Battery device and electric device

Abstract

The application relates to the field of batteries, and provides a battery device and a power utilization device. The battery device comprises a battery monomer and a sampling assembly. The battery monomer has an electrode terminal. The sampling assembly comprises a spacer, a limiting support and a plurality of sampling lines. The spacer is arranged on one side of the battery monomer with the electrode terminal along a first direction. Each sampling line is arranged on the side of the spacer away from the battery monomer along the first direction. One end of each sampling line is electrically connected to the electrode terminal. The limiting support is fixed to the spacer and forms a limiting groove between the limiting support and the spacer along the first direction. The plurality of sampling lines are arranged in the limiting groove. Thus, the laying height of the plurality of sampling lines in the limiting groove along the first direction is low, the overall space occupied by the sampling assembly can be reduced, the plurality of sampling lines are regularly and uniformly laid in the limiting groove, the space can be reduced, and the overall space utilization of the sampling assembly can be improved. Therefore, the space utilization and structural compactness of the battery device can be optimized.

Description

Technical Field

[0001] This application belongs to the field of battery technology, and in particular relates to a battery device and an electrical device. Background Technology

[0002] Battery devices typically include a CCS (Cells Contact System) assembly to electrically connect multiple battery cells and collect and transmit information such as voltage and temperature. However, in related technologies, the CCS assembly occupies a large space and has low internal space utilization, affecting the space utilization and structural compactness of the battery device. Utility Model Content

[0003] This application provides a battery device that aims to solve the problems of large space occupation and low internal space utilization of CCS components, which affect the space utilization and structural compactness of the battery device.

[0004] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows:

[0005] In a first aspect, a battery device is provided, comprising:

[0006] A single battery cell has electrode terminals;

[0007] The sampling assembly includes an isolator, a limiting bracket, and multiple sampling lines. The isolator is disposed along a first direction on the side of the battery cell with electrode terminals. Each sampling line is disposed on the side of the isolator opposite to the battery cell along the first direction. One end of each sampling line is electrically connected to the electrode terminals. The limiting bracket is fixed to the isolator and forms a limiting groove between the bracket and the isolator along the first direction. The multiple sampling lines pass through the limiting groove.

[0008] In the battery device provided in this application embodiment, the sampling component, through a limiting bracket fixed to the separator, forms a limiting groove with the separator along a first direction. This allows multiple sampling lines passing through the limiting groove to be laid out side-by-side, layered, or staggered, eliminating the need for cable ties to bundle them together and preventing excessive clustering of multiple sampling lines in local areas. Compared to the problem of excessive clustering height of sampling lines caused by cable ties, in this embodiment, the laying height of multiple sampling lines along the first direction in the limiting groove is lower and less than the groove depth. Based on this, it is beneficial to reduce the "groove depth" and "height of the sampling component at the limiting bracket" along the first direction, thereby reducing the overall space occupied by the sampling component. Furthermore, the orderly, extended, and uniform laying of multiple sampling lines in the limiting groove can fully utilize the space between the limiting bracket and the separator, as well as the wiring space on the separator, reducing idle space and thus improving the overall space utilization rate of the sampling component. Therefore, by reducing the overall space occupied by the sampling component and improving its overall space utilization, the space utilization and structural compactness of the battery device can be optimized. Furthermore, the sampling line is constrained between the limiting bracket and the separator, and does not protrude from the side of the limiting bracket facing away from the separator. This allows the limiting bracket to effectively protect the sampling line, reducing the risk of wear and damage caused by pressure from the battery device's cover. This improves the reliability and lifespan of both the sampling line and the battery device.

[0009] In some embodiments, at least at the location of the corresponding limiting bracket, multiple sampling lines are arranged along a second direction, which intersects with the first direction.

[0010] By adopting the above scheme, at least at the position of the corresponding limiting bracket, multiple sampling lines can be laid out in one or more layers along the second direction due to the constraint of the limiting bracket. This allows for the reasonable use of the space between the limiting bracket and the isolation component, reduces the excessive convergence of multiple sampling lines in local areas, and helps to reduce the height of the sampling component at the setting point of the limiting bracket along the first direction, thereby reducing the overall space occupied by the sampling component. This can help improve the space utilization and structural compactness of the sampling component and battery device.

[0011] In some embodiments, at least one end of the limiting bracket is connected to the isolation member along the second direction, and the second direction intersects with the first direction.

[0012] By adopting the above scheme, at least one end of the limiting bracket along the second direction is connected to the isolator, which effectively fixes the limiting bracket and restricts its displacement or loosening along the second direction. This optimizes the connection convenience and stability between the limiting bracket and the isolator, and improves the structural reliability of the sampling assembly. Furthermore, the middle of the limiting bracket along the second direction is suspended relative to the isolator, allowing the limiting bracket and the isolator to form a hollow limiting groove. This maintains and optimizes the limiting groove's constraint effect on the sampling lines, facilitating the parallel, layered, or staggered arrangement of multiple sampling lines within the limiting groove along the second direction. It also allows for the rational utilization of the space between the limiting bracket and the isolator, as well as the wiring space on the isolator, thus contributing to improved space utilization and structural compactness of the sampling assembly and battery device.

[0013] In some embodiments, the isolation member includes a wiring portion, the limiting bracket includes a limiting portion extending along a second direction, a limiting groove is disposed between the limiting portion and the wiring portion, and along the second direction, the two ends of the limiting portion are respectively opposite to the two sides of the wiring portion, and the second direction intersects with the first direction.

[0014] By adopting the above scheme, the limiting bracket, with a limiting part extending along the second direction, spans across the side of the wiring section facing away from the battery cell; and through the relative arrangement of the two ends of the limiting part with the sides of the wiring section, the limiting part completely covers the lateral range of the wiring section along the second direction. Based on this, a regular limiting groove can be stably formed between the limiting part and the wiring section, and the limiting part extending along the second direction can reliably limit the multiple sampling lines in the limiting groove, thereby effectively limiting the "offset of the sampling line along the first direction" and the "exit of the sampling line from both sides of the limiting groove", effectively improving the limiting groove's limiting constraint effect on the sampling lines; and providing sufficient space for the regular arrangement of multiple sampling lines along the second direction, making full use of the lateral space of the wiring section along the second direction, reducing the local convergence of sampling lines, optimizing the structural design of the acquisition component, and improving the structural compactness and space utilization of the acquisition component.

[0015] In some embodiments, the limiting bracket includes a connecting portion formed by bending an end of the limiting portion along a second direction and connecting it to a corresponding side of the wiring portion.

[0016] By adopting the above scheme, the limiting bracket can achieve a reliable connection with the corresponding side of the wiring part through the connecting part formed by bending the end of the limiting part along the second direction. Based on this, the structure of the limiting bracket can be simplified and optimized, the structural strength and structural reliability of the limiting bracket itself can be improved, the connection stability between the limiting bracket and the wiring part can be enhanced, and structural support can be provided for the limiting groove to limit the sampling line.

[0017] In some embodiments, the limiting bracket includes an abutment portion formed by bending from the end of the connecting portion away from the limiting portion, and limiting abutment against the corresponding side of the wiring portion.

[0018] By adopting the above solution, the limiting bracket can form a limiting abutment with the corresponding side of the wiring part through the abutment formed by bending from the end of the connecting part away from the limiting part. Based on this, the structure of the limiting bracket can be optimized, providing reliable lateral positioning and support for the limiting bracket. It can effectively constrain the plane offset, swaying or tilting of the limiting bracket relative to the wiring part, thereby improving the connection positioning accuracy, connection stability and connection reliability between the limiting bracket and the wiring part, and improving the overall structural stability of the sampling component.

[0019] In some embodiments, the connecting part is provided with a first bayonet, and the wiring part is provided with a first buckle at the position corresponding to the first bayonet. The first buckle is inserted into and engaged with the first bayonet.

[0020] By adopting the above solution, and by having the first buckle of the wiring part pass through and engage with the first slot of the connecting part, the buckle connection between the corresponding sides of the connecting part and the wiring part can be quickly, conveniently, and reliably achieved. This eliminates the need for additional fasteners such as bolts or pins, simplifying the connection structure and method between the limiting bracket and the wiring part, and improving the convenience and reliability of the connection. Furthermore, compared to the solution of "the connecting part having a first buckle and the wiring part having a first slot," the first buckle of the wiring part in this embodiment can effectively pull on the connecting part, stably limiting the shaking or detachment of the connecting part relative to the wiring part in the first direction. This improves the connection stability between the limiting bracket and the wiring part, helps stabilize and reduce the "height of the limiting bracket relative to the wiring part," the "height of the sampling component at the location of the limiting bracket," and the "overall space occupied by the sampling component," and optimizes the stable limiting constraint effect of the limiting groove on the sampling line.

[0021] In some embodiments, the separator has a receiving groove on the side facing away from the battery cell along the first direction, and the sampling line passes through the receiving groove. Along the first direction, the depth of the limiting groove is greater than or equal to the depth of the receiving groove.

[0022] By adopting the above scheme, the sampling line can be arranged in a recessed manner using the receiving groove on the isolator, so that the portion of the sampling line within the receiving groove is lower than the surface of the isolator. Based on this, the sampling line can be constrained along the second direction mainly through the receiving groove, and constrained along the first direction in conjunction with the limiting bracket and limiting groove, thus achieving dual constraint of the sampling line in the first and second directions. This effectively reduces the overall arrangement height of the sampling line, thereby reducing the space occupied by the sampling component, improving structural compactness and space utilization; furthermore, it effectively reduces the occurrence of sampling line deviation, local convergence, or outward protrusion, improves wiring neatness, enhances the protection effect on the sampling line, and thus improves the reliability and service life of the sampling line and sampling component.

[0023] In some embodiments, the limiting bracket is detachably connected to the isolation member.

[0024] By adopting the above scheme, it is not only convenient for the laying, threading and subsequent inspection and maintenance of the sampling line, but also enables the rapid assembly and disassembly of the limit bracket and the isolation component. It is also convenient for the individual replacement and recycling of the limit bracket, thereby improving the assembly convenience, assembly efficiency and maintainability of the sampling component, and reducing the use and maintenance cost of the sampling component.

[0025] In some embodiments, the limiting bracket is snapped onto the isolation member.

[0026] By adopting the above solution, the reliable connection and quick assembly / disassembly of the limit bracket and the isolation component can be achieved without the need for additional fasteners such as bolts and pins. This simplifies and optimizes the detachable connection method of the limit bracket and the isolation component, simplifies and optimizes the overall structure of the sampling component, improves the assembly convenience, assembly efficiency and maintainability of the sampling component, and reduces assembly and maintenance costs.

[0027] In some embodiments, the wiring section includes a first wiring section and a second wiring section spaced apart from each other, and the isolator includes a trace section connected between the first wiring section and the second wiring section, and at least one sampling line is routed through the trace section between the first wiring section and the second wiring section.

[0028] By adopting the above scheme, the sampling line laying and electrical connection requirements of multiple regions and multiple electrode terminals can be met through the relatively spaced first and second wiring sections, avoiding the problem of wiring congestion in a single wiring section. Furthermore, the wiring section connecting the first and second wiring sections provides a regular cross-region turning routing channel for the sampling lines, enabling orderly turning wiring between the first and second wiring sections. Based on this, the structural design of the isolator can be simplified and optimized, the wiring layout of the sampling lines on the isolator can be optimized, the wiring regularity can be improved, and the risk of tangling and clustering of sampling lines due to cross-region wiring can be reduced. Moreover, the wiring space of the isolator can be fully utilized, reducing idle space and thus improving the space utilization and structural compactness of the sampling component.

[0029] In some embodiments, the sampling component includes a first connector corresponding to a first wiring portion and a second connector corresponding to a second wiring portion, wherein a sampling line extending from the end of the first wiring portion is electrically connected to the first connector and a sampling line extending from the end of the second wiring portion is electrically connected to the second connector.

[0030] By adopting the above solution, and by setting up first and second connectors corresponding to the first and second wiring sections respectively, a large number of sampling lines can be distributed and aggregated to meet the pin connection requirements of a large number of sampling lines. Furthermore, by utilizing the pre-defined routing channels formed by the first and second wiring sections and the routing section, the sampling lines can complete path planning, turning, and grouping in advance on the isolator. This ensures that the sampling lines corresponding to the first connector are uniformly organized so that they exit from the end of the first wiring section and are electrically connected to the first connector, and the sampling lines corresponding to the second connector are uniformly organized so that they exit from the end of the second wiring section and are electrically connected to the second connector. This achieves orderly routing at the end of the isolator, effectively avoiding the problems of scattered, crossed, and tangled sampling lines. It also effectively reduces assembly difficulty and shortens assembly time, structurally reduces the risk of incorrectly inserting sampling lines into connectors, and improves the assembly efficiency, signal acquisition stability, structural reliability, and operational reliability of the sampling component.

[0031] In some embodiments, a first groove is provided on the side of the first wiring portion facing away from the battery cell, a second groove is provided on the side of the second wiring portion facing away from the battery cell, and a third groove is provided on the side of the wiring portion facing away from the battery cell. The third groove is connected to the first groove through a first hole and to the second groove through a second hole. At least one sampling line passes through the first groove, the first hole, the third groove, the second hole, and the second groove.

[0032] By adopting the above scheme, a continuous sunken wiring channel can be formed through the first slot, first hole, third slot, second hole, and second slot. This allows the sampling line to be laid out continuously and neatly in a sunken manner between the first wiring section, the wiring section, and the second wiring section. This reduces the overall wiring height, makes full use of wiring space, and improves the structural compactness and space utilization of the sampling component. Furthermore, combined with the limiting bracket and the multiple limiting constraints on the sampling line by the first and second hole walls, the sampling line can be laid out neatly and orderly throughout, significantly reducing the phenomena of scattering, crossing, and tangling of the sampling line, and improving the wiring reliability and protection effect of the sampling line.

[0033] In some embodiments, the sampling assembly includes a busbar disposed on the side of the isolator facing away from the battery cell along a first direction and snap-fitted to the isolator. The busbar is configured to electrically connect the electrode terminals of two adjacent battery cells, and the sampling line is electrically connected to the busbar to be electrically connected to the electrode terminals.

[0034] By adopting the above solution, the busbar and isolator are set as snap-fit ​​connections, which can replace the traditional hot riveting connection method. This helps to reduce the process defect rate, reduce working time, speed up the production cycle, improve production efficiency and finished product qualification rate, simplify the assembly process, reduce costs, improve the connection reliability between the busbar and isolator, and facilitate the sampling line to achieve a stable and reliable electrical connection with the electrode terminals through the busbar.

[0035] In some embodiments, the isolation member includes a support portion that supports the busbar, the busbar is provided with a second slot, and the support portion is provided with a second buckle at a position corresponding to the second slot, the second buckle being inserted into and engaged with the second slot.

[0036] By adopting the above solution, the second bayonet can be easily and quickly processed on the busbar, and the second buckle can be easily and quickly formed at the position of the second bayonet on the support part. The second buckle can be quickly inserted and engaged in the second bayonet, so as to quickly, conveniently and reliably realize the buckle connection between the busbar and the isolator without the need for additional fasteners such as bolts and pins. This simplifies the structure and assembly process, improves processing efficiency and assembly efficiency, enhances the connection convenience, connection stability and connection reliability between the busbar and the isolator, and maintains the reliability of the electrical connection between the sampling line, the busbar, and the electrode terminals.

[0037] Secondly, an electrical device is provided, including the battery device provided in the embodiments of this application.

[0038] By adopting the above solution, the electrical device can improve its space utilization, structural compactness, reliability, and service life by using the battery device provided in the embodiments of this application. Attached Figure Description

[0039] To clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0041] Figure 2 This is an exploded view of a battery device provided in some embodiments of this application;

[0042] Figure 3 A front view of a sampling component provided in some embodiments of this application;

[0043] Figure 4 for Figure 3 A magnified view of area A is provided.

[0044] Figure 5 A partially exploded view of the isolator, sampling line, and limiting bracket provided in some embodiments of this application;

[0045] Figure 6 This is a partial structural diagram of the isolation element and sampling line provided in some embodiments of this application;

[0046] Figure 7 This is a partially exploded view of the support and busbar provided in some embodiments of this application.

[0047] The following are the labeling elements in the figure:

[0048] 1-Battery unit, 2-Controller, 3-Motor, 10-Battery cell assembly, 11-Battery cell, 111-Electrode terminal, 20-Casing, 21-First casing, 22-Second casing, 30-Sampling assembly, 31-Isolator, 311-Wiring section, 3111-First latch, 311a-First wiring section, 311b-Second wiring section, 312-Wire routing section, 313-Receiving slot, 313a-First slot, 313b- Second slot, 313c - third slot, 314 - first hole, 315 - second hole, 316 - support part, 3161 - second buckle, 32 - sampling line, 33 - limiting bracket, 331 - limiting slot, 332 - limiting part, 333 - connecting part, 3331 - first bayonet, 334 - abutting part, 34 - first connector, 35 - second connector, 36 - busbar, 361 - second bayonet, z - first direction, x - second direction. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clear, the application will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application. Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions. Unless otherwise specified, all technical features and optional technical features of this application can be combined to form new technical solutions.

[0050] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 this application according to the specific circumstances.

[0053] Battery devices typically include a CCS (Cells Contact System) assembly, which is used to electrically connect multiple battery cells in the device and to collect and transmit information such as voltage and temperature.

[0054] In some cases, CCS modules include an isolator, sampling lines, and cable ties. The isolator has a receiving groove on the side facing away from the individual cells, and the sampling lines pass through the receiving groove and are secured to the isolator by cable ties. However, when there are a large number of sampling lines, the cable ties tend to concentrate multiple sampling lines on one side of the receiving groove along the groove width, resulting in an excessively high concentration height of the sampling lines in the groove depth direction. If the groove depth is increased to accommodate the concentration height of the sampling lines, the height of the isolator in the groove depth direction will increase, thereby increasing the overall space occupied by the CCS module, resulting in low space utilization and poor structural compactness of the battery device. If the groove depth is not increased, the concentrated sampling lines will protrude from the groove opening, making the protruding parts of the sampling lines susceptible to wear and damage from the pressure of the battery device's cover, resulting in poor reliability and service life of the sampling lines and the battery device. Furthermore, the concentration of multiple sampling lines on one side of the receiving tank along the width of the tank will leave the space on the other side of the receiving tank unused, resulting in low space utilization of the receiving tank, low internal space utilization of the CCS module, low space utilization of the battery device, and poor structural compactness.

[0055] Therefore, some embodiments of this application provide a battery device in which the sampling component, through a limiting bracket fixed to the separator, forms a limiting groove with the separator along a first direction. This allows multiple sampling lines passing through the limiting groove to be laid out side-by-side, layered, or staggered, without relying on cable ties for centralized binding, thus avoiding excessive convergence of multiple sampling lines in local areas. Compared to the problem of excessive convergence of sampling lines caused by cable ties, in this embodiment, the laying height of multiple sampling lines in the limiting groove along the first direction is lower and less than the groove depth. Based on this, it is beneficial to reduce the "groove depth" and "height of the sampling component at the limiting bracket" along the first direction, thereby reducing the overall space occupied by the sampling component. Furthermore, the orderly, extended, and uniform laying of multiple sampling lines in the limiting groove can fully utilize the space between the limiting bracket and the separator, as well as the wiring space on the separator, reducing idle space and thus improving the overall space utilization rate of the sampling component. Therefore, by reducing the overall space occupied by the sampling component and improving its overall space utilization, the space utilization and structural compactness of the battery device can be optimized. Furthermore, the sampling line is constrained between the limiting bracket and the separator, and does not protrude from the side of the limiting bracket facing away from the separator. This allows the limiting bracket to effectively protect the sampling line, reducing the risk of wear and damage caused by pressure from the battery device's cover. This improves the reliability and lifespan of both the sampling line and the battery device.

[0056] The battery devices disclosed in this application can be used in electrical devices that use the battery device as a power source, or in various energy storage systems that use the battery device as an energy storage element. Electrical devices can be, but are not limited to, vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric vehicles, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric boat toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.

[0057] To illustrate the technical solution provided in this application, the following detailed description is provided in conjunction with specific drawings and embodiments, taking "an electrical device as a vehicle" as an example.

[0058] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle provided in some embodiments of this application. The vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 1 is installed inside the vehicle, and the battery device 1 can be located at the bottom, front, or rear of the vehicle. The battery device 1 is used to supply power to the vehicle; for example, the battery device 1 can serve as the vehicle's operating power source for the vehicle's electrical system, such as for the power needs of starting, navigation, and driving. The vehicle may also include a controller 2 and a motor 3, with the controller 2 controlling the battery device 1 to supply power to the motor 3.

[0059] In some embodiments of this application, the battery device 1 can not only serve as the operating power source for the vehicle, but also as the driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0060] Please see Figure 2 , Figure 2This is an exploded view of a battery device 1 provided in some embodiments of this application. The battery device 1 may include one or more battery cell assemblies 10 for providing voltage and capacity. Each battery cell assembly 10 may include multiple battery cells 11, which are connected in series, parallel, or mixed connection via a busbar. Mixed connection refers to a configuration involving both series and parallel connections. Each battery cell 11 may be a rechargeable battery, meaning it can be recharged after discharge to activate its active materials and continue to be used. The battery cell 11 may be a lithium-ion battery cell, sodium-ion battery cell, sodium-lithium-ion battery cell, lithium metal battery cell, sodium metal battery cell, lithium-sulfur battery cell, magnesium-ion battery cell, nickel-metal hydride battery cell, nickel-cadmium battery cell, lead-acid battery cell, etc. The battery cell 11 may be cylindrical, flat, cuboid, or other shapes. The battery cell 11 may be packaged in different ways to form cylindrical, square, or pouch battery cells, etc.

[0061] In some embodiments, the battery cell assembly 10 is typically formed by arranging a plurality of battery cells 11. As an example, the battery cell assembly 10 may be a battery module, which is formed by arranging and fixing a plurality of battery cells 11 into a single module. As an example, a battery module may be formed by bundling a plurality of battery cells 11 together with cable ties.

[0062] In some embodiments, the battery device 1 may be a battery pack, which includes a housing 20 and one or more battery cell assemblies 10, the battery cell assemblies 10 being housed within the housing 20. The housing 20 provides storage space for components such as the battery cell assemblies 10, and can provide dustproof, waterproof, and protective protection for the components housed within it, reducing the impact of external liquids or other foreign matter on the effectiveness and performance of the battery cell assemblies 10 and other components, thus effectively extending the service life of the battery device 1. The housing 20 can be of various shapes, such as a cuboid or cylinder. The housing 20 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, or plastic.

[0063] As an example, the battery cell assembly 10 can be a battery module, and the battery cell assembly 10 can be housed in the housing 20 by fixing the battery module in the housing 20.

[0064] As an example, the battery cell assembly 10 can also be housed in the housing 20 by directly fixing multiple battery cells 11 to the housing 20.

[0065] As an example, the housing 20 may include a first housing 21 and a second housing 22. The first housing 21 and the second housing 22 are fastened together, forming a closed space inside the housing 20 to house the battery cell assembly 10. Here, "closed" refers to covering or shutting off; it can be sealed or unsealed. As an example, the second housing 22 may be a hollow structure with an opening at one end, and the first housing 21 may be a top cover or a bottom plate, with the first housing 21 covering the open side of the second housing 22. As an example, both the first housing 21 and the second housing 22 may be hollow structures with an opening on one side, with the open side of the first housing 21 covering the open side of the second housing 22.

[0066] As an example, the housing 20 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 20 forms an enclosed space to house the battery cell assembly 10.

[0067] In some embodiments, the housing 20 may be part of the vehicle's chassis structure. For example, a portion of the housing 20 may be at least a portion of the vehicle's floor, or a portion of the housing 20 may be at least a portion of the vehicle's crossbeams and longitudinal beams.

[0068] In some embodiments, the battery device 1 may also include other structures. For example, the battery device 1 may also include a busbar for connecting multiple battery cells 11 to achieve electrical connection between the multiple battery cells 11.

[0069] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 Some embodiments of this application provide a battery device 1, including a battery cell 11 and a sampling assembly 30. The battery cell 11 has electrode terminals 111. The sampling assembly 30 includes an isolator 31, a limiting bracket 33, and multiple sampling lines 32. The isolator 31 is disposed along a first direction z on the side of the battery cell 11 with electrode terminals 111. Each sampling line 32 is disposed on the side of the isolator 31 facing away from the battery cell 11 along the first direction z. One end of each sampling line 32 is electrically connected to the electrode terminals 111. The limiting bracket 33 is fixed to the isolator 31 and forms a limiting groove 331 between the bracket and the isolator 31 along the first direction z. The multiple sampling lines 32 pass through the limiting groove 331.

[0070] The battery cell 11 is the smallest unit for storing and outputting electrical energy. In the battery device 1, one or more battery cells 11 can be provided. If at least two battery cells 11 are provided, multiple battery cells 11 can be arranged as needed, and they can be connected in series, parallel, or a combination thereof; a combination thereof means both series and parallel connections. The battery cell 11 can be a rechargeable battery, meaning a battery cell 11 that can be recharged after discharge to activate its active materials and continue to be used. The battery cell 11 can be a lithium-ion battery cell, sodium-ion battery cell, sodium-lithium-ion battery cell, lithium metal battery cell, sodium metal battery cell, lithium-sulfur battery cell, magnesium-ion battery cell, nickel-metal hydride battery cell, nickel-cadmium battery cell, lead-acid battery cell, etc. The battery cell 11 can be cylindrical, flat, cuboid, or other shapes. The battery cell 11 can be packaged in different ways to form cylindrical, square, or pouch battery cells, etc. The battery cell 11 has an electrode terminal 111, which is a component of the battery cell 11 used for outputting or inputting electrical energy. The electrode terminal 111 can also be called a pole.

[0071] The sampling component 30, also known as the CCS (Cells Contact System) component, is used to realize the electrical connection of multiple battery cells 11 in the battery device 1, and to complete the acquisition and transmission of information such as voltage and temperature.

[0072] The sampling assembly 30 includes an isolator 31, a sampling line 32, and a limiting bracket 33. Along a first direction z, the isolator 31 is disposed on the side of the battery cell 11 having electrode terminals 111. The isolator 31 may be, but is not limited to, plate-shaped. The isolator 31 serves at least to provide a mounting base for the sampling line 32 to define the general direction of the sampling line 32. In some embodiments, the isolator 31 is an insulating member, such that it can serve as an insulating support structure to achieve electrical isolation and reduce the risk of short circuits. As an example, the isolator 31 may be a plastic structural member; in some embodiments, the isolator 31 may be a thermoformed part, a product manufactured using a thermoforming process. This configuration allows for a shorter mold opening cycle, higher production yield, and higher production efficiency, thereby helping to reduce the production cost of the sampling assembly 30; in other embodiments, the isolator 31 may be an injection-molded part, a product manufactured using an injection molding process.

[0073] Multiple sampling lines 32 can be provided, and the functions of the multiple sampling lines 32 can be the same or different. For example, the sampling lines 32 can be, but are not limited to, low-voltage sampling lines, high-voltage sampling lines, temperature sampling lines, etc. Along the first direction z, each sampling line 32 is laid on the side of the isolator 31 facing away from the battery cell 11, and each sampling line 32 can be flexibly routed as needed. That is, on the side of the isolator 31 facing away from the battery cell 11, the sampling line 32 can be extended in a straight line, a curve, or a broken line. One end of each sampling line 32 can be directly connected to the electrode terminal 111 of the battery cell 11 by welding to form an electrical connection, or indirectly connected by a busbar 36 (such as a copper busbar, aluminum busbar, etc.) to form an electrical connection, thereby facilitating the sampling lines 32 to collect and transmit information such as voltage and current of the battery cell 11; wherein, one battery cell 11 can correspond to one or more sampling lines 32. The sampling line 32 can be, but is not limited to, cylindrical sampling lines, flat sampling lines, rectangular sampling lines, etc., to adapt to different wiring spaces and electrical performance requirements.

[0074] One or more limiting brackets 33 can be provided, and the limiting brackets 33 are located on the side of the separator 31 facing away from the battery cell 11. The limiting brackets 33 are connected and fixed to the separator 31, either at the end of the limiting bracket 33 or at the middle of the limiting bracket 33. The connection between the limiting brackets 33 and the separator 31 can be a fixed connection or a detachable connection. Along the first direction z, the limiting brackets 33 and the separator 31 enclose a limiting groove 331. Multiple sampling lines 32 are passed through the limiting groove 331. In the limiting groove 331, the multiple sampling lines 32 can be laid flat in one or more layers, that is, the multiple sampling lines 32 are laid side by side, layered or staggered in the limiting groove 331. The multiple sampling lines 32 do not need to rely on cable ties for centralized binding, thus avoiding excessive convergence of the multiple sampling lines 32 in local areas. Furthermore, the limiting bracket 33 and the isolator 31 can limit and constrain the sampling line 32 within them, thereby restricting the sampling line 32 from arching, protruding, or displacing along the first direction z, thus reducing the risk of the sampling line 32 wandering, shifting, or wearing during subsequent transportation or vibration conditions. In some embodiments, multiple limiting brackets 33 can be provided at intervals along the extension path of the sampling line 32 to limit the sampling line 32 in segments at different positions, ensuring that the sampling line 32 can be stably constrained along the entire path and reducing local protrusions or loosening.

[0075] In summary, in the battery device 1 provided in this application embodiment, the sampling component 30, through a limiting bracket 33 fixed to the insulating member 31, forms a limiting groove 331 with the insulating member 31 along the first direction z. This allows multiple sampling lines 32 passing through the limiting groove 331 to be laid out side-by-side, layered, or staggered, without relying on cable ties for centralized binding, thus avoiding excessive aggregation of multiple sampling lines 32 in local areas. Compared to the problem of excessive aggregation height of sampling lines 32 caused by cable ties, in this embodiment, the laying height of multiple sampling lines 32 along the first direction z in the limiting groove 331 is lower and less than the groove depth of the limiting groove 331. Based on this, it is beneficial to correspondingly reduce the "groove depth of the limiting groove 331" and the "height of the sampling component 30 at the location of the limiting bracket 33" along the first direction z, thereby reducing the overall space occupied by the sampling component 30. Furthermore, the multiple sampling lines 32 are neatly, evenly, and spread out within the limiting groove 331, making full use of the space between the limiting bracket 33 and the separator 31, as well as the wiring space on the separator 31. This reduces idle space and improves the overall space utilization of the sampling assembly 30. Therefore, by reducing the overall space occupied by the sampling assembly 30 and improving its overall space utilization, the space utilization and structural compactness of the battery device 1 are optimized. In addition, the sampling lines 32 are constrained between the limiting bracket 33 and the separator 31 and do not protrude from the side of the limiting bracket 33 facing away from the separator 31. This allows the limiting bracket 33 to effectively protect the sampling lines 32, reducing the risk of wear and damage caused by pressure from the battery device 1's cover. This improves the reliability and service life of both the sampling lines 32 and the battery device 1.

[0076] In some examples, the sampling lines 32 gathered together along the first direction z by the cable ties are about 14 mm high. However, based on the configuration of this embodiment, if multiple sampling lines 32 are laid flat in one layer in the limiting groove 331, the laying height of multiple sampling lines 32 in the limiting groove 331 is only 1 mm to 2 mm. If multiple sampling lines 32 are laid flat in two layers in the limiting groove 331, the laying height of multiple sampling lines 32 in the limiting groove 331 is only 3 mm to 4 mm. Therefore, compared with the related technology of using cable ties to bind the sampling lines 32, in this embodiment, the height of the isolation member 31 along the first direction z and the height of the sampling component 30 along the first direction z can be reduced by about 10 mm, thereby optimizing space utilization and structural compactness.

[0077] Please see Figure 2 , Figure 4 , Figure 5 In some embodiments of this application, at least at the position of the corresponding limiting bracket 33, multiple sampling lines 32 are arranged along the second direction x, and the second direction x intersects the first direction z.

[0078] At least at the position corresponding to the limiting bracket 33, multiple sampling lines 32 can be laid out in one or more layers along the second direction x in the limiting groove 331. The second direction x intersects the first direction z; as an example, the second direction x can be perpendicular to the first direction z; as an example, the second direction x can be parallel to the width direction of the limiting groove 331.

[0079] By adopting the above scheme, at least at the position of the corresponding limiting bracket 33, multiple sampling lines 32 can be laid out in one or more layers along the second direction x due to the constraint of the limiting bracket 33. This can make reasonable use of the space between the limiting bracket 33 and the isolation member 31, reduce the excessive convergence of multiple sampling lines 32 in local areas, and help reduce the height of the sampling component 30 at the setting point of the limiting bracket 33 along the first direction z, thereby reducing the overall space occupied by the sampling component 30. This can help improve the space utilization and structural compactness of the sampling component 30 and the battery device 1.

[0080] Please see Figure 2 , Figure 4 , Figure 5 In some embodiments of this application, at least one end of the limiting bracket 33 is connected to the isolation member 31 along the second direction x, and the second direction x intersects with the first direction z.

[0081] like Figure 5 As shown, in some embodiments, the two ends of the limiting bracket 33 along the second direction x are respectively connected to the isolation member 31. In other embodiments, one end of the limiting bracket 33 along the second direction x is connected to the isolation member 31. The connection method can be a fixed connection or a detachable connection.

[0082] By adopting the above scheme, at least one end of the limiting bracket 33 along the second direction x is connected to the isolator 31, which can effectively fix the limiting bracket 33 and limit its displacement or loosening along the second direction x. This optimizes the connection convenience and stability between the limiting bracket 33 and the isolator 31, and improves the structural reliability of the sampling component 30. Furthermore, it allows the middle part of the limiting bracket 33 along the second direction x to be suspended relative to the isolator 31, and facilitates the formation of a hollow limiting groove 331 by the limiting bracket 33 and the isolator 31. This maintains and optimizes the limiting constraint effect of the limiting groove 331 on the sampling line 32, and allows multiple sampling lines 32 to be laid side-by-side, layered, or staggered along the second direction x within the limiting groove 331. It also allows for the rational utilization of the space between the limiting bracket 33 and the isolator 31, as well as the wiring space on the isolator 31, thus helping to improve the space utilization and structural compactness of the sampling component 30 and the battery device 1.

[0083] Please see Figure 2 , Figure 4 , Figure 5In some embodiments of this application, the isolation member 31 includes a wiring portion 311, the limiting bracket 33 includes a limiting portion 332 extending along the second direction x, the limiting groove 331 is disposed between the limiting portion 332 and the wiring portion 311, along the second direction x, the two ends of the limiting portion 332 are respectively opposite to the two sides of the wiring portion 311, and the second direction x intersects with the first direction z.

[0084] The isolation member 31 is provided with a wiring section 311, which is mainly used to provide a basic area for laying and arranging the sampling lines 32, so as to realize the orderly arrangement of the sampling lines 32 on the isolation member 31. The wiring section 311 can be extended in a straight line, extended in a curve, or extended in a broken line. As an example, the wiring section 311 can be extended in a straight line along a direction perpendicular to the second direction x.

[0085] The limiting bracket 33 includes a limiting part 332, which extends along the second direction x and spans the wiring part 311 on the side facing away from the battery cell 11. The limiting part 332 and the wiring part 311 enclose each other along the first direction z to form a limiting groove 331. The limiting part 332 and the wiring part 311 can limit and constrain the sampling line 32 passing through the limiting groove 331. The two ends of the limiting part 332 along the second direction x are respectively positioned opposite to the two sides of the wiring part 311 along the second direction x, meaning the extension length of the limiting groove 331 along the second direction x is adapted to the width of the wiring part 311 along the second direction x.

[0086] By adopting the above scheme, the limiting bracket 33 is straddling the side of the wiring section 311 facing away from the battery cell 11 by the limiting part 332 extending along the second direction x; and by the relative arrangement of the two ends of the limiting part 332 with the two sides of the wiring section 311, the limiting part 332 completely covers the lateral range of the wiring section 311 along the second direction x. Based on this, the limiting part 332 and the wiring part 311 can be stably enclosed to form a regular limiting groove 331, and the limiting part 332 extending along the second direction x can reliably limit the multiple sampling lines 32 in the limiting groove 331, thereby effectively limiting the "offset of the sampling line 32 along the first direction z" and the "exit of the sampling line 32 from both sides of the limiting groove 331", which can effectively improve the limiting constraint effect of the limiting groove 331 on the sampling line 32; and it can provide sufficient space for the regular arrangement of multiple sampling lines 32 along the second direction x, make full use of the lateral space of the wiring part 311 along the second direction x, reduce the local convergence of the sampling lines 32, optimize the structural design of the acquisition component, and improve the structural compactness and space utilization of the acquisition component.

[0087] Please see Figure 3 , Figure 4 , Figure 5In some embodiments of this application, the limiting bracket 33 includes a connecting portion 333, which is formed by bending from the end of the limiting portion 332 along the second direction x and connected to the corresponding side of the wiring portion 311.

[0088] like Figure 5 As shown, in some embodiments, the limiting bracket 33 includes two connecting portions 333, which are respectively connected to both ends of the limiting portion 332 along the second direction x, i.e., formed by bending from both ends of the limiting portion 332 along the second direction x. The two connecting portions 333 are respectively connected to two sides of the wiring portion 311 along the second direction x. In other embodiments, the limiting bracket 33 includes one connecting portion 333, which is connected to one end of the limiting portion 332 along the second direction x, i.e., formed by bending from one end of the limiting portion 332 along the second direction x. The connecting portion 333 is connected to one side of the wiring portion 311 along the second direction x. The connecting portion 333 extends from the end of the limiting portion 332 along the second direction x towards the wiring portion 311. As an example, the included angle α between the connecting portion 333 and the limiting portion 332 can be an obtuse angle. The connection between the connecting part 333 and the wiring part 311 is the connection between the limiting bracket 33 and the isolation member 31. The connection method can be a fixed connection or a detachable connection.

[0089] like Figure 5 As shown, in some embodiments, the limiting bracket 33 is a one-piece molded structure, that is, the connecting part 333 and the limiting part 332 are integrally connected. In other embodiments, the connecting part 333 and the limiting part 332 may be separately connected.

[0090] By adopting the above scheme, the limiting bracket 33 can achieve a reliable connection with the corresponding side of the wiring part 311 through the connecting part 333 formed by bending from the limiting part 332 along the second direction x end. Based on this, the structure of the limiting bracket 33 can be simplified and optimized, the structural strength and structural reliability of the limiting bracket 33 itself can be improved, the connection stability between the limiting bracket 33 and the wiring part 311 can be enhanced, and structural support can be provided for the limiting groove 331 to limit the sampling line 32.

[0091] Please see Figure 3 , Figure 4 , Figure 5 In some embodiments of this application, the limiting bracket 33 includes an abutment portion 334, which is formed by bending from the end of the connecting portion 333 away from the limiting portion 332 and is limited to abutting against the corresponding side of the wiring portion 311.

[0092] like Figure 5As shown, in some embodiments, the limiting bracket 33 includes two connecting portions 333 and two abutting portions 334. The two abutting portions 334 are respectively connected to the two connecting portions 333. The two abutting portions 334 are formed by bending from the ends of the two connecting portions 333 away from the limiting portion 332. The two abutting portions 334 are respectively limited and abut against the two sides of the wiring portion 311 along the second direction x. In other embodiments, the limiting bracket 33 includes one abutting portion 334, which is formed by bending from the end of the connecting portion 333 away from the limiting portion 332. The abutting portion 334 is limited and abuts against the corresponding side of the wiring portion 311. The abutting portion 334 is formed by bending from the end of the connecting portion 333 away from the limiting portion 332 towards the wiring portion 311. As an example, the included angle between the abutting portion 334 and the connecting portion 333 can be an obtuse angle. As an example, the extending direction of the abutting portion 334 can be parallel to the first direction z.

[0093] like Figure 5 As shown, in some embodiments, the limiting bracket 33 is a one-piece molded structure, that is, the abutment portion 334 and the connecting portion 333 are integrally connected. In other embodiments, the abutment portion 334 and the connecting portion 333 may be separately connected.

[0094] By adopting the above scheme, the limiting bracket 33 can form a limiting abutment with the corresponding side of the wiring part 311 through the abutment part 334 formed by bending from the end of the connecting part 333 away from the limiting part 332. Based on this, the structure of the limiting bracket 33 can be optimized, and reliable lateral positioning and support can be provided for the limiting bracket 33. It can effectively constrain the limiting bracket 33 from plane offset, shaking or tilting relative to the wiring part 311, thereby improving the connection positioning accuracy, connection stability and connection reliability between the limiting bracket 33 and the wiring part 311, and improving the overall structural stability of the sampling component 30.

[0095] Please see Figure 3 , Figure 4 , Figure 5 In some embodiments of this application, the connecting part 333 is provided with a first bayonet 3331, and the wiring part 311 is provided with a first buckle 3111 at the position corresponding to the first bayonet 3331. The first buckle 3111 passes through and engages with the first bayonet 3331.

[0096] By adopting the above solution, by having the first buckle 3111 of the wiring part 311 pass through and engage with the first slot 3331 of the connecting part 333, the buckle connection between the corresponding side of the connecting part 333 and the wiring part 311 can be achieved quickly, conveniently and reliably. There is no need to add additional fasteners such as bolts and pins, thereby simplifying the connection structure and connection method between the limiting bracket 33 and the wiring part 311, and improving the connection convenience and reliability between the limiting bracket 33 and the wiring part 311. Furthermore, compared to the scheme where "the connecting part 333 is provided with a first buckle 3111 and the wiring part 311 is provided with a first latch 3331", in this embodiment, the first buckle 3111 of the wiring part 311 can effectively pull the connecting part 333, which can stably limit the connecting part 333 from swaying or detaching relative to the wiring part 311 in the first direction z. This is beneficial to improving the connection stability between the limiting bracket 33 and the wiring part 311, and is beneficial to stabilizing and reducing "the height of the limiting bracket 33 relative to the wiring part 311", "the height of the sampling component 30 at the setting point of the limiting bracket 33" and "the overall space occupied by the sampling component 30", which is beneficial to optimizing the stable limiting constraint effect of the limiting groove 331 on the sampling line 32.

[0097] Of course, in other embodiments, the connecting part 333 is provided with a first buckle 3111, and the wiring part 311 is provided with a first slot 3331 at the position corresponding to the first buckle 3111. The first buckle 3111 passes through and engages with the first slot 3331.

[0098] Please see Figure 2 , Figure 4 , Figure 5 In some embodiments of this application, the isolation member 31 is provided with a receiving groove 313 on the side facing away from the battery cell 11 along the first direction z, and the sampling line 32 passes through the receiving groove 313. Along the first direction z, the groove depth of the limiting groove 331 is greater than or equal to the groove depth of the receiving groove 313.

[0099] Along the first direction z, the receiving groove 313 is formed on the side of the separator 31 facing away from the battery cell 11, that is, on the side of the separator 31 facing the limiting bracket 33. The receiving groove 313 can extend in a straight line, a curve, or a zigzag line. The sampling line 32 passes through the receiving groove 313, such that the portion of the sampling line 32 located in the receiving groove 313 is recessed relative to the surface of the separator 31 facing away from the battery cell 11. In some embodiments, along the first direction z, the sampling line 32 does not protrude from the opening of the receiving groove 313.

[0100] Since the limiting bracket 33 and the isolation member 31 enclose each other to form a limiting groove 331, at the position corresponding to the limiting bracket 33, the receiving groove 313 participates in forming at least a part of the limiting groove 331, such that the groove depth of the limiting groove 331 along the first direction z is greater than or equal to the groove depth of the receiving groove 313 along the first direction z.

[0101] By adopting the above scheme, the sampling line 32 can be arranged in a recessed manner using the receiving groove 313 on the isolation member 31, so that the portion of the sampling line 32 within the receiving groove 313 is lower than the surface of the isolation member 31. Based on this, the sampling line 32 can be constrained along the second direction x mainly through the receiving groove 313, and constrained along the first direction z in conjunction with the limiting bracket 33 and the limiting groove 331, thereby achieving dual constraint of the sampling line 32 in the first direction z and the second direction x. As a result, the overall arrangement height of the sampling line 32 can be effectively reduced, thereby reducing the space occupied by the sampling component 30 and improving the structural compactness and space utilization; furthermore, it can effectively reduce the occurrence of sampling line 32 shifting, local convergence, or outward protrusion, improve wiring neatness, and enhance the protection effect on the sampling line 32, thereby improving the reliability and service life of the sampling line 32 and the sampling component 30.

[0102] Please see Figure 3 , Figure 4 , Figure 5 In some embodiments of this application, the limiting bracket 33 is detachably connected to the isolation member 31.

[0103] The detachable connection can be made using, but is not limited to, snap-fit ​​connections, threaded connections, pin connections, etc. If multiple points of the limiting bracket 33 are detachably connected to the isolating member 31, for example, if both ends of the limiting bracket 33 are detachably connected to the isolating member 31 along the second direction x, the multiple connections can use the same or different detachable connection methods.

[0104] By adopting the above scheme, it is not only convenient for the laying, threading and subsequent inspection and maintenance of the sampling line 32, but also enables the rapid assembly and disassembly of the limit bracket 33 and the isolation component 31. It is also convenient for the individual replacement and recycling of the limit bracket 33, thereby improving the assembly convenience, assembly efficiency and maintainability of the sampling component 30, and reducing the use and maintenance cost of the sampling component 30.

[0105] Please see Figure 3 , Figure 4 , Figure 5 In some embodiments of this application, the limiting bracket 33 is snapped onto the isolation member 31.

[0106] That is, one of the limiting bracket 33 and the isolation member 31 is provided with a bayonet, and the other of the two is provided with a buckle. The buckle is inserted into and engaged in the corresponding bayonet to realize the detachable connection between the limiting bracket 33 and the isolation member 31.

[0107] By adopting the above solution, without the need for additional fasteners such as bolts and pins, a reliable connection and quick assembly / disassembly between the limit bracket 33 and the isolation component 31 can be achieved. This simplifies and optimizes the detachable connection method between the limit bracket 33 and the isolation component 31, simplifies and optimizes the overall structure of the sampling component 30, improves the assembly convenience, assembly efficiency and maintainability of the sampling component 30, and reduces assembly and maintenance costs.

[0108] Please see Figure 2 , Figure 4 , Figure 6 In some embodiments of this application, the wiring section 311 includes a first wiring section 311a and a second wiring section 311b spaced apart from each other, and the isolation member 31 includes a routing section 312 connected between the first wiring section 311a and the second wiring section 311b. At least one sampling line 32 is routed between the first wiring section 311a and the second wiring section 311b through the routing section 312.

[0109] The first wiring section 311a and the second wiring section 311b are two wiring sections 311 that are spaced apart from each other and arranged opposite each other. The wiring sections 311 are mainly used to provide a basic area for laying and arranging the sampling lines 32 to meet the electrical connection and signal acquisition requirements of multiple areas and multiple electrode terminals 111. The first wiring section 311a and the second wiring section 311b can be arranged parallel to each other or not parallel to each other. One or more limiting brackets 33 can be fixed on the first wiring section 311a as needed, and one or more limiting brackets 33 can be fixed on the second wiring section 311b as needed.

[0110] The wiring section 312 is connected between the first wiring section 311a and the second wiring section 311b. The wiring section 312 and the first wiring section 311a can be connected as one piece or separately. The wiring section 312 and the second wiring section 311b can be connected as one piece or separately. The wiring section 312 is used to provide a cross-regional wiring channel for the sampling line 32.

[0111] At least one sampling line 32 is routed between the first wiring section 311a and the second wiring section 311b via the wiring section 312, so that the sampling line 32 can be routed from the first wiring section 311a to the second wiring section 311b via the wiring section 312 as needed, and can also be routed from the second wiring section 311b to the first wiring section 311a via the wiring section 312 as needed.

[0112] By adopting the above solution, the sampling lines 32 of multiple regions and multiple electrode terminals 111 can be laid and electrically connected through the first wiring section 311a and the second wiring section 311b, which are spaced apart, thus avoiding the problem of congestion in a single wiring section 311. Furthermore, the wiring section 312 connecting the first wiring section 311a and the second wiring section 311b provides a regular cross-region turning routing channel for the sampling lines 32, enabling orderly turning routing of the sampling lines 32 between the first wiring section 311a and the second wiring section 311b. Based on this, the structural design of the isolator 31 can be simplified and optimized, the wiring layout of the sampling lines 32 on the isolator 31 can be optimized, the wiring regularity can be improved, and the risk of tangling and clustering of the sampling lines 32 due to cross-region wiring can be reduced. Moreover, the wiring space of the isolator 31 can be fully utilized, reducing idle space and thus improving the space utilization and structural compactness of the sampling assembly 30.

[0113] Please see Figure 2 , Figure 4 , Figure 6 In some embodiments of this application, the sampling component 30 includes a first connector 34 corresponding to the first wiring portion 311a and a second connector 35 corresponding to the second wiring portion 311b. A sampling line 32 extending from the end of the first wiring portion 311a is electrically connected to the first connector 34, and a sampling line 32 extending from the end of the second wiring portion 311b is electrically connected to the second connector 35.

[0114] In practical applications of the battery device 1, there are a large number of battery cells 11, and consequently, a large number of sampling lines 32 connected to them. One end of each sampling line 32 is electrically connected to the electrode terminal 111 of the battery cell 11, while the other end needs to be connected to a connector and then interfaced with the signal interface of the BMS (Battery Management System). However, a connector has a limited number of pins (e.g., a commonly used connector has 36 pins). When there are many sampling lines 32 and a large number of pins are required (e.g., 60 pins), a single connector cannot meet the requirements for connecting all the sampling lines 32. Therefore, this embodiment uses a first connector 34 and a second connector 35 to divide all the sampling lines 32 into two groups for distribution and aggregation, connecting them to the first connector 34 and the second connector 35 respectively. This effectively adapts to the centralized connection requirements of a large number of sampling lines 32.

[0115] In traditional assembly structures, because the sampling lines 32 are not pre-organized and zoned, different sampling lines 32 need to be grouped and transferred at the end of the sampling component 30. This easily leads to problems such as the sampling lines 32 being scattered, crossing, and tangled. This not only increases the assembly difficulty and prolongs the assembly time, but also easily results in the sampling lines 32 being inserted into the wrong connector, affecting the signal acquisition reliability and operational reliability of the battery device 1. To address this, this embodiment forms a preset wiring channel through the first wiring section 311a, the second wiring section 311b, and the wiring section 312 between them. This allows the sampling lines 32 to complete the turning, routing, and grouping in advance on the isolator 31. This ensures that the sampling lines 32 corresponding to the first connector 34 are uniformly organized and exit from the end of the first wiring section 311a, and the sampling lines 32 corresponding to the second connector 35 are uniformly organized and exit from the end of the second wiring section 311b. Therefore, the sampling line 32 has completed path planning and grouping before extending from the end of the isolator 31, and the sampling assembly 30 ends neatly and orderly. This can effectively avoid the problems of the sampling line 32 being scattered, crossing, or tangled, effectively reduce assembly difficulty and shorten assembly time, structurally reduce the risk of the sampling line 32 being inserted into the wrong connector, and improve the assembly accuracy and reliability of the sampling assembly 30.

[0116] The first connector 34 is disposed corresponding to the end of the first wiring portion 311a to optimize the positional layout of the first connector 34 and facilitate electrical connection between the first connector 34 and the sampling line 32 extending from the end of the first wiring portion 311a. The second connector 35 is disposed corresponding to the end of the second wiring portion 311b to optimize the positional layout of the second connector 35 and facilitate electrical connection between the second connector 35 and the sampling line 32 extending from the end of the second wiring portion 311b.

[0117] By adopting the above solution, and by setting the first connector 34 and the second connector 35 corresponding to the first wiring section 311a and the second wiring section 311b respectively, a large number of sampling lines 32 can be distributed and summarized to meet the pin connection requirements of a large number of sampling lines 32. Furthermore, by utilizing the pre-defined routing channel formed by the first wiring section 311a, the second wiring section 311b, and the routing section 312, the sampling lines 32 can complete path planning, turning, and grouping in advance on the isolator 31. This ensures that the sampling lines 32 corresponding to the first connector 34 are uniformly and neatly arranged to exit from the end of the first wiring section 311a and be electrically connected to the first connector 34, and that the sampling lines 32 corresponding to the second connector 35 are uniformly and neatly arranged to exit from the end of the second wiring section 311b and be electrically connected to the second connector 35. This achieves orderly routing at the end of the isolator 31, effectively avoiding the problems of scattered, crossed, and tangled sampling lines 32. It can effectively reduce assembly difficulty and shorten assembly time, structurally reduce the risk of incorrectly inserting sampling lines 32 into connectors, and improve the assembly efficiency, signal acquisition stability, structural reliability, and operational reliability of the sampling component 30.

[0118] Please see Figure 2 , Figure 4 , Figure 6 In some embodiments of this application, the first wiring portion 311a has a first groove 313a on the side facing away from the battery cell 11, the second wiring portion 311b has a second groove 313b on the side facing away from the battery cell 11, and the wiring portion 312 has a third groove 313c on the side facing away from the battery cell 11. The third groove 313c communicates with the first groove 313a through a first hole 314 and with the second groove 313b through a second hole 315. At least one sampling line 32 passes through the first groove 313a, the first hole 314, the third groove 313c, the second hole 315, and the second groove 313b.

[0119] The first slot 313a is located on the side of the first wiring section 311a facing away from the battery cell 11. The second slot 313b is located on the side of the second wiring section 311b facing away from the battery cell 11. The third slot 313c is located on the side of the wiring section 312 facing away from the battery cell 11. The first slot 313a, the second slot 313b, and the third slot 313c all correspond to the receiving slot 313 mentioned above. A first hole 314 is provided at the connection between the wiring section 312 and the first wiring section 311a. The first hole 314 connects the third slot 313c and the first slot 313a. The first hole 314 can be, but is not limited to, a rectangular hole, a circular hole, or other polygonal holes, etc. A second hole 315 is provided at the connection between the wiring section 312 and the second wiring section 311b. The second hole 315 connects the third slot 313c and the second slot 313b. The second hole 315 can be, but is not limited to, a rectangular hole, a circular hole, or other polygonal holes, etc.

[0120] The sampling line 32, which is routed between the first wiring section 311a and the second wiring section 311b via the wiring section 312, is sequentially passed through the first slot 313a, the first hole 314, the third slot 313c, the second hole 315, and the second slot 313b. The portion of the sampling line 32 located in the first slot 313a is constrained by a limiting bracket 33 fixed to the first wiring section 311a; the portion of the sampling line 32 located in the second slot 313b is constrained by a limiting bracket 33 fixed to the second wiring section 311b; and the portion of the sampling line 32 located in the third slot 313c is constrained by the combined limiting brackets of the first hole 314 and the second hole 315.

[0121] By adopting the above scheme, a continuous and through sunken wiring channel can be formed through the first slot 313a, the first hole 314, the third slot 313c, the second hole 315, and the second slot 313b. This allows the sampling line 32 to be continuously and neatly laid out in a sunken manner between the first wiring section 311a, the wiring section 312, and the second wiring section 311b. This reduces the overall wiring height, makes full use of the wiring space, and improves the structural compactness and space utilization of the sampling component 30. Furthermore, combined with the multiple limiting constraints on the sampling line 32 by the limiting bracket 33, the hole wall of the first hole 314, and the hole wall of the second hole 315, the sampling line 32 can be laid out neatly and orderly throughout, significantly reducing the phenomena of scattering, crossing, and tangling of the sampling line 32, and improving the wiring reliability and protection effect of the sampling line 32.

[0122] Of course, in other embodiments, the portion of the sampling line 32 located within the third groove 313c can also be limited and constrained by the limiting bracket 33 fixed to the wiring portion 312.

[0123] Please see Figure 2 , Figure 4 , Figure 7 In some embodiments of this application, the sampling component 30 includes a busbar 36, which is arranged on the side of the isolator 31 facing away from the battery cell 11 along the first direction z and is snap-connected to the isolator 31. The busbar 36 is configured to electrically connect the electrode terminals 111 of two adjacent battery cells 11, and the sampling line 32 is electrically connected to the busbar 36 to be electrically connected to the electrode terminals 111.

[0124] The busbar 36 is used to electrically connect to the electrode terminals 111 of two adjacent battery cells 11 to participate in the construction of electrical connections between multiple battery cells 11. The busbar 36 can be, but is not limited to, an aluminum busbar (also called an aluminum bar), a copper busbar (also called a copper bar), etc. The number of busbars 36 can be determined as needed according to the number of battery cells 11 in the battery device 1, and the arrangement of the busbars 36 on the separator plate can also be set as needed according to the arrangement of the battery cells 11.

[0125] Along the first direction z, the busbar 36 is arranged on the side of the separator 31 facing away from the battery cell 11. The busbar 36 is snap-fitted to the separator 31 so that the busbar 36 is fixed relative to the separator 31. Since the battery cell 11 has a housing, which is generally made of conductive metal, and the electrode terminals 111 of the battery cell 11 protrude from the housing, when the separator 31 is an insulating component, by arranging the busbar 36 on the side of the separator 31 facing away from the battery cell 11 along the first direction z, when the busbar 36 is electrically connected to the electrode terminals 111, the separator 31 can effectively separate the busbar 36 from the housing of the battery cell 11, thereby reducing the risk of short circuit in the battery device 1.

[0126] The side of the busbar 36 facing the battery cell 11 is electrically connected to the electrode terminal 111, and one end of the sampling line 32 is electrically connected to the busbar 36. Based on this, the sampling line 32 can be indirectly electrically connected to the electrode terminal 111 via the busbar 36.

[0127] In some cases, the busbar 36 and the isolator 31 are connected by thermal riveting, but the thermal riveting process has a high defect rate and long processing time. To address this, the above-mentioned solution, by setting the busbar 36 and the isolator 31 as a snap-fit ​​connection, can replace the traditional thermal riveting connection method. This helps to reduce the process defect rate, shorten processing time, speed up production, improve production efficiency and finished product qualification rate, simplify the assembly process, reduce costs, and improve the connection reliability between the busbar 36 and the isolator 31. It also facilitates a stable and reliable electrical connection between the sampling line 32 and the electrode terminal 111 via the busbar 36.

[0128] Of course, in other embodiments, the busbar 36 and the isolator 31 can be connected and fixed by means of hot riveting or bolt fixing.

[0129] Please see Figure 2 , Figure 4 , Figure 7 In some embodiments of this application, the isolation member 31 includes a support portion 316 that supports the busbar 36. The busbar 36 is provided with a second slot 361. The support portion 316 is provided with a second buckle 3161 at the position corresponding to the second slot 361. The second buckle 3161 passes through and engages with the second slot 361.

[0130] By adopting the above solution, the second bayonet 361 can be easily and quickly processed in the busbar 36, and the second buckle 3161 can be easily and quickly formed at the position of the support 316 corresponding to the second bayonet 361. The second buckle 3161 can be quickly inserted and engaged in the second bayonet 361, so as to quickly, conveniently and reliably realize the buckle connection between the busbar 36 and the isolator 31 without the need for additional fasteners such as bolts and pins. This simplifies the structure and assembly process, improves processing efficiency and assembly efficiency, enhances the connection convenience, connection stability and connection reliability between the busbar 36 and the isolator 31, and maintains the reliability of the electrical connection between the sampling line 32, the busbar 36 and the electrode terminal 111.

[0131] Of course, in other embodiments, the busbar 36 is provided with a second buckle 3161, and the support part 316 is provided with a second buckle 361 at the position corresponding to the second buckle 361, and the second buckle 3161 passes through and engages with the second buckle 361.

[0132] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 In some embodiments of this application, the battery device 1 includes a battery cell 11 and a sampling assembly 30. The battery cell 11 has electrode terminals 111. The sampling assembly 30 includes an isolator 31, a limiting bracket 33, multiple sampling lines 32, a first connector 34, a second connector 35, and a busbar 36. The isolator 31 is disposed along a first direction z on the side of the battery cell 11 with electrode terminals 111. The isolator 31 includes a wiring portion 311, a routing portion 312, and a support portion 316. The wiring portion 311 includes a first wiring portion 311a and a second wiring portion 311b spaced apart from each other. The routing portion 312 is connected between the first wiring portion 311a and the second wiring portion 311b. The support portion 316 is connected to the opposite sides of the first wiring portion 311a and the second wiring portion 311b. The busbar 36 is arranged on the side of the support portion 316 facing away from the battery cell 11. The busbar 36 has a second slot 361, and the support portion 316 has a second buckle 3161 at the position corresponding to the second slot 361. The second buckle 3161 passes through and engages with the second slot 361, so that the busbar 36 is snapped into the support portion 316 of the isolator 31, and the busbar 36 is electrically connected to the electrode terminal 111. Each sampling line 32 is located on the side of the isolator 31 facing away from the battery cell 11, and one end of each sampling line 32 is electrically connected to the electrode terminal 111 through the busbar 36. The separator 31 has a receiving groove 313 on the side facing away from the battery cell 11. The receiving groove 313 includes a first groove 313a, a second groove 313b and a third groove 313c. The first groove 313a is located on the side of the first wiring portion 311a facing away from the battery cell 11. The second groove 313b is located on the side of the second wiring portion 311b facing away from the battery cell 11. The third groove 313c is located on the side of the wiring portion 312 facing away from the battery cell 11. The third groove 313c is connected to the first groove 313a through a first hole 314 and to the second groove 313b through a second hole 315.

[0133] Sampling lines 32 are threaded through receiving grooves 313. At least one sampling line 32 is threaded through the first groove 313a, the first hole 314, the third groove 313c, the second hole 315, and the second groove 313b, meaning at least one sampling line 32 is routed between the first wiring section 311a and the second wiring section 311b via the wiring portion 312. A first connector 34 is correspondingly provided with the first wiring section 311a, and the sampling line 32 extending from the end of the first wiring section 311a is electrically connected to the first connector 34. A second connector 35 is correspondingly provided with the second wiring section 311b, and the sampling line 32 extending from the end of the second wiring section 311b is electrically connected to the second connector 35. A limiting bracket 33 is fixed to the wiring section 311 of the isolator 31. The limiting bracket 33 includes a limiting portion 332, two connecting portions 333, and two abutting portions 334. The limiting portion 332 extends along the second direction x. Two connecting portions 333 are formed by bending from the two ends of the limiting portion 332 along the second direction x. The connecting portion 333 is provided with a first latch 3331. The wiring portion 311 is provided with a first buckle 3111 at the position corresponding to the first latch 3331. The first buckle 3111 passes through and engages with the first latch 3331, so that the connecting portion 333 and the corresponding side of the wiring portion 311 are connected by a buckle. Two abutting portions 334 are formed by bending from the ends of the two connecting portions 333 away from the limiting portion 332. The two abutting portions 334 are respectively limited and abut against the two sides of the wiring portion 311. A limiting groove 331 is formed between the limiting portion 332 and the wiring portion 311 along the first direction z. Along the first direction z, the groove depth of the limiting groove 331 is greater than or equal to the groove depth of the receiving groove 313. Multiple sampling lines 32 are inserted into the receiving groove 313 and the limiting groove 331, and are laid out in parallel, layered or staggered arrangement along the second direction x that intersects the first direction z.

[0134] By adopting the above solution, the overall height of the sampling line 32 can be effectively reduced, which is beneficial to reducing the overall space occupied by the sampling component 30. The space between the limiting bracket 33 and the isolation member 31, as well as the wiring space on the isolation member 31, can be fully utilized, reducing idle space and improving the overall space utilization rate of the sampling component 30. Thus, by reducing the overall space occupied by the sampling component 30 and improving its overall space utilization rate, the space utilization rate and structural compactness of the battery device 1 can be optimized. Furthermore, the sampling line 32 is constrained between the limiting bracket 33 and the isolation member 31 and does not protrude from the side of the limiting bracket 33 facing away from the isolation member 31. This allows the limiting bracket 33 to effectively protect the sampling line 32, thereby reducing the risk of wear and damage to the sampling line 32 due to pressure from the battery device 1's cover, and improving the reliability and service life of both the sampling line 32 and the battery device 1. Furthermore, by utilizing the pre-defined routing channel formed by the first wiring section 311a, the second wiring section 311b, and the routing section 312, the sampling lines 32 can complete path planning, turning, and grouping in advance on the isolator 31. This ensures that the sampling lines 32 corresponding to the first connector 34 are uniformly and neatly arranged to exit from the end of the first wiring section 311a and be electrically connected to the first connector 34, and that the sampling lines 32 corresponding to the second connector 35 are uniformly and neatly arranged to exit from the end of the second wiring section 311b and be electrically connected to the second connector 35. This achieves orderly routing at the end of the isolator 31, effectively avoiding the problems of scattered, crossed, and tangled sampling lines 32. It can effectively reduce assembly difficulty and shorten assembly time, structurally reduce the risk of incorrectly inserting sampling lines 32 into connectors, and improve the assembly efficiency, signal acquisition stability, structural reliability, and operational reliability of the sampling component 30. Furthermore, the busbar 36 and the isolator 31 are connected by a snap-fit ​​connection instead of the traditional hot riveting connection, which helps to reduce the process defect rate, reduce working time, speed up the production cycle, improve production efficiency and finished product qualification rate, simplify the assembly process, reduce costs, improve the connection reliability between the busbar 36 and the isolator 31, and facilitate the sampling line 32 to achieve a stable and reliable electrical connection with the electrode terminal 111 via the busbar 36.

[0135] Please see Figure 1 , Figure 2 Some embodiments of this application provide an electrical device, including the battery device 1 provided in the embodiments of this application.

[0136] By adopting the above solution, the electrical device can improve its space utilization, structural compactness, reliability, and service life by using the battery device 1 provided in the embodiments of this application.

[0137] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A battery device, characterized in that, include: A single battery cell has electrode terminals; The sampling assembly includes an isolator, a limiting bracket, and multiple sampling lines. The isolator is disposed along a first direction on the side of the battery cell with the electrode terminal. Each sampling line is disposed on the side of the isolator opposite to the battery cell along the first direction. One end of each sampling line is electrically connected to the electrode terminal. The limiting bracket is fixed to the isolator and forms a limiting groove between the bracket and the isolator along the first direction. The multiple sampling lines pass through the limiting groove.

2. The battery device as claimed in claim 1, characterized in that, At least at the position corresponding to the limiting bracket, multiple sampling lines are arranged along a second direction, which intersects with the first direction.

3. The battery device as claimed in claim 1, characterized in that, Along the second direction, at least one end of the limiting bracket is connected to the isolating member, and the second direction intersects the first direction.

4. The battery device as claimed in claim 1, characterized in that, The isolation component includes a wiring portion, and the limiting bracket includes a limiting portion extending along a second direction. The limiting groove is disposed between the limiting portion and the wiring portion. Along the second direction, the two ends of the limiting portion are respectively opposite to the two sides of the wiring portion. The second direction intersects with the first direction.

5. The battery device as claimed in claim 4, characterized in that, The limiting bracket includes a connecting portion, which is formed by bending from the end of the limiting portion along the second direction and connected to the corresponding side of the wiring portion.

6. The battery device as claimed in claim 5, characterized in that, The limiting bracket includes an abutment portion, which is formed by bending from the end of the connecting portion away from the limiting portion, and is limited to abutting against the corresponding side of the wiring portion.

7. The battery device as claimed in claim 5, characterized in that, The connecting part is provided with a first bayonet, and the wiring part is provided with a first buckle at the position corresponding to the first bayonet. The first buckle is inserted into and engaged with the first bayonet.

8. The battery device according to any one of claims 1-7, characterized in that, The separator has a receiving groove on the side facing away from the battery cell along the first direction, and the sampling line passes through the receiving groove. Along the first direction, the depth of the limiting groove is greater than or equal to the depth of the receiving groove.

9. The battery device according to any one of claims 1-7, characterized in that, The limiting bracket is detachably connected to the isolation component.

10. The battery device as claimed in claim 9, characterized in that, The limiting bracket is fastened to the isolation component.

11. The battery device according to any one of claims 4-7, characterized in that, The wiring section includes a first wiring section and a second wiring section spaced apart from each other, and the isolation member includes a routing section connecting the first wiring section and the second wiring section. At least one of the sampling lines is routed between the first wiring section and the second wiring section through the routing section.

12. The battery device as claimed in claim 11, characterized in that, The sampling component includes a first connector corresponding to the first wiring portion and a second connector corresponding to the second wiring portion. The sampling line extending from the end of the first wiring portion is electrically connected to the first connector, and the sampling line extending from the end of the second wiring portion is electrically connected to the second connector.

13. The battery device as claimed in claim 11, characterized in that, The first wiring portion has a first groove on the side facing away from the battery cell, the second wiring portion has a second groove on the side facing away from the battery cell, and the wiring portion has a third groove on the side facing away from the battery cell. The third groove is connected to the first groove through a first hole and to the second groove through a second hole. At least one of the sampling lines passes through the first groove, the first hole, the third groove, the second hole, and the second groove.

14. The battery device according to any one of claims 1-7, characterized in that, The sampling assembly includes a busbar disposed on the side of the isolator facing away from the battery cell along the first direction and snap-fitted to the isolator. The busbar is configured to electrically connect the electrode terminals of two adjacent battery cells. The sampling line is electrically connected to the busbar to be electrically connected to the electrode terminals.

15. The battery device as claimed in claim 14, characterized in that, The isolation component includes a support portion that supports the busbar. The busbar is provided with a second slot. The support portion is provided with a second buckle at a position corresponding to the second slot. The second buckle is inserted into and engaged with the second slot.

16. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1-15.

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