Battery device and electric device

Abstract

The utility model discloses a battery device and a power utilization device. The battery device comprises a battery module, a control panel, an electrical assembly and a flexible circuit board, and the control panel is arranged at one end of the battery module; the electrical assembly is located on the control panel; the flexible circuit board comprises a first part and a second part, the first part is arranged on the battery module, the second part is connected between the first part and the electrical component, and at least part of the second part is bent and extends to increase the length of the second part. According to the battery device, the bent and extended part is arranged on the flexible circuit board, so that when the battery device is maintained, the bent and extended part of the flexible circuit board can extend under the action of tensile force, and the battery maintenance difficulty and the battery maintenance cost can be reduced.

Description

Technical Field

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

[0002] Battery maintenance is important in many aspects. In terms of performance, the capacity of the battery in use will decrease and the internal resistance will increase due to changes in the structure of the electrode material. Maintenance can slow down this process by replenishing the electrolyte and other means to maintain stable performance and extend the service life. In terms of safety, abnormalities such as overcharging and over-discharging can easily cause dangers such as battery fire and explosion. Regular maintenance can monitor parameters such as voltage, current, temperature, and check the appearance and connection status to eliminate hidden dangers in time and ensure safe use. In the application field, whether it is medical, communication or aerospace, maintenance can ensure that the battery can supply power normally in special environments and at critical moments, and maintain stable operation of the system. From an environmental protection perspective, it can reduce heavy metal pollution, and standardize the treatment of waste generated by maintenance, which is conducive to resource recycling. In short, battery maintenance is of great significance to performance, safety, application and environmental protection, and is a key link to ensure the good operation of batteries.

[0003] However, in the related art, during the battery maintenance process, the cumbersome disassembly and assembly of various components not only easily increases the difficulty of maintenance, but also easily increases the maintenance cost. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a battery device, which can reduce the difficulty of maintenance and reduce the maintenance cost.

[0005] According to an embodiment of the present application, the battery device includes: a battery module; a control board, which is arranged at one end of the battery module; an electrical component, which is located on the control board; a flexible circuit board, which includes a first part and a second part, the first part is arranged on the battery module, and the second part is connected between the first part and the electrical component, wherein at least a portion of the second part is bent and extended to increase the length of the second part.

[0006] The battery device of the present application provides a bent and extended portion on the flexible circuit board. When the battery device is maintained, the bent and extended portion of the flexible circuit board can stretch under the action of tension, so that the electrical components connected to the flexible circuit board and the control board on which the electrical components are installed can be moved without being separated from the flexible circuit board. In this way, the workload of disassembly and assembly can be reduced without affecting battery maintenance. Even if disassembly and assembly is required, the extended flexible circuit board can effectively provide disassembly and assembly space, thereby reducing the difficulty of disassembly and assembly, and ultimately reducing the difficulty and cost of battery maintenance.

[0007] In some embodiments of the present application, the second part includes a first bending portion that extends in a curved manner, and the first bending portion includes: a first straight section, a first bending section, and a second straight section, and the first bending section is connected between the first straight section and the second straight section to construct a U-shaped bending structure.

[0008] In the above example, by making the first bending portion construct a U-shaped bending structure, it can be beneficial for the first bending portion to stretch evenly, avoid stress concentration, and increase the durability of the flexible circuit board; it can stabilize the displacement of electrical components and reduce collision interference; it can also buffer vibration impact, improve electrical connection stability and anti-interference ability, provide strong protection for battery operation and maintenance, and help the battery work efficiently and stably.

[0009] In some embodiments of the present application, the first straight section and the second straight section are parallel, and / or the first bent section is in a semicircular arc shape.

[0010] In the above example, the parallel first straight section and second straight section make the flexible circuit board evenly stressed in the main extension direction, reducing the risk of local distortion and deformation. The semicircular curved section can effectively reduce the stress concentration at the bend, because the curved structure can evenly disperse the tension, avoiding the hidden dangers of creases and fractures that may occur in right-angle bends, greatly improving the structural integrity and reliability of the flexible circuit board in repeated stretching and daily use, ensuring the stability of the electrical connection, extending its service life, and reducing the battery maintenance cost caused by damage to the flexible circuit board.

[0011] In some embodiments of the present application, magnetic elements capable of attracting each other are disposed on both the first straight section and the second straight section.

[0012] In the above example, when the first straight section and the second straight section are provided with mutually attracting magnetic parts, when the battery device is in normal use without maintenance, the mutual attraction of the magnetic parts can keep the second part of the flexible circuit board in a stable shape and structure, reduce unnecessary shaking and displacement caused by equipment vibration or slight external force, thereby reducing the risk of loose electrical connections and ensuring the stability of signal transmission and power distribution. During maintenance, if it is necessary to move components such as the control panel, it only needs to apply appropriate external force to overcome the magnetic attraction, so that it can be flexibly adjusted, which is convenient to operate and facilitates subsequent resetting, improving maintenance efficiency and convenience.

[0013] In some embodiments of the present application, the first bending portion further includes a third straight section and a second bending section, and the second bending section is connected between the second straight section and the third straight section, so that the first bending portion constructs an S-shaped bending structure.

[0014] In the above example, the S-shaped bending structure can achieve a greater degree of length extension within a limited space, and its flexibility is further improved compared to the simple U-shaped structure. During battery maintenance, when it is necessary to move electrical components or control panels, the S-shaped bending structure can provide more room for extension, reduce interference with other surrounding components, and make maintenance operations smoother. Moreover, the S-shaped continuous bending design can better disperse the tension and avoid stress concentration in one place, effectively reducing the probability of damage to the flexible circuit board during repeated extension and contraction, and significantly improving the durability of the flexible circuit board.

[0015] In some embodiments of the present application, the first straight section, the second straight section and the third straight section are all parallel, and / or the first bent section is in the shape of a semicircular arc; and / or the second bent section is in the shape of a semicircular arc.

[0016] In the above example, the first straight section, the second straight section and the third straight section are all designed to be parallel, making the overall layout of the flexible circuit board more regular. The semicircular curved section can greatly reduce the stress concentration phenomenon. Whether it is slight vibration in daily operation or stretching operation during maintenance, it can effectively prevent the flexible circuit board from being damaged or connection failure due to stress problems, which can better enhance the stability and durability of the flexible circuit board, reduce the complexity and cost of battery maintenance, and ensure the long-term stable and reliable operation of the battery system.

[0017] In some embodiments of the present application, at least two of the first straight section, the second straight section and the third straight section are provided with magnetic attracting members that can attract each other.

[0018] In the above example, by providing a magnetic suction component, the flexible circuit board can be fixed during daily use, reducing the impact of shaking on the electrical connection, assisting in stability and positioning during maintenance, and improving battery stability and maintenance convenience.

[0019] In some embodiments of the present application, a plurality of first bending portions are provided.

[0020] In the above example, providing multiple first bending parts can improve the flexibility and adaptability of the flexible circuit board and optimize space utilization. Multiple bending parts can evenly disperse the tension, reduce the stress of a single part, enhance the anti-damage ability, reduce the obstacles to maintenance due to compact layout, and ensure stable operation and convenient maintenance of the battery.

[0021] In some embodiments of the present application, the battery device also includes a storage piece, which is installed on the control panel, and the storage piece is provided with a storage channel. A section of the second part is connected to the first part, and the other end is passed through the storage channel to be connected to the electrical component. The second part includes a bent portion that extends curved, and at least a portion of the bent portion is received in the storage channel.

[0022] In the above example, the storage piece and its storage channel provide a regular storage space for the bent portion of the flexible circuit board, effectively preventing it from shaking randomly inside the battery device and getting entangled with other components, ensuring the neatness and orderliness of the internal structure of the battery, and reducing the risk of line failures caused by physical interference. Secondly, when the battery is subjected to vibration or impact, the storage channel can buffer and protect the flexible circuit board, reduce damage caused by external forces, and improve the durability of the flexible circuit board. Furthermore, during the battery maintenance process, this storage design enables maintenance personnel to more clearly locate and operate the flexible circuit board, which can reduce maintenance time and difficulty, improve the maintainability and reliability of the entire battery device, and help extend the service life of the battery device and reduce maintenance costs.

[0023] In some embodiments of the present application, the bending portion includes a first bending portion and a second bending portion located in the storage channel, the second bending portion is connected between the first bending portion and the electrical component, the first bending portion includes a first straight section, a first bending section and a second straight section, the first bending section is connected between the first straight section and the second straight section to construct a U-shaped bending structure; the second bending portion includes: a fourth straight section, a fifth straight section and a third bending section, the third bending section is connected between the fourth straight section and the fifth straight section to construct a U-shaped bending structure, wherein the length of the fourth straight section is greater than the length of the first straight section and greater than the length of the second straight section, and the length of the fifth straight section is greater than the length of the first straight section and greater than the length of the second straight section.

[0024] In the above example, the first U-shaped bend can effectively utilize space and buffer tension in the storage channel, reduce stress concentration, and ensure the stability of the flexible circuit board. The special design of the second bend, with its longer fourth and fifth straight sections, can further increase the extension range of the flexible circuit board. During battery maintenance, it can provide more space for the movement of the control board and electrical components, reducing the difficulty and risk of disassembly and assembly. At the same time, the two U-shaped structures cooperate with each other, so that the entire flexible circuit board can more flexibly adapt to different orientation requirements in the complex internal layout of the battery device, cleverly bypass other components, optimize the spatial layout, reduce the possibility of interference with other components, improve the overall reliability and stability of the battery device, and also help to improve the production and assembly efficiency of the battery and the convenience of subsequent maintenance.

[0025] In some embodiments of the present application, the second portion includes a bent portion that extends in a curved manner, and a thickness of the bent portion is greater than a thickness of the first portion, so that a stiffness coefficient of the bent portion is greater than a stiffness coefficient of the first portion.

[0026] In the above example, since the thickness of the bending portion is greater than that of the first portion, its stiffness coefficient increases accordingly. During the operation of the battery device, when subjected to external forces such as vibration, impact, or pulling force caused by the displacement of other components, the bending portion can maintain its own shape relatively stable by virtue of the larger stiffness coefficient, effectively preventing excessive bending or twisting deformation, thereby ensuring the reliability of the electrical connection and reducing the risk of signal transmission interruption or electrical failure caused by deformation of the flexible circuit board. In addition, the thicker bending portion can store more elastic potential energy, thereby allowing a greater degree of elastic deformation. During battery maintenance, the bending portion can be stretched after being subjected to external force, thereby enabling the electrical components and the control board to move. When the external force is removed, the bending portion can be restored to its original shape according to its elastic deformation ability, thereby making it difficult for the flexible circuit board to interfere with other electrical components during the battery maintenance process, providing more reliable operating conditions for maintenance work and improving maintenance efficiency and safety.

[0027] The present application also provides an electrical device having the battery device of the above embodiment.

[0028] According to the electric device of the embodiment of the present application, the electric device may include a battery device, and the battery device is used to store or provide electric energy.

[0029] In the above example, by providing the battery device of the above example, the electrical device of the present application can better maintain the battery device.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 It is a schematic diagram of the structure of a battery device according to some embodiments of the present application.

[0033] Figure 2 It is a schematic diagram of the structure in which the second part of the flexible circuit board is bent and extended in some embodiments of the present application.

[0034] Figure 3 yes Figure 2 Magnified view of area B.

[0035] Figure 4 This is a schematic diagram of the structure of a flexible circuit board, a storage component and a low-voltage connector according to some embodiments of the present application.

[0036] Figure 5 for Figure 4Partial cross-sectional view along line AA.

[0037] Figure 6 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application.

[0038] Reference numerals:

[0039] 1000, vehicle; 100, battery device; 200, controller; 300, motor;

[0040] 10. Control board; 30. Flexible circuit board; 40. Electrical components; 401. Low voltage connector;

[0041] 1. Part I;

[0042] 2. The second part; 20. The bending part;

[0043] 21, first bending portion; 211, first straight section; 212, second straight section; 213, first bending section; 214, third straight section; 215, second bending section;

[0044] 22, second bending portion; 221, fourth straight section; 222, fifth straight section; 223, third bending section;

[0045] 3. Magnetic attraction piece; 4. Storage piece; 41. Storage channel. DETAILED DESCRIPTION

[0046] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0047] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0048] In the description of this application, it should 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0050] Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

[0051] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding, and its maintenance work is crucial.

[0052] Battery maintenance is important in many aspects. In terms of performance, the capacity of the battery in use will decrease and the internal resistance will increase due to changes in the structure of the electrode material. Maintenance can slow down this process by replenishing the electrolyte and other means to maintain stable performance and extend the service life. In terms of safety, abnormalities such as overcharging and over-discharging can easily cause dangers such as battery fire and explosion. Regular maintenance can monitor parameters such as voltage, current, temperature, and check the appearance and connection status to eliminate hidden dangers in time and ensure safe use. In the application field, whether it is medical, communication or aerospace, maintenance can ensure that the battery can supply power normally in special environments and at critical moments, and maintain stable operation of the system. From an environmental protection perspective, it can reduce heavy metal pollution, and standardize the treatment of waste generated by maintenance, which is conducive to resource recycling. In short, battery maintenance is of great significance to performance, safety, application and environmental protection, and is a key link to ensure the good operation of batteries.

[0053] However, in the related art, during the battery maintenance process, the cumbersome disassembly and assembly of various components not only easily increases the difficulty of maintenance, but also easily increases the maintenance cost.

[0054] Based on this, the present application proposes a battery device 100, by providing a bent and extended portion on the flexible circuit board 30, when the battery device 100 is maintained, the bent and extended portion of the flexible circuit board 30 can stretch under the action of tension, so that the electrical component 40 connected to the flexible circuit board 30, and the control board 10 installed with the electrical component 40 can be moved without being separated from the flexible circuit board 30. In this way, the workload of disassembly and assembly can be reduced without affecting battery maintenance. Even if disassembly and assembly is required, the extended flexible circuit board 30 can effectively provide disassembly and assembly space, thereby reducing the difficulty of disassembly and assembly, and ultimately reducing the difficulty of battery maintenance and the cost of battery maintenance.

[0055] Exemplarily, the electrical assembly 40 may include a low voltage connector 401 mounted on the control board 10 .

[0056] Please refer to Figure 1 , Figure 1 is a schematic structural diagram of a battery device 100 according to some embodiments of the present application.

[0057] Please refer to Figure 2 , Figure 2 It is a schematic structural diagram of the second part 2 of the flexible circuit board 30 in some embodiments of the present application being bent and extended.

[0058] According to some embodiments of the present application, the battery device 100 includes a battery module, a control board 10, an electrical component 40 and a flexible circuit board 30, wherein the control board 10 is arranged at one end of the battery module, the electrical component 40 is located on the control board 10, and the flexible circuit board 30 includes a first part 1 and a second part 2, the first part 1 is arranged on the battery module, and the second part 2 is connected between the first part 1 and the electrical component 40, wherein at least a portion of the second part 2 is bent and extended to increase the length of the second part 2.

[0059] Exemplarily, it may be a section of the second portion 2 that is bent and extended; exemplary, it may also be that the entire second portion 2 is bent and extended.

[0060] Exemplarily, the second part 2 is bent and extended. For the convenience of description, the bent and extended part is referred to as the bending portion 20. The setting of the bending portion 20 makes the flexible circuit board 30 of the second part 2 between the first part 1 and the electrical component 40 redundant. In other words, the length of the bending portion 20 after straightening is L1, and after the electrical component 40 is assembled, the distance between the electrical component 40 and the battery module is L2, then L1 is greater than L2. As for the specific dimensions of L1 and L2, as well as the specific dimensions of L1-L2=△L, △L, they can be determined according to actual needs and are not limited in this application.

[0061] In terms of battery maintenance, when it is necessary to inspect, repair or replace parts inside the battery, in this application, since the bent and extended part of the flexible circuit board 30 can stretch under the action of tension, the electrical components 40 and the control board 10 connected thereto can be moved without disconnecting the connection. This greatly reduces the workload of disassembly and assembly, and reduces the risk of damage to connecting parts that may be caused by frequent disassembly and assembly, such as broken pins, poor contact and other problems. Even if partial disassembly and assembly operations are still required in some cases, the stretched flexible circuit board 30 can provide sufficient operating space, which is convenient for maintenance personnel to work and effectively reduces the difficulty of disassembly and assembly. From a cost perspective, the cost of component loss and labor costs caused by improper disassembly and assembly are reduced, which ultimately reduces the total cost of battery maintenance, improves the maintainability and economy of the battery device 100, and extends the overall service life of the battery device 100, laying a solid foundation for the stable operation and long-term use of the battery in various application scenarios.

[0062] In the above example, by providing a bent and extended portion on the flexible circuit board 30, when the battery device 100 is maintained, the bent and extended portion of the flexible circuit board 30 can stretch under the action of tension, so that the electrical component 40 connected to the flexible circuit board 30, and the control board 10 on which the electrical component 40 is installed, can be moved without being separated from the flexible circuit board 30. In this way, the workload of disassembly and assembly can be reduced without affecting battery maintenance. Even if disassembly and assembly is required, the extended flexible circuit board 30 can effectively provide disassembly and assembly space, thereby reducing the difficulty of disassembly and assembly, and ultimately reducing the difficulty of battery maintenance and the cost of battery maintenance.

[0063] In some embodiments of the present application, reference Figure 2 and Figure 3 , Figure 2 It is a schematic diagram of the structure in which the second part of the flexible circuit board is bent and extended in some embodiments of the present application. Figure 3 yes Figure 2 The second part 2 includes a first bending portion 21 that extends in a curved manner. The first bending portion 21 includes a first straight section 211, a first bending section 213, and a second straight section 212. The first bending section 213 is connected between the first straight section 211 and the second straight section 212 to form a U-shaped bending structure.

[0064] The design of the U-shaped bending structure enables the first bending portion 21 to effectively increase the extension length of the flexible circuit board 30 within a limited space. When subjected to tension, the U-shaped bending structure can achieve a relatively uniform stretching deformation, avoiding stress concentration at a certain point and causing the flexible circuit board 30 to tear or be damaged, thereby improving the reliability and durability of the flexible circuit board 30 during maintenance operations. Secondly, the existence of the U-shaped bending structure enables the electrical component 40 and the control board 10 to obtain a more stable and predictable displacement path when moving their positions, facilitating precise control of their moving range, reducing the possibility of collision or interference with other battery components due to displacement deviation, and ensuring the integrity and stability of the internal structure of the battery device 100. Furthermore, the structure can buffer the slight vibration or impact generated by the battery device 100 under different working conditions to a certain extent, reduce the impact on the electrical connection, further improve the electrical connection stability and anti-interference ability of the entire battery device 100, and facilitate long-term stable operation and maintenance of the battery.

[0065] In the above example, by making the first bending portion 21 construct a U-shaped bending structure, it can be beneficial for the first bending portion 21 to stretch evenly, avoid stress concentration, and increase the durability of the flexible circuit board 30; it can stabilize the displacement of the electrical components 40 and reduce collision interference; it can also buffer vibration impact, improve the stability and anti-interference force of the electrical connection, provide strong protection for battery operation and maintenance, and help the battery work efficiently and stably.

[0066] In some embodiments of the present application, reference Figure 2 and Figure 3 The first straight section 211 and the second straight section 212 are parallel, and / or the first bent section 213 is in a semicircular arc shape.

[0067] Exemplarily, the first straight section 211 and the second straight section 212 are parallel and the first bent section 213 is in a semicircular arc shape.

[0068] Exemplarily, only the first straight section 211 and the second straight section 212 are parallel.

[0069] Exemplarily, only the first bending section 213 is semicircular.

[0070] In the above example, the parallel first straight section 211 and second straight section 212 make the flexible circuit board 30 evenly stressed in the main extension direction, reducing the risk of local distortion and deformation. The semicircular arc-shaped bending section can effectively reduce the stress concentration at the bending point, because the arc structure can evenly disperse the tension, avoid the hidden dangers of creases and fractures that may occur in right-angle bending, greatly improve the structural integrity and reliability of the flexible circuit board 30 in repeated stretching and daily use, ensure the stability of the electrical connection, extend its service life, and reduce the battery maintenance cost caused by damage to the flexible circuit board 30.

[0071] In some embodiments of the present application, reference Figure 2 and Figure 3 The first straight section 211 and the second straight section 212 are both provided with magnetic attracting members 3 that can attract each other.

[0072] In the above example, when the first straight section 211 and the second straight section 212 are provided with magnetic attracting parts 3 that can attract each other, when the battery device 100 is in normal use without maintenance, the magnetic attracting parts 3 attract each other to keep the second part 2 of the flexible circuit board 30 in a stable shape and structure, reducing unnecessary shaking and displacement caused by equipment vibration or slight external force, thereby reducing the risk of loose electrical connection and ensuring the stability of signal transmission and power distribution. During maintenance, if it is necessary to move the control board 10 and other components, it only needs to apply appropriate external force to overcome the magnetic attraction force, so that it can be flexibly adjusted, which is convenient to operate and is conducive to subsequent reset, improving maintenance efficiency and convenience.

[0073] In some embodiments of the present application, reference Figure 2 and Figure 3 The first bending portion 21 further includes a third straight section 214 and a second bending section 215. The second bending section 215 is connected between the second straight section 212 and the third straight section 214, so that the first bending portion 21 constructs an S-shaped bending structure.

[0074] In the above example, the S-shaped bending structure can achieve a greater degree of length extension within a limited space, and its flexibility is further improved compared to a simple U-shaped structure. During battery maintenance, when it is necessary to move the electrical component 40 or the control board 10, the S-shaped bending structure can provide more ample extension space, reduce interference with other surrounding components, and make maintenance operations smoother. Moreover, the S-shaped continuous bending design can better disperse the tension and avoid stress concentration in a certain place, effectively reducing the probability of damage to the flexible circuit board 30 during repeated extension and contraction, and significantly improving the durability of the flexible circuit board 30.

[0075] In some embodiments of the present application, reference Figure 2 and Figure 3 The first straight section 211, the second straight section 212 and the third straight section 214 are all parallel, and / or the first bending section 213 is in a semicircular arc shape; and / or the second bending section 215 is in a semicircular arc shape.

[0076] Exemplarily, the first straight section 211 , the second straight section 212 and the third straight section 214 are all parallel, and the first bent section 213 and the second bent section 215 are both semicircular arc-shaped.

[0077] Exemplarily, only the first straight section 211 , the second straight section 212 and the third straight section 214 are parallel, and the bent section may be in other suitable shapes.

[0078] Exemplarily, only the first bending section 213 is in a semicircular arc shape, the second bending section 215 is in other shapes, and the first straight section 211, the second straight section 212 and the third straight section 214 are all parallel.

[0079] In the above example, the first straight section 211, the second straight section 212 and the third straight section 214 are all designed to be parallel, so that the overall layout of the flexible circuit board 30 is more regular. The semicircular curved section can greatly reduce the stress concentration phenomenon. Whether it is a slight vibration in daily operation or a stretching operation during maintenance, it can effectively prevent the flexible circuit board 30 from being damaged or failing in connection due to stress problems, and can better enhance the stability and durability of the flexible circuit board 30, reduce the complexity and cost of battery maintenance, and ensure the long-term stable and reliable operation of the battery system.

[0080] In some embodiments of the present application, reference Figure 2 and Figure 3 At least two of the first straight section 211, the second straight section 212 and the third straight section 214 are provided with magnetic attracting members 3 that can attract each other.

[0081] Exemplarily, the magnetic attraction member 3 is disposed on the first straight section 211 and the second straight section 212 .

[0082] Exemplarily, the magnetic attraction member 3 is disposed on the second straight section 212 and the third straight section 214 .

[0083] Exemplarily, the magnetic attraction member 3 is disposed on the first straight section 211 and the third straight section 214 .

[0084] When at least two of the first straight section 211, the second straight section 212 and the third straight section 214 are provided with magnetic elements 3 that can attract each other, during the normal operation of the battery device 100, the magnetic elements 3 attract each other to effectively fix the shape and position of the flexible circuit board 30. This can significantly reduce the possibility of displacement, distortion and deformation of the flexible circuit board 30 caused by factors such as vibration, shaking or accidental collision during the operation of the equipment, thereby ensuring the stability and reliability of the electrical connection, and ensuring the accuracy and continuity of signal transmission and power distribution. During the battery maintenance stage, the presence of the magnetic element 3 can, on the one hand, maintain the relative regularity of the flexible circuit board 30 to a certain extent, making it easier for maintenance personnel to identify and operate; on the other hand, when it is necessary to move or adjust the components connected to the flexible circuit board 30, the attraction force of the magnetic element 3 can play a certain role in buffering and auxiliary positioning, making the movement process of the components more stable and controllable, which not only reduces the risk of damage to the flexible circuit board 30 due to improper operation, but also improves the efficiency and quality of maintenance work, providing many conveniences and guarantees for the maintenance of the battery device 100.

[0085] In the above example, by providing the magnetic attraction member 3, the flexible circuit board 30 can be fixed during daily use, reducing the impact of shaking on the electrical connection, assisting in stability and positioning during maintenance, and improving battery stability and maintenance convenience.

[0086] In some embodiments of the present application, a plurality of first bending portions 21 are provided.

[0087] For example, in the length direction of the flexible circuit board 30 , a plurality of first bending portions 21 may be connected in sequence, or at least two adjacent first bending portions 21 may be spaced apart, and this application does not impose any limitation thereto.

[0088] In the above example, providing multiple first bending portions 21 can improve the flexibility and adaptability of the flexible circuit board 30 and optimize space utilization. Multiple bending portions 20 can evenly disperse the tension, reduce the stress of a single part, enhance the anti-damage ability, reduce the obstacles to maintenance due to compact layout, and ensure stable operation and convenient maintenance of the battery.

[0089] Please refer to Figure 4 , Figure 4 It is a schematic structural diagram of a flexible circuit board 30, a storage component 4 and a low-voltage connector 401 according to some embodiments of the present application.

[0090] Please refer to Figure 5 , Figure 5 for Figure 4 Partial cross-sectional view along line AA.

[0091] In some embodiments of the present application, the battery device 100 also includes a storage member 4, which is installed on the control board 10. The storage member 4 is provided with a storage channel 41. A section of the second part 2 is connected to the first part 1, and the other end is passed through the storage channel 41 to be connected to the electrical component 40. The second part 2 includes a bent and extended bent portion 20, and at least part of the bent portion 20 is stored in the storage channel 41.

[0092] In the above example, the storage part 4 and its storage channel 41 provide a regular storage space for the bent portion 20 of the flexible circuit board 30, effectively preventing it from shaking randomly inside the battery device 100 and entangled with other components, ensuring the neatness and orderliness of the internal structure of the battery, and reducing the risk of line failure caused by physical interference. Secondly, when the battery is vibrated or impacted, the storage channel 41 can buffer and protect the flexible circuit board 30, reduce the damage caused by external forces, and improve the durability of the flexible circuit board 30. Furthermore, during the battery maintenance process, this storage design enables maintenance personnel to more clearly locate and operate the flexible circuit board 30, which can reduce maintenance time and difficulty, improve the maintainability and reliability of the entire battery device 100, and help extend the service life of the battery device 100 and reduce maintenance costs.

[0093] In some embodiments of the present application, reference Figure 5 The bending portion 20 includes a first bending portion 21 and a second bending portion 22 located in the storage channel 41, and the second bending portion 22 is connected between the first bending portion 21 and the electrical component 40. The first bending portion 21 includes a first straight section 211, a first bending section 213 and a second straight section 212. The first bending section 213 is connected between the first straight section 211 and the second straight section 212 to construct a U-shaped bending structure; the second bending portion 22 includes: a fourth straight section 221, a fifth straight section 222 and a third bending section 223. The third bending section 223 is connected between the fourth straight section 221 and the fifth straight section 222 to construct a U-shaped bending structure, wherein the length of the fourth straight section 221 is greater than the length of the first straight section 211 and greater than the length of the second straight section 212, and the length of the fifth straight section 222 is greater than the length of the first straight section 211 and greater than the length of the second straight section 212.

[0094] In the above example, the U-shaped first bending portion 21 can effectively utilize space and buffer tension in the storage channel 41, reduce stress concentration, and ensure the stability of the flexible circuit board 30. The special design of the second bending portion 22, with its longer fourth straight section 221 and fifth straight section 222, can further increase the extension range of the flexible circuit board 30. During battery maintenance, it can provide more ample space for the movement of the control board 10 and the electrical components 40, reducing the difficulty and risk of disassembly and assembly. At the same time, the two U-shaped structures cooperate with each other, so that the entire flexible circuit board 30 can more flexibly adapt to different orientation requirements in the complex internal layout of the battery device 100, cleverly bypass other components, optimize the spatial layout, reduce the possibility of interference with other components, improve the overall reliability and stability of the battery device 100, and also help to improve the production and assembly efficiency of the battery and the convenience of subsequent maintenance.

[0095] In some embodiments of the present application, the bending direction of the bending portion 20 of the second portion 2 is perpendicular to the length direction of the first portion 1. For details, see Figure 2 .

[0096] In some embodiments of the present application, the second portion 2 includes a bent portion 20 that extends in a curved manner, and the thickness of the bent portion 20 is greater than the thickness of the first portion 1 , so that the stiffness coefficient of the bent portion 20 is greater than the stiffness coefficient of the first portion 1 .

[0097] Exemplarily, the bending portion 20 is thickened and pre-folded for shaping after production is completed, so that it has a certain shape. When the control board 10 is assembled, the bending portion 20 can return to or approach the pre-shaped state to complete storage, so that the flexible circuit board 30 can provide sufficient length during battery maintenance.

[0098] In the above example, since the thickness of the bending portion 20 is greater than that of the first portion 1, its stiffness coefficient is correspondingly increased. During the operation of the battery device 100, when subjected to external forces such as vibration, impact or pulling force caused by the displacement of other components, the bending portion 20 can maintain its own shape relatively stable by virtue of the larger stiffness coefficient, effectively preventing excessive bending or twisting deformation, thereby ensuring the reliability of the electrical connection and reducing the risk of signal transmission interruption or electrical failure caused by deformation of the flexible circuit board 30. In addition, the thicker bending portion 20 can store more elastic potential energy, thereby allowing a greater degree of elastic deformation. During battery maintenance, the bending portion 20 can be stretched after being subjected to external forces, thereby enabling the electrical component 40 and the control board 10 to move. When the external force is removed, the bending portion 20 can be restored to its original shape according to its elastic deformation ability, thereby making it difficult for the flexible circuit board 30 to interfere with other electrical components during the battery maintenance process, providing more reliable operating conditions for maintenance work, and improving maintenance efficiency and safety.

[0099] The present application also provides an electrical device having the battery device 100 of the above embodiment.

[0100] According to the electric device of the embodiment of the present application, the electric device may include a battery device 100, and the battery device 100 is used to store or provide electric energy.

[0101] In the above example, by providing the battery device 100 of the above example, the electrical device of the present application can better maintain the battery device 100 .

[0102] An electrical device according to an embodiment of the present application is taken as an example of a vehicle 1000 for description.

[0103] Please refer to 6. Figure 6 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000, for example, the battery device 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0104] Other structures and operations of the battery cell, the battery device 100 and the electrical device according to the embodiment of the present application are known to those skilled in the art and will not be described in detail here.

[0105] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0106] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery device, characterized in that: include: Battery module; A control board (10), the control board (10) being arranged at one end of the battery module; An electrical component (40), the electrical component (40) being located on the control board (10); A flexible circuit board (30), the flexible circuit board (30) comprising a first part (1) and a second part (2), the first part (1) being arranged on the battery module, the second part (2) being connected between the first part (1) and the electrical component (40), wherein at least a portion of the second part (2) is bent and extended to increase the length of the second part (2).

2. The battery device according to claim 1, characterized in that: The second portion (2) comprises a first bent portion (21) that extends in a curved manner, wherein the first bent portion (21) comprises a first straight section (211), a first bent section (213) and a second straight section (212), wherein the first bent section (213) is connected between the first straight section (211) and the second straight section (212) to form a U-shaped bent structure.

3. The battery device according to claim 2, characterized in that: The first straight section (211) and the second straight section (212) are parallel, and / or the first bent section (213) is in a semicircular arc shape.

4. The battery device according to claim 2, characterized in that: The first straight section (211) and the second straight section (212) are both provided with magnetic attracting parts (3) capable of attracting each other.

5. The battery device according to claim 2, characterized in that: The first bending portion (21) further comprises a third straight section (214) and a second bending section (215), wherein the second bending section (215) is connected between the second straight section (212) and the third straight section (214), so that the first bending portion (21) constructs an S-shaped bending structure.

6. The battery device according to claim 5, characterized in that: The first straight section (211), the second straight section (212) and the third straight section (214) are all parallel, and / or, The first bending section (213) is in a semicircular arc shape; and / or, The second bending section (215) is in a semicircular arc shape.

7. The battery device according to claim 5, characterized in that: At least two of the first straight section (211), the second straight section (212) and the third straight section (214) are provided with magnetic attracting parts (3) that can attract each other.

8. The battery device according to claim 2, characterized in that: A plurality of the first bending portions (21) are provided.

9. The battery device according to claim 1, characterized in that: The battery device (100) further comprises a storage member (4), the storage member (4) being mounted on the control board (10), the storage member (4) being provided with a storage channel (41), a section of the second part (2) being connected to the first part (1), and the other end being passed through the storage channel (41) to be connected to the electrical component (40), the second part (2) comprising a bent and extended bent portion (20), at least a portion of the bent portion (20) being stored in the storage channel (41).

10. The battery device according to claim 9, characterized in that: The bending portion (20) comprises a first bending portion (21) and a second bending portion (22) located in the receiving channel (41), wherein the second bending portion (22) is connected between the first bending portion (21) and the electrical component (40). The first bending portion (21) comprises a first straight section (211), a first bending section (213) and a second straight section (212), wherein the first bending section (213) is connected between the first straight section (211) and the second straight section (212) to form a U-shaped bending structure; The second bending portion (22) comprises: a fourth straight section (221), a fifth straight section (222) and a third bending section (223), wherein the third bending section (223) is connected between the fourth straight section (221) and the fifth straight section (222) to form a U-shaped bending structure, wherein: The length of the fourth straight section (221) is greater than the length of the first straight section (211), and greater than the length of the second straight section (212).

11. The battery device according to claim 1, characterized in that: The second part (2) comprises a bent and extended bending portion (20), the thickness of the bending portion (20) being greater than the thickness of the first part (1), so that the stiffness coefficient of the bending portion (20) is greater than the stiffness coefficient of the first part (1).

12. An electrical device, characterized in that: A battery device (100) comprising any one of claims 1 to 11.

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