High-voltage box, battery and electric device

Abstract

The invention discloses a high-voltage box, a battery and an electric device, and the high-voltage box comprises a first housing which is provided with a wall part and an accommodation space enclosed by the wall part, and the accommodation space is used for accommodating an electric device; the electric connecting piece is arranged on the first shell, the electric connecting piece comprises a plurality of terminals and a conductive connecting part, the conductive connecting part is connected to at least one terminal, the conductive connecting part and the terminal are integrally formed, and the terminal is used for being connected with an electric device. The assembly process of the high-voltage box can be simplified, the assembly efficiency of the high-voltage box is improved, and the assembly rate of the battery is further improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage, and in particular to a high-voltage box, a battery and an electrical device. Background Art

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

[0003] With the development of new energy vehicles, higher requirements are placed on the difficulty of battery assembly. Summary of the invention

[0004] In view of the above problems, the present application provides a high-voltage box, a battery and an electrical device, which can increase the assembly rate of the battery.

[0005] In a first aspect, the present application provides a high-voltage box for a battery, the high-voltage box comprising: a first shell having a wall portion and a accommodating space formed by the wall portion, the accommodating space being used to accommodate electrical devices; an electrical connector arranged in the first shell, the electrical connector comprising a plurality of terminals and a conductive connecting portion, the conductive connecting portion being connected to at least one terminal and being integrally formed with the terminal, the terminal being used to connect the electrical devices.

[0006] In the technical solution of the embodiment of the present application, the high-voltage box includes a first shell and an electrical connector, and the wall of the first shell encloses a storage space so that the electrical device can be arranged in the storage space. The electrical connector includes a terminal and a conductive connection part, the terminal is used to connect the electrical device, the conductive connection part is connected to at least one terminal, and the conductive connection part and the terminal are integrally formed, and there is no need to connect the conductive connection part and the terminal twice in the high-voltage box, which can simplify the assembly process of the high-voltage box, improve the assembly efficiency of the high-voltage box, and thus improve the assembly rate of the battery.

[0007] In some embodiments, the terminal includes a main body portion and a claw portion that are integrally connected, the main body portion encloses a hollow area, and the claw portion is connected to an edge of the hollow area and rises along the thickness direction of the main body portion.

[0008] In these embodiments, the terminal includes a main body and a claw portion, a hollow area is provided on the main body, and the claw portion is connected to the peripheral side of the hollow area, so that the claw portion can be formed by stamping a plate, and the claw portion is tilted relative to the main body, thereby facilitating the connection between the claw portion and the connecting part of the electrical device.

[0009] In some embodiments, the wall portion includes a connecting hole that is arranged through the wall portion, and the claw portion and the connecting hole are arranged correspondingly, so that the claw portion can be connected to the electrical device via the connecting hole.

[0010] In these embodiments, a connecting hole is provided on the wall portion, so that the connecting portion of the electrical component can extend into the connecting hole and connect with the claw portion.

[0011] In some embodiments, the claw portion includes more than two cards, each card is connected to at least one side of the circumference of the hollow area, and at least two cards are arranged on both sides of the hollow area and extend in a direction approaching each other, so that the connecting portion of the electrical device can be clamped between the two cards.

[0012] In these embodiments, the claw portion includes a plurality of cards, and at least two cards are disposed oppositely on both sides of the hollow region and extend in a direction approaching each other, and the elastic force of the two cards can form an interference fit between the card and the connecting portion of the electrical device, so that the connecting portion can be clamped between the two cards. This can simplify the connection method between the electrical device and the claw portion, and can also ensure the stability of the electrical connection.

[0013] In some embodiments, the body portion is injection molded inside the wall portion, and the claw portion extends out of the surface of the wall portion.

[0014] In these embodiments, the main body is injection molded into the wall, so that the wall can provide protection for the main body and reduce the scratches of other parts on the main body, and the claw extends out of the surface of the wall to facilitate electrical connection with the connecting part of the electrical device. In addition, the main body is injection molded into the wall to ensure the stability of the position of the main body, and when the connecting part is clamped to the claw, the instability of the claw position that affects the stability of the electrical connection is reduced.

[0015] In some embodiments, the conductive connection portion is injection molded into the wall portion.

[0016] In these embodiments, the wall portion can provide protection for the conductive connecting portion, thereby preventing the conductive connecting portion from being suspended in the accommodating space and affecting the installation of other components.

[0017] In some embodiments, the electrical connector further includes a plug-in end, at least one conductive connection portion is connected between the terminal and the plug-in end, and the interconnected conductive connection portion, the terminal and the plug-in end are integrally formed.

[0018] In these embodiments, some terminals are electrically connected to the outside through plug-in ends, so the other ends of some conductive connecting parts are connected to the plug-in ends. The conductive connecting parts, terminals and plug-in ends that are interconnected are integrally formed, which can further simplify the structure of the electrical connector. There is no need to assemble the conductive connecting parts and the plug-in ends in the high-voltage box, which can simplify the assembly process of the high-voltage box, improve the assembly efficiency of the high-voltage box, and thereby increase the assembly rate of the battery.

[0019] In some embodiments, it also includes a plug interface, the plug end is plugged into the plug interface, and the plug interface is injection molded on the wall.

[0020] In these embodiments, the plug interface for accommodating the plug end is injection molded on the wall portion, and the plug interface and the first shell do not need to be assembled in the high-voltage box, which can simplify the assembly process of the high-voltage box, improve the assembly efficiency of the high-voltage box, and thus increase the assembly rate of the battery.

[0021] In some embodiments, the wall portion includes a top wall and side walls connected to the periphery of the top wall, the top wall and the side walls enclose a receiving space, and the electrical connector is disposed on the top wall.

[0022] In these embodiments, the electrical connector is disposed on the top wall to facilitate electrical connection between the terminals of the electrical connector and electrical devices at different positions in the accommodating space.

[0023] In some embodiments, a first snap-on portion is provided on the side wall; the high-voltage box also includes a second shell, the second shell is provided on the side of the side wall away from the top wall, and a second snap-on portion is provided on the second shell, and the first shell and the second shell are snap-connected to each other through the first snap-on portion and the second snap-on portion.

[0024] In these embodiments, the first shell and the second shell are snap-connected to each other through the first snap-on portion and the second snap-on portion, which can simplify the assembly process of the first shell and the second shell, improve the assembly efficiency of the high-voltage box, and ensure the stability of the relative position between the first shell and the second shell.

[0025] In a second aspect, an embodiment of the present application further provides a battery, comprising any high-voltage box according to the first aspect.

[0026] In a third aspect, an embodiment of the present application further provides an electrical device, comprising a battery according to any one of the first aspects, wherein the battery is used to provide electrical energy.

[0027] 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

[0028] 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. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 is a structural schematic diagram of a vehicle provided by an embodiment of the present application;

[0030] Figure 2 is a schematic diagram of the structure of a battery provided in one embodiment of the present application;

[0031] Figure 3 This is a schematic diagram of an exploded structure of a high-voltage box provided in one embodiment of the present application;

[0032] Figure 4 is an axonometric diagram of a high-voltage box provided in one embodiment of the present application;

[0033] Figure 5 is a top view of a high-voltage box provided in one embodiment of the present application;

[0034] Figure 6 is a top view of a high-voltage box provided in another embodiment of the present application;

[0035] Figure 7 yes Figure 6 Top view at AA in the middle.

[0036] The reference numerals in the specific implementation manner are as follows:

[0037] 1. Vehicle; 10. Battery; 11. Controller; 12. Motor; 20. Battery cell; 30. Housing; 301. Upper cover; 302. Lower housing; 40. High-voltage box; 401. Bottom housing; 4021. First upper housing; 4022. Second upper housing; 50. Electrical components; 51. Connecting part;

[0038] 100, first housing; 110, wall portion; 110a, top wall; 120a, side wall; 111, connecting hole; 120, accommodating space; 130, first buckle portion;

[0039] 200, electrical connector; 210, terminal; 211, main body; 212, claw; 212a, card; 213, hollow area; 220, conductive connection; 230, plug-in terminal;

[0040] 300, plug interface;

[0041] 400, second housing; 410, second buckle portion;

[0042] X, first direction; Y, second direction; Z, thickness direction. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present application will be 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.

[0044] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0045] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number 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.

[0047] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] 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.

[0050] In the present application, battery cells may include lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-ion battery cells, etc., which are not limited in the embodiments of the present application.

[0051] 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 shell for encapsulating one or more battery cells. The shell can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0052] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. A battery cell mainly works by the movement of metal ions between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. The positive current collector includes a positive current collector and a positive electrode ear connected to the positive current collector. The positive current collector is coated with a positive active material layer, and the positive electrode ear is not coated with a positive active material layer. Taking a lithium-ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material layer includes a positive active material. The positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative current collector and a negative active material layer, the negative active material layer is coated on the surface of the negative current collector; the negative current collector includes a negative current collector and a negative electrode tab connected to the negative current collector, the negative current collector is coated with the negative active material layer, and the negative electrode tab is not coated with the negative active material layer. The material of the negative current collector can be copper, the negative active material layer includes a negative active material, and the negative active material can be carbon or silicon, etc. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc.

[0053] A high-voltage box will be set up inside the battery. The high-voltage box is used to install high-voltage electrical devices such as relays. These electrical devices need to be controlled and sampled in real time. Both control and sampling require the use of terminal crimping harnesses to connect the various electrical devices together. These are then placed in the high-voltage box for component installation. The assembly process is complicated, time-consuming and labor-intensive.

[0054] In order to alleviate the above technical problems, the terminals and wiring harnesses can be formed in one piece, eliminating the need to assemble the connecting terminals and wiring harnesses in the high-voltage box, thereby improving the assembly efficiency of the high-voltage box and saving assembly time of the high-voltage box.

[0055] The technical solutions described in the embodiments of the present application are applicable to batteries and electrical devices using batteries.

[0056] The electrical device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle 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, and the like; the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, and the like; the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like; the electric tool may include a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, and the like. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0057] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the batteries and electrical devices described above, but can also be applied to all batteries including a shell and electrical devices using batteries. However, for the sake of simplicity, the following embodiments are explained using electric vehicles as an example.

[0058] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1 provided for some embodiments of the present application. The vehicle 1 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 10 is provided inside the vehicle 1, and the battery 10 may be provided at the bottom, the head or the tail of the vehicle 1. The battery 10 may be used to power the vehicle 1, for example, the battery 10 may be used as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 11 and a motor 12, and the controller 11 is used to control the battery 10 to power the motor 12, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving.

[0059] In some embodiments of the present application, the battery 10 can be used not only as an operating power source for the vehicle 1 , but also as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0060] In order to meet different power requirements, the battery 10 may include a plurality of battery cells, which refers to the smallest unit that constitutes a battery module or a battery pack. A plurality of battery cells can be connected in series and / or in parallel via electrode terminals for use in various applications. The battery mentioned in the present application includes a battery module or a battery pack. Among them, a plurality of battery cells can be connected in series, in parallel, or in mixed connection, and mixed connection refers to a mixture of series and parallel connection. In the embodiments of the present application, a plurality of battery cells can directly constitute a battery pack, or they can first constitute a battery module, and then the battery module constitutes a battery pack.

[0061] Figure 2A schematic structural diagram of a battery 10 according to an embodiment of the present application is shown.

[0062] like Figure 2 As shown, the battery 10 includes a housing 30 and a battery cell located in the housing 30. The housing 30 can be a simple three-dimensional structure such as a single cuboid, cylinder or sphere, or a complex three-dimensional structure composed of simple three-dimensional structures such as cuboids, cylinders or spheres, which is not limited in the present embodiment. The material of the housing 30 can be an alloy material such as aluminum alloy, iron alloy, etc., or a polymer material such as polycarbonate, polyisocyanurate foam plastic, or a composite material such as glass fiber plus epoxy resin, which is not limited in the present embodiment.

[0063] The shell 30 is used to accommodate the battery cell, and the shell 30 can be a variety of structures. In some embodiments, the shell 30 may include an upper cover 301 and a shell body 302, and the upper cover 301 and the shell body 302 cover each other, and the upper cover 301 and the shell body 302 jointly define a storage space 330 for accommodating the battery cell. The first shell portion 30 can be a hollow structure with one end open, and the shell body 302 is a plate-like structure, and the shell body 302 covers the open side of the upper cover 301 to form a shell 30 with a storage space 330. The upper cover 301 and the shell body 302 can also be hollow structures with one side open, and the open side of the upper cover 301 covers the open side of the shell body 302 to form a shell 30 with a storage space 330. Of course, the upper cover 301 and the shell body 302 can be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0064] In order to improve the sealing performance after the upper cover 301 and the shell body 302 are connected, a sealing member, such as a sealant, a sealing ring, etc., may also be provided between the upper cover 301 and the shell body 302 .

[0065] Assuming that the upper cover 301 covers the top of the shell body 302, the upper cover 301 can also be called an upper shell body, and the shell body 302 can also be called a lower shell body.

[0066] Optionally, multiple battery cells 20 can be connected in series, in parallel, or in hybrid connection. Hybrid connection means that multiple battery cells 20 are both connected in series and in parallel. Multiple battery cells 20 can be directly connected in series, in parallel, or in hybrid connection, and then the whole formed by multiple battery cells 20 is accommodated in the housing 30; of course, multiple battery cells 20 can also be connected in series, in parallel, or in hybrid connection to form a battery unit, and then multiple battery units are connected in series, in parallel, or in hybrid connection to form a whole, and then accommodated in the housing 30.

[0067] Optionally, the battery cell 20 also includes a shell, which can be used to accommodate an electrode assembly, an electrolyte (not shown in the figure) and other components. The battery cell 20 may also include an end cap covered at the opening of the shell. The shell and the end cap may be independent components, and an opening may be provided on the shell, and the internal environment of the battery cell 20 is formed by covering the opening with the end cap at the opening. Without limitation, the end cap and the shell may be integrated. Specifically, the end cap and the shell may form a common connection surface before other components enter the shell, and when the interior of the shell needs to be encapsulated, the end cap is covered with the shell. The shell may be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell may be determined according to the specific shape and size of the electrode assembly. The shell may be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose any special restrictions on this.

[0068] In the present application, the battery cell 20 may include a lithium-ion battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, etc., and the embodiments of the present application are not limited to this. The battery cell 20 may be cylindrical, or in other shapes, etc. However, for the sake of simplicity, the following embodiments are all described by taking a square battery cell as an example. A square battery cell refers to a battery cell having a quadrangular prism shape.

[0069] Please also read Figure 3 and Figure 4 A high voltage box 40 is also provided in the housing, and the high voltage box 40 is used to set a high voltage electrical device 50 such as a relay. The high voltage box 40 can be provided in the housing 30, or the high voltage box 40 is provided outside the housing 30.

[0070] like Figure 3 and Figure 4 As shown, the high-voltage box 40 includes a first shell 100 and an electrical connector 200. The first shell 100 has a wall portion 110 and a accommodating space 120 enclosed by the wall portion 110. The accommodating space 120 is used to accommodate the electrical device 50. The electrical connector 200 is arranged in the first shell 100. The electrical connector 200 includes a plurality of terminals 210 and a conductive connecting portion 220. The conductive connecting portion 220 is connected to at least one terminal 210 and is integrally formed with the terminal 210. The terminal 210 is used to connect the electrical device 50.

[0071] In the technical solution of the embodiment of the present application, the high-voltage box 40 includes a first shell 100 and an electrical connector 200. The wall portion 110 of the first shell 100 encloses a receiving space 120, so that the electrical device 50 can be arranged in the receiving space 120. The electrical connector 200 includes a terminal 210 and a conductive connecting portion 220. The terminal 210 is used to connect the electrical device 50. The conductive connecting portion 220 is connected to at least one terminal 210, and the conductive connecting portion 220 and the terminal 210 are integrally formed. There is no need to connect the conductive connecting portion 220 and the terminal 210 twice in the high-voltage box 40, which can simplify the assembly process of the high-voltage box 40, improve the assembly efficiency of the high-voltage box 40, and thus improve the assembly rate of the battery.

[0072] There are many ways to set the high-voltage box 40. For example, the high-voltage box 40 includes an upper shell and a bottom shell 401 that are connected to each other, and the first shell 100 can be the upper shell of the high-voltage box 40. The high-voltage box 40 can also be a double-layer top cover, that is, the high-voltage box 40 includes two upper shells stacked, the two upper shells are respectively a first upper shell 4021 and a second upper shell 4022, and the first upper shell 4021 is located between the second upper shell 4022 and the bottom shell 401. The first shell 100 can be the first upper shell 4021, so that the second upper shell 4022 can provide protection for the electrical connector 200 arranged on the first upper shell 4021.

[0073] The terminal 210 of the electrical connector 200 is used to connect the electrical device 50, and the conductive connecting part 220 of the electrical connector 200 is equivalent to the above-mentioned wiring harness. The conductive connecting part 220 and the terminal 210 are integrally formed, and there is no need to connect the terminal 210 and the conductive connecting part 220 during the assembly process of the high-voltage box 40. The terminal 210 and the conductive connecting part 220 can be prepared by stamping, cutting and other processes of conductive sheets. Optionally, the electrical connector 200 may include a plurality of conductive connecting parts 220, and the plurality of conductive connecting parts 220 are used to connect different terminals 210. After the plurality of conductive connecting parts 220 and the terminal 210 are prepared at the same time using the same conductive sheet, they can be cut so that the plurality of conductive connecting parts 220 and the plurality of terminals 210 are separated from each other to avoid short-circuit connection of the plurality of terminals 210.

[0074] Optionally, the conductive connection part 220 can be connected between two terminals 210, so that two electrical devices 50 connected to the terminals 210 can be electrically connected to each other through the conductive connection part 220. Optionally, one end of the conductive connection part 220 is connected to the terminal 210, and the other end of the conductive connection part 220 can be connected to a connector such as a plug connector, so that the electrical device 50 connected to the terminal 210 can be electrically connected to an external device through the conductive connection part 220 and the plug.

[0075] Optionally, the terminal 210 and the electrical device 50 in the accommodating space 120 correspond in position, and the conductive connecting portion 220 extends along a bending path, so that the position of the terminal 210 can be set more freely.

[0076] Optionally, "integrated molding" means that the two can be processed and formed using the same plate material, for example, the conductive connection part 220 and the terminal 210 can be processed and formed using the same conductive plate material, which can improve the connection strength between the conductive connection part 220 and the terminal 210, and because the conductive connection part 220 and the terminal 210 themselves are interconnected, there is no need to connect the conductive connection part 220 and the terminal 210 to each other.

[0077] In some embodiments, the terminal 210 includes a main body portion 211 and a claw portion 212 that are integrally connected, the main body portion 211 encloses a hollow area 213 , the claw portion 212 is connected to the edge of the hollow area 213 and is tilted along the thickness direction Z of the main body portion 211 .

[0078] In these embodiments, the terminal 210 includes a main body portion 211 and a claw portion 212. A hollow area 213 is provided on the main body portion 211. The claw portion 212 is connected to the peripheral side of the hollow area 213, so that the claw portion 212 can be formed by stamping a plate. The claw portion 212 is tilted relative to the main body portion 211, which facilitates the connection between the claw portion 212 and the connecting portion 51 of the electrical device 50.

[0079] Optionally, the body 211 and the conductive connection part 220 are integrally formed, and the claw part 212 is integrally formed with the body 211. The claw part 212 is connected to the edge of the hollow area 213, and the shape of the claw part 212 is adapted to the shape of the hollow area 213, or the area of ​​the claw part 212 is smaller than the area of ​​the hollow area 213, so that the hollow area 213 and the claw part 212 can be formed by cutting, stamping, grinding, etc. on the body 211.

[0080] In some embodiments, the wall portion 110 includes a connecting hole 111 extending therethrough, and the claw portion 212 and the connecting hole 111 are correspondingly arranged so that the claw portion 212 can be connected to the electrical device 50 via the connecting hole 111 .

[0081] In these embodiments, a connection hole 111 is provided on the wall portion 110 , so that the connection portion 51 of the electrical device 50 can extend into the connection hole 111 and connect with the claw portion 212 .

[0082] Optionally, the connection portion 51 of the electrical device 50 extends out from the connection hole 111 , and the claw portion 212 is disposed in the connection hole 111 and is connected to the connection portion 51 of the electrical device 50 .

[0083] Optionally, the claw portion 212 can extend from the connecting hole 111 to the surface of the wall portion 110 away from the accommodating space 120, or the claw portion 212 can extend from the connecting hole 111 to the surface of the wall portion 110 toward the accommodating space 120, or the claw portion 212 can directly extend from the wall portion 110 toward the surface of the connecting hole 111 and be located in the connecting hole 111, and the claw portion 212 is interconnected with the connecting portion 51 of the electrical device 50 in the connecting hole 111.

[0084] In some embodiments, Figures 5 to 7 As shown, the claw portion 212 includes more than two cards 212a, each card 212a is connected to at least one side of the hollow area 213 in the circumferential direction, and at least two cards 212a are arranged on both sides of the hollow area 213 and extend in a direction approaching each other, so that the connecting portion 51 of the electrical device 50 can be clamped between the two cards 212a.

[0085] In these embodiments, the claw portion 212 includes a plurality of cards 212a, and at least two cards 212a are relatively arranged on both sides of the hollow area 213 and extend in a direction close to each other. By utilizing the elastic force of the two cards 212a, the cards 212a and the connecting portion 51 of the electrical device 50 can form an interference fit, so that the connecting portion 51 can be clamped between the two cards 212a. This can not only simplify the connection method between the electrical device 50 and the claw portion 212, but also ensure the stability of the electrical connection.

[0086] Optionally, the claw portion 212 includes three cards 212a, one of which is arranged on both sides of the hollow area 213 opposite to the other two cards 212a, and one of the above-mentioned cards 212a is located correspondingly in the middle of the two cards 212a on the opposite side, so that the three cards 212a can provide balanced pressure to the connecting portion 51 of the electrical device 50, thereby ensuring that the connection between the claw portion 212 and the connecting portion 51 of the electrical device 50 is tighter.

[0087] Optionally, the cards 212a located at opposite sides of the hollow area 213 away from the main body 211 in the thickness direction Z of the main body 211 are extended in a direction approaching each other, so that when away from the main body 211 in the thickness direction Z, the distance between the cards 212a located at opposite sides of the hollow area 213 gradually decreases, and can be interference-fitted with the connecting portion 51 of the electrical device 50.

[0088] In some embodiments, the body portion 211 is injection molded into the wall portion 110 , and the claw portion 212 extends out from a surface of the wall portion 110 .

[0089] In these embodiments, the body 211 is injection molded in the wall 110, so that the wall 110 can provide protection for the body 211 and reduce the scratches of other parts on the body 211. The claw 212 extends out of the surface of the wall 110 to facilitate the electrical connection between the claw 212 and the connecting portion 51 of the electrical device 50. In addition, the body 211 is injection molded in the wall 110, which can ensure the stability of the position of the body 211. When the connecting portion 51 is clamped to the claw 212, the instability of the claw 212 and the stability of the electrical connection are reduced.

[0090] Optionally, the main body 211 is injection molded in the wall 110, and the claw portion 212 can extend from the wall 110 toward the inner surface of the connection hole 111. As described above, the claw portion 212 can be interconnected with the connecting portion 51 of the electrical device 50 in the connection hole 111. Alternatively, the claw portion can extend from the connection hole 111 to the surface of the wall 110 facing or away from the accommodating space 120 to increase the size of the claw portion 212 and ensure that the claw portion 212 has a sufficient contact area with the connecting portion 51 of the electrical device 50. For example, when the first shell 100 is the above-mentioned first upper shell 4021, the claw portion can extend from the connection hole 111 to the surface of the wall 110 away from the accommodating space 120, so that the claw portion 212 can be electrically connected to the connecting piece of the electrical device 50 between the first upper shell 4021 and the second upper shell 4022.

[0091] In some embodiments, the conductive connection portion 220 is injection molded into the wall portion 110 .

[0092] In these embodiments, the wall portion 110 can provide protection for the conductive connection portion 220 to prevent the conductive connection portion 220 from being suspended in the accommodation space 120 and affecting the installation of other components.

[0093] Optionally, the conductive portion and the main body portion 211 are both injection molded into the wall portion 110 , which can ensure the reliability of the connection between the conductive connecting portion 220 and the main body portion 211 .

[0094] In some embodiments, the electrical connector 200 further includes a plug end 230 , at least one conductive connection portion 220 is connected between the terminal 210 and the plug end 230 , and the interconnected conductive connection portion 220 , the terminal 210 and the plug end 230 are integrally formed.

[0095] In these embodiments, some terminals 210 are electrically connected to the outside through the plug-in terminals 230, so the other ends of some conductive connecting parts 220 are connected to the plug-in terminals 230. The conductive connecting parts 220, terminals 210 and plug-in terminals 230 that are interconnected are integrally formed, which can further simplify the structure of the electrical connector 200. There is no need to assemble the conductive connecting parts 220 and the plug-in terminals 230 in the high-voltage box 40, which can simplify the assembly process of the high-voltage box 40, improve the assembly efficiency of the high-voltage box 40, and thereby improve the assembly rate of the battery.

[0096] Optionally, as described above, among the plurality of terminals 210 , some terminals 210 are electrically connected to each other through the conductive connection portion 220 and the plug-in terminal 230 , and other terminals 210 may be connected to both ends of the conductive connection portion 220 .

[0097] The plug-in end 230 can be connected to the end of the conductive connection part 220 away from the terminal 210 and extend along the thickness direction Z, so that the plug-in end 230 can protrude from the conductive connection part 220, which facilitates the plug-in connection between the plug-in end 230 and other parts. Optionally, the plug-in end 230 includes a connecting section and a plug-in section, the connecting section is connected to the conductive connection part 220 and extends along the thickness direction Z, the plug-in section is connected to the end of the connecting section away from the conductive connection part 220 and extends from the conductive connection part 220 along the length direction, and the plug-in section can be plug-in connected with other parts.

[0098] Optionally, the high-voltage box 40 includes a plurality of plug-in terminals 230 , and the plurality of plug-in terminals 230 may be arranged side by side to facilitate plug-in connection between the plurality of plug-in terminals 230 and the same plug-in component.

[0099] In some embodiments, the high-voltage box 40 further includes a plug-in port 300 , the plug-in end 230 is plugged into the plug-in port 300 , and the plug-in port 300 is injection-molded on the wall portion 110 .

[0100] In these embodiments, the plug port 300 for accommodating the plug end 230 is injection molded on the wall portion 110, and the plug port 300 and the first shell 100 do not need to be assembled in the high-voltage box 40, which can simplify the assembly process of the high-voltage box 40, improve the assembly efficiency of the high-voltage box 40, and thereby improve the assembly rate of the battery.

[0101] Optionally, as described above, the high-voltage box 40 includes a plurality of plug-in terminals 230 , and the plurality of plug-in terminals 230 may be arranged side by side with each other, and the plurality of plug-in terminals 230 may be plug-connected with the same plug interface 300 .

[0102] In some embodiments, the wall portion 110 includes a top wall 110a and a side wall 120a connected to the periphery of the top wall 110a. The top wall 110a and the side wall 120a enclose a receiving space 120. The electrical connector 200 is disposed on the top wall 110a.

[0103] In these embodiments, the electrical connector 200 is disposed on the top wall 110 a to facilitate electrical connection between the terminals 210 of the electrical connector 200 and the electrical devices 50 at different positions in the accommodating space 120 .

[0104] Optionally, as described above, when the conductive connection part 220 and / or the body part 211 are injection molded in the wall part 110, the conductive connection part 220 and / or the body part 211 can be injection molded in the top wall 110a. The top wall 110a is provided with the above-mentioned connection hole 111, and the claw part 212 is provided corresponding to the connection hole 111 on the top wall 110a, and the connection part 51 of the electrical device 50 is connected to each other via the connection hole 111 on the top wall 110a and the claw part 212.

[0105] In some embodiments, a first snap-fit ​​portion 130 is provided on the side wall 120a; the high-voltage box 40 also includes a second shell 400, the second shell 400 is provided on the side of the side wall 120a away from the top wall 110a, and a second snap-fit ​​portion 410 is provided on the second shell 400, and the first shell 100 and the second shell 400 are snap-fitted to each other through the first snap-fit ​​portion 130 and the second snap-fit ​​portion 410.

[0106] In these embodiments, the first shell 100 and the second shell 400 are snap-connected to each other via the first snap-fit ​​portion 130 and the second snap-fit ​​portion 410, which can simplify the assembly process of the first shell 100 and the second shell 400, improve the assembly efficiency of the high-voltage box 40, and ensure the stability of the relative position between the first shell 100 and the second shell 400.

[0107] Optionally, the second housing 400 may be the bottom housing 401 of the high voltage box 40. There are many ways to arrange the first buckle portion 130 and the second buckle portion 410. For example, the first buckle portion 130 is a hook, and the second buckle portion 410 is a hole, and the hook is engaged in the hole.

[0108] Optionally, the first snap portion 130 and the side wall 120a are integrally formed, and a snap groove may be provided on the side wall 120a, one end of the first snap portion 130 and the bottom wall of the snap groove are connected to each other, and the other end of the first snap groove extends out of the snap groove, and a gap is provided between the first snap portion 130 and the side wall 120a of the snap groove, so that the first snap portion 130 can be deformed toward or away from the accommodating space 120 relative to the first snap groove, and the first snap portion 130 can be snapped into the second snap portion 410 by utilizing the elasticity of the material of the first snap portion 130 itself.

[0109] Optionally, the first buckle portion 130 on the side wall 120a may further include a buckle hole, and the second buckle portion 410 on the second shell 400 may further include a buckle hook, so that the side walls 120a are buckled together through the buckle hole and the buckle hook.

[0110] Optionally, the side wall 120a includes two first side walls arranged opposite to each other along the first direction X and a second side wall arranged opposite to each other along the second direction Y. The two first side walls and the two second side walls are connected end to end to enclose the accommodating space 120. The first snap-fit ​​portion 130 on the first side wall can be a hook, and the first snap-fit ​​portion 130 on the second side wall can be a hole.

[0111] In some embodiments of the present application, the present application also provides a battery, comprising the high-voltage box 40 of any of the first aspects described above. Optionally, an electrical device 50 is disposed in the high-voltage box 40.

[0112] In some embodiments of the present application, an electrical device is further provided, comprising a battery according to any of the above embodiments, and the battery is used to provide electrical energy.

[0113] The power-consuming device may be any of the aforementioned devices or systems using batteries.

[0114] See also Figures 3 to 7As shown, the embodiment of the present application provides a high-voltage box 40 of a battery, and the high-voltage box 40 includes: a first shell 100, having a wall portion 110 and a receiving space 120 enclosed by the wall portion 110, and the receiving space 120 is used to receive an electrical device 50; an electrical connector 200, which is disposed in the first shell 100, and the electrical connector 200 includes a plurality of terminals 210 and a conductive connecting portion 220, and the conductive connecting portion 220 is connected to at least one terminal 210 and is integrally formed with the terminal 210, and the terminal 210 is used to connect the electrical device 50. The wall portion 110 includes a top wall 110a and a side wall 120a connected to the periphery of the top wall 110a, and the top wall 110a and the side wall 120a enclose the receiving space 120, and the electrical connector 200 is disposed on the top wall 110a. The terminal 210 includes a body portion 211 and a claw portion 212 connected in one piece. The body portion 211 encloses a hollow area 213. The claw portion 212 is connected to the edge of the hollow area 213 and tilted along the thickness direction Z of the body portion 211. The top wall 110a includes a connecting hole 111 provided therethrough. The claw portion 212 and the connecting hole 111 are provided correspondingly so that the claw portion 212 can be connected to the electrical device 50 via the connecting hole 111. The body portion 211 and the conductive connecting portion 220 are integrally injection molded in the top wall 110a. The claw portion 212 extends from the top wall 110a toward the inner surface of the connecting hole 111 to the surface of the top wall 110a away from the accommodation space 120. The claw portion 212 includes more than two cards 212a, each card 212a is connected to at least one side of the hollow area 213 in the circumferential direction, and at least two cards 212a are arranged on both sides of the hollow area 213 and extend in a direction close to each other, so that the connection portion 51 of the electrical device 50 can be clamped between the two cards 212a. The electrical connector 200 also includes a plug-in terminal 230, at least one conductive connection portion 220 is connected between the terminal 210 and the plug-in terminal 230, and the interconnected conductive connection portion 220, the terminal 210 and the plug-in terminal 230 are integrally formed. The high-voltage box 40 also includes a plug-in interface 300, the plug-in terminal 230 is plugged into the plug-in interface 300, and the plug-in interface 300 is injection molded on the wall portion 110.

[0115] 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 high voltage box for a battery, characterized in that: The high voltage box comprises: A first housing having a wall portion and a receiving space enclosed by the wall portion, wherein the receiving space is used to receive an electrical device; An electrical connector is arranged on the first shell, and the electrical connector includes a plurality of terminals and a conductive connecting portion. The conductive connecting portion is connected to at least one of the terminals and is integrally formed with the terminal. The terminal is used to connect the electrical device.

2. The high voltage box according to claim 1, characterized in that: The terminal comprises a body portion and a claw portion which are integrally connected, the body portion encloses a hollow area, and the claw portion is connected to the edge of the hollow area and warps along the thickness direction of the body portion.

3. The high voltage box according to claim 2, characterized in that: The wall portion includes a connecting hole that is arranged through the wall portion, and the claw portion and the connecting hole are arranged correspondingly, so that the claw portion can be connected to the electrical device via the connecting hole.

4. The high voltage box according to claim 3, characterized in that: The claw portion includes more than two cards, each of which is connected to at least one side of the hollow area in the circumferential direction, and at least two of the cards are arranged on both sides of the hollow area and extend in a direction approaching each other, so that the electrical connection part of the electrical device can be clamped between the two cards.

5. The high voltage box according to any one of claims 2 to 4, characterized in that: The main body is injection molded in the wall, and the claw extends out of the surface of the wall.

6. The high voltage box according to any one of claims 1 to 5, characterized in that: The conductive connection portion is injection molded inside the wall portion.

7. The high voltage box according to any one of claims 1 to 6, characterized in that: The electrical connector also includes a plug-in end, at least one of the conductive connecting parts is connected between the terminal and the plug-in end, and the conductive connecting part, the terminal and the plug-in end that are connected to each other are integrally formed.

8. The high voltage box according to claim 7, characterized in that: It also includes an insertion interface, the insertion end is plugged into the insertion interface, and the insertion interface is injection-molded on the wall portion.

9. The high voltage box according to any one of claims 1 to 8, characterized in that: The wall portion includes a top wall and a side wall connected to the periphery of the top wall. The top wall and the side wall enclose the accommodating space. The electrical connector is arranged on the top wall.

10. The high voltage box according to claim 9, characterized in that: A first buckle portion is provided on the side wall; The high-voltage box also includes a second shell, which is arranged on a side of the side wall away from the top wall. The second shell is provided with a second buckle portion, and the first shell and the second shell are buckled and connected to each other through the first buckle portion and the second buckle portion.

11. A battery, characterized in that: The invention comprises a high-voltage box as described in any one of claims 1 to 10.

12. An electrical device, characterized in that: A battery according to claim 11, for providing electrical energy.

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