Box body, battery and electric device

Abstract

The utility model provides a box body, a battery and an electric device. The box body comprises a supporting piece and an adjusting assembly. The supporting piece is used for supporting a functional component of the battery; the adjusting assembly is used for connecting the supporting piece and the functional component so as to adjust the distance of the functional component relative to the supporting piece. According to the box body provided by the utility model, the risk that the functional component interferes with other structures in the box body is reduced, the structure of the box body is simplified, the assembling difficulty of the functional component of the battery is reduced, and the development cost of the battery is also reduced, so that the box body provided by the invention is beneficial to reducing the manufacturing cost of the battery.

Description

Technical Field

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

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

[0003] In the development of battery technology, in addition to improving the performance of batteries, the cost of batteries is also an issue that needs to be considered. Therefore, how to reduce the manufacturing cost of batteries is an issue of continuous improvement in battery technology. Utility Model Content

[0004] The embodiments of the present application provide a box, a battery, and an electrical device, which can reduce the difficulty of assembling the battery and thus reduce the manufacturing cost of the battery.

[0005] In a first aspect, the present application provides a box including a support member and an adjustment assembly; the support member is used to support a functional component of a battery; the adjustment assembly is used to connect the support member and the functional component to adjust the distance of the functional component relative to the support member.

[0006] The box provided in the embodiment of the present application is provided with an adjustment component, so that during the installation of the functional component and the box, the distance between the adjustment component and the support member is adjusted, which is conducive to reducing the risk of interference between the functional component and other structures in the box, and is conducive to simplifying the structure of the box and reducing the difficulty of assembling the functional components of the battery. Since multiple batteries of different specifications can use the same adjustment component, this is also conducive to reducing the development cost of the battery. Therefore, the box provided in the embodiment of the present application is conducive to reducing the manufacturing cost of the battery.

[0007] In some embodiments, the adjustment assembly includes a seat body and an adjustment rod, one of the seat body and the adjustment rod has an internal thread, and the other has an external thread, the internal thread and the external thread cooperate with each other, one of the seat body and the adjustment rod is connected to the support member, and the other is used to connect to the functional component. In this way, the distance adjustment operation is more convenient and quick, and it is easy to control the specific value of the adjustment distance, and the threaded connection can be used to achieve self-locking of the internal thread and the external thread, which is conducive to simplifying the structure of the adjustment assembly.

[0008] In some embodiments, the seat body includes a seat body and a nut, the nut is connected to the seat body, the seat body is connected to the support, the nut has an internal thread, and the adjustment rod includes a screw rod, the screw rod has an external thread. In this way, it is beneficial to improve the connection reliability between the adjustment component and the support, and it is beneficial to improve the convenience of the adjustment component in adjusting the relative distance between the functional component and the support.

[0009] In some embodiments, the adjustment assembly further includes an anti-tilt member, the seat body has a receiving groove, the nut is received in the receiving groove, the screw has a strip hole, the strip hole extends along the axial direction of the screw and penetrates the screw in a first direction, the first direction intersects with the axial direction, the anti-tilt member is inserted in the strip hole, and both ends of the anti-tilt member along the first direction are disposed between the inner wall of the receiving groove and the nut. By providing the adjustment assembly with the anti-tilt member, the risk of the screw tipping over relative to the nut is reduced, and the structural stability of the box is improved.

[0010] In some embodiments, the inner wall of the receiving groove has a groove, and a part of the anti-rolling member is received in the groove. In this way, the structural stability of the anti-rolling member is improved through the cooperation between the groove and the anti-rolling member, and during the assembly of the anti-rolling member, the groove can be used to limit the anti-rolling member, which is conducive to improving the smoothness of the assembly process of the anti-rolling member.

[0011] In some embodiments, the area corresponding to the screw and the external thread has scale lines, so that the value of the specific adjusted distance can be read out according to the scale lines, and the distance of the functional component relative to the support member can be adjusted more conveniently and accurately.

[0012] In some embodiments, the adjustment rod further includes a limit portion and a connection portion, the limit portion is arranged between the connection portion and the external thread, and radially protrudes from the screw rod, and the connection portion is used to connect the functional component. The limit portion can limit the distance that the screw rod is screwed into the nut, so as to limit the movement distance of the functional component relative to the support member, and reduce the risk of the functional component colliding with related components and being damaged during the position adjustment process.

[0013] In some embodiments, the connection portion has a threaded section, and the threaded section is used to connect with the functional component. The structure of the connection portion is simple, and the connection is more convenient and quick.

[0014] In some embodiments, the length L of the inner thread and the outer thread that can cooperate with each other satisfies: 5mm≤L≤20mm. This is beneficial to improving the adaptability of the adjustment component to batteries of different specifications and further reducing the development cost of the battery.

[0015] In some embodiments, the box body further includes a support plate, the support plate is connected to the adjustment assembly, and the support plate is used to connect with the functional component. In this way, the functional component is connected to the support plate, and the functional component provides a certain support for the support plate, and the structure of the support plate is simple, which reduces the risk of interference between the support plate and the functional component. In addition, due to the existence of the support plate, functional components can be provided on both sides of the support plate, which is equivalent to adjusting the distance between the functional components and the support member on both sides of the support plate through a set of adjustment assemblies, which is conducive to improving the space utilization inside the battery.

[0016] In a second aspect, the battery of an embodiment of the present application includes a housing, a battery cell and a functional component provided in any of the above embodiments; the battery cell is accommodated in the housing; the functional component is connected to an adjustment component, and the adjustment component is configured to be able to adjust the distance of the functional component relative to the support.

[0017] The battery provided in the embodiment of the present application has the same technical effect as the box provided in any of the above embodiments, and will not be described in detail here.

[0018] In some embodiments, the functional component includes a battery management system component, and the battery management system component is electrically connected to the battery cell. It is convenient to adjust the position of the battery management system component, which is conducive to improving the reliability of the battery management system component.

[0019] In some embodiments, the box body further includes a support plate, the support plate is connected to the adjustment assembly, and at least two functional components are respectively connected to the two sides of the support plate. In this way, it is helpful to simplify the structure of the battery and to simplify the distance adjustment method between the functional component and the support member. In addition, the cooperation between the adjustment assembly and the support plate can achieve the support function for the functional component while also helping to reduce the risk of interference between the functional component and related structures.

[0020] In a third aspect, an embodiment of the present application provides an electrical device, including a box or a battery provided in any of the above embodiments, and the battery is used to provide electrical energy.

[0021] The electrical device provided in the embodiment of the present application has the same technical effect as the box or battery provided in the above embodiment, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0023] Figure 1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the structure of a battery provided in an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the structure of a battery module in a battery provided in an embodiment of the present application;

[0026] Figure 4 is a schematic diagram of the explosion structure of a battery cell in a battery provided in an embodiment of the present application;

[0027] Figure 5 is a schematic diagram of the structure of another battery provided in an embodiment of the present application;

[0028] Figure 6 is a structural schematic diagram of an adjustment component in a box provided in an embodiment of the present application;

[0029] Figure 7 It is a schematic diagram of the main structure of a battery provided in an embodiment of the present application;

[0030] Figure 8 It is a schematic diagram of the exploded structure of the adjustment component in the box provided in the embodiment of the present application;

[0031] Fig. 9 is a schematic diagram of the structure of another battery provided in an embodiment of the present application;

[0032] Fig.10 It is a front view of another battery provided in an embodiment of the present application.

[0033] In the drawings, the drawings are not necessarily drawn to scale.

[0034] Description of reference numerals:

[0035] 1. Vehicle; 1a. Motor; 1b. Controller;

[0036] 10. Battery; 11. Box; 111. First box part; 112. Second box part; 12. Support; 13. Adjustment assembly; 131. Base; 131a. Internal thread; 1311. Base body; 1311a. Accommodation groove; 1311b. Groove; 1312. Nut; 132. Adjustment rod; 132a. External thread; 1321. Screw; 1321a. Strip hole; 1322. Positioning part; 1323. Connecting part; 1323a. Threaded section; 133. Anti-tilt member; 14. Support plate;

[0037] 20. Battery module;

[0038] 30. Battery cell; 31. Casing; 311. End cover; 312. Shell;

[0039] 40. Functional components;

[0040] X, first direction; Y, axial direction. DETAILED DESCRIPTION

[0041] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0042] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0043] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0044] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0045] The term "plurality" used in the present application refers to two or more (including two).

[0046] In the present application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, etc., and the embodiments of the present application do not limit this. The battery cell may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this.

[0047] The battery mentioned in the embodiments of the present application may include one or more battery cells to provide a single physical module with higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, in parallel or in mixed connection through a busbar component.

[0048] In some embodiments, the battery may be a battery module; when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0049] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are accommodated in the case.

[0050] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0051] In some embodiments, the battery may be an energy storage device, which includes an energy storage container, an energy storage cabinet, and the like.

[0052] 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 a battery cell, active ions (such as lithium ions) are embedded and removed between the positive electrode and the negative electrode. The separator is set between the positive electrode and the negative electrode to prevent the positive and negative electrodes from short-circuiting, while allowing active ions to pass through.

[0053] 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.

[0054] As an example, the positive electrode current collector has two surfaces facing each other in its thickness direction, and the positive electrode active material is disposed on either or both of the two facing surfaces of the positive electrode current collector.

[0055] 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, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium with silver surface treatment may be used. The composite current collector may include a polymer material base and a metal layer. The composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0056] As an example, the positive electrode active material may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and their respective modified compounds. However, the present application is not limited to these materials, and other conventional materials that can be used as positive electrode active materials for batteries may also be used. These positive electrode active materials may be used alone or in combination of two or more.

[0057] In some embodiments, the positive electrode may be foamed carbon or foamed metal. The foamed metal may be foamed nickel, foamed copper, foamed aluminum or foamed alloy. When the foamed metal is used as the positive electrode, the positive electrode active material may not be provided on the surface of the foamed metal, but of course, the positive electrode active material may also be provided. As an example, lithium source material, potassium metal or sodium metal may also be filled or / and deposited in the foamed metal, and the lithium source material is lithium metal and / or lithium-rich material.

[0058] In some embodiments, the negative electrode may be a negative electrode sheet, and the negative electrode sheet may include a negative electrode current collector.

[0059] As an example, the negative electrode current collector may be a metal foil or a composite current collector. For example, as the metal foil, silver surface treated 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 and a metal layer. The composite current collector may be formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0060] As an example, the negative electrode sheet may include a negative electrode current collector and a negative electrode active material disposed on at least one surface of the negative electrode current collector.

[0061] As an example, the negative electrode current collector has two surfaces facing each other in its thickness direction, and the negative electrode active material is disposed on either or both of the two facing surfaces of the negative electrode current collector.

[0062] As an example, the negative electrode active material may adopt the negative electrode active material for battery cells known in the art. As an example, the negative electrode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, lithium titanate, etc.

[0063] In some embodiments, the negative electrode may be foamed carbon or foamed metal. The foamed metal may be foamed nickel, foamed copper, foamed aluminum or foamed alloy, etc. When the foamed metal is used as the negative electrode sheet, the surface of the foamed metal may not be provided with a negative electrode active material, but of course, a negative electrode active material may also be provided.

[0064] As an example, a lithium source material, potassium metal or sodium metal may be filled or / and deposited in the negative electrode current collector, and the lithium source material is lithium metal and / or lithium-rich material.

[0065] In some embodiments, the material of the positive electrode current collector may be aluminum, and the material of the negative electrode current collector may be copper.

[0066] In some embodiments, the electrode assembly further includes a separator, which is disposed between the positive electrode and the negative electrode. The present application has no particular limitation on the type of separator, and any known porous separator with good chemical stability and mechanical stability can be selected.

[0067] As an example, the main material of the isolation membrane can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramics.

[0068] In some embodiments, the battery cell further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. The present application has no specific restrictions on the type of electrolyte, which can be selected according to needs. The electrolyte can be liquid, gel or solid.

[0069] In some embodiments, the electrode assembly is a wound structure, wherein the positive electrode sheet and the negative electrode sheet are wound into the wound structure.

[0070] In some embodiments, the electrode assembly is a laminate structure.

[0071] A plurality of positive electrode sheets and a plurality of negative electrode sheets can be provided respectively, and the plurality of positive electrode sheets and the plurality of negative electrode sheets can be alternately stacked.

[0072] As an example, a plurality of positive electrode sheets may be provided, and the negative electrode sheet may be folded to form a plurality of stacked folded segments, with a positive electrode sheet being sandwiched between adjacent folded segments.

[0073] As an example, both the positive electrode sheet and the negative electrode sheet are folded to form a plurality of folded sections that are stacked.

[0074] As an example, a plurality of separators may be provided, each of which is provided between any adjacent positive electrode sheets or negative electrode sheets.

[0075] As an example, the separator may be disposed continuously, and disposed between any adjacent positive electrode sheets or negative electrode sheets by folding or winding.

[0076] In some embodiments, the shape of the electrode assembly can be cylindrical, flat, or polygonal.

[0077] In some embodiments, the electrode assembly is provided with tabs, which can lead current out of the electrode assembly. The tabs include a positive tab and a negative tab.

[0078] The battery cell further includes a housing, and a housing is formed inside the housing to accommodate the electrode assembly. The housing can protect the electrode assembly from the outside to prevent external foreign matter from affecting the charging or discharging of the electrode assembly.

[0079] In the related art, the battery management system and other related functional components of the battery are usually connected to the box body through a supporting structure. In order to maintain the installation stability of the related functional structures in the box body and increase the contact area between the functional components and the supporting structure, the supporting structure is usually arranged in a "J" shape or other structures. Due to the manufacturing error of the supporting structure, the supporting structure usually interferes with the functional components during the installation process of the functional components with the supporting structure, and different supporting structures need to be designed for batteries of different specifications. This increases the difficulty of battery development and assembly.

[0080] In view of this, an embodiment of the present application provides a technical solution, which provides a box body with an adjustment component, and adjusts the distance between the functional component and the support member through the adjustment component to facilitate the assembly of the functional component. The adjustment component can be applicable to batteries of various specifications, which is beneficial to reducing the development cost of the battery and reducing the process difficulty during the battery assembly process.

[0081] The technical solution described in the embodiments of the present application is applicable to a box, a battery including the box, and an electrical device using the battery.

[0082] The electrical device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, and the like; the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, and the like; the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like; the electric tool may include a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, and the like. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0083] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0084] like Figure 1 As shown, a battery 10 is provided inside the vehicle 1. The battery 10 may be provided at the bottom, head, or tail of the vehicle 1. The battery 10 may be used to power the vehicle 1, for example, the battery 10 may be used as an operating power source for the vehicle 1.

[0085] The vehicle 1 may further include a controller 1b and a motor 1a. The controller 1b is used to control the battery 10 to supply power to the motor 1a, for example, to meet the power requirements of the vehicle 1 during starting, navigation and driving.

[0086] In some embodiments of the present application, the battery 10 can not only serve as an operating power source for the vehicle 1, but also serve as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0087] See also Figure 2 As shown, the battery 10 includes a battery cell ( Figure 2 (not shown) The battery 10 may further include a housing 11 for accommodating the battery cells.

[0088] The box 11 is used to accommodate battery cells, and the box 11 can be in various structural forms. In some embodiments, the box 11 may include a first box portion 111 and a second box portion 112. The first box portion 111 and the second box portion 112 cover each other. The first box portion 111 and the second box portion 112 jointly define a storage space for accommodating battery cells. The second box portion 112 may be a hollow structure with one end open, the first box portion 111 is a plate-like structure, and the first box portion 111 covers the open side of the second box portion 112 to form a box 11 with a storage space; the first box portion 111 and the second box portion 112 may also be hollow structures with one side open. The open side of the first box portion 111 covers the open side of the second box portion 112 to form a box 11 with a storage space. Of course, the first box portion 111 and the second box portion 112 may be in various shapes, such as a cylinder, a cuboid, etc.

[0089] In order to improve the sealing performance after the first box body 111 and the second box body 112 are connected, a sealing member, such as a sealant, a sealing ring, etc., may be further provided between the first box body 111 and the second box body 112 .

[0090] Assuming that the first box body portion 111 covers the second box body portion 112 , the first box body portion 111 can also be referred to as an upper box cover, and the second box body portion 112 can also be referred to as a lower box body.

[0091] In the battery 10, there can be one or more battery cells. If there are multiple battery cells, the multiple battery cells can be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells are connected in series and in parallel. Multiple battery cells can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells can be accommodated in the box 11. Figure 3 As shown, multiple battery cells may be connected in series, in parallel or in mixed series to form a battery module 20. Multiple battery strings are then connected in series, in parallel or in mixed series to form a whole, and are accommodated in the box 11.

[0092] The battery 10 may also not have the box 11, but include multiple battery cells connected in series or in parallel. After the multiple battery cells are connected in series or in parallel, they are fixed by structures such as steel belts or binding straps, and then the multiple batteries 10 are connected in series or in parallel to form a new energy storage unit.

[0093] In some embodiments, multiple battery cells in the battery 10 may be electrically connected via a busbar component to achieve parallel connection, series connection, or mixed connection of the multiple battery cells in the battery 10 .

[0094] Please refer to Figure 4 The battery cell 30 provided in the embodiment of the present application includes an electrode assembly 32 and a shell 31. The shell 31 has a receiving cavity, and the electrode assembly 32 is received in the receiving cavity.

[0095] The outer shell 31 may include a shell 312 and an end cover 311 . When assembling the battery cell 30 , the electrode assembly 32 may be placed in the receiving cavity first, and then the end cover 311 may be covered on the shell 312 . Then, the electrolyte may be injected into the receiving cavity through the electrolyte injection port on the end cover 311 .

[0096] In some embodiments, the housing 31 may also be used to contain electrolytes, such as electrolytes. The housing 31 may be in various structural forms.

[0097] The outer shell 31 can be in various shapes, such as a cylinder, a cuboid, etc. The shape of the outer shell 31 can be determined according to the specific shape of the electrode assembly 32. For example, if the electrode assembly 32 is a cylindrical structure, the outer shell 31 can be a cylindrical structure. If the electrode assembly 32 is a cuboid structure, the outer shell 31 can be a cuboid structure. Figure 4 In the figure, illustratively, the housing and the electrode assembly 32 are both rectangular parallelepiped structures.

[0098] The shell 31 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0099] There may be one or more electrode assemblies 32 contained in the housing 31. Figure 4 In the embodiment, there are two electrode assemblies 32 housed in the housing 31.

[0100] First, as Figures 5 to 8 As shown, the box body 11 provided in the present application is used for the battery 10, and the box body 11 includes a support member 12 and an adjustment assembly 13, the support member 12 is used to support the functional component 40 of the battery 10, and the adjustment assembly 13 is used to connect the support member 12 and the functional component 40 to adjust the distance between the functional component 40 and the support member 12.

[0101] The support member 12 may be a beam or sheet metal structure, and is used to support the functional component 40 of the battery 10, and may be located in the box 11. The functional component 40 may be any structural module disposed inside the battery 10, such as an electrical component or a battery management system component.

[0102] The battery 10 may have one, two or more functional components 40, and the functional component 40 is connected to the support member 12 via the adjustment component 13. The functional component 40 may be directly connected to the adjustment component 13, or the functional component 40 may be indirectly connected to the adjustment component 13 via an intermediate connector, all of which may achieve the purpose of the embodiments of the present application.

[0103] The adjustment component 13 can adjust the distance between the functional component 40 and the support member 12, so the adjustment component 13 can telescope along the first direction X, or the adjustment component 13 can telescope along two intersecting directions to adjust the distance between the functional component 40 and the support member 12 along the two intersecting directions.

[0104] The adjustment component 13 can be any structure capable of adjusting the size. For example, the adjustment component 13 can adjust the size of the threaded fit by means of an internal threaded fit, so as to adjust the size of the adjustment component 13, or the adjustment component 13 can adjust the size of the adjustment component 13 by means of a pin and the fit of different holes. Therefore, the adjustment component 13 can adjust the distance of the functional component 40 relative to the support 12 steplessly, or the adjustment component 13 can adjust the distance of the functional component 40 relative to the support 12 in a step-less manner.

[0105] By adjusting the component 13 to adjust the distance of the functional component 40 relative to the support member 12, the functional component 40 can be installed at a suitable position inside the box 11, thereby reducing the risk of interference between the functional component 40 and related structural parts and helping to reduce the difficulty of assembling the functional component 40 and the box 11.

[0106] It is understandable that for batteries 10 of different specifications, the size and installation position of the functional component 40 are not the same. By setting the adjustment component 13 to adjust the position of the functional component 40 relative to the support 12, the same adjustment component 13 can be suitable for multiple batteries 10 of different specifications, which is beneficial to improve the adaptability of batteries 10 of different specifications to the adjustment component 13 and reduce the development cost of the battery 10.

[0107] The box 11 provided in the embodiment of the present application is provided with an adjustment component 13, so that during the installation process of the functional component 40 and the box 11, the distance of the adjustment component 13 relative to the support 12 is adjusted, which is conducive to reducing the risk of interference between the functional component 40 and other structures in the box 11, and is conducive to simplifying the structure of the box 11 and reducing the difficulty of assembling the functional component 40 of the battery 10. In addition, since multiple batteries 10 of different specifications can use the same adjustment component 13, it is also conducive to reducing the development cost of the battery 10. Therefore, the box 11 provided in the embodiment of the present application is conducive to reducing the manufacturing cost of the battery 10.

[0108] In some embodiments, Figure 6 and Figure 8 As shown, the adjustment assembly 13 includes a seat body 131 and an adjustment rod 132, one of the seat body 131 and the adjustment rod 132 has an internal thread 131a, and the other has an external thread 132a, the internal thread 131a and the external thread 132a cooperate with each other, one of the seat body 131 and the adjustment rod 132 is connected to the support member 12, and the other is used to connect to the functional component 40.

[0109] One of the seat body 131 and the adjusting rod 132 is connected to the support member 12, and the other is used to be connected to the functional component 40. Then, the seat body 131 can be connected to the support member 12, and the adjusting rod 132 can be connected to the functional component 40, or the adjusting rod 132 can be connected to the support member 12, and the seat body 131 can be connected to the functional component 40. The connection between the seat body 131 or the adjusting rod 132 and the functional component 40 can be a direct connection, or an indirect connection through an intermediate connecting member.

[0110] If one of the seat body 131 and the adjustment rod 132 has an internal thread 131a and the other has an external thread 132a, the seat body 131 can be provided with an internal thread 131a and the adjustment rod 132 can be provided with an external thread 132a, or the adjustment rod 132 can be provided with an internal thread 131a and the seat body 131 can be provided with an external thread 132a.

[0111] The cooperation between the internal thread 131a and the external thread 132a allows the adjustment rod 132 to rotate clockwise or counterclockwise relative to the seat body 131 to achieve the size of the cooperation between the internal thread 131a and the external thread 132a. The distance adjustment operation is more convenient and quick. During the adjustment process, it is easy to control the specific value of the adjustment distance, and the self-locking of the internal thread 131a and the external thread 132a can be achieved by threaded connection. After the adjustment component 13 is adjusted into place, the distance between the functional component 40 and the support member 12 can be automatically locked. This is conducive to simplifying the structure of the adjustment component 13.

[0112] In some embodiments, Figure 6 and Figure 8 As shown, the seat body 131 includes a seat body 1311 and a nut 1312, the nut 1312 is connected to the seat body 1311, the seat body 1311 is connected to the support member 12, the nut 1312 has an internal thread 131a, and the adjustment rod 132 includes a screw rod 1321, and the screw rod 1321 has an external thread 132a.

[0113] A seat body 131 is provided to be connected to the support member 12, and a screw rod 1321 is used to be connected to the functional component 40, and the screw rod 1321 has an external thread 132a, and the seat body 131 includes a nut 1312. In the process of adjusting the distance of the functional component 40 relative to the support member 12, the nut 1312 can be rotated clockwise or counterclockwise, which is beneficial to improving the connection reliability between the adjustment component 13 and the support member 12, and is beneficial to improving the convenience of the adjustment component 13 in adjusting the relative distance between the functional component 40 and the support member 12.

[0114] In some embodiments, Figure 6 and Figure 8 As shown, the adjustment assembly 13 also includes an anti-roll member 133, the seat body 1311 has a receiving groove 1311a, the nut 1312 is received in the receiving groove 1311a, the screw rod 1321 has a strip hole 1321a, the strip hole 1321a extends along the axial direction Y of the screw rod 1321, and penetrates the screw rod 1321 along the first direction X, the first direction X intersects with the axial direction Y, the anti-roll member 133 is inserted into the strip hole 1321a, and both ends of the anti-roll member 133 along the first direction X are arranged between the inner wall of the receiving groove 1311a and the nut 1312.

[0115] Both ends of the anti-roll member 133 along the first direction X are arranged between the inner wall of the receiving groove 1311a and the nut 1312, so the anti-roll member 133 can be clearance-fitted with one of the receiving groove 1311a and the nut 1312, or the anti-roll member 133 can abut against the inner wall of the receiving groove 1311a and the nut 1312.

[0116] Since the anti-tilt member 133 is inserted into the bar-shaped hole 1321 a of the screw rod 1321 , the anti-tilt member 133 can move along the axial direction Y relative to the screw rod 1321 during the rotation of the screw rod 1321 relative to the nut 1312 .

[0117] The two ends of the anti-roll member 133 along the first direction X are arranged between the inner wall of the accommodating groove 1311a and the nut 1312. When the screw rod 1321 is subjected to a tendency to tilt toward any end of the first direction X relative to the nut 1312, the anti-roll member 133 can suppress the tilting of the screw rod 1321 through the force of the nut 1312 and the inner wall of the accommodating groove 1311a.

[0118] Therefore, by providing the adjustment assembly 13 with an anti-tilt member 133 , the risk of the screw rod 1321 tipping over relative to the nut 1312 can be reduced, which helps to improve the structural stability of the box body 11 .

[0119] In some embodiments, Figure 6 and Figure 8 As shown, the inner wall of the receiving groove 1311 a has a groove 1311 b , and a portion of the anti-tilt member 133 is received in the groove 1311 b .

[0120] In this way, the cooperation between the groove 1311b and the anti-roll piece 133 is conducive to improving the structural stability of the anti-roll piece 133, and during the assembly of the anti-roll piece 133, the groove 1311b can be used to limit the anti-roll piece 133, which is conducive to improving the smoothness of the assembly process of the anti-roll piece 133.

[0121] In some embodiments, the area of ​​the screw 1321 corresponding to the external thread 132a has scale lines.

[0122] During the rotation of the screw 1321 relative to the nut 1312, the adjusted distance can be calculated by reading the setting of the scale line. In this way, it is convenient to read the value of the specific adjusted distance according to the scale line, and the distance of the functional component 40 relative to the support member 12 can be adjusted more conveniently and accurately.

[0123] In some embodiments, Figure 6 and Figure 8 As shown, the adjustment rod 132 further includes a limiting portion 1322 and a connecting portion 1323 . The limiting portion 1322 is disposed between the connecting portion 1323 and the external thread 132 a and protrudes radially. The connecting portion 1323 is used to connect the functional component 40 .

[0124] The connection portion 1323 may be of any structural type. The connection portion 1323 may be directly connected to the functional component 40 , or the connection portion 1323 may be connected to the functional component 40 via an intermediate structural member.

[0125] By setting a limiter and setting the limiter portion 1322 between the connecting portion 1323 and the external thread 132a, the limiter portion 1322 can limit the distance that the screw rod 1321 is screwed into the nut 1312, so as to limit the movement distance of the functional component 40 relative to the support member 12, thereby reducing the risk of the functional component 40 being damaged by collision with related components during position adjustment.

[0126] In some embodiments, Figure 6 and Figure 8 As shown, the connection portion 1323 has a threaded section 1323 a , and the threaded section 1323 a is used to be connected to the functional component 40 .

[0127] In this way, during the connection process, the connection part 1323 and the functional component 40 can be directly connected through the threaded cooperation of the threaded section 1323a and the functional component 40, or the connection between the connection part 1323 and the functional component 40 can be achieved through the threaded connection of the external thread 132a of the connection part 1323 and the fastener. The structure of the connection part 1323 is simple, and the connection is more convenient and quick.

[0128] In some embodiments, the length L of the internal thread 131a and the external thread 132a that can cooperate with each other satisfies: 5mm≤L≤20mm.

[0129] Optionally, L can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm or 20mm, etc.

[0130] It is understandable that the length of the inner thread 131a and the outer thread 132a that can cooperate with each other can be the range of variation of the distance between the functional component 40 and the support 12 that can be adjusted by the adjustment assembly 13. If 5mm≤L≤20mm is set, the adjustable distance between the functional component 40 and the support 12 can be selected between 5mm and 20mm, which is conducive to improving the adaptability of the adjustment assembly 13 to batteries 10 of different specifications and further reducing the development cost of the battery 10.

[0131] In some embodiments, Fig. 9 and Fig.10 As shown, the box body 11 further includes a support plate 14 , which is connected to the adjustment assembly 13 , and the support plate 14 is used to be connected to the functional component 40 .

[0132] In this way, the functional component 40 is connected to the support plate 14, and the functional component 40 provides a certain support for the support plate 14, and the structure of the support plate 14 is simple, which reduces the risk of interference between the support plate 14 and the functional component 40. In addition, due to the existence of the support plate 14, the functional component 40 can be provided on both sides of the support plate 14, which is equivalent to adjusting the distance between the functional component 40 and the support member 12 on both sides of the support plate 14 through a set of adjustment components 13, which is conducive to improving the space utilization inside the battery 10.

[0133] Second, as Figure 5 and Figure 7 As shown, the battery 10 provided in the embodiment of the present application includes a box body 11, a battery cell 30 and a functional component 40 provided in any of the above embodiments. The battery cell 30 is accommodated in the box body 11, and the functional component 40 is connected to the adjustment component 13, which is configured to be able to adjust the distance between the functional component 40 and the support member 12.

[0134] The functional component 40 may be any structural component of the battery 10 , such as a power distribution component, a battery management system component, and the like.

[0135] The battery 10 provided in the embodiment of the present application has the same technical effect as the box 11 provided in any of the above embodiments, and will not be described in detail here.

[0136] In some embodiments, the functional component 40 includes a battery management system component that is electrically connected to the battery cell 30 .

[0137] The battery management system component can be used to manage the battery 10 in the battery 10. Specifically, the battery management system component can obtain the current, voltage, temperature, pressure and other parameters of the battery cell 30 during its operation, and judge the working state of the battery cell 30 based on the obtained parameters to control whether the battery cell 30 continues to work or performs pressure relief operations, which is beneficial to improving the reliability performance of the battery 10.

[0138] The functional component 40 includes a battery management system component, which facilitates adjustment of the position of the battery management system component and helps to improve the reliability of the battery management system component.

[0139] In some embodiments, Fig. 9 and Fig.10 As shown, the box body 11 further includes a support plate 14 , which is connected to the adjustment assembly 13 , and at least two functional components 40 are respectively connected to two sides of the support plate 14 .

[0140] In this way, by adjusting the coordination of the assembly 13 and the support plate 14, the distance between at least two functional components 40 and the support member 12 is adjusted, which is conducive to simplifying the structure of the battery 10 and simplifying the distance adjustment method between the functional component 40 and the support member 12. Moreover, the coordination of the adjustment assembly 13 and the support plate 14, while achieving the supporting effect on the functional component 40, is also conducive to reducing the risk of interference between the functional component 40 and related structures.

[0141] In a third aspect, the electrical device provided in the embodiments of the present application includes the housing 11 provided in any of the above embodiments or the battery 10 provided in any of the above embodiments, and the battery 10 is used to provide electrical energy.

[0142] The electrical device provided in the embodiment of the present application has the same technical effect as the box 11 or the battery 10 provided in any of the above embodiments, and thus will not be described in detail here.

[0143] In some embodiments, Figures 5 to 10As shown, the box 11 provided in the embodiment of the present application includes a support member 12, an adjustment assembly 13 and a support plate 14. The support member 12 is used to support the functional component 40 of the battery 10, and the adjustment assembly 13 is used to connect the support member 12 and the functional component 40 to adjust the distance of the functional component 40 relative to the support member 12. The adjustment assembly 13 includes a seat body 131, an anti-tilt member 133 and an adjustment rod 132, the seat body 131 includes a seat body 1311 and a nut 1312, the nut 1312 is connected to the seat body 1311, the seat body 1311 is connected to the support member 12, the nut 1312 has an internal thread 131a, and the adjustment rod 132 includes a screw rod 1321, the screw rod 1321 has an external thread 132a, the internal thread 131a and the external thread 132a cooperate with each other, and the length L that the internal thread 131a and the external thread 132a can cooperate with each other satisfies: 5mm≤L≤20mm. The seat body 1311 has a receiving groove 1311a, and the nut 1312 is received in the receiving groove 1311a. The screw rod 1321 has a strip hole 1321a, which extends along the axial direction Y of the screw rod 1321 and penetrates the screw rod 1321 along the first direction X, and the first direction X intersects with the axial direction Y. The anti-tilt member 133 is inserted into the strip hole 1321a, and both ends of the anti-tilt member 133 along the first direction X are arranged between the inner wall of the receiving groove 1311a and the nut 1312. The inner wall of the receiving groove 1311a has a groove 1311b, and a part of the anti-tilt member 133 is received in the groove 1311b. The area of ​​the screw rod 1321 corresponding to the external thread 132a has a scale line. The adjusting rod 132 has a limiting portion 1322 and a connecting portion 1323. The limiting portion 1322 is disposed between the connecting portion 1323 and the external thread 132a and radially protrudes from the screw rod 1321. The connecting portion 1323 is used to connect the functional component 40. The connecting portion 1323 has a threaded section 1323a, and the threaded section 1323a is used to connect with the functional component 40.

[0144] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A box for a battery, characterized in that: The box body comprises: A support member, used to support the functional components of the battery; The adjusting assembly is used to connect the supporting member and the functional component to adjust the distance between the functional component and the supporting member.

2. The box according to claim 1, characterized in that: The adjustment assembly includes a seat body and an adjustment rod, one of the seat body and the adjustment rod has an internal thread, and the other has an external thread, the internal thread and the external thread cooperate with each other, one of the seat body and the adjustment rod is connected to the support member, and the other is used to connect with the functional component.

3. The box according to claim 2, characterized in that: The seat body includes a seat body and a nut, the nut is connected to the seat body, the seat body is connected to the support member, the nut has the internal thread, and the adjustment rod includes a screw rod, and the screw rod has the external thread.

4. The box according to claim 3, characterized in that: The adjustment assembly also includes an anti-roll member, the seat body has a receiving groove, the nut is received in the receiving groove, the screw rod has a strip hole, the strip hole extends along the axial direction of the screw rod and penetrates the screw rod along a first direction, the first direction intersects with the axial direction, the anti-roll member is inserted in the strip hole, and both ends of the anti-roll member along the first direction are arranged between the inner wall of the receiving groove and the nut.

5. The box according to claim 4, characterized in that: The inner wall of the receiving groove is provided with a groove, and a part of the anti-tilt member is received in the groove.

6. The box according to any one of claims 3 to 5, characterized in that: The area of ​​the screw rod corresponding to the external thread has scale lines.

7. The box according to any one of claims 3 to 5, characterized in that: The adjusting rod further comprises a limiting portion and a connecting portion, wherein the limiting portion is arranged between the connecting portion and the external thread and protrudes radially from the screw rod, and the connecting portion is used for connecting the functional component.

8. The box according to claim 7, characterized in that: The connecting portion has a threaded section, and the threaded section is used for connecting with the functional component.

9. The box according to any one of claims 2 to 5, characterized in that: The length L of the internal thread and the external thread that can cooperate with each other satisfies: 5mm≤L≤20mm.

10. The box according to any one of claims 1 to 5, characterized in that: The box body also includes a support plate, which is connected to the adjustment assembly and is used to be connected to the functional component.

11. A battery, characterized in that: include: The box according to any one of claims 1 to 10; A battery cell is contained in the box; The functional component is connected to the adjustment assembly, and the adjustment assembly is configured to be able to adjust the distance of the functional component relative to the support member.

12. The battery according to claim 11, characterized in that The functional components include a battery management system component electrically connected to the battery cells.

13. The battery according to claim 11 or 12, characterized in that: The box body also includes a support plate, which is connected to the adjustment assembly, and at least two functional components are respectively connected to two sides of the support plate.

14. An electrical device, characterized in that: The invention comprises a casing as claimed in any one of claims 1 to 10 or a battery as claimed in any one of claims 11 to 13, wherein the battery is used for providing electrical energy.

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