Battery device and electric device

Abstract

The utility model provides a battery device and a power utilization device. The battery device comprises a battery monomer; the supporting plate is provided with a first through hole and a second through hole, and the first through hole and the second through hole are symmetrically arranged about a first center line on the supporting plate; the electronic device comprises a main body part, a first convex lug and a second convex lug, the first convex lug and the second convex lug are connected to the main body part, the first convex lug is provided with a first mounting hole, the second convex lug is provided with a second mounting hole, and in the thickness direction of the supporting plate, the orthographic projection of the first convex lug on the supporting plate is a first projection, and the orthographic projection of the second convex lug on the supporting plate is a second projection; the first projection and the second projection are asymmetrically arranged about the first center line; the fool-proof piece is arranged on the supporting plate; when the first mounting hole corresponds to the first through hole and the second mounting hole corresponds to the second through hole, the fool-proof piece avoids the electronic device; and when the first mounting hole corresponds to the second through hole and the second mounting hole corresponds to the first through hole, the fool-proof piece interferes with at least one of the first lug and the second lug.

Description

Technical Field

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

[0002] With the rapid development of new energy technologies, battery devices have been widely used in electronic equipment, electric vehicles, electric two-wheeled vehicles, power tools, etc. As the application of battery devices becomes more and more extensive, higher requirements are placed on the reliability of battery devices. Utility Model Content

[0003] The embodiments of the present application provide a battery device and an electrical device to improve reliability.

[0004] In a first aspect, an embodiment of the present application provides a battery device, comprising: a battery cell; a support plate, provided with a first through hole and a second through hole, the first through hole and the second through hole being symmetrically arranged about a first center line on the support plate; an electronic device, electrically connected to the battery cell, the electronic device comprising a main body, a first lug connected to the main body and a second lug, the first lug being provided with a first mounting hole for connecting to the first through hole, the second lug being provided with a second mounting hole for connecting to the second through hole, along the thickness direction of the support plate, the orthographic projection of the first lug on the support plate is a first projection, the orthographic projection of the second lug on the support plate is a second projection, the first projection and the second projection being asymmetrically arranged about the first center line; an anti-foolproofing member, provided on the support plate; wherein, when the first mounting hole corresponds to the first through hole and the second mounting hole corresponds to the second through hole, the anti-foolproofing member avoids the electronic device; when the first mounting hole corresponds to the second through hole and the second mounting hole corresponds to the first through hole, the anti-foolproofing member interferes with at least one of the first lug and the second lug.

[0005] By arranging an anti-foolproofing piece on the support plate, when the first mounting hole corresponds to the first through hole and the second mounting hole corresponds to the second through hole, the electronic device is correctly installed, and the anti-foolproofing piece avoids the electronic device, so that the electronic device can be smoothly installed on the support plate; when the first mounting hole corresponds to the second through hole and the second mounting hole corresponds to the first through hole, the electronic device is incorrectly installed, and the anti-foolproofing piece interferes with at least one of the first lug and the second lug, and the lug structure on the electronic device is used to block the electronic device from being installed on the support plate; thereby, the probability of incorrect installation of the electronic device can be reduced, thereby improving the installation reliability of the electronic device, and then improving the quality and reliability of the battery device, while reducing the detection and rework costs in the production process.

[0006] In some embodiments, the first lug and the second lug are disposed on opposite sides of the main body portion along a first direction, and the first direction is perpendicular to the thickness direction of the support plate.

[0007] The electronic device includes two opposite lugs. By means of the anti-fooling member, the probability of reverse installation of the electronic device can be reduced, thereby improving the installation reliability.

[0008] In some embodiments, the support plate has a first region, the first region is symmetrically disposed with respect to the first projection about the first center line, and the anti-fooling member is located outside the second projection and at least partially inside the first region.

[0009] By providing the anti-fooling member in the first region on the support plate that is symmetric with respect to the first center line about the first projection, when the electronic device is reversely installed, the anti-fooling member can interfere with the first lug to prevent the electronic device from being installed on the support plate.

[0010] In some embodiments, the first region covers the second projection and has an extended region that extends beyond the second projection; the anti-fooling member is at least partially located within the extended region.

[0011] By the first region covering the second projection and having an extended region that extends beyond the second projection, and the anti-fooling member being at least partially located within the extended region, the extended portion of the first lug beyond the second lug can be utilized, and the anti-fooling member can be provided in the region on the support plate that is symmetric with respect to the first center line about this extended portion, thereby reliably preventing the incorrect installation of the electronic device.

[0012] In some embodiments, the anti-fooling member is detachably disposed on the support plate.

[0013] By the anti-fooling member being detachably disposed on the support plate, after the correct installation of the electronic device is completed, the anti-fooling member can be removed for reuse, thereby reducing costs.

[0014] In some embodiments, the anti-fooling member is snap-fitted to the support plate.

[0015] By the anti-fooling member being snap-fitted to the support plate, it is convenient for quick installation and removal, and the assembly efficiency is improved.

[0016] In some embodiments, the support plate has a first surface and a second surface that are oppositely disposed along its thickness direction. The support plate is provided with a third through hole that penetrates the first surface and the second surface. The electronic device is disposed on the first surface; the anti-fooling member includes a limiting block and a clamping claw connected to the limiting block. The clamping claw passes through the third through hole and abuts against the second surface, and the limiting block abuts against the first surface.

[0017] The anti-fooling part includes a limiting block and a claw connected to the limiting block. The claw passes through the third through-hole and abuts against the second surface, and the limiting block abuts against the first surface. The anti-fooling part is fixed in the support plate in the form of an insert, which can be quickly installed and firmly fixed to the support plate, improving reliability.

[0018] In some embodiments, the third through-hole is an oblong hole.

[0019] The length dimension of the oblong hole is greater than the width dimension. When the anti-fooling part is installed in the oblong hole, it can limit the rotation of the anti-fooling part, further improving reliability.

[0020] In some embodiments, the support plate has a first surface and a second surface oppositely arranged along its thickness direction. The support plate is provided with a third through-hole penetrating the first surface and the second surface, and the electronic device is arranged on the first surface; the anti-fooling part is a stud, and the stud is threadedly connected to the third through-hole and protrudes from the first surface.

[0021] The anti-fooling part is selected as a standard part stud, which will not additionally increase the production, processing and assembly processes, thus reducing costs.

[0022] In some embodiments, the support plate has a first surface and a second surface oppositely arranged along its thickness direction, and the electronic device is arranged on the first surface; the anti-fooling part is a flanging part integrally formed with the support plate, and the flanging part protrudes from the first surface.

[0023] The anti-fooling part is formed by folding the edge of the support plate itself without adding additional components, thus reducing costs.

[0024] In some embodiments, the first lug is connected to the support plate by a first fastener passing through the first mounting hole and the first through-hole, and the second lug is connected to the support plate by a second fastener passing through the second mounting hole and the second through-hole.

[0025] Thereby, the connection stability of the electronic device can be improved.

[0026] In some embodiments, the battery device further includes a high-voltage box, and the high-voltage box includes the electronic device.

[0027] Thereby, the reliability during the operation of the high-voltage box can be improved.

[0028] In a second aspect, an electrical device provided by an embodiment of the present application includes the battery device of any of the above embodiments.

[0029] Since the electronic device in the battery device can be correctly installed on the support plate, thereby improving the reliability of the battery device, the power consumption reliability of the electrical device including the battery device is also improved. Brief Description of the Drawings

[0030] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope.

[0031] Figure 1 Structural schematic diagram of a vehicle provided by some embodiments of the present application;

[0032] Figure 2 Structural schematic diagram of a box body provided by some embodiments of the present application;

[0033] Figure 3 Structural schematic diagram of a battery cell provided by some embodiments of the present application;

[0034] Figure 4 Internal structural schematic diagram of a box body provided by some embodiments of the present application;

[0035] Figure 5 Stereogram of a correctly installed electronic device provided by some embodiments of the present application;

[0036] Figure 6 Top view of a correctly installed electronic device provided by some embodiments of the present application;

[0037] Figure 7 Structural schematic diagram of a support plate provided by some embodiments of the present application;

[0038] Figure 8 Stereogram of an incorrectly installed electronic device provided by some embodiments of the present application;

[0039] Figure 9 Top view of an incorrectly installed electronic device provided by some embodiments of the present application;

[0040] Figure 10 Projection schematic diagram of an electronic device on a support plate provided by some embodiments of the present application;

[0041] Figure 11 Side view of a correctly installed electronic device provided by some embodiments of the present application;

[0042] Figure 12 Stereogram of a correctly installed electronic device provided by some other embodiments of the present application;

[0043] Figure 13 Top view of a correctly installed electronic device provided by some other embodiments of the present application;

[0044] Figure 14Stereogram of the electronic device when incorrectly installed according to other embodiments of the present application;

[0045] Figure 15 Top view of the electronic device when incorrectly installed according to other embodiments of the present application;

[0046] Figure 16 Stereogram of the electronic device when correctly installed according to still other embodiments of the present application;

[0047] Figure 17 Schematic diagram of the electronic device when correctly installed and incorrectly installed according to other embodiments of the present application, wherein the solid line represents correct installation and the dashed line represents incorrect installation;

[0048] Figure 18 Schematic diagram of the electronic device when correctly installed and incorrectly installed according to other embodiments of the present application, wherein the solid line represents correct installation and the dashed line represents incorrect installation.

[0049] Icon:

[0050] 1000 - Vehicle; 100 - Battery device; 101 - Accommodating space; 200 - Controller; 300 - Motor;

[0051] 10 - Box body; 11 - First sub - box body; 12 - Second sub - box body;

[0052] 20 - Battery cell; 21 - Outer shell; 22 - Electrode assembly; 23 - Electrode terminal; 211 - Shell; 212 - End cover;

[0053] 221 - Body part; 222 - Tab;

[0054] 30 - Support plate; 31 - First through - hole; 32 - Second through - hole; 33 - Third through - hole; 301 - First surface; 302 - Second surface;

[0055] 40 - Electronic device; 41 - First mounting hole; 42 - Second mounting hole; 43 - Main body part; 44 - First lug; 44a - First projection; 45 - Second lug; 45a - Second projection;

[0056] 50 - Anti - misassembly part; 50a - First area; 50b - Extended area; 51 - Limit block; 52 - Claw;

[0057] 60 - High - voltage box;

[0058] 71 - First fastener;

[0059] 72 - Second fastener. Detailed implementation manners

[0060] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0061] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in this application are used to distinguish different objects and not to describe a specific order or primary-secondary relationship.

[0062] Referring to "embodiments" in this application means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0063] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", and "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0065] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components shown in the accompanying drawings in the embodiments of this application, as well as the overall thickness, length, width, etc. of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0066] The battery device mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include a plurality of battery cells, and the plurality of battery cells are connected in series, parallel or in a hybrid connection through a busbar component.

[0067] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells; as an example, the battery cell assembly may be a battery module, and the battery module is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells with cable ties.

[0068] In some embodiments, the battery device may be a battery pack, and the battery pack includes a box body and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box body.

[0069] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box body by fixing the battery module in the box body.

[0070] As an example, the battery cell assembly may also be accommodated in the box body by directly fixing a plurality of battery cells to the box body.

[0071] As an example, the box body may include a first sub-box body and a second sub-box body. The first sub-box body and the second sub-box body are snapped together so that a closed space is formed inside the box body to accommodate the battery cell assembly. The "closed" here means covering or closing, which may be sealed or non-sealed. The first sub-box body may be a top cover or a bottom plate.

[0072] As an example, the box body may include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected to the frame so that a closed space is formed inside the box body to accommodate the battery cell assembly.

[0073] As an example, the box body may be part of the chassis structure of a vehicle. For example, the top cover of the box body may become at least a part of the floor of the vehicle, or the frame of the box body may become at least a part of the cross beam and longitudinal beam of the vehicle.

[0074] In some embodiments, the battery device refers to an energy storage device, and the energy storage device includes a box body, and a door is provided on at least one side of the box body. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0075] In the embodiments of the present application, the battery cell may be a secondary battery, and the secondary battery refers to a battery cell that can activate the active material and continue to be used after being charged after the battery cell discharges.

[0076] The battery cell may be, but is not limited to, a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc.

[0077] A battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and extracted back and forth between the positive electrode and the negative electrode. The separator is disposed between the positive electrode and the negative electrode, which can prevent short - circuit between the positive and negative electrodes and at the same time allow active ions to pass through.

[0078] In some embodiments, the positive electrode may be a positive electrode sheet, and the positive electrode sheet may include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.

[0079] As an example, the positive electrode current collector has two surfaces opposite to each other in its own thickness direction, and the positive electrode active material is disposed on any one or both of the two opposite surfaces of the positive electrode current collector.

[0080] As an example, the positive electrode current collector may be a metal foil or a composite current collector. For example, as the metal foil, stainless steel with silver plating on the surface, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. may be used. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (such as aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0081] As an example, the positive electrode active material may include at least one of the following materials: lithium - containing phosphate, lithium transition metal oxide, and their respective modified compounds. However, the present application is not limited to these materials, and other conventional materials that can be used as battery positive electrode active materials may also be used.

[0082] In some embodiments, the negative electrode may be a negative electrode sheet, and the negative electrode sheet may include a negative electrode current collector.

[0083] As an example, the negative electrode current collector may be a metal foil or a composite current collector. For example, as the metal foil, aluminum with silver plating on the surface, stainless steel with silver plating on the surface, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. may be used.

[0084] In some embodiments, the negative electrode current collector has two surfaces opposite to each other in its own thickness direction, and the negative electrode active material is disposed on any one or both of the two opposite surfaces of the negative electrode current collector.

[0085] As an example, the negative electrode active material can be the negative electrode active material for batteries well-known in the art. As an example, the negative electrode active material can include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, and lithium titanate, etc. The silicon-based materials can be selected from at least one of elemental silicon, silicon oxides, silicon-carbon composites, silicon-nitrogen composites, and silicon alloys. The tin-based materials can be selected from at least one of elemental tin, tin oxides, and tin alloys. However, the present application is not limited to these materials, and other conventional materials that can be used as the negative electrode active material of the battery can also be used. These negative electrode active materials can be used alone or in combination of two or more.

[0086] In some embodiments, the separator is a separator membrane. The present application does not particularly limit the type of the separator membrane, and any well-known porous structure separator membrane with good chemical stability and mechanical stability can be selected.

[0087] As an example, the main material of the separator membrane can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramics. The separator membrane can be a single-layer film or a multi-layer composite film, without particular limitation. When the separator membrane is a multi-layer composite film, the materials of each layer can be the same or different, without particular limitation. The separator can be a single component located between the positive and negative electrodes, or attached to the surfaces of the positive and negative electrodes.

[0088] In some embodiments, the separator is a solid electrolyte. The solid electrolyte is disposed between the positive electrode and the negative electrode, and simultaneously functions to transport ions and isolate the positive and negative electrodes.

[0089] In some embodiments, the electrode assembly is a wound structure. The positive electrode sheet and the negative electrode sheet are wound into a wound structure.

[0090] In some embodiments, the electrode assembly is a stacked structure.

[0091] In some embodiments, the battery cell can include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell), or an aluminum plastic film, etc.

[0092] In some embodiments, the housing includes an end cap and a housing body. The housing body is provided with an opening, and the end cap closes the opening to form a sealed space for accommodating substances such as the electrode assembly and the electrolyte. The housing body can be provided with one or more openings. The end cap can also be provided with one or more.

[0093] In some embodiments, at least one electrode terminal is provided on the outer shell, and the electrode terminal is electrically connected to the tab of the electrode assembly. The electrode terminal can be directly connected to the tab or indirectly connected to the tab through an adapter. The electrode terminal can be provided on the end cap or on the housing.

[0094] In some embodiments, an explosion-proof valve is provided on the outer shell. The explosion-proof valve is used to release the internal pressure of the battery cell.

[0095] In some embodiments, the outer shell can be a sealed structure or a non-sealed structure. As an example, when the outer shell is a sealed structure, the outer shell can protect the electrode assembly and prevent functions such as electrolyte leakage. When the outer shell is a non-sealed structure, the outer shell can protect the electrode assembly, and a sealing bag can be further included between the outer shell and the electrode assembly. The sealing bag is used to encapsulate the electrode assembly, electrolyte, etc. Specifically, the sealing bag can be a bag-shaped insulating part or an aluminum-plastic film.

[0096] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, a multi-prismatic battery, and the multi-prismatic battery is, for example, a hexagonal-prismatic battery, etc.

[0097] The development of battery device technology needs to consider various design factors simultaneously. For example, performance parameters such as energy density, discharge capacity, charge-discharge rate, etc. In addition, the reliability of the battery device also needs to be considered.

[0098] There are many electronic devices in the battery device. According to design requirements, these electronic devices are sometimes installed on a support plate (such as a sheet metal bracket) in a bulk manner. For example, during the installation of the high-voltage box, the correct installation of electronic devices such as relays is crucial. In the case of bulk installation, it is easy to cause incorrect installation of electronic devices by manual operation. Especially when the appearance design of the electronic device has good symmetry, it is more likely to cause incorrect installation. For example, there is a situation where the electronic device is installed backwards. Incorrect installation may cause abnormal circuit functions of the high-voltage box and even lead to safety hazards such as short circuits and overloads, seriously affecting the quality and reliability of the battery device, and at the same time increasing the detection and rework costs during the production process.

[0099] In this regard, the present application provides a battery device, comprising: a battery cell; a support plate, provided with a first through hole and a second through hole, the first through hole and the second through hole being symmetrically arranged about a first center line on the support plate; an electronic device, electrically connected to the battery cell, the electronic device comprising a main body, a first lug connected to the main body, and a second lug, the electronic device being provided with a first mounting hole for connecting to the first through hole, the second lug being provided with a second mounting hole for connecting to the second through hole, along the thickness direction of the support plate, the orthographic projection of the first lug on the support plate is a first projection, the orthographic projection of the second lug on the support plate is a second projection, the first projection and the second projection being asymmetrically arranged about the first center line; an anti-foolproofing member, provided on the support plate; wherein, when the first mounting hole corresponds to the first through hole and the second mounting hole corresponds to the second through hole, the anti-foolproofing member avoids the electronic device; when the first mounting hole corresponds to the second through hole and the second mounting hole corresponds to the first through hole, the anti-foolproofing member interferes with at least one of the first lug and the second lug.

[0100] When the first mounting hole corresponds to the first through hole and the second mounting hole corresponds to the second through hole, the electronic device is correctly installed and the fool-proofing piece avoids the electronic device so that the electronic device can be smoothly installed on the support plate; by arranging the fool-proofing piece on the support plate, when the first mounting hole corresponds to the second through hole and the second mounting hole corresponds to the first through hole, the electronic device is incorrectly installed, the fool-proofing piece interferes with at least one of the first lug and the second lug, and the lug structure on the electronic device is used to prevent the electronic device from being installed in place; thereby, the probability of incorrect installation of electronic devices can be reduced, thereby improving the reliability of electronic device installation, and then improving the quality and reliability of the battery device, while reducing the detection and rework costs during the production process.

[0101] The battery cells and battery devices disclosed in the embodiments of the present application can be used in, but not limited to, electrical devices such as vehicles, ships, or aircraft. The power supply system of the electrical device can be composed of the battery cells and battery devices disclosed in the present application.

[0102] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using battery cells and battery devices, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0103] 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.

[0104] Reference Figure 1, the vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is disposed inside the vehicle 1000. The battery device 100 can be disposed at the bottom, head or tail of the vehicle 1000. The battery device 100 can be used for power supply of the vehicle 1000. For example, the battery device 100 can be used as an operating power source of the vehicle 1000 for the circuit system of the vehicle 1000, such as for the working power requirements during starting, navigation and running of the vehicle 1000.

[0105] The vehicle 1000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300. For example, it is used for the working power requirements during starting, navigation and driving of the vehicle 1000.

[0106] In some embodiments of the present application, the battery device 100 can not only be used as an operating power source of the vehicle 1000, but also be used as a driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0107] Referring to Figure 2 , the battery device 100 includes a box body 10 and battery cells 20. The battery cells 20 are accommodated in the box body 10. Wherein, the box body 10 is used to provide an accommodation space for the battery cells 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 may include a first sub-box body 11 and a second sub-box body 12. The first sub-box body 11 and the second sub-box body 12 are covered with each other, and the first sub-box body 11 and the second sub-box body 12 jointly define an accommodation space 101 for accommodating the battery cells 20. The second sub-box body 12 can be a hollow structure with one end open, and the first sub-box body 11 can be a plate-like structure. The first sub-box body 11 covers the open side of the second sub-box body 12 so that the first sub-box body 11 and the second sub-box body 12 jointly define the accommodation space; the first sub-box body 11 and the second sub-box body 12 can also both be hollow structures with one side open, and the open side of the first sub-box body 11 covers the open side of the second sub-box body 12.

[0108] In the battery device 100, there may be multiple battery cells 20. The multiple battery cells 20 can be connected in series, in parallel, or in a combination of series and parallel. A combination of series and parallel means that among the multiple battery cells 20, there are both series connections and parallel connections. The multiple battery cells 20 can be directly connected in series, in parallel, or in a combination of series and parallel together, and then the whole formed by the multiple battery cells 20 is accommodated in a box body; of course, the battery device 100 can also be such that multiple battery cells 20 are first connected in series, in parallel, or in a combination of series and parallel to form a battery module form, and then multiple battery modules are connected in series, in parallel, or in a combination of series and parallel to form a whole and are accommodated in a box body. The battery device 100 can also include other structures. For example, the battery device 100 can also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0109] Referring to Figure 3 , the battery cell 20 includes a housing 21, an electrode assembly 22, and other functional components. The housing 21 includes a casing 211 and an end cap 212. The casing 211 has an opening, and the end cap 212 closes the opening to isolate the internal environment of the battery cell 20 from the external environment.

[0110] The casing 211 is a component for cooperating with the end cap 212 to form the internal environment of the battery cell 20. Among them, the formed internal environment can be used to accommodate the electrode assembly 22, the electrolyte, and other components. The casing 211 and the end cap 212 can be independent components. The casing 211 can be of various shapes and various sizes. Specifically, the shape of the casing 211 can be determined according to the specific shape and size of the electrode assembly 22. The material of the casing 211 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc.

[0111] The end cap 212 is a component that covers the opening of the casing 211 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 212 can be adapted to the shape of the casing 211 to cooperate with the casing 211. Optionally, the end cap 212 can be made of a material with a certain hardness and strength (such as aluminum alloy). In this way, the end cap 212 is not easily deformed when being squeezed or collided, so that the battery cell 20 can have a higher structural strength and the reliability can also be improved. Functional components such as electrode terminals 23 can be provided on the end cap 212. The electrode terminal can be used for electrical connection with the electrode assembly to output or input the electric energy of the battery cell. The material of the end cap 212 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. The embodiments of the present application do not make special restrictions on this. In some embodiments, an insulating structure can also be provided on the inner side of the end cap 212. The insulating structure can be used to isolate the electrical connection components in the casing 211 from the end cap 212 to reduce the risk of short circuit. Exemplarily, the insulating structure can be plastic, rubber, etc.

[0112] The electrode assembly 22 is a component in the battery cell 20 where an electrochemical reaction occurs. One or more electrode assemblies 22 may be included in the housing 211. The electrode assembly 22 is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet, and the separator is used to separate the positive electrode sheet and the negative electrode sheet to avoid short circuits between the positive electrode sheet and the negative electrode sheet. The parts of the positive electrode sheet and the negative electrode sheet with active materials constitute the main body 221 of the electrode assembly 22, and the parts of the positive electrode sheet and the negative electrode sheet without active materials each constitute a tab 222. The positive tab and the negative tab may be located together at one end of the main body 221 or respectively at both ends of the main body 221.

[0113] The following reference Figures 2 to 18 , the battery device 100 of the embodiment of the present application is described in detail.

[0114] The embodiment of the present application provides a battery device 100, including: a battery cell 20; a support plate 30, provided with a first through hole 31 and a second through hole 32; an electronic device 40, electrically connected to the battery cell 20, the electronic device 40 being provided with a first mounting hole 41 for connecting to the first through hole 31, and a second mounting hole 42 for connecting to the second through hole 32; an anti-foolproofing member 50, arranged on the support plate 30; wherein, when the first mounting hole 41 corresponds to the first through hole 31, and the second mounting hole 42 corresponds to the second through hole 32, the anti-foolproofing member 50 avoids the electronic device 40; when the first mounting hole 41 corresponds to the second through hole 32, and the second mounting hole 42 corresponds to the first through hole 31, the electronic device 40 interferes with the anti-foolproofing member 50.

[0115] The support plate 30 is a component that supports the electronic device 40, provides a stable mounting platform for the electronic device 40, and reduces the risk of movement or vibration of the electronic device 40. The support plate 30 can be made of a variety of materials, such as metal, plastic, etc. The metal can be aluminum, aluminum alloy, stainless steel, etc. The plastic part can be a fiber-reinforced material, etc. As an example, the support plate 30 can be a sheet metal part.

[0116] The support plate 30 is provided with a first through hole 31 and a second through hole 32. As an example, the first through hole 31 penetrates the first surface 301 and the second surface 302 of the support plate 30 in the thickness direction Z, and the second through hole 32 penetrates the first surface 301 and the second surface 302 of the support plate 30 in the thickness direction Z. The first surface 301 may be a surface supporting the electronic device 40. When the electronic device 40 is correctly installed, the electronic device 40 can be against the first surface 301. When the electronic device 40 is incorrectly installed, it cannot reach the first surface 301 due to the interference of the foolproof component 50.

[0117] The electronic device 40 is a device electrically connected to the battery cell 20. The electronic device 40 may be a device in the high-voltage box 60 for high-voltage power distribution in the battery device 100. For example, the electronic device 40 may be a relay in the high-voltage box 60 for controlling a high-voltage circuit switch, a circuit breaker for automatically cutting off a circuit when overloaded or short-circuited, a transformer for converting voltage levels, or other electrical devices. Of course, the electronic device 40 may also be other electrical devices in the battery device 100 that need to be bulked on the support plate 30.

[0118] The electronic device 40 is provided with a first mounting hole 41 for connecting with the first through hole 31, and a second mounting hole 42 for connecting with the second through hole 32. When the electronic device 40 is correctly installed, the first mounting hole 41 corresponds to the first through hole 31, and the second mounting hole 42 corresponds to the second through hole 32. When the electronic device 40 is incorrectly installed, the second mounting hole 42 corresponds to the first through hole 31, and the first mounting hole 41 corresponds to the second through hole 32.

[0119] To prevent the electronic device 40 from being installed incorrectly, an anti-foolproofing piece 50 is provided on the support plate 30. When the first mounting hole 41 corresponds to the first through hole 31 and the second mounting hole 42 corresponds to the second through hole 32, the electronic device 40 is correctly installed, the anti-foolproofing piece 50 avoids the electronic device 40, and the electronic device 40 can be smoothly installed on the support plate 30; when the first mounting hole 41 corresponds to the second through hole 32 and the second mounting hole 42 corresponds to the first through hole 31, the electronic device 40 is incorrectly installed, the electronic device 40 interferes with the anti-foolproofing piece 50, and the electronic device 40 is blocked from being installed on the support plate 30.

[0120] “Avoidance” can be understood as that when the electronic device 40 is correctly installed, along the thickness direction Z of the support plate 30 , the foolproof component 50 is located outside the projection of the electronic device 40 on the support plate 30 .

[0121] “Interference” can be understood as that when the electronic device 40 is incorrectly installed, along the thickness direction Z of the support plate 30 , the foolproof component 50 is located on the inner side of the projection of the electronic device 40 on the support plate 30 .

[0122] There are many ways to connect the foolproof part 50 to the support plate 30, such as fixed connection, detachable connection, etc. The fixed connection can be bonding, welding, etc., and the detachable connection can be snap connection, connection through fasteners, etc. The material of the foolproof part 50 can be plastic, metal or other material parts. The structure of the foolproof part 50 can be a regular structure or an irregular structure. The number of the foolproof parts 50 can be one, two or more.

[0123] By setting the anti-foolproofing piece 50 on the support plate 30, when the first mounting hole 41 corresponds to the second through hole 32 and the second mounting hole 42 corresponds to the first through hole 31, the electronic device 40 is incorrectly installed, and the electronic device 40 interferes with the anti-foolproofing piece 50 to prevent the electronic device 40 from being installed on the support plate 30; when the first mounting hole 41 corresponds to the first through hole 31 and the second mounting hole 42 corresponds to the second through hole 32, the electronic device 40 is correctly installed, and the anti-foolproofing piece 50 avoids the electronic device 40, so that the electronic device 40 is smoothly installed on the support plate 30; thereby, the probability of incorrect installation of the electronic device 40 can be reduced, thereby improving the installation reliability of the electronic device 40, and then improving the quality and reliability of the battery device 100, while reducing the detection and rework costs in the production process.

[0124] In some embodiments, the electronic device 40 includes a main body 43, a first lug 44 and a second lug 45 connected to the main body 43, the first mounting hole 41 is set on the first lug 44, and the second mounting hole 42 is set on the second lug 45. When the first mounting hole 41 corresponds to the second through hole 32 and the second mounting hole 42 corresponds to the first through hole 31, the anti-foolproof member 50 interferes with at least one of the first lug 44 and the second lug 45.

[0125] The main body 43 is the main structure of the electronic device 40, and is provided with a connector electrically connected to the battery cell 20. The main body 43 may be in a regular shape, such as a square, a cylinder, etc. The main body 43 in the embodiment of the present application is in a square shape.

[0126] The first mounting hole 41 is provided in the first lug 44, and the second mounting hole 42 is provided in the second lug 45. The first mounting hole 41 passes through both sides of the first lug 44 along the thickness direction, and the second mounting hole 42 passes through both sides of the second lug 45 along the thickness direction. The outer contour shape of the first lug 44 and the outer contour shape of the second lug 45 can be substantially the same or different.

[0127] When the electronic device 40 is incorrectly installed, that is, when the second mounting hole 42 corresponds to the first through hole 31, and the first mounting hole 41 corresponds to the second through hole 32, the anti-foolproofing piece 50 can interfere with the first lug 44 or the second lug 45 to prevent the electronic device 40 from being installed on the support plate 30; when the electronic device 40 is incorrectly installed, the anti-foolproofing piece 50 can interfere with the first lug 44 and the second lug 45 respectively to prevent the electronic device 40 from being installed on the support plate 30.

[0128] When the electronic device 40 is correctly installed, that is, the first installation hole 41 corresponds to the first through hole 31, and the second installation hole 42 corresponds to the second through hole 32, the foolproof member 50 avoids the first lug 44, the second lug 45 and the main body 43, so that the electronic device 40 can be smoothly installed on the support plate 30. The electronic device 40 can be connected to the support plate 30 by a first fastener 71 penetrating the first installation hole 41 and the first through hole 31, and a second fastener 72 penetrating the second installation hole 42 and the second through hole 32, so as to improve the connection stability of the electronic device 40.

[0129] The electronic device 40 includes a first lug 44 and a second lug 45. When the electronic device 40 is incorrectly installed, the anti-foolproofing component 50 interferes with at least one of the first lug 44 and the second lug 45. The lugs of the anti-foolproofing component 50 are used to prevent the electronic device 40 from being installed on the support plate 30. No additional components are required, which can reduce the probability of reverse installation of the electronic device 40 and improve installation reliability.

[0130] In some embodiments, the first lug 44 and the second lug 45 are disposed on opposite sides of the main body 43 along a first direction X, and the first direction X is perpendicular to a thickness direction Z of the support plate 30 .

[0131] Therefore, the anti-foolproof component 50 can reduce the probability of reverse installation of the electronic device, thereby improving the installation reliability; the electronic device 40 is connected to the support plate 30 through the first mounting hole 41 set on the first lug 44 and the first through hole 31, and the second mounting hole 42 set on the second lug 45 and the second through hole 32, which facilitates quick positioning and installation and improves installation efficiency.

[0132] In some embodiments, the first through hole 31 and the second through hole 32 are symmetrically arranged about the first center line O on the support plate 30; along the thickness direction Z of the support plate 30, the orthographic projection of the first lug 44 on the support plate 30 is the first projection 44a, and the orthographic projection of the second lug 45 on the support plate 30 is the second projection 45a, and the first projection 44a and the second projection 45a are asymmetrically arranged about the first center line O.

[0133] Reference Figure 7 and Figure 10 The first center line O passes through the midpoint of the line L connecting the first through hole 31 and the second through hole 32 , and is parallel to the thickness direction Z of the support plate 30 .

[0134] Along the thickness direction Z of the support plate 30, the orthographic projection of the first lug 44 on the support plate 30 is a first projection 44a ( Figure 10As shown, the orthographic projection of the second lug 45 on the support plate 30 is the second projection 45a, and the first projection 44a and the second projection 45a are asymmetrically arranged with respect to the first center line O. Both the first projection 44a and the second projection 45a are the projections of the electronic device 40 on the support plate 30 when it is correctly installed.

[0135] As an example, the first lug 44 and the second lug 45 are asymmetrically arranged with respect to the center of the main body 43, and the first mounting hole 41 and the second mounting hole 42 are symmetrically arranged with respect to the center of the main body 43. Among them, the center of the main body 43 is located on the first center line O, so that the first projection 44a of the first lug 44 on the support plate 30 and the second projection 45a of the second lug 45 on the support plate 30 are asymmetrically arranged with respect to the first center line O.

[0136] The first lug 44 can be larger than the second lug 45, so that the first lug 44 and the second lug 45 are asymmetrically arranged with respect to the center of the main body 43.

[0137] As an example, refer to Figure 17 , Figure 17 In, the correct installation of the electronic device 40 is indicated by a solid line, and the indication line corresponding to the reference numeral is also a solid line; the incorrect installation of the electronic device 40 is indicated by a dashed line, and the indication line corresponding to the reference numeral is also a dashed line. When the electronic device 40 is correctly installed, the first lug 44 and the second lug 45 are respectively located on both sides of the main body 43 along the first direction X, and the outer contour sizes of the first lug 44 and the second lug 45 are the same. There are two anti-fooling parts 50. When the electronic device 40 is correctly installed, both anti-fooling parts 50 avoid the electronic device 40. When the electronic device 40 is incorrectly installed, the two anti-fooling parts 50 interfere with the first lug 44 and the second lug 45 respectively.

[0138] As another example, refer to Figure 18 , Figure 18 In, the correct installation of the electronic device 40 is indicated by a solid line, and the indication line corresponding to the reference numeral is also a solid line; the incorrect installation of the electronic device 40 is indicated by a dashed line, and the indication line corresponding to the reference numeral is also a dashed line. When the electronic device 40 is correctly installed, the first lug 44 is located on one side of the main body 43 along the first direction X, and the second lug 45 is located on one side of the main body 43 along the second direction Y. The outer contour sizes of the first lug 44 and the second lug 45 can be the same. There are two anti-fooling parts 50. When the electronic device 40 is correctly installed, both anti-fooling parts 50 avoid the electronic device 40. When the electronic device 40 is incorrectly installed, the two anti-fooling parts 50 interfere with the first lug 44 and the second lug 45 respectively.

[0139] It should be noted that the positions of the first lug 44 and the second lug 45 are not limited to being on opposite sides of the main body 43, and they can also be on adjacent sides or the same side of the main body 43 (not shown in the figure). The outer contour sizes of the first lug 44 and the second lug 45 can be the same or different. The number of anti-fooling parts 50 can be one, two, or more. That is, when the electronic device 40 is misinstalled, the anti-fooling part 50 can interfere with any one lug or both lugs, as long as the projections of the two lugs (the first lug 44 and the second lug 45) are asymmetric with respect to the first center line O.

[0140] By setting the first projection 44a of the first lug 44 on the support plate 30 and the second projection 45a of the second lug 45 on the support plate 30 to be asymmetric with respect to the first center line O, it is convenient to set the anti-fooling part 50 at a position on the support plate 30 that is asymmetric with respect to the first projection 44a and the second projection 45a. When the electronic device 40 is installed in reverse (rotated 180° horizontally), the anti-fooling part 50 can interfere with the first lug 44 and prevent the electronic device 40 from being installed on the support plate 30, thereby reducing the error probability of reverse installation of the electronic device 40.

[0141] In some embodiments, referring to Figure 7 and Figure 10 , the support plate 30 has a first area 50a, and the first area 50a is symmetrically arranged with respect to the first center line O with the first projection 44a. The anti-fooling part 50 is located outside the second projection 45a and at least partially inside the first area 50a.

[0142] The first area 50a is symmetrically arranged with respect to the first center line O with the first projection 44a, that is, the first area 50a is the area on the support plate 30 when the first projection 44a rotates 180° around the first center line O. The anti-fooling part 50 can be partially inside the first area 50a or entirely inside the first area 50a.

[0143] As an example, when the electronic device 40 is installed in reverse, the projection of the first lug 44 on the support plate 30 coincides with the first area 50a.

[0144] By setting the anti-fooling part 50 in the first area 50a on the support plate 30 that is symmetric with respect to the first projection 44a with respect to the first center line O, when the electronic device 40 is installed in reverse (rotated 180° horizontally), the anti-fooling part 50 can interfere with the first lug 44 and prevent the electronic device 40 from being installed on the support plate 30.

[0145] In some embodiments, the first area 50a covers the second projection 45a and has an extended area 50b that extends beyond the second projection 45a; the anti-fooling part 50 is at least partially located within the extended area 50b.

[0146] When the electronic device 40 is installed in reverse, the projection of the first lug 44 on the support plate 30 (the first area 50a) covers the second projection 45a of the second lug 45 on the support plate 30 when the electronic device 40 is correctly installed, and has an overhanging area 50b that extends beyond the second projection 45a.

[0147] As an example, the outer contour of the first lug 44 can be larger than the outer contour of the second lug 45. For example, both sides of the first lug 44 extend beyond the second lug 45 in the second direction Y, and the second direction Y, the first direction X, and the thickness direction Z of the support plate 30 are perpendicular to each other in pairs. When the electronic device 40 is installed in reverse, the projection of the first lug 44 on the support plate 30 (the first area 50a) covers the second projection 45a of the second lug 45 on the support plate 30 when the electronic device 40 is correctly installed, and has an overhanging area 50b that extends beyond the second projection 45a in the second direction Y. Two anti-fooling parts 50 can be provided on the support plate 30, and the two anti-fooling parts 50 are respectively located on both sides of the first lug 44 in the second direction Y. Setting the two anti-fooling parts 50 can cause the anti-fooling parts 50 to interfere with the first lug 44 even when the overhanging dimension of the first lug 44 beyond the second lug 45 is small, thereby reliably preventing the incorrect installation of the electronic device 40.

[0148] In other embodiments, the first lug 44 can also extend beyond the second lug 45 in other directions.

[0149] By covering the second projection 45a with the first area 50a and having an overhanging area 50b that extends beyond the second projection 45a, and at least part of the anti-fooling part 50 is located within the overhanging area 50b, the anti-fooling part 50 can be arranged in the area of the support plate 30 that is symmetric about the first center line O with respect to the overhanging part of the first lug 44 beyond the second lug 45, thereby reliably preventing the incorrect installation of the electronic device 40.

[0150] In some embodiments, the anti-fooling part 50 is detachably arranged on the support plate 30.

[0151] The anti-fooling part 50 can be detachably arranged on the support plate 30 by snap connection, bonding, or fasteners.

[0152] By detachably arranging the anti-fooling part 50 on the support plate 30, after the correct installation of the electronic device 40 is completed, the anti-fooling part 50 can be removed for repeated use, thereby reducing costs.

[0153] In some embodiments, the anti-fooling part 50 is snap-connected to the support plate 30.

[0154] By snap-connecting the anti-fooling part 50 to the support plate 30, it is convenient for quick installation and removal, and improves the assembly efficiency.

[0155] In some embodiments, the support plate 30 has a first surface 301 and a second surface 302 that are relatively arranged along its thickness direction Z, the support plate 30 is provided with a third through hole 33 that passes through the first surface 301 and the second surface 302, and the electronic device 40 is arranged on the first surface 301; the anti-mistake component 50 includes a limit block 51 and a claw 52 connected to the limit block 51, the claw 52 passes through the third through hole 33 and abuts against the second surface 302, and the limit block 51 abuts against the first surface 301.

[0156] The third through hole 33 may be located in the first area 50a or outside the first area 50a, as long as the stop block 51 is at least partially located in the first area 50a when the foolproof component 50 is installed in the third through hole 33.

[0157] The electronic device 40 may be installed along the thickness direction Z of the support plate 30 , and when the electronic device 40 abuts against the first surface 301 , the electronic device 40 is installed in place.

[0158] The foolproof member 50 includes a limit block 51 and a claw 52 connected to the limit block 51. The claw 52 passes through the third through hole 33 and abuts against the second surface 302 to limit the displacement of the foolproof member 50 along the thickness direction Z of the support plate 30. The limit block 51 abuts against the first surface 301. When the electronic device 40 is incorrectly installed, the electronic device 40 abuts against the limit block 51 and interferes with it and cannot be installed in place ( Figure 8 As shown), when the electronic device 40 is correctly installed, the foolproof member 50 avoids the electronic device 40, so that the electronic device 40 can be installed in place against the first surface 301 ( Figure 5 as shown).

[0159] The shape of the limit block 51 can be square or other shapes. The foolproof part 50 can be an integral injection molded part.

[0160] The anti-foolproofing component 50 includes a limit block 51 and a claw 52 connected to the limit block 51, the claw 52 passes through the third through hole 33 and abuts against the second surface 302, the limit block 51 abuts against the first surface 301, and the anti-foolproofing component 50 is fixed by being embedded in the support plate 30 as an insert, and can be quickly installed and firmly fixed to the support plate 30, thereby improving reliability.

[0161] As an example, the third through hole 33 may be a waist hole.

[0162] The length dimension of the waist hole is greater than the width dimension. When the anti-foolproofing component 50 is installed in the waist hole, the rotation of the anti-foolproofing component 50 can be limited, thereby further improving reliability.

[0163] In some embodiments, the support plate 30 has a first surface 301 and a second surface 302 arranged opposite to each other along its thickness direction Z, the support plate 30 is provided with a third through hole 33 passing through the first surface 301 and the second surface 302, and the electronic device 40 is arranged on the first surface 301; the anti-foolproof part 50 is a stud, which is threadedly connected to the third through hole 33 and protrudes from the first surface 301.

[0164] When the electronic device 40 is incorrectly installed, the electronic device 40 abuts against the stud and interferes with it and cannot be installed properly. Figure 14 and Figure 15 As shown), when the electronic device 40 is correctly installed, the stud avoids the electronic device 40, so that the electronic device 40 can be installed in place against the first surface 301 ( Figure 12 and Figure 13 as shown).

[0165] Different from the above-mentioned anti-mistake piece 50 which is an insert, the anti-mistake piece 50 uses a standard stud, which does not add additional production, processing and assembly steps, thereby reducing costs.

[0166] In some embodiments, the support plate 30 has a first surface 301 and a second surface 302 disposed opposite to each other along the thickness direction Z thereof, and the electronic device 40 is disposed on the first surface 301; the foolproof member 50 is a folded edge portion integrally formed with the support plate 30 ( Figure 16 As shown in FIG. 30 ), the folded edge portion protrudes from the first surface 301.

[0167] When the electronic device 40 is incorrectly installed, the electronic device 40 abuts against the folded edge and interferes with it and cannot be installed in place. When the electronic device 40 is correctly installed, the folded edge avoids the electronic device 40, so that the electronic device 40 can abut against the first surface 301 and be installed in place.

[0168] The foolproof part 50 is formed by folding the support plate 30 itself, without adding additional parts, thereby reducing costs.

[0169] Refer to the following Figure 2 and Figure 16 , a specific embodiment of the present application is described in detail.

[0170] The present application embodiment provides a battery device 100, which includes a box body 10, a high-voltage box 60 ( Figure 4 As shown in FIG. 1 ), the high voltage box 60 includes an electronic device 40. The electronic device 40 is mounted on the support plate 30.

[0171] The support plate 30 is provided with a first through hole 31 and a second through hole 32. The electronic device 40 includes a main body 43, a first lug 44 and a second lug 45 provided on opposite sides of the main body 43 along the first direction X, the first lug 44 is provided with a first mounting hole 41 corresponding to the first through hole 31, and the second lug 45 is provided with a second mounting hole 42 corresponding to the second through hole 32. The first mounting hole 41 and the second mounting hole 42 are symmetrically arranged about the center of the main body 43, and the first lug 44 and the second lug 45 are asymmetrically arranged about the center of the main body 43. Specifically, the first lug 44 has two protruding structures that protrude from the second lug 45 along the second direction Y. When the electronic device 40 is correctly installed, the first mounting hole 41 corresponds to the first through hole 31, and the second mounting hole 42 corresponds to the second through hole 32. When the electronic device 40 is incorrectly installed, the first mounting hole 41 corresponds to the second through hole 32, and the second mounting hole 42 corresponds to the first through hole 31. Two anti-foolproofing parts 50 are provided on the support plate 30. The two anti-foolproofing parts 50 are located at positions corresponding to the above-mentioned two protruding structures and symmetrical with respect to the center of the main body 43. Therefore, when the electronic device 40 is correctly installed, the anti-foolproofing parts 50 avoid the second lug 45 so that the electronic device 40 is installed on the support plate 30. When the electronic device 40 is incorrectly installed, the anti-foolproofing parts 50 interfere with the first lug 44 so that the electronic device 40 cannot be installed on the support plate 30.

[0172] The foolproof member 50 can be provided in various forms. Figure 5 , Figure 6 , Figure 8 and Figure 9 , the foolproof member 50 is an insert, embedded in the third through hole 33 on the support plate 30. Specifically, the foolproof member 50 includes a limit block 51 and a claw 52 connected to the limit block 51, the claw 52 passes through the third through hole 33 and abuts against the second surface 302 of the support plate 30 to limit the displacement of the foolproof member 50 along the thickness direction Z of the support plate 30, the limit block 51 abuts against the first surface 301 of the support plate 30, when the electronic device 40 is incorrectly installed, the electronic device 40 abuts against the limit block 51 and interferes with it and cannot be installed in place ( Figure 8 and Figure 9 As shown), when the electronic device 40 is correctly installed, the foolproof member 50 avoids the electronic device 40, so that the electronic device 40 can be installed in place against the first surface 301 ( Figure 4 and Figure 5 as shown).

[0173] Reference Figure 12 , Figure 13 , Figure 14 and Figure 15 , the foolproof part 50 is a stud. When the electronic device 40 is installed incorrectly, the electronic device 40 abuts against the stud and interferes with it and cannot be installed in place ( Figure 14 and Figure 15As shown), when the electronic device 40 is correctly installed, the stud avoids the electronic device 40, so that the electronic device 40 can be installed in place against the first surface 301 ( Figure 12 and Figure 13 as shown).

[0174] Reference Figure 16 The foolproof part 50 is a folding part integrally formed with the support plate 30 ( Figure 16 As shown in FIG. 3 ), the folded edge protrudes from the first surface 301. When the electronic device 40 is incorrectly installed, the electronic device 40 abuts against the folded edge and interferes with it and cannot be installed in place. When the electronic device 40 is correctly installed, the folded edge avoids the electronic device 40, so that the electronic device 40 can abut against the first surface 301 and be installed in place.

[0175] By providing an anti-mistake piece 50 on the support plate 30, whether it is an insert, a stud or the folded edge of the support plate 30 itself, interference can be generated when the electronic device 40 is reversely installed, thereby ensuring that electronic devices 40 such as relays can only be assembled in the correct direction, reducing the probability of incorrect assembly, reducing error correction and rework time during the assembly process, and improving the overall assembly efficiency.

[0176] While meeting the foolproofing requirements, no excessive cost is added. For example, by utilizing the structural modification of the studs and the support plate 30 itself, the foolproofing function is achieved without adding parts such as the injection molding limit base, which is conducive to reducing costs.

[0177] The embodiment of the present application further provides an electrical device, comprising: the battery device 100 according to any of the above embodiments.

[0178] Since the electronic device 40 in the battery device 100 can be correctly installed on the support plate 30 , the reliability of the battery device 100 is improved, and thus the power reliability of the power-consuming device including the battery device 100 is also improved.

[0179] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery device, characterized in that: include: Battery cells; A support plate, provided with a first through hole and a second through hole, wherein the first through hole and the second through hole are symmetrically arranged about a first center line on the support plate; an electronic device electrically connected to the battery cell, the electronic device comprising a main body, a first lug connected to the main body and a second lug, the first lug being provided with a first mounting hole for connecting to the first through hole, the second lug being provided with a second mounting hole for connecting to the second through hole, along the thickness direction of the support plate, the orthographic projection of the first lug on the support plate is a first projection, the orthographic projection of the second lug on the support plate is a second projection, and the first projection and the second projection are asymmetrically arranged about the first center line; A foolproof component, arranged on the support plate; Among them, when the first mounting hole corresponds to the first through hole and the second mounting hole corresponds to the second through hole, the anti-foolproof part avoids the electronic component; when the first mounting hole corresponds to the second through hole and the second mounting hole corresponds to the first through hole, the anti-foolproof part interferes with at least one of the first lug and the second lug.

2. The battery device according to claim 1, characterized in that: The first lug and the second lug are arranged on two opposite sides of the main body along a first direction, and the first direction is perpendicular to a thickness direction of the support plate.

3. The battery device according to claim 1, characterized in that: The support plate has a first area, the first area and the first projection are symmetrically arranged about the first center line, and the foolproof component is located outside the second projection and at least partially inside the first area.

4. The battery device according to claim 3, characterized in that: The first area covers the second projection and has an excess area exceeding the second projection; The foolproofing feature is at least partially located within the excess area.

5. The battery device according to claim 1, characterized in that: The foolproof component is detachably arranged on the support plate.

6. The battery device according to claim 5, characterized in that: The foolproof component is clamped on the support plate.

7. The battery device according to claim 6, characterized in that: The support plate has a first surface and a second surface that are arranged opposite to each other along the thickness direction thereof, the support plate is provided with a third through hole that penetrates the first surface and the second surface, and the electronic device is arranged on the first surface; The foolproof component includes a limit block and a claw connected to the limit block, the claw passes through the third through hole and abuts against the second surface, and the limit block abuts against the first surface.

8. The battery device according to claim 7, characterized in that: The third through hole is a waist hole.

9. The battery device according to claim 5, characterized in that: The support plate has a first surface and a second surface that are arranged opposite to each other along the thickness direction thereof, the support plate is provided with a third through hole that penetrates the first surface and the second surface, and the electronic device is arranged on the first surface; The foolproof component is a stud, which is threadedly connected to the third through hole and protrudes from the first surface.

10. The battery device according to claim 1, characterized in that: The support plate has a first surface and a second surface which are arranged opposite to each other along the thickness direction thereof, and the electronic device is arranged on the first surface; The foolproof part is a folded edge portion integrally formed with the support plate, and the folded edge portion protrudes from the first surface.

11. The battery device according to claim 1, characterized in that: The first lug is connected to the support plate via a first fastener penetrating the first mounting hole and the first through hole, and the second lug is connected to the support plate via a second fastener penetrating the second mounting hole and the second through hole.

12. The battery device according to claim 1, characterized in that: The battery device further comprises a high voltage box including the electronic device.

13. An electrical device, characterized in that: include: A battery device as claimed in any one of claims 1 to 12.

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