Battery device and electric equipment

Abstract

The embodiment of the utility model provides a battery device and electric equipment, and relates to the technical field of batteries. The battery device comprises a box body, single batteries and an electric control assembly, the electric control assembly comprises an electric appliance shell and a circuit board installed in the electric appliance shell, the electric appliance shell comprises a first wall, the first wall is provided with a wiring hole, the hole wall of the wiring hole is provided with a first connecting part, the circuit board is provided with a wiring seat installed in the wiring hole, and the wiring seat is provided with a second connecting part. The first connecting part and the second connecting part are connected in an embedded mode. According to the invention, the first connecting part and the second connecting part are connected in an embedded manner, so that there is no gap between the wiring seat and the wiring hole in the direction perpendicular to the wall surface of the first wall, and the possibility that solid particles and liquid enter the electric appliance shell through the connection part of the wiring hole and the wiring seat is reduced. And the protection level of the connection part of the wiring hole and the wiring seat on solid particles and liquid is improved.

Description

Technical Field

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

[0002] Battery devices are widely used in electronic devices, such as mobile phones, laptop computers, battery cars, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc.

[0003] The battery device includes an electronic control component. The connection between the electrical housing of the electronic control component and the terminal block on the circuit board has a poor level of protection against solid particles and liquids. Therefore, how to improve the level of protection between the electrical housing of the electronic control component and the terminal block against solid particles and liquids is a research direction in battery technology. Utility Model Content

[0004] The present application provides a battery device and an electrical device, which can improve the protection level of the connection between the electrical housing and the wiring socket of the electric control component against solid particles and liquids.

[0005] In a first aspect, an embodiment of the present application provides a battery device, comprising a case, a battery cell and an electronic control component, wherein the battery cell and the electronic control component are connected and both are installed in the case, wherein the electronic control component comprises an electrical housing and a circuit board installed in the electrical housing, the electrical housing comprises a first wall, the first wall is provided with a wiring hole, the hole wall of the wiring hole is provided with a first connecting portion, the circuit board is provided with a wiring seat installed in the wiring hole, the wiring seat is provided with a second connecting portion, and the first connecting portion is embeddedly connected to the second connecting portion.

[0006] By adopting the above technical solution, a first connecting part is provided on the hole wall of the wiring hole, and a second connecting part is provided on the circumferential outer edge of the wiring seat. The first connecting part and the second connecting part are embedded in each other, so that there is no gap between the wiring seat and the wiring hole in the wall direction perpendicular to the first wall, thereby reducing the possibility of solid particles and liquids entering the electrical housing through the connection between the wiring hole and the wiring seat, and improving the protection level of the connection between the wiring hole and the wiring seat against solid particles and liquids.

[0007] In some embodiments of the present application, the embedded connection includes plugging.

[0008] By adopting the above technical solution, the first connecting part and the second connecting part are embedded and matched by plugging, which has a simple structure and is easy to process.

[0009] In some embodiments of the present application, the first connection portion is one of a slot and a plug-in portion, the second connection portion is the other of the slot and the plug-in portion, and the slot and the plug-in portion are plug-fitted.

[0010] By adopting the above technical solution, the slot and the plug-in part are plugged together, the structure is simple, and it is easy to assemble and disassemble.

[0011] In some embodiments of the present application, the first connecting portion is the plug-in portion, the second connecting portion is a slot, the first wall includes opposite inner wall surfaces and outer wall surfaces, the first connecting portion is provided with a first guide surface connected to the inner wall surface and inclined, the first guide surface is used for guiding and cooperating with the slot, and / or the first connecting portion is provided with a second guide surface connected to the outer wall surface and inclined, the second guide surface is used for guiding and cooperating with the slot.

[0012] By adopting the above technical solution, a first guide surface and / or a second guide surface is provided on the plug-in part. When the plug-in part is inserted into the slot, the first guide surface or the second guide surface cooperates with the inner wall of the slot, which can facilitate the plug-in part to enter the slot and improve the plug-in efficiency.

[0013] In some embodiments of the present application, the first wall includes opposite inner wall surfaces and outer wall surfaces, the arrangement direction from the inner wall surface to the outer wall surface is a first direction, the wiring seat includes a seat body and a first frame and a second frame sleeved on the seat body, the first frame and the second frame are arranged at intervals along the first direction, and the first frame, the second frame and the seat body are surrounded to form the slot arranged around the seat body.

[0014] By adopting the above technical solution, the terminal block is designed to be a block body and a first frame and a second frame which are sleeved on the block body. During assembly, the first frame located in the electrical appliance shell can be installed first, and then the second frame can be installed. The distance between the first frame and the second frame in the first direction can be adjusted so that the width of the slot formed by the second frame and the first frame can meet the plug-in requirements of the plug-in part of the electrical appliance shell.

[0015] In some embodiments of the present application, the first wall includes opposite inner wall surfaces and outer wall surfaces, and the arrangement direction from the inner wall surface to the outer wall surface is a first direction. Along the first direction, there are multiple slots and multiple plug-in parts, and the multiple slots and the multiple plug-in parts are connected one-to-one.

[0016] By adopting the above technical solution, multiple plug-in parts and multiple slots can form a staggered plug-in structure, thereby improving the connection stability between the electrical housing and the mounting base, while providing multiple protections along the first direction, further improving the protection ability of the connection between the wiring hole and the wiring base against solid particles and liquids.

[0017] In some embodiments of the present application, the first wall includes opposite inner wall surfaces and outer wall surfaces, the arrangement direction from the inner wall surface to the outer wall surface is a first direction, and along a second direction or a third direction intersecting the first direction, a plurality of the slots and the plug-in parts are provided, and the plurality of the slots and the plurality of the plug-in parts are connected one-to-one, and the second direction intersects the third direction.

[0018] By adopting the above technical solution, multiple plug-in parts and multiple slots can form a staggered plug-in structure, thereby improving the connection stability between the electrical housing and the mounting base, while providing multiple protections along the first direction, further improving the protection ability of the connection between the wiring hole and the wiring base against solid particles and liquids.

[0019] In some embodiments of the present application, the first wall includes opposite inner wall surfaces and outer wall surfaces, the arrangement direction from the inner wall surface to the outer wall surface is a first direction, and along the first direction, the size of the slot is equal to the size of the plug-in portion.

[0020] By adopting the above technical solution, the size of the slot along the first direction is designed to be equal to the size of the plug-in part along the first direction, which not only enables the installation of the plug-in part and the slot, but also makes the two fit tightly together, thereby further improving the protection ability of the electrical housing against solid particles and liquids.

[0021] In some embodiments of the present application, the electrical housing includes a first sub-shell and a second sub-shell connected to each other, the first sub-shell is provided with a first sub-wall body, the second sub-shell is provided with a second sub-wall body, the first wall includes the first sub-wall body and the second sub-wall body, and the first sub-wall body and the second sub-wall body form the first connecting portion.

[0022] By adopting the above technical solution, the electrical appliance housing is designed to include a first sub-housing and a second sub-housing. The circuit board and the terminal block thereon can be first installed in the first sub-housing or the second sub-housing, and then the first sub-housing and the second sub-housing are connected to form a first wall, so as to facilitate the installation of the circuit board in the electrical appliance housing.

[0023] In some embodiments of the present application, a notch is provided on a side of the first sub-wall body facing the second sub-wall body, and the second sub-wall body is provided with a convex edge facing the notch, the convex edge is at least partially located in the notch, and together with the inner periphery of the notch, surrounds the wiring hole.

[0024] By adopting the above technical solution, the wiring hole is formed by utilizing the notch and the convex edge, and the structure is simple. Moreover, the wiring seat can be placed in the notch first, and then the first sub-shell and the second sub-shell are connected to form a wiring hole surrounding the wiring seat. In this way, the first connecting part of the wiring hole can form a split and step-by-step structure to realize an embedded connection with the second connecting part of the wiring seat, thereby improving the assembly efficiency of the wiring hole and the wiring seat.

[0025] In some embodiments of the present application, the inner periphery of the notch and the convex edge are configured as the first connecting portion.

[0026] By adopting the above technical solution, the notch and the convex edge can not only form a wiring hole, but also directly form a first connecting part, so that the inner periphery of the notch and the convex edge can be directly embedded and connected to the second connecting part of the connecting seat, which can play a role in simplifying the structure to a certain extent.

[0027] In some embodiments of the present application, there are multiple wiring holes and multiple wiring seats, and the multiple wiring holes and the multiple wiring seats are embedded and connected one by one.

[0028] By adopting the above technical solution, multiple wiring holes and multiple wiring sockets are embedded and connected one by one, which can improve the protection level of the entire electric control component against solid particles and liquids at the first wall.

[0029] In a second aspect, an embodiment of the present application provides an electrical device, including the above-mentioned battery device, and the battery device is used to provide electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. 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 the drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0032] Figure 2 A partial schematic diagram of a battery device provided in some embodiments of the present application;

[0033] Figure 3 A schematic diagram of the structure of an electric control component provided in some embodiments of the present application at a first viewing angle;

[0034] Figure 4 An exploded view of an electric control assembly provided in some embodiments of the present application;

[0035] Figure 5A schematic diagram of the structure of a wiring socket of an electric control component provided in some embodiments of the present application;

[0036] Figure 6 A schematic diagram of the structure of an electrical housing of an electrical control assembly provided in some embodiments of the present application;

[0037] Figure 7 A schematic diagram of the structure of an electric control component provided in some embodiments of the present application at a second viewing angle;

[0038] Figure 8 for Figure 7 AA cross-section diagram;

[0039] Fig. 9 for Figure 8 A magnified view of part a;

[0040] Fig.10 A schematic diagram of the matching between a plug-in portion and a slot of an electric control component provided in some embodiments of the present application;

[0041] Fig.11 A schematic diagram of another matching between a plug-in portion and a slot of an electric control component provided in some embodiments of the present application;

[0042] Fig.12 A schematic diagram of the cooperation between another plug-in portion and a slot of an electric control component provided in some embodiments of the present application.

[0043] The reference numerals of the specific embodiments are as follows:

[0044] 1000. Vehicles;

[0045] 100. Battery device;

[0046] 10. Box body; 11. First part; 12. Second part;

[0047] 20. Battery cells;

[0048] 30. Electric control assembly; 31. Electrical housing; 311. First wall; 3111. Wiring hole; 3112. First connection portion; 31121. First guide surface; 31122. Second guide surface; 3113. Inner wall surface; 3114. Outer wall surface; 312. First sub-housing; 3121. First sub-wall body; 31211. Notch; 31212. Inner periphery; 313. Second sub-housing; 3131. Second sub-wall body; 31311. Convex edge; 32. Circuit board; 321. Wiring socket; 3211. Second connection portion; 3212. Socket body; 32121. Socket; 3213. First frame; 3214. Second frame;

[0049] 200, controller;

[0050] 300, motor;

[0051] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application 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 drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0054] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places 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.

[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, H and / or B can represent: H exists alone, H and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0057] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0058] The term “plurality” used in this application refers to two or more (including two).

[0059] In the present application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, etc., and the embodiments of the present application do not limit this. The battery cell may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this.

[0060] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application may include a battery module or a battery pack. The battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0061] The battery cell mentioned in the embodiments of the present application may include an electrode assembly and an electrolyte, and the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive current collector and a positive active material layer, and the positive active material layer is coated on the surface of the positive current collector; the positive current collector includes a positive electrode coating area and a positive electrode ear connected to the positive electrode coating area, the positive electrode coating area is coated with a positive electrode active material layer, and the positive electrode ear is not coated with a positive electrode active material layer. Taking a lithium-ion battery cell as an example, the material of the positive current collector can be aluminum, and the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector includes a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area, and the negative electrode coating area is coated with a negative electrode active material layer, and the negative electrode tab is not coated with a negative electrode active material layer. The material of the negative electrode current collector can be copper, and the negative electrode active material layer includes a negative electrode active material, and the negative electrode active material can be carbon or silicon, etc. The material of the separator can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.

[0062] At present, the application of battery devices is becoming more and more extensive. Battery devices 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 battery devices, the market demand is also constantly expanding.

[0063] The battery device usually includes a box body and a battery cell and an electronic control component located in the box body. The box body is used to withstand external impact and pressure, protect the internal battery cells and electronic control components from physical damage, and reduce the risk caused by collision or falling. The electronic control component is used to connect the battery cells. The electronic control component can be a structure such as a BMU (battery management system) and a CSC (battery cell supervision circuit). It includes an electrical housing and a circuit board installed in the electrical housing. The electrical housing is provided with a wiring hole, and the circuit board is provided with a wiring seat installed in the wiring hole.

[0064] After assembly, there is an assembly gap between the wiring hole and the wiring seat, and solid particles or liquids can enter the electrical housing through the assembly gap, thereby affecting the circuit board in the electrical housing and affecting the service life of the electronic control component.

[0065] Therefore, how to reduce the possibility of solid particles or liquids entering the electrical housing through the above-mentioned assembly gap is an important issue in the research and development of battery cells and related components.

[0066] In view of this, the present application provides a technical solution, in which a first connecting part is provided on the circumference of the inner wall of the wiring hole, and a second connecting part is provided on the circumference of the outer wall of the wiring socket, and the first connecting part and the second connecting part are embedded in each other to improve the protection level of the electrical housing at the connection between the wiring hole and the wiring socket.

[0067] The battery cells described in the embodiments of the present application are suitable for batteries and electrical equipment using the batteries.

[0068] Electrical equipment may be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, electric tools, and the like. Vehicles may be fuel vehicles, gas vehicles, or new energy vehicles, and new energy vehicles may be pure electric vehicles, hybrid vehicles, or extended-range vehicles, and the like; spacecraft include airplanes, rockets, space shuttles, and spacecraft, and the like; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, and the like. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.

[0069] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0070] Combined with Figure 1 As shown, the vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is arranged inside the vehicle 1000, and the battery device 100 can be arranged at the bottom, head or tail of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000, for example, the battery device 100 can be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for the starting, navigation and driving power requirements of the vehicle 1000.

[0071] 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.

[0072] Combined with Figure 2-4 As shown, an embodiment of the present application provides a battery device 100, including a case 10, a battery cell 20 and an electronic control component 30, wherein the battery cell 20 and the electronic control component 30 are connected and both are installed in the case 10, wherein the electronic control component 30 includes an electrical housing 31 and a circuit board 32 installed in the electrical housing 31, the electrical housing 31 includes a first wall 311, the first wall 311 is provided with a wiring hole 3111, the hole wall of the wiring hole 3111 is provided with a first connecting portion 3112, the circuit board 32 is provided with a wiring seat 321 installed in the wiring hole 3111, the wiring seat 321 is provided with a second connecting portion 3211, and the first connecting portion 3112 is embeddedly connected with the second connecting portion 3211.

[0073] The box 10 is used to provide a storage space for the battery cell 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, and the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cell 20. Among them, the first part 11 and the second part 12 can both be hollow structures with one end open, and the second part 12 covers the open side of the first part 11, so that the first part 11 and the second part 12 jointly define a storage space; or the second part 12 can be a plate-like structure, the first part 11 is a hollow structure with one side open, and the open side of the second part 12 covers the open side of the first part 11. Of course, the box 10 formed by the first part 11 and the second part 12 can be a variety of shapes, such as a cylinder, a cuboid, etc.

[0074] Each battery cell 20 can be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can be cylindrical, flat, rectangular, or in other shapes.

[0075] There may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the multiple battery cells 20 may be first connected in series, in parallel, or in a mixed connection to form a battery module, and the multiple battery modules are then connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery device 100 may also include other structures. For example, the battery device 100 may also include a busbar component (not shown in the figure) for realizing electrical connection between the multiple battery cells 20.

[0076] The electronic control component 30 can be a battery management system (BMU) or a battery supervision circuit (CSC). The electronic control component 30 includes an electrical housing 31, a circuit board 32 and a control module. The circuit board 32 and the control module are both installed in the electrical housing 31. The control module is installed on the circuit board 32 and is electrically connected to the battery cell 20 through the circuit board 32. A terminal block 321 is installed on the circuit board 32. The terminal block 321 is used to insert a connecting wire to connect the battery cell 20 or an electrical device.

[0077] The first wall 311 can be the bottom wall, top wall or side wall shown in the figure of the electrical housing 31. The bottom wall refers to the wall located at the lower side when the battery housing is actually used in the electrical equipment. The top wall refers to the wall located at the upper side when the battery housing is actually used in the electrical equipment. The positions of the top wall and the bottom wall can be interchanged during transportation or assembly.

[0078] The first wall 311 is provided with a wiring hole 3111, which can be directly provided on the first wall 311, or the first wall 311 can be designed as a split structure as described below. The wiring hole 3111 is surrounded by two or more split structures, and a first connecting portion 3112 is provided on the hole wall of the wiring hole 3111.

[0079] A second connection portion 3211 is provided on the circumferential outer edge of the terminal socket 321, and the first connection portion 3112 is embeddedly connected with the second connection portion 3211. The embedded connection refers to that one part or at least part of the two components is embedded in the other. Specifically, the first connection portion 3112 can be embedded in the second connection portion 3211, or the second connection portion 3211 can be embedded in the first connection portion 3112. After the first connection portion 3112 is embeddedly connected with the second connection portion 3211, there can be no gap between the terminal socket 321 and the wiring hole 3111 in the direction perpendicular to the wall surface of the first wall 311 (first direction X), thereby reducing the possibility of solid particles and liquids entering the electrical housing 31 through the connection between the wiring hole 3111 and the terminal socket 321, and improving the protection level of the connection between the wiring hole 3111 and the terminal socket 321 against solid particles and liquids.

[0080] It should be noted that, in this embodiment, the circumferential direction of the wiring hole 3111 refers to the direction surrounding the shape enclosed by the wiring hole 3111, and the circumferential direction of the wiring seat 321 refers to the direction surrounding the outer contour of the wiring seat 321, and does not necessarily refer to the circumferential direction.

[0081] In some examples, optionally, the embedded connection includes a plug-in.

[0082] The first connection portion 3112 and the second connection portion 3211 are embedded in each other by plugging, which has a simple structure and is easy to process.

[0083] When the first connection part 3112 and the second connection part 3211 are matched by plugging, the electrical housing 31 can be designed as a split structure, and at least one of the first connection part 3112 and the second connection part 3211 can be designed as a split structure. A part of one of the first connection part 3112 and the second connection part 3211 can be plugged into the other first, and then the other part of one of the first connection part 3112 and the second connection part 3211 can be plugged into the other. Of course, the electrical housing 31 can also be an integrated structure, but a part of the electrical housing 31 can be processed first, and after the processed part of the electrical housing 31 is embedded with the terminal socket 321, the other part of the electrical housing 31 can be processed and embeddedly connected with the terminal socket 321.

[0084] In addition to plug-in, the embedded connection can also be achieved by embedding one of the first connection part 3112 and the second connection part 3211 into the other by heat pressing or bolting.

[0085] Plug-in is to directly insert one of the first connection part 3112 and the second connection part 3211 into the other, which has the characteristics of easy installation and easy processing. In addition, the plug-in method can also be specifically an interference connection, thereby improving the connection stability. Interference connection means that one of the first connection part 3112 and the second connection part 3211 is at least partially inserted into the other, and the size of the inserted one is larger than the other, and is tightly combined with the other. Compared with ordinary plug-in, interference connection has better connection stability and protection effect, but its installation and removal are more difficult than plug-in.

[0086] Combined with Figure 4-9 As shown, in some examples, optionally, the first connection portion 3112 is one of a slot and a plug-in portion, and the second connection portion 3211 is the other of the slot and the plug-in portion, and the slot and the plug-in portion are plug-fitted.

[0087] The above technical solution includes two implementations, one is that the first connection part 3112 is a slot and the second connection part 3211 is a plug-in part (this implementation is not shown in the figure), and the other is that the first connection part 3112 is a plug-in part and the second connection part 3211 is a slot. The slot and the plug-in part are plugged together, the structure is simple, and it is easy to disassemble and assemble.

[0088] Taking the first connection part 3112 as a plug-in part and the second connection part 3211 as a slot as an example, the plug-in part can be a plate-like structure or a sheet-like structure, and its specific shape is adapted to the outer contour of the wiring seat 321. The slot is a structure surrounding the outer contour of the wiring seat 321, and its width direction extends along the first direction X in the figure.

[0089] In the description of directions in this embodiment, the first direction X can be understood as the arrangement direction of the inner wall surface 3113 to the outer wall surface 3114, the second direction Y can be understood as the arrangement direction of the first sub-wall body 3121 to the second sub-wall body 3131 (or the first sub-shell 312 to the second sub-shell 313) described below, the second direction Y can be perpendicular to the first direction X, and the third direction Z is perpendicular to the first direction X and the second direction Y, respectively.

[0090] Combined with Fig.10 As shown, in some examples, optionally, the first connection part 3112 is a plug-in part, the second connection part 3211 is a slot, the first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, the first connection part 3112 is provided with a first guide surface 31121 connected to the inner wall surface 3113 and inclined, the first guide surface 31121 is used to cooperate with the slot guide, and / or the first connection part 3112 is provided with a second guide surface 31122 connected to the outer wall surface 3114 and inclined, the second guide surface 31122 is used to cooperate with the slot guide.

[0091] The inner wall surface 3113 refers to the surface of the first wall 311 located inside the electrical housing 31 , and the outer wall surface 3114 refers to the surface of the first wall 311 located outside the electrical housing 31 .

[0092] The first guide surface 31121 and the second guide surface 31122 refer to surfaces having a certain assembly guiding function. The first guide surface 31121 and the second guide surface 31122 may be inclined surfaces that are inclined relative to the first wall 311 as a whole, or may be curved surface structures.

[0093] The first connection part 3112 is designed as a plug-in part, the second connection part 3211 is designed as a slot, and the first guide surface 31121 and the second guide surface 31122 can be implemented in three ways. One is that the plug-in part is provided with the first guide surface 31121 on one side along the first direction X, and the second guide surface 31122 is not provided on the other side. Another is that the plug-in part is not provided with the first guide surface 31121 on one side along the first direction X, and the second guide surface 31122 is provided on the other side. Another is that Fig.10 The plug-in portion shown in the figure is provided with a first guide surface 31121 on one side along the first direction X, and a second guide surface 31122 on the other side.

[0094] The first guide surface 31121 and the inner wall surface 3113 may form an obtuse angle less than 180 degrees, and the second guide surface 31122 and the outer wall surface 3114 may form an obtuse angle less than 180 degrees. Fig. 9 The first connecting portion 3112 is not provided with a guide surface structure, and a first guiding surface 31121 and / or a second guiding surface 31122 is provided on the first connecting portion 3112. When the plug-in portion and the slot are inserted into each other, the first guiding surface 31121 or the second guiding surface 31122 cooperates with the slot to facilitate the insertion of the plug-in portion into the slot, thereby improving the insertion efficiency.

[0095] Combined with Figure 4 and attached Figure 5 As shown, in some examples, optionally, the first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is a first direction X. The terminal block 321 includes a seat body 3212 and a first frame 3213 and a second frame 3214 which are sleeved on the seat body 3212. The first frame 3213 and the second frame 3214 are spaced apart along the first direction X, and the first frame 3213, the second frame 3214 and the seat body 3212 form a slot surrounding the seat body 3212.

[0096] At this time, the first connecting part 3112 of this embodiment is the above-mentioned plug-in part, and the second connecting part 3211 is a slot. In order to facilitate the formation of the slot structure, this embodiment improves the structure of the wiring seat 321 and designs the wiring seat 321 to include a seat body 3212, a first frame 3213 and a second frame 3214.

[0097] The seat body 3212 is provided with a socket 32121 for wiring. The outer contour shape of the socket 32121 can be a rectangle as shown in the figure, or it can be a circle, a triangle or other shapes, which are not listed one by one in this embodiment. The first frame 3213 and the second frame 3214 are both arranged around the socket 32121, and their shapes can be similar to or the same as the shape of the socket 32121. For example, the first frame 3213 and the second frame 3214 in the figure are both rectangular.

[0098] The first frame 3213 and the second frame 3214 can be installed with the seat body 3212 before the transfer, and the connection method can be welding, bonding, clamping or other fixing methods.

[0099] Alternatively, during assembly, the first frame 3213 located in the electrical housing 31 is installed first, and then the second frame 3214 is installed. The distance between the first frame 3213 and the second frame 3214 in the first direction X can be adjusted so that the width of the slot formed by the second frame 3214 and the first frame 3213 can meet the plug-in requirements of the plug-in part of the electrical housing 31, and the first frame 3213 and the second frame 3214 can be pressed together to provide better protection performance.

[0100] Combined with Fig.11 and 12 As shown, in some examples, optionally, the first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is a first direction X. Along the first direction X, there are multiple slots and multiple plug-in parts, and the multiple slots and the multiple plug-in parts are connected one by one.

[0101] In some examples, optionally, the first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is a first direction X, and along a second direction Y or a third direction Z intersecting with the first direction X, there are multiple slots and multiple plug-in parts, and the multiple slots and the multiple plug-in parts are connected one by one, and the second direction Y intersects with the third direction Z.

[0102] The above technical solution includes multiple implementation methods, the first of which is as follows Fig.11 As shown in , the number of slots and plug-in parts along the first direction X is multiple, and the multiple slots or plug-in parts are connected one by one. The cross-sectional shape of the plug-in part can be as follows Fig. 9 The rectangle shown in the figure may also be a trapezoid having a first guide surface 31121 and a second guide surface 31122. Of course, it may also be other shapes, which are not listed one by one in this embodiment.

[0103] Taking the example of the plug-in part of the present embodiment being arranged at the wiring hole 3111 and the slot being formed by the first frame 3213 and the second frame 3214, when there are multiple plug-in parts, the thickness effect of the plug-in parts along the first direction X is correspondingly reduced, so that the overall thickness of the multiple plug-in parts is not greater than the thickness of the first wall 311 of the present embodiment.

[0104] Furthermore, the multiple slots may be configured by configuring multiple of the above-mentioned first frames 3213 and second frames 3214, or a groove structure may be directly set between the first frame 3213 and the second frame 3214, or a groove structure may be directly set on the first frame 3213 and the second frame 3214. All of the above methods can realize the design of multiple grooves along the first direction X.

[0105] The second is Fig.12 As shown, in the second direction Y and / or the third direction Z intersecting the first direction X, there are multiple slots and multiple plug-in parts, and the multiple slots or plug-in parts are connected one by one.

[0106] In some embodiments, the second direction Y and the third direction Z are both perpendicular to the first direction X, and the second direction Y is perpendicular to the third direction Z, and the second direction Y is the arrangement direction of the first sub-wall 3121 to the second sub-wall 3131 (or the first sub-shell 312 to the second sub-shell 313) described below.

[0107] The above two embodiments both have multiple plug-in parts and multiple slots, so that the multiple plug-in parts and the multiple slots can form a plug-in structure in a staggered form, thereby improving the connection stability between the electrical housing 31 and the mounting seat, and at the same time providing multiple protections along the first direction X, further improving the protection capability of the connection between the wiring hole 3111 and the wiring seat 321 against solid particles and liquids.

[0108] Combined with the attachment again Fig. 9 As shown, in some examples, optionally, the first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is a first direction X, and along the first direction X, the size of the slot is equal to the size of the plug-in portion.

[0109] Along the first direction X, the size of the slot is its own width, and the size of the plug-in part is its own thickness. The width of the slot is equal to the thickness of the plug-in part, so that the two can form a seamless structure after being plugged in, thereby reducing the entry of solid particles and liquids into the gap between the slot and the plug-in part, thereby further improving the protection ability of the electrical housing 31 against solid particles and liquids.

[0110] Of course, the width of the slot can also be designed to be larger than the thickness of the plug-in part, so as to facilitate the plug-in of the two, but this structure will reduce the protection ability of the electrical housing 31 against solid particles and liquids. In addition, the width of the slot can also be designed to be smaller than the thickness of the plug-in part, and this structure allows the slot and the plug-in part to form the above-mentioned interference connection.

[0111] Combined with the attachment again Figure 4 As shown, in some examples, optionally, the electrical housing 31 includes a first sub-shell 312 and a second sub-shell 313 connected to each other, the first sub-shell 312 is provided with a first sub-wall body 3121, the second sub-shell 313 is provided with a second sub-wall body 3131, the first wall 311 includes a first sub-wall body 3121 and a second sub-wall body 3131, and the first sub-wall body 3121 and the second sub-wall body 3131 surround a first connecting portion 3112.

[0112] The first sub-wall body 3121 and the second sub-wall body 3131 form the first wall 311 of this embodiment after docking. It can be understood that a part of the first wall 311 is the first sub-wall body 3121 of the first sub-shell 312, and the other part of the first wall 311 is the second sub-wall body 3131 of the second sub-shell 313.

[0113] The first sub-shell 312 and the second sub-shell 313 form a receiving cavity, and the circuit board 32 of the electric control component 30 , the electric control module mounted on the circuit board 32 , and the wiring seat 321 are received in the receiving cavity.

[0114] In some embodiments, the first sub-shell 312 can be a top cover, and the second sub-shell 313 can be a bottom shell, and the two can be connected by bolting, welding or clamping. The second sub-shell 313 can be used to connect the entire electrical shell 31 to the box body 10, so a plurality of reinforcing ribs can be provided on the side of the second sub-shell 313 facing away from the first sub-shell 312.

[0115] The electrical housing 31 is designed to include a first sub-housing 312 and a second sub-housing 313. The circuit board 32 and the terminal socket 321 thereon can be first installed in the first sub-housing 312 or the second sub-housing 313, and then the first sub-housing 312 and the second sub-housing 313 are connected to form a first wall 311, so as to facilitate the installation of the circuit board 32 in the electrical housing 31.

[0116] Combined with Figure 4-6As shown, in some examples, optionally, a notch 31211 is provided on the side of the first sub-wall body 3121 facing the second sub-wall body 3131, and the second sub-wall body 3131 is provided with a convex edge 31311 facing the notch 31211, and the convex edge 31311 is at least partially located in the notch 31211, and together with the inner periphery 31212 of the notch 31211, surrounds the wiring hole 3111.

[0117] The notch 31211 is a structure that is open along the first direction X and open along one side of the second direction Y perpendicular to the first direction X. The number of notches 31211 corresponds one-to-one to the number of wiring holes 3111. For example, when the number of wiring holes 3111 is three as shown in the figure, the number of notches 31211 is also three.

[0118] Similarly, the number of the convex edges 31311 corresponds to the number of the notches 31211, and the multiple convex edges 31311 cooperate with the multiple notches 31211 to form a plurality of wiring holes 3111. The wiring holes 3111 are formed by using the notches 31211 and the convex edges 31311, and the structure is simple.

[0119] During assembly, the wiring seat 321 can be first placed in the notch 31211 or on the convex edge 31311, and then the first sub-shell 312 and the second sub-shell 313 are connected, so that the notch 31211 and the convex edge 31311 form a wiring hole 3111 surrounding the wiring seat 321. In this way, the first connecting portion 3112 of the wiring hole 3111 can form a split structure that can be installed in steps, thereby facilitating the embedded connection (such as plug-in) between the first connecting portion 3112 and the second connecting portion 3211, thereby improving the assembly efficiency of the wiring hole 3111 and the wiring seat 321.

[0120] In some examples, optionally, the inner periphery 31212 of the notch 31211 and the convex edge 31311 are configured as the first connecting portion 3112 .

[0121] The inner edge 31212 of the notch 31211 forms a plug-in structure that is approximately door-shaped, and the convex edge 31311 is a straight-line plug-in. The notch 31211 and the convex edge 31311 can form a closed plug-in portion when combined. Accordingly, the first frame 3213 and the second frame 3214 mentioned above can be used to form a slot on the terminal block 321.

[0122] During assembly, the slot can be first plugged into one of the convex edge 31311 and the notch 31211, and then the first sub-shell 312 and the second sub-shell 313 can be connected so that the slot can be plugged into the other of the convex edge 31311 and the notch 31211, thereby achieving the plug-in connection between the slot and the plug-in part.

[0123] The notch 31211 and the convex edge 31311 can not only enclose the wiring hole 3111, but also directly enclose the first connecting portion 3112, so that the inner circumference 31212 of the notch 31211 and the convex edge 31311 can be directly embedded and connected to the second connecting portion 3211 of the connecting seat, which can play a role in simplifying the structure to a certain extent.

[0124] In some examples, optionally, there are multiple wiring holes 3111 and multiple wiring sockets 321, and the multiple wiring holes 3111 and the multiple wiring sockets 321 are embedded and connected one by one.

[0125] The number of wiring holes 3111 and wiring sockets 321 corresponds one to one, for example, there are three wiring holes 3111 and three wiring sockets 321 in the figure. This embodiment only describes the wiring sockets 321 and wiring holes 3111 on one side. The multiple wiring holes 3111 and the multiple wiring sockets 321 are all arranged at intervals along the third direction Z in the figure.

[0126] One of the plurality of wiring sockets 321 can be used to connect the battery cell 20 , and the remaining wiring sockets 321 can be used to connect other electric control components 30 and electrical equipment, which will not be described in detail in this embodiment.

[0127] By embedding and connecting the plurality of wiring holes 3111 and the plurality of wiring sockets 321 one by one, the protection level of the entire electric control component 30 against solid particles and liquids at the first wall 311 can be improved.

[0128] Finally, please see the attached Figure 2-12As shown, the embodiment of the present application provides a battery device 100, including a box body 10, a battery cell 20 and an electric control component 30, wherein the battery cell 20 and the electric control component 30 are connected and both are installed in the box body 10, wherein the electric control component 30 includes an electrical housing 31 and a circuit board 32 installed in the electrical housing 31, the electrical housing 31 includes a first wall 311, the first wall 311 is provided with a wiring hole 3111, the hole wall of the wiring hole 3111 is provided with a first connecting portion 3112, the circuit board 32 is provided with a wiring seat 321 installed in the wiring hole 3111, the wiring seat 321 is provided with a second connecting portion 3211 facing the circumferential outer edge of the wiring hole 3111, and the first connecting portion 3112 is embeddedly connected with the second connecting portion 3211. The embedded connection includes plug-in. The first connecting portion 3112 is one of a slot and a plug-in portion, and the second connecting portion 3211 is the other of the slot and the plug-in portion, and the slot and the plug-in portion are plug-fitted. The first connection part 3112 includes a plug-in part, the second connection part 3211 is a slot, the first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, the first connection part 3112 is provided with a first guide surface 31121 connected with the inner wall surface 3113 and inclined, the first guide surface 31121 is used to cooperate with the slot guide, and / or the first connection part 3112 is provided with a second guide surface 31122 connected with the outer wall surface 3114 and inclined, the second guide surface 31122 is used to cooperate with the slot guide. The first wall 311 includes an inner wall surface 3113 and an outer wall surface 3114 opposite to each other, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is the first direction X. The wiring seat 321 includes a seat body 3212 and a first frame 3213 and a second frame 3214 sleeved on the seat body 3212. The first frame 3213 and the second frame 3214 are arranged at intervals along the first direction X. The first frame 3213, the second frame 3214 and the seat body 3212 form a slot surrounding the seat body 3212. The first wall 311 includes an inner wall surface 3113 and an outer wall surface 3114 opposite to each other, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is the first direction X. Along the first direction X, there are multiple slots and multiple plug-in parts, and the multiple slots and the multiple plug-in parts are connected one by one. The first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is the first direction X. Along the second direction Y or the third direction Z intersecting the first direction X, there are multiple slots and multiple plug-in parts, and the multiple slots and the multiple plug-in parts are connected in a one-to-one correspondence. The first wall 311 includes opposite inner wall surfaces 3113 and outer wall surfaces 3114, and the arrangement direction from the inner wall surface 3113 to the outer wall surface 3114 is the first direction X. Along the first direction X, the size of the slot is equal to the size of the plug-in part.The electrical housing 31 includes a first sub-housing 312 and a second sub-housing 313 connected to each other. The first sub-housing 312 is provided with a first sub-wall 3121, and the second sub-housing 313 is provided with a second sub-wall 3131. The first wall 311 includes a first sub-wall 3121 and a second sub-wall 3131, and the first sub-wall 3121 and the second sub-wall 3131 form a first connecting portion 3112. A notch 31211 is provided on the side of the first sub-wall 3121 facing the second sub-wall 3131, and a convex edge 31311 facing the notch 31211 is provided on the second sub-wall 3131. The convex edge 31311 is at least partially located in the notch 31211, and the convex edge 31311 and the inner peripheral edge 31212 of the notch 31211 surround the wiring hole 3111. The inner peripheral edge 31212 of the notch 31211 and the convex edge 31311 are set as the first connecting portion 3112. There are multiple wiring holes 3111 and wiring seats 321, and the multiple wiring holes 3111 and the multiple wiring seats 321 are embedded and connected one by one.

[0129] Based on the above-mentioned battery device 100 , the embodiment of the present application further provides an electric device, including the above-mentioned battery device 100 , the battery device 100 is used to provide electric energy to the electric device, and the electric device may be a vehicle 1000 .

[0130] 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 it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for the intermediate technical features, but these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery device, characterized in that: It includes a box, a battery cell and an electronic control component, wherein the battery cell and the electronic control component are connected and installed in the box. Among them, the electric control component includes an electrical housing and a circuit board installed in the electrical housing, the electrical housing includes a first wall, the first wall is provided with a wiring hole, the hole wall of the wiring hole is provided with a first connecting part, the circuit board is provided with a wiring seat installed in the wiring hole, the wiring seat is provided with a second connecting part, and the first connecting part is embedded in the second connecting part.

2. The battery device according to claim 1, characterized in that: The embedded connection includes a plug-in connection.

3. The battery device according to claim 2, characterized in that: The first connection portion is one of a slot and an inserting portion, the second connection portion is the other of the slot and the inserting portion, and the slot and the inserting portion are plug-fitted.

4. The battery device according to claim 3, characterized in that: The first connecting part is the plug-in part, the second connecting part is a slot, the first wall includes opposite inner wall surfaces and outer wall surfaces, the first connecting part is provided with a first guide surface connected with the inner wall surface and inclined, the first guide surface is used for guiding cooperation with the slot, and / or the first connecting part is provided with a second guide surface connected with the outer wall surface and inclined, the second guide surface is used for guiding cooperation with the slot.

5. The battery device according to claim 3, characterized in that: The first wall includes opposite inner wall surfaces and outer wall surfaces, and the arrangement direction from the inner wall surface to the outer wall surface is a first direction. The wiring seat includes a seat body and a first frame and a second frame sleeved on the seat body. The first frame and the second frame are arranged at intervals along the first direction, and the first frame, the second frame and the seat body form the slot arranged around the seat body.

6. The battery device according to claim 3, characterized in that: The first wall includes opposite inner wall surfaces and outer wall surfaces, and the arrangement direction from the inner wall surface to the outer wall surface is a first direction. Along the first direction, there are multiple slots and multiple plug-in parts, and the multiple slots and the multiple plug-in parts are connected one-to-one.

7. The battery device according to claim 3, characterized in that: The first wall includes opposite inner wall surfaces and outer wall surfaces, and the arrangement direction from the inner wall surface to the outer wall surface is a first direction. Along a second direction or a third direction intersecting with the first direction, there are multiple slots and multiple plug-in parts, and the multiple slots and the multiple plug-in parts are connected one by one, and the second direction intersects with the third direction.

8. The battery device according to claim 3, characterized in that: The first wall includes an inner wall surface and an outer wall surface opposite to each other. The arrangement direction from the inner wall surface to the outer wall surface is a first direction. Along the first direction, the size of the slot is equal to the size of the plug-in portion.

9. The battery device according to any one of claims 1 to 8, characterized in that: The electrical housing includes a first sub-shell and a second sub-shell connected to each other, the first sub-shell is provided with a first sub-wall body, the second sub-shell is provided with a second sub-wall body, the first wall includes the first sub-wall body and the second sub-wall body, and the first sub-wall body and the second sub-wall body form the first connecting portion.

10. The battery device according to claim 9, characterized in that: A notch is provided on a side of the first sub-wall body facing the second sub-wall body, and the second sub-wall body is provided with a convex edge facing the notch. The convex edge is at least partially located in the notch and surrounds the wiring hole with the inner periphery of the notch.

11. The battery device according to claim 10, characterized in that: The inner periphery of the notch and the convex edge are configured as the first connecting portion.

12. The battery device according to any one of claims 1 to 8, characterized in that: There are multiple wiring holes and wiring seats, and the multiple wiring holes and the multiple wiring seats are embedded and connected one by one.

13. An electrical equipment, characterized in that: The invention comprises a battery device as claimed in any one of claims 1 to 12, wherein the battery device is used to provide electrical energy.

Images