Battery device and electric equipment

Abstract

The utility model discloses a battery device and electric equipment, the battery device comprises a battery box body, a plurality of battery monomers, at least two shells and a plurality of high-voltage elements, and the battery box body is provided with an energy bin and a control bin; a plurality of single batteries are arranged in the energy bin; the at least two shells and the plurality of high-voltage elements are arranged in the control bin; wherein at least two high-voltage elements are arranged in each shell. In one or more embodiments of the present application, at least two shells form a modular combination, and at least two modules can be used as modules with standardization and versatility so as to facilitate the installation and assembly of the modules, thereby enabling the production process to be simpler.

Description

Technical Field

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

[0002] Battery devices are widely used in electric vehicles, electric cars, electric airplanes, electric boats, electric toy cars, electric toy boats, electric toy airplanes, and power tools. As a core component of a battery device, the internal structure design of the high-voltage box has a significant impact on the performance and safety of the battery device.

[0003] In the related art, the high-voltage box structure of the battery device is not set reasonably, resulting in high maintenance costs when the high-voltage components are damaged. Utility Model Content

[0004] In view of this, the present application provides a battery device and an electrical device to solve the problem in the related art that the high-voltage box structure is unreasonable, resulting in high maintenance costs when the high-voltage components are damaged.

[0005] In order to solve the above technical problems, the first technical solution provided in this application is: to provide a battery device, including: a battery box, a number of battery cells, at least two shells and a plurality of high-voltage components, the battery box has an energy compartment and a control compartment; a number of battery cells are arranged in the energy compartment; at least two shells and a plurality of high-voltage components are arranged in the control compartment; wherein, at least two of the high-voltage components are arranged in each of the shells.

[0006] In one or more embodiments of the present application, at least two high-voltage components are disposed within each housing, and the housing and the at least two high-voltage components therein together form a module. In this manner, an existing high-voltage box is modularized to form at least two modules. These at least two modules can serve as standardized and universal modules, facilitating installation and assembly, thereby reducing maintenance costs for the battery device.

[0007] In some embodiments, the high-voltage element includes a positive relay, a negative relay, a fuse or a shunt; at least the positive relay, the negative relay, the fuse and the shunt are arranged in the control compartment; wherein, the positive relay and the fuse are connected, and the positive relay is arranged in one of the shells; the negative relay and the shunt are connected, and the negative relay is arranged in another of the shells.

[0008] In one or more embodiments of the present application, the positive relay and the fuse are connected as a switch to realize the on-off control of the current and fault protection. The positive relay and the fuse are arranged in the same housing and can be conveniently connected; the negative relay and the shunt are connected for real-time monitoring of the current. The negative relay and the shunt are arranged in the same housing and can also be conveniently connected; at the same time, the above connection method and installation method facilitate the independent setting of the two modules.

[0009] In some embodiments, there are two positive relays, and both of the positive relays are connected to the fuse; and / or

[0010] There are two negative relays, and both of the two negative relays are connected to the shunt.

[0011] In one or more embodiments of the present application, all positive relays and fuses are arranged in the same housing, which can facilitate the connection of two positive relays and fuses; all relays and shunts are arranged in the same housing to facilitate the connection of two negative relays and shunts. In this way, two positive relays and fuses are arranged in the same housing to form a positive module high-voltage box assembly, and two negative relays and shunts are arranged in the same housing to form a negative module high-voltage box assembly. Turning one high-voltage box assembly into two independent high-voltage box assemblies facilitates production, installation, and replacement. Two relays are arranged in each high-voltage box to realize different circuit functions, which can be connected according to specific needs.

[0012] In some embodiments, the battery device satisfies at least one of conditions a and b:

[0013] a. The fuse and the positive relay are arranged in the same housing; or the fuse is arranged outside the housing;

[0014] b. The shunt and the negative relay are arranged in the same housing; or the shunt is arranged outside the housing.

[0015] In one or more embodiments of the present application, all positive relays and fuses are arranged in the same housing, which can facilitate the connection of two positive relays and fuses; all relays and shunts are arranged in the same housing to facilitate the connection of two negative relays and shunts. In this way, two positive relays and fuses are arranged in the same housing to form a positive module high-voltage box assembly, and two negative relays and shunts are arranged in the same housing to form a negative module high-voltage box assembly. One high-voltage box assembly is changed into two independent high-voltage box assemblies, which is convenient for production, installation and replacement. Two relays are arranged in each high-voltage box to realize different circuit functions, which can be connected according to specific needs. The two positive relays are arranged separately from the fuses, and the two negative relays are arranged separately from the shunts, which can facilitate separate replacement and repair of the relays, fuses or shunts when they are damaged, thereby reducing maintenance costs and improving replacement and repair efficiency.

[0016] In some embodiments, the shell includes a top wall, a bottom wall, and side walls that are interconnected, and the side walls of the shell form a hollow portion, through which at least a portion of the high-voltage component is exposed to the outside of the shell.

[0017] In one or more embodiments of the present application, a hollow portion is formed on the side wall of the shell, so that heat dissipation of multiple high-voltage components arranged inside the shell can be facilitated.

[0018] In some embodiments, the shell includes a mounting seat and a cover plate, the mounting seat includes a base and a first support column arranged on the base; the cover plate is detachably connected to an end of the first support column away from the mounting seat.

[0019] In one or more embodiments of the present application, the plate-like cover can be manufactured using a vacuum forming process, thereby reducing costs. The cover is supported by the first support column, and the base and the cover are connected by the first support column. This not only improves the installation stability of the base and the cover, but also prevents the first support column from completely enclosing the high-voltage components disposed within the housing, thereby improving the heat dissipation effect of the high-voltage components disposed within the housing.

[0020] In some embodiments, the cover plate is a flat plate structure, the first support column extends from the base to the surface of the cover plate facing the base, and the end of the first support column away from the base is fixed to the cover plate through a first connecting member.

[0021] In one or more embodiments of the present application, the cover plate is a flat plate structure, which facilitates connection between the first support column and the cover plate. The flat plate cover plate is connected to the first support column, and the end of the first support column away from the base is fixed to the cover plate via a first connector, thereby improving the stability of the connection between the base and the cover body. The first support column supports and connects the cover plate and the base, achieving a stable connection between the cover plate and the base and facilitating heat dissipation of high-voltage components disposed between the cover plate and the base. Furthermore, the flat plate cover plate can be manufactured using a blister process, achieving the effect of reducing costs and increasing efficiency.

[0022] In some embodiments, the mounting seat further includes a boss, which is disposed on a surface of the base close to the cover plate; wherein a portion of the high-voltage components are mounted on the base, and another portion of the high-voltage components are mounted on the boss.

[0023] In one or more embodiments of the present application, the connection stability between multiple high-voltage components is improved by providing a boss.

[0024] In some embodiments, the mounting base also includes a second support column, which is arranged on the surface of the base facing the cover plate and extends toward the cover plate, and the end of the second support column away from the base is spaced apart from the cover plate; a tab is also provided in the shell, one end of the tab is arranged on the end surface of the second support column away from the base and connected to the connection terminal, and the other end is connected to the high-voltage element.

[0025] In one or more embodiments of the present application, the end of the second support column away from the base is spaced apart from the cover plate, thereby facilitating the placement of other components at the end of the second support column away from the base. The provision of the second support column to support the tab can reduce damage to the positive or negative relay caused by mechanical pressure generated when the tab is connected to other components.

[0026] In some embodiments, one of the shells is a positive pole shell; a positive relay, a fuse, a first positive pole piece and a second positive pole piece are provided in the positive pole shell; the first positive pole piece includes a first main body section and a first extension section; the first end of the first main body section is connected to the fuse, and the second end is connected to the positive relay; one end of the first extension section is connected to the second end of the first main body section, and the other end is fixed to the end face of the second support column away from the base through the front drive positive connection terminal and the rear drive positive connection terminal; one end of the second positive pole piece is connected to the positive relay, and the other end is fixed to the end face of the second support column away from the base through the fast charge positive connection terminal.

[0027] In one or more embodiments of the present application, the positive relay is arranged on the base, and the fuse is suspended by the boss; by setting the first positive electrode tab to include a first main section and a first extension section, it is convenient to connect the two ends of the first positive electrode tab with the fuse and the positive relay respectively, and at the same time save the installation space in the positive electrode shell.

[0028] In some embodiments, the positive electrode housing includes a plurality of second support columns arranged at intervals, and the front-wheel drive positive connection terminal, the rear-wheel drive positive connection terminal and the fast-charging positive connection terminal are arranged in a one-to-one correspondence with the plurality of second support columns.

[0029] In one or more embodiments of the present application, the positive electrode housing includes a plurality of second support columns spaced apart to facilitate better heat dissipation within the positive electrode housing. The front drive positive connection terminal, the rear drive positive connection terminal, and the fast charge positive connection terminal are disposed in a one-to-one correspondence with the plurality of second support columns, so that the front drive positive connection terminal, the rear drive positive connection terminal, and the fast charge positive connection terminal each have their own second support column for support, thereby improving support and connection effects.

[0030] In some embodiments, one of the shells is a negative pole shell; a negative relay, a shunt, a first negative pole bar and a second negative pole bar are provided in the negative pole shell; the first negative pole bar includes a second main body section and a second extension section; the first end of the second main body section is connected to the shunt, and the second end is connected to the negative relay; one end of the second extension section is connected to the second end of the second main body section, and the other end is fixed to the end face of the second support column away from the base through the front drive negative connection terminal and the rear drive negative connection terminal; one end of the second negative pole bar is connected to the negative relay, and the other end is fixed to the end face of the second support column away from the base through the fast charge negative connection terminal.

[0031] In one or more embodiments of the present application, the negative relay is arranged on the base, and the diverter is suspended by the boss; by setting the first negative electrode tab to include a second main section and a second extension section, it is convenient to connect the two ends of the first negative electrode tab with the diverter and the negative relay respectively, and at the same time save the installation space in the negative electrode shell.

[0032] In some embodiments, the negative electrode housing includes a plurality of second support columns arranged at intervals, and the front drive negative connection terminal, the rear drive negative connection terminal and the fast charge negative connection terminal are arranged in a one-to-one correspondence with the plurality of second support columns.

[0033] In one or more embodiments of the present application, the negative electrode housing includes a plurality of second support columns spaced apart to facilitate better heat dissipation within the negative electrode housing. The front drive negative connection terminal, the rear drive negative connection terminal, and the fast charge negative connection terminal are disposed in a one-to-one correspondence with the plurality of second support columns, so that the front drive negative connection terminal, the rear drive negative connection terminal, and the fast charge negative connection terminal each have their own second support column for support, thereby improving support and connection effects.

[0034] In some embodiments, the negative electrode housing includes two bosses; the shunt is suspended by the two bosses; and a corner of the shunt and a corner of one of the bosses both have a cut angle.

[0035] In one or more embodiments of the present application, the two bosses of the negative electrode housing can be spaced apart to facilitate heat dissipation of multiple high-voltage components within the negative electrode housing. The corner cuts of the shunt are aligned with the corner cuts of the bosses, thereby reducing the probability of reverse installation of the shunt and facilitating quick and accurate installation of the shunt.

[0036] In some embodiments, the battery device further includes a bracket, the shell is disposed on the bracket, and at least two of the shells are installed in the battery device through the bracket.

[0037] In one or more embodiments of the present application, the housing and the bracket can be detachably connected, such as by bolts. At least two of the housings are installed in the battery device via the bracket, which can facilitate installation and fixation of the housings.

[0038] To solve the above technical problems, the second technical solution provided by this application is to provide an electrical device comprising any of the above battery devices. The electrical device comprises the above battery device, so the electrical device has the same technical effects as the above battery device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0040] Figure 1 This is a schematic diagram of the structure of an electrical device provided in one embodiment of the present application;

[0041] Figure 2 is a structural diagram of a battery device provided in one embodiment of the present application;

[0042] Figure 3This is a schematic structural diagram of a battery cell provided in one embodiment of the present application;

[0043] Figure 4 This is a simplified structural diagram of a battery box according to an embodiment of the present application;

[0044] Figure 5 This is a simplified structural diagram of an embodiment of a housing provided by an embodiment of the present application;

[0045] Figure 6 This is a schematic diagram of the three-dimensional structure of the first housing provided by an embodiment of the present application from a first viewing angle, showing the structure of the first housing where the positive relay and the fuse are located;

[0046] Figure 7 This is a schematic diagram of a partial structural breakdown of the first housing provided by an embodiment of the present application from a second perspective; it shows the structure of the first housing where the positive relay and the fuse are located;

[0047] Figure 8 This is a schematic diagram of the three-dimensional structure of the first housing provided by an embodiment of the present application from a third viewing angle, showing the structure of the first housing where the positive relay and the fuse are located;

[0048] Figure 9 1 is a schematic diagram of the three-dimensional structure of the second housing provided by an embodiment of the present application from a first perspective; it shows the structure of the second housing where the negative relay and the shunt are located;

[0049] Figure 10 This is a schematic diagram of a partial structure disassembly of the second housing provided by an embodiment of the present application from a second perspective; it shows the structure of the second housing where the negative relay and the shunt are located;

[0050] Figure 11 1 is a schematic diagram of the three-dimensional structure of the second housing provided by an embodiment of the present application from a third viewing angle, showing the structure of the second housing where the negative relay and the shunt are located;

[0051] Figure 12 This is a schematic diagram of a top view of the structure of the extended embodiment 1 of the present application, in which two positive relays are arranged in a housing and a fuse is arranged outside the housing; wherein the two positive relays are connected in series;

[0052] Figure 13 This is a schematic diagram of a top view of the structure of the second extended embodiment of the present application, in which two positive relays are arranged in a housing and a fuse is arranged outside the housing; wherein the two positive relays are connected in series;

[0053] Figure 14 This is a schematic diagram of a top view of the structure of the third extended embodiment of the present application, in which two positive relays are arranged in a housing and a fuse is arranged outside the housing; wherein the two positive relays are connected in parallel;

[0054] Figure 15 This is a top view structural diagram of the fourth extended embodiment of the present application, in which two positive relays are arranged in a shell and a fuse is arranged outside the shell; the two positive relays are connected in parallel.

[0055] Description of reference numerals:

[0056] 1000, vehicle; 100, battery device; 200, electrical device; 201, controller; 300, motor; 400, electrical equipment;

[0057] 10. Battery box; 101. Energy compartment; 102. Control compartment; 11. First part; 12. Second part;

[0058] 20. Battery cell; 21. Housing; 211. End cap; 211a. Electrode terminal; 212. Battery housing; 22. Electrical connector; 23. Electrode assembly; 23a. Tab; 24. Insulator;

[0059] 30. Shell; 30a. First shell; 30b. Second shell; 301. Top wall; 302. Bottom wall; 303. Side wall; 3031. Hollow part; 31. Cover; 311. Through hole; 32. Mounting seat; 321. Base; 322. First support column; 323. Boss; 324. Second support column; 325. First connector; 331. Positive relay; 332. Negative relay; 333. Fuse; 334. Shunt; 35. Piece; 351. First positive electrode piece; 3511. First Main section; 3512, first extension section; 3513, first bend section; 352, second positive electrode tab; 353, first negative electrode tab; 3531, second main section; 3532, second extension section; 3533, second bend section; 354, second negative electrode tab; 361a, front drive positive connection terminal; 361b, front drive negative connection terminal; 362a, rear drive positive connection terminal; 362b, rear drive negative connection terminal; 363a, fast charge positive connection terminal; 363b, fast charge negative connection terminal; 37, cut corner;

[0060] 40. Bracket. DETAILED DESCRIPTION

[0061] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0062] The terms "first" and "second" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of the various components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0063] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

[0064] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0065] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0066] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0067] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0068] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0069] With the development of clean energy, more and more devices use electricity as a driving force, making the application of battery devices more extensive. In turn, power batteries that can store a large amount of electricity and can be charged and discharged repeatedly have rapidly developed, such as lithium-ion batteries. Battery devices can be power batteries. Power batteries are power sources that provide a source of power for tools. Among them, power batteries mostly refer to batteries that provide power for vehicles such as electric vehicles, electric trains, electric bicycles, golf carts, and aerospace. Of course, battery devices can also be energy storage batteries. Energy storage batteries refer to batteries used to store energy from renewable energy sources such as hydropower, thermal power, wind power, and solar power stations. As the application fields of battery devices continue to expand, their market demand is also constantly expanding.

[0070] A battery assembly can also be referred to as a battery pack. A battery assembly may include a battery case, a high-voltage box, and battery cells, with the high-voltage box and battery cells contained within the battery case. The high-voltage box includes a housing, which houses components such as relays and fuses. The battery assembly is connected to the vehicle's electrical system through the high-voltage box, which also distributes high voltage to the battery assembly. However, during the production process, the structural design of the high-voltage box has a significant impact on the performance and safety of the battery assembly.

[0071] In the related art, since all high-voltage components of the high-voltage box are arranged in the same housing, the high-voltage box has a low degree of modularity. When a high-voltage component is damaged, the entire high-voltage box needs to be replaced, resulting in high maintenance costs for the battery device.

[0072] In view of this, in order to reduce the maintenance cost of the battery device. The embodiment of the present application provides a battery device and electrical equipment, the battery device includes a battery box, a plurality of battery cells, at least two shells and a plurality of high-voltage components; each of the shells is provided with at least two high-voltage components, thereby forming a module. In this way, by modularizing the original high-voltage box into at least two modules, the at least two modules can be used as standardized and universal modules to facilitate rapid installation and replacement of the modules, thereby reducing the maintenance cost of the battery device.

[0073] See also Figure 1 One embodiment of the present application provides an electric device 400 using a battery device 100 as a power source.

[0074] An electric device 400 provided in one embodiment of the present application includes a battery device 100 .

[0075] In one embodiment, the electric device 400 may further include an electric component 200 . The battery device 100 is electrically connected to the electric component 200 . The battery device 100 is used to provide power to the electric device 400 so that the electric device 400 can operate.

[0076] Electrically powered devices 400 may include vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools. Spacecraft include airplanes, rockets, space shuttles, and spacecraft. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. Electric tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0077] The electrical device 200 can be an element or device that can consume electricity; the electrical device 200 can be a controller 201 and electronic components, etc. The controller 201 can be a central processing unit (CPU), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0078] The electric device 400 includes the battery device 100 described below, and thus the electric device 400 has the same technical effects as the battery device 100 .

[0079] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device in an embodiment of the present application.

[0080] Please continue reading Figure 1 , Figure 1 A schematic structural diagram of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000. The battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000. For example, the battery device 100 may serve as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 201 and a motor 300. The controller 201 is used to control the battery device 100 to power the motor 300, for example, for starting, navigating and operating power requirements of the vehicle 1000 during driving.

[0081] In some embodiments of the present application, the battery device 100 can serve not only as an operating power source for the vehicle 1000 , but also 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 .

[0082] See also Figures 2 to 11 , the present application also provides a battery device 100.

[0083] The battery device 100 provided in an embodiment of the present application includes a battery case 10 and several battery cells 20, at least two shells 30 and multiple high-voltage components, the battery case 10 has an energy compartment 101 and a control compartment 102; several battery cells 20 are arranged in the energy compartment 101; at least two shells 30 and multiple high-voltage components are arranged in the control compartment 102; wherein, each shell 30 is provided with at least two high-voltage components.

[0084] Specifically, the energy compartment 101 is used to accommodate a plurality of battery cells 20. Specifically, the plurality of battery cells 20 are disposed within the energy compartment 101. The plurality of battery cells 20 can be understood as one battery cell 20 or a plurality of battery cells 20. The battery cells 20 are used to provide voltage and capacity. The battery cells 20 can be cylindrical or square in shape.

[0085] In some embodiments, see Figure 2The battery case 10 is used to provide a storage space for the battery cells 20. The battery case 10 can adopt various structures. In some embodiments, the battery case 10 can include a first portion 11 and a second portion 12. The first portion 11 and the second portion 12 cover each other and together define an energy compartment 101 for accommodating the battery cells 20, and a control compartment 102 for accommodating the housing and multiple high-voltage components (not shown). The second portion 12 can be a hollow structure with one end open. The first portion 11 can be a plate-like structure. The first portion 11 covers the open side of the second portion 12, so that the first portion 11 and the second portion 12 together define the energy compartment 101 and the control compartment 102. The first portion 11 and the second portion 12 can also be hollow structures with one end open, with the open side of the first portion 11 covering the open side of the second portion 12. Of course, the battery case 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0086] In the battery device 100, there may be multiple battery cells 20, which may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery unit 20 is housed within the battery case 10. Alternatively, the battery device 100 may comprise multiple battery cells 20 connected in series, in parallel, or in a hybrid connection to form a battery module. The multiple battery modules are then connected in series, in parallel, or in a hybrid connection to form a single unit, which is then housed within the battery case 10. The battery device 100 may also include other structures. For example, the battery device 100 may include a busbar (not shown) for electrically connecting the multiple battery cells 20. The busbar may be a sheet of copper or aluminum bars.

[0087] Each battery cell 20 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto.

[0088] The battery cell 20 refers to the energy storage unit that constitutes the battery device 100. In some embodiments, see Figure 3 The battery cell 20 includes a housing 21, an electrode assembly 23, and other functional components. The housing 21 includes an end cap 211 and a battery housing 212. The battery housing 212 has an opening, and the end cap 211 closes the opening.

[0089] The end cap 211 is a component that covers the opening of the battery housing 212 to isolate the internal environment of the battery cell 20 from the external environment. The shape of the end cap 211 can be adapted to the shape of the battery housing 212 to fit the battery housing 212. Optionally, the end cap 211 can be made of a material with a certain degree of hardness and strength (such as an aluminum alloy). This prevents the end cap 211 from deforming when subjected to compression or collision, thereby enhancing the structural strength and safety of the battery cell 20. The end cap 211 can be provided with functional components such as electrode terminals 211a. The electrode terminals 211a can be used to electrically connect to the electrode assembly 23 to transmit or receive electrical energy from the battery cell 20. In some embodiments, the end cap 211 can also be provided with a pressure relief mechanism to release internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The end cap 211 can also be made of a variety of materials, including but not limited to copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. In some embodiments, an insulating member 24 may be provided inside the end cap 211 to isolate the electrical connection components in the battery housing 212 from the end cap 211 to reduce the risk of short circuits. For example, the insulating member 24 may be made of plastic, rubber, or the like.

[0090] The battery housing 212 is a component that cooperates with the end cap 211 to form the internal environment of the battery cell 20. This internal environment can be used to accommodate the electrode assembly 23, electrolyte (not shown), and other components. The battery housing 212 and the end cap 211 can be separate components. An opening can be provided in the battery housing 212, and the end cap 211 is placed over the opening to form the internal environment of the battery cell 20. Alternatively, the end cap 211 and the battery housing 212 can be integrated. Specifically, the end cap 211 and the battery housing 212 can form a common connection surface before other components are inserted into the housing. When the interior of the battery housing 212 is to be enclosed, the end cap 211 is placed over the battery housing 212. The battery housing 212 can have a variety of shapes and sizes, such as a rectangular parallelepiped, a cylinder, or a hexagonal prism. Specifically, the shape of the battery housing 212 can be determined based on the specific shape and size of the electrode assembly 23. The battery housing 212 can be made of a variety of materials, including but not limited to copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. The battery housing 212 can be provided with an electrode lead (not shown) for electrically connecting to the tab 23 a to output or input electrical energy to or from the battery cell 20.

[0091] The electrode assembly 23 is the component in the battery cell 20 where the electrochemical reaction occurs. The battery housing 212 may contain one or more electrode assemblies 23. The electrode assembly 23 is primarily formed by winding or stacking a positive electrode sheet (not shown) and a negative electrode sheet (not shown), and a separator is typically provided between the positive and negative electrode sheets. The portions of the positive and negative electrode sheets containing active material constitute the main body of the electrode assembly (not shown), while the portions of the positive and negative electrode sheets without active material each constitute a tab 23a. The positive and negative electrode tabs 23a may be located together at one end of the main body or separately at both ends of the main body. During the charge and discharge process of the battery device 100, the positive and negative electrode active materials react with the electrolyte, and the tabs 23a are connected to the electrode terminals 211a via the electrical connector 22 to form a current circuit.

[0092] See also Figures 4 to 11 The control compartment 102 of the battery case 10 is used to accommodate at least two shells 30 and multiple high-voltage components. The at least two shells 30 can be understood as at least two independent shells 30, wherein the shells 30 are used to install high-voltage components. The at least two shells 30 can be, for example, a first shell 30a and a second shell 30b. At least two shells 30 and multiple high-voltage components are arranged in the control compartment 102, which can be understood as at least two shells 30 and multiple high-voltage components are all arranged in the control compartment 102, but the positional relationship between the multiple high-voltage components and the at least two shells 30 is not limited here. That is, a part of the multiple high-voltage components can be arranged in the shell 30, and the other part can be arranged outside the shell 30; the multiple high-voltage components can also be all arranged in the shell 30, and a part of the high-voltage components can be arranged in one of the shells 30 of the at least two shells 30, and the other part of the high-voltage components can be arranged in the other shells 30.

[0093] Each housing 30 houses at least two high-voltage components. Together, the housing 30 and the at least two high-voltage components within it form a module. This modular design transforms an existing high-voltage box into at least two modules. These two modules can be standardized and used universally, facilitating installation and assembly, thereby reducing maintenance costs for the battery device 100.

[0094] Furthermore, an existing high-voltage box is modularized to form at least two modules. The at least two modules can be produced separately and installed in the control compartment 102 , thereby improving the production efficiency of the battery device 100 .

[0095] Furthermore, after modularizing an existing high-voltage box, the volume of the shell 30 can be made relatively small, so that the volume of each shell 30 is reduced relative to the volume of the large shell of the high-voltage box in the related art, thereby reducing the deformation risk of each shell 30 compared to the large shell of the high-voltage box in the related art.

[0096] In some embodiments, see Figures 6 to 11 The high-voltage components include a positive relay 331, a negative relay 332, a fuse 333 (fuse), or a shunt 334 (shunt). At least the positive relay 331, negative relay 332, fuse 333, and shunt 334 are located within the control compartment. The positive relay 331 is connected to the fuse 333 and is housed within one housing 30. The negative relay 332 is connected to the shunt 334 and is housed within another housing 30. The total positive output of battery cells connected in series, parallel, or mixed can be electrically connected to the fuse 333, and the total negative output can be electrically connected to the shunt 334. The positive relay 331 can be connected to different terminals, such as at least one of the front drive positive electrode, rear drive positive electrode, and fast charge positive electrode. The negative relay 332 can be connected to different terminals, such as at least one of the front drive negative electrode, rear drive negative electrode, and fast charge negative electrode, thereby forming a charge-discharge circuit.

[0097] Specifically, the positive relay 331 can be understood as a positive relay, the negative relay 332 can be understood as a negative relay, and the fuse 333 (FUSE) can be understood as a component that cooperates with the positive relay 331 to provide overcurrent protection. The shunt 334 (shunt) can be understood as a low-resistance precision alloy resistor used for current detection and feedback control of the battery cell 20. The connection between the positive relay 331 and the fuse 333 can be understood as both a mechanical and electrical connection. The connection between the negative relay 332 and the shunt 334 can be understood as both a mechanical and electrical connection.

[0098] In one or more embodiments of the present application, the shunt 334 has higher detection accuracy and lower cost than the Hall effect sensors commonly used in related technologies. The positive relay 331 and the fuse 333 are electrically connected as a switching circuit to achieve current on-off control and fault protection; the negative relay 332 and the shunt 334 are electrically connected to perform real-time current monitoring. When the negative relay 332 and the shunt 334 are electrically connected, current detection and feedback control are performed through the shunt 334. For example, if the shunt 334 detects a short circuit or abnormal current, the negative relay 332 will be disconnected urgently to prevent the battery device 100 from overloading or thermal runaway. The integration of the shunt 334 and the negative relay 332 can reduce line losses and improve response speed.

[0099] In some embodiments, two positive relays 331 are provided, and both positive relays 331 are connected to the fuse 333 ; and / or two negative relays 332 are provided, and both negative relays 332 are connected to the shunt 334 .

[0100] Specifically, the two positive relays 331 are connected to the fuse 333, which can be understood as the two positive relays 331 are mechanically and electrically connected to the fuse 333, respectively. Specifically, the two positive relays 331 and the fuse 333 can be disposed within the same housing 30. The two negative relays 332 are connected to the shunt 334, which can be understood as the two negative relays 332 are mechanically and electrically connected to the shunt 334, respectively. Specifically, the two negative relays 332 and the shunt 334 can be disposed within the same housing 30.

[0101] In this embodiment, if Figures 12 to 15 As shown by the arrows, the two positive relays 331 can be connected in series and then electrically connected to the fuse 333; the two positive relays 331 can also be connected in parallel and then electrically connected to the fuse 333. The two negative relays 332 can be connected in series and then electrically connected to the shunt 334; the two negative relays 332 can also be connected in parallel and then electrically connected to the shunt 334.

[0102] For ease of description, this embodiment is described by taking the connection between two positive relays 331 and the fuse 333 as an example. It can be understood that the connection between the two negative relays 332 and the shunt 334 is similar.

[0103] like Figures 12 to 13 As shown, two positive relays 331 are connected in series, for example, a fuse 333 is connected to the first electrode terminal of the first positive relay 331, and the second electrode terminal of the first positive relay 331 is connected to the first electrode terminal of the second positive relay 331 through a bar 35, and the second electrode terminal of the second positive relay 331 is used to output charging or driving. Figure 14 As shown, two positive relays 331 are connected in parallel, and the fuse 333 is connected to the second electrode terminals of the two positive relays 331 through the same electrode terminal and the bar 35, and outputs are respectively made from the first electrode terminals of the two positive relays 331. Figure 15 As shown, two positive relays 331 are connected in parallel, the fuse 333 is connected to the second electrode terminal of the first positive relay 331, the first electrode terminal of the first positive relay 331 is connected to the first electrode terminal of the second positive relay 331 through the bar 35, and the first electrode terminal of the other positive relay 331 is output for charging or driving.

[0104] In one or more embodiments of the present application, the above-mentioned setting method and connection method can facilitate the connection of two positive relays 331 and fuses 333, and the connection of two negative relays 332 and shunts 334. The two positive relays 331 and fuses 333 are arranged in the same housing 30 to form a positive module high-voltage box assembly, and the two negative relays 332 and shunts 334 are arranged in the same housing 30 to form a negative module high-voltage box assembly. Turning one high-voltage box assembly into two independent high-voltage box assemblies facilitates production, installation, and replacement. Furthermore, two relays are arranged in each high-voltage box to realize different circuit functions, which can be connected according to specific needs.

[0105] In some embodiments, the battery device 100 satisfies at least one of the conditions a and b:

[0106] a. The fuse 333 and the positive relay 331 are disposed in the same housing 30; or the fuse 333 is disposed outside the housing 30;

[0107] b. The shunt 334 and the negative relay 332 are arranged in the same housing 30; or the shunt is arranged outside the housing 30.

[0108] For example, in one or more embodiments of the present application, the positive relay 331 and fuse 333 are located within the same housing 30, achieving a mechanical connection and facilitating electrical connection. The integration of the shunt 334 and the negative relay 332 can reduce line losses and improve response speed. The negative relay 332 and shunt 334 are located within the same housing 30, achieving a mechanical connection and facilitating electrical connection. Furthermore, the aforementioned connection and mounting methods facilitate the independent installation of the two modules.

[0109] The positive relay 331 and fuse 333 are housed in the same housing 30 to form the positive module high-voltage box assembly, while the negative relay 332 and shunt 334 are housed in the same housing 30 to form the negative module high-voltage box assembly. This makes the single high-voltage box assembly two separate ones, facilitating production, installation, and replacement.

[0110] For another example, in one or more embodiments of the present application, the number of shells 30 can be two, defined as a first shell 30a and a second shell 30b respectively; two positive relays 331 are arranged in the first shell 30a, and two negative relays 332 are arranged in the second shell 30b; the fuse 333 is arranged outside the first shell 30a and connected to the two positive relays 331; the shunt 334 is arranged outside the second shell 30b and connected to the two negative relays 332.

[0111] Specifically, the two positive relays 331 and the two negative relays 332 are both located inside the housing 30, and the two positive relays 331 and the two negative relays 332 are located in two separate housings 30, namely, the two positive relays 331 are located in the first housing 30a, and the two negative relays 332 are located in the second housing 30b. The fuse 333 and the shunt 334 are both located outside the housing 30. Specifically, the fuse 333 is connected to the two positive relays 331 and is located outside the first housing 30a; the shunt 334 is connected to the two negative relays 332 and is located outside the second housing 30b.

[0112] Two positive relays 331 are arranged in the first shell 30a, and two negative relays 332 are arranged in the second shell 30b; the fuse 333 is connected to the two positive relays 331 and is arranged outside the first shell 30a; the shunt 334 is connected to the two negative relays 332 and is arranged outside the second shell 30b, so that the volume of the first shell 30a and the second shell 30b can be made smaller, so that the volume of the first shell 30a and the second shell 30b is reduced relative to the volume of the large shell of the high-voltage box in the related technology, thereby reducing the deformation risk of the first shell 30a and the second shell 30b compared with the large shell of the high-voltage box in the related technology.

[0113] The reduced volume of the first housing 30a and the second housing 30b can save installation space in the control compartment 102. Furthermore, the two positive relays 331 and the first housing 30a form an independent positive module, and the fuse 333 is disposed outside the first housing 30a, facilitating separate installation or replacement of the fuse 333 and the positive module. The two negative relays 332 and the second housing 30b form an independent negative module, and the shunt 334 is disposed outside the second housing 30b, facilitating separate installation or replacement of the shunt 334 and the negative module.

[0114] The two positive relays 331 are separately arranged from the fuse 333, and the two negative relays 332 are separately arranged from the shunt 334, which makes it easy to replace and repair them separately when the relays, fuses 333 or shunts 334 are damaged, thereby reducing maintenance costs and improving replacement and maintenance efficiency.

[0115] At the same time, setting the positive and negative modules separately and arranging the high-voltage components in a unified and standardized manner can solve the problem of compact arrangement of high-voltage components inside the high-voltage box in traditional designs and the non-uniform arrangement of high-voltage components in the high-voltage box, which causes heat accumulation and affects the service life of the high-voltage components, thereby improving the service life of the high-voltage components.

[0116] In some embodiments, see Figure 5The shell 30 includes a top wall 301, a bottom wall 302 and a side wall 303 connected to each other, and the side wall 303 of the shell 30 forms a hollow portion 3031, and at least part of the high-voltage components are exposed outside the shell 30 through the hollow portion 3031.

[0117] In one or more embodiments of the present application, the side wall 303 of the shell 30 forms a hollow portion 3031, which can be understood as at least part of the position of the side wall 303 of the shell 30 is disconnected. Exposed to the outside of the shell can be understood as not being covered or blocked by the shell 30. At least part of the high-voltage components are exposed to the outside of the shell through the hollow portion 3031, which can be understood as being part of the same high-voltage component or one or more of the high-voltage components are exposed to the outside through the hollow portion 3031 of the side wall 303. In this embodiment, each side wall 303 of the shell 30 may include one or more hollow portions 3031, or a hollow portion 3031 may be opened in one or more side walls 303. The shape of the hollow portion 3031 is not limited, and may include but is not limited to a circle, an ellipse or a polygon.

[0118] The embodiment provided in the present application forms a hollow portion 3031 on the side wall 303 of the housing 30 , thereby facilitating heat dissipation for multiple high-voltage components disposed inside the housing 30 .

[0119] In other embodiments, see Figures 6 to 11 The shell 30 includes a mounting seat 32 and a cover plate 31 . The mounting seat 32 includes a base 321 and a first support column 322 arranged on the base 321 . The cover plate 31 is detachably connected to one end of the first support column 322 away from the base 321 .

[0120] In one or more embodiments of the present application, "cover plate 31" can be understood as the housing 30 being a plate-like body with no vertical surfaces or sidewalls; alternatively, "cover plate 31" can be understood as the housing 30 being a plate-like body with relatively short vertical surfaces. The plate-like body can be a flat or curved plate. The mounting seat 32 can be understood as a seat within the housing 30, located opposite the cover plate 31, for mounting high-voltage components. Specifically, the base 321 is located opposite the cover plate 31. The first support column 322 can be understood as a columnar body disposed on the base 321 and extending toward the cover plate 31. Specifically, it can be in the shape of a cylinder, a prism, or the like. The first support column 322 is specifically disposed between the cover plate 31 and the base 321, with its ends connected to the base 321 and the cover plate 31, respectively. In this embodiment, the number of first support columns 322 can be 3 to 6; in other embodiments, the number of first support columns 322 can be adjusted as needed. The first support column 322 and the base 321 can be integrally formed.

[0121] The fact that the shell 30 has no vertical surfaces or sidewalls on all sides can be understood as meaning that the shell 30 is a plate-like structure without sidewalls. The fact that the shell 30 has relatively low vertical surfaces on all sides can be understood as meaning that the shell 30 has relatively short sidewalls on all sides in the thickness direction of the battery case 10. These sidewalls can have connecting portions (not shown), such as protrusions (not shown) extending from the plate-like structure of the shell 30 toward one side. These protrusions can be detachably connected to the first support column 322 of the mounting base 32, such as by snapping, plugging, or threading.

[0122] In one or more embodiments of the present application, the plate-like cover 31 can be manufactured using a vacuum forming process, thereby reducing costs. The cover 31 is supported by the first support columns 322, and the base 321 and the cover 31 are connected by the first support columns 322. This not only improves the installation stability of the base 321 and the cover 31, but also prevents the first support columns 322 from completely enclosing the high-voltage components disposed within the housing 30, thereby improving the heat dissipation effect of the high-voltage components disposed within the housing 30.

[0123] In some embodiments, the cover 31 is a flat structure, the first support column 322 extends from the base 321 to the surface of the cover 31 facing the base 321 , and the end of the first support column 322 away from the base 321 is fixed to the cover 31 through a first connecting member 325 .

[0124] It can be understood that the cover plate 31 is a flat plate structure, which is different from a curved plate. The end of the first support column 322 away from the base 321 abuts against the cover plate 31 or penetrates the surface of the cover plate 31 away from the base 321, and can be further fixed by a first connecting member 325. It can be understood that the cover plate 31 is provided with a through hole 311 of a size that matches the size of the first connecting member 325. The first connecting member 325 can specifically be a plastic rivet or screw.

[0125] In one or more embodiments of the present application, the cover plate 31 is a flat plate structure that facilitates the connection between the first support column 322 and the cover plate 31. The flat plate structure of the cover plate 31 is connected to the first support column 322, and the end of the first support column 322 away from the base 321 is fixed to the cover plate 31 by the first connector 325, thereby improving the connection stability between the base 321 and the cover body. The first support column 322 connects and supports the cover plate 31 and the base 321, thereby achieving a stable connection between the cover plate 31 and the base 321 and facilitating heat dissipation of the high-voltage components disposed between the cover plate 31 and the base 321. At the same time, the flat plate structure of the cover plate 31 can be manufactured through a vacuum forming process, thereby achieving the effect of reducing costs and increasing efficiency.

[0126] In some embodiments, the mounting seat 32 further includes a boss 323 , which is disposed on the surface of the base 321 facing the cover 31 ; wherein a portion of the high-voltage components are mounted on the base 321 , and another portion of the high-voltage components are mounted on the boss 323 .

[0127] Specifically, the boss 323 can be understood as a raised portion provided on the base 321 and extending toward the cover 31. The boss 323 and the base 321 can be integrally formed.

[0128] In one or more embodiments of the present application, by placing the high voltage component on the boss 323, the height difference between the high voltage component and the positive relay 331 or the negative relay 332 can be absorbed, so as to facilitate the fixing of the positive relay 331 and the fuse 333, or facilitate the fixing of the negative relay 332 and the shunt 334. Figure 8 In the figure, the fuse 333 is arranged on the boss 323. Since the middle part of the fuse 333 is a cylindrical structure, the fuse 333 is arranged on the boss 323 so that the cylindrical part of the fuse 333 is suspended. On the one hand, the fuse 333 can be stably fixed, reducing the risk of unstable connection caused by the possible rolling of the fuse 333 when it is directly arranged on the base 321; on the other hand, space can be reserved on the base 321 below the fuse 333, which is convenient for setting bolts on the base 321 to fix it to the battery box 10. For example Figure 9 As shown, the effect of setting the diverter 334 on the boss 323 also has a similar effect, that is, the diverter 334 is suspended on the boss 323, so that space can be reserved on the base 321 below the diverter 334, which is convenient for setting bolts on the base 321 to fix it to the battery box 10.

[0129] In some embodiments, as Figure 6 As shown, the mounting base 32 also includes a second support column 324, which is arranged on the surface of the base 321 facing the cover 31 and extends toward the cover 31, and the end of the second support column 324 away from the base 321 is spaced apart from the cover 31; a tab 35 is also provided in the shell 30, one end of the tab 35 is provided on the end surface of the second support column 324 away from the base 321 and connected to the connecting terminal (not marked in the figure), and the other end is connected to the high-voltage component.

[0130] Specifically, the second support columns 324 are used to support the tab 35. The second support columns 324 can be understood as cylindrical bodies disposed on the base 321 and extending toward the cover 31. Specifically, they can be in the shape of cylinders, prisms, or other shapes. In this embodiment, the number of second support columns 324 can range from 3 to 6; in other embodiments, the number of second support columns 324 can be increased as needed.

[0131] The second support column 324 is spaced apart from the cover plate 31 at one end away from the base 321, making it easier to mount other components on the second support column 324 away from the base 321. The second support column 324 supports the tab 35 and the connection terminal, thereby improving the stability of the tab 35 when connected to other components.

[0132] In addition, the connection terminal is disposed at the end of the second support column 324 away from the base 321 , which can reduce the mechanical pressure generated when the connection terminal is connected to other components and the resulting squeezing of the positive relay 331 or the negative relay 332 .

[0133] In some embodiments, see Figures 6 to 8 , one of the shells 30 is a positive pole shell; a positive relay 331, a fuse 333, a first positive pole piece 351 and a second positive pole piece 352 are arranged in the positive pole shell; the first positive pole piece 351 includes a first main section 3511 and a first extension section 3512; the first end of the first main section 3511 is connected to the fuse 333, and the second end is connected to the positive relay 331; one end of the first extension section 3512 is connected to the second end of the first main section 3511, and the other end is fixed to the end face of the second support column 324 away from the base 321 through the front drive positive connection terminal 361a and the rear drive positive connection terminal 362a; one end of the second positive pole piece 352 is connected to the positive relay 331, and the other end is fixed to the end face of the second support column 324 away from the base 321 through the fast charge positive connection terminal 363a.

[0134] Specifically, the first housing 30a can be defined as the positive housing; wherein the positive electrode tab can be understood as the tab 35 connecting the positive relay 331 and other components. Figure 7-Figure 8 , the first main body segment 3511 can be understood as the middle part of the first positive electrode tab 351, and the first extension segment 3512 can be understood as the part of the first positive electrode tab 351 connected to the first main body segment 3511 and extending from one end or both ends of the first main body segment 3511 in a direction away from the first main body segment 3511. In this embodiment, the first end of the first main body segment 3511 and the fuse 333 can be connected specifically by bolts; the second end of the first main body segment 3511 can be understood as the end of the first main body segment 3511 close to the first extension segment 3512; when the first end of the first main body segment 3511 is connected to the fuse 333, the part of the first main body segment 3511 close to the fuse 333 can be set obliquely according to the height dimensions of the positive relay 331 and the fuse 333; or the first bending segment 3513 can also be set at the part of the first main body segment 3511 close to the fuse 333, such as Figure 7 As shown, the portion where the first main body section 3511 is connected to the fuse 333 is bent to facilitate the connection between the first main body section 3511 and the fuse 333 .

[0135] The other end of the first extension section 3512 can be understood as the end of the first extension section 3512 away from the first main section 3511. This end of the first extension section 3512 away from the first main section 3511 is secured to the end surface of the second support column 324 away from the base 321 via a front-wheel drive positive connection terminal 361a and a rear-wheel drive positive connection terminal 362a. Specifically, the end of the first extension section 3512 away from the first main section 3511 can be secured to the end surface of the second support column 324 away from the base 321 via bolts. The front-wheel drive positive connection terminal 361a can be used to connect to the front-wheel drive positive electrode of the battery assembly 100. For example, the front-wheel drive positive connection terminal 361a can distribute high voltage power from the battery assembly 100 to a front-wheel drive motor controller (not shown), thereby driving the front-wheel drive motor (not shown) of the vehicle 1000 (applicable to front-wheel drive or four-wheel drive vehicles). When the vehicle 1000 accelerates, current is transmitted to the front-wheel drive motor through the front-wheel drive positive connection terminal 361a. The rear-wheel drive positive connection terminal 362a can be connected to the rear-wheel drive positive terminal of the battery device 100 to power the rear-wheel drive motor (not shown), driving the rear wheels of the vehicle 1000 (or the rear wheels of an all-wheel drive vehicle), and cooperating with the front-wheel drive to achieve dynamic torque distribution. Both the front-wheel drive positive connection terminal 361a and the rear-wheel drive positive connection terminal 362a can be pin-and-socket structures and secured with bolts. They can be made of a copper alloy (e.g., H62 brass, phosphor bronze, etc.) to ensure high electrical conductivity (brass has a conductivity of approximately 30% IACS, while phosphor bronze has a higher conductivity), thus meeting the requirements of high-voltage and high-current transmission.

[0136] One end of the second positive electrode tab 352 is connected to the positive relay 331, and the other end is fixed to the end face of the second support column 324 away from the base 321 through the fast charging positive connection terminal 363a. The second positive electrode tab 352 and the end face of the second support column 324 away from the base 321 can be further fixed by bolts. The fast charging positive connection terminal 363a can be directly connected to the high-voltage positive pole of the fast charging pile to receive the high-voltage direct current of the fast charging pile, and is connected to the positive pole of the battery device 100 through the fast charging positive relay 331 to quickly charge several battery cells 20. The specific structure and materials used in the fast charging positive connection terminal 363a can be the same as those of the aforementioned front drive positive connection terminal 361a and rear drive positive connection terminal 362a, and will not be repeated here.

[0137] Positive relay 331 is mounted on base 321, which can be understood as being directly mounted on base 321. Positive relay 331 can be mounted and fixed to base 321 via bolts. Fuse 333 is suspended in the air via boss 323. Suspended in this context means that fuse 333 is not in contact with base 321 and has a gap between them. Fuse 333 can be fixed to the surface of boss 323 away from base 321 via bolts.

[0138] In one or more embodiments of the present application, the tab 35 connection offers advantages over wire connections, including high current carrying capacity, low resistance and efficient heat dissipation, strong structural stability, resistance to vibration, expansion, corrosion, and long life. By configuring the first positive tab 351 to include a first main section 3511 and a first extension section 3512, it is possible to facilitate connection of the two ends of the first positive tab 351 to the fuse 333 and the positive relay 331, respectively, while also conserving installation space within the positive electrode housing.

[0139] In some embodiments, the positive electrode housing includes a plurality of second support columns 324 arranged at intervals, and the front drive positive connection terminal 361a, the rear drive positive connection terminal 362a and the fast charge positive connection terminal 363a are arranged in a one-to-one correspondence with the plurality of second support columns 324.

[0140] In one or more embodiments of the present application, the positive electrode housing includes multiple second support columns 324 spaced apart to facilitate better heat dissipation within the positive electrode housing. The front drive positive connection terminal 361a, rear drive positive connection terminal 362a, and fast charge positive connection terminal 363a are arranged in a one-to-one correspondence with the multiple second support columns 324, so that the front drive positive connection terminal 361a, rear drive positive connection terminal 362a, and fast charge positive connection terminal 363a each have their own second support column 324 for support, improving support and connection effects.

[0141] In some embodiments, see Figures 9 to 11 , one of the shells 30 is a negative pole shell; a negative relay 332, a shunt 334, a first negative pole piece 353 and a second negative pole piece 354 are arranged in the negative pole shell; the first negative pole piece 353 includes a second main body section 3531 and a second extension section 3532; the first end of the second main body section 3531 is connected to the shunt 334, and the second end is connected to the negative relay 332; one end of the second extension section 3532 is connected to the second end of the second main body section 3531, and the other end is fixed to the end face of the second support column 324 away from the base 321 through the front drive negative connection terminal 361b and the rear drive negative connection terminal 362b; one end of the second negative pole piece 354 is connected to the negative relay 332, and the other end is fixed to the end face of the second support column 324 away from the base 321 through the fast charge negative connection terminal 363b.

[0142] Specifically, the second housing 30b can be defined as a negative housing. The negative tab can be understood as the tab 35 connecting the negative relay 332 and other components.

[0143] See also Figure 10-11 , where the second main segment 3531 can be understood as the middle part of the first negative electrode tab 353, and the second extension segment 3532 can be understood as the part of the first negative electrode tab 353 that is connected to the second main segment 3531 and extends from one end or both ends of the second main segment 3531 away from the second main segment 3531.

[0144] The second end of the second main section 3531 can be understood as the end of the second main section 3531 close to the second extension section 3532; when the first end of the second main section 3531 is connected to the diverter 334, the portion of the second main section 3531 close to the diverter 334 can be arranged obliquely according to the height of the negative relay 332 and the diverter 334; or a second bending section 3533 can be provided in the portion of the second main section 3531 close to the diverter 334, such as Figure 10 As shown, the portion where the second main body section 3531 and the diverter 334 are connected is bent to facilitate the connection between the second main body section 3531 and the diverter 334 .

[0145] The other end of the second extension section 3532 can be understood as the end of the second extension section 3532 that is distal to the second main section 3531. The end of the front-drive negative connection terminal 361b distal to the second extension section 3532 can be connected to the front-drive negative terminal of the battery assembly 100, providing a high-voltage negative terminal for the front-drive motor, for example, to drive the front-drive motor of the vehicle 1000 and perform energy recovery. The end of the rear-drive negative connection terminal 362b distal to the second extension section 3532 can be connected to the rear-drive negative terminal of the battery assembly 100, powering the rear-drive motor, driving the rear wheels of the vehicle 1000 (or the rear wheels of an all-wheel drive vehicle), and coordinating with the front-drive motor to achieve dynamic torque distribution.

[0146] The fast charging negative connection terminal 363b is used to receive the negative current of the fast charging pile, and cooperates with the fast charging positive connection terminal 363a to complete high-voltage DC charging. When the fast charging negative terminal is connected to the negative pole of the battery device 100, the fast charging positive connection terminal 363a is synchronously closed to form a charging circuit.

[0147] In one or more embodiments of the present application, the tab 35 connection offers advantages over wire connections, including high current carrying capacity, low resistance, efficient heat dissipation, strong structural stability, resistance to vibration, expansion, corrosion, and long life. By configuring the first negative tab 353 to include a second main section 3531 and a second extension section 3532, it is possible to facilitate connection of the two ends of the first negative tab 353 to the shunt 334 and the negative relay 332, respectively, while also conserving installation space within the negative electrode housing.

[0148] In some embodiments, the negative electrode housing includes a plurality of second support columns 324 arranged at intervals, and the front drive negative connection terminal 361b, the rear drive negative connection terminal 362b and the fast charge negative connection terminal 363b are arranged in a one-to-one correspondence with the plurality of second support columns 324.

[0149] In one or more embodiments of the present application, the negative electrode housing includes multiple second support columns 324 spaced apart to facilitate better heat dissipation within the negative electrode housing. The front drive negative connection terminal 361b, rear drive negative connection terminal 362b, and fast charge negative connection terminal 363b are arranged in a one-to-one correspondence with the multiple second support columns 324, so that the front drive negative connection terminal 361b, rear drive negative connection terminal 362b, and fast charge negative connection terminal 363b each have their own second support column 324 for support, improving support and connection effects.

[0150] In some embodiments, the negative electrode housing includes two bosses 323 ; the shunt 334 is suspended by the two bosses 323 ; and the corners of the shunt 334 and one of the bosses 323 both have a cut corner 37 .

[0151] Specifically, the negative relay 332 is disposed on the base 321, which can be understood as being directly mounted on the base 321 via bolts. The shunt 334 is suspended in the air via two bosses 323. The suspended arrangement here can be understood as the shunt 334 not being in contact with the base 321 and having a gap between the shunt 334 and the base 321. The shunt 334 can be fixed to the surface of the bosses 323 away from the base 321 via bolts.

[0152] See also Figure 9 The corner of the diverter 334 and the corner of one of the bosses 323 both have a chamfer 37. The chamfer 37 of the corner of the diverter 334 and the chamfer 37 of the corner of the boss 323 can be aligned.

[0153] In one or more embodiments of the present application, the two bosses 323 of the negative electrode housing can be spaced apart to facilitate heat dissipation for the multiple high-voltage components within the negative electrode housing. By providing a chamfer 37 at the corner of the diverter 334 and the corner of one of the bosses 323, the probability of the diverter 334 being installed upside down is reduced, facilitating quick and accurate installation of the diverter 334.

[0154] In some embodiments, the base 321, the boss 323, the first support column 322 and the second support column 324 are integrally formed. The integral forming method can improve the connection stability of the base 321, the boss 323, the first support column 322 and the second support column 324, while improving production efficiency.

[0155] In some embodiments, see Figure 4 The battery device 100 further includes a bracket 40 , the shell 30 is disposed on the bracket 40 , and at least two shells 30 are installed in the battery device 100 through the bracket 40 .

[0156] Specifically, the bracket 40 can be located outside the housing 30 and support the housing 30. The housing 30 and the bracket 40 can be detachably connected, for example, by bolts. At least two housings 30 are mounted within the battery device 100 via the bracket 40. This can be understood as at least two housings 30 being mounted on the bracket 40, and the at least two housings 30 being mounted within the battery device 100 via the bracket 40. Specifically, the at least two housings 30 can be mounted on a mounting beam (not shown) of the battery device 100 via the bracket 40. The structure of the bracket 40 can be flexibly designed based on the specific structure and size of the housing 30.

[0157] In one or more embodiments of the present application, at least two shells 30 are installed in the battery device 100 through the bracket 40, which can facilitate the installation and fixation of the shells 30.

[0158] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A battery device, characterized in that: include: The battery box has an energy compartment and a control compartment; A plurality of battery cells are arranged in the energy compartment; At least two housings and a plurality of high-voltage components are disposed in the control compartment; Wherein, at least two high-voltage components are arranged in each of the housings.

2. The battery device according to claim 1, wherein: The high-voltage components include a positive relay, a negative relay, a fuse or a shunt; at least the positive relay, the negative relay, the fuse and the shunt are provided in the control compartment; The positive relay is connected to the fuse, and the positive relay is arranged in one of the shells; the negative relay is connected to the shunt, and the negative relay is arranged in the other shell.

3. The battery device according to claim 2, characterized in that There are two positive relays, and both of the positive relays are connected to the fuse; and / or There are two negative relays, and both of the two negative relays are connected to the shunt.

4. The battery device according to claim 2, wherein: The battery device satisfies at least one of conditions a and b: a. The fuse and the positive relay are arranged in the same housing; or the fuse is arranged outside the housing; b. The shunt and the negative relay are arranged in the same housing; or the shunt is arranged outside the housing.

5. The battery device according to any one of claims 1 to 4, characterized in that: The shell includes a top wall, a bottom wall and side walls that are connected to each other, and the side walls of the shell form a hollow portion, through which at least part of the high-voltage component is exposed to the outside of the shell.

6. The battery device according to any one of claims 1 to 4, characterized in that: The housing comprises: The mounting base comprises a base and a first support column arranged on the base; The cover plate is detachably connected to an end of the first support column away from the mounting seat.

7. The battery device according to claim 6, characterized in that The cover plate is a flat plate structure. The first support column extends from the base to the surface of the cover plate facing the base. An end of the first support column away from the base is fixed to the cover plate via a first connector.

8. The battery device according to claim 6, characterized in that The mounting base further comprises: A boss is provided on a surface of the base close to the cover plate; Part of the high-voltage components are mounted on the base, and another part of the high-voltage components are mounted on the boss.

9. The battery device according to claim 6, characterized in that The mounting base further comprises: a second support column, disposed on a surface of the base facing the cover plate and extending toward the cover plate, wherein an end of the second support column away from the base is spaced apart from the cover plate; A tab is further provided in the shell, one end of the tab is provided on the end surface of the second support column away from the base, and the other end is connected to the high-voltage element.

10. The battery device according to claim 9, characterized in that One of the shells is a positive pole shell; a positive relay, a fuse, a first positive pole piece and a second positive pole piece are arranged in the positive pole shell; the first positive pole piece includes a first main section and a first extension section; the first end of the first main section is connected to the fuse, and the second end is connected to the positive relay; one end of the first extension section is connected to the second end of the first main section, and the other end is fixed to the end face of the second support column away from the base through the front drive positive connection terminal and the rear drive positive connection terminal; one end of the second positive pole piece is connected to the positive relay and the connection terminal, and the other end is fixed to the end face of the second support column away from the base through the fast charge positive connection terminal.

11. The battery device according to claim 10, characterized in that The positive electrode housing includes a plurality of second support columns arranged at intervals, and the front drive positive connection terminal, the rear drive positive connection terminal and the fast charge positive connection terminal are arranged in a one-to-one correspondence with the plurality of second support columns.

12. The battery device according to claim 9, wherein: One of the shells is a negative pole shell; a negative relay, a shunt, a first negative pole piece and a second negative pole piece are arranged in the negative pole shell; the first negative pole piece includes a second main section and a second extension section; the first end of the second main section is connected to the shunt, and the second end is connected to the negative relay; one end of the second extension section is connected to the second end of the second main section, and the other end is fixed to the end face of the second support column away from the base through the front drive negative connection terminal and the rear drive negative connection terminal; one end of the second negative pole piece is connected to the negative relay, and the other end is fixed to the end face of the second support column away from the base through the fast charge negative connection terminal.

13. The battery device according to claim 12, characterized in that The negative electrode housing includes a plurality of second support columns arranged at intervals, and the front drive negative connection terminal, the rear drive negative connection terminal and the fast charge negative connection terminal are arranged in a one-to-one correspondence with the plurality of second support columns.

14. The battery device according to claim 12, wherein: The negative electrode shell includes two bosses; the shunt is suspended by the two bosses; the corner of the shunt and the corner of one of the bosses both have a cut angle.

15. The battery device according to claim 1 or 2, characterized in that: The battery device further comprises: The housing is arranged on the bracket, and at least two of the housings are installed in the battery device through the bracket.

16. An electrical device, characterized in that: include: A battery device as claimed in any one of claims 1 to 15.

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