Battery device and electric device

Abstract

The application belongs to the technical field of batteries, and particularly relates to a battery device and a power utilization device. The battery device comprises a battery information management component, a battery monomer component, and a sampling component. The battery monomer component comprises a plurality of battery monomers. The sampling component comprises a connector, a signal transmission component, and a sampling component. The connector has a plurality of connection terminals arranged at intervals. The signal transmission component comprises a switching section and a transmission section. The switching section comprises a switching insulating main body and a plurality of switching lines arranged at intervals in the switching insulating main body. The transmission section comprises a transmission insulating main body and a plurality of transmission lines arranged at intervals in the transmission insulating main body. The transmission lines are electrically connected to the sampling component. One end of the plurality of switching lines is electrically connected to the plurality of connection terminals. The other end of the plurality of switching lines is electrically connected to one end of the plurality of transmission lines. The center distance of two adjacent switching lines at the end of the switching section close to the connector is greater than the center distance of two adjacent transmission lines, so that the size of the transmission section is small, and the waste of materials is reduced.

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] Energy conservation and emission reduction are key to sustainable development, which in turn promotes the adjustment of the energy structure and drives the development and application of battery technology. The key to the development of battery technology lies in electrochemical energy storage technology. Due to its advantages such as high energy density, good cycle capability, high operating voltage, environmental friendliness, and low self-discharge, it has been widely used in portable electronics, electric vehicles, and energy storage systems.

[0003] During the operation of battery devices, sampling components are typically used to collect information from individual battery cells to monitor the device's operational status. However, some sampling components in related technologies suffer from material waste.

[0004] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this application is to provide a battery device and an electrical device that can reduce material waste in the sampling components.

[0006] The technical solution adopted in the embodiments of this application is:

[0007] In a first aspect, a battery device is provided, including a battery information management component, a battery cell assembly, and a sampling component. The battery cell assembly includes multiple battery cells. The sampling component includes a connector, a signal transmission component, and a sampling unit. The connector is used for electrical connection with the battery information management component and has multiple connection terminals spaced apart. The sampling unit is used for acquiring sampling signals from the battery cells. The signal transmission component includes a transition section and a transmission section. The transition section includes a transition insulation body and multiple transition wires spaced apart within the transition insulation body. The transmission section includes a transmission insulation body and multiple transmission lines spaced apart within the transmission insulation body. The transmission lines are electrically connected to the sampling component. One end of the multiple transition wires is electrically connected to the multiple connection terminals, and the other end of the multiple transition wires is electrically connected to one end of the multiple transmission lines. The center distance between two adjacent transition wires located at the end of the transition section near the connector is greater than the center distance between two adjacent transmission lines, such that the dimension of the transmission section along a first direction is smaller than the dimension of the end of the transition section near the connector along a second direction. The first direction is the arrangement direction of the multiple transmission lines, and the second direction is the arrangement direction of the multiple transition wires at the end of the transition section near the connector.

[0008] By adopting the technical solution of this embodiment, when the battery device is in use, the sampling component collects the sampling signal of the battery cell, and the sampling component transmits the collected sampling signal to the transmission line. The transmission line transmits the sampling signal to the connection terminal in the connector through the adapter wire in the adapter section. The connection terminal then transmits the sampling signal to the battery information management component through the connector, thus realizing the monitoring of the working status of the battery device. The center distance between two adjacent adapter wires located at the end of the adapter section near the connector is greater than the center distance between two adjacent transmission lines, so that the dimension of the transmission section along the first direction is smaller than the dimension of the end of the adapter section near the connector along the second direction. The first direction is the arrangement direction of multiple transmission lines, and the second direction is the arrangement direction of multiple adapter wires at the end of the adapter section near the connector. The large dimension at the end of the adapter section near the connector can meet the connection requirements of the connection terminal with a large center distance. The small dimension of the transmission section along the first direction reduces the material used for the transmission insulation body of the transmission section and reduces the manufacturing cost of the sampling component. In addition, the small dimension of the transmission section along the first direction reduces the space occupied by the sampling component, which is conducive to improving the structural compactness of the battery device, improving the space utilization of the battery device, and improving the volumetric energy density of the battery device.

[0009] In some embodiments, the center-to-center distance between two adjacent transmission lines ranges from 1.0 mm to 1.8 mm; alternatively, the center-to-center distance between two adjacent transmission lines ranges from 1.1 mm to 1.5 mm.

[0010] By adopting the technical solution of this embodiment, the center distance between two adjacent transmission lines is reasonably designed, which can balance the manufacturing cost of the sampling components and the reliability of signal transmission.

[0011] In some embodiments, along a third direction, the size of the transmission segment along the first direction remains unchanged, the first direction is perpendicular to the thickness direction of the transmission segment, and the third direction is perpendicular to both the first direction and the thickness direction of the transmission segment.

[0012] By adopting the technical solution of this embodiment, the transmission segment is set with equal size in the first direction, which can effectively reduce the amount of material used in the transmission insulation body and reduce the manufacturing cost of the sampling component. In addition, the regular shape of the transmission segment is also convenient for processing and manufacturing, which helps to reduce the manufacturing cost of the transmission segment.

[0013] In some embodiments, the size of the transition section increases in the direction from the transmission section to the connector.

[0014] By adopting the technical solution of this embodiment, the size of the transition section increases incrementally along the first direction in the direction from the transmission section to the connector, which helps to reduce the amount of material used in the transition insulation body of the transition section and reduce the manufacturing cost of the sampling component.

[0015] In some embodiments, multiple transmission lines are arranged in parallel at intervals.

[0016] By adopting the technical solution of this embodiment, multiple transmission lines are arranged in parallel and at intervals, which is neat and helps to reduce the complexity of transmission section manufacturing and reduce the manufacturing cost of sampling components.

[0017] In some embodiments, the center-to-center distance between two adjacent adapter wires located at the end of the adapter section near the connector is greater than the center-to-center distance between two adjacent adapter wires located at the end of the adapter wire near the transmission line.

[0018] By adopting the technical solution of this embodiment, the adapter section can connect transmission lines with small center distances to connection terminals with larger center distances. Through the line spacing conversion inside the adapter section, the entire signal transmission component can adapt to the connection terminals with larger center distances inside the connector. The center distance between two adjacent transmission lines in the transmission section is small, resulting in a compact structure and reduced material waste.

[0019] In some embodiments, the center-to-center distance between two adjacent transition wires located at the end of the transition section near the transmission line is equal to the center-to-center distance between two adjacent transmission lines.

[0020] By adopting the technical solution of this embodiment, the center distance between two adjacent adapter wires located at the end of the adapter section near the transmission line is adapted to the center distance between two adjacent transmission lines, so that the adapter wires can be directly connected to the corresponding transmission lines, which facilitates the connection between the adapter section and the transmission section.

[0021] In some embodiments, the center-to-center distance between two adjacent adapter wires located at the end of the adapter section near the connector is equal to the center-to-center distance between two adjacent connection terminals.

[0022] By adopting the technical solution of this embodiment, the center distance between two adjacent adapter wires located at the end of the adapter section near the connector is adapted to the center distance between two adjacent connection terminals, so that multiple connection terminals can be directly connected to multiple adapter wires, which facilitates the connection between the connector and the adapter section.

[0023] In some embodiments, the center distance between two adjacent adapter cables located at least in the middle of the adapter segment increases along the direction from the transmission segment to the connector.

[0024] By adopting the technical solution of this embodiment, the incremental center distance design allows the adapter cables to be arranged more compactly within the adapter section, effectively saving space, improving the integration of the adapter section, reducing the amount of material used in the adapter section, and reducing the manufacturing cost of the sampling components.

[0025] In some embodiments, the transmission section and the switching section are separate structures. By adopting the technical solution of this embodiment, the transmission section and the switching section can be manufactured separately, which can reduce the manufacturing difficulty and cost of signal transmission components.

[0026] In some embodiments, the end of the adapter cable near the transmission line is exposed in the adapter insulation body, the end of the transmission line near the adapter cable is exposed in the transmission insulation body, and the end of the adapter cable exposed in the adapter insulation body is electrically connected to the end of the transmission line exposed in the transmission insulation body.

[0027] By adopting the technical solution of this embodiment, the end of the adapter cable exposed in the adapter insulation body and the end of the transmission line exposed in the transmission insulation body are electrically connected, which facilitates the electrical connection between the adapter cable and the transmission line, reduces the impact of the adapter insulation body and the transmission insulation body on the electrical connection between the adapter cable and the transmission line, and improves the reliability of the electrical connection between the adapter cable and the transmission line.

[0028] In some embodiments, the transition insulation body includes two transition insulation films stacked together, a plurality of transition wires disposed between the two layers of transition insulation films, at least one transition insulation film having a plurality of transition openings, the plurality of transition openings being located at the end of the transition section near the transmission line and corresponding to the plurality of transition wires one by one, the end of the transition wire near the transmission line being exposed to the transition insulation film through the corresponding transition opening.

[0029] By employing the technical solution of this embodiment, the adapter cable is sandwiched between two layers of adapter insulation film, making the entire adapter insulation body structure more compact. This facilitates complex wiring layouts within a limited space and improves space utilization. The two layers of adapter insulation film wrap the adapter cable in the middle, providing good insulation protection for the remaining parts except for the portion exposed through the adapter opening. This effectively reduces mutual interference between adapter cables and electrical contact with the external environment, improving the reliability and stability of the entire adapter section. Exposing the end of the adapter cable through the adapter opening makes the connection between the adapter cable and the transmission line more convenient and efficient.

[0030] In some embodiments, the plurality of adapter openings include a first adapter opening and a second adapter opening, the first adapter opening and the second adapter opening being offset from each other along a first direction, and the first adapter opening being closer to the connector than the second adapter opening.

[0031] By adopting the technical solution of this embodiment, the first adapter opening and the second adapter opening are staggered along the first direction, which can increase the distance between the first adapter opening and the second adapter opening. This helps to stagger the connection parts of the adapter cable and the transmission line, reduce the risk of mutual contact between the connection parts of the adapter cable and the transmission line, and reduce the risk of short circuits in the signal transmission components.

[0032] In some embodiments, the number of first transition openings and the number of second transition openings are multiple, the multiple first transition openings are arranged at intervals along a first direction, the multiple second transition openings are arranged at intervals along the first direction, and the multiple first transition openings and the multiple second transition openings are alternately distributed along the first direction.

[0033] By adopting the technical solution of this embodiment, the adjacent first and second transition openings are staggered, which can effectively reduce the risk of mutual contact between the connection parts of two adjacent transition lines and transmission lines, and reduce the risk of short circuits in signal transmission components.

[0034] In some embodiments, the first adapter opening and the second adapter opening are spaced apart along a third direction, the first direction being perpendicular to the thickness direction of the adapter insulation body, and the third direction being perpendicular to both the first direction and the thickness direction of the adapter insulation body. By adopting the technical solution of this embodiment, the first adapter opening and the second adapter opening are completely offset in the third direction, which can effectively increase the distance between the first adapter opening and the second adapter opening, reduce the risk of mutual contact between the connection parts of the adapter cable and the transmission line, and reduce the risk of short circuits in the signal transmission components.

[0035] In some embodiments, a transfer insulating adhesive is provided between the two transfer insulating films, and the transfer insulating adhesive at least partially fills the space between two adjacent transfer lines.

[0036] By adopting the technical solution of this embodiment, the transfer insulating adhesive is filled between two adjacent transfer wires. On the one hand, it can isolate the two adjacent transfer wires with insulation, which is also conducive to improving the insulation reliability between the transfer wires. On the other hand, the transfer insulating adhesive filled between two adjacent transfer wires can form a "support skeleton" to prevent the transfer wires from shaking between the two layers of transfer insulating film.

[0037] In some embodiments, the transmission insulation body includes two transmission insulation films stacked together, a plurality of transmission lines disposed between the two transmission insulation films, and the end of the transmission line near the adapter cable protrudes from the transmission insulation film and is connected to the corresponding adapter cable through the adapter opening.

[0038] By employing the technical solution of this embodiment, the transmission line is sandwiched between two layers of transmission insulation film, making the structure of the entire transmission insulation body more compact. This facilitates a compact line distribution within a limited space, improving space utilization. The transmission insulation film wraps the transmission line in the middle, and except for the portion protruding from the insulation film, the rest is well insulated and protected. This effectively reduces mutual interference between transmission lines and electrical contact with the external environment, improving the reliability and stability of the entire transmission segment. The transmission line is exposed through the end protruding from the insulation film; the exposed structure of the transmission line is simple, and its processing and manufacturing are easy, which helps reduce the manufacturing cost of the transmission segment. In addition, it also facilitates the connection between the transmission line and the adapter cable.

[0039] In some embodiments, the plurality of transmission lines include a first transmission line and a second transmission line, wherein the size of the first transmission line protruding from the transmission insulating film is larger than the size of the second transmission line protruding from the transmission insulating film, the first transmission line is connected to a corresponding adapter cable through a first adapter opening, and the second transmission line is electrically connected to a corresponding adapter cable through a second adapter opening.

[0040] By adopting the technical solution of this embodiment, the size of the first transmission line protruding from the transmission insulation film is larger than the size of the second transmission line protruding from the transmission insulation film. Taking the connector as a reference point, the end of the first transmission line protruding from the transmission insulation film is closer to the connector than the end of the second transmission line protruding from the transmission insulation film. This matches the positions of the first and second adapter openings, allowing the first and second transmission lines to correspond to the first and second adapter openings respectively after they are covered on the adapter section, facilitating the connection of the first and second transmission lines with their corresponding adapter cables. In addition, the larger size of the first transmission line protruding from the transmission insulation film also helps to stagger the connection parts of the adapter cables and transmission lines, reducing the risk of mutual contact between the connection parts of the adapter cables and transmission lines, and reducing the risk of short circuits in the signal transmission components.

[0041] In some embodiments, there are multiple first transmission lines and multiple second transmission lines, and the multiple first transmission lines and multiple second transmission lines are arranged alternately along a first direction.

[0042] By adopting the technical solution of this embodiment, multiple first transmission lines and multiple second transmission lines are arranged alternately along the first direction, which can effectively reduce the risk of mutual contact between the connection parts of two adjacent adapter lines and transmission lines, and reduce the risk of short circuits in signal transmission components.

[0043] In some embodiments, the transmission insulation body includes two transmission insulation films stacked together, a transmission line disposed between the two transmission insulation films, at least one transmission insulation film having multiple transition openings, the multiple transition openings being located at the end of the transmission segment near the transition segment and corresponding to the multiple transmission lines, the end of the transmission line near the transition segment being exposed to the transmission insulation film through the corresponding transition opening; the transition insulation body includes two transition insulation films stacked together, multiple transition wires disposed between the two transition insulation films, the end of the transition wire near the transmission line protruding from the transition insulation film and connected to the corresponding transmission line through the transition opening.

[0044] By adopting the technical solution of this embodiment, the adapter cable protrudes from the adapter insulation film, thus exposing the adapter cable; the transmission insulation film has an adapter opening, thus exposing the transmission line, so as to facilitate the electrical connection between the adapter cable and the transmission line.

[0045] In some embodiments, a transmission insulating adhesive is provided between the two transmission insulating films, and the transmission insulating adhesive at least partially fills the space between two adjacent transmission lines.

[0046] By adopting the technical solution of this embodiment, the transmission insulating adhesive is filled between two adjacent transmission lines. On the one hand, it can insulate and separate the two adjacent transmission lines, which is also conducive to improving the insulation reliability between transmission lines with small center distance. On the other hand, the transmission insulating adhesive filled between two adjacent transmission lines can form a "support skeleton" to prevent the transmission lines from shaking between the two transmission insulating films.

[0047] In some embodiments, the sampling component includes an electrical connector, at least one transmission insulating film has a sampling opening for partially exposing the transmission line; one end of the electrical connector is electrically connected to the transmission line through the sampling opening, and the other end of the electrical connector is used to acquire a sampling signal.

[0048] By adopting the technical solution of this embodiment, the electrical connector can be electrically connected to the transmission line through the sampling opening. The sampling signal collected by the electrical connector is then transmitted to the battery information management component through the transmission line. Using the electrical connector for sampling eliminates the need to cut the signal transmission component and bend the transmission line, reducing the risk of the transmission line being exposed due to bending and reducing the risk of damage to the transmission line.

[0049] In some embodiments, the electrical connector is crimped or soldered to the transmission line through a sampling opening.

[0050] By adopting the technical solution of this embodiment, one end of the electrical connector is crimped or welded to the transmission line through the sampling opening, which simplifies the connection operation and helps reduce manufacturing costs.

[0051] In some embodiments, one end of the electrical connector along the first direction is electrically connected to the corresponding transmission line, and the other end of the electrical connector along the first direction protrudes from the side of the transmission insulating film and is electrically connected to the battery cell.

[0052] By adopting the technical solution of this embodiment, one end of the electrical connector covers the transmission section along the first direction, and the other end of the electrical connector protrudes from the side of the transmission insulating film along the first direction. The end of the electrical connector protruding from the side of the transmission insulating film is electrically connected to the battery cell, thereby reducing the influence of the transmission insulating film on the electrical connection between the electrical connector and the battery cell and improving the reliability of the electrical connection between the electrical connector and the battery cell.

[0053] In some embodiments, two adjacent battery cells are electrically connected by a connector plate, and the end of the connector plate protruding from the transmission insulation film is welded or snapped onto the connector plate.

[0054] By adopting the technical solution of this embodiment, the electrical connector and the bar are connected by welding or snap-fitting, which is a simple connection method and helps to reduce manufacturing costs.

[0055] In some embodiments, the transmission line is crimped or soldered to the corresponding adapter cable through an adapter opening.

[0056] By adopting the technical solution of this embodiment, the transmission line and the adapter line are connected by crimping or welding, which simplifies the connection operation and helps reduce manufacturing costs.

[0057] In some embodiments, the connection point between the transmission line and the corresponding adapter cable is coated with insulating adhesive.

[0058] By adopting the technical solution of this embodiment, after the transmission line is connected to the corresponding adapter cable, insulating glue is applied to the connection position of the transmission line and the corresponding adapter cable. The insulating glue can be filled between two adjacent transmission lines, thereby insulating and separating the connection part of the transmission line and the adapter cable, improving the insulation performance between the connection part of the transmission line and the adapter cable, reducing the risk of short circuit in the signal transmission component, and improving the stability of the sampling signal transmission.

[0059] In some embodiments, at least one adapter insulating film is provided with a connection opening for exposing the end of the adapter cable near the connector, and the connection terminal is electrically connected to the end of the adapter cable near the connector through the connection opening.

[0060] By adopting the technical solution of this embodiment, the connection terminal can be electrically connected to the adapter cable through the connection opening. The connection method is simple and helps to reduce manufacturing costs.

[0061] In some embodiments, the connection terminal is crimped or soldered to the end of the adapter cable near the connector via a connection opening.

[0062] By adopting the technical solution of this embodiment, the connection terminal and the adapter cable are connected by crimping or soldering. The connector can serve as a signal output port and can be directly plugged into the battery information management component without the need for additional adapter cable bundles, thus saving connection costs for the sampling component and the battery information management component. In addition, the crimping or soldering connection operation is simple and helps to reduce the manufacturing cost of the sampling component.

[0063] In some embodiments, at least one of the switching section and the transmission section is a flexible line segment.

[0064] By adopting the technical solution of this embodiment, at least one of the transfer section and the transmission section adopts the structure of a flexible line segment. The flexible line segment can be bent, folded or twisted to a certain extent without affecting its electrical performance. The flexible line segment can adapt to various complex spatial layouts and shape requirements, and can better fit the internal structure of the battery device, saving space.

[0065] Secondly, an electrical device is provided, including the aforementioned battery device.

[0066] By adopting the technical solution of this embodiment, the power-consuming device uses the above-mentioned battery device, and the manufacturing cost of the sampling component in the battery device is low, which helps to reduce the manufacturing cost of the power-consuming device.

[0067] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0068] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments 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.

[0069] Figure 1 The diagram shows the structural features of a vehicle provided in some embodiments of this application.

[0070] Figure 2 This is an exploded structural diagram of a battery device provided in some embodiments of this application.

[0071] Figure 3 This is a schematic diagram of the structure of the busbar component, sampling component, and battery information management component provided in some embodiments of this application.

[0072] Figure 4 This is a schematic diagram of the structure of a sampling component provided in some embodiments of this application.

[0073] Figure 5 for Figure 4 The diagram shows the structure of the sampling component after concealing the connector and a transmission insulating film.

[0074] Figure 6 for Figure 4 A schematic diagram of the structure after the transmission segment is hidden by a transmission insulation film.

[0075] Figure 7 for Figure 4 A schematic diagram of the transition section in the diagram.

[0076] Figure 8 This is a schematic diagram of the connector structure provided for some embodiments of this application.

[0077] Figure 9 This is a schematic diagram of the structure of the transition section after a layer of transition insulation film is hidden in some embodiments of this application.

[0078] Figure 10Partial cross-sectional views of the transmission segment / transfer segment provided in some embodiments of this application.

[0079] Figure 11 This is a schematic diagram of the structure of the signal transmission component and the sampling component provided in some embodiments of this application.

[0080] Figure 12 for Figure 11 A magnified view of a portion of point A in the middle.

[0081] Figure 13 This is a schematic diagram of the structure of a sampling component provided in some embodiments of this application.

[0082] The following are the labeling elements in the figure:

[0083] 1000, Vehicle; 100, Battery Unit; 200, Controller; 300, Motor; 10, Housing; 11, First Housing; 12, Second Housing; 20, Battery Cell Assembly; 21, Battery Cell; 30, Battery Information Management Component; 40, Sampling Component; 41, Connector; 411, Connection Terminal; 42, Signal Transmission Component; 421, Adapter Section; 4211, Adapter Insulation Body; 42111, Adapter Insulation Film; 42112, Adapter Opening; 42113, First 42114, Second Adapter Opening; 42115, Connection Opening; 42116, Adapter Insulating Adhesive; 4212, Adapter Line; 422, Transmission Section; 4221, Transmission Insulating Body; 42211, Transmission Insulating Film; 42213, Sampling Opening; 42214, Transmission Insulating Adhesive; 4222, Transmission Line; 42221, First Transmission Line; 42222, Second Transmission Line; 43, Sampling Component; 431, Electrical Connector; 50, Busbar Component; 51, Switch Plate. Detailed Implementation

[0084] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the appendices in the embodiments of this application will be described below. Figures 1-13 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0085] In the description of the embodiments of this application, 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 indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include at least one of that feature.

[0086] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0087] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "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 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0088] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0089] In the description of this application, it should be understood that the terms "inner", "outer", "side", "upper", "bottom", "front", "rear", etc., indicating the orientation or positional relationship 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.

[0090] In the description of this application, it should be noted that the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0091] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0092] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0093] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0094] During operation, battery devices typically require sampling components to collect data from individual battery cells to monitor their operational status. This data includes parameters such as current, voltage, and temperature, reflecting the battery device's operating condition. The sampling components transmit this data to a battery information management component, which can then determine the individual battery cells' operational status and take timely measures such as power cut-off or pressure relief.

[0095] Some acquisition components in related technologies include connectors, signal transmission components, and sampling components. The signal transmission component includes an insulating body and multiple transmission cores disposed within the insulating body. One end of the multiple transmission cores is connected to the connector, and the transmission cores are electrically connected to the sampling component. The sampling component is used to collect sampling information from individual battery cells. The connector is electrically connected to the battery information management component. The sampling signal collected by the sampling component is transmitted to the connector via the transmission cores, and then transmitted to the battery information management component via the connector, thereby realizing the monitoring of the battery device's operating status. However, the center distance between the transmission cores needs to be equal to the center distance between the connecting terminals in the connector. If the center distance between the connecting terminals in the connector is large, the center distance between the transmission cores also needs to be set to be large, resulting in a waste of materials for the signal transmission component and hindering the reduction of the sampling component's cost.

[0096] Based on this, this application provides a battery device. The signal transmission component of this battery device includes a transition section and a transmission section. One end of multiple transition segments within the transition insulation body of the transition section is electrically connected to multiple connection terminals in a connector. The other end of the multiple transition segments is connected to multiple transmission lines within the transmission insulation body of the multiple transmission sections. The center-to-center distance between two adjacent transition lines located near the connector end of the transition section is greater than the center-to-center distance between two adjacent transmission lines. The center-to-center distance between adjacent transmission lines is set to be smaller, resulting in a more compact distribution of transmission lines. This makes the dimension of the transmission section along a first direction smaller than the dimension of the transition section near the connector end along a second direction. The first direction is the arrangement direction of the multiple transmission lines, and the second direction is the arrangement direction of the multiple transition lines at the connector end of the transition section. The smaller dimension of the transmission section along the first direction saves material for the insulating sampling body and reduces the manufacturing cost of the sampling component.

[0097] The technical solutions described in the embodiments of this application are applicable to various power devices that use battery devices, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships and spacecraft, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft.

[0098] For ease of explanation, the following embodiments will be described using a vehicle as an example of an electrical device according to an embodiment of this application.

[0099] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 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 100 is provided inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0100] refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device 100 provided in some embodiments of this application.

[0101] The battery device 100 mentioned in the embodiments of this application may include one or more battery cell assemblies 20 for providing voltage and capacity. The battery cell assembly 20 may include multiple battery cells 21, which are connected in series, parallel, or mixed connection via a busbar 50.

[0102] In some embodiments, the battery cell assembly 20 is typically formed by arranging a plurality of battery cells 21.

[0103] As an example, the battery cell assembly 20 can be a battery module, which is formed by arranging and fixing multiple battery cells 21 together. As an example, the battery module can be formed by bundling multiple battery cells 21 together with cable ties.

[0104] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 10 and one or more battery cell assemblies 20, the battery cell assemblies 20 being housed within the housing 10.

[0105] As an example, the battery cell assembly 20 can be a battery module, which can be housed in the housing 10 by fixing the battery module in the housing 10.

[0106] As an example, the battery cell assembly 20 can also be housed in the housing 10 by directly fixing multiple battery cells 21 to the housing 10.

[0107] As an example, the housing 10 may include a first housing 11 and a second housing 12. The first housing 11 and the second housing 12 are fastened together to form a closed space inside the housing 10 to house the battery cell assembly 20. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first housing 11 may be a top cover or a bottom plate.

[0108] As an example, the housing 10 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 10 forms an enclosed space to house the battery cell assembly 20.

[0109] In some embodiments, the housing 10 may be part of the chassis structure of the vehicle 1000. For example, a portion of the housing 10 may be at least a portion of the floor of the vehicle 1000, or a portion of the housing 10 may be at least a portion of the crossbeams and longitudinal beams of the vehicle 1000.

[0110] In some embodiments, battery device 100 refers to an energy storage device, which includes a cabinet with a door on at least one side. The energy storage device includes energy storage containers, energy storage cabinets, etc.

[0111] In some embodiments, the battery cell 21 can be a secondary battery, which refers to the battery cell 21 that can be used again after being discharged by recharging to activate the active materials.

[0112] The battery cell 21 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0113] To illustrate the technical solutions provided by the embodiments of this application, a detailed description is provided below in conjunction with specific drawings and embodiments. Among them, in Figures 4-13 In the diagram, the X-axis represents the length direction of transmission segment 422, and the Y-axis represents the width direction of transmission segment 422. Figure 10 The thickness direction of transmission segment 422 is indicated in the middle.

[0114] Figure 3 This is a schematic diagram of the structure of the busbar component 50, the sampling component 40, and the battery information management component 30 provided in some embodiments of this application. Figure 4 This is a schematic diagram of the structure of the sampling component 40 provided in some embodiments of this application. Figure 5 for Figure 4The diagram shows the structure of the sampling component 40 after concealing the connector 41 and a transmission insulating film 42211. Figure 6 for Figure 4 A schematic diagram of the structure of the transmission segment 422 after a transmission insulating film 42211 is hidden. Figure 7 for Figure 4 A schematic diagram of the transition section 421 in the middle. Figure 8 This is a schematic diagram of the structure of connector 41 provided in some embodiments of this application. Figure 9 This is a schematic diagram of the structure of the adapter segment 421 provided in some embodiments of this application after a layer of adapter insulating film 42111 is hidden. Figure 10 A partial cross-sectional view of the transmission segment 422 / transition segment 421 provided for some embodiments of this application.

[0115] In some embodiments, the battery device 100 includes a battery cell assembly 20, a battery information management component 30, and a sampling component 40. The battery cell assembly 20 includes a plurality of battery cells 21. The sampling component 40 includes a connector 41, a signal transmission component 42, and a sampling component 43. The connector 41 is used for electrical connection with the battery information management component 30 and has a plurality of connection terminals 411 spaced apart. The sampling component 43 is used to collect sampling signals from the battery cells 21. The signal transmission component 42 includes a transition section 421 and a transmission section 422. The transition section 421 includes a transition insulation body 4211 and a plurality of transition wires 4212 spaced apart within the transition insulation body 4211. The transmission section 422 includes a transmission insulation body 4221 and a transmission wire 422 spaced apart within the transmission insulation body 4211. Multiple transmission lines 4222 are located within the insulating body 4221 and are electrically connected to the sampling component 43. One end of multiple adapter wires 4212 is electrically connected to multiple connection terminals 411, and the other end of the multiple adapter wires 4212 is electrically connected to one end of the multiple transmission lines 4222. The center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter segment 421 near the connector 41 is greater than the center distance L2 between two adjacent transmission lines 4222, such that the dimension W1 of the transmission segment 422 along the first direction is smaller than the dimension W2 of the end of the adapter segment 421 near the connector 41 along the second direction. The first direction is the arrangement direction of the multiple transmission lines 4222, and the second direction is the arrangement direction of the multiple adapter wires 4212 at the end of the adapter segment 421 near the connector 41.

[0116] The battery information management component 30 may be a battery management system (BMS). The battery management system is used to perform at least one of the following functions on the battery device 100: state monitoring, state analysis, charge / discharge control, safety protection, thermal management, high-voltage power distribution, and information management. In addition, the battery management system may also be configured to implement at least some of the functions of the controller 200 in the electrical device, such as implementing some functions of the vehicle control unit (VCU) or the motor control unit (MCU), and this application does not impose any limitations on this.

[0117] It should be noted that the physical device of the battery management system in this application can be integrated into the battery device 100, such as into the battery pack; it can also be integrated into the power consumption device, such as into the vehicle 1000 or the chassis of the vehicle 1000; or it can be integrated into the charging device, such as into the charging device or the battery swapping device.

[0118] The battery management system in this application can also be deployed as control software on a server. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, knowledge computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms, such as vehicle networking cloud, APP backend, etc.

[0119] Connector 41 is used to establish a signal transmission channel between signal transmission component 42 and battery information management component 30. One end of connector 41 is electrically connected to adapter cable 4212 inside signal transmission component 42, and the other end of connector 41 is connected to battery information management component 30, thereby transmitting the sampling signal collected by sampling component 43 to battery information management component 30. Connector 41 can be a puncture connector, SMT (Surface Mount Technology) connector, etc.

[0120] In some examples, the battery information component has a connector that can be inserted into connector 41 to achieve an electrical connection between the battery information management component 30 and connector 41.

[0121] The connecting terminal 411 can refer to a conductive component within the connector 41. Multiple connecting terminals 411 are respectively connected to the ends of multiple adapter cables 4212, thereby achieving electrical conductivity. The multiple connecting terminals 411 are arranged at intervals along a second direction to facilitate electrical connection with the adapter cables 4212. The connector 41 includes a housing, and the connecting terminals 411 are installed within the housing; alternatively, one end of the connecting terminal 411 is installed within the housing, and the other end extends outside the housing to facilitate electrical connection with the adapter cables 4212. For example, the connecting terminal 411 can refer to a PIN structure within the connector 41.

[0122] In some examples, one end of the adapter section 421 is inserted into the connector 41, and multiple adapter wires 4212 are connected to multiple connection terminals 411 one by one, thereby realizing the electrical conduction between the sampling component 40 and the connector 41. The adapter section 421 and the corresponding connection terminal 411 can be electrically connected by means of welding or crimping.

[0123] The signal transmission component 42 can refer to a component used to transmit the sampling signal. The signal transmission component 42 includes a transition section 421 and a transmission section 422, with the transition section 421 connecting the transmission section 422 and the connector 41. The sampling information collected by the sampling component 43 is transmitted to the connector 41 sequentially via the transmission section 422 and the transition section 421.

[0124] The transition section 421 includes a transition insulation body 4211 and multiple transition wires 4212. The transition insulation body 4211 can refer to an installation base made of insulating material. The multiple transition wires 4212 are installed inside the transition insulation body 4211. The transition insulation body 4211 supports the multiple transition wires 4212, can connect the multiple transition wires 4212 into a whole, and can also provide insulation and protection for the transition wires 4212. The multiple transition wires 4212 are arranged at intervals along a first direction, which can reduce mutual interference between signals within the transition section 421 and reduce the risk of short circuits in the transition section 421. The insulating material can be polycarbonate, polyethylene terephthalate, etc.

[0125] In some examples, the transition insulation body 4211 includes two insulating films stacked together, with a plurality of transition wires 4212 spaced apart between the two insulating films. The insulating films may be polycarbonate films, polyethylene terephthalate films, etc.

[0126] The adapter wire 4212 can refer to the wire used in the adapter section 421. The adapter wire 4212 is used to transmit sampling signals and can be made of copper wire, aluminum wire, etc.

[0127] The transmission segment 422 includes a transmission insulation body 4221 and multiple transmission lines 4222. The transmission insulation body 4221 can refer to an installation base made of insulating material. The multiple transmission lines 4222 are installed inside the transmission insulation body 4221. The transmission insulation body 4221 supports the multiple transmission lines 4222, can connect the multiple transmission lines 4222 into a whole, and can also provide insulation and protection for the transmission lines 4222. The multiple transmission lines 4222 are arranged at intervals, which can reduce mutual interference between signals within the transmission segment 422 and reduce the risk of short circuits in the transmission segment 422. The insulating material can be polycarbonate, polyethylene terephthalate, etc.

[0128] In some examples, the transmission insulation body 4221 includes two insulating films stacked together, and a plurality of transmission lines 4222 are spaced apart between the two insulating films.

[0129] The transmission line 4222 can be a wire used within the transmission segment 422. The transmission line 4222 is used to transmit sampling signals. The transmission line 4222 can be copper wire, aluminum wire, etc.

[0130] One end of multiple adapter cables 4212 is electrically connected to multiple connection terminals 411, and the other end of multiple adapter cables 4212 is electrically connected to one end of multiple transmission lines 4222. For example, multiple adapter cables 4212 are connected to multiple connection terminals 411 one-to-one, and multiple adapter cables 4212 are connected to multiple transmission lines 4222 one-to-one. The adapter cables 4212 serve to connect the transmission lines 4222 and the connection terminals 411, so that the sampling signal can be transmitted to the connection terminals 411 of the connector 41 via the transmission lines 4222 and the adapter cables 4212, and then transmitted to the battery information management component 30 to realize the monitoring of the working status of the battery device 100.

[0131] The first direction can refer to the arrangement direction of multiple transmission lines 4222. For example, the first direction can refer to the width direction of the transmission segment 422.

[0132] The second direction can refer to the arrangement direction of multiple adapter wires 4212 at the end of the adapter section 421 near the end of the connector 41 transmission line 4222, that is, the arrangement direction of multiple adapter wires 4212 near the end of the connector 41, or the arrangement direction of the end of multiple adapter wires 4212 connected to the connection terminal 411, or the arrangement direction of the end of multiple adapter wires 4212 away from the transmission line 4222.

[0133] For example, the first direction may refer to the width direction at the end of the transition section 421 away from the transmission section 422, as detailed in the reference. Figure 9 in the Y direction.

[0134] In some examples, the transition segment 421 extends along a first direction, which is parallel to the second direction.

[0135] In some examples, if the transition section 421 is bent, the second direction can be perpendicular to, parallel to, at an acute angle to, or at an obtuse angle to the first direction.

[0136] The center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter section 421 near the connector 41 can refer to the center distance between the ends of two adjacent adapter wires 4212 near the connector 41, or the center distance between the ends of multiple adapter wires 4212 connected to the connection terminal 411, or the center distance between the ends of two adjacent adapter wires 4212 away from the transmission line 4222; this center distance can be equal to the center distance L4 between two adjacent connection terminals 411, so as to facilitate the one-to-one connection of multiple adapter wires 4212 with multiple connection terminals 411; wherein, the center distance can refer to the distance between the center lines of two components.

[0137] The center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter segment 421 near the connector 41 is greater than the center distance L2 between two adjacent transmission lines 4222. The center distance L2 between two adjacent transmission lines 4222 within the transmission segment 422 is small. The center distance between two adjacent adapter wires 4212 at one end of the adapter segment 421 is large, which makes the dimension W1 of the transmission segment 422 along the first direction smaller than the dimension W2 of the end of the adapter segment 421 near the connector 41 along the second direction.

[0138] Sampling component 43 can refer to a component used to collect sampling signals from the battery cell 21. The collected signals can be, but are not limited to, information such as the temperature, voltage, and current of the battery cell 21.

[0139] In some examples, when the sampling component 43 collects the temperature of the battery cell 21, the sampling component 43 includes a temperature sensor and an electrical connector. The temperature sensor is located at the battery cell 21 and is electrically connected to the transmission line 4222 via the electrical connector. The temperature signal collected by the temperature sensor is transmitted to the transmission line 4222 via the electrical connector, and then to the connector 41 and the battery information management component 30. The electrical connector may be a wire, conductive sheet, or other structure.

[0140] In some examples, when the sampling component 43 collects signals such as current and voltage of the battery cell 21, the sampling component 43 includes an electrical connector. One end of the electrical connector is electrically connected to the plate 51 of the bus component 50 on the battery cell 21, and the other end of the electrical connector is electrically connected to the transmission line 4222. The current, voltage and other information of the battery cell 21 can be transmitted to the transmission line 4222 through the electrical connector, and then to the connector 41 and the battery information management component 30.

[0141] In this embodiment of the battery device 100, during use, the sampling component 43 collects the sampling signal of the battery cell 21. The sampling component 43 transmits the collected sampling signal to the transmission line 4222. The transmission line 4222 transmits the sampling signal to the connection terminal 411 in the connector 41 through the adapter wire 4212 in the adapter section 421. The connection terminal 411 then transmits the sampling signal to the battery information management component 30 through the connector 41, thus realizing the monitoring of the working status of the battery device 100. The center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter section 421 near the connector 41 is greater than the center distance L2 between two adjacent transmission lines 4222, making the dimension W1 of the transmission section 422 along the first direction smaller than the dimension W2 of the end of the adapter section 421 near the connector 41 along the second direction. The first direction is the arrangement direction of multiple transmission lines 4222, and the second direction is the arrangement direction of multiple adapter wires 4212 at the end of the adapter section 421 near the connector 41. The center distance L1 between two adjacent adapter wires 4212 at the end of the adapter section 421 near the connector 41 is large, which can adapt to the connection requirements of the large center distance connection terminal 411. The center distance L2 between two adjacent transmission lines 4222 is small, which can reduce the size W1 of the transmission section 422 along the first direction, reduce the material used of the transmission insulation body 4221 of the transmission section 422, and reduce the manufacturing cost of the sampling component 40. In addition, the smaller size W1 of the transmission section 422 along the first direction reduces the space occupied by the sampling component 40, which is conducive to improving the structural compactness of the battery device 100, improving the space utilization of the battery device 100, and improving the volumetric energy density of the battery device 100.

[0142] In some embodiments, the center distance L2 between two adjacent transmission lines 4222 ranges from 1.0 mm to 1.8 mm.

[0143] The center distance L2 between two adjacent transmission lines 4222 can be 1.0mm, 1.8mm, or any value between 1.0mm and 1.8mm. For example, the center distance L2 between two adjacent transmission lines 4222 can be, but is not limited to, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, or 1.8mm.

[0144] In related technologies, the center distance L4 between two adjacent connection terminals 411 is set to 2mm to 5mm. The design that the center distance L2 between two adjacent transmission lines 4222 is less than or equal to 1.8mm makes the center distance L2 between two adjacent transmission lines 4222 less than the center distance L4 between two adjacent connection terminals 411. This allows the dimension W1 of the transmission segment 422 along the first direction to be smaller than the dimension W2 of the end of the adapter segment 421 near the connector 41 along the second direction, thereby reducing the dimension W1 of the transmission segment 422 along the first direction, saving material for the transmission insulation body 4221, and reducing the manufacturing cost of the sampling component 40. The design that the center distance L2 between two adjacent transmission lines 4222 is greater than or equal to 1.0mm ensures sufficient insulation distance between the two adjacent transmission lines 4222, reducing the risk of short circuits in the transmission lines 4222 and improving the reliability of signal transmission.

[0145] By adopting the technical solution of this embodiment, both the manufacturing cost of the sampling component 40 and the reliability of signal transmission can be taken into account.

[0146] In some embodiments, the center distance L2 between two adjacent transmission lines 4222 ranges from 1.1 mm to 1.5 mm.

[0147] By adopting the technical solution of this embodiment, the manufacturing cost of the sampling component 40 and the reliability of signal transmission can be better balanced.

[0148] In some embodiments, along a third direction, the dimension W1 of the transmission segment 422 along the first direction remains unchanged, the third direction is perpendicular to the thickness direction of the transmission segment 422, and the third direction is perpendicular to both the first direction and the thickness direction of the transmission segment 422.

[0149] The direction along the third direction can refer to the length direction of transmission segment 422.

[0150] Along the third direction, the dimension W1 of the transmission segment 422 along the first direction remains unchanged. It is understandable that, considering the installation requirements of the signal transmission component 42, the dimension W1 of the transmission segment 422 along the first direction is not required to remain completely unchanged. It is only required that the dimension W1 of the transmission segment 422 along the first direction remains approximately unchanged.

[0151] For example, transmission segment 422 is a fixed-width structure or a structure similar to a fixed-width structure.

[0152] In some examples, when the sampling component 40 needs to avoid components on the battery cell 21, a clearance hole structure is provided on the edge of the transmission segment 422, which causes the width of the transmission segment 422 to change. This situation belongs to the case where the size W1 of the transmission segment 422 along the first direction remains approximately unchanged along the third direction.

[0153] By adopting the technical solution of this embodiment, the transmission segment 422 is set with equal size in the first direction, which can effectively reduce the amount of material used in the transmission insulation body 4221 and reduce the manufacturing cost of the sampling component 40. In addition, the regular shape of the transmission segment 422 is also convenient for processing and manufacturing, which helps to reduce the manufacturing cost of the transmission segment 422.

[0154] In some embodiments, the size of the transition section 421 increases incrementally along the first direction in the direction from the transmission section 422 to the connector 41.

[0155] Refer to the direction from transmission segment 422 to connector 41. Figure 7 The negative of X.

[0156] In some examples, the size of the adapter segment 421 can increase linearly along the direction from the transmission segment 422 to the connector 41. For example, the adapter segment 421 is a trapezoidal structure, with the larger end of the trapezoidal structure connected to the connector 41 and the smaller end of the trapezoidal structure connected to the transmission segment 422.

[0157] In some examples, the size of the transition segment 421 along the first direction from the transmission segment 422 to the connector 41 can increase non-linearly, for example, the transition segment 421 is an exponential curve structure or a parabolic structure.

[0158] In some examples, the size of the transition segment 421 along the direction from the transmission segment 422 to the connector 41 can be segmented and increasing in the first direction; for example, the transition segment 421 can be a multi-segment structure formed by multiple segments of equal width.

[0159] By adopting the technical solution of this embodiment, the size of the transition section 421 is increased along the direction from the transmission section 422 to the connector 41. This helps to reduce the amount of material used in the transition insulation body 4211 of the transition section 421 and reduce the manufacturing cost of the sampling component 40.

[0160] In some embodiments, multiple transmission lines 4222 are arranged in parallel at intervals.

[0161] The transmission line 4222 is a straight structure, and multiple transmission lines 4222 extend parallel to each other in a single direction (e.g., the X-axis) in the same plane and are spaced apart in a vertical direction (e.g., the Y-axis). For example, multiple transmission lines 4222 can be arranged at equal intervals.

[0162] By adopting the technical solution of this embodiment, multiple transmission lines 4222 are arranged in parallel and at intervals, which is neat and helps to reduce the complexity of the transmission section 422 and the manufacturing cost of the sampling component 40.

[0163] In some embodiments, the center-to-center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter segment 421 near the connector 41 is greater than the center-to-center distance L3 between two adjacent adapter wires 4212 located at the end of the adapter wire 4212 near the transmission line 4222.

[0164] The center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter section 421 near the connector 41 is large, which can be adapted to the connection terminal 411 with a large center distance. The center distance L3 between two adjacent adapter wires 4212 located at the end of the adapter wire 4212 near the transmission line 4222 is small, which can be adapted to the transmission line 4222 with a small center distance. The adapter section 421 can connect the transmission line 4222 with a small center distance to the connection terminal 411 with a larger center distance. Through the spacing conversion of the adapter wires 4212 inside the adapter section 421, the entire signal transmission component 42 can be adapted to the connection terminal 411 with a larger center distance inside the connector 411. Meanwhile, the center distance L2 between two adjacent transmission lines 4222 inside the transmission section 422 is small, resulting in a compact structure and reduced material waste.

[0165] In some embodiments, the center-to-center distance L3 between two adjacent transition lines 4212 located at the end of the transition section 421 near the transmission line 4222 is equal to the center-to-center distance L2 between two adjacent transmission lines 4222.

[0166] Understandably, considering manufacturing errors of components, the center distance L3 between two adjacent adapter wires 4212 located at the end of adapter segment 421 near transmission line 4222 is equal to or approximately equal to the center distance L2 between two adjacent transmission lines 4222. That is, it is not required that the center distance L3 between two adjacent adapter wires 4212 located at the end of adapter segment 421 near transmission line 4222 be strictly equal to the center distance L2 between two adjacent transmission lines 4222. For example, the center distance L3 between two adjacent adapter wires 4212 located at the end of adapter segment 421 near transmission line 4222 is within ±10% of the error range of the center distance L2 between two adjacent transmission lines 4222.

[0167] By adopting the technical solution of this embodiment, the center distance L3 of two adjacent adapter wires 4212 located at the end of the adapter segment 421 near the transmission line 4222 is adapted to the center distance L2 of two adjacent transmission lines 4222, so that the adapter wires 4212 can be directly connected to the corresponding transmission lines 4222, which facilitates the connection between the adapter segment 421 and the transmission segment 422.

[0168] In some embodiments, the center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter section 421 near the connector 41 is equal to the center distance L4 between two adjacent connection terminals 411.

[0169] Understandably, considering manufacturing tolerances, the center-to-center distance L1 of two adjacent adapter wires 4212 at the end of the adapter segment 421 near the connector 41 is equal to or approximately equal to the center-to-center distance L4 of two adjacent connecting terminals 411. That is, it is not required that the center-to-center distance L1 of two adjacent adapter wires 4212 at the end of the adapter segment 421 near the connector 41 be strictly equal to the center-to-center distance L4 of two adjacent connecting terminals 411. For example, the center-to-center distance L1 of two adjacent adapter wires 4212 at the end of the adapter segment 421 near the connector 41 is within ±10% of the center-to-center distance L4 of two adjacent connecting terminals 411.

[0170] By adopting the technical solution of this embodiment, the center distance L1 of two adjacent adapter wires 4212 located at the end of the adapter section 421 near the connector 41 is adapted to the center distance L4 of two adjacent connection terminals 411, so that multiple connection terminals 411 can be directly connected to multiple adapter wires 4212, which facilitates the connection between the connector 41 and the adapter section 421.

[0171] In some embodiments, along the direction from the transmission segment 422 to the connector 41, the center distance between two adjacent adapter wires 4212 located at least in the middle of the adapter segment 421 is increased.

[0172] In some examples, multiple adapter wires 4212 are evenly spaced near the ends of connector 41 to facilitate electrical connection with multiple connection terminals 411. Multiple adapter wires 4212 are evenly spaced near the ends of transmission line 4222 to facilitate electrical connection with transmission line 4222. Along the direction from transmission segment 422 to connector 41, the center distance between two adjacent adapter wires 4212 located in the middle of the adapter segment 421 increases progressively. The center distance between two adjacent adapter wires 4212 may increase linearly, non-linearly, or in segments.

[0173] In some examples, the center distance between two adjacent adapter wires 4212 within the entire adapter segment 421 increases along the direction from the transmission segment 422 to the connector 41.

[0174] By adopting the technical solution of this embodiment, the incremental center distance design allows the adapter cable 4212 to be arranged more compactly within the adapter section 421, effectively saving space, improving the integration of the adapter section 421, reducing the material usage of the adapter section 421, and reducing the manufacturing cost of the sampling component 40.

[0175] In some embodiments, the transmission segment 422 and the switching segment 421 are separate structures.

[0176] The transmission section 422 and the transition section 421 are two independent components. The transmission section 422 and the transition section 421 are formed separately and then assembled together.

[0177] The multiple transmission lines 4222 in the transmission segment 422 are arranged in a regular manner, while the distance between the multiple adapter lines 4212 in the adapter segment 421 needs to change. However, the transmission segment 422 and the adapter segment 421 of the signal transmission component 42 in this embodiment can be manufactured separately, which can reduce the manufacturing difficulty of the signal transmission component 42 and reduce the manufacturing cost.

[0178] In some embodiments, the transmission section 422 and the switching section 421 may also be an integrated structure, which can improve the integration of the signal transmission component 42 and reduce the amount of material used.

[0179] In some embodiments, the end of the adapter cable 4212 near the transmission line 4222 is exposed in the adapter insulation body 4211, the end of the transmission line 4222 near the adapter cable 4212 is exposed in the transmission insulation body 4221, and the end of the adapter cable 4212 exposed in the adapter insulation body 4211 is electrically connected to the end of the transmission line 4222 exposed in the transmission insulation body 4221.

[0180] The end of the adapter cable 4212 near the transmission line 4222 is exposed by the adapter insulation body 4211, and the end of the adapter cable 4212 near the transmission line 4222 is not covered by the adapter insulation body 4211.

[0181] In some examples, the end of the adapter cable 4212 near the transmission line 4222 protrudes directly from the adapter insulation body 4211.

[0182] In some examples, the adapter insulation body 4211 is directly exposed through an opening, so that the end of the adapter cable 4212 near the transmission line 4222 is exposed.

[0183] The end of the transmission line 4222 near the adapter wire 4212 is exposed to the transmission insulation body 4221, and the end of the transmission line 4222 near the adapter wire 4212 is not covered by the transmission insulation body 4221.

[0184] In some examples, the end of the transmission line 4222 protrudes directly from the transmission insulation body 4221 near the adapter line 4212.

[0185] In some examples, the transmission insulation body 4221 is directly exposed through an opening, so that the end of the transmission line 4222 near the adapter wire 4212 is exposed.

[0186] The end of the adapter cable 4212 exposed at the adapter insulation body 4211 and the end of the transmission line 4222 exposed at the transmission insulation body 4221 can be electrically connected by means of crimping or welding.

[0187] By adopting the technical solution of this embodiment, the end of the adapter cable 4212 exposed at the adapter insulation body 4211 and the end of the transmission line 4222 exposed at the transmission insulation body 4221 are electrically connected. This facilitates direct electrical connection between the adapter cable 4212 and the transmission line 4222, reduces the impact of the adapter insulation body 4211 and the transmission insulation body 4221 on the electrical connection between the adapter cable 4212 and the transmission line 4222, and improves the reliability of the electrical connection between the adapter cable 4212 and the transmission line 4222.

[0188] In some embodiments, the transition insulation body 4211 includes two transition insulation films 42111 stacked together, a plurality of transition wires 4212 disposed between the two layers of transition insulation films 42111, and at least one transition insulation film 42111 is provided with a plurality of transition openings 42112. The plurality of transition openings 42112 are located at the end of the transition segment 421 near the transmission line 4222 and are provided in a one-to-one correspondence with the plurality of transition wires 4212. The end of the transition wire 4212 near the transmission line 4222 is exposed to the transition insulation film 42111 through the corresponding transition opening 42112.

[0189] The term "transfer insulating film 42111" can refer to a film made of insulating materials, such as polycarbonate film or polyethylene terephthalate film.

[0190] Two transition insulating films 42111 are stacked along the thickness direction of the transition section 421, and multiple transition wires 4212 are disposed between the two layers of transition insulating films 42111, so that the opposite sides of the transition wires 4212 are isolated from the external environment, providing electrical insulation protection for the transition wires 4212, reducing the risk of electrical faults such as short circuits between the transition wires 4212 and between the transition wires 4212 and the external environment, and improving the safety and stability of signal transmission.

[0191] One of the two transition insulating films 42111 has a transition opening 42112; or, both transition insulating films 42111 have transition openings 42112. The transition opening 42112 can be obtained by creating a hole in the transition insulating film 42111. The transition opening 42112 is located at the end of the transition section 421 near the transmission section 422, allowing the end of the transition cable 4212 near the transmission line 4222 to be exposed.

[0192] The number of adapter openings 42112 can be multiple, and multiple adapter openings 42112 are set in a one-to-one correspondence with multiple adapter cables 4212.

[0193] By adopting the technical solution of this embodiment, the adapter cable 4212 is sandwiched between two layers of adapter insulating film 42111, making the structure of the entire adapter insulating body 4211 more compact. This facilitates complex circuit layouts within a limited space and improves space utilization. The two layers of adapter insulating film 42111 wrap the adapter cable 4212 in the middle, and except for the part exposed through the adapter opening 42112, the rest is well insulated and protected. This effectively reduces mutual interference between adapter cables 4212 and electrical contact with the external environment, improving the reliability and stability of the entire adapter section 421. The adapter opening 42112 exposes the end of the adapter cable 4212, making the connection between the adapter cable 4212 and the transmission line 4222 more convenient and efficient. In actual production, welding, crimping, and other methods can be used to reliably connect the adapter cable 4212 and the transmission line 4222, and the design of the adapter opening 42112 facilitates these connection operations.

[0194] In some embodiments, the plurality of adapter openings 42112 include a first adapter opening 42113 and a second adapter opening 42114, the first adapter opening 42113 and the second adapter opening 42114 being staggered along a first direction, and the first adapter opening 42113 being closer to the connector 41 than the second adapter opening 42114.

[0195] One first transition opening 42113 corresponds to one transition opening 42112, and one second transition opening 42114 corresponds to one transition opening 42112. The number of first transition openings 42113 can be one or more, and the number of second transition openings 42114 can be one or more.

[0196] The projection of the first transition opening 42113 along the first direction and the projection of the second transition opening 42114 along the first direction do not overlap at least partially.

[0197] In some examples, the first adapter opening 42113 is offset relative to the second adapter opening 42114 in a third direction, forming a staggered layout. With connector 41 as the reference point, the first adapter opening 42113 is closer to connector 41 in the third direction, while the second adapter opening 42114 is farther away from connector 41, and there is a front-to-back position difference between the two in the third direction.

[0198] By adopting the technical solution of this embodiment, the first transition opening 42113 and the second transition opening 42114 are staggered along the first direction, which can increase the distance between the first transition opening 42113 and the second transition opening 42114. This is beneficial to stagger the connection part of the transition cable 4212 and the transmission line 4222, reduce the risk of mutual contact between the connection parts of the transition cable 4212 and the transmission line 4222, and reduce the risk of short circuit in the signal transmission component 42.

[0199] In some embodiments, there are multiple first transition openings 42113 and multiple second transition openings 42114. Multiple first transition openings 42113 are arranged at intervals along a first direction, and multiple second transition openings 42114 are arranged at intervals along a first direction. Multiple first transition openings 42113 and multiple second transition openings 42114 are alternately distributed along a first direction.

[0200] Multiple first transition openings 42113 and multiple second transition openings 42114 appear sequentially and cyclically along the first direction, forming an arrangement pattern of "first transition opening 42113, second transition opening 42114, first transition opening 42113, second transition opening 42114..."; multiple first transition openings 42113 are arranged at intervals along the first direction to form a column of transition openings 42112, and multiple second transition openings 42114 are arranged at intervals along the second direction to also form a column of transition openings 42112, wherein one column of transition openings 42112 is offset upward relative to another column of transition openings 42112, forming an alternating staggered layout of first transition openings 42113 and second transition openings 42114.

[0201] By adopting the technical solution of this embodiment, the adjacent first transition opening 42113 and second transition opening 42114 are staggered, which can effectively reduce the risk of mutual contact between the connection parts of two adjacent transition lines 4212 and transmission lines 4222, and reduce the risk of short circuit in the signal transmission component 42.

[0202] In some embodiments, a transition insulating adhesive 42116 is provided between the two transition insulating films 42111, and the transition insulating adhesive 42116 at least partially fills the space between two adjacent transition lines 4212.

[0203] The transition insulating adhesive 42116 can refer to the insulating adhesive filled between two layers of transition insulating film 42111. The transition insulating adhesive 42116 can be epoxy resin adhesive, acrylic adhesive, etc. The transition insulating adhesive 42116 can refer to the insulating adhesive that is filled alone between two layers of transition insulating film 42111, or it can refer to the adhesive on the back of the transition insulating film 42111 itself.

[0204] A portion of the adapter insulating adhesive 42116 is filled in the gap between two adjacent adapter wires 4212, and another portion of the adapter insulating adhesive 42116 may also be filled in the gap between the adapter wire 4212 and the adapter insulating film 42111; or, the adapter insulating adhesive 42116 may be completely filled in the gap between the adapter wires 4212.

[0205] By adopting the technical solution of this embodiment, the transition insulating adhesive 42116 is filled between two adjacent transition wires 4212. On the one hand, it can insulate and separate the two adjacent transition wires 4212, which is also conducive to improving the insulation reliability between the transition wires 4212. In addition, the transition insulating adhesive 42116 filled between two adjacent transition wires 4212 can form a "support skeleton" to prevent the transition wires 4212 from shaking between the two layers of transition insulating film 42111.

[0206] In some embodiments, the first transition opening 42113 and the second transition opening 42114 are spaced apart along a third direction, the first direction being perpendicular to the thickness direction of the transition insulation body 4211, and the third direction being perpendicular to both the first direction and the thickness direction of the transition insulation body 4211.

[0207] The projection of the first transition opening 42113 along the first direction does not coincide with the projection of the second transition opening 42114 along the second direction.

[0208] Multiple first transition openings 42113 are arranged at intervals along a first direction to form a row of transition openings 42112, and multiple second transition openings 42114 are arranged at intervals along a second direction to also form a row of transition openings 42112, and the two rows of transition openings 42112 are arranged at intervals along a third direction.

[0209] By adopting the technical solution of this embodiment, the first adapter opening 42113 and the second adapter opening 42114 are completely offset in the third direction, which can effectively increase the distance between the first adapter opening 42113 and the second adapter opening 42114, reduce the risk of mutual contact between the connection parts of the adapter line 4212 and the transmission line 4222, and reduce the risk of short circuit.

[0210] In some embodiments, the transmission insulation body 4221 includes two transmission insulation films 42211 stacked together, and a plurality of transmission lines 4222 disposed between the two transmission insulation films 42211. The end of the transmission line 4222 near the adapter line 4212 protrudes from the transmission insulation film 42211 and is electrically connected to the corresponding adapter line 4212 through the adapter opening 42112.

[0211] The transmission insulating film 42211 can refer to a film made of insulating material, such as polycarbonate film, polyethylene terephthalate film, etc.

[0212] Two transmission insulating films 42211 are stacked along the thickness direction of the transmission section 422, and multiple transmission lines 4222 are disposed between the two layers of transmission insulating films 42211, which isolates the opposite sides of the transmission lines 4222 from the external environment, provides electrical insulation protection for the transmission lines 4222, reduces the risk of electrical faults such as short circuits between transmission lines 4222 and between transmission lines 4222 and the external environment, and improves the safety and stability of signal transmission.

[0213] In some examples, the length of the transmission insulating film 42211 is less than the length of the transmission line 4222, which allows the end of the transmission line 4222 to protrude beyond the transmission insulating film 42211.

[0214] The end of the transmission line 4222 near the adapter cable 4212 protrudes from the transmission insulation film 42211 and is exposed outside the transmission insulation film 42211. The end of the transmission line 4222 protruding from the transmission insulation film 42211 covers the adapter section 421 and is electrically connected to the adapter cable 4212 through the adapter opening 42112.

[0215] By adopting the technical solution of this embodiment, the transmission line 4222 is sandwiched between two layers of transmission insulation film 42211, making the structure of the entire transmission insulation body 4221 more compact. This facilitates a compact line distribution within a limited space and improves space utilization. The transmission insulation film 42211 wraps the transmission line 4222 in the middle, and except for the part protruding from the transmission insulation film 42211, the rest is well insulated and protected. This effectively reduces mutual interference between transmission lines 4222 and electrical contact with the external environment, improving the reliability and stability of the entire transmission segment 422. The transmission line 4222 is exposed through the end protruding from the insulation film. The exposed structure of the transmission line 4222 is simple and easy to process and manufacture, which helps to reduce the manufacturing cost of the transmission segment 422. In addition, it also facilitates the connection between the transmission line 4222 and the adapter cable 4212.

[0216] In actual production, the adapter cable 4212 and the transmission line 4222 can be reliably connected by welding, crimping or other methods. The transmission line 4222 facilitates these connection operations through its protruding insulating film design.

[0217] In some embodiments, the plurality of transmission lines 4222 includes a first transmission line 42221 and a second transmission line 42222. The first transmission line 42221 protrudes from the transmission insulating film 42211 by a size a1 that is larger than the second transmission line 42222 protrudes from the transmission insulating film 42211 by a size a2. The first transmission line 42221 is electrically connected to the corresponding adapter cable 4212 through a first adapter opening 42113, and the second transmission line 42222 is electrically connected to the corresponding adapter cable 4212 through a second adapter opening 42114.

[0218] One first transmission line 42221 corresponds to one transmission line 4222, and one second transmission line 42222 corresponds to one transmission line 4222. The number of first transmission lines 42221 can be one or more, and the number of second transmission lines 42222 can be one or more.

[0219] The first transmission line 42221 protrudes from the end of the transmission insulating film 42211, and the size of the first transmission line 42221 protruding from the transmission insulating film 42211 can refer to the length of the first transmission line 42221 protruding from the transmission insulating film 42211; the second transmission line 42222 protrudes from the end of the transmission insulating film 42211, and the size of the second transmission line 42222 protruding from the transmission insulating film 42211 can refer to the length of the second transmission line 42222 protruding from the transmission insulating film 42211.

[0220] By adopting the technical solution of this embodiment, the dimension a1 of the first transmission line 42221 protruding from the transmission insulating film 42211 is larger than the dimension a2 of the second transmission line 42222 protruding from the transmission insulating film 42211. Taking the connector 41 as a reference point, the end of the first transmission line 42221 protruding from the transmission insulating film 42211 is closer to the connector 41 than the end of the second transmission line 42222 protruding from the transmission insulating film 42211. This matches the position of the first transition opening 42113 and the second transition opening 42114, so that after the first transmission line 42221 and the second transmission line 42222 cover the transition section 421, the first transmission line 42221... 221 and the second transmission line 42222 can correspond to the first adapter opening 42113 and the second adapter opening 42114 respectively, which facilitates the connection of the first transmission line 42221 and the second transmission line 42222 with the corresponding adapter cable 4212; in addition, the size a1 of the first transmission line 42221 protruding from the transmission insulating film 42211 is larger than the size a2 of the second transmission line 42222 protruding from the transmission insulating film 42211, which also helps to stagger the connection parts of the adapter cable 4212 and the transmission line 4222, reduce the risk of mutual contact between the connection parts of the adapter cable 4212 and the transmission line 4222, and reduce the risk of short circuit in the signal transmission component 42.

[0221] In some embodiments, there are multiple first transmission lines 42221 and multiple second transmission lines 42222, and the multiple first transmission lines 42221 and multiple second transmission lines 42222 are arranged alternately along a first direction.

[0222] Multiple first transmission lines 42221 and multiple second transmission lines 42222 appear sequentially along the first direction, forming an arrangement pattern of "first transmission line 42221, second transmission line 42222, first transmission line 42221, second transmission line 42222...".

[0223] By adopting the technical solution of this embodiment, multiple first transmission lines 42221 and multiple second transmission lines 42222 are arranged alternately along the first direction, which can effectively reduce the risk of mutual contact between the connection parts of two adjacent adapter lines 4212 and transmission lines 4222, and reduce the risk of short circuit in the signal transmission component 42.

[0224] In some embodiments, the transmission insulation body 4221 includes two transmission insulation films 42211 stacked together, and a transmission line 4222 disposed between the two transmission insulation films 42211. At least one transmission insulation film 42211 is provided with a plurality of transition openings 42112. The plurality of transition openings 42112 are located at the end of the transmission segment 422 near the transition segment 421 and are correspondingly arranged with the plurality of transmission lines 4222. The end of the transmission line 4222 near the transition segment 421 is exposed through the corresponding transition opening 42112 to the transmission insulation film 42211. The transition insulation body 4211 includes two transition insulation films 42111 stacked together, and a plurality of transition lines 4212 disposed between the two transition insulation films 42111. The end of the transition line 4212 near the transmission line 4222 protrudes from the transition insulation film 42111 and is connected to the corresponding transmission line 4222 through the transition opening 42112.

[0225] By adopting the technical solution of this embodiment, the adapter cable 4212 protrudes from the adapter insulating film 42111, thus exposing the adapter cable 4212; the transmission insulating film 42211 has an adapter opening 42112, thus exposing the transmission line 4222, so as to facilitate the electrical connection between the adapter cable 4212 and the transmission line 4222.

[0226] In some embodiments, a transmission insulating adhesive 42214 is provided between the two transmission insulating films 42211, and the transmission insulating adhesive 42214 at least partially fills the space between two adjacent transmission lines 4222.

[0227] Transmission insulating adhesive 42214 can refer to the insulating adhesive filled between two layers of transmission insulating film 42211. Transmission insulating adhesive 42214 can be epoxy resin adhesive, acrylic adhesive, etc. Transmission insulating adhesive 42214 can refer to the insulating adhesive that is filled alone between two layers of transmission insulating film 42211, or it can refer to the adhesive on the back of transmission insulating film 42211 itself.

[0228] A portion of the transmission insulating adhesive 42214 is filled in the gap between two adjacent transmission lines 4222, and another portion of the transmission insulating adhesive 42214 may also be filled in the gap between the transmission line 4222 and the transmission insulating film 42211; or, the transmission insulating adhesive 42214 may be completely filled in the gap between the transmission lines 4222.

[0229] By adopting the technical solution of this embodiment, the transmission insulating adhesive 42214 is filled between two adjacent transmission lines 4222. On the one hand, it can insulate and separate the two adjacent transmission lines 4222, which is also conducive to improving the insulation reliability between transmission lines 4222 with small center distance, and also conducive to realizing a smaller center distance between transmission lines 4222. In addition, the transmission insulating adhesive 42214 filled between two adjacent transmission lines 4222 can form a "support skeleton" to prevent the transmission lines 4222 from shaking between the two layers of transmission insulating film 42211.

[0230] In some embodiments, the transmission line 4222 is crimped or soldered to the corresponding adapter line 4212 through the adapter opening 42112.

[0231] "Crimping" can refer to using mechanical pressure to bring the transmission line 4222 and the adapter line 4212 into close contact, forming an electrical connection.

[0232] In some examples, see Figure 4 As shown, at the end of the transmission line 4222, the adapter opening 42112 directly covers the adapter wire 4212, and then a certain pressure is applied to the transmission line 4222, so that the transmission line 4222 and the adapter wire 4212 are fixedly connected together.

[0233] "Welding" can refer to the process of melting solder (such as solder paste or solder wire) to fill the gap between transmission line 4222 and adapter line 4212, forming a metallurgical bond.

[0234] In some examples, see Figure 5 As shown, the transmission line 4222 and the adapter line 4212 are connected by soldering, which is simple to operate and easy to manufacture.

[0235] By adopting the technical solution of this embodiment, the transmission line 4222 and the adapter line 4212 are connected by crimping or welding, which simplifies the connection operation and helps reduce manufacturing costs.

[0236] In some embodiments, the connection point between the transmission line 4222 and the corresponding adapter line 4212 is coated with insulating adhesive.

[0237] Insulating adhesive refers to a colloid made from insulating materials, such as epoxy resin adhesive or acrylic adhesive. The insulating adhesive can be applied by dotting it onto the connection point between transmission line 4222 and the corresponding adapter line 4212, or a layer of insulating adhesive can be brushed onto the connection point after the adapter section 421 and transmission section 422 are connected. Of course, other methods can also be used in other examples.

[0238] In particular, after the transmission line 4222 and the adapter wire 4212 are connected by crimping, the transmission line 4222 and the adapter wire 4212 are prone to deformation under pressure, which shortens the distance between the connection parts of the transmission line 4222 and the adapter wire 4212, and also shortens the insulation distance between the connection parts of the transmission line 4222 and the adapter wire 4212, which is not conducive to improving the stability of the sampling signal transmission. Alternatively, during the soldering process of the transmission line 4222 and the adapter wire 4212, the solder will flow between two adjacent transmission lines 4222, which will also shorten the insulation distance between the connection parts of the transmission line 4222 and the adapter wire 4212, which is not conducive to improving the stability of the sampling signal transmission.

[0239] By adopting the technical solution of this embodiment, after the transmission line 4222 is connected to the corresponding adapter line 4212, insulating glue is applied to the connection position of the transmission line 4222 and the corresponding adapter line 4212. The insulating glue can be filled between two adjacent transmission lines 4222, thereby insulating and separating the connection part of the transmission line 4222 and the adapter line 4212, improving the insulation performance between the connection part of the transmission line 4222 and the adapter line 4212, reducing the risk of short circuit in the signal transmission component 42, and improving the stability of the sampling signal transmission.

[0240] Figure 11 This is a schematic diagram of the structure of the signal transmission component 42 and the sampling component 43 provided in some embodiments of this application. Figure 12 for Figure 11 A magnified view of a portion of point A in the middle. Figure 13 This is a schematic diagram of the structure of the sampling component 40 provided in some embodiments of this application.

[0241] In some embodiments, the sampling component 43 includes an electrical connector 431, and at least one transmission insulating film 42211 is provided with a sampling opening 42213, which is used to partially expose the transmission line 4222; one end of the electrical connector 431 is electrically connected to the transmission line 4222 through the sampling opening 42213, and the other end of the electrical connector 431 is used to collect sampling signals.

[0242] The sampling opening 42213 can refer to a through-hole in the transmission insulating film 42211, which corresponds to the transmission line 4222, allowing partial exposure of the transmission line 4222 for easy electrical connection to the electrical connector 431. The electrical connector 431 covers the sampling opening 42213 and can be directly electrically connected to the corresponding transmission line 4222. One transmission insulating film 42211 may have a sampling opening 42213, or both transmission insulating films 42211 may have sampling openings 42213. The number of sampling openings 42213 can be one or more.

[0243] The electrical connector 431 can be made of a conductive material, thereby transmitting the acquired sampling signal as an electrical signal to the transmission line 4222, and then to the battery information management component 30. The electrical connector 431 can be a copper sheet, an aluminum sheet, etc.

[0244] In some examples, the electrical connector 431 can be electrically connected to the battery cell 21 to obtain signals such as current and voltage of the battery cell 21; or, the electrical connector 431 is equipped with a temperature sensor to obtain the temperature signal of the battery cell 21.

[0245] An electrical connector 431 can be electrically connected to multiple transmission lines 4222, or it can be electrically connected to a single transmission line 4222.

[0246] In some cases, the preset sampling position of the battery cell 21 is located on the side of the signal transmission component 42. In order to move the preset transmission line 4222 to the preset sampling position of the battery cell 21, the signal transmission component 42 is cut open, the preset transmission line 4222 is separated, and then the separated transmission line 4222 is bent to the side of the signal transmission component 42, so that the end of the transmission line 4222 moves to the preset sampling position. However, there is a risk that the cut position of the signal transmission component 42 may continue to tear and extend, damaging the transmission line 4222, and the bending of the transmission line 4222 may cause it to be exposed.

[0247] By adopting the technical solution of this embodiment, the electrical connector 431 can be electrically connected to the transmission line 4222 through the sampling opening 42213. The sampling signal collected by the electrical connector 431 is then transmitted to the battery information management component 30 via the transmission line 4222. Using the electrical connector 431 for sampling eliminates the need to cut the signal transmission component 42 and bend the transmission line 4222, reducing the risk of the transmission line 4222 being exposed due to bending and reducing the risk of damage to the transmission line 4222.

[0248] In some embodiments, the length of the sampling opening 42213 ranges from 3mm to 10mm, and the width of the sampling opening 42213 ranges from 0.5mm to 2.0mm. This design provides a suitable connection surface for the transmission line 4222 and the electrical connector 431, improving the connection reliability between the transmission line 4222 and the electrical connector 431. In addition, the sampling opening 42213 also has a suitable exposed area, and the transmission section 422 can also have good insulation performance.

[0249] In some embodiments, the electrical connector 431 is crimped or soldered to the transmission line 4222 through the sampling opening 42213.

[0250] By adopting the technical solution of this embodiment, one end of the electrical connector 431 is crimped or welded to the transmission line 4222 through the sampling opening 42213, which simplifies the connection operation and helps to reduce manufacturing costs.

[0251] In some embodiments, one end of the electrical connector 431 along the first direction is electrically connected to the transmission line 4222, and the other end of the electrical connector 431 along the first direction protrudes from the side of the transmission insulating film 42211 and is electrically connected to the battery cell 21.

[0252] By adopting the technical solution of this embodiment, one end of the electrical connecting piece 431 along the first direction covers the transmission section 422, and the other end of the electrical connecting piece 431 along the first direction protrudes from the side of the transmission insulating film 42211. The end of the electrical connecting piece 431 protruding from the side of the transmission insulating film 42211 is electrically connected to the battery cell 21, thereby reducing the influence of the transmission insulating film 42211 on the electrical connection between the electrical connecting piece 431 and the battery cell 21 and improving the reliability of the electrical connection between the electrical connecting piece 431 and the battery cell 21.

[0253] In some embodiments, two adjacent battery cells 21 are electrically connected by a connector 51, and the end of the electrical connector 431 protruding from the transmission insulating film 42211 is welded or snapped onto the connector 51.

[0254] The busbar component 50 may include multiple taps 51, with each end of the tap 51 electrically connected to the electrode terminals of two battery cells 21. The multiple taps 51 can connect the multiple battery cells 21 in series, in parallel, or in a mixed configuration.

[0255] The term "battery plate 51" can refer to a component made of conductive material. Battery plate 51 can be a copper sheet, aluminum sheet, etc.

[0256] The end of the electrical connector 431 that protrudes from the transmission insulating film 42211 can be connected to the plate 51 by welding.

[0257] The end of the electrical connector 431 that protrudes from the transmission insulating film 42211 can be connected to the bar plate 51 by a snap-fit ​​method, such as a snap-fit ​​structure of groove and protrusion, a snap-fit ​​structure of hook and slot, etc.

[0258] See Figure 12 As shown, the electrical connection piece 431 located at the bottom of the figure is snapped into the plate 51, and the electrical connection piece 431 located at the top of the figure is welded to the plate 51.

[0259] By adopting the technical solution of this embodiment, the electrical connecting piece 431 and the bar piece 51 are connected by welding or snap-fitting, which is simple and helps to reduce manufacturing costs.

[0260] In some embodiments, see Figure 4 , Figure 7 , Figure 8 and Figure 13 At least one adapter insulating film 42111 is provided with a plurality of connection openings 42115, and the plurality of connection openings 42115 are correspondingly provided with a plurality of adapter wires 4212. The connection openings 42115 are used to expose the end of the corresponding adapter wire 4212 near the connector 41. The connection terminal 411 is electrically connected to the end of the corresponding adapter wire 4212 near the connector 41 through the connection openings 42115.

[0261] The connection opening 42115 can refer to a through hole in the adapter insulating film 42111, which corresponds to the end of the adapter cable 4212 near the connector 41, so that the end of the adapter cable 4212 near the connector 41 is exposed for easy connection to the connection terminal 411. The connection terminal 411 covers the connection opening 42115, and the connection terminal 411 and the corresponding adapter cable 4212 can be directly electrically connected. One adapter insulating film 42111 has a connection opening 42115, or both adapter insulating films 42111 have connection openings 42115. Multiple connection openings 42115 are provided one-to-one with multiple adapter cables 4212.

[0262] In some examples, multiple connection openings 42115 are arranged at intervals along a first direction to form a row of connection openings 42115 to facilitate electrical connection with multiple connection terminals 411 within the connector 41.

[0263] By adopting the technical solution of this embodiment, the connection terminal 411 can be electrically connected to the adapter cable 4212 through the connection opening 42115. The connection method is simple and helps to reduce manufacturing costs.

[0264] In some embodiments, the connection terminal 411 is crimped or soldered to the end of the adapter cable 4212 near the connector 41 through the connection opening 42115.

[0265] In some examples, see Figure 4 As shown, the connecting terminal 411 of the piercing connector can directly pierce the transition insulating film 42111 and come into contact with the transmission line 4222 to achieve electrical connection; the opening formed by the connecting terminal 411 piercing the transition insulating film 42111 is the connecting opening 42115.

[0266] In some examples, see Figure 13 As shown, the adapter insulating film 42111 first has a connection opening 42115, and the connection terminal 411 of the SMT connector is directly soldered to the adapter cable 4212 through the connection opening 42115.

[0267] By adopting the technical solution of this embodiment, the connection terminal 411 and the adapter cable 4212 are connected by crimping or soldering. The connector 41 can serve as a signal output port and can be directly plugged into the battery information management component 30 without the need for additional adapter cable bundles 4212, thus saving connection costs between the sampling component 40 and the battery information management component 30. In addition, the crimping or soldering connection operation is simple and helps to reduce the manufacturing cost of the sampling component 40.

[0268] In some embodiments, at least one of the switching segment 421 and the transmission segment 422 is a flexible line segment.

[0269] Flexible circuit segments can refer to circuit boards that are bent, folded, or twisted to a certain extent. Flexible circuit segments can be flexible printed circuit boards (FPCs), flexible flat cables (FFCs), etc.

[0270] One of the switching section 421 and the transmission section 422 is a flexible line segment; or, both the switching section 421 and the transmission section 422 are flexible line segments.

[0271] By adopting the technical solution of this embodiment, at least one of the transition section 421 and the transmission section 422 adopts the structure of a flexible line segment. The flexible line segment can be bent, folded or twisted to a certain extent without affecting its electrical performance. The flexible line segment can adapt to various complex spatial layouts and shape requirements, and can better fit the internal structure of the battery device 100, saving space.

[0272] In some embodiments, the battery device 100 includes a battery information component, a battery cell assembly 20, and a sampling component 40. The battery cell assembly 20 includes a plurality of battery cells 21. The sampling component 40 includes a connector 41, a signal transmission component 42, and a sampling component 43. The connector 41 is used for electrical connection with the battery information management component 30 and has a plurality of connection terminals 411 spaced apart. The sampling component 43 is used to collect sampling signals from the battery cells 21. The signal transmission component 42 includes a transition section 421 and a transmission section 422. The transition section 421 includes a transition insulation body 4211 and a plurality of transition wires 4212 spaced apart within the transition insulation body 4211. The transmission section 422 includes a transmission insulation body 4221 and a plurality of transmission wires 4212 spaced apart within the transmission insulation body 4211. Multiple transmission lines 4222 are located within the main body 4221 and are electrically connected to the sampling component 43. One end of multiple adapter wires 4212 is electrically connected to multiple connection terminals 411, and the other end of the multiple adapter wires 4212 is electrically connected to one end of the multiple transmission lines 4222. The center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter segment 421 near the connector 41 is greater than the center distance L2 between two adjacent transmission lines 4222, so that the dimension W1 of the transmission segment 422 along the first direction is smaller than the dimension W2 of the end of the adapter segment 421 near the connector 41 along the second direction. The first direction is the arrangement direction of the multiple transmission lines 4222, and the second direction is the arrangement direction of the multiple adapter wires 4212 at the end of the adapter segment 421 near the connector 41.

[0273] In this embodiment, along the third direction, the dimension W1 of the transmission segment 422 along the first direction remains unchanged. The first direction is perpendicular to the thickness direction of the transmission segment 422, and the third direction is perpendicular to both the first direction and the thickness direction of the transmission segment 422.

[0274] In this embodiment, the size of the transition section 421 increases incrementally along the first direction in the direction from the transmission section 422 to the connector 41.

[0275] In this embodiment, multiple transmission lines 4222 are arranged in parallel at intervals.

[0276] In this embodiment, the center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter section 421 near the connector 41 is greater than the center distance L3 between two adjacent adapter wires 4212 located at the end of the adapter wire 4212 near the transmission line 4222.

[0277] In this embodiment, the center distance L3 between two adjacent transition lines 4212 located at the end of the transition section 421 near the transmission line 4222 is equal to the center distance L2 between two adjacent transmission lines 4222.

[0278] In this embodiment, the center distance L1 between two adjacent adapter wires 4212 located at the end of the adapter section 421 near the connector 41 is equal to the center distance L4 between two adjacent connection terminals 411.

[0279] In this embodiment, the center distance between two adjacent adapter cables 4212 is increased along the direction from the transmission segment 422 to the connector 41.

[0280] In some embodiments, the electrical device includes the battery device 100 described above.

[0281] By adopting the technical solution of this embodiment, the power device uses the battery device 100 described above. The sampling component 40 in the battery device 100 has a low manufacturing cost, which helps to reduce the manufacturing cost of the power device.

[0282] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0283] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that, include: Battery information management component; A battery cell assembly, comprising multiple battery cells; The sampling component includes a connector, a signal transmission component, and a sampling component. The connector is used for electrical connection with the battery information management component and has multiple connection terminals arranged at intervals. The sampling component is used for acquiring the sampling signal of the battery cell. The signal transmission component includes a switching section and a transmission section. The switching section includes a switching insulating body and a plurality of switching wires spaced apart within the switching insulating body. The transmission section includes a transmission insulating body and a plurality of transmission lines spaced apart within the transmission insulating body. The transmission lines are electrically connected to the sampling component. One end of the plurality of switching wires is electrically connected to a plurality of connection terminals, and the other end of the plurality of switching wires is electrically connected to one end of the plurality of transmission lines. The center distance between two adjacent adapter wires located at the end of the adapter segment near the connector is greater than the center distance between two adjacent transmission lines, such that the dimension of the transmission segment along the first direction is smaller than the dimension of the end of the adapter segment near the connector along the second direction, where the first direction is the arrangement direction of the plurality of transmission lines and the second direction is the arrangement direction of the plurality of adapter wires at the end of the adapter segment near the connector.

2. The battery device according to claim 1, characterized in that, The center-to-center distance between two adjacent transmission lines is in the range of 1.0 mm to 1.8 mm.

3. The battery device according to claim 2, characterized in that, The center-to-center distance between two adjacent transmission lines is between 1.1 mm and 1.5 mm.

4. The battery device according to claim 1, characterized in that, Along the third direction, the dimension of the transmission segment remains unchanged along the first direction, the first direction is perpendicular to the thickness direction of the transmission segment, and the third direction is perpendicular to both the first direction and the thickness direction of the transmission segment.

5. The battery device according to claim 1, characterized in that, Along the direction from the transmission segment to the connector, the size of the adapter segment increases incrementally along the first direction.

6. The battery device according to any one of claims 1 to 5, characterized in that, The multiple transmission lines are arranged in parallel at intervals.

7. The battery device according to any one of claims 1 to 5, characterized in that, The center-to-center distance between two adjacent adapter wires located at the end of the adapter section near the connector is greater than the center-to-center distance between two adjacent adapter wires located at the end of the adapter wire near the transmission line.

8. The battery device according to claim 7, characterized in that, The center-to-center distance between two adjacent adapter wires located near the end of the adapter section close to the transmission line is equal to the center-to-center distance between two adjacent transmission lines.

9. The battery device according to claim 7, characterized in that, The center-to-center distance between two adjacent adapter wires located at the end of the adapter section near the connector is equal to the center-to-center distance between two adjacent connection terminals.

10. The battery device according to claim 7, characterized in that, Along the direction from the transmission segment to the connector, the center distance between two adjacent adapter cables located at least in the middle of the adapter segment increases progressively.

11. The battery device according to any one of claims 1 to 4, characterized in that, The transmission section and the switching section are separate structures.

12. The battery device according to claim 11, characterized in that, The end of the adapter cable near the transmission line is exposed in the adapter insulation body, and the end of the transmission line near the adapter cable is exposed in the transmission insulation body. The end of the adapter cable exposed in the adapter insulation body is electrically connected to the end of the transmission line exposed in the transmission insulation body.

13. The battery device according to claim 12, characterized in that, The adapter insulation body includes two adapter insulation films stacked together, a plurality of adapter wires disposed between the two layers of adapter insulation films, at least one adapter insulation film having a plurality of adapter openings, the plurality of adapter openings being located at the end of the adapter segment near the transmission line and corresponding to the plurality of adapter wires one by one, the end of the adapter wire near the transmission line being exposed to the adapter insulation film through the corresponding adapter opening.

14. The battery device according to claim 13, characterized in that, The plurality of adapter openings include a first adapter opening and a second adapter opening, the first adapter opening and the second adapter opening being offset from each other along the first direction, and the first adapter opening being closer to the connector than the second adapter opening.

15. The battery device according to claim 14, characterized in that, The number of first adapter openings and the number of second adapter openings are multiple. The multiple first adapter openings are arranged at intervals along the first direction, the multiple second adapter openings are arranged at intervals along the first direction, and the multiple first adapter openings and the multiple second adapter openings are alternately distributed along the first direction.

16. The battery device according to claim 14, characterized in that, The first and second transition openings are spaced apart along a third direction, the first direction being perpendicular to the thickness direction of the transition insulation body, and the third direction being perpendicular to both the first direction and the thickness direction of the transition insulation body.

17. The battery device according to claim 14, characterized in that, The transmission insulation body includes two transmission insulation films stacked together, and a plurality of transmission lines are disposed between the two layers of transmission insulation films. The end of the transmission line near the adapter cable protrudes from the transmission insulation film and is connected to the corresponding adapter cable through the adapter opening.

18. The battery device according to claim 17, characterized in that, The plurality of transmission lines include a first transmission line and a second transmission line, wherein the first transmission line protrudes from the transmission insulating film by a larger dimension than the second transmission line protrudes from the transmission insulating film, the first transmission line is connected to the corresponding adapter cable through the first adapter opening, and the second transmission line is electrically connected to the corresponding adapter cable through the second adapter opening.

19. The battery device according to claim 18, characterized in that, There are multiple first transmission lines and multiple second transmission lines, and the multiple first transmission lines and multiple second transmission lines are arranged alternately along the first direction.

20. The battery device according to claim 12, characterized in that, The transmission insulation body includes two transmission insulation films stacked together. The transmission line is disposed between the two transmission insulation films. At least one of the transmission insulation films is provided with multiple transition openings. The multiple transition openings are located at the end of the transmission segment near the transition segment and are provided in correspondence with the multiple transmission lines. The end of the transmission line near the transition segment is exposed to the transmission insulation film through the corresponding transition opening. The adapter insulation body includes two stacked adapter insulation films, and a plurality of adapter wires are disposed between the two layers of adapter insulation films. The end of the adapter wire near the transmission line protrudes from the adapter insulation film and is connected to the corresponding transmission line through the adapter opening.

21. The battery device according to claim 17, characterized in that, A transmission insulating adhesive is provided between the two layers of the transmission insulating film, and the transmission insulating adhesive at least partially fills the space between two adjacent transmission lines.

22. The battery device according to claim 17, characterized in that, The sampling component includes an electrical connector, at least one of the transmission insulating films has a sampling opening, the sampling opening is used to partially expose the transmission line; one end of the electrical connector is electrically connected to the transmission line through the sampling opening, and the other end of the electrical connector is used to collect the sampling signal.

23. The battery device according to claim 22, characterized in that, The electrical connector is crimped or soldered to the transmission line through the sampling opening.

24. The battery device according to claim 22, characterized in that, One end of the electrical connector along the first direction is electrically connected to the transmission line, and the other end of the electrical connector along the first direction protrudes from the side of the transmission insulation film and is electrically connected to the battery cell.

25. The battery device according to claim 24, characterized in that, Two adjacent battery cells are electrically connected by a connector plate, and the end of the connector plate protruding from the transmission insulation film is welded or snapped onto the connector plate.

26. The battery device according to claim 13, characterized in that, A transfer insulating adhesive is provided between the two layers of the transfer insulating film, and the transfer insulating adhesive at least partially fills the space between the two adjacent transfer lines.

27. The battery device according to claim 13, characterized in that, The transmission line is crimped or soldered to the corresponding adapter cable through the adapter opening.

28. The battery device according to claim 13, characterized in that, The connection between the transmission line and the corresponding adapter cable is coated with insulating adhesive.

29. The battery device according to claim 13, characterized in that, At least one of the adapter insulating films is provided with a connection opening for exposing the end of the adapter cable near the connector, and the connection terminal is electrically connected to the end of the adapter cable near the connector through the connection opening.

30. The battery device according to claim 29, characterized in that, The connecting terminal is crimped or soldered to the end of the adapter cable near the connector through the connecting opening.

31. The battery device according to any one of claims 1 to 4, characterized in that, At least one of the switching section and the transmission section is a flexible line segment.

32. An electrical appliance, characterized in that, The battery device includes any one of claims 1 to 31.

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