Battery device;

[0048] 10. Box body; 11. First box body; 12. Second box body;

[0049] 20. Battery cell; 21. Housing; 22. End cap; 23. Electrode assembly; 24. Electrode terminal;

[0050] 30. Electric control component; 31. Housing; 311. Through hole structure; 3111. Side wall; 312. Fixing column; 313. Cavity; 32. Circuit board; 321. Connector; 33. Cover; 331. First part; 332. Second part; 34. Adhesive structure;

[0051] 200, motor;

[0052] 300. Controller. DETAILED DESCRIPTION

[0053] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0054] 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.

[0055] 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. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0056] 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.

[0057] 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.

[0058] 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 pieces" refers to more than two pieces (including two pieces).

[0059] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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.

[0060] 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 those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0061] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0062] In addition to battery cells, battery devices are usually equipped with other electronic control components to achieve functions such as temperature control and charge and discharge control. These electronic control components are usually connected to each other through cables. For example, a battery management system is usually provided in a battery device. The battery management system is mainly used to monitor the status of the battery device. The battery management system is usually connected to other electronic control components through cables.

[0063] Accordingly, these electronic control components are usually provided with connectors for plugging cables. Due to the influence of processing technology (such as workpiece processing error, assembly error, etc.), it is usually difficult for the connector to be tightly sealed and fitted with the shell of the corresponding electronic control component, and a gap is easily generated, which makes it easy for dust, water and other impurities outside the electronic control component to enter the shell through the gap and easily fall on the circuit board, electrical connection terminals and other structures inside the shell, which can easily cause short circuit and other faults in the electronic control component.

[0064] Based on the above considerations, in order to alleviate the problem that external impurities can easily enter the interior of the electronic control component from the cable connector and cause damage, an embodiment of the present application provides a battery device, in which a cover is arranged between the outer casing and the connector of the electronic control component to block the gap through the cover; the cover has a first form and a second form, and the cover can seal the gap in the first form, and the cover can be connected to the outer casing or the connector in the second form.

[0065] In such a battery device, the cover can be connected to the housing and the connector in the first form to seal the gap between the housing and the connector, thereby reducing the risk of foreign matter entering the housing and improving the stability of the electronic control component.

[0066] The battery device disclosed in the embodiments of the present application can be used in electrical devices that use batteries as power sources or various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0067] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0068] refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000, for example, the battery device 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 300 and a motor 200, and the controller 300 is used to control the battery device 100 to power the motor 200, for example, for starting, navigating and driving the vehicle 1000.

[0069] In some embodiments of the present application, the battery device 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0070] refer to Figure 2 , Figure 2 An exploded view of a battery device 100 provided in some embodiments of the present application.

[0071] The battery device 100 (Battery Apparatus) mentioned in the embodiment of the present application may include one or more battery assemblies for providing voltage and capacity. The battery assembly (Battery Cell Assembly) may include a plurality of battery cells 20, and the plurality of battery cells 20 are connected in series, in parallel or in mixed connection through a busbar component.

[0072] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells 20 .

[0073] As an example, the battery assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells 20 to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells 20 by a cable tie.

[0074] In some embodiments, the battery assembly may be a battery pack, which includes a case 10 and one or more battery assemblies, wherein the battery assembly is accommodated in the case 10 .

[0075] As an example, the battery assembly may be a battery module, and the battery assembly may be accommodated in the box body 10 by fixing the battery module in the box body 10 .

[0076] As an example, the battery assembly may also be housed in the housing 10 by directly fixing the plurality of battery cells 20 to the housing 10 .

[0077] As an example, the box 10 may include a first box 11 and a second box 12. The first box 11 and the second box 12 are buckled together to form a closed space inside the box 10 to accommodate the battery assembly. The closed space here means covered or closed, which may be sealed or unsealed. The first box 11 may be a top cover or a bottom plate.

[0078] As an example, the box body 10 may include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that a closed space is formed inside the box body 10 to accommodate the battery assembly.

[0079] In some embodiments, the box 10 can be used as a part of the chassis structure of the vehicle 1000. For example, part of the box 10 can become at least a part of the floor of the vehicle 1000, or part of the box 10 can become at least a part of the cross beam and longitudinal beam of the vehicle 1000.

[0080] refer to Figure 3 , Figure 3 The schematic diagram of the exploded structure of the battery cell 20 provided in some embodiments of the present application. The battery cell 20 refers to the smallest unit constituting the battery device 100. As shown in the figure, the battery cell 20 includes an end cap 22, a housing 21, an electrode assembly 23 and other functional components.

[0081] The end cap 22 refers to a component that covers the opening of the shell 21 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 22 can be adapted to the shape of the shell 21 to match the shell 21. Optionally, the end cap 22 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 22 is not easily deformed when squeezed and collided, so that the battery cell 20 can have a higher structural strength and the safety performance can also be improved. Functional components such as electrode terminals 24 can be provided on the end cap 22. The electrode terminal 24 can be used to electrically connect with the electrode assembly 23 for outputting or inputting electrical energy of the battery cell 20. In some embodiments, the end cap 22 can also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The material of the end cap 22 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this. In some embodiments, an insulating member may be provided inside the end cap 22, and the insulating member may be used to isolate the electrical connection components in the housing 21 from the end cap 22 to reduce the risk of short circuit. For example, the insulating member may be plastic, rubber, or the like.

[0082] The shell 21 is a component used to cooperate with the end cap 22 to form the internal environment of the battery cell 20, wherein the formed internal environment can be used to accommodate the electrode assembly 23, the electrolyte and other components. The shell 21 and the end cap 22 can be independent components, and an opening can be set on the shell 21, and the internal environment of the battery cell 20 is formed by covering the opening with the end cap 22 at the opening. Without limitation, the end cap 22 and the shell 21 can also be integrated. Specifically, the end cap 22 and the shell 21 can form a common connection surface before other components are put into the shell, and when the interior of the shell 21 needs to be encapsulated, the end cap 22 covers the shell 21. The shell 21 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell 21 can be determined according to the specific shape and size of the electrode assembly 23. The material of the shell 21 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0083] The electrode assembly 23 is a component in the battery cell 20 where electrochemical reactions occur. One or more electrode assemblies 23 may be included in the housing 21. The electrode assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active materials constitute the main body of the electrode assembly 23, and the parts of the positive and negative electrode sheets without active materials each constitute a tab. The positive tab and the negative tab may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery cell 20, the positive active material and the negative active material react with the electrolyte, and the tabs connect the electrode terminals 24 to form a current loop.

[0084] refer to Figures 4 to 12 In a first aspect, an embodiment of the present application provides a battery device 100, comprising a housing 10, a battery cell 20 and an electronic control component 30. The battery cell 20 is contained in the housing 10. The electronic control component 30 is disposed on the housing 10 and is electrically connected to the battery cell 20. The electronic control component 30 comprises a housing 31 and a connector 321 disposed in the housing 31. A through-hole structure 311 is provided on the housing 31. At least part of the connector 321 is located in the through-hole structure 311 and is spaced apart from a side wall 3111 of the through-hole structure 311. The electronic control component 30 further comprises a cover 33 disposed between the side wall 3111 and the connector 321. The cover 33 has at least a first form and a second form different from the first form, and the cover 33 can change from the second form to the first form. In the first form, one side of the cover 33 is connected to the connector 321, and the other side of the cover 33 is connected to the housing 31 to seal the gap between the connector 321 and the side wall 3111.

[0085] The box 10 refers to a structure in the battery device 100 for providing a fixed foundation for the battery cell 20 or other structures. The box 10 may be prismatic, cylindrical or other shapes; the material of the box 10 may include metal, plastic or other materials.

[0086] The battery cell 20 is the smallest unit constituting the battery device 100 . The shape of the battery cell 20 may be a cuboid, a cylinder, or other shapes. The number of the battery cells 20 may be two, or three or more.

[0087] The electronic control component 30 refers to a device in the battery device 100 that uses electricity and is used to control the state of the battery device 100 or collect information. The electronic control component 30 may be a component in a battery management system (BMS) or a battery supervision circuit (CSC). When the electronic control component 30 may be a component in a battery management system (BMS), the battery management system (BMS) may be directly connected to each battery cell 20 and monitor the voltage, temperature and other state information of each battery cell 20 to ensure effective management of the battery, optimize the charging process through data analysis, extend the battery life, and prevent potential dangers such as overcharging, over-discharging, short circuit and overheating.

[0088] The electronic control component 30 is disposed on the box body 10. The electronic control component 30 can be located inside the box body 10 or outside the box body 10. The electronic control component 30 can be directly connected to the box body 10 or indirectly connected to the box body 10 through an intermediate structure. The electronic control component 30 can also be disposed on the battery cell 20 to be indirectly connected to the box body 10 through the battery cell 20.

[0089] The shell 31 refers to a structure in the electronic control component 30 that is used to provide protection and a fixing basis for other structures such as the connector 321. The shell 31 can be a box-shaped structure, or a frame structure or other structures; the shape of the shell 31 can be a prism, a cylinder or other shapes; the material of the shell 31 can include metal, plastic or other materials.

[0090] The through hole structure 311 refers to a hole structure opened on the shell 31; the through hole structure 311 can be a circular hole structure, a square hole structure, etc., the through hole structure 311 can be a straight hole structure, a stepped hole structure, a conical hole structure, etc.; the number of the through hole structures 311 can also be one, or two or more.

[0091] The connector 321 refers to a structure in the electric control component 30 used to connect the structure inside the electric control component 30 with the structure outside the electric control component 30, so that the connected structures are electrically connected or signal exchange is performed, etc.; the structure outside the electric control component 30 can be a cable or other electrical structure, that is, the connector 321 can be connected to the cable to be electrically connected to other electrical structures through the cable, and the connector 321 can also be directly electrically connected to the plug-in end of other electrical structures; the structure inside the electric control component 30 can be a circuit board 32 or other electrical structure, that is, the connector 321 can be connected to the circuit board 32 to enable the circuit board 32 to be electrically connected to the structure outside the electric control component 30 or signal exchange is performed, etc.

[0092] The connector 321 may be a USB plug, a DC plug, or other types of plug connectors; the number of the connectors 321 may be one, or two or more.

[0093] At least part of the connector 321 is located in the through-hole structure 311, so that the connector 321 can be connected to other electrical structures outside the electronic control component 30; because the connector 321 is also used to connect to the internal structure of the electronic control component 30, the connector 321 can be completely located in the through-hole structure 311, or only partially located in the through-hole structure 311, depending on the position of the internal structure of the electronic control component 30 connected to the connector 321 relative to the housing 31, and the end of the connector 321 connected to the external structure of the electronic control component 30 can be located in the through-hole structure 311, or can extend to the outside of the through-hole structure 311.

[0094] The side wall 3111 of the through hole structure 311 refers to the surface of the through hole structure 311 facing the joint 321. According to the shape of the through hole structure 311, the side wall 3111 can be arranged around the joint 321; the joint 321 and the side wall 3111 of the through hole structure 311 are spaced apart to facilitate the installation of the joint 321 and reduce the collision between the joint 321 and the shell 31.

[0095] According to the installation position of the joint 321, the joint 321 can be spaced apart from the opposite side wall 3111 on only one side, and the other sides of the joint 321 can be abutted against the side wall 3111; the joint 321 can also be spaced apart from the opposite side wall 3111 on multiple sides, or the surrounding sides of the joint 321 can be spaced apart from the side wall 3111.

[0096] It is understandable that, due to the influence of the processing technology, a gap is easily formed between the joint 321 and the side wall 3111, resulting in the joint 321 and the side wall 3111 being spaced apart.

[0097] The cover 33 refers to a structure in the electronic control component 30 for covering the gap between the connector 321 and the side wall 3111. The cover 33 can be arranged on the connector 321 or on the outer shell 31; the cover 33 can be located inside the outer shell 31 or outside the outer shell 31; the cover 33 can also be located only on one side of the connector 321, the cover 33 can also surround part of the circumference of the connector 321 to be opposite to multiple sides of the connector 321, and the cover 33 can also be arranged around the circumference of the connector 321.

[0098] It can be understood that since the cover 33 is used to cover the gap between the sealing joint 321 and the side wall 3111, the side of the cover 33 connected to the joint 321 will not have a negative impact on the plug-in end of the joint 321; for example, the cover 33 is connected to one side of the joint 321 and is connected to the peripheral side of the joint 321.

[0099] The cover 33 has at least a first form and a second form, and the cover 33 can change from the second form to the first form, that is, the cover 33 is a changeable structure, and the change of the cover 33 can be a change in shape or a change in position.

[0100] In the first form, one side of the cover 33 is connected to the connector 321, and the other side of the cover 33 is connected to the housing 31, at this time, the cover 33 can block the gap between the connector 321 and the side wall 3111; that is, when the electronic control component 30 is in use, the cover 33 is in the first state to prevent foreign matter from entering the housing 31; the cover 33 and the connector 321 can be connected by abutment, or by bonding, snap-fitting or other connection methods, and the cover 33 and the housing 31 can be connected by abutment, or by bonding, snap-fitting or other connection methods.

[0101] In the first form, the cover 33 can connect the joint 321 and the side wall 3111 of the through-hole structure 311 to cover the gap between the joint 321 and the side wall 3111, thereby preventing impurities outside the shell 31 from entering the inside of the shell 31 through the gap, thereby reducing the risk of damage to the electronic control component 30; at the same time, the cover 33 can also play an auxiliary fixing role for the joint 321 to fix the position of the joint 321 relative to the shell 31; that is, the first form is a state in which the cover 33 covers the gap between the sealing joint 321 and the side wall 3111.

[0102] The second form is different from the first form. In the second form, the cover 33 can be connected only to the connector 321 or the housing 31. The cover 33 can also be connected to other structures of the electronic control component 30 and is not connected to the connector 321 and the housing 31.

[0103] The covering member 33 can be changed from the second form to the first form to cover the gap between the sealing joint 321 and the side wall 3111; the change of the covering member 33 can be a change in shape, such as length extension, etc., and the change of the covering member 33 can also be a change in position, such as sliding displacement, etc.

[0104] The change process of the cover 33 from the second form to the first form can be an irreversible change, that is, after the cover 33 changes from the second form to the first form, it will be fixed in the first form and cannot return to the second form; the change process of the cover 33 from the second form to the first form can also be a recoverable change, that is, the cover 33 can also change from the first form to the second form.

[0105] In this embodiment, a cover 33 is provided between the housing 31 and the connector 321, and the two sides of the cover 33 can respectively abut against the connector 321 and the housing 31, so that the gap between the housing 31 and the connector 321 is sealed by the cover 33, so that dust, water or other impurities are difficult to enter the housing 31, thereby reducing the risk of external impurities entering the interior of the electronic control component 30 and causing damage; the cover 33 is deformable and can be connected only to the connector 321 or the housing 31 in the second form, so as to facilitate the installation of the connector 321 and the housing 31 and reduce the difficulty of installation.

[0106] In some embodiments, in the second form, the cover 33 can be connected to one of the connector 321 or the housing 31, that is, the cover 33 can be connected to the connector 321 or the housing 31; at this time, the cover 33 and the connector 321 or the other of the housing 31 can be spaced apart or just in contact with each other.

[0107] In the second form, the cover 33 is mainly used to be connected to one of the connector 321 or the housing 31 to facilitate the installation of the connector 321. That is, before the connector 321 and the internal structure of the electric control component 30 connected to the connector 321 are installed in place, the cover 33 is not connected to the connector 321 and the housing 31 at the same time, so as to reduce the interference of the cover 33 on the installation of the connector 321, and at the same time, it can also reduce the risk of poor sealing due to installation errors.

[0108] It can be understood that when the cover 33 is in the second form, the electronic control component 30 is in an intermediate state of the assembly process.

[0109] For example, the cover 33 can be connected only to the shell 31 and not connected to the joint 321 in the second form; after the joint 321 is installed in place, the cover 33 is changed from the second form to the first form, and the cover 33 is connected to the joint 321 to cover the gap between the sealing joint 321 and the side wall 3111.

[0110] For example, the cover 33 can also be connected only to the joint 321 and not connected to the shell 31 in the second form. At this time, the cover 33 moves synchronously with the installation of the joint 321; after the joint 321 is installed in place, the cover 33 is changed from the second form to the first form, and the cover 33 is connected to the shell 31 to cover the gap between the sealing joint 321 and the side wall 3111.

[0111] In this embodiment, the cover 33 is only connected to the connector 321 or the housing 31 in the second form to facilitate the installation of the connector 321 and reduce the collision interference between the connector 321 and the housing 31, the connector 321 and the cover 33, or the housing 31 and the cover 33.

[0112] refer to Figure 6 , Figure 8 , Fig. 9 In some embodiments, at least a portion of the cover 33 is disposed inside the housing 31 .

[0113] The interior of the shell 31 refers to the interior of the electronic control component 30, that is, the side of the shell 31 facing the internal structure of the electronic control component 30 such as the circuit board; at least part of the cover 33 is arranged inside the shell 31, that is, at least part of the first part 331 is accommodated in the shell 31, so as to protect the cover 33 through the shell 31, reduce the negative impact that the environment outside the electronic control component 30 may have on the cover 33, thereby improving the connection stability.

[0114] For example, since the cover 33 is connected to the shell 31 on one side in the first state, the portion of the cover 33 connected to the shell 31 is located inside the shell 31. This arrangement can protect the portion of the cover 33 connected to the shell 31 through the shell 31, reduce possible damage to the cover 33 caused by the environment, impurities, etc. outside the shell 31, and reduce the negative impact of the environment, impurities, etc. outside the shell 31 on the connection stability of the cover 33.

[0115] In this embodiment, at least a portion of the cover 33 is located inside the housing 31 so that the housing 31 protects the portion of the cover 33 and reduces the negative impact that impurities outside the electronic control component 30 may have on the cover 33, thereby helping to improve the stability of the connection between the cover 33 and the housing 31.

[0116] refer to Figure 6 , Figure 8 , Fig. 9 In some embodiments, in the second form, one side of the cover 33 is connected to the housing 31 , and the other side of the cover 33 is spaced apart from the connector 321 .

[0117] In the second form, one side of the cover 33 is connected to the housing 31, and the other side is spaced apart from the joint 321. The spaced apart arrangement of the cover 33 and the joint 321 can reduce the interference of the cover 33 on the installation of the joint 321, and reduce the friction or collision between the joint 321 and the cover 33, thereby reducing possible damage to the cover 33 and reducing the negative impact on the sealing effect of the cover 33.

[0118] The cover 33 may be fixedly connected to the housing 31 by screwing, clamping, bonding or other means, or may be slidably connected to the housing 31 by a slide groove, a slide rail or other means.

[0119] For example, when the cover 33 changes its position from the second form to the first form, one side of the cover 33 can be slidably connected to the shell 31 by a slide groove, a slide rail or other means; in the process of the cover 33 changing from the second form to the first form, the cover 33 slides relative to the shell 31 until it abuts against the joint 321; after the cover 33 abuts against the joint 321, the cover 33 can be fixedly connected to the joint 321 by bonding, welding or the like.

[0120] For example, when the cover 33 changes its shape from the second form to the first form, the cover 33 can be fixedly connected to the shell 31 by screwing, bonding, riveting or other methods; in the process of the cover 33 changing from the second form to the first form, the cover 33 can be deformed by heating, cooling or the like so that the side of the cover 33 facing the joint 321 abuts against the joint 321; after the cover 33 abuts against the joint 321, the cover 33 can be fixedly connected to the joint 321 by bonding, welding or the like.

[0121] The side of the cover 33 facing the joint 321 may be located inside the housing 31 , or may extend outside the housing 31 through the through hole structure 311 .

[0122] For example, the side of the cover 33 facing the joint 321 can be bent outside the shell 31 and parallel to the side wall of the adjacent joint 321. At this time, the shape of the side of the cover 33 facing the joint 321 can be L-shaped; when the cover 33 changes from the second form to the first form, this setting can increase the contact area of ​​one end of the cover 33 facing the joint 321, so that the cover 33 can better contact the joint 321 and reduce the risk of external impurities entering the shell 31.

[0123] For example, the side of the cover 33 facing the joint 321 can be bent into the shell 31 and parallel to the side wall of the adjacent joint 321. At this time, the shape of the side of the cover 33 facing the joint 321 can be L-shaped; when the cover 33 changes from the second form to the first form, this setting can increase the contact area of ​​one end of the cover 33 facing the joint 321, so that the cover 33 can better contact the joint 321 and reduce the risk of external impurities entering the shell 31.

[0124] For example, the side of the cover 33 facing the joint 321 can be bent toward both the inside and outside of the shell 31 and parallel to the side wall of the adjacent joint 321. At this time, the shape of the side of the cover 33 facing the joint 321 can be T-shaped; when the cover 33 changes from the second form to the first form, this setting can increase the contact area of ​​one end of the cover 33 facing the joint 321, so that the cover 33 can better contact the joint 321 and reduce the risk of external impurities entering the shell 31.

[0125] The cover 33 can be installed before the connector 321, or it can be installed after the connector 321 is installed. For example, the cover 33 is connected to the housing 31 before the connector 321. Since the connector 321 is connected to the structure inside the electronic control component 30, after the connector 321 is installed, the structure connected to the connector 321 may be closer to the housing 31, which may result in a smaller installation space for the cover 33, which is not conducive to the installation of the cover 33. Therefore, the cover 33 is installed before the connector 321 to reduce the difficulty of installing the cover 33.

[0126] In this embodiment, the cover 33 is connected to the housing 31 in the second form to facilitate the installation of the cover 33 and reduce the difficulty of installing the cover 33; it also reduces the interference of the cover 33 on the installation of the connector 321 and reduces the collision between the connector 321 and the cover 33 during the installation process.

[0127] refer to Figure 6 , Figures 8 to 10 In some embodiments, at least a portion of the cover 33 is deformable so that the cover 33 changes from the second shape to the first shape.

[0128] At least part of the cover 33 is deformable, that is, the cover 33 may be only partially deformed, or the entire cover 33 may be deformed; when the cover 33 is only partially deformed, the side of the cover 33 facing the joint 321 may be deformed, the side of the cover 33 connected to the shell 31 may be deformed, or other positions of the cover 33 may be deformed.

[0129] The deformation of the cover 33 can change it from the second shape to the first shape, so that the cover 33 can contact the joint 321, thereby covering the space between the joint 321 and the side wall 3111 and playing a sealing role.

[0130] In this embodiment, at least a portion of the cover 33 is deformed so that the cover 33 can change from the second form to the first form, thereby sealing the gap between the joint 321 and the outer shell 31; at the same time, this arrangement also enables the cover 33 to be more stably connected to the connected outer shell 31 or joint 321, thereby reducing the risk of the cover 33 falling off in the second form.

[0131] In some embodiments, the cover 33 is a heat shrinkable structural member.

[0132] Heat-shrinkable structural parts refer to structural parts made using the heat-shrinkage characteristics of materials. Heat shrinkage refers to the behavior of materials shrinking when heated. The thermal deformation behavior of heat-shrinkable structural parts is usually unidirectional, that is, in the absence of external force, it is difficult for heat-shrinkable structural parts to undergo typical thermal expansion and contraction behavior with temperature changes after shrinking.

[0133] The cover 33 is a heat shrinkable structural component. After the joint 321 is installed in place, the cover 33 can be heated to change the cover 33 from the second form to the first form, so that one side of the cover 33 can be connected to the joint 321, and the other side of the cover 33 can be connected to the shell 31.

[0134] For example, take the case where the cover 33 is connected to the outer shell 31 on one side under the second form and the other side is spaced apart from the joint 321. After the joint 321 is installed in place, the cover 33 is heated. At this time, the cover 33 gradually changes from the second form to the first form. During this process, the cover 33 shrinks due to the heat, and the side of the cover 33 facing the joint 321 gradually approaches the joint 321 and contacts the joint 321, while the side of the cover 33 connected to the outer shell 31 is always connected to the outer shell 31.

[0135] The covering member 33 may be heated directly by a heat gun, a heat shrink machine, etc., or may be heated by infrared radiation heating or other methods.

[0136] In this embodiment, the cover 33 is a heat-shrinkable structural member, so that the cover 33 can change from the second form to the first form when the temperature rises, and achieve the sealing of the gap between the joint 321 and the shell 31; at the same time, this setting can also reduce the difficulty of operation and facilitate processing.

[0137] In some embodiments, the material of the cover 33 includes any one of polyethylene, polytetrafluoroethylene, polyvinyl chloride, and polyethylene terephthalate.

[0138] Polyethylene has good heat shrinkage characteristics and requires a low temperature for heat shrinkage, thereby reducing the damage that the temperature during the heat shrinkage of the cover 33 may cause to other structures; at the same time, polyethylene also has excellent mechanical properties, excellent chemical stability, and excellent insulation properties. Polyethylene can be processed into a desired shape of the cover 33 by injection molding, blow molding, extrusion molding, or other methods.

[0139] Polytetrafluoroethylene has good heat shrinkage characteristics and a high heat shrinkage ratio, so that it can shrink faster and better contact the joint 321, thereby having better sealing performance; at the same time, polytetrafluoroethylene also has excellent corrosion resistance and excellent insulation performance. Polytetrafluoroethylene can be processed into a cover 33 of a desired shape by molding, extrusion molding or other methods.

[0140] After special treatment (such as radiation cross-linking), polyvinyl chloride can shrink and recover to its original shape, so as to facilitate repeated use; at the same time, polyvinyl chloride also has excellent mechanical strength, excellent electrical insulation performance, excellent stability, etc. Polyvinyl chloride can be processed into a cover 33 of a desired shape by injection molding, extrusion molding, calendering molding or other methods.

[0141] Polyethylene terephthalate has good heat shrinkage characteristics and requires a low temperature for heat shrinkage, thereby reducing the damage to other structures caused by the temperature during the heat shrinkage of the cover 33; at the same time, polyethylene terephthalate also has excellent mechanical properties, excellent chemical stability, and excellent insulation properties. Polyethylene terephthalate can be processed into a cover 33 of a desired shape by injection molding, blow molding, extrusion molding, or other methods.

[0142] This embodiment provides some materials for the cover 33 so that the cover 33 can change from the second form to the first form when the temperature rises, thereby sealing the gap between the joint 321 and the shell 31 and reducing the risk of external impurities entering the shell 31.

[0143] refer to Figure 6 , Figures 8 to 10 In some embodiments, the cover 33 includes a first portion 331 and a second portion 332 connected to the first portion 331, the first portion 331 can be connected to the housing 31 in a first form, and the second portion 332 is disposed between the joint 321 and the side wall 3111; the second portion 332 can be connected to the joint 321 in the first form.

[0144] The first portion 331 refers to a partial structure in the cover 33 that can be connected to the shell 31. When the cover 33 is in the first form, the first portion 331 is connected to the shell 31; the first portion 331 can be connected to the shell 31 by bonding, screwing, clamping or other means, and the first portion 331 can also be pressed on the shell 31; according to the shape of the cover 33, the first portion 331 can be an annular structure, or it can be rectangular, semicircular or other shapes.

[0145] The second portion 332 refers to a partial structure in the cover 33 that can be connected to the joint 321. When the cover 33 is in the first form, the second portion 332 is connected to the joint 321. The second portion 332 can be connected to the joint 321 by bonding, screwing, clamping or other means, and the second portion 332 can also be pressed on the joint 321. According to the shape of the cover 33, the second portion 332 can be an annular structure, or it can be rectangular, semicircular or other shapes.

[0146] The second part 332 can be directly connected to the first part 331, and there may be other parts between the second part 332 and the first part 331, that is, the second part 332 can be indirectly connected to the first part 331; according to the material of the covering part 33, the second part 332 can be connected to the first part 331 by welding, bonding or other methods, and the second part 332 can also be integrally formed with the first part 331.

[0147] The second part 332 is located between the joint 321 and the side wall 3111, so that the second part 332 can be connected to the joint 321 after the cover 33 changes from the second form to the first form; according to the shape of the cover 33, the second part 332 can be a ring structure, a strip structure or a structure of other shapes.

[0148] When the cover 33 is in the second form, depending on the arrangement of the cover 33, the first part 331 can be connected to the shell 31 and the second part 332 can be spaced apart from the joint 321, or the second part 332 can be connected to the joint 321 and the first part 331 can be spaced apart from the shell 31.

[0149] For example, when the cover 33 changes its position from the second form to the first form, one side of the cover 33 can be slidably connected to the shell 31 through a slide groove, a slide rail or other means. At this time, the first part 331 and the second part 332 can move synchronously so that the first part 331 can be connected to the shell 31, and the second part 332 can be connected to the joint 321.

[0150] For example, when the cover 33 changes its shape from the second form to the first form (for example, the cover 33 is a heat shrinkable structural member), the cover 33 can be fixedly connected to the shell 31 by screwing, bonding, riveting or other means. At this time, only the first part 331 or the second part 332 can be deformed, or both the first part 331 and the second part 332 can be deformed, so that the first part 331 can be connected to the shell 31, and the second part 332 can be connected to the joint 321.

[0151] In this embodiment, the first part 331 is connected to the outer shell 31 so that the cover 33 can be fixed by the first part 331; the second part 332 is enabled to abut against the joint 321 when the cover 33 is in the first form, so that the cover 33 can abut against the joint 321 by the second part 332, so that the cover 33 can seal the gap between the joint 321 and the outer shell 31, reducing the risk of external impurities entering the inner part of the outer shell 31.

[0152] refer to Figure 6 , Figures 8 to 10 In some embodiments, a cavity 313 is provided in the housing 31 , and the first portion 331 can be connected to a side of the housing 31 facing the cavity 313 in a first form.

[0153] The cavity 313 refers to a spatial structure provided inside the housing 31 , and the cavity 313 is used to accommodate the structure inside the electronic control component 30 , such as the circuit board 32 , etc. The cavity 313 may be a rectangular space, a cylindrical space, a spherical space, or a space of other shapes; at least a portion of the connector 321 is accommodated in the cavity 313 .

[0154] When the cover 33 is in the first form, the first part 331 is connected to the side of the shell 31 facing the cavity 313, that is, at least a portion of the first part 331 is accommodated in the cavity 313, so that the first part 331 is protected by the shell 31, reducing the negative impact of the environment outside the electronic control component 30 on the first part 331, thereby improving the connection stability.

[0155] For example, when the cover 33 is a heat shrinkable structural member and the first part 331 is connected to the shell 31 in the second form, the second part 332 is deformed by heat and connected to the joint 321. At this time, the arrangement can also reduce the possible heating of the first part 331 through the shell 31, so as to reduce the deformation of the first part 331 or reduce the risk of deformation of the first part 331, thereby reducing the negative impact of heating on the connection stability of the first part 331.

[0156] In this embodiment, the first part 331 is arranged on the side of the outer shell 31 facing the cavity 313 inside it, so that the first part 331 can be located inside the outer shell 31, thereby reducing the negative impact that the first part 331 may receive, reducing the risk of the first part 331 falling off, and improving the connection stability of the first part 331.

[0157] refer to Figure 6 , Figure 8 , Figures 10 to 12 In some embodiments, a fixing column 312 penetrating through the first portion 331 is provided on the housing 31 to fix the first portion 331 .

[0158] The fixing column 312 refers to a structure on the outer shell 31 for fixing the first part 331. The fixing column 312 can only fix part of the first part 331, or fix the entire first part 331 on the outer shell 31; the fixing column 312 can be cylindrical, prismatic or other shapes; the fixing column 312 is arranged on the outer shell 31, and the fixing column 312 can be connected to the outer shell 31 by welding, bonding or other methods, and the fixing column 312 can also be integrally formed with the outer shell 31; the material of the fixing column 312 can include metal, plastic or other materials, and the material of the fixing column 312 can be the same as the material of the outer shell 31, or it can be different.

[0159] The number of the fixing posts 312 may be one, or two or more. For example, the number of the fixing posts 312 is multiple and they are evenly spaced around the through hole structure 311 to better fix the first portion 331 .

[0160] The fixing column 312 can pass through the first part 331, that is, a hole structure for the fixing part to pass through can be set on the first part 331, and the fixing column 312 can pass through the hole structure to fix the first part 331; the fixing column 312 can directly limit the movement of the first part 331 in its radial direction, and at the axis of the fixing column 312, the fixing column 312 can limit the movement of the first part 331 through the friction force between it and the first part 331.

[0161] It is understandable that a limit portion may be provided at the end of the fixing column 312 away from the outer shell 31, and the maximum width of the limit portion may be greater than the diameter of the hole structure on the first portion 331. In this case, the first portion 331 is located between the limit portion and the outer shell 31, and the limit portion may support the first portion 331, so as to limit the axial displacement of the first portion 331 on the fixing column 312 through the limit portion.

[0162] Example, reference Figures 8 to 10The axial direction of the fixing column 312 is perpendicular to the arrangement direction of the joint 321 and the side wall 3111. The direction shown by the X-axis in the figure is the arrangement direction of the joint 321 and the side wall 3111, and the direction shown by the Y-axis is the axial direction of the fixing column 312. Because the direction of movement or deformation of the covering member 33 is mainly the arrangement direction of the joint 321 and the side wall 3111 during the process of the covering member 33 changing from the second form to the first form, this setting enables the fixing column 312 to better limit the displacement of the first part 331 to fix the first part 331.

[0163] For example, in the case where the covering member 33 is a heat-shrinkable structural member, the covering member 33 can be changed from the second form to the first form when heated. During this process, the first portion 331 fixed by the fixing column 312 is protected by the outer shell 31 and is not easily deformed or the deformation amount is small. At this time, the first portion 331 can be more stably connected to the outer shell 31 under the fixing action of the fixing column 312; because the portion where the first portion 331 and the second portion 332 are connected is close to the through-hole structure 311, the outer shell 31 has a weaker protective effect on this portion of the first portion 331. At this time, this portion of the first portion 331 can also be deformed along with the second portion 332, that is, in the direction from the second portion 332 to away from the second portion 332, the deformation amount of the first portion 331 will gradually decrease, so that the portion of the first portion 331 away from the second portion 332 can be more stably connected to the outer shell 31.

[0164] In this embodiment, a fixing column 312 is provided on the housing 31 and passes through the first portion 331 , so that the first portion 331 is fixed to the housing 31 through the fixing column 312 , thereby limiting the displacement of the first portion 331 , thereby playing the role of fixing the cover 33 .

[0165] refer to Figure 6 , Fig. 9 In some embodiments, a bonding structure 34 is provided on a side of the first portion 331 facing the housing 31 , and the bonding structure 34 is connected to the housing 31 .

[0166] The bonding structure 34 refers to a structure on the outer shell 31 used to bond the first part 331. The bonding structure 34 is used to fix at least a portion of the first part 331 on the outer shell 31, that is, the bonding structure 34 can only fix a portion of the first part 331, or can fix the entire first part 331 on the outer shell 31; the bonding structure 34 can include a structural adhesive layer bonded to the outer shell 31 or other structure with bonding ability; the bonding structure 34 is arranged between the outer shell 31 and the first part 331, that is, one side of the bonding structure 34 is connected to the side of the first part 331 facing the outer shell 31, and the other side of the bonding structure 34 is connected to the side of the outer shell 31 facing the first part 331.

[0167] The adhesive structure 34 can completely cover the portion of the first portion 331 that is opposite to the outer shell 31 . At this time, the adhesive structure 34 can seal the gap between the first portion 331 and the outer shell 31 , thereby better preventing external impurities from entering the inner portion of the outer shell 31 .

[0168] The adhesive structure 34 may also be arranged at intervals in a regional shape; depending on the coverage area of ​​the adhesive structure 34, the number of the adhesive structures 34 may be one, or two or more; for example, the number of the adhesive structures 34 is multiple, and the adhesive structure 34 is circular, and the multiple adhesive structures 34 are evenly spaced along the circumference of the through hole structure 311.

[0169] For example, in the case where the covering member 33 is a heat-shrinkable structural member, the covering member 33 can be changed from the second form to the first form when heated. During this process, the first portion 331 fixed by the adhesive structure 34 is protected by the outer shell 31 and is not easily deformed or the deformation is small. At this time, the first portion 331 can be relatively stably connected to the outer shell 31 under the fixing effect of the adhesive structure 34; because the portion where the first portion 331 and the second portion 332 are connected is close to the through-hole structure 311, the outer shell 31 has a weaker protective effect on the first portion 331. At this time, the first portion 331 can also be deformed along with the second portion 332, that is, in the direction from the second portion 332 to away from the second portion 332, the deformation of the first portion 331 will gradually decrease, so that the portion of the first portion 331 away from the second portion 332 can be more stably connected to the outer shell 31.

[0170] In this embodiment, the first portion 331 is fixed to the housing 31 by the adhesive structure 34 , thereby limiting the displacement of the first portion 331 , thereby playing the role of fixing the cover 33 .

[0171] refer to Figure 6 , Figure 7 In some embodiments, the second portion 332 is disposed around the circumference of the joint 321 .

[0172] Due to the limitation of processing technology, it is difficult for the joint 321 to be sealed and fitted with a side wall 3111 of the through-hole structure 311, that is, there is easily a gap between the joint 321 and the side wall 3111 of the through-hole structure 311; at the same time, if the joint 321 is to be sealed and fitted with the side wall 3111 of the through-hole structure 311, it is easy to cause collision and friction damage between the joint 321 and the outer shell 31.

[0173] Accordingly, the second portion 332 is arranged around the circumference of the joint 321. Since the second portion 332 is located between the joint 321 and the side wall 3111, there is a gap between the circumference of the joint 321 and the side wall 3111 at this time, thereby reducing the collision of the joint 321 during the installation process; at the same time, after the joint 321 is installed in place, the sealing portion can change from the second form to the first form. At this time, the second portion 332 can block the gap around the joint 321 to better and more comprehensively block the gap between the sealing joint 321 and the side wall 3111, thereby better preventing external debris from entering the housing 31 and achieving a better sealing effect.

[0174] In this embodiment, since the second portion 332 can be supported against the joint 321 when the cover 33 is in the first form, the second portion 332 surrounds the circumference of the joint 321 so that the second portion 332 can more comprehensively cover the gap around the joint 321, thereby achieving a better sealing effect and reducing the risk of debris entering the outer shell 31.

[0175] In some embodiments, the electric control component 30 includes a circuit board 32 disposed in a housing 31 , one end of a connector 321 is connected to the circuit board 32 , and the other end of the connector 321 is located in the through-hole structure 311 .

[0176] The circuit board 32 refers to the circuit board 32 accommodated in the housing 31, one end of the connector 321 is connected to the circuit board 32, and the other end is located in the through-hole structure 311, so that an external cable or other electrical structure can be plugged into the connector 321 and electrically connected to the circuit board 32 or exchange signals through the connector 321.

[0177] In this embodiment, a circuit board 32 is arranged in the outer shell 31, and the connector 321 is connected to the circuit board 32 in the outer shell 31, so that the cover 33 can reduce the risk of foreign objects falling on the circuit board 32, thereby reducing the risk of damage to the circuit board 32 and improving the stability of the electronic control component 30.

[0178] In some embodiments, the battery device 100 includes an electronic control component 30 , which is a battery management system.

[0179] The electronic control component 30 includes a shell 31, a cavity 313 is provided in the shell 31, a circuit board 32 is provided in the cavity 313, and a connector 321 is electrically connected to the circuit board 32; a through hole structure 311 is opened on the shell 31, and one end of the connector 321 away from the circuit board 32 extends into the through hole structure 311.

[0180] The electric control component 30 also includes a cover 33, which includes a first portion 331 and a second portion 332. The first portion 331 is fixedly connected to a side of the housing 31 facing the cavity 313, and the second portion 332 surrounds the connector 321 and is disposed between the connector 321 and the side wall 3111 of the through-hole structure 311.

[0181] The cover 33 has a first form and a second form. After the cover 33 is heated, the cover 33 can be deformed from the second form to the first form. In the first form, the second part 332 is against the joint 321, and the first part 331 is connected to the shell 31. At this time, the cover 33 can block the gap around the sealing joint 321 to prevent external debris from entering the shell 31. In the second form, the second part 332 is spaced apart from the joint 321, and the first part 331 is connected to the shell 31.

[0182] In a second aspect, some embodiments of the present application further provide an energy storage device, including the battery device 100 provided in some embodiments of the first aspect.

[0183] The energy storage device includes one or more battery clusters to increase the voltage and capacity of the energy storage device. The battery cluster may include multiple battery cells 20, and the multiple battery cells 20 are connected in series through a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0184] The energy storage device 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 can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device 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 provided in the embodiment of the present application can be any power system that requires the use of an energy storage device.

[0185] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0186] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters, wherein the battery clusters are housed in the cabinet.

[0187] In some embodiments, the energy storage device 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.

[0188] As an example, the thermal management module may include a liquid cooling unit that provides cooling liquid for adjusting the temperature of the battery cells 20 to each battery device 100 through a pipeline.

[0189] As an example, the master control module can be used as a battery management unit of a battery cluster to monitor and manage the battery cluster. The master control module can monitor information such as the current, voltage, power or temperature of the battery cluster. For example, the charge and discharge current and voltage of the battery cluster can be controlled. The master control module includes a slave battery management unit (SBMU), a fusion switch and other modules.

[0190] As an example, the master control module can be used as a battery management unit of the energy storage device to monitor and manage the energy storage device. The master control module can monitor information such as the current, voltage, power, state of charge or temperature of the energy storage device. For example, the charging and discharging current, voltage, etc. of the energy storage device can be controlled. As an example, the master control module includes an insulation monitoring module IMM (Insulation Monitoring Module, abbreviated as IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU), Ethernet ETH (EtherNet, ETH) and a fiber optic conversion module and other modules.

[0191] 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 fire in the energy storage system.

[0192] As an example, the power distribution module can be used to distribute power to modules in the energy storage device that require power.

[0193] In a third aspect, some examples of the present application further provide an electric device, a battery device 100 provided by some embodiments of the first aspect, or an energy storage device provided by some embodiments of the second aspect, wherein the battery device 100 is used to store or provide electric energy.

[0194] 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: include: Box; A battery cell is contained in the box; An electric control component is disposed on the box body and electrically connected to the battery cell, the electric control component comprises a housing and a connector disposed in the housing, the housing is provided with a through-hole structure, at least a portion of the connector is located in the through-hole structure and is spaced apart from a side wall of the through-hole structure; The electric control component further includes a cover disposed between the side wall and the connector, the cover having at least a first form and a second form different from the first form, and the cover can change from the second form to the first form; In the first configuration, one side of the cover is connected to the joint, and the other side of the cover is connected to the housing to seal a gap between the joint and the side wall.

2. The battery device according to claim 1, characterized in that: At least a portion of the cover is disposed inside the housing.

3. The battery device according to claim 2, characterized in that: In the second form, one side of the cover is connected to the housing, and the other side of the cover is spaced apart from the connector.

4. The battery device according to claim 1, characterized in that: At least a portion of the cover is deformable so that the cover changes from the second shape to the first shape.

5. The battery device according to claim 1, characterized in that: The covering member is a heat shrinkable structural member.

6. The battery device according to claim 1, characterized in that: The material of the covering member includes any one of polyethylene, polytetrafluoroethylene, polyvinyl chloride, and polyethylene terephthalate.

7. The battery device according to any one of claims 1 to 6, characterized in that: The cover comprises a first portion and a second portion connected to the first portion, wherein the first portion can be connected to the housing in the first form; The second portion is disposed between the joint and the side wall, and the second portion can be connected to the joint in the first state.

8. The battery device according to claim 7, characterized in that: A cavity is provided in the shell, and the first portion can be connected to a side of the shell facing the cavity in the first form.

9. The battery device according to claim 7, characterized in that: The housing is provided with a fixing column penetrating through the first part to fix the first part.

10. The battery device according to claim 7, characterized in that: A bonding structure is provided on a side of the first portion facing the shell, and the bonding structure is connected to the shell.

11. The battery device according to claim 7, characterized in that: The second portion is disposed around a circumference of the joint.

12. The battery device according to any one of claims 1 to 6, characterized in that: The electric control component comprises a circuit board arranged in the housing, one end of the connector is connected to the circuit board, and the other end of the connector is located in the through-hole structure.

13. An energy storage device, characterized in that: Comprising the battery device according to any one of claims 1-12.

14. An electrical device, characterized in that: The invention comprises the battery device according to any one of claims 1 to 12 or the energy storage device according to claim 13, wherein the battery device is used to store or provide electrical energy.

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