Battery device and electric equipment

Abstract

The embodiment of the utility model provides a battery device and electric equipment, and relates to the technical field of batteries. The battery device comprises a box body, a battery monomer and an electric control assembly, and the box body is provided with a first accommodating cavity; the battery monomers are mounted in the first accommodating cavity; the electric control assembly is installed in the first containing cavity and comprises a shell, a control structure and a first elastic supporting piece, the control structure and the first elastic supporting piece are located in the shell, the shell comprises a first wall, the first elastic supporting piece is connected to the first wall, and the control structure is installed on the first elastic supporting piece. According to the battery device, the control structure is not directly connected with the first wall, but is installed on the first elastic supporting piece, when the shell is impacted or vibrated, the influence of impact or vibration on the performance of the control structure is relieved through elastic deformation of the first elastic supporting piece, and the stability and reliability of the battery device product are improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to a battery device and an electrical appliance. Background Technology

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

[0003] The electronic control components of a battery device include a housing and a control structure located inside the housing. The housing is easily subjected to impacts or vibrations during transportation, assembly, and operation, which can affect the performance of the internal control structure. Therefore, how to reduce the impact of external impacts or vibrations on the performance of the internal control structure is an important research direction in battery technology. Summary of the Invention

[0004] This application provides a battery device and an electrical appliance that can reduce the impact of external shocks or vibrations on the performance of the internal control structure.

[0005] In a first aspect, embodiments of this application provide a battery device, including a housing, a battery cell, and an electronic control assembly. The housing has a first receiving cavity; the battery cell is installed in the first receiving cavity; the electronic control assembly is installed in the first receiving cavity and includes a housing, a control structure located within the housing, and a first elastic support member. The housing includes a first wall, the first elastic support member is connected to the first wall, and the control structure is installed on the first elastic support member.

[0006] By adopting the above technical solution, the control structure is not directly connected to the first wall, but is installed on the first elastic support. When the shell is subjected to impact or vibration, the elastic deformation of the first elastic support can reduce the impact or vibration on the performance of the control structure, thereby improving the stability and reliability of the battery device product.

[0007] In some embodiments of this application, the first elastic support includes a first spring, the first spring being mounted on the first wall, and the control structure being mounted on the end of the first spring facing away from the first wall.

[0008] By adopting the above technical solution, the first elastic support is designed as a first spring. The first spring has good elastic deformation capability and can effectively absorb mechanical shock and vibration.

[0009] In some embodiments of this application, a first positioning member is provided on the first wall, a portion of the first spring is connected to the first positioning member, the first positioning member is configured to restrict the radial movement of the first spring, and the control structure is mounted on the end of the first spring opposite to the first positioning member.

[0010] By adopting the above technical solution, a first positioning element is provided on the first wall to limit the radial movement of the first spring, thereby improving the stability of the first spring during the extension and contraction process.

[0011] In some embodiments of this application, the first spring is sleeved on the first positioning member.

[0012] By adopting the above technical solution, the first spring is directly sleeved on the first positioning component, which facilitates the positioning and assembly of the first spring.

[0013] In some embodiments of this application, the first positioning member includes a first positioning post, the end of the first positioning post connected to the first wall is provided with a first annular flange, the first spring is sleeved with the first annular flange, and the control structure includes an electrical control structure, the electrical control structure is provided with a limiting hole opposite to the first positioning post, the limiting hole is used for insertion and engagement with the first positioning post.

[0014] By adopting the above technical solution, the first positioning component is designed to include a first positioning post and a first annular flange. The first annular flange is used for positioning and assembling the first spring and for radial limiting. When the electronic control structure generates displacement and compresses the first spring, the limiting hole can be inserted into the first positioning post. The insertion of the limiting hole into the first positioning post restricts the radial movement of the electronic control structure along the limiting hole, thereby improving the stability of the electronic control structure in the displacement of the compressed first spring.

[0015] In some embodiments of this application, the radial dimension of the first spring is larger than the diameter of the limiting hole.

[0016] By adopting the above technical solution, the radial dimension of the first spring is designed to be larger than the diameter of the limiting hole, thereby reducing the possibility that the first spring extending into the limiting hole will affect the buffering performance of the first spring.

[0017] In some embodiments of this application, the first elastic support includes a first elastic column, which is an elastic deformation member. One end of the first elastic column is connected to the first wall, and the control structure is installed at the end of the first elastic column opposite to the first wall.

[0018] By adopting the above technical solution, the first elastic support is designed as the first elastic column of the elastic deformation component, which has a simple structure and is easy to assemble.

[0019] In some embodiments of this application, the housing further includes a side wall and a second wall. The side wall is circumferentially connected to the first wall, and the second wall is connected to the side of the side wall away from the first wall. The first wall, the side wall, and the second wall enclose a second receiving cavity for accommodating the control structure. A second elastic support is provided on the side of the second wall facing the first wall, and the control structure is installed between the first elastic support and the second elastic support.

[0020] By adopting the above technical solution, the control structure is installed between the first elastic support and the second elastic support. This not only provides better installation stability for the control structure, but also utilizes the deformation of the first and second elastic supports to simultaneously dampen the control structure, further reducing the impact of external shocks or vibrations on the performance of the control structure. This can better improve the stability and reliability of the battery device product.

[0021] In some embodiments of this application, the second elastic support includes a second spring, which is mounted on the second wall, and the control structure is mounted on the end of the second spring away from the second wall; and / or, the second elastic support includes a second elastic column, which is an elastic deformation member, with one end of the second elastic column connected to the second wall, and the control structure mounted on the end of the second elastic column away from the first wall.

[0022] By adopting the above technical solution, the second elastic support is designed as a second spring, which has good elastic deformation capability and can effectively absorb mechanical shock and vibration; or the second elastic support is designed as a second elastic column of elastic deformation component, which has a simple structure and is easy to assemble.

[0023] In some embodiments of this application, the housing further includes a sidewall connected to the first wall circumferentially along the first wall, and the control structure is spaced apart from the sidewall.

[0024] By adopting the above technical solution, a gap is formed between the control structure and the side wall, which reduces the wear between the control structure and the side wall when the control structure is displaced by impact or vibration.

[0025] In some embodiments of this application, the housing further includes a limiting member connected to the side wall and / or the first wall and located within the gap between the control structure and the side wall. The limiting member is configured to limit the displacement of the control structure in a first direction and a second direction, the first direction and the second direction intersecting and being parallel to the inner wall surface of the first wall, respectively.

[0026] By adopting the above technical solution, a limiting component is provided inside the housing. The limiting component is used to limit the control structure in the first and second directions, thereby reducing the displacement of the control structure along the inner wall surface parallel to the first wall and improving the stability of the control structure when subjected to impact or vibration.

[0027] In some embodiments of this application, the limiting member includes a first limiting plate and a second limiting plate connected at an angle, the control structure includes an electronic control structure, the electronic control structure includes an adjacent and intersecting first side and a second side, the first side extends along a first direction, the second side extends along a second direction, the first limiting plate is adjacent to the first side in the first direction and is used to limit the displacement of the first side along the first direction, and the second limiting plate is adjacent to the second side in the second direction and is used to limit the displacement of the second side along the second direction.

[0028] By adopting the above technical solution, the limiting component is designed to include a first limiting plate and a second limiting plate connected at an angle. The first limiting plate limits the displacement of the electronic control structure along the first direction, and the second limiting plate limits the displacement of the electronic control structure along the second direction. The structure is simple and has a good limiting effect.

[0029] In some embodiments of this application, the electronic control structure has a first diagonal and a second diagonal opposite each other along a third direction, the third direction being parallel to the inner wall surface of the first wall and intersecting the first direction and the second direction respectively, and a limiting member is provided at the interval between the first diagonal and the side wall and at the interval between the second diagonal and the side wall respectively.

[0030] By adopting the above technical solution, limiting components are set at two opposite corners of the electronic control structure, which can limit the electronic control structure in two sub-directions opposite to the first direction and two sub-directions opposite to the second direction, thereby further improving the stability of the electronic control structure when subjected to impact or vibration.

[0031] Secondly, embodiments of this application provide an electrical device including the aforementioned battery device, which is used to provide electrical energy. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0033] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0034] Figure 2 This is a partial schematic diagram of a battery device provided in some embodiments of this application;

[0035] Figure 3 This is a schematic diagram of the structure of a first type of electronic control component provided in some embodiments of this application;

[0036] Figure 4 Exploded view of a first type of electronic control component provided in some embodiments of this application;

[0037] Figure 5 This application provides schematic diagrams of the structure of a first positioning element and a first spring for a first type of electronic control assembly, as shown in some embodiments.

[0038] Figure 6 A top view of a first type of electronic control component provided in some embodiments of this application;

[0039] Figure 7 for Figure 5 AA section diagram;

[0040] Figure 8 A schematic diagram of the structure of a first type of electronic control component provided in some embodiments of this application after the first positioning post and the limiting hole are inserted;

[0041] Figure 9 A top view of a second type of electronic control component provided in some embodiments of this application;

[0042] Figure 10 for Figure 9 BB cross-sectional view.

[0043] The reference numerals in the accompanying drawings for the specific embodiments are as follows:

[0044] 1000, vehicles;

[0045] 100. Battery device;

[0046] 10. Box body; 11. First part; 12. Second part; 13. First receiving cavity;

[0047] 20. Battery cell;

[0048] 30. Electrical control component; 31. Housing; 311. First wall; 312. Side wall; 313. First elastic support; 3131. First spring; 3132. First elastic column; 314. First positioning component; 3141. First positioning post; 3142. First annular flange; 315. Second wall; 316. Second receiving cavity; 317. Second elastic support; 3171. Second spring; 3172. Second elastic column; 318. Second positioning component; 3181. Second positioning post; 3182. Second annular flange; 319. Limiting component; 3191. First limiting plate; 3192. Second limiting plate; 32. Control structure; 321. Electrical control structure; 3211. Limiting hole; 3212. First diagonal; 3213. Second diagonal;

[0049] 200. Controller;

[0050] 300. Motor;

[0051] X, the first direction; Y, the second direction. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0054] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, H and / or B can represent: H existing alone, H and B existing simultaneously, and B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

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

[0058] In this application, "multiple" means two or more (including two).

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

[0060] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. A battery generally includes a housing for encapsulating one or more battery cells. The housing prevents liquids or other foreign matter from affecting the charging or discharging of the battery cells.

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

[0062] Currently, battery devices are being used more and more widely. They are not only used in energy storage systems for hydropower, thermal power, wind power, and solar power plants, but also extensively in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. As the application areas of battery devices continue to expand, the market demand is also constantly increasing.

[0063] A battery device typically includes a housing and battery cells and electronic control components located inside the housing. The electronic control components include a housing and an internal control structure. The housing is used to withstand external shocks and pressures and to protect the internal control structure from physical damage.

[0064] However, the protection level of the casing in related technologies needs to be improved. When the electronic control components are subjected to certain external impacts or pressures, such as a large collision or a direct drop of the electronic control components, or when the battery device is subjected to vibration in a vehicle, it will still cause certain damage to the internal control structure. Moreover, it is impossible to detect and verify in time, which affects the performance of the control structure. It may even leave hidden damage or cracks in the control structure, leading to reliability problems and reduced lifespan of the battery device during use.

[0065] Therefore, improving the protective effect of the casing on the internal control structure and reducing the impact of external force or pressure on the performance of the control structure is an important issue in the research and development of battery devices and related components.

[0066] In view of this, this application provides a technical solution in which the control structure is installed on the elastic element, the electronic control components do not directly contact the housing, and the elastic element is used for shock absorption and energy absorption, thereby solving the above-mentioned technical problems.

[0067] The battery cells described in the embodiments of this application are applicable to batteries and electrical devices that use batteries.

[0068] Electrical equipment can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power 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, etc. This application does not impose any special limitations on the above-mentioned electrical equipment.

[0069] For ease of explanation, the following embodiments use a vehicle as an example of electrical equipment.

[0070] Combined with appendix Figure 1 As shown, vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of vehicle 1000. The battery device 100 can be used to power vehicle 1000; for example, the battery device 100 can serve as the operating power source for vehicle 1000. Vehicle 1000 may also 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, to meet the power needs of vehicle 1000 during starting, navigation, and driving.

[0071] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0072] Combined with appendix Figure 2-6As shown, this application embodiment provides a battery device 100, including a housing 10, a battery cell 20, and an electronic control assembly 30. The housing 10 is provided with a first receiving cavity 13; the battery cell 20 is installed in the first receiving cavity 13; the electronic control assembly 30 is installed in the first receiving cavity 13 and includes a housing 31, a control structure 32 located in the housing 31, and a first elastic support member 313. The housing 31 includes a first wall 311, the first elastic support member 313 is connected to the first wall 311, and the control structure 32 is installed on the first elastic support member 313.

[0073] The housing 10 can adopt various structures. In some embodiments, the housing 10 may include a first portion 11 and a second portion 12, which overlap each other, and together define a first receiving cavity 13 for accommodating the battery cell 20. Both the first portion 11 and the second portion 12 can be hollow structures with one open end, with the second portion 12 covering the open side of the first portion 11, so that the first portion 11 and the second portion 12 together define the first receiving cavity 13; alternatively, the second portion 12 can be a plate-like structure, and the first portion 11 can be a hollow structure with one open side, with the open side of the second portion 12 covering the open side of the first portion 11. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can be of various shapes, such as a cylinder, a cuboid, etc.

[0074] In some embodiments, the first receiving cavity 13 may have only one cavity, or it may be divided into two or more sub-cavities by a structure such as a limiting beam, wherein at least one sub-cavity is used to place the battery cell 20 and at least one sub-cavity is used to place the electronic control assembly 30.

[0075] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0076] There can be multiple battery cells 20, which can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 20 are connected in both series and parallel configurations. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, multiple battery cells 20 can first be connected in series, parallel, or in a mixed configuration to form a battery module, and then multiple battery modules can be connected in series, parallel, or in a mixed configuration to form a whole, which is then housed within the housing 10. The battery device 100 may also include other structures; for example, the battery device 100 may also include a busbar (not shown in the figure) for realizing the electrical connection between the multiple battery cells 20.

[0077] The electronic control assembly 30 includes a housing 31 and a control structure 32 (not shown in the figure) located within the housing 31. The control structure 32 may include the control circuit of the battery management system (BMS) or the battery monitoring circuit (CSC). When the control structure 32 includes the control circuit of the battery management system, the control structure 32 can be directly connected to each battery cell 20 and monitor the voltage, temperature, and other status information of each battery cell 20 to ensure effective battery management. Through data analysis, the charging process can be optimized to extend battery life and prevent potential dangers such as overcharging, over-discharging, short circuits, and overheating. In addition, the control structure 32 may also have a balancing function to balance the charge of each battery cell and avoid overall performance degradation due to imbalances between cells.

[0078] The housing 31 includes a first wall 311 and a side wall 312. The side wall 312 surrounds and is connected to the first wall 311. The first wall 311 and the side wall 312 form a receiving groove for accommodating the control structure 32. In some embodiments, the control structure 32 may include an electronic control structure 321. The electronic control structure 321 is installed in the receiving groove and may include a circuit board.

[0079] To reduce the impact of shock or vibration on the electronic control structure 321, this embodiment designs the housing 31 to also have a first elastic support member 313. The first elastic support member 313 is connected to the first wall 311, and the control structure 32 is installed on the first elastic support member 313, not directly connected to the first wall 311 or the side wall 312, so that the control structure 32 forms a state similar to suspension. When the housing 31 is subjected to shock or vibration, the elastic deformation of the first elastic support member 313 can reduce the impact of shock or vibration on the performance of the control structure 32, thereby improving the stability and reliability of the battery device 100 product.

[0080] The number of first elastic support members 313 can be one or more. Taking the rectangular shell 31 in the figure as an example, first elastic support members 313 can be set at the four opposite corners of the shell 31 and in the middle area of ​​the shell 31 to improve the shock absorption effect on the control structure 32.

[0081] Combined with appendix Figure 4-7 As shown, in some examples, optionally, the first elastic support 313 includes a first spring 3131, which is mounted on the first wall 311, and the control structure 32 is mounted on the end of the first spring 3131 opposite to the first wall 311.

[0082] The first spring 3131 can be a spring structure made of metal materials such as spring steel or stainless steel, or it can be a spring structure made of elastic plastic, and it can be helical.

[0083] The first spring 3131 and the first wall 311 can be connected by means of bonding, heat fusion, or by means of plugging or snapping, as long as the lower end of the first spring 3131 is relatively fixed to the first wall 311.

[0084] The length direction of the first spring 3131 can be perpendicular to the wall direction of the first wall 311. The control structure 32 is installed at the end of the first spring 3131 away from the first wall 311. The control structure 32 can be connected to the first spring 3131 by means of bonding, heat fusion connection, plugging or snap-fitting.

[0085] The first elastic support 313 is designed as a first spring 3131. The first spring 3131 has good elastic deformation capability, can effectively absorb mechanical shock and vibration, and has the advantages of light weight and small space occupation.

[0086] In some examples, optionally, a first positioning member 314 is provided on the first wall 311, a portion of the first spring 3131 is connected to the first positioning member 314, the first positioning member 314 is configured to limit the radial movement of the first spring 3131, and a control structure 32 is mounted on the end of the first spring 3131 opposite to the first positioning member 314.

[0087] Since the first spring 3131 can deform radially in addition to axial compression and tension, it is easy for the control structure 32, such as the electronic control structure 321, to collide or wear with the side wall 312. Therefore, it is necessary to control the range of radial movement of the first spring 3131.

[0088] Therefore, in this embodiment, a first positioning member 314 is provided on the first wall 311. The first positioning member 314 is used to limit the radial movement of the first spring 3131. By using the first positioning member 314 to limit the radial movement of the first spring 3131, the stability of the first spring 3131 during the extension and contraction process is improved.

[0089] The first positioning member 314 restricts the radial movement of the first spring 3131, meaning that the first positioning member 314 allows at least a portion of the first spring 3131 to make radial displacement within a certain range without exceeding the limit range, rather than making the first spring 3131 completely unable to produce radial displacement at any position.

[0090] In some examples, the first spring 3131 is optionally fitted onto the first positioning member 314.

[0091] The outer diameter of the first positioning member 314 is less than or equal to the inner diameter of the first spring 3131, so that the first spring 3131 can be directly fitted onto the first positioning member 314.

[0092] The first spring 3131 is directly sleeved on the first positioning member 314, which facilitates the positioning and assembly of the first spring 3131.

[0093] Combined with appendix Figure 4 and 5 As shown, in some examples, optionally, the first positioning member 314 includes a first positioning post 3141, the end of the first positioning post 3141 connected to the first wall 311 is provided with a first annular flange 3142, the first spring 3131 is sleeved with the first annular flange 3142, and the control structure 32 includes an electrical control structure 321, the electrical control structure 321 is provided with a limiting hole 3211 opposite to the first positioning post 3141, the limiting hole 3211 is used for insertion and engagement with the first positioning post 3141.

[0094] The first positioning post 3141 can be a cylinder with a circular cross-section, or a columnar structure with a rectangular cross-section or other shapes. The material of the first positioning post 3141 can be metal or plastic.

[0095] The first positioning post 3141 and the first wall 311 can be connected by mechanical connection methods such as welding, bonding, plugging, and snapping, or they can be integrally formed with the first wall 311 during processing. This embodiment will not list them in detail.

[0096] The first positioning post 3141 is provided with a first annular flange 3142. The radial dimension of the outer wall surface of the first annular flange 3142 matches the radial dimension of the inner wall surface of the first spring 3131. The radial dimension of the remaining part of the first positioning post 3141, excluding the first annular flange 3142, is smaller than the radial dimension of the inner wall surface of the first spring 3131.

[0097] This allows the lower end of the first spring 3131 to be fixed on the first positioning member 314, and the first positioning post 3141, excluding the first annular flange 3142, can radially limit the first spring 3131 to restrict its radial movement. The range of radial movement of the first spring 3131 is the difference in radial dimension between the first annular flange 3142 and the remaining part of the first positioning post 3141 excluding the first annular flange 3142.

[0098] Furthermore, in order to avoid interference between the first positioning post 3141 and the electronic control structure 321, a limiting hole 3211 that can be inserted into the electronic control structure 321 can be provided. The radial dimension of the limiting hole 3211 is greater than or equal to the radial dimension of the rest of the first positioning post 3141 except for the first annular flange 3142.

[0099] like Figure 8As shown, when the electronic control structure 321 generates displacement and compresses the first spring 3131, the limiting hole 3211 can be inserted into the first positioning post 3141. The insertion of the limiting hole 3211 into the first positioning post 3141 restricts the movement of the electronic control structure 321 along the radial direction of the limiting hole 3211, thereby improving the stability of the electronic control structure 321 in the displacement of the first spring 3131.

[0100] In other words, the first positioning post 3141 in this embodiment can not only limit the first spring 3131, but also limit the electronic control structure 321 when it is subjected to oscillation and the spring is compressed, thus serving multiple purposes in one unit.

[0101] In some examples, the radial dimension of the first spring 3131 is optionally larger than the diameter of the limiting hole 3211.

[0102] The radial dimension of the first spring 3131 is designed to be larger than the diameter of the limiting hole 3211, thereby reducing the possibility that the first spring 3131 may extend into the limiting hole 3211 and affect the buffering performance of the first spring 3131.

[0103] Combined with appendix Figure 9 and 10 As shown, in some examples, optionally, the first elastic support 313 includes a first elastic column 3132, which is an elastic deformation member. One end of the first elastic column 3132 is connected to the first wall 311, and the control structure 32 is installed at the end of the first elastic column 3132 that is away from the first wall 311.

[0104] The first elastic column 3132 and the aforementioned first spring 3131 are two alternative or mutually combined first elastic support members 313. It should be noted that although the outer contour of the first spring 3131 can also be approximately columnar, the first spring 3131 is a hollow structure and is spiral in the length direction, and the outer wall is not completely continuous. In contrast, the first elastic column 3132 in this embodiment is a column with a continuous outer wall and is made of elastically deformable material. Therefore, the two are different in structure and shape.

[0105] In some embodiments, the elastically deformable material can be an elastic colloidal material or an elastic polymer material, specifically thermoplastic polyurethane (TPU), rubber (e.g., EPDM rubber), thermoplastic elastomer (TPE), and silicone (solid or liquid), etc. This embodiment will not list them all.

[0106] The first elastic support 313 is designed as the first elastic column 3132, which is an elastic deformation component. Compared with the first spring 3131, which requires the first positioning component 314 for assembly, the first elastic column 3132 can be directly installed on the first wall 311 through mechanical connection. The structure is simpler and easier to assemble.

[0107] Combined again with the appendix Figure 4-10 As shown, in some examples, optionally, the housing 31 also includes a side wall 312 and a second wall 315. The side wall 312 is connected to the first wall 311 around the first wall 311 in the circumferential direction. The second wall 315 is connected to the side of the side wall 312 away from the first wall 311. The first wall 311, the side wall 312 and the second wall 315 enclose a second receiving cavity 316 for receiving the control structure 32. A second elastic support member 317 is provided on the side of the second wall 315 facing the first wall 311. The control structure 32 is installed between the first elastic support member 313 and the second elastic support member 317.

[0108] The first wall 311 and the second wall 315 are arranged opposite each other along the arrangement direction of the electronic control structure 321 to the first wall 311. The side wall 312 surrounds and connects between the first wall 311 and the second wall 315. In some embodiments, the first wall 311 may be the bottom wall of the housing 31 and the second wall 315 may be the top wall of the housing 31. The bottom wall refers to the wall that is directly connected to the battery box 10.

[0109] In some embodiments, a receiving groove can be formed by first connecting the first wall 311 and the side wall 312, and then the second wall 315 can be installed on the side wall 312, forming a second receiving cavity 316 for receiving the control structure 32. The connection between the second wall 315 and the side wall 312 can be achieved by snap-fitting or by fasteners such as bolts, which will not be elaborated further in this embodiment.

[0110] Of course, the first wall 311 can also be used as the top wall and the second wall 315 as the bottom wall. In this embodiment, the first wall 311 is used as the bottom wall of the shell 31 for description.

[0111] The materials of the first wall 311, the second wall 315, and the side wall 312 can all be thermoplastic materials such as polypropylene (PP), nylon (e.g., nylon 6), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polybutylene terephthalate (PBT), and thermosetting materials, and different components of reinforcing materials such as fibers and talc can be added according to the structural strength requirements.

[0112] A second elastic support 317 is provided on the second wall 315. The electronic control structure 321 of the control structure 32 is located between the first elastic support 313 and the second elastic support 317. This not only provides better installation stability for the control structure 32, but also uses the deformation of the first elastic support 313 and the second elastic support 317 to simultaneously dampen the control structure 32, further reducing the impact of external shocks or vibrations on the performance of the control structure 32. This can better improve the stability and reliability of the battery device 100.

[0113] In some embodiments, the number of second elastic support members 317 may also be multiple, and multiple second elastic support members 317 may be arranged one-to-one with multiple first elastic support members 313 about the electronic control structure 321.

[0114] In some examples, optionally, the second elastic support 317 includes a second spring 3171, which is mounted on the second wall 315, and a control structure 32 is mounted on the end of the second spring 3171 opposite to the second wall 315; and / or, the second elastic support 317 includes a second elastic column 3172, which is an elastic deformation member, with one end of the second elastic column 3172 connected to the second wall 315, and the control structure 32 mounted on the end of the second elastic column 3172 opposite to the first wall 311.

[0115] The second spring 3171 has the same structure as the first spring 3131 described above, and the connection method between the second spring 3171 and the second wall 315 is the same as the connection method between the first spring 3131 and the first wall 311 described above. Similarly, the second elastic column 3172 has the same structure as the first elastic column 3132 described above, and the connection method between the second elastic column 3172 and the second wall 315 is the same as the connection method between the first elastic column 3132 and the first wall 311 described above. This aspect will not be described in detail in this embodiment.

[0116] The second spring 3171 and the second elastic column 3172 can be replaced or combined. The second spring 3171 has good elastic deformation capability and can effectively absorb mechanical shock and vibration. The second elastic column 3172 has the advantages of simplified structure and convenient assembly.

[0117] Additionally, a second positioning member 318 can be configured on the second wall 315. The second positioning member 318 includes a second positioning post 3181 and a second annular flange 3182 connected to one end of the second positioning post 3181 near the second wall 315. The second positioning member 318 has the same or similar structure as the aforementioned first positioning member 314, and the second positioning member 318 is also arranged opposite to the limiting hole 3211. The second positioning member 318 can be used to limit the radial displacement of the second spring 3171, or it can match the limiting hole 3211 when the electronic control structure 321 moves upward to compress the second spring 3171, thereby limiting the radial displacement of the electronic control structure 321.

[0118] Taking the first elastic support 313 including a first spring 3131, the second elastic support 317 including a second spring 3171, and the first wall 311 provided with a first positioning member 314 and the second wall 315 provided with a second positioning member 318 as an example, when the electronic control structure 321 is subjected to vibration or impact and moves towards the first wall 311, the first spring 3131 is compressed and the second spring 3171 is stretched. The limiting hole 3211 of the electronic control structure 321 can be inserted into the first positioning post 3141 to limit the electronic control structure 321. After the external force disappears, the first spring 3131 and the second spring 3171 drive the electronic control structure 321 to reset. At this time, the limiting hole 3211 is not inserted into the first positioning post 3141.

[0119] Similarly, when the electronic control structure 321 is subjected to vibration or impact and moves towards the second wall 315, the second spring 3171 is compressed and the first spring 3131 is stretched. The limiting hole 3211 of the electronic control structure 321 can be inserted into the second positioning post 3181 of the second positioning member 318 to limit the electronic control structure 321. After the external force disappears, the first spring 3131 and the second spring 3171 drive the electronic control structure 321 to reset. At this time, the limiting hole 3211 is not inserted into the first positioning post 3141.

[0120] Taking the first elastic support 313 including the first elastic column 3132 and the second elastic support 317 including the second elastic column 3172 as an example, when the electronic control structure 321 is subjected to vibration or impact and moves towards the first wall 311 or the second wall 315, one of the first elastic column 3132 and the second elastic column 3172 is compressed and the other is stretched. After the external force is removed, the first elastic column 3132 and the second elastic column 3172 drive the electronic control structure 321 to reset through their own elasticity.

[0121] Combined again with the appendix Figure 4As shown, in some examples, the housing 31 may optionally include a sidewall 312 and a second wall 315, the sidewall 312 being connected to the first wall 311 circumferentially around the first wall 311, and the control structure 32 being spaced apart from the sidewall 312.

[0122] Taking the control structure 32, which includes the electronic control structure 321, as an example, the outer edge of the electronic control structure 321 is spaced from the side wall 312. The size of the gap is determined according to the actual size of the housing 31. For example, in some embodiments, the gap can be 1mm-100mm.

[0123] A gap is formed between the control structure 32 and the side wall 312 to reduce wear between the control structure 32 and the side wall 312 when the control structure 32 is displaced by impact or vibration.

[0124] In some examples, the housing 31 may optionally include a limiting member 319 connected to the side wall 312 and / or the first wall 311 and located within the gap between the control structure 32 and the side wall 312. The limiting member 319 is configured to limit the displacement of the control structure 32 in a first direction X and a second direction Y, which intersect and are parallel to the inner wall surface of the first wall 311, respectively.

[0125] The limiting member 319 can be connected to the side wall 312, or to the first wall 311, or to both the side wall 312 and the first wall 311. The connection method can be the mechanical connection method such as bonding or welding mentioned above, or the limiting member 319 can be integrally injection molded with the first wall 311 and the side wall 312. This embodiment will not list too many of these methods.

[0126] The first direction X can be the length direction of the electronic control structure 321, and the second direction Y can be the width direction of the electronic control structure 321. Both the first direction X and the second direction Y are perpendicular to the arrangement direction of the electronic control structure 321 to the first wall 311.

[0127] The limiting member 319 is configured to limit the displacement of the control structure 32 in the first direction X and the second direction Y, wherein the first direction X and the second direction Y each have two opposite sub-directions. In this embodiment, the limiting member 319 can limit the control structure 32 in one or two sub-directions in the first direction X, and limit the control structure 32 in one or two sub-directions in the second direction Y.

[0128] By using the limiting member 319 to limit the control structure 32 in the first direction X and the second direction Y, the displacement of the control structure 32 along the inner wall surface parallel to the first wall 311 is reduced, thereby improving the stability of the control structure 32 when subjected to impact or vibration.

[0129] In some examples, optionally, the limiting member 319 includes a first limiting plate 3191 and a second limiting plate 3192 connected at an angle, and the control structure 32 includes an electronic control structure 321, which includes an adjacent and intersecting first side and a second side. The first side extends along a first direction X, and the second side extends along a second direction Y. The first limiting plate 3191 is adjacent to the first side in the first direction X and is used to limit the displacement of the first side along the first direction X. The second limiting plate 3192 is adjacent to the second side in the second direction Y and is used to limit the displacement of the second side along the second direction Y.

[0130] The materials of the first limiting plate 3191 and the second limiting plate 3192 may be the same as or different from those of the first wall 311 and the side wall 312. The first limiting plate 3191 and the second limiting plate 3192 may be perpendicular to each other. The first limiting plate 3191 is used to limit the displacement of the electronic control structure 321 along a sub-direction of the first direction X, and the second limiting plate 3192 is used to limit the displacement of the electronic control structure 321 along a sub-direction of the second direction Y.

[0131] The limiting member 319 is designed to include a first limiting plate 3191 and a second limiting plate 3192 connected at an angle. The first limiting plate 3191 limits the displacement of the electronic control structure 321 along the first direction X, and the second limiting plate 3192 limits the displacement of the electronic control structure 321 along the second direction Y. The structure is simple and has a good limiting effect.

[0132] In some examples, optionally, the electronic control structure 321 is provided with a first diagonal 3212 and a second diagonal 3213 opposite each other along a third direction, the third direction being parallel to the inner wall surface of the first wall 311 and intersecting with the first direction X and the second direction Y respectively, and a limiting member 319 is provided at the interval between the first diagonal 3212 and the side wall 312 and at the interval between the second diagonal 3213 and the side wall 312 respectively.

[0133] A first limiting member 319 is provided at the interval between the first diagonal 3212 and the side wall 312, and a limiting member 319 is provided at the interval between the second diagonal 3213 and the side wall 312. When the first limiting member 319 includes a first limiting plate 3191 and a second limiting plate 3192, the two diagonally opposite first limiting plates 3191 can limit the two opposite sub-directions of the electronic control structure 321 in the first direction X.

[0134] Similarly, the two diagonally opposite second limiting plates 3192 can also limit the two opposite sub-directions of the electronic control structure 321 in the second direction Y, further improving the stability of the electronic control structure 321 when subjected to impact or vibration.

[0135] Finally, please see the appendix. Figure 2-10This application provides a battery device 100, including a housing 10, a battery cell 20, and an electronic control assembly 30. The housing 10 has a first receiving cavity 13; the battery cell 20 is installed in the first receiving cavity 13; the electronic control assembly 30 is installed in the first receiving cavity 13 and includes a housing 31, a control structure 32 located in the housing 31, and a first elastic support member 313. The housing 31 includes a first wall 311, the first elastic support member 313 is connected to the first wall 311, and the control structure 32 is installed on the first elastic support member 313. The first elastic support member 313 includes a first spring 3131, the first spring 3131 is installed on the first wall 311, and the control structure 32 is installed on the end of the first spring 3131 opposite to the first wall 311. A first positioning element 314 is provided on the first wall 311. A portion of a first spring 3131 is connected to the first positioning element 314. The first positioning element 314 is configured to restrict the radial movement of the first spring 3131. A control structure 32 is installed on the end of the first spring 3131 opposite to the first positioning element 314. The first spring 3131 is sleeved on the first positioning element 314. The first positioning element 314 includes a first positioning post 3141. The end of the first positioning post 3141 connected to the first wall 311 is provided with a first annular flange 3142. The first spring 3131 is sleeved with the first annular flange 3142. The control structure 32 includes an electrical control structure 321. The electrical control structure 321 is provided with a limiting hole 3211 opposite to the first positioning post 3141. The limiting hole 3211 is used for insertion and engagement with the first positioning post 3141. The radial dimension of the first spring 3131 is larger than the diameter of the limiting hole 3211. The first elastic support 313 includes a first elastic column 3132, which is an elastic deformation member. One end of the first elastic column 3132 is connected to the first wall 311, and the control structure 32 is installed at the end of the first elastic column 3132 opposite to the first wall 311. The housing 31 also includes a second wall 315, which is connected to the side wall 312 opposite to the first wall 311. The first wall 311, the side wall 312, and the second wall 315 enclose a second receiving cavity 316 for accommodating the control structure 32. A second elastic support 317 is provided on the side of the second wall 315 facing the first wall 311, and the control structure 32 is installed between the first elastic support 313 and the second elastic support 317. The second elastic support 317 includes a second spring 3171, which is mounted on the second wall 315, and a control structure 32 is mounted on the end of the second spring 3171 that is away from the second wall 315; and / or, the second elastic support 317 includes a second elastic column 3172, which is an elastic deformation member, with one end of the second elastic column 3172 connected to the second wall 315, and the control structure 32 mounted on the end of the second elastic column 3172 that is away from the first wall 311.The housing 31 also includes a side wall 312 and a second wall 315. The side wall 312 is circumferentially connected to the first wall 311, and there is a gap between the control structure 32 and the side wall 312. The housing 31 also includes a limiting member 319, which is connected to the side wall 312 and / or the first wall 311 and is located within the gap between the control structure 32 and the side wall 312. The limiting member 319 is configured to limit the displacement of the control structure 32 in a first direction X and a second direction Y. The first direction X and the second direction Y intersect and are parallel to the inner wall surface of the first wall 311, respectively. The limiting member 319 includes a first limiting plate 3191 and a second limiting plate 3192 connected at an angle. The control structure 32 includes an electrical control structure 321, which includes an adjacent and intersecting first side and a second side. The first side extends along a first direction X, and the second side extends along a second direction Y. The first limiting plate 3191 is adjacent to the first side in the first direction X and is used to limit the displacement of the first side along the first direction X. The second limiting plate 3192 is adjacent to the second side in the second direction Y and is used to limit the displacement of the second side along the second direction Y. The electrical control structure 321 has a first diagonal 3212 and a second diagonal 3213 opposite each other along a third direction. The third direction is parallel to the inner wall surface of the first wall 311 and intersects the first direction X and the second direction Y, respectively. A limiting member 319 is provided at the interval between the first diagonal 3212 and the side wall 312 and at the interval between the second diagonal 3213 and the side wall 312, respectively.

[0136] Based on the battery device 100 described above, this application embodiment also provides an electrical device, including the battery device 100 described above. The battery device 100 is used to provide electrical energy to the electrical device, which may be a vehicle 1000.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for the intermediate technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A battery device, characterized by, The battery pack comprises: a box body provided with a first accommodating cavity; a battery cell installed in the first accommodating cavity; and an electric control assembly installed in the first accommodating cavity, comprising a shell, a control structure located in the shell, and a first elastic support connected to the first wall of the shell, wherein the control structure is installed on an end of the first elastic support away from the first wall. The first elastic support comprises a first spring installed on the first wall, and the control structure is installed on an end of the first spring away from the first wall.

2. The battery device according to claim 1, characterized by The first wall is provided with a first positioning member, and a part of the first spring is connected to the first positioning member, wherein the first positioning member is configured to limit the radial movement of the first spring, and the control structure is installed on an end of the first spring away from the first positioning member.

3. The battery device of claim 2, wherein, The first spring is sleeved on the first positioning member.

4. The battery device of claim 3, wherein The first positioning member comprises a first positioning column provided with a first annular flange at an end connected to the first wall, and the first spring is sleeved with the first annular flange, wherein the control structure comprises an electric control structure provided with a limiting hole opposite to the first positioning column, and the limiting hole is used for plug-in cooperation with the first positioning column.

5. The battery device of claim 4, wherein, The radial dimension of the first spring is greater than the hole diameter of the limiting hole.

6. The battery device of claim 5, wherein, The first elastic support comprises a first elastic column which is an elastic deformation member, and an end of the first elastic column is connected to the first wall, wherein the control structure is installed on an end of the first elastic column away from the first wall.

7. The battery device of claim 1, wherein The shell further comprises a side wall connected to the first wall along the circumferential direction of the first wall, and a second wall connected to a side of the side wall away from the first wall, wherein the first wall, the side wall, and the second wall enclose a second accommodating cavity accommodating the control structure, and a side of the second wall facing the first wall is provided with a second elastic support, and the control structure is installed between the first elastic support and the second elastic support.

8. The battery device according to any one of claims 1 to 7, wherein The second elastic support comprises a second spring installed on the second wall, and the control structure is installed on an end of the second spring away from the second wall.

9. The battery device of claim 8, wherein, The second elastic support comprises a second elastic column which is an elastic deformation member, and an end of the second elastic column is connected to the second wall, wherein the control structure is installed on an end of the second elastic column away from the first wall. The shell further comprises a side wall connected to the first wall along the circumferential direction of the first wall, and the control structure has a spacing with the side wall.

10. The battery device according to any one of claims 1 to 7, wherein The shell further comprises a limiting member connected to the side wall and / or the first wall and located in the spacing between the control structure and the side wall, wherein the limiting member is configured to limit the displacement of the control structure in a first direction and a second direction, and the first direction and the second direction intersect and are respectively parallel to the inner wall surface of the first wall.

11. The battery device of claim 10, wherein, ​ 12. The battery device of claim 11, wherein, The limiting member comprises a first limiting plate and a second limiting plate which are connected at an angle, and the control structure comprises an electric control structure which comprises a first side and a second side which are adjacent and intersect, the first side extends along the first direction, the second side extends along the second direction, the first limiting plate is adjacent to the first side in the first direction and is used for limiting displacement of the first side along the first direction, and the second limiting plate is adjacent to the second side in the second direction and is used for limiting displacement of the second side along the second direction.

13. The battery device of claim 12, wherein, The electric control structure is provided with a first diagonal and a second diagonal which are opposite along a third direction, the third direction is parallel to an inner wall surface of the first wall and intersects the first direction and the second direction respectively, and the first diagonal and the second diagonal are respectively provided with one limiting member at intervals from the side wall.

14. An electrical device, characterized by A battery device as claimed in any one of claims 1 to 13, the battery device being used to provide electrical energy.

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