Battery device and electric equipment

Abstract

The utility model relates to a battery device and electric equipment. The battery device comprises a box body, a single battery, an abutting piece, a limiting assembly and a flexible circuit board, the single battery is contained in the box body, the abutting piece abuts against one end of the single battery, and the limiting assembly is arranged on the abutting piece and comprises a limiting piece provided with a limiting hole. The flexible circuit board is provided with a first end and a second end which are opposite, the first end is electrically connected with the battery monomer, and the second end penetrates through the limiting hole and is limited in the limiting hole. According to the flexible circuit board, the limiting assembly is arranged on the abutting piece, the second end of the flexible circuit board penetrates through the limiting hole, the second end of the flexible circuit board is limited through the limiting hole of the limiting piece, the problem that the second end of the flexible circuit board is warped is solved, and therefore the installation and working stability of the flexible circuit board is improved.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to battery devices and electrical equipment. Background Art

[0002] With the continuous development of the new energy industry, battery devices have been more and more widely used. In a battery device, the acquisition of signals such as the voltage and temperature of its battery cells plays a crucial role in the normal operation of the battery device.

[0003] In related technologies, flexible circuit boards are usually used to collect signals of the voltage and temperature of battery cells in a battery device. Among them, in the box body of a traditional battery device, abutting members such as end plates or cross beams are provided at the ends along the stacking direction of the battery cells to abut and limit the battery cells on both sides. One end of the flexible circuit board is connected to the battery cell, and the other end extends towards the inner wall surface of the box body through the abutting member. However, the end of the flexible circuit board extending towards the inner wall surface of the box body is prone to warping problems. Summary of the Utility Model

[0004] In view of the above problems, this application provides a battery device and electrical equipment, and by providing a limiting member to limit the end of the flexible circuit board, the problem that the end of the flexible circuit board is prone to warping is solved.

[0005] In a first aspect, this application provides a battery device, which includes:

[0006] A box body;

[0007] Battery cells, accommodated in the box body;

[0008] An abutting member, abutting against one end of the battery cell;

[0009] A limiting assembly, arranged on the abutting member and including a limiting member provided with a limiting hole;

[0010] A flexible circuit board, having opposite first and second ends; the first end is electrically connected to the battery cell, and the second end passes through the limiting hole and is limited within the limiting hole.

[0011] For the battery device provided by the embodiments of this application, by arranging a limiting assembly on the abutting member, the second end of the flexible circuit board passes through the limiting hole, so as to limit the second end of the flexible circuit board through the limiting hole of the limiting member, thereby preventing the second end of the flexible circuit board from warping, and thus improving the installation and working stability of the flexible circuit board.

[0012] In some embodiments, the limiting member is configured as an integrally injection-molded structure.

[0013] The battery device provided by the embodiment of the present application adopts an injection molding process, which can directly form a limiting hole on the limiting member without the need to additionally drill holes on the limiting member, so the processing is relatively fast and the structural strength is good.

[0014] In some embodiments, the limiting member is configured as a clamping structure capable of clamping the second end of the flexible circuit board.

[0015] The battery device provided by the embodiment of the present application clamps and positions the second end of the flexible circuit board by setting the limiting member as a clamping structure, and it is more convenient to install the flexible circuit board on the limiting member.

[0016] In some embodiments, the limiting member includes a first clamping plate and a second clamping plate arranged oppositely. One end of the first clamping plate and the second clamping plate is connected to each other, and the other end is arranged separately;

[0017] Wherein, the second end is installed between the first clamping plate and the second clamping plate through the separated ends of the first clamping plate and the second clamping plate.

[0018] The battery device provided by the embodiment of the present application constructs the aforementioned limiting hole between the first clamping plate and the second clamping plate by arranging the first clamping plate and the second clamping plate oppositely, and forms an open structure for the limiting hole by arranging one end of the first clamping plate and the second clamping plate separately, so that the flexible circuit board can be installed into the limiting hole from the separated end, thus making it more convenient to install the flexible circuit board on the limiting member. In this form of the limiting member structure, the assembly of the flexible circuit board and the limiting member is not restricted by the connector connected to the second end of the flexible circuit board, so the connector can be connected to the second end of the flexible circuit board in advance before the assembly of the flexible circuit board and the limiting member.

[0019] In some embodiments, the limiting member further includes a connecting portion connecting the first clamping plate and the second clamping plate. The first clamping plate and the second clamping plate are arranged at intervals, and the three cooperate to construct a limiting hole.

[0020] The battery device provided by the embodiment of the present application connects the first clamping plate and the second clamping plate by setting the connecting portion, and clamps and limits the flexible circuit board through the cooperation of the three.

[0021] In some embodiments, at least the edges of the first clamping plate and the second clamping plate at the position where the limiting hole is constructed are set as rounded corners.

[0022] The battery device provided by the embodiment of the present application can make the edge position where the limiting member contacts the flexible circuit board relatively smooth, which is beneficial to avoiding scratching the flexible circuit board, thereby improving the protection of the flexible circuit board.

[0023] In some embodiments, all the edges of the first clamping plate and the second clamping plate are set as rounded corners.

[0024] The battery device provided by the embodiment of the present application makes all the edges of the first clamping plate and the second clamping plate relatively smooth, which can protect the flexible circuit board and at the same time can form a protection for other adjacent circuits or components.

[0025] In some embodiments, along the thickness direction of the flexible circuit board, the size of the limiting hole is not less than the thickness of the limited flexible circuit board.

[0026] The battery device provided by the embodiment of the present application makes the flexible circuit board in contact with or keep a gap from the hole wall of the limiting hole, so as to avoid the limiting member from forming a squeezing stress on the flexible circuit board, thereby further improving the protection effect on the flexible circuit board.

[0027] In some embodiments, the limiting component further includes:

[0028] A connecting structure for connecting the limiting member to the abutting member.

[0029] In some embodiments, the connecting structure includes at least two fasteners, wherein some of the fasteners are arranged at one end where the first clamping plate and the second clamping plate are connected, and the other part of the fasteners is arranged at one end where the first clamping plate and the second clamping plate are separated.

[0030] The battery device provided by the embodiment of the present application firmly connects the limiting member to the abutting member by setting at least two fasteners, so that the limiting member provides a stable limiting effect on the flexible circuit board. Before the limiting member is installed on the abutting member, the flexible circuit board can be first placed into the limiting member, and after the assembly of the limiting member and the flexible circuit board is completed, each fastener can be tightened.

[0031] In some embodiments, the abutting member is configured as an end plate or a cross beam arranged in the box body.

[0032] The battery device provided by the embodiment of the present application is convenient for abutting the battery cell with the end plate or cross beam structure, and at the same time can provide an installation space for the limiting component.

[0033] In a second aspect, the present application further provides an electrical equipment, including the battery device in the above embodiment.

[0034] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. Description of the Drawings

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present application. Also, in all the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0036] Figure 1 is a schematic structural diagram of a vehicle according to some embodiments of the present application;

[0037] Figure 2 is an exploded structural diagram of a battery device according to some embodiments of the present application;

[0038] Figure 3 is a partial structural diagram of a battery device according to some embodiments of the present application;

[0039] Figure 4 is Figure 3 an enlarged structural diagram of part A in

[0040] Figure 5 is a schematic diagram of the cooperation between a flexible circuit board and a limiting member according to some embodiments of the present application;

[0041] Figure 6 is a partial structural diagram of a flexible circuit board provided by some embodiments of the present application;

[0042] Figure 7 is a structural diagram of a limiting member from one perspective according to some embodiments of the present application;

[0043] Figure 8 is a structural diagram of the limiting member from another perspective according to some embodiments of the present application.

[0044] The reference numerals in the specific embodiments are as follows:

[0045] 1000, vehicle; 100, battery device; 200, controller; 300, motor;

[0046] 10, box body; 11, first part; 12, second part;

[0047] 20, battery cell;

[0048] 30, abutting member;

[0049] 40, flexible circuit board;

[0050] 50, limiting assembly; 51, limiting member; 510, limiting hole; 511, first clamping plate; 512, second clamping plate; 513, connecting portion; 52, connecting structure. Specific Embodiments

[0051] The embodiments of the technical solution of the present application will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description of the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0053] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is more than two, unless otherwise specifically defined.

[0054] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0055] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0056] In the description of the embodiments of the present application, the term "a plurality of" refers to more than two (including two). Similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of pieces" refers to more than two pieces (including two pieces).

[0057] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present application.

[0058] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0059] Currently, from the perspective of the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydraulic, thermal, wind, and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of batteries, the market demand is also continuously increasing.

[0060] The battery mentioned in the embodiments of the present application refers to a single physical module that includes multiple battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application can include a battery module or a battery pack, etc. A battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquids or other foreign objects from affecting the charging or discharging of the battery cells.

[0061] In some embodiments, the box can be part of the chassis structure of a vehicle. For example, part of the box can become at least part of the floor of the vehicle, or part of the box can become at least part of the crossbeam and longitudinal beam of the vehicle.

[0062] In some embodiments, the battery can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0063] In the embodiments of the present application, the battery cell can be a secondary battery cell, and a secondary battery cell refers to a battery cell that can be activated by charging after discharging to continue use.

[0064] The battery cell can be a lithium-ion battery cell, a sodium-ion battery cell, a sodium-lithium-ion battery cell, a lithium-metal battery cell, a sodium-metal battery cell, a lithium-sulfur battery cell, a magnesium-ion battery cell, a nickel-metal hydride battery cell, a nickel-cadmium battery cell, a lead-acid battery cell, etc., and the embodiments of the present application are not limited thereto.

[0065] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, a multi-prismatic battery, and the multi-prismatic battery is, for example, a hexagonal prism battery, etc., and the present application has no special limitation.

[0066] The battery device proposed in the embodiments of the present application includes the above-mentioned battery cell. In the battery device, the acquisition of signals such as the voltage and temperature of its battery cell plays a key role in the normal operation of the battery device. In the related art, a flexible circuit board is used to collect the voltage and temperature signals of the battery cell.

[0067] The battery cells are stacked in sequence in the box body, and abutting members such as end plates or cross beams are arranged at the ends in the stacking direction to abut and limit the battery cells on both sides. One end of the flexible circuit board is connected to the battery cell, and the other end extends towards the inner wall surface of the box body through the abutting member. The end of the flexible circuit board extending towards the inner wall surface of the box body often warps, affecting the installation and working stability of the flexible circuit board.

[0068] To solve the above problems, in the embodiments of the present application, a battery device is proposed. By arranging a limiting member on the abutting member and arranging a limiting hole on the limiting member, the end of the flexible circuit board far from the battery cell passes through the limiting hole and is limited in the limiting hole, so as to limit the end of the flexible circuit board and solve the problem that the end of the flexible circuit board extending towards the inner wall surface of the box body often warps.

[0069] The battery device provided by the embodiments of the present application can be used in power-consuming devices such as vehicles, ships or aircraft, etc. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.

[0070] The embodiments of the present application also provide a power-consuming device using the battery device as a power source. The power-consuming device can be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy and an electric aircraft toy, etc., and the spacecraft can include an airplane, a rocket, a space shuttle and a spaceship, etc.

[0071] For the convenience of description, the following embodiments take a vehicle 1000, which is a power-consuming device of the embodiments of the present application, as an example for description.

[0072] Please refer to Figure 1 , Figure 1 which shows a schematic structural diagram of a vehicle 1000 provided by some embodiments of the present application. Taking an electrical device as the vehicle 1000 as an example, the vehicle 1000 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery device 100 is disposed inside the vehicle 1000, and the battery device 100 can be disposed at the bottom, head, or tail of the vehicle 1000. The battery device 100 can be used to supply power to the vehicle 1000. For example, the battery device 100 can be used as an operating power source for the vehicle 1000. The vehicle 1000 can 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, it is used for the working power requirements during the start, navigation, and driving of the vehicle 1000.

[0073] In some embodiments, the battery device 100 can not only be used as an operating power source for the vehicle 1000, but also be used as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0074] Please refer to Figure 2 , Figure 2 which is a schematic exploded view of the battery device 100 provided by some embodiments of the present application. In some embodiments, the battery device 100 includes a box body 10 and battery cells 20, and the battery cells 20 are accommodated in the box body 10.

[0075] The box body 10 is used to provide a accommodation space for the battery cells 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 can include a first part 11 and a second part 12, the first part 11 and the second part 12 are covered with each other, and the first part 11 and the second part 12 jointly define a accommodation space for accommodating the battery cells 20. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate-like structure. The first part 11 is covered on the opening side of the second part 12 so that the first part 11 and the second part 12 jointly define the accommodation space; the first part 11 and the second part 12 can also both be hollow structures with one side open, and the opening side of the first part 11 is covered on the opening side of the second part 12. Of course, the box body 10 formed by the first part 11 and the second part 12 can be of various shapes, such as a cylinder, a cuboid, etc.

[0076] Please refer to Figure 2, in the battery device 100, there can be multiple battery cells 20. The multiple battery cells 20 can be connected in series, in parallel, or in a combined series-parallel connection. A combined series-parallel connection means that among the multiple battery cells 20, there are both series and parallel connections. The multiple battery cells 20 can be directly connected in series, in parallel, or in a combined series-parallel connection together, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10. Of course, in the battery device 100, multiple battery cells 20 can also be first connected in series, in parallel, or in a combined series-parallel connection to form a battery module, and then multiple battery modules are connected in series, in parallel, or in a combined series-parallel connection to form a whole and are accommodated in the box 10. The battery device 100 can also include other structures. For example, the battery device 100 can also include a busbar component for realizing the electrical connection between the multiple battery cells 20.

[0077] Please refer to Figure 3 and Figure 4 , Figure 3 shows a schematic structural diagram of the battery device 100 provided in some embodiments of the present application; Figure 4 shows Figure 3 an enlarged structural diagram at position A in

[0078] An embodiment of the present application provides a battery device 100. The battery device 100 includes a box 10, battery cells 20, a contact member 30, a limiting assembly 50, and a flexible circuit board 40. The battery cells 20 are accommodated in the box 10. The contact member 30 abuts against one end of the battery cells 20. The limiting assembly 50 is disposed on the contact member 30 and includes a limiting member 51 provided with a limiting hole 510 (refer to Figure 6 ). The flexible circuit board 40 has a relative first end and a second end. The first end is electrically connected to the battery cells 20, and the second end passes through the limiting hole 510 and is limited within the limiting hole 510.

[0079] In the battery device 100 provided by the embodiment of the present application, by providing the limiting assembly 50 on the contact member 30, the second end of the flexible circuit board 40 passes through the limiting hole 510, so as to limit the second end of the flexible circuit board 40 through the limiting hole 510 of the limiting member 51, thereby preventing the second end of the flexible circuit board 40 from warping, and thus improving the installation and working stability of the flexible circuit board 40.

[0080] Specifically, the battery cells 20 are stacked in the X direction in the box 10, and a contact member 30 is provided at one end of the battery cells 20 along the X direction.

[0081] Optionally, the contact member 30 is configured as an end plate or a cross beam disposed in the box 10. The end plate or cross beam structure facilitates the abutment against the battery cells 20 and can provide an installation space for the limiting assembly 50 at the same time.

[0082] In some embodiments, the limiting member 51 is configured as an integrally molded structure by injection molding. With the injection molding process, the limiting hole 510 can be directly molded on the limiting member 51 without the need to drill additional holes on the limiting member 51, which is relatively fast in processing and has good structural strength. The limiting member 51 can be made of materials such as plastic, rubber, or resin to improve the protection of the flexible circuit board 40.

[0083] Please refer to Figure 5 and Figure 6 , Figure 5 which shows a schematic diagram of the cooperation between the flexible circuit board 40 and the limiting member 51 provided in some embodiments of the present application; Figure 6 which shows a partial structural schematic diagram of the flexible circuit board 40 provided in some embodiments of the present application. The flexible circuit board 40 is arranged as a long strip structure, with the first end connected to the battery cell 20, and a connector is provided at the second end. The second end extends towards the inner wall surface of the box body 10 through the abutting member 30 and is inserted into the box body 10 to facilitate connection with external devices.

[0084] In some embodiments, the limiting hole 510 on the limiting member 51 extends along the X direction, and the second end of the flexible circuit board 40 passes through the limiting hole 510. In this case, the flexible circuit board 40 can be first passed through the limiting hole 510 and then connected to the connector to prevent the connector from being unable to pass through the limiting hole 510 due to its large thickness.

[0085] In some embodiments, the limiting member 51 is arranged as a clamping structure capable of clamping the second end of the flexible circuit board 40. By arranging the limiting member 51 as a clamping structure, the second end of the flexible circuit board 40 is clamped and positioned, and it is more convenient to install the flexible circuit board 40 on the limiting member 51.

[0086] Please refer to Figure 7 and Figure 8 , Figure 7 which shows a structural schematic diagram of the limiting member 51 provided in some embodiments of the present application from one perspective; Figure 8 which shows a structural schematic diagram of the limiting member 51 provided in some embodiments of the present application from another perspective.

[0087] Optionally, the limiting member 51 includes a first clamping plate 511 and a second clamping plate 512 which are oppositely arranged. One end of the first clamping plate 511 and the second clamping plate 512 are connected to each other, and the other ends are arranged separately; wherein, the second end of the flexible circuit board 40 is installed between the first clamping plate 511 and the second clamping plate 512 through the separated ends of the first clamping plate 511 and the second clamping plate 512. By oppositely arranging the first clamping plate 511 and the second clamping plate 512, the aforementioned limiting hole 510 is constructed between the first clamping plate 511 and the second clamping plate 512, and by arranging the separated ends of the first clamping plate 511 and the second clamping plate 512, the limiting hole 510 forms an open structure in the Y direction, so that the flexible circuit board 40 can be installed into the limiting hole 510 from the separated end, thus facilitating the installation of the flexible circuit board 40 on the limiting member 51. In this structural form of the limiting member 51, the assembly of the flexible circuit board 40 and the limiting member 51 is not restricted by the connector connected to the second end of the flexible circuit board 40, so that the connector can be connected to the second end of the flexible circuit board 40 in advance before the flexible circuit board 40 and the limiting member 51 are assembled.

[0088] Specifically, the limiting member 51 further includes a connecting portion 513 connecting the first clamping plate 511 and the second clamping plate 512. The first clamping plate 511 and the second clamping plate 512 are arranged at intervals, and the three cooperate with each other to construct the limiting hole 510. In this way, by arranging the connecting portion 513 to connect the first clamping plate 511 and the second clamping plate 512, and the three cooperate with each other to clamp and limit the flexible circuit board 40.

[0089] Optionally, the connecting portion 513, the first clamping plate 511 and the second clamping plate 512 are integrally formed into a clamping structure by injection molding.

[0090] In some embodiments, limiting protrusions are provided on the mutually facing sides of the first clamping plate 511 and / or the second clamping plate 512, and the two limiting protrusions, the first clamping plate 511 and the second clamping plate 512 enclose the limiting hole 510. Alternatively, only one limiting protrusion is provided, and the connecting portion 513, the limiting protrusion, the first clamping plate 511 and the second clamping plate 512 enclose the limiting hole 510. Of course, as in the solution shown in the embodiments of the present application, no limiting protrusions are provided on the first clamping plate 511 and the second clamping plate 512, and the limiting hole 510 forms an open structure at the separated ends of the first clamping plate 511 and the second clamping plate 512, and the first clamping plate 511 and the second clamping plate 512 limit the flexible circuit board 40 in the Z direction, which can also prevent the flexible circuit board 40 from warping.

[0091] In some embodiments, at least the edges of the first clamping plate 511 and the second clamping plate 512 where the limiting holes 510 are formed are rounded. In this way, the edge positions where the limiting member 51 contacts the flexible circuit board 40 can be made relatively smooth, which is beneficial to avoiding scratching the flexible circuit board 40, thereby improving the protection of the flexible circuit board 40. In the present application, the injection molding process of the limiting member 51 makes it more convenient to machine rounded corners at the edges of the limiting member 51.

[0092] Furthermore, all the edges of the first clamping plate 511 and the second clamping plate 512 are rounded, so that all the edges of the first clamping plate 511 and the second clamping plate 512 are relatively smooth, which can not only protect the flexible circuit board 40 but also form a protection for other adjacent circuits or components.

[0093] In some embodiments, along the thickness direction of the flexible circuit board 40, the size of the limiting hole 510 is not less than the thickness of the limited flexible circuit board 40, so that the flexible circuit board 40 contacts the hole wall of the limiting hole 510 or maintains a gap, in order to avoid the limiting member 51 forming extrusion stress on the flexible circuit board 40, thereby further improving the protection effect on the flexible circuit board 40.

[0094] Please refer back to Figure 4 , the limiting component 50 further includes a connecting structure 52, and the connecting structure 52 is used to connect the limiting member 51 to the abutting member 30.

[0095] In some embodiments, the connecting structure 52 includes at least two fasteners, and some of the fasteners are arranged at one end where the first clamping plate 511 and the second clamping plate 512 are connected, and the other part of the fasteners is arranged at one end where the first clamping plate 511 and the second clamping plate 512 are separated. The fasteners can specifically be bolts or screws.

[0096] By setting at least two fasteners, the limiting member 51 is firmly connected to the abutting member 30, so that the limiting member 51 provides a stable limiting effect on the flexible circuit board 40. Before the limiting member 51 is installed on the abutting member 30, the flexible circuit board 40 can be first placed into the limiting member 51, and after the assembly of the limiting member 51 and the flexible circuit board 40 is completed, each fastener can be tightened.

[0097] In the embodiments of the present application, the connecting structure 52 includes two fasteners, and the two fasteners are respectively arranged at both ends of the limiting member 51 in the Y direction. Since one end of the first clamping plate 511 and the second clamping plate 512 is separated, after the first clamping plate 511 and the second clamping plate 512 are fixed by setting the fasteners, the fasteners also play a role in blocking the flexible circuit board 40, and can prevent the flexible circuit board 40 from moving out from the separated end of the first clamping plate 511 and the second clamping plate 512.

[0098] In some other embodiments, the connection structure 52 may also adopt structural forms such as gluing or snap connection, as long as the limiting member 51 can be firmly connected to the abutting member 30. In the embodiments of the present application, the specific structural form of the connection structure 52 is not limited.

[0099] The battery device 100 provided by the embodiments of the present application includes a box body 10, an abutting member 30, a limiting component 50, and a flexible circuit board 40. A battery cell 20 is arranged in the box body 10. The abutting member 30 is arranged at one end of the battery cell 20 along the X direction and is used for abutting against the battery cell 20. The limiting component 50 is arranged on the abutting member 30 and includes a limiting member 51 provided with a limiting hole 510. The flexible circuit board 40 has opposite first and second ends. The first end is electrically connected to the battery cell 20, and the second end is limited in the limiting hole 510. The limiting component 50 includes a limiting member 51 and a connection structure 52. The connection structure 52 is used to connect the limiting member 51 to the abutting member 30. The limiting member 51 is arranged as a clamping structure, including an integrally formed first clamping plate 511, a second clamping plate 512, and a connecting portion 513, and clamps and limits the second end of the flexible circuit board 40.

[0100] In the battery device 100 provided by the embodiments of the present application, by arranging the limiting component 50 on the abutting member 30, the second end of the flexible circuit board 40 is limited in the limiting hole 510 of the limiting member 51, so as to realize the limitation of the second end of the flexible circuit board 40 and prevent the second end of the flexible circuit board 40 from warping, thereby improving the installation and working stability of the flexible circuit board 40. The integrally formed limiting member 51 by injection molding is more convenient to process a rounded corner structure at its edge, so as to form good protection for the clamped flexible circuit board 40.

[0101] The embodiments of the present application also provide an electrical device, including the battery device 100 in the above embodiments.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that: The battery device comprises: Box; A battery cell is housed in the box; An abutment member abutting against one end of the battery cell; A limiting component, which is arranged on the abutting member and comprises a limiting member having a limiting hole; The flexible circuit board has a first end and a second end opposite to each other; the first end is electrically connected to the battery cell, and the second end passes through the limiting hole and is limited in the limiting hole.

2. The battery device according to claim 1, characterized in that: The limiting component is constructed as an integral structure formed by injection molding.

3. The battery device according to claim 1, characterized in that: The limiting member is configured as a clamping structure capable of clamping the second end of the flexible circuit board.

4. The battery device according to claim 3, characterized in that: The limiting member comprises a first clamping plate and a second clamping plate which are arranged opposite to each other, wherein one end of the first clamping plate and the second clamping plate are connected to each other and the other end thereof are arranged separately from each other; Wherein, the second end is installed between the first clamping plate and the second clamping plate through an end where the first clamping plate and the second clamping plate are separated.

5. The battery device according to claim 4, characterized in that: The limiting member also includes a connecting portion connecting the first clamping plate and the second clamping plate. The first clamping plate and the second clamping plate are arranged at an interval, and cooperate with the connecting portion to construct the limiting hole.

6. The battery device according to claim 5, characterized in that: At least the edges of the first clamping plate and the second clamping plate at the positions where the limiting holes are formed are configured as rounded corners.

7. The battery device according to claim 6, characterized in that: All edges of the first clamping plate and the second clamping plate are configured as rounded corners.

8. The battery device according to any one of claims 1 to 7, characterized in that: Along the thickness direction of the flexible circuit board, the size of the limiting hole is not less than the thickness of the limited flexible circuit board.

9. The battery device according to any one of claims 4 to 7, characterized in that: The limiting component also includes: A connecting structure is used to connect the limiting member to the abutting member.

10. The battery device according to claim 9, characterized in that: The connection structure includes at least two fasteners, wherein some of the fasteners are arranged at one end where the first clamping plate and the second clamping plate are connected, and other parts of the fasteners are arranged at one end where the first clamping plate and the second clamping plate are separated.

11. The battery device according to any one of claims 1 to 7, characterized in that: The abutment member is configured as an end plate or a crossbeam arranged in the box body.

12. An electrical device, characterized in that: Comprising the battery device according to any one of claims 1-11.

Images