Battery device and electric device

Abstract

This application discloses a battery device and an electrical device, relating to the field of battery technology. The battery device includes: a battery cell assembly comprising multiple battery cells; a sampling module including a sampling transmission component and a signal processing component electrically connected to the sampling transmission component, the sampling transmission component being electrically connected to the battery cells and collecting physical quantities of the battery cells; and a support frame including a support body and a support member connected to the support body. The battery cell assembly, support body, sampling transmission component, and signal processing component are arranged sequentially along a first direction. Along the first direction, the support member is at least partially located on the side of the support body opposite to the battery cells, and the support member supports the signal processing component. This arrangement enables the signal processing component to be fixed in position, making its installation more secure.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to battery devices and power-consuming devices. Background Technology

[0002] The application of new energy batteries in daily life and industry is becoming increasingly widespread. For example, new energy vehicles equipped with batteries are already widely used, and battery devices are also increasingly being applied in energy storage. In new energy vehicles equipped with batteries, the battery device can provide all or part of the power. In the field of energy storage, battery devices can be installed in energy storage boxes or directly on the user side.

[0003] In related technologies, battery devices typically include battery cell components, sampling modules, and signal processing components. A problem arises as to how to fix the position of the signal processing components. Utility Model Content

[0004] To address the aforementioned technical problems, embodiments of this application provide a battery device and an electrical device that can fix the position of the signal processing component, making the signal processing component more securely installed.

[0005] The first aspect of this application provides a battery device, comprising: a battery cell assembly including a plurality of battery cells; a sampling module including a sampling transmission element and a signal processing component electrically connected to the sampling transmission element, the sampling transmission element being electrically connected to the battery cells and acquiring physical quantities of the battery cells; and a support including a support body and a support member connected to the support body; the battery cell assembly, the support body, the sampling transmission element, and the signal processing component are arranged sequentially along a first direction, and along the first direction, the support member is at least partially located on the side of the support body opposite to the battery cells, and the support member supports the signal processing component.

[0006] The sampling module samples the physical quantities of individual battery cells. This allows for monitoring and management of the battery cells based on the collected physical parameters such as temperature and / or voltage, ensuring their normal operation, extending the battery's lifespan, and reducing the probability of thermal runaway. The support structure supports the signal processing component, providing stable positioning and enhancing its functional stability, which in turn improves the overall functional stability of the battery system.

[0007] In some embodiments, the support includes a support base connected to a bracket body and a through portion connected to the support base on a side opposite to the bracket body. The through portion passes through the signal processing component. Along a first direction, the support base abuts against the signal processing component to support the signal processing component.

[0008] Since the support base abuts against the signal processing component along the first direction to support the signal processing component, the support member can not only support the signal processing component along the first direction, but also position the signal processing component perpendicular to the first direction since the through portion passes through the signal processing component, thus reducing the probability of the signal processing component shaking or shifting.

[0009] In some embodiments, the number of supports is at least one, and the through portion of at least one support is offset from the sampling transmission member.

[0010] Because the through section is offset from the sampling transmission component, the through section does not pass through the sampling transmission component and will not occupy the space in the sampling transmission component used for wiring, which is beneficial for the sampling transmission component to have more space for wiring.

[0011] In some embodiments, at least one support member has a through portion that passes through the sampling transmission member.

[0012] Since the through portion of the support passes through the sampling transmission component, the support can not only position the signal processing component, but also position the sampling transmission component, and further, fix the relative positions of the signal processing component and the sampling transmission component.

[0013] In some embodiments, the cross-sectional area of ​​the through portion offset from the sampling transmission element is greater than the cross-sectional area of ​​the through portion passing through the sampling transmission element.

[0014] Since the cross-sectional area of ​​the through-hole passing through the sampling transmission element is relatively reduced, the space occupied by the through-hole in the sampling transmission element for wiring can be reduced, which is beneficial for the sampling transmission element to have more space for wiring.

[0015] In some embodiments, the diameter of the through portion offset from the sampling transmission element is larger than the diameter of the through portion passing through the sampling transmission element.

[0016] Setting the cross-sectional area of ​​the through section to be circular reduces the probability of the through section scratching the signal processing components and / or sampling transmission components compared to setting the cross-sectional area of ​​the through section to be angular. Moreover, the diameter of the through section that is offset from the sampling transmission component is larger than the diameter of the through section that passes through the sampling transmission component, which is more conducive to reducing the space occupied by the through section in the sampling transmission component for wiring, and is more conducive to the sampling transmission component having more space for wiring.

[0017] In some embodiments, along the first direction, the projection area of ​​the through portion is located within the projection area of ​​the support.

[0018] Along the first direction, the projection area of ​​the through portion is located within the projection area of ​​the support base. Therefore, along the direction perpendicular to the first direction, the portion of the support base extending beyond the through portion can support the signal processing component. Furthermore, the through portion can penetrate the signal processing component, resulting in a simple structure.

[0019] In some embodiments, along a first direction, the support base has at least two bearing portions on one side facing the signal processing component, the at least two bearing portions being arranged circumferentially spaced along the support base, and the bearing portions abutting against the signal processing component.

[0020] Since at least two support portions are arranged circumferentially around the support base and abut against the signal processing component, the support portions can not only abut against the signal processing component, but also reduce the weight of the support base, thereby reducing the weight of the bracket and thus reducing the weight of the battery device.

[0021] In some embodiments, the same battery cell assembly includes at least two battery cells arranged sequentially along a second direction, the second direction being intersected with the first direction, and the signal processing component having support members on opposite sides along a third direction, the third direction being intersected with the first and second directions respectively, and the projection areas of all support members being arranged at intervals along the third direction.

[0022] Since the signal processing component is provided with support members on both sides along the third direction and projected along the third direction, and the projection areas of all the support members are arranged at intervals, the arrangement of multiple support members is relatively uniform. Moreover, with a relatively small number of support members, the support effect of the support members on the signal processing component can be optimized, thereby further improving the stability of the signal processing component.

[0023] In some embodiments, the bracket further includes a base connected to the bracket body, the number of signal processing components is at least one, the number of supports corresponding to each signal processing component is at least two, all supports corresponding to each signal processing component are connected to a base, and the base is located on the side of the bracket body facing the battery cell assembly.

[0024] Since all the supports corresponding to each signal processing component are connected to a base, all the supports corresponding to each signal processing component can be formed into a whole through the base. This allows for the synchronous assembly of all the supports corresponding to each signal processing component, which is convenient for installation, improves the assembly efficiency of the supports, and thus improves the assembly efficiency of the battery device. In addition, it can also improve the positioning accuracy of the supports for the signal processing components. Furthermore, compared with forming all the supports in the battery device into a whole, it can reduce the cumulative error of the support assembly.

[0025] In some embodiments, the sampling transmission component includes a line assembly, which includes electrical lines, an assembly body, and a communication connection portion connected to the assembly body. The electrical lines are disposed between the assembly body and the communication connection portion. Along a first direction, the assembly body is located between a support body and a signal processing component, and a portion of the communication connection portion is connected to the signal processing component.

[0026] Since the communication connection part is connected to the signal processing component, an electrical connection between the sampling transmission component and the signal processing component can be achieved.

[0027] In some embodiments, the projection of the communication connection portion onto the same projection plane along a first direction overlaps with the projection portion of the signal processing component.

[0028] Since the projection of the communication connection part overlaps with the projection of the signal processing component when projected onto the same projection plane along the first direction, the overlapping part of the communication connection part and the signal processing component can be electrically connected to the overlapping part of the signal processing component and the communication connection part, resulting in a simple structure.

[0029] In some embodiments, along a first direction, a portion of the communication connection is located on the side of the signal processing component opposite to the integrated body.

[0030] The space on the side of the signal processing component away from the main body of the integrated component is relatively large, which facilitates the connection between the communication connection part and the signal processing component.

[0031] In some embodiments, the integrated body has at least one clearance hole; at least one support member passes through the clearance hole to support the signal processing component, and at least one support member is offset from the communication connection portion; and / or at least one support member passes through the clearance hole to support the signal processing component and the communication connection portion.

[0032] Since the integrated component body has at least one clearance hole, it is convenient for the support component not to occupy space outside the integrated component body.

[0033] In some embodiments, the integrated body and the signal processing component are spaced apart along a first direction.

[0034] This provides clearance for devices or sampling transmission components in the signal processing assembly, reducing the probability of damage to the devices or sampling transmission components caused by squeezing them.

[0035] In some embodiments, the battery device includes at least two sampling modules, including a first sampling module and a second sampling module, which sample the same physical quantity of the same battery cell assembly.

[0036] Since the first sampling module and the second sampling module sample the same physical quantity of the same battery cell assembly, that is, two sampling modules are set up for the same battery cell assembly, and the two sampling modules collect the same physical quantity of the battery cell assembly, the probability of missing or inaccurate physical quantity of the battery cell assembly due to damage or abnormality of a single sampling module can be reduced. The battery cell assembly can be monitored and managed more effectively based on at least one of the collected physical parameters such as temperature, voltage, and current, so that the battery cell assembly can work normally, which is conducive to further extending the service life of the battery device, and can also further reduce the probability of thermal runaway of the battery cell assembly.

[0037] In some embodiments, the first sampling module includes a first sampling transmission element and a first signal processing component, the first signal processing component processing the electrical signals of the battery cells collected by the first sampling transmission element; the second sampling module includes a second sampling transmission element and a second signal processing component, the second signal processing component processing the electrical signals of the battery cells collected by the second sampling transmission element; the battery device further includes a battery management system, the battery management system including at least two main control modules, the at least two main control modules including a first main control module and a second main control module, the first signal processing component being communicatively connected to the first main control module, and the second signal processing component being communicatively connected to the second main control module.

[0038] Since the sampling module includes sampling transmission components and signal processing components, redundancy is set for both sampling transmission and signal processing. In addition, the main control module in the thermal management system is also set with redundancy accordingly. This can further improve the reliability of the thermal management of the battery device.

[0039] In some embodiments, the first sampling transmission component includes a first sampling terminal and a first line integration component, and the second sampling transmission component includes a second sampling terminal and a second line integration component; the first line integration component and the second line integration component are stacked along a first direction; the first signal processing component and the second signal processing component are arranged along a second direction, and the number of support components is at least one, with at least one support component supporting the first signal processing component and at least one support component supporting the second signal processing component, and the first direction intersecting the second direction.

[0040] Therefore, not only can the first sampling module and the second sampling module sample the same physical quantity of the same battery cell assembly, but also, since the first and second line integration components are relatively long components, their stacking along the first direction can fully utilize the space in the first direction of the battery cell assembly, reducing the occupation of space in the second and third directions. Even if sampling transmission components are set up separately for multiple battery cell assemblies, they can be easily arranged. Furthermore, since the first and second signal processing components are arranged along the second direction, the first and second line integration components can be easily electrically connected to the first and second signal processing components, respectively.

[0041] In some embodiments, the integrated body of the first sampling transmission element is located between the integrated body of the second sampling transmission element and the signal processing component, the number of communication connection parts of the second sampling transmission element is at least two, and all communication connection parts of the second sampling transmission element are located on the same side of the second signal processing component along a preset direction, the preset direction being arranged intersecting with the first direction.

[0042] Since all the communication connection parts of the second sampling transmission component are located on the same side of the second signal processing component, after the second sampling transmission component is assembled, the first sampling transmission component can be assembled by folding the communication connection parts of the second signal processing component and the second sampling transmission component.

[0043] In some embodiments, the integrated body of the first sampling transmission element is located between the integrated body of the second sampling transmission element and the signal processing component. The first signal processing component is connected to the communication connection portion of the first sampling transmission element on both sides along a preset direction, and the preset direction is arranged intersecting with the first direction.

[0044] Since the communication connection portion of the first sampling transmission element is connected to both opposite sides of the first signal processing component along the preset direction, the force on both opposite sides of the first signal processing component along the preset direction is relatively uniform, which can improve the stability of the first signal processing component. Both opposite sides of the first signal processing component along the preset direction can be used for the arrangement of internal circuitry.

[0045] In some embodiments, the battery cell assembly includes a plurality of first battery cells and a plurality of second battery cells arranged along a second direction; a sampling transmission member extends along the second direction and includes at least one first sampling transmission member sub-component and at least one second sampling transmission member sub-component, the first sampling transmission member sub-component and the second sampling transmission member sub-component are arranged along the second direction, the first sampling transmission member sub-component is electrically connected to the first battery cell, and the second sampling transmission member sub-component is electrically connected to the second battery cell; wherein, the first sampling transmission member sub-component has a first overlapping section on the side of the sampling transmission member sub-component closer to the sampling transmission member sub-component along the second direction, and the second sampling transmission member sub-component has a second overlapping section on the side of the sampling transmission member sub-component closer to the sampling transmission member sub-component along the second direction, the first overlapping section and the second overlapping section overlap each other and are electrically connected along the first direction, and the second direction intersects the first direction.

[0046] Since the first overlapping section and the second overlapping section overlap and are electrically connected to each other, the first sub-component and the second sub-component of the sampling transmission component can form a sampling transmission component with a relatively long length along the second direction, which can solve the length limitation of the sampling transmission component. For example, when the length of the battery cell assembly along the second direction is relatively long, the signal of the battery cell exceeds the line range that a single-sided sampling board can carry, so a double-sided sampling board is required. However, due to the material of the sampling board itself, manufacturing difficulty, etc., the length of the sampling transmission component along the second direction is limited. However, in the embodiments of this application, the first sub-component and the second sub-component of the sampling transmission component overlap along the second direction, which can not only overcome the length limitation of the sampling transmission component, but also share some electrical components. Therefore, the overlapping sampling transmission component can be applied to battery cell assemblies with a relatively long length along the second direction, and it is also beneficial to reduce the number of parts in the battery device and simplify the wiring harness or layout design inside the battery device.

[0047] In some embodiments, the sampling transmission component includes a sampling terminal and a line integration component connected to the sampling terminal. The line integration component includes an integration component body and electrical wiring. A first sub-component of the sampling transmission component includes a first sub-component of the line integration component and a first sub-component of the sampling terminal. The first sub-component of the line integration component includes a first sub-component body and a first electrical wiring. The first electrical wiring is located on opposite sides of the first sub-component body along a first direction. The first electrical wiring includes a first communication line and a first power supply line. The first sub-component of the sampling terminal is electrically connected to a first battery cell and the first communication line. A second sub-component of the sampling transmission component includes a second sub-component of the line integration component and a second sub-component of the sampling terminal. The second sub-component of the line integration component includes a second sub-component body and a second electrical wiring. The second electrical wiring is located on opposite sides of the second sub-component body along the first direction. The second electrical wiring includes a second communication line and a second power supply line. The second sub-component of the sampling terminal is electrically connected to a second battery cell and the second communication line. A portion of the first power supply line located at a first overlap section is electrically connected to a portion of the second power supply line located at a second overlap section.

[0048] The integrated component has electrical wiring on both opposite sides of its main body. Compared to a component with electrical wiring on only one side, this allows for more electrical wiring to be arranged without increasing the overall size of the component. Therefore, it enables sampling of more individual battery cells or the collection of more physical parameters without increasing the number of components. Furthermore, since the first and second power supply lines are electrically connected, the first and second sub-components of the sampling transmission unit can share a power supply module, reducing the number of power supply modules required in the battery device. Additionally, because the two power supply lines are electrically connected at the overlap between the first and second overlap sections, there is no need for additional wiring harnesses or connectors to connect the power supply lines, simplifying the wiring.

[0049] In some embodiments, the battery device includes a busbar electrically connected to a battery cell assembly and connected to a support body.

[0050] Therefore, the busbar can be used to connect battery cells in series or in parallel, and it can also support the support body.

[0051] In some embodiments, the signal processing component includes a printed circuit board.

[0052] Printed circuit boards are less prone to deformation, which can improve the stability of signal processing components.

[0053] A second aspect of this application provides an electrical device, which includes the battery device described above.

[0054] Since the electrical device includes the aforementioned battery device, the position of the signal processing component in the electrical device can be fixed, thereby improving the functional stability of the signal processing component and thus improving the functional stability of the electrical device. Attached Figure Description

[0055] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0056] Figure 1 Schematic diagrams of an aircraft structure provided for some embodiments of this application;

[0057] Figure 2 Exploded perspective view of a battery device provided for some embodiments of this application;

[0058] Figure 3A partial three-dimensional structural schematic diagram of a battery device provided for some embodiments of this application;

[0059] Figure 4 for Figure 3 A magnified structural diagram of region A;

[0060] Figure 5 An exploded perspective view of the support and sampling transmission device in an assembled state, provided for some embodiments of this application;

[0061] Figure 6 for Figure 5 A magnified structural diagram of region B;

[0062] Figure 7 A schematic diagram of the assembled state of the bracket, sampling transmission component, and signal processing component provided for some embodiments of this application;

[0063] Figure 8 A schematic diagram of the assembled state of the support and sampling transmission component provided for some embodiments of this application;

[0064] Figure 9 Exploded perspective view of a first sampling transmission device and a second sampling transmission device provided for some embodiments of this application;

[0065] Figure 10 for Figure 9 A magnified structural diagram of region C;

[0066] Figure 11 for Figure 9 A schematic diagram of the enlarged structure of region D;

[0067] Figure 12 An exploded perspective view of a battery cell provided for some embodiments of this application;

[0068] Figure 13 Schematic diagrams of the support structure provided for some embodiments of this application;

[0069] Figure 14 A simplified diagram showing the connection of components in a sampling module provided for some embodiments of this application.

[0070] Explanation of reference numerals in the attached figures

[0071] 1000, Aircraft; 100, Battery Unit; 101, Housing; 101a, First Housing; 101b, Second Housing; 10, Battery Cell Assembly; 10a, First Battery Cell Group; 10b, Second Battery Cell Group; 1, Battery Cell; 1a, First Battery Cell; 1b, Second Battery Cell; 11, Electrode Assembly; 12, Tab; 13, Housing; 14, Electrode Terminal; 2, Sampling Module; 2a, First Sampling Module; 2b, Second Sampling Module; 20, Sampling Transmission Component ; 20a, First sampling transmission component; 20b, Second sampling transmission component; 201, Sampling terminal; 201a, First sampling terminal; 201b, Second sampling terminal; 202, Line integration component; 202a, First line integration component; 202b, Second line integration component; 2020, Integration component body; 203, Communication connection part; 21, First sub-component of sampling transmission component; 211, First sub-component of sampling terminal; 212, First sub-component of line integration component; 2120, First sub-component body; 2 121. First main body; 2122. First extension; 213. First communication connection; 2131. First communication connection segment; 2132. Second communication connection segment; 22. Second sub-component of sampling transmission component; 221. Second sub-component of sampling terminal; 222. Second sub-component of circuit integration component; 2220. Second sub-component body; 2221. Second main body; 2222. Second extension; 223. Second communication connection; 2231. Third communication connection segment; 2232. Fourth communication connection segment 30. Signal processing component; 30a. First signal processing component; 30b. Second signal processing component; 3. Main control module; 3a. First main control module; 3b. Second main control module; 4. Bracket; 41. Bracket body; 411. Clearance hole; 412. Clearance opening; 42. Support component; 421. Support base; 4211. Bearing part; 4212. Base; 422. Through part; 43. Base; 5. Busbar; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0072] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0074] In the description of the embodiments of this application, the technical terms "first," "second," "third," "fourth," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0075] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0076] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0077] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0078] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0079] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "overlap" should be interpreted broadly, and can refer to direct overlap or overlap with an intermediate medium layer.

[0080] The following is a detailed description of this application.

[0081] In related technologies, the sampling transmission device can collect physical parameters such as temperature and voltage of individual battery cells. The battery management system monitors and manages the working status of each individual battery cell through these collected physical parameters, so that the battery device can work in a better state and have a longer service life. The battery management system includes a signal processing component, which is arranged at the corresponding position of the sampling transmission device to receive and transmit the physical quantities of the individual battery cells collected by the sampling transmission device. The signal processing component is not connected to the bracket, making it difficult to fix the position of the signal processing component.

[0082] Research suggests that a support bracket can be installed to support the signal processing component, thereby fixing its position and ensuring a more secure installation.

[0083] Based on this design concept, the first aspect of this application provides a battery device, comprising: a battery cell assembly including a plurality of battery cells; a sampling module including a sampling transmission element and a signal processing component electrically connected to the sampling transmission element, the sampling transmission element being electrically connected to the battery cells and acquiring physical quantities of the battery cells; and a support including a support body and a support member connected to the support body; the battery cell assembly, the support body, the sampling transmission element, and the signal processing component are arranged sequentially along a first direction, and along the first direction, the support member is at least partially located on the side of the support body opposite to the battery cells, and the support member supports the signal processing component.

[0084] The sampling and transmission component samples the physical quantities of individual battery cells. This allows for monitoring and management of the battery cells based on the collected physical parameters such as temperature and / or voltage, ensuring their normal operation, extending the battery's lifespan, and reducing the probability of thermal runaway. The support component supports the signal processing component, providing secure mounting and relatively fixed positioning, thereby improving the functional stability of the signal processing component and, consequently, the overall functional stability of the battery system.

[0085] The battery device provided in this application embodiment can be used, but is not limited to, in electrical devices such as energy storage devices, vehicles, ships, or aircraft.

[0086] This application also provides an electrical device including the above-described battery device. The electrical device can be, but is not limited to, a mobile phone, tablet, laptop, electric toy, power tool, electric vehicle, electric car, ship, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0087] For ease of explanation, an example of an electrical device in this application is an airplane.

[0088] Figure 1 Schematic diagrams of the aircraft structure provided for some embodiments of this application, such as Figure 1 As shown, the aircraft is equipped with a battery device 100, which can be installed in the fuselage or other locations of the aircraft and can be used to power the aircraft.

[0089] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the aircraft 1000, but also as the driving power source for the aircraft 1000, replacing or partially replacing fuel or natural gas to provide driving power for the aircraft 1000.

[0090] Figure 2 This is an exploded perspective view of a battery device 100 provided in some embodiments of this application; the battery device mentioned in the embodiments of this application may include multiple battery cell assemblies 10 for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via busbars.

[0091] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells; as an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form a single module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0092] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 101 and a plurality of battery cell assemblies 10, the battery cell assemblies 10 being housed in the housing 101.

[0093] As an example, the battery cell assembly 10 can be a battery module, and the battery cell assembly can be housed in the housing by fixing the battery module in the housing.

[0094] As an example, the battery cell assembly can also be housed in the housing by directly fixing multiple battery cells 1 to the housing 101.

[0095] As an example, such as Figure 2 As shown, the housing 101 may include a first housing 101a and a second housing 101b. The first housing 101a and the second housing 101b are fastened together to form a closed space inside the housing 101 to house the battery cell assembly. Here, "closed" refers to covering or closing, which can be sealed or unsealed. The first housing 101a may be a top cover or a bottom plate.

[0096] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0097] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0098] Figure 12 This is an exploded perspective view of a battery cell 1 provided for some embodiments of this application. The battery cell 1 generally includes an electrode assembly. The electrode assembly 11 includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of the battery cell 1, active ions (e.g., lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator is disposed between the positive and negative electrodes to prevent short circuits between them while allowing active ions to pass through.

[0099] In some embodiments, the battery cell 1 further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. This application embodiment does not impose specific limitations on the type of electrolyte, and it can be selected according to requirements. The electrolyte can be liquid, gel, or solid.

[0100] In some embodiments, such as Figure 10 As shown, the electrode assembly 11 is provided with tabs 12, which can conduct current from the electrode assembly 11. The tabs include a positive tab and a negative tab.

[0101] As an example, battery cell 1 can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic battery cells. Multi-prismatic battery cells are, for example, hexagonal prismatic battery cells. There are no particular limitations in the embodiments of this application.

[0102] In some embodiments, the battery cell may include a housing 13. The housing 13 may be a steel housing, an aluminum housing, a plastic housing (such as a polypropylene housing), a composite metal housing (such as a copper-aluminum composite housing), or an aluminum-plastic film, etc.

[0103] In some embodiments, the housing can be a sealed structure or a non-sealed structure. As an example, when the housing is a non-sealed structure, it serves to protect the electrode assembly, and a sealing bag is included between the housing and the electrode assembly to encapsulate the electrode assembly and electrolyte. Specifically, the sealing bag can be a bag-shaped insulating component or an aluminum-plastic film. When the housing is a sealed structure, it is used to encapsulate components such as the electrode assembly and electrolyte.

[0104] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic batteries, such as hexagonal prismatic batteries. This application does not have any particular limitations.

[0105] In some embodiments, the housing 13 includes an end cap and a housing, the housing having an opening, and the end cap covering the opening. The housing may have one or more openings. The end cap may also be provided one or more.

[0106] In some embodiments, at least one electrode terminal 14 is provided on the housing, and the electrode terminal 14 is electrically connected to the tab 12. The electrode terminal 14 can be directly connected to the tab 12, or it can be indirectly connected to the tab 12 through a current collector. The electrode terminal 14 can be provided on the end cap or on the housing.

[0107] In some embodiments, a pressure relief mechanism is provided on the housing. The pressure relief mechanism is used to release the internal pressure of the battery cell.

[0108] Below, refer to Figures 3 to 14 Some embodiments of this application will be described in detail.

[0109] In the description of the embodiments of this application, for ease of explanation, the direction of arrow X represents the "first direction", the direction of arrow Y represents the "second direction", and the direction of arrow Z represents the "third direction". The first direction X, the second direction Y, and the third direction Z intersect each other pairwise, and the three directions are not coplanar. In some embodiments, the first direction X, the second direction Y, and the third direction Z intersect each other perpendicularly.

[0110] The first aspect of this application provides a battery device, such as... Figures 3 to 6As shown, the battery device includes a battery cell assembly 10, a sampling module 2, and a support 4. The battery cell assembly includes multiple battery cells 1. The sampling module 2 includes a sampling transmission component 20 and a signal processing component 30 electrically connected to the sampling transmission component 20. The sampling transmission component 20 is electrically connected to the battery cells 1 and collects physical quantities of the battery cell assembly 10. The support 4 includes a support body 41 and a support member 42 connected to the support body 41. The battery cell assembly 10, the support body 41, the sampling transmission component 20, and the signal processing component 30 are arranged sequentially along a first direction X. Along the first direction X, the support member 42 is at least partially located on the side of the support body 41 opposite to the battery cells, and the support member 42 supports the signal processing component 30.

[0111] Optionally, the number of battery cell modules 10 can be one, two, three, four or more, etc.

[0112] For example, such as Figure 3 As shown, the battery cell assembly 10 includes a plurality of battery cells 1.

[0113] For example, such as Figure 3 As shown, multiple battery cell modules 10 can be arranged along a first direction X, a second direction Y, or a third direction Z.

[0114] Optionally, the number of sampling transmission components 20 can be one, two, three, four or more, etc.

[0115] For example, each battery cell assembly 10 can be electrically connected to each sampling transmission element.

[0116] For example, each battery cell assembly 10 may be electrically connected to at least two sampling transmission devices.

[0117] For example, sampling transmission elements connected to the same battery cell assembly 10 are stacked along a first direction.

[0118] For example, such as Figure 3 As shown, two battery cell assemblies 10 are arranged along the third direction Z. Each battery cell assembly 10 is electrically connected to at least two sampling transmission devices. The sampling transmission devices connected to different battery cell assemblies 10 are arranged along the third direction Z, and the sampling transmission devices connected to the same battery cell assembly 10 are arranged along the first direction.

[0119] For example, multiple battery cells 1 in the same battery cell assembly 10 may be arranged along a first direction X, a second direction Y, or a third direction Z. In a specific embodiment, the battery cell assembly 10 includes multiple battery cells 1 arranged along the second direction.

[0120] The sampling and transmission device 20 can collect physical parameters such as temperature, current, and voltage of the battery cell assembly 10.

[0121] For example, voltage sampling typically refers to monitoring the voltage of individual cells or modules to prevent overcharging or over-discharging. Current sampling typically refers to measuring the charge and discharge current using Hall effect sensors or shunts to calculate the state of charge (SOC). Temperature sampling typically refers to monitoring battery temperature using sensors such as positive temperature coefficient thermistors and negative temperature coefficient thermistors to prevent thermal runaway.

[0122] As a basic component of the sampling module, it may include sensors such as voltage acquisition chips, current sensors, and temperature sensors; signal conditioning circuits that filter and amplify the raw signal; power supply circuits that provide stable voltage to the sensors and signal chain (such as low-dropout linear regulators or isolated power supplies); and grounding designs that ensure signal integrity (such as analog / digital ground separation). Furthermore, the sampling module 2 may also include a multiplexer (MUX) to achieve high-precision data acquisition. This application embodiment does not impose any particular limitations on the configuration of the sampling module 2 for sampling and signal transmission; existing solutions can be used.

[0123] The sampling transmission component 20 mainly performs the function of signal transmission. It may include sampling terminals and circuit integration components. The sampling terminals mainly perform the function of electrical connection with the battery cell side and may include nickel strips, sampling windows, bonding wires, etc. The circuit integration components may include flexible circuit boards, flexible flat cables, printed circuit boards, etc.

[0124] In some specific embodiments, the circuit integration is constructed from a flexible printed circuit board (FPC), which can be a single-sided flexible circuit board, a double-sided flexible circuit board, or a multi-layer flexible circuit board.

[0125] For example, the battery device also includes a main control module 3 (see...) Figure 14 The same main control module is electrically connected to the signal processing component 30 that connects to different battery cell components.

[0126] For example, the signal processing component 30 processes the electrical signals of the battery cell assembly acquired by the sampling transmission component.

[0127] For example, the signal processing component 30 can be responsible for monitoring and managing the operating status of some battery cells or battery modules in the battery cell assembly, working in conjunction with the main control module, which can be a master control board, to improve the operating efficiency of the battery device. This enables the monitoring and corresponding management of the operating status of the battery cell assembly 10.

[0128] The signal processing component may include an analog front end, which converts the received analog signals of physical quantities into data signals and transmits the digital signals through communication to realize data processing and control.

[0129] Optionally, the number of signal processing components can be one, two, three, four or more.

[0130] For example, such as Figure 3 As shown, multiple signal processing components 30 are arranged along the second direction Y. Of course, the multiple signal processing components 30 can also be arranged along other directions.

[0131] In some embodiments, each signal processing component 30 is electrically connected to each sampling transmission component 20.

[0132] For example, the signal processing component 30 includes a printed circuit board (PCB) and electrical components disposed on the printed circuit board. Further, the printed circuit board can be a printed circuit board that is not easily deformed.

[0133] For example, such as Figure 5 As shown, the bracket body 41 and the support member 42 can be made of materials with high temperature resistance, high insulation, high pressure resistance, and conforming to the U94-V0 flame retardant rating. The materials of the bracket body 41 and the support member 42 can be the same or different.

[0134] Optionally, the support body 41 and the support member 42 can be an integral structure or a separate structure. In one specific embodiment, the support body 41 and the support member 42 are separate structures.

[0135] For example, such as Figure 3 and Figure 5 As shown, the bracket body 41 can be directly supported on the battery cell assembly 10, or it can be supported on the battery cell or the housing via a support component. In a specific embodiment, the bracket body 41 is connected to a busbar, and the busbar is connected to the electrode terminals of the battery cell.

[0136] For example, such as Figure 5 As shown, the bracket body 41 can be a plate perpendicular to the first direction X, thereby reducing the size of the battery device along the first direction X.

[0137] For example, such as Figure 4 and Figure 6 As shown, part or all of the support member 42 is located on the side of the bracket body 41 facing away from the battery cell assembly 10 along the first direction X, and the support member 42 supports the signal processing assembly 30.

[0138] For example, such as Figure 4 and Figure 6As shown, the support member 42 can partially pass through the signal processing assembly 30, and another part of the support member 42 abuts against the signal processing assembly 30. For example, another part of the support member 42 abuts against the side of the signal processing assembly 30 facing the battery cell assembly 10 along the first direction X.

[0139] For example, the support member 42 may also abut against the signal processing assembly 30 without passing through it. For instance, the support member 42 abuts against the side of the signal processing assembly 30 facing the battery cell assembly 10 along the first direction X.

[0140] For example, the support member 42 is riveted to the signal processing component 30.

[0141] For example, the support member 42 is thermally riveted to the signal processing component 30.

[0142] In this embodiment, the sampling transmission device 20 samples the physical quantities of the battery cell assembly 10, enabling the battery cell assembly 10 to operate normally, which helps extend the service life of the battery device and reduces the probability of thermal runaway in the battery cell assembly 10. The support member 42 supports the signal processing component 30, thereby supporting the signal processing component 30, fixing its position relatively, and making the signal processing component more secure, thus improving the functional stability of the signal processing component 30 and consequently improving the functional stability of the battery device.

[0143] In some embodiments, such as Figure 3 , Figure 4 and Figure 6 As shown, the support member 42 includes a support base 421 connected to the bracket body 41 and a through portion 422 connected to the support base 421 on the side opposite to the bracket body 41. The through portion 422 passes through the signal processing component 30. Along the first direction X, the support base 421 abuts against the signal processing component 30 to support the signal processing component 30.

[0144] For example, along the first direction X, the support member 42 includes a connected support base 421 and a through portion 422. The support base 421 is connected to the bracket body 41, and the side of the support base 421 facing away from the battery cell assembly 10 along the first direction X abuts against the signal processing assembly 30.

[0145] For example, the support base 421 and the signal processing component 30 can be directly connected or indirectly connected.

[0146] For example, the signal processing component 30 may have a first aperture, through which the through portion 422 passes.

[0147] For example, within the same projection plane projected along the first direction X, the projection of the through portion 422 is located within the projection range of the first aperture, and the projection of the first aperture is located within the projection range of the support 421.

[0148] For example, the further away from the battery cell assembly 10 along the first direction X, the smaller the cross-sectional area of ​​at least a portion of the through portion 422 becomes.

[0149] For example, the further away from the battery cell assembly 10 along the first direction X, the smaller the distance between the opposite sides of the outer edge of the through portion 422.

[0150] In this embodiment, since the support base 421 abuts against the signal processing component 30 along the first direction X to support the signal processing component 30, the support member 42 can not only support the signal processing component 30 along the first direction X, but also, since the through portion 422 passes through the signal processing component 30, the support member 42 can also position the signal processing component 30 in a direction perpendicular to the first direction X, reducing the probability of the signal processing component 30 shaking or shifting.

[0151] It is understandable that the support member 42 may not include the through part 422.

[0152] In some embodiments, such as Figure 3 , Figure 4 and Figure 6 As shown, there is at least one support member 42, and the through portion 422 of at least one support member 42 is offset from the sampling transmission member 20.

[0153] For example, one, two, three or more support members 42 may have through-holes 422 passing through the signal processing assembly 30, and the through-holes 422 do not pass through the sampling transmission member 20.

[0154] For example, a portion of the sampling transmission element 20 is located on one side of the signal processing component 30 along the first direction X and is electrically connected to the signal processing component 30. Further, a portion of the sampling transmission element 20 is located on the side of the signal processing component 30 along the first direction X opposite to the battery cell assembly 10 and is electrically connected to the signal processing component 30.

[0155] For example, in the projection plane projected along the first direction X, the projection of the through portion 422 of the support member 42 does not overlap with the projection of the portion of the sampling transmission member 20 connected to the signal processing component 30, and the through portion 422 does not pass through the sampling transmission member 20.

[0156] In this embodiment, since the through portion 422 is offset from the sampling transmission member 20, the through portion 422 does not pass through the sampling transmission member 20 and will not occupy the position in the sampling transmission member 20 used for wiring, which is beneficial for the sampling transmission member 20 to have more position for wiring.

[0157] In some embodiments, such as Figure 3 , Figure 4 and Figure 6 As shown, at least one support member 42 has a through portion 422 passing through the sampling transmission member 20.

[0158] For example, one, two, three or more support members 42 may have through portions 422 passing through the signal processing assembly 30 and the sampling transmission member 20.

[0159] For example, in the projection plane projected along the first direction X, the projection of the through portion 422 of the support member 42 overlaps with the projection of the portion of the sampling transmission member 20 connected to the signal processing component 30.

[0160] In this embodiment, since the through portion 422 of the support member 42 passes through the sampling transmission member 20, the support member 42 can not only position the signal processing component 30, but also position the sampling transmission member 20. Furthermore, it can fix the relative position of the signal processing component 30 and the sampling transmission member 20.

[0161] In some embodiments, such as Figure 6 As shown, the cross-sectional area of ​​the through portion 422 that is offset from the sampling transmission member 20 is greater than the cross-sectional area of ​​the through portion 422 that passes through the sampling transmission member 20.

[0162] The cross-sectional area of ​​the through portion 422 refers to the cross-sectional area perpendicular to the first direction X.

[0163] In this embodiment, since the cross-sectional area of ​​the through portion 422 passing through the sampling transmission member 20 is relatively reduced, the space occupied by the through portion 422 passing through the sampling transmission member 20 for wiring can be reduced, which is beneficial for the sampling transmission member 20 to have more space for wiring.

[0164] It is understandable that the cross-sectional area of ​​the through portion 422, which is offset from the sampling transmission member 20, may be less than or equal to the cross-sectional area of ​​the through portion 422 passing through the sampling transmission member 20.

[0165] In some embodiments, such as Figure 6 As shown, the diameter D2 of the through portion 422 that is offset from the sampling transmission member 20 is greater than the diameter D1 of the through portion 422 that passes through the sampling transmission member 20.

[0166] For example, the diameter of the first aperture formed by the signal processing component 30 through which the through portion 422, which is offset from the sampling transmission member 20, passes is in the range of 2 mm to 5 mm, and further, it can be 4 mm.

[0167] For example, the diameter of the first aperture formed by the signal processing component 30 that allows the through portion 422 of the sampling transmission member 20 to pass through is in the range of 1 mm to 3 mm, and further, it can be 2 mm.

[0168] For example, along a direction perpendicular to the first direction X, the distance between the center point of the through portion 422 and the edge of the signal processing component 30 is less than or equal to 1 mm.

[0169] The diameter of the through portion 422 refers to the maximum diameter of the outer edge of the through portion 422.

[0170] In this embodiment, the cross-sectional area of ​​the through portion 422 is set to be circular. Compared with the cross-sectional area of ​​the through portion 422 being set to a shape with sharp edges, the probability of the through portion 422 scratching the signal processing component 30 and / or the sampling transmission component 20 can be reduced. Moreover, the diameter of the through portion 422 that is offset from the sampling transmission component 20 is larger than the diameter of the through portion 422 that passes through the sampling transmission component 20. This is more conducive to reducing the space occupied by the through portion 422 that passes through the sampling transmission component 20 for wiring, and more conducive to the sampling transmission component 20 having more space for wiring.

[0171] It is understandable that the diameter D2 of the through portion 422, which is offset from the sampling transmission member 20, can be less than or equal to the diameter D1 of the through portion 422 passing through the sampling transmission member 20.

[0172] In some embodiments, such as Figure 6 As shown, along the first direction X, the projection area of ​​the through portion 422 is located within the projection area of ​​the support base 421.

[0173] For example, along the first direction X, the entire projection area of ​​the through portion 422 is located within the projection area of ​​the support 421.

[0174] In this embodiment of the application, along the first direction X, the projection area of ​​the through portion 422 is located within the projection area of ​​the support base 421. Therefore, along the direction perpendicular to the first direction X, the portion of the support base 421 extending beyond the through portion 422 can support the signal processing component 30. Moreover, the through portion 422 can penetrate the signal processing component 30, resulting in a simple structure.

[0175] It is understandable that the projection area of ​​the through portion 422 is not located within the projection area of ​​the support 421. For example, the through portion 422 and the support 421 extend along the first direction X, and the portion of the through portion 422 facing the support 421 along the first direction X is connected to the portion of the support 421 facing the through portion 422 along the first direction X.

[0176] In some embodiments, such as Figure 4 or Figure 6 As shown, along the first direction X, the support base 421 has at least two bearing portions 4211 on the side of the support base 421 facing the signal processing component 30 along the first direction X. The at least two bearing portions 4211 are arranged circumferentially at intervals along the support base 421, and the bearing portions 4211 abut against the signal processing component 30.

[0177] For example, the support base 421 includes a support portion 4211 and a base 4212 connected along a first direction X. The support portion 4211 is connected between the through portion 422 and the base 4212, and the support portion 4211 abuts against the signal processing component 30.

[0178] For example, the surface of the carrier 4211 that abuts against the signal processing component 30 is a plane or a curved surface with a slight curvature.

[0179] For example, the number of carriers 4211 can be two, three, four or more.

[0180] For example, at least two bearing portions 4211 are arranged at uniform intervals along the circumference of the support base 421.

[0181] For example, such as Figure 5 and Figure 6 As shown, along a direction perpendicular to the first direction X, the sampling transmission component has a clearance hole 411 that avoids the support base 421. The furthest distance between the outer edge of the clearance hole 411 and the outer edge of the support base 421 is greater than or equal to 0.5 mm.

[0182] In this embodiment, since at least two support portions 4211 are arranged circumferentially around the support base 421, and the support portions 4211 abut against the signal processing component 30, the support portions 4211 can not only abut against the signal processing component 30, but also reduce the weight of the support base 421, thereby reducing the weight of the bracket 4, and thus reducing the weight of the battery device.

[0183] It is understandable that the support 421 may not have a load-bearing part 4211.

[0184] In some embodiments, such as Figure 3 and Figure 4As shown, the same battery cell assembly 10 includes at least two battery cells arranged sequentially along the second direction Y. The second direction Y intersects with the first direction X. The signal processing assembly 30 is provided with support members 42 on both sides along the third direction Z. The third direction Z intersects with the first direction X and the second direction Y respectively. The projection areas of all support members 42 are arranged at intervals along the third direction Z.

[0185] For example, two, three, four or more battery cells can be arranged sequentially along the second direction Y.

[0186] For example, the signal processing component 30 extends along the second direction Y.

[0187] For example, when projected along a third direction Z, the projection areas of all supports 42 are arranged at intervals, and the projection areas of all supports 42 do not overlap with each other.

[0188] For example, when projecting along a third direction Z, the distances between the projection areas of all supports 42 can be equal or unequal.

[0189] For example, the signal processing component 30 is provided with support members 42 on both opposite sides along the second direction Y.

[0190] For example, the support member 42 located on one side of the signal processing component 30 along the third direction Z and the support member 42 located on the other side of the signal processing component 30 along the third direction Z are arranged alternately along the second direction Y.

[0191] In this embodiment, since the signal processing component 30 is provided with support members 42 on both sides along the third direction Z and projected along the third direction Z, the projection areas of all support members 42 are arranged at intervals. Therefore, the arrangement of multiple support members 42 is relatively uniform. Moreover, when the number of support members 42 is relatively small, the supporting effect of the support members 42 on the signal processing component 30 can be optimized, and the stability of the signal processing component 30 can be further improved.

[0192] It is understandable that, when projected along the third direction Z, the projection areas of the support 42 may partially or completely overlap.

[0193] In some embodiments, such as Figure 4 , Figure 5 and Figure 7 As shown, the bracket 4 also includes a base 43 connected to the bracket body 41. The number of signal processing components 30 is at least one, and the number of support members 42 corresponding to each signal processing component 30 is at least two. All support members 42 corresponding to each signal processing component 30 are connected to a base 43. The base 43 is located on the side of the bracket body 41 facing the battery cell assembly 10.

[0194] For example, the support member 42 is connected to the base 43, the base 43 is connected to the bracket body 41, and the support member 42 is connected to the bracket body 41 through the base 43.

[0195] For example, the base 43 and the support body 41 can be directly or indirectly connected.

[0196] For example, the base 43 and the support member 42 can be separate or integrated structures. In one specific embodiment, the base 43 and the support member 42 are integrated structures.

[0197] For example, the support member 42 supporting the same signal processing component 30 is connected to the same base 43.

[0198] In this embodiment, since all the support members 42 corresponding to each signal processing component 30 are connected to a base 43, all the support members 42 corresponding to each signal processing component 30 can be formed into a whole through the base 43. This allows for the synchronous assembly of all the support members 42 corresponding to each signal processing component 30, which is convenient for installation, improves the assembly efficiency of the support members 42, and thus improves the assembly efficiency of the battery device. In addition, it can also improve the positioning accuracy of the support members 42 to the signal processing component 30. Furthermore, compared with forming all the support members 42 in the battery device into a whole, it can reduce the cumulative error of the support members 42 assembly.

[0199] Understandably, all supports 42 corresponding to each signal processing component 30 can be connected to different bases 43.

[0200] In some embodiments, such as Figure 3 and Figure 4 As shown, the sampling transmission component 20 includes a line integration component 202. The line integration component 202 includes electrical lines, an integration component body 2020, and a communication connection part 203 connected to the integration component body 2020. The electrical lines are located between the integration component body 2020 and the communication connection part. Along the first direction X, the integration component body 2020 is located between the support body 41 and the signal processing component 30, and part of the communication connection part 203 is connected to the signal processing component 30.

[0201] Optionally, the integrated body 2020 and the communication connection part 203 can be an integral structure or a separate structure. For example, the integrated body 2020 and the communication connection part 203 can be welded together; the circuit integration component can also be integrally bent to form the integrated body 2020 and the communication connection part 203.

[0202] For example, the maximum dimension of the communication connection part 203 along the second direction Y is smaller than the maximum dimension of the integrated body 2020 along the second direction Y.

[0203] For example, a portion of the communication connection 203 is connected to the side of the signal processing assembly 30 that is away from the battery cell assembly 10 along the first direction X.

[0204] For example, electrical wiring is provided in the integrated body 2020 and the communication connection part 203, thereby enabling electrical connection between the integrated body 2020 and the communication connection part 203.

[0205] For example, at least one support member 42 has a through portion 422 passing through the communication connection portion 203.

[0206] For example, at least one through portion 422 of the support member 42 is offset from the communication connection portion 203.

[0207] For example, the sampling transmission device also includes a sampling terminal 201, which is connected to the integrated body 2020. The sampling terminal 201 transmits the collected signal to the integrated body 2020, and the integrated body 2020 then transmits the signal to the signal processing component 30 through the communication connection part 203.

[0208] For example, such as Figure 3 and Figure 4 As shown, the signal processing component 30 and the integrated body 2020 are spaced apart along the first direction X.

[0209] For example, such as Figure 3 , Figure 9 and Figure 10 As shown, the communication connection part 203 includes at least two communication connection segments connected in sequence. At least one communication connection segment is located on the side of the signal processing component 30 opposite to the battery cell assembly 10 along the first direction X and is electrically connected to the signal processing component 30. The other communication connection segment is connected between the communication connection segment electrically connected to the signal processing component 30 and the integrated body 2020.

[0210] In this embodiment, since part of the communication connection unit 203 is connected to the signal processing component 30, an electrical connection between the sampling transmission unit and the signal processing component 30 can be achieved.

[0211] In some embodiments, the projection of the communication connection portion 203 onto the same projection plane along the first direction X overlaps with the projection portion of the signal processing component 30.

[0212] For example, such as Figure 3 and Figure 4 As shown, when projected along the first direction X into the same projection plane, part or all of the communication connection segment connected to the signal processing component 30 overlaps with the projection of the signal processing component 30.

[0213] In this embodiment, since the projection of the communication connection part 203 onto the same projection plane along the first direction X overlaps with the projection of the signal processing component 30, the overlapping portion of the communication connection part 203 and the signal processing component 30 can be electrically connected to the overlapping portion of the signal processing component 30 and the communication connection part 203, resulting in a simple structure.

[0214] It is understandable that when projected along the first direction X into the same projection plane, the projection of the communication connection part 203 and the projection of the signal processing component 30 may not overlap.

[0215] In some embodiments, along the first direction X, a portion of the communication connection portion 203 is located on the side of the signal processing component 30 opposite to the integrated body 2020.

[0216] In this embodiment, the space on the side of the signal processing component 30 away from the integrated body 2020 is relatively large, which facilitates the connection between the communication connection part 203 and the signal processing component 30.

[0217] It is understandable that, along the first direction X, a portion of the communication connection 203 may also be located on the side of the signal processing assembly 30 facing the integrated body 2020.

[0218] In some embodiments, such as Figure 3 and Figure 5 As shown, the integrated body 2020 has at least one clearance hole 411; the support member 42 passes through the clearance hole 411 to support the signal processing assembly 30, and at least one support member 42 is offset from the communication connection portion 203; and / or at least one support member 42 passes through the clearance hole 411 to support the signal processing assembly 30 and the communication connection portion 203.

[0219] For example, the clearance hole 411 may be formed by recessing a portion of the side of the integrated body 2020 along the third direction Z, or the clearance hole 411 may be formed by opening a hole at the middle position of the integrated body 2020.

[0220] This application does not specifically limit the shape and size of the clearance hole 411, as long as it allows part of the support member 42 to pass through the sampling transmission member body.

[0221] In this embodiment, since the integrated body 2020 has at least one clearance hole 411, the support member 42 does not occupy space outside the integrated body 2020.

[0222] It is understandable that the integrated body 2020 may not have the clearance hole 411, and the position of the support 42 may avoid the position of the integrated body 2020.

[0223] In some embodiments, such as Figure 3 and Figure 4 As shown, along the first direction X, the integrated body 2020 and the signal processing component 30 are spaced apart.

[0224] In this embodiment, clearance space is provided for the devices or sampling transmission components in the signal processing component 30, reducing the probability of damage to the devices or sampling transmission components caused by squeezing them.

[0225] In some embodiments, such as Figure 3 and Figure 14 As shown, the battery device includes at least two sampling modules 2, which include a first sampling module 2a and a second sampling module 2b. The first sampling module 2a and the second sampling module 2b sample the same physical quantity of the same battery cell assembly 10.

[0226] In some embodiments, both the first sampling module 2a and the second sampling module 2b can sample the same battery cell assembly 10, thereby forming sampling redundancy.

[0227] In some embodiments, such as Figure 3 and Figure 9 As shown, the battery device includes a busbar 5, which connects adjacent battery cells 1 along the second direction Y. The sampling terminals 201 of the first sampling module 2a and the second sampling module 2b are respectively connected to the two sides of the busbar 5 along the first direction X. Thus, the first sampling module 2a and the second sampling module 2b can collect physical parameters such as temperature and / or voltage of the same battery cell assembly.

[0228] In some embodiments, such as Figure 3 As shown, the sampling terminals 201 of the first sampling module 2a and the sampling terminals 201 of the second sampling module 2b are stacked in the first direction X.

[0229] In some embodiments, such as Figure 3 As shown, along the first direction X, the sampling terminal 201 of the first sampling module 2a and the sampling terminal 201 of the second sampling module 2b are respectively connected to two opposite sides of the circuit integration component of the first sampling module 2a and the circuit integration component of the second sampling module 2b.

[0230] In some embodiments, within the same projection plane projected along the first direction X, the projections of different sampling terminals connected to the same busbar have overlapping portions.

[0231] Since the first sampling module 2a and the second sampling module 2b sample the same physical quantity of the same battery cell assembly, that is, two sampling modules 2 are set up for the same battery cell assembly, and the two sampling modules collect the same physical quantity of the battery cell assembly, the probability of missing or inaccurate physical quantity of the battery cell assembly due to damage or abnormality of a single sampling module can be reduced. The battery cell assembly can be monitored and managed more effectively based on at least one of the collected physical parameters such as temperature, voltage, and current, so that the battery cell assembly can work normally, which is conducive to further extending the service life of the battery device, and can also further reduce the probability of thermal runaway of the battery cell assembly.

[0232] In some embodiments, such as Figure 14 As shown, the first sampling module 2a includes a first sampling transmission component 20a and a first signal processing component 30a. The first signal processing component 30a processes the electrical signals of the battery cells collected by the first sampling transmission component 20a. The second sampling module 2b includes a second sampling transmission component 20b and a second signal processing component 30b. The second signal processing component 30b processes the electrical signals of the battery cells 1 collected by the second sampling transmission component 20b. The battery device also includes a battery management system, which includes at least two main control modules 3, including a first main control module 3a and a second main control module 3b. The first signal processing component 30a is communicatively connected to the first main control module 3a, and the second signal processing component 30b is communicatively connected to the second main control module 3b.

[0233] In some embodiments, such as Figure 14 As shown, the battery device includes at least two sampling systems, each including a first sampling module and a second sampling module. The at least two sampling systems respectively collect physical quantities of at least two sets of battery cell components 10. At least two first signal processing components 30a in the at least two sampling systems are communicatively connected to a first main control module 3a, and at least two second signal processing components 30b in the at least two sampling systems are communicatively connected to a second main control module 3b.

[0234] For example, at least two sampling transmission elements 20 include a first sampling transmission element 20a and a second sampling transmission element 20b.

[0235] For example, the first sampling transmission element 20a includes a first sampling transmission element 21 and a second sampling transmission element 22.

[0236] For example, the second sampling transmission element 20b includes a first sampling transmission element 21 and a second sampling transmission element 22.

[0237] For example, such as Figure 9As shown, the upper and lower sampling transmission components 20 are respectively the first sampling transmission component 20a and the second sampling transmission component 20b. The sampling transmission component 20 in the same layer includes the first sampling transmission component 21 and the second sampling transmission component 22.

[0238] For example, at least two signal processing components 30 include a first signal processing component 30a and a second signal processing component 30b.

[0239] For example, such as Figure 3 As shown, a group of battery cell components corresponds to at least two signal processing components 30, with the signal processing component 30 on the left being the first signal processing component 30a and the signal processing component 30 on the right being the second signal processing component 30b.

[0240] In some embodiments, such as Figure 3 and Figure 9 As shown, the first sampling transmission element 20a and the second sampling transmission element 20b are arranged along a first direction X, and the first signal processing component 30a and the second signal processing component 30b are arranged along a second direction Y. In some embodiments, such as Figure 9 As shown, in the first sampling module 2a, the first sampling transmission component 20a includes a first sampling transmission component 21 and a second sampling transmission component 22.

[0241] In some embodiments, such as Figure 9 As shown, in the second sampling module 2b, the second sampling transmission component 20b includes a first sampling transmission component 21 and a second sampling transmission component 22.

[0242] Since the sampling module includes sampling transmission components and signal processing components, redundancy is set for both sampling transmission and signal processing. In addition, the main control module in the thermal management system is also set with redundancy accordingly. This can further improve the reliability of the thermal management of the battery device.

[0243] In some embodiments, such as Figure 3 , Figure 4 and Figure 12 As shown, the battery cell assembly 10 includes multiple battery cells 1, each battery cell 1 including an electrode terminal 14. The battery device includes a busbar 5, which connects to the electrode terminals 14 of different battery cells 1, thereby achieving electrical connection between the battery cells 1. The sampling terminal 201 can be electrically connected to the busbar 5 or the electrode terminals 14, and of course, it can also be electrically connected to other parts of the battery cell 1.

[0244] In some embodiments, there are multiple sampling terminals 201, and all or some of the battery cells in the battery cell assembly 10 are electrically connected to different sampling terminals 201.

[0245] In some embodiments, the sampling terminal 201 of the first sampling transmission member 20a and the sampling terminal 201 of the second sampling transmission member 20b are both electrically connected to the same battery cell assembly 10.

[0246] In some embodiments, the battery device includes a busbar 5, which connects adjacent battery cells along the second direction Y. The sampling terminals 201 of the first sampling transmission unit 20a and the sampling terminals 201 of the second sampling transmission unit 20b are respectively connected to opposite sides of the busbar along the first direction X. Thus, the first sampling transmission unit 20a and the second sampling transmission unit 20b can collect physical parameters such as temperature and / or voltage of the same battery cell.

[0247] In this embodiment, the first sampling transmission element 20a and the second sampling transmission element 20b sample the same physical quantity of the same battery cell assembly 10. This reduces the probability of missing or inaccurate physical quantities of the battery cell assembly 10 due to damage or abnormality of the sampling transmission element 20. It can more effectively monitor and manage the battery cell assembly 10 based on the collected physical parameters such as temperature and / or voltage, so that the battery cell assembly 10 can work normally, which is beneficial to extending the service life of the battery device and reducing the probability of thermal runaway of the battery cell assembly 10.

[0248] In some embodiments, such as Figure 3 and Figure 9 As shown, the first sampling transmission component 20a includes a first sampling terminal 201a and a first line integration component 202a, and the second sampling transmission component 20b includes a second sampling terminal 201b and a second line integration component 202b; the first line integration component 202a and the second line integration component 202b are stacked along the first direction X; the first signal processing component 30a and the second signal processing component 30b are arranged along the second direction Y, and the number of support members 42 is at least one, at least one support member 42 supports the first signal processing component 30a, at least one support member 42 supports the second signal processing component 30b, and the first direction X and the second direction Y intersect.

[0249] For example, at least two line integrations 202 include a first line integration 202a and a second line integration 202b.

[0250] For example, the first line integration 202a includes a first line integration sub-component 212 and a second line integration sub-component 222.

[0251] For example, the second circuit integration 202b includes a first circuit integration sub-component 212 and a second circuit integration sub-component 222.

[0252] For example, such as Figure 9As shown, the upper and lower layer circuit integration components 202 are respectively the first circuit integration component 202a and the second circuit integration component 202b. The first layer circuit integration component 202 includes a first sub-component 212 and a second sub-component 222.

[0253] For example, at least a plurality of sampling terminals include a first sampling terminal 201a and a second sampling terminal 201b, wherein the first sampling terminal 201a is connected to a first line integration 202a and the second sampling terminal 201b is connected to a second line integration 202b.

[0254] For example, a plurality of first sampling terminals 201a include a first sampling terminal sub-component 211 and a second sampling terminal sub-component 221, wherein, in the first sampling terminal 201a, the first sampling terminal sub-component 211 is connected to the first line integration component 212, and the second sampling terminal sub-component 221 is connected to the second line integration component 222.

[0255] For example, a plurality of second sampling terminals 201b include a first sampling terminal sub-component 211 and a second sampling terminal sub-component 221, wherein, in the second sampling terminal 201b, the first sampling terminal sub-component 211 is connected to the first line integration component 212, and the second sampling terminal sub-component 221 is connected to the second line integration component 222.

[0256] In some embodiments, in the first sampling transmission component 20a, the first sampling terminal 201a includes a first sampling terminal sub-component 211 and a second sampling terminal sub-component 221, and the first line integration component 202a includes a first line integration component 212 and a second line integration component 222.

[0257] In some embodiments, in the second sampling transmission component 20b, the second sampling terminal 201b includes a first sampling terminal sub-component 211 and a second sampling terminal sub-component 221, and the second line integration component 202b includes a first line integration component 212 and a second line integration component 222.

[0258] In some embodiments, along the first direction X, a portion of the first line integration 202a and a portion of the second line integration 202b are located between the signal processing component 30 and the battery cell assembly.

[0259] Therefore, not only can the first sampling module 2a and the second sampling module 2b sample the same physical quantity of the same battery cell assembly 10, but also, since the first line integration component 202a and the second line integration component 202b are relatively long components, their stacking along the first direction X can make full use of the space in the first direction X of the battery cell assembly 10 and reduce the occupation of space in the second direction Y and the third direction Z. Even if sampling transmission components 20 are set for multiple battery cell assemblies 10 arranged separately, they can be easily arranged. Moreover, since the first signal processing component 30a and the second signal processing component 30b are arranged along the second direction Y, the first line integration component 202a and the second line integration component 202b can be easily electrically connected to the first signal processing component 30a and the second signal processing component 30b, respectively.

[0260] It is understandable that the first signal processing component 30a and the second signal processing component 30b can also be arranged along the third direction Z.

[0261] In some embodiments, such as Figure 3 and Figure 9 As shown, the integrated body 2020 of the first sampling transmission unit 20a is located between the integrated body 2020 of the second sampling transmission unit 20b and the signal processing component 30. The number of communication connection parts 203 of the second sampling transmission unit 20b is at least two. All communication connection parts 203 of the second sampling transmission unit 20b are located on the same side of the second signal processing component 30b along a preset direction. The preset direction is arranged to intersect with the first direction X.

[0262] For example, the preset direction can be a second direction Y or a third direction Z.

[0263] For example, along the first direction X, the signal processing component 30 is located on one side of the integrated body 2020, and the second sampling transmission component 20b is formed such that the communication connection portion 203 is folded relative to the integrated body 2020 toward the side where the second signal processing component 30b is located, wherein all the communication connection portions 203 of the second sampling transmission component 20b are folded in the same direction.

[0264] For example, the circuit assembly includes an assembly body 2020 and a communication connection portion 203. Along the first direction X, the assembly body 2020 is located between the signal processing component 30 and the battery cell assembly 10. The communication connection portion 203 is folded relative to the assembly body 2020, thereby enabling the communication connection portion 203 to connect to the signal processing component 30. Furthermore, a portion of the communication connection portion 203 can be folded to the side of the signal processing component 30 opposite to the battery cell assembly 10 along the first direction X.

[0265] In this embodiment, since all communication connection parts of the second sampling transmission component are located on the same side of the second signal processing component along the second direction, after assembling the second sampling transmission component, folding the communication connection parts of the second signal processing component and the second sampling transmission component can realize the assembly of the first sampling transmission component.

[0266] It is understood that the communication connection section 203 of all the second sampling transmission components 20b can be connected to the opposite sides of the second signal processing component 30b along a preset direction.

[0267] In some embodiments, such as Figure 3 and Figure 9 As shown, the integrated body 2020 of the first sampling transmission component 20a is located between the integrated body 2020 of the second sampling transmission component 20b and the signal processing component 30. The communication connection part 203 of the first sampling transmission component 20a is connected to both sides of the first signal processing component 30a along a preset direction. The preset direction is arranged to intersect with the first direction X.

[0268] For example, the preset direction can be a second direction Y or a third direction Z.

[0269] For example, along the first direction X, the first signal processing component 30a is located on one side of the integrated body 2020, and the first sampling transmission component 20a is formed such that the communication connection portion 203 is folded relative to the integrated body 2020 toward the side where the first signal processing component 30a is located, wherein the folding direction of some of the communication connection portions 203 of the first sampling transmission component 20a is different.

[0270] For example, the sampling transmission device includes an integrated body 2020 and a communication connection portion 203. Along the first direction X, the integrated body 2020 is located between the signal processing component 30 and the battery cell assembly 10. The communication connection portion 203 is folded relative to the integrated body 2020, so that the communication connection portion 203 can be connected to the signal processing component 30. Furthermore, a portion of the communication connection portion 203 can be folded to the side of the signal processing component 30 opposite to the battery cell assembly 10 along the first direction X.

[0271] In this embodiment, since the communication connection portion 203 of the first sampling transmission member 20a is connected to both opposite sides of the first signal processing component 30a along a preset direction, the force on both opposite sides of the first signal processing component 30a along the preset direction is relatively uniform, which can improve the stability of the first signal processing component 30a. Both opposite sides of the first signal processing component 30a along the preset direction can be used for the internal circuitry of the first signal processing component 30a.

[0272] It is understood that the communication connection part 203 of the first sampling transmission member 20a may be connected to the opposite sides of the first signal processing component 30a along a preset direction.

[0273] In some embodiments, such as Figure 3 and Figure 4 As shown, each sampling transmission element 20 includes at least one sampling terminal 201, which is electrically connected to the battery cell assembly 10. The sampling terminals of the multiple sampling transmission elements stacked along the first direction X are all connected to the same battery cell assembly.

[0274] For example, the sampling terminal 201 can be a nickel strip.

[0275] Therefore, the sampling terminal 201 can be used to collect physical parameters such as temperature and / or voltage of the battery cell assembly 10.

[0276] In some embodiments, such as Figure 3 , Figure 4 and Figure 9 As shown, the circuit integration component includes an integration body 2020 and a communication connection portion 203 that are electrically connected. A sampling terminal 201 is disposed on the integration body 2020 and electrically connected to the integration body 2020 and the battery cell 1. A first signal processing component 30a is connected to the communication connection portion 203 of the circuit integration component of the first sampling transmission component 20a, thereby being electrically connected to the first sampling transmission component 20a. A second signal processing component 30b is connected to the communication connection portion 203 of the circuit integration component of the second sampling transmission component 20b, thereby being electrically connected to the second sampling transmission component 20b.

[0277] Because it is possible to achieve electrical connection between the first sampling transmission element 20a and the first signal processing component 30a, and to achieve electrical connection between the second sampling transmission element 20b and the second signal processing component 30b.

[0278] In some embodiments, when projected along the first direction X into the same projection plane, the projection of the communication connection portion 203 of the line integration component of the first sampling transmission member 20a overlaps with the projection portion of the first signal processing component 30a; when projected along the first direction X into the same projection plane, the projection of the communication connection portion 203 of the line integration component of the second sampling transmission member 20b overlaps with the projection portion of the second signal processing component 30b.

[0279] For example, when projected along the first direction X into the same projection plane, part or all of the communication connection segment of the line integration component of the first sampling transmission component 20a connected to the first signal processing component 30a overlaps with part of the projection of the first signal processing component 30a.

[0280] For example, when projected along the first direction X into the same projection plane, part or all of the communication connection segment of the line integration component of the second sampling transmission component 20b connected to the second signal processing component 30b overlaps with part of the projection of the second signal processing component 30b.

[0281] Therefore, when projected along the first direction X into the same projection plane, the overlapping portion of the projection of the communication connection part 203 and the projection of the first signal processing component 30a can be connected to the first signal processing component 30a, resulting in a simple structure; when projected along the first direction X into the same projection plane, the overlapping portion of the projection of the communication connection part 203 and the projection of the second signal processing component 30b can be connected to the second signal processing component 30b, resulting in a simple structure.

[0282] In some embodiments, when projected along the first direction X into the same projection plane, the projections of the communication connection portion 203 of the line integration component of the first sampling transmission component 20a, the first signal processing component 30a, and the integration body 2020 of the line integration component of the first sampling transmission component 20a overlap sequentially; when projected along the first direction X into the same projection plane, the projections of the communication connection portion 203 of the line integration component of the second sampling transmission component 20b, the second signal processing component 30b, and the integration body 2020 of the second sampling transmission component 20b overlap sequentially.

[0283] This reduces the overall size of the sampling transmission component 20 and the signal processing component 30, saving space occupied by the sampling transmission component 20 and the signal processing component 30.

[0284] In some embodiments, the sampling transmission component 20 further includes electrical wiring (not shown), and both the integrated body 2020 and the communication connection portion 203 are provided with electrical wiring (not shown). The electrical wiring is located on opposite sides of the wiring integrated component 202 along the first direction X.

[0285] For example, the electrical circuit (not shown) includes a communication line and a power supply line. The communication line is used to transmit analog or digital signals for collecting parameters such as temperature and / or voltage of individual battery cells, and the power supply line provides operating voltage to the sampling transmission device. For example, the electrical circuit (not shown) may also include auxiliary lines, which may include communication lines, equalization lines, ground wires, etc. These auxiliary lines can enhance the functionality and stability of the sampling transmission device. Since the electrical circuit located at the communication connection is electrically connected to the signal processing component, there is no need to additionally provide a wiring harness for connecting the power supply line, simplifying the wiring harness.

[0286] In some embodiments, such as Figure 3 and Figure 9As shown, the battery cell assembly 10 includes a plurality of first battery cells 1a and a plurality of second battery cells 1b arranged along a second direction; the sampling transmission member 20 extends along the second direction Y, and includes at least one sampling transmission member first sub-component 21 and at least one sampling transmission member second sub-component 22, the sampling transmission member first sub-component 21 and the sampling transmission member second sub-component 22 are arranged along the second direction Y, the sampling transmission member first sub-component 21 is electrically connected to the first battery cell 1a, and the sampling transmission member second sub-component 22 is electrically connected to the second battery cell 1b; wherein, the sampling transmission member first sub-component 21 has a first overlapping section on the side of the sampling transmission member second sub-component 22 along the second direction Y near the sampling transmission member second sub-component 22, and the sampling transmission member second sub-component 22 has a second overlapping section on the side of the sampling transmission member first sub-component 21 along the second direction Y, the first overlapping section and the second overlapping section overlap each other and are electrically connected along the first direction X, and the second direction Y intersects the first direction X.

[0287] In some embodiments, such as Figure 3 As shown, the first battery cell group 10a includes a plurality of first battery cells 1a arranged along the second direction Y.

[0288] In some embodiments, the second battery cell group 10b includes a plurality of second battery cells 1b arranged along the second direction Y.

[0289] In some embodiments, such as Figure 3 As shown, the part to the left of the dashed line L1 is the first battery cell group 10a, and the part to the right of the dashed line L1 is the second battery cell group 10b. The position of the dashed line L1 can be moved according to the actual situation.

[0290] In some embodiments, there may be multiple sampling transmission sub-components, which may be arranged sequentially along the second direction Y, and implemented by overlapping as a connection method.

[0291] like Figure 3 and Figure 9 As shown, the sampling transmission component 20 includes a first sampling transmission component 21 and a second sampling transmission component 22. Of course, the sampling transmission component 20 may include other sampling transmission component components. The first sampling transmission component 21 and the second sampling transmission component 22 are connected and electrically connected along the second direction Y.

[0292] In some embodiments, the first sub-component 21 of the sampling transmission component extends along the second direction Y.

[0293] In some embodiments, the second sub-component 22 of the sampling transmission component extends along the second direction Y.

[0294] In some embodiments, a battery cell assembly includes one or more battery cells. When a battery cell assembly 10 includes multiple battery cells 1, the multiple battery cells 1 in the same battery cell assembly 10 may be arranged along a second direction Y or a third direction Z. In one specific embodiment, the multiple battery cells in the same battery cell assembly 10 may be arranged along the second direction Y.

[0295] In some embodiments, such as Figure 3 and Figure 9 As shown, the first sub-component 21 of the sampling transmission component is electrically connected to the first battery cell 1a. The first sub-component 21 of the sampling transmission component can be directly or indirectly electrically connected to the first battery cell 1a. For example, the first sub-component 21 of the sampling transmission component includes a first sub-component 211 of the sampling terminal, which is connected to the first battery cell 1a, thereby realizing the electrical connection between the first sub-component 21 of the sampling transmission component and the first battery cell 1a.

[0296] In some embodiments, such as Figure 3 As shown, the second sub-component 22 of the sampling transmission component is electrically connected to the second battery cell 1b. The second sub-component 22 of the sampling transmission component can be directly or indirectly electrically connected to the second battery cell 1b. For example, the second sub-component 22 of the sampling transmission component includes a second sub-component 221 of the sampling terminal, which is connected to the second battery cell 1b, thereby realizing the electrical connection between the second sub-component 22 of the sampling transmission component and the second battery cell 1b.

[0297] In some embodiments, there are multiple sampling terminal second sub-components 221, and all or some of the battery cells in the second battery cell group 10b are electrically connected to different sampling terminal second sub-components 221.

[0298] In some embodiments, such as Figure 9 As shown, the portion of the first sub-component 21 of the sampling transmission component located within the dashed box O1 is the first overlapping segment, and the portion of the second sub-component 22 of the sampling transmission component located within the dashed box O1 is the second overlapping segment. Along the second direction Y, the overlapping portions of the first sub-component 21 and the second sub-component 22 of the sampling transmission component are their respective overlapping segments. The position of the dashed box O1 can be moved according to the actual situation.

[0299] In some embodiments, at least one of the first overlapping section and the second overlapping section is configured as a plate.

[0300] In some embodiments, both the first overlapping segment and the second overlapping segment are plate-shaped. Optionally, the first overlapping segment and the second overlapping segment overlap along the thickness direction of the plate-shaped first overlapping segment; or along the width direction of the plate-shaped first overlapping segment.

[0301] In one specific embodiment, both the first overlapping segment and the second overlapping segment are plate-shaped, the first overlapping segment and the second overlapping segment are perpendicular to the first direction X, and the first overlapping segment and the second overlapping segment overlap along the first direction X.

[0302] Optionally, the first lap segment and the second lap segment can be directly lapped together, for example, by welding; the first lap segment and the second lap segment can also be indirectly lapped together, for example, by lapping together through a connector.

[0303] In some embodiments, the portion of the power supply line located at the first overlap section is electrically connected to the portion of the power supply line located at the second overlap section.

[0304] In this embodiment, since the first overlapping section and the second overlapping section overlap and are electrically connected to each other, the sampling transmission component can be configured to have a longer length along the second direction, thus solving the length limitation of the sampling transmission component. For example, when the length of the battery cell assembly along the second direction is long, the battery cell signal exceeds the line range that a single-sided sampling board can carry, so a double-sided sampling board is required. However, due to the material of the sampling board itself, manufacturing difficulty, etc., the length of the sampling transmission component along the second direction is limited. In this embodiment, the first sub-component and the second sub-component of the sampling transmission component overlap along the second direction, which not only breaks through the length limitation of the sampling transmission component, but also allows some electrical components to be shared. Therefore, the overlapped sampling transmission component can be applied to battery cell assemblies with a longer length along the second direction, and it is also beneficial to reduce the number of parts in the battery device and simplify the wiring harness or layout design inside the battery device.

[0305] It is understandable that the same sampling transmission element can also include a single sampling transmission element.

[0306] In some embodiments, such as Figure 3 As shown, the sampling transmission component 20 includes a sampling terminal 201 and a circuit integration component 202 connected to the sampling terminal 201. The circuit integration component 202 includes an integration component body and electrical wiring; as Figure 4 and Figure 9As shown, the first sub-component 21 of the sampling transmission component includes a first sub-component 212 of the circuit integration component and a first sub-component of the sampling terminal. The first sub-component of the circuit integration component includes a first sub-component body 2120 and a first electrical circuit (not shown). The first electrical circuit is located on opposite sides of the first sub-component body 2120 along the first direction X. The first electrical circuit includes a first communication line and a first power supply line. The first sub-component of the sampling terminal 211 is electrically connected to the first battery cell 1a and the first communication line. The second sub-component 22 of the sampling transmission component includes a second sub-component 222 of the circuit integration component and a second sub-component of the sampling terminal. The second sub-component of the circuit integration component 222 includes a second sub-component body 2220 and a second electrical circuit (not shown). The second electrical circuit is located on opposite sides of the second sub-component body 2220 along the first direction X. The second electrical circuit (not shown) includes a second communication line and a second power supply line. The second sub-component of the sampling terminal 221 is electrically connected to the second battery cell 1b and the second communication line. The portion of the first power supply line located at the first overlap section is electrically connected to the portion of the second power supply line located at the second overlap section.

[0307] For example, such as Figure 9 As shown, each layer of the integrated component body 2020 in the upper and lower layers includes a first sub-component body 2120 and a second sub-component body 2220.

[0308] In some embodiments, the first electrical circuit (not shown) includes a first communication line and a first power supply line. The first communication line is used to transmit analog or digital signals for collecting parameters such as temperature and / or voltage of the first battery cell 1a. The first power supply line provides operating voltage for the first sub-component 21 of the sampling transmission device.

[0309] In some embodiments, the first electrical line (not shown) may further include a first auxiliary line, which may include a communication line, a balancing line, a ground wire, etc. The first auxiliary line can enhance the function of the first sub-component 21 of the sampling transmission device and improve the stability of the first sub-component 21 of the sampling transmission device.

[0310] In some embodiments, the second electrical circuit (not shown) includes a second communication line and a second power supply line. The second communication line is used to transmit analog or digital signals for collecting parameters such as temperature and / or voltage of the second battery cell 1b, and the second power supply line provides operating voltage for the second sub-component 22 of the sampling transmission device.

[0311] In some embodiments, the second electrical line (not shown) may also include a second auxiliary line, which may include a communication line, a balancing line, a ground line, etc. The second auxiliary line can enhance the function of the second sub-component 22 of the sampling transmission device and improve the stability of the second sub-component 22 of the sampling transmission device.

[0312] The first sampling terminal component 211 collects the physical parameters of the first battery cell 1a and transmits the collected parameters to the first communication line; the second sampling terminal component 221 collects the physical parameters of the second battery cell 1b and transmits the collected parameters to the second communication line.

[0313] For example, the first sampling terminal 211 and / or the second sampling terminal 221 may be nickel sheets.

[0314] Optionally, the number of sampling terminal first sub-components 211 can be one, two, three or more, etc.

[0315] In some embodiments, a plurality of sampling terminals first sub-components 211 are staggered along a first direction X.

[0316] In some embodiments, there are multiple sampling terminal first sub-components 211, and each sampling terminal first sub-component 211 collects the physical parameters of each first battery cell in the first battery cell group 10a.

[0317] Optionally, the number of sampling terminal second sub-components 221 can be one, two, three or more, etc.

[0318] In some embodiments, there are multiple sampling terminal second sub-components 221, and each sampling terminal second sub-component 221 collects the physical parameters of each second battery cell in the second battery cell group 10b.

[0319] In some embodiments, a plurality of sampling terminal second sub-components 221 are staggered along a second direction Y.

[0320] For example, such as Figure 3 and Figures 9 to 11 As shown, the first circuit assembly also includes a first communication connection portion 213 connected to the first sub-component body 2120, and the first communication connection portion 213 is also provided with a first electrical line; the second circuit assembly also includes a second communication connection portion 223 connected to the second sub-component body 2220, and the second communication connection portion 223 is also provided with a second electrical line; the signal processing component 30 is connected to both the first communication connection portion 213 and the second communication connection portion 223, thereby being electrically connected to both the first sub-component 21 of the sampling transmission component and the second sub-component 22 of the sampling transmission component.

[0321] In some embodiments, the plurality of communication connection parts include a first communication connection part 213 and a second communication connection part 223.

[0322] In some embodiments, the battery cell assembly 10 and the sampling transmission element 20 are arranged along a first direction X, and the first power supply line is welded to the second power supply line.

[0323] In some embodiments, the direction in which the first overlap segment and the second overlap segment overlap is the same as the arrangement direction of the battery cell assembly 10 and the sampling transmission element 20.

[0324] Because the two power supply lines are welded together, connectors and other components used to electrically connect the two power supply lines are eliminated, saving space occupied by parts and reducing the overall size of the multiple sampling transmission components 20 along the first direction X, thereby reducing the size of the battery device along the first direction X.

[0325] In this embodiment, electrical lines are present on both opposite sides of the integrated component body. Compared to a case where electrical lines are present on only one side of the integrated component body, more electrical lines can be arranged without increasing the size of the integrated component body. Therefore, it is possible to sample more battery cells in the battery cell assembly or collect more types of physical parameters without increasing the number of components. Furthermore, since the first power supply line and the second power supply line are electrically connected, the first and second sub-components of the sampling transmission component can share a power supply module, reducing the number of power supply modules required in the battery device.

[0326] In some embodiments, such as Figure 3 and Figure 9 As shown, in the same sampling transmission device 20, the sampling transmission device includes multiple sampling terminals 201. The multiple sampling terminals 201 include at least one sampling terminal first sub-device 211 electrically connected to the first sub-device body 2120 and at least one sampling terminal second sub-device 221 electrically connected to the second sub-device body 2220. The sampling transmission device first sub-device 21 also includes at least one sampling terminal first sub-device 211 electrically connected to the first sub-device body 2120. The sampling terminal first sub-device 211 is electrically connected to the first battery cell 1a and the first communication line. The sampling transmission device second sub-device 22 also includes at least one sampling terminal second sub-device 221 electrically connected to the second sub-device body 2220. The sampling terminal second sub-device 221 is electrically connected to the second battery cell 1b and the second communication line.

[0327] Therefore, it is possible to use the first sampling terminal component to collect physical parameters such as temperature and / or voltage of the first battery cell, and to use the second sampling terminal component to collect physical parameters such as temperature and / or voltage of the second battery cell.

[0328] In some embodiments, such as Figure 9As shown, the first sub-component body 2120 includes a first main body portion 2121 and a first extension portion 2122 connected along the second direction Y. The first overlapping section includes the first extension portion 2122. The sampling terminal first sub-component 211 is connected to the side of the first main body portion 2121 along the third direction Z. The third direction Z intersects both the first direction X and the second direction Y. The second sub-component body 2220 includes a second main body portion 2221. The second overlapping section includes a portion of the second main body portion 2221 that is close to the first sub-component body 2120 along the second direction Y. The sampling terminal second sub-component 221 is connected to the second main body portion 2221. At least the first extension portion 2122 of the first sub-component body 2120 overlaps with the second main body portion 2221 of the second overlapping section.

[0329] Optionally, the first overlapping section may include a portion of the first extension 2122, all of the first extension 2122, or all of the first extension 2122 and a portion of the first main body 2121.

[0330] Since the first sampling terminal sub-component 211 is connected to the first main body, even if the first extension overlaps with the second main body, it is not easy for the first sampling terminal sub-component 211 and the second sampling terminal sub-component 221 to interfere with each other. Moreover, the overlap area between the first extension 2122 and the second overlap section can be formed to be longer along the second direction Y, which is beneficial to improving the rigidity of the overlap section and the connection reliability and insulation reliability of the first power supply line and the second power supply line in the overlap section.

[0331] For example, the first extension 2122 overlaps with the second overlap section, avoiding the position where the sampling terminal second sub-component 221 is connected to the second overlap section.

[0332] In some embodiments, such as Figure 9 As shown, the second overlap section also includes a second sampling terminal component 221, at least one second sampling terminal component 221 of the second overlap section is located on the side of the first extension 2122 along the third direction Z.

[0333] Optionally, one, two, three or more sampling terminals of the second overlap section may be located on the side of the first extension 2122 along the third direction Z.

[0334] Therefore, the first extension 2122, the second overlapping section, and the sampling terminal second sub-component 221 of the second overlapping section can share a region along the second direction Y, which is beneficial to arrange the sampling transmission first sub-component 21 and the sampling transmission second sub-component 22 compactly. Moreover, there is no need to make special adjustments to the arrangement position of some sampling terminals or the spacing between battery cells in the sampled battery cell assembly 10. Therefore, it is possible to reliably sample battery cell assemblies 10 with a long length along the second direction Y.

[0335] In some embodiments, such as Figure 9 As shown, the first sub-component body 2120 includes a first main body portion 2121, and a first overlapping section includes a portion of the first main body portion 2121 that is close to the second sub-component body 2220 along the second direction Y. The sampling terminal first sub-component 211 is electrically connected to the first main body portion 2121. The second sub-component body 2220 includes a second main body portion 2221 and a second extension portion 2222 connected along the second direction Y. The second overlapping section includes the second extension portion 2222. The sampling terminal second sub-component 221 is connected to the side of the second main body portion 2221 along the third direction Z. The third direction Z intersects both the first direction X and the second direction Y. At least the second extension portion 2222 of the second sub-component body 2220 overlaps with the first main body portion 2121 of the first overlapping section.

[0336] Optionally, the second overlapping section may include a portion of the second extension 2222, all of the second extension 2222, or all of the second extension 2222 and a portion of the second main body 2221.

[0337] Since the second sub-component 221 of the sampling terminal is connected to the second main body, even if the second extension overlaps with the first main body, it is not easy for the first sub-component 211 of the sampling terminal and the second sub-component 221 of the sampling terminal to interfere with each other. Moreover, the overlap area between the second extension 2222 and the first overlap section can be formed to be longer along the second direction Y, which is beneficial to improve the rigidity of the overlap section and the connection reliability and insulation reliability of the first power supply line and the second power supply line in the overlap section.

[0338] In some embodiments, the first overlap section further includes a partial sampling terminal first sub-component 211, at least one sampling terminal first sub-component 211 of the first overlap section being located on the side of the second extension 2222 along the third direction Z.

[0339] Optionally, one, two, three or more sampling terminals 211 of the first overlapping section may be located on the side of the second extension 2222 along the third direction Z.

[0340] Therefore, the second extension 2222, the first overlapping section, and the sampling terminal first sub-component 211 of the first overlapping section can share a region along the second direction Y, which is beneficial to arrange the sampling transmission first sub-component 21 and the sampling transmission second sub-component 22 compactly. Moreover, there is no need to make special adjustments to the arrangement position of some sampling terminals or the spacing between battery cells in the sampled battery cell assembly 10. Therefore, it is possible to reliably sample battery cell assemblies 10 that are relatively long along the second direction.

[0341] In some embodiments, such as Figure 3As shown, the battery device includes at least one sampling module 2. The sampling module 2 includes a sampling transmission component 20 and a signal processing component 30. The signal processing component 30 processes the electrical signals of the battery cell 1 collected by the sampling transmission component 20. The signal processing component 30 is electrically connected to both the first sub-component 21 and the second sub-component 22 of the sampling transmission component. Figure 14 As shown, the battery device also includes a battery management system, which includes at least one main control module 3, and the main control module is communicatively connected to the signal processing component 30.

[0342] In some embodiments, in the first sampling module 2a, projections are made along the first direction X into the same projection plane, and the projections of the first overlapping segment, the second overlapping segment, and the first signal processing component 30a partially overlap each other; in the second sampling module 2b, projections are made along the first direction X into the same projection plane, and the projections of the first overlapping segment, the second overlapping segment, and the second signal processing component 30b partially overlap each other.

[0343] Therefore, it is easy to realize that the first sub-component of the sampling transmission device and the second sub-component of the sampling transmission device share the signal processing component, which is conducive to the miniaturization of the signal processing component and also conducive to reducing the length of the first communication connection part and the second communication connection part along the second direction.

[0344] In some embodiments, such as Figure 9 As shown, the overlapping portions of the first overlapping segment and the second overlapping segment in the first sampling transmission component 20a and the overlapping portions of the first overlapping segment and the second overlapping segment in the second sampling transmission component 20b are at least partially offset along the second direction Y.

[0345] Therefore, the communication connection part in the first sampling transmission component and the communication connection part in the second sampling transmission component can be staggered along the second direction, making it less likely for the communication connection part in the first sampling transmission component and the communication connection part in the second sampling transmission component to interfere with each other. Moreover, each communication connection part can be folded to achieve connection with the signal processing component.

[0346] In some embodiments, such as Figure 3 and Figure 9As shown, along the first direction X, the body of the first line integration component 202a is located between the body of the second line integration component 202b and the first signal processing component 30a and the second signal processing component 30b. In the first sub-component 212 of the line integration component 202b, the first communication connection portion 213 is folded relative to the first sub-component body 2120 to which it is connected. In the second sub-component 222 of the line integration component 202b, the second communication connection portion 223 is folded relative to the second sub-component body 2220 to which it is connected. The first communication connection portion 213 and the second communication connection portion 223 in the second line integration component 202b are folded relative to the second signal processing component 30b on the same side of the third direction Z to the side of the second signal processing component 30b away from the first sub-component body 2120 and the second sub-component body 2220 in the second line integration component 202b along the second direction Y and are both connected to the second signal processing component 30b.

[0347] Since the main body of the first line integration component 202a is located between the second line integration component 202b and the first signal processing component 30a and the second signal processing component 30b along the first direction X, it can share space in the second direction Y and the third direction Z, which is beneficial to improving space utilization. In addition, the connection with the second signal processing component 30b can be achieved by folding the first communication connection part 213 and the second communication connection part 223 in the second line integration component 202b, which is simple in structure. Moreover, since the first communication connection part 213 and the second communication connection part 223 are both folded and connected from the same side of the second signal processing component 30b, during the assembly or maintenance stage, the second signal processing component 30b can be flipped with the first communication connection part 213 and the second communication connection part 223 as the connection part to expand the space between the main body of the second signal processing component 30b and the second line integration component 202b, which facilitates the installation, maintenance and other operations of other components in this space.

[0348] Further details are provided. As described above, the first line integration component 202a and the second line integration component 202b are stacked, with the second line integration component 202b located between the first line integration component 202a and the battery cell assembly 10. The first line integration component 202a is located between the first signal processing component 30a and the second signal processing component 30b and the second line integration component 202b, i.e., along the first direction X toward the battery cell assembly 10. The signal processing component 30 (the first signal processing component 30a and the second signal processing component 30b), the first line integration component 202a, and the second line integration component 202b are stacked sequentially.

[0349] To ensure that the assembly of the communication connection portion 203 of the second line integration component 202b does not obstruct the installation of the first line integration component 202a, the two communication connection portions 203 of the second sampling transmission component 20b are arranged on the same side. This allows a flexible hinge structure to be formed between the communication connection portion 203 of the second line integration component 202b and the second sampling transmission component 20b after connection with the second signal processing component 30b. This enables the opening and closing of the second sampling transmission component 20b and the second signal processing component 30b. Therefore, after the assembly of the second sampling transmission component 20b and the second signal processing component 30b is completed, the flexible hinge structure can be opened, and the first sampling transmission component 20a and the first signal processing component 30a can be stacked on top of the second sampling transmission component 20b. Then, the flexible hinge structure can be closed, and the second signal processing component 30b can be stacked on top of the first sampling transmission component 20a.

[0350] In some embodiments, such as Figure 3 and Figure 9 As shown, the connection points between the second signal processing component 30b and the first communication connection portion 213 and the second signal processing component 30b and the second communication connection portion 223 are offset along the second direction Y.

[0351] Therefore, the first communication connection part and the second communication connection part in the second sampling transmission element can be staggered along the second direction, making it less likely that the positions of the first communication connection part and the second communication connection part in the second sampling transmission element will interfere.

[0352] In some embodiments, such as Figure 3 and Figure 9 As shown, in the first sub-component 212 of the first line integration component 202a, the first communication connection portion 213 is folded relative to the first sub-component body 2120 to which it is connected; in the second sub-component 222 of the first line integration component 202a, the second communication connection portion 223 is folded relative to the second sub-component body 2220 to which it is connected; the first communication connection portion 213 and the second communication connection portion 223 in the first line integration component 202a are folded relative to the first signal processing component 30a on the same side or opposite side in the third direction Z to the side of the first signal processing component 30a away from the first sub-component body 2120 and the second sub-component body 2220 in the first line integration component 202a along the first direction X and are both connected to the first signal processing component 30a.

[0353] This makes it easy to connect the first circuit integration component to the first signal processing component.

[0354] In some embodiments, such as Figure 3 and Figure 9As shown, the connection points between the first signal processing component 30a and the first communication connection portion 213 and the connection points between the first signal processing component 30a and the second communication connection portion 223 are offset along the second direction Y.

[0355] Therefore, the first communication connection part and the second communication connection part in the first sampling transmission element can be staggered along the second direction, making it less likely that the positions of the first communication connection part and the second communication connection part in the first sampling transmission element will interfere.

[0356] In some embodiments, the battery device includes a busbar 5 electrically connected to the battery cell assembly 10, and the busbar 5 is connected to the support body.

[0357] In the embodiments of this application, this enables support for the support body.

[0358] In some embodiments, the signal processing component is constructed using a printed circuit board.

[0359] In the embodiments of this application, the printed circuit board is not easily deformed, which can improve the stability of the signal processing components.

[0360] A second aspect of this application provides an electrical device, which includes the battery device described above.

[0361] In this embodiment of the application, since the power-consuming device includes the aforementioned battery device, the position of the signal processing component in the power-consuming device can be fixed, thereby improving the functional stability of the signal processing component and thus improving the functional stability of the power-consuming device.

[0362] In a specific embodiment, such as Figure 13 As shown, the support body 41 has a clearance opening 412, as referenced. Figure 3 , Figure 4 and Figure 8 As shown, the base 43 is located on the side of the bracket body 41 facing away from the signal processing component 30 along the first direction X. The support member 42 connected to the base 43 passes through the clearance opening 412 and the sampling transmission component 20. The support member 42 supports the signal processing component 30. The diameter of the first hole formed by the signal processing component 30 is about 0.2 mm larger than the diameter of the through portion 422. The support member 42 is riveted into a mushroom head by hot riveting. The bearing portion 4211 fixes the signal processing component 30. The base 4212 and the back of the bracket body 41 are fixed with adhesive, or they can be fixed by hot riveting.

[0363] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of this application.

Claims

1. A battery device, characterized by, include: A battery cell assembly, comprising multiple battery cells; A sampling module, comprising a sampling transmission component and a signal processing component electrically connected to the sampling transmission component, wherein the sampling transmission component is electrically connected to the battery cell and acquires the physical quantities of the battery cell; The bracket includes a bracket body and a support member connected to the bracket body; The battery cell assembly, the support body, the sampling and transmission component, and the signal processing component are arranged sequentially along a first direction. Along the first direction, the support member is at least partially located on the side of the support body opposite to the battery cell, and the support member supports the signal processing component.

2. The battery device according to claim 1, characterized in that, The support includes a support base connected to the bracket body and a through portion connected to the support base on a side opposite to the bracket body. The through portion passes through the signal processing component. Along the first direction, the support base abuts against the signal processing component to support the signal processing component.

3. The battery device according to claim 2, characterized in that, The number of the support members is at least one, and the through portion of at least one of the support members is offset from the sampling transmission member.

4. The battery device according to claim 3, characterized in that, At least one of the support members has a through portion that passes through the sampling transmission member.

5. The battery device according to claim 4, characterized in that, The cross-sectional area of ​​the through portion that is offset from the sampling transmission element is greater than the cross-sectional area of ​​the through portion that passes through the sampling transmission element.

6. The battery device according to claim 5, characterized in that, The diameter of the through portion offset from the sampling transmission element is larger than the diameter of the through portion passing through the sampling transmission element.

7. The battery device according to any one of claims 2 to 6, characterized in that, Along the first direction, the projection area of ​​the through portion is located within the projection area of ​​the support base.

8. The battery device according to any one of claims 2 to 6, characterized in that, Along the first direction, the support base has at least two bearing portions on the side facing the signal processing component, the at least two bearing portions are arranged circumferentially spaced along the support base, and the bearing portions abut against the signal processing component.

9. The battery device according to any one of claims 1 to 6, characterized in that, The same battery cell assembly includes at least two battery cells arranged sequentially along a second direction, which intersects with the first direction. The signal processing component is provided with support members on opposite sides along a third direction, which intersects with both the first and second directions. The projection areas of all the support members are arranged at intervals along the third direction.

10. The battery device according to any one of claims 1 to 6, characterized in that, The bracket also includes a base connected to the bracket body. The number of signal processing components is at least one, and the number of support members corresponding to each signal processing component is at least two. All the support members corresponding to each signal processing component are connected to one of the bases, and the base is located on the side of the bracket body facing the battery cell assembly.

11. The battery device according to any one of claims 1 to 6, characterized in that, The sampling transmission component includes a circuit assembly, which includes electrical wiring, an assembly body, and a communication connection portion connected to the assembly body. The electrical wiring is disposed within the assembly body and the communication connection portion. Along the first direction, the integrated body is located between the bracket body and the signal processing component, and a portion of the communication connection is connected to the signal processing component.

12. The battery device according to claim 11, characterized in that, Projecting along the first direction onto the same projection plane, the projection of the communication connection overlaps with the projection of the signal processing component.

13. The battery device according to claim 12, characterized in that, Along the first direction, a portion of the communication connection is located on the side of the signal processing component opposite to the integrated body.

14. The battery device according to claim 11, characterized in that, The integrated component body has at least one clearance hole; The support member passes through the clearance hole to support the signal processing component, and at least one of the support members is offset from the communication connection portion; and / or At least one of the support members passes through the clearance hole to support the signal processing component and the communication connection.

15. The battery device according to claim 11, characterized in that, Along the first direction, the integrated component body and the signal processing component are spaced apart.

16. The battery device according to claim 11, characterized in that, The battery device includes at least two sampling modules, including a first sampling module and a second sampling module, wherein the first sampling module and the second sampling module sample the same physical quantity of the same battery cell assembly.

17. The battery device according to claim 16, characterized in that, The first sampling module includes a first sampling transmission element and a first signal processing component, wherein the first signal processing component processes the electrical signals of the battery cells collected by the first sampling transmission element; The second sampling module includes a second sampling transmission component and a second signal processing component, wherein the second signal processing component processes the electrical signals of the battery cells collected by the second sampling transmission component; The battery device further includes a battery management system, which includes at least two main control modules, including a first main control module and a second main control module. The first signal processing component is communicatively connected to the first main control module, and the second signal processing component is communicatively connected to the second main control module.

18. The battery device according to claim 17, characterized in that, The first sampling transmission device includes a first sampling terminal and a first line integration component, and the second sampling transmission device includes a second sampling terminal and a second line integration component; The first circuit assembly and the second circuit assembly are stacked along a first direction; The first signal processing component and the second signal processing component are arranged along the second direction. The number of the support members is at least one, at least one of the support members supports the first signal processing component, at least one of the support members supports the second signal processing component, and the first direction and the second direction intersect.

19. The battery device according to claim 18, characterized in that, The integrated body of the first sampling transmission device is located between the integrated body of the second sampling transmission device and the signal processing component. The second sampling transmission device has at least two communication connection parts. All communication connection parts of the second sampling transmission device are located on the same side of the second signal processing component along a preset direction, which is arranged intersecting the first direction.

20. The battery device according to claim 18 or 19, characterized in that, The integrated body of the first sampling transmission device is located between the integrated body of the second sampling transmission device and the signal processing component. The first signal processing component is connected to the communication connection portion of the first sampling transmission device on both sides along a preset direction. The preset direction is arranged intersecting the first direction.

21. The battery device according to any one of claims 1 to 6, characterized in that, The battery cell assembly includes a plurality of first battery cells and a plurality of second battery cells arranged along a second direction; The sampling transmission element extends along the second direction, and the sampling transmission element includes at least one first sampling transmission element sub-element and at least one second sampling transmission element sub-element. The first sampling transmission element sub-element and the second sampling transmission element sub-element are arranged along the second direction. The first sampling transmission element sub-element is electrically connected to the first battery cell, and the second sampling transmission element sub-element is electrically connected to the second battery cell. The first sub-component of the sampling transmission component has a first overlapping section on the side of the second sub-component of the sampling transmission component along the second direction, and the second sub-component of the sampling transmission component has a second overlapping section on the side of the first sub-component of the sampling transmission component along the second direction. Along the first direction, the first overlapping section and the second overlapping section overlap each other and are electrically connected. The second direction intersects the first direction.

22. The battery device according to claim 21, characterized in that, The sampling transmission device includes a sampling terminal and a line integration component connected to the sampling terminal. The line integration component includes an integration component body and electrical wiring. The sampling transmission component first sub-component includes a circuit integration component first sub-component and a sampling terminal first sub-component. The circuit integration component first sub-component includes a first sub-component body and a first electrical circuit. The first electrical circuit is located on opposite sides of the first sub-component body along the first direction. The first electrical circuit includes a first communication line and a first power supply line. The sampling terminal first sub-component is electrically connected to the first battery cell and the first communication line. The second sub-component of the sampling transmission component includes a second sub-component of the circuit integration component and a second sub-component of the sampling terminal. The second sub-component of the circuit integration component includes a second sub-component body and a second electrical circuit. The second electrical circuit is located on opposite sides of the second sub-component body along the first direction. The second electrical circuit includes a second communication line and a second power supply line. The second sub-component of the sampling terminal is electrically connected to the second battery cell and the second communication line. The portion of the first power supply line located at the first overlapping section is electrically connected to the portion of the second power supply line located at the second overlapping section.

23. The battery device according to any one of claims 1 to 6, characterized in that, The battery device includes a busbar that is electrically connected to the battery cell assembly, and the busbar is connected to the support body.

24. The battery device according to any one of claims 1 to 6, characterized in that, The signal processing component includes a printed circuit board.

25. An electrical appliance, characterized in that, Includes the battery device according to any one of claims 1 to 24.

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