Battery device, sampling components and power supply device

Abstract

This utility model discloses a battery device, a sampling component, and an electrical device, relating to the field of battery technology. The battery device includes a battery cell and a sampling component. The sampling component includes a board body and sampling terminals. The board body includes a circuit area and an isolation area arranged along a first direction. The edge area of ​​the board body is set as the isolation area. The circuit area has sampling lines, and the isolation area has a reinforcing structure. The sampling terminals are disposed across the isolation area along the first direction. One end of the sampling terminals is electrically connected to the sampling lines, and the other end of the sampling terminals is electrically connected to the battery cell. The technical solution of this application can ensure the stable performance of the sampling function in the battery device.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery device, a sampling component, and an electrical device. Background Technology

[0002] Currently, in battery devices, the battery management system needs to sample and monitor information such as battery voltage through sampling components. The sampling components are usually connected to the battery cells through flexible circuit sampling boards. However, when the flexible circuit sampling board is twisted, the edges are easily torn, which can damage the sampling circuit and cause voltage and temperature sampling failure. Utility Model Content

[0003] The main purpose of this invention is to provide a battery device, a sampling component, and a power supply device, which aims to ensure the stable performance of the sampling function in the battery device.

[0004] To achieve the above objectives, the present invention proposes a battery device comprising a battery cell and a sampling component, wherein the sampling component comprises:

[0005] The board body includes a circuit area and an isolation area arranged along a first direction. The edge region of the board body is set as the isolation area. The circuit area is provided with sampling lines, and the isolation area is provided with a reinforcing structure.

[0006] A sampling terminal is provided across the isolation area along the first direction. One end of the sampling terminal is electrically connected to the sampling line, and the other end of the sampling terminal is electrically connected to the battery cell.

[0007] The technical solution of this application provides a reinforcing structure in the edge area of ​​the main body of the board. The reinforcing structure has good structural strength and is not easy to tear, thereby preventing the main body of the board from tearing from the edge to the circuit area, so as to avoid damaging the sampling lines in the circuit area and ensure the stable performance of the sampling function in the battery device.

[0008] In one embodiment, the board body includes an insulating structure, and the sampling line and the reinforcing structure are built into the insulating structure.

[0009] This design avoids the reinforcement structure being directly exposed on the surface of the main body of the board, which could easily break or wear. It ensures that the reinforcement structure can prevent the main body of the board from tearing, thus ensuring the stable performance of the sampling function. Furthermore, when the reinforcement structure is made of metal, it can avoid electrical risks such as creepage and short circuits in the battery device.

[0010] In one embodiment, the insulating structure includes at least two layers of insulating film stacked together, with the sampling line and the reinforcing structure located between the same two layers of insulating film.

[0011] This setup places the sampling circuit and reinforcement structure between the same two insulating films, allowing all components of the board body to be integrated simultaneously, making the fabrication of the board body more convenient.

[0012] In one embodiment, the insulating structure includes at least three layers of insulating film stacked together, with a wiring layer formed between any two layers of the insulating film, and the sampling line and the reinforcing structure located on different wiring layers.

[0013] This setup, employing at least three layers of insulating film to form an insulating structure, enhances the structural strength of the insulation and helps reduce the risk of tearing at the edges of the board. Furthermore, by placing the sampling lines and reinforcement structures in different wiring layers, and when using metal materials for the reinforcement structures, it is ensured that the reinforcement structures and sampling lines are mutually insulated, avoiding short circuits or other electrical risks.

[0014] In one embodiment, at least a portion of the reinforcing structure is disposed on the surface of the isolation region.

[0015] This setup avoids damage to the sampling circuit during the fabrication of the reinforcement structure. Furthermore, by placing the reinforcement structure on the surface of the isolation area, the design of the reinforcement structure can be more flexible. Different fabrication methods can be used to form the reinforcement structure, and the thickness and shape of the reinforcement structure can also be adjusted.

[0016] In one embodiment, the reinforcing structure is made of metal.

[0017] This design provides the reinforcement structure with good structural strength and toughness, as well as good tear resistance, reducing the risk of the reinforcement structure breaking and thus effectively preventing damage to the sampling lines in the circuit area, ensuring the stable performance of the sampling function.

[0018] In one embodiment, the reinforcing structure is made of copper.

[0019] This design leverages the excellent ductility and toughness of copper to provide good tear resistance. Furthermore, when the reinforcing structure is bonded to the main body of the plate using a lamination method, it also prevents the reinforcing structure from breaking during the lamination process.

[0020] In one embodiment, the reinforcing structure is spaced apart from the edge of the plate body.

[0021] This setup utilizes the insulating material between the reinforcing structure and the edge of the main board as a buffer to prevent the reinforcing structure from easily breaking due to stress concentration at the edge of the main board when it is bent or twisted. This reduces the force on the reinforcing structure and thus better prevents the risk of the main board tearing into the circuit area.

[0022] In one embodiment, the reinforcing structure is located at the edge of the plate body.

[0023] This design enhances the structural strength of the panel's edges through reinforcement, reducing the risk of tearing the edges and maintaining the overall structural integrity of the panel, making it less prone to damage.

[0024] This utility model also proposes a sampling component, the sampling component comprising:

[0025] The board body includes a circuit area and an isolation area arranged along a first direction. The edge region of the board body is set as the isolation area. The circuit area is provided with sampling lines, and the isolation area is provided with a reinforcing structure.

[0026] A sampling terminal, one end of which is connected to the board body and electrically connected to the sampling line, and the other end of which is used to electrically connect to a battery cell.

[0027] This application provides a reinforcing structure in the edge area of ​​the main board body. The reinforcing structure has good structural strength and is not easy to tear, thereby preventing the main board body from tearing from the edge to the circuit area, so as to avoid damaging the sampling lines in the circuit area and ensure the stable performance of the sampling function in the battery device.

[0028] This utility model also proposes an electrical device, including a battery device as described in any of the preceding claims.

[0029] By using the battery device described in the foregoing embodiments in the electrical device, the voltage and temperature signals of the battery cells can be effectively transmitted and collected. This allows for thermal management and / or safety management of the battery cells based on the sampled signals, ensuring the stable performance of the electrical device. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a vehicle provided according to some embodiments of this application;

[0032] Figure 2 This is a schematic diagram of the structure of a battery device provided according to some embodiments of this application;

[0033] Figure 3This is a schematic diagram of the structure of a sampling component provided according to some embodiments of this application;

[0034] Figure 4 This is a partial enlarged view of a sampling component provided according to some embodiments of this application.

[0035] Explanation of icon numbers:

[0036] 1000. Vehicle; 100. Electrical device; 10. Battery cell; 20. Sampling assembly; 21. Main board; 21a. Circuit area; 21b. Isolation area; 211. Sampling circuit; 212. Reinforcing structure; 213. Insulation structure; 22. Sampling terminal; 23. Connection terminal; 30. Housing; 31. Upper shell; 32. Lower shell;

[0037] X, first direction; Y, second direction; 200, controller; 300, motor.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0040] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0043] In related technologies, battery devices are equipped with individual battery cells, sampling components, and a battery management system. The battery management system is a system for monitoring and managing the battery device. It is connected to the individual battery cells through the sampling components, which can collect temperature and voltage information of each individual battery cell. By collecting and calculating parameters such as voltage, current, temperature, and SOC of the individual battery cells, the charging and discharging process of the battery device is controlled.

[0044] Currently, in battery devices, the battery management system needs to sample and monitor information such as battery voltage through sampling components. The sampling components are usually connected to the battery cells through flexible circuit sampling boards. However, when the flexible circuit sampling board is twisted, the edges are easily torn, which can damage the sampling circuit and cause voltage and temperature sampling failure.

[0045] Based on the above considerations, this application proposes a battery device, which includes a battery cell 10 and a sampling assembly 20. The sampling assembly 20 includes a board body 21 and sampling terminals 22. The board body 21 has a circuit area 21a and an isolation area 21b arranged along a first direction X. The edge area of ​​the board body 21 is set as the isolation area 21b. The circuit area 21a is provided with a sampling line 211, and the isolation area 21b is provided with a reinforcing structure 212. The sampling terminals 22 are arranged across the isolation area 21b along the first direction X. One end of the sampling terminals 22 is electrically connected to the sampling line 211, and the other end of the sampling terminals 22 is electrically connected to the battery cell 10.

[0046] With this battery device, the reinforcing structure 212 located at the edge of the main body 21 has good structural strength and is not easily torn, thus preventing the main body 21 from tearing from the edge to the circuit area 21a, thereby avoiding damage to the sampling line 211 in the circuit area 21a and ensuring the stable performance of the sampling function in the battery device.

[0047] In this embodiment, the electrical device 100 refers to a device that uses a battery to provide electrical energy, and may be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys may include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0048] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device 100 according to an embodiment of this application.

[0049] 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 is installed inside the vehicle 1000, and the battery can be located at the bottom, front, or rear of the vehicle 1000. The battery can be used to power the vehicle 1000; for example, the battery 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 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0050] In some embodiments of this application, the battery device can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0051] Please refer to Figure 2 , Figure 2This is an exploded view of a battery device provided in some embodiments of this application. The battery device, serving as a power source or power system for the electrical device 100, is a single physical module comprising one or more battery cells 10, capable of providing higher voltage and capacity. The battery device includes a housing 30 and battery cells 10, with the battery cells 10 housed within the housing 30. The housing 30 provides space for the battery cells 10 and can employ various structures. In some embodiments, the housing 30 may include an upper shell 31 and a lower shell 32, wherein the upper shell 31 is connected to the lower shell 32, and the battery cells 10 are disposed within the cavity formed by the connection of the upper shell 31 and the lower shell 32.

[0052] In a battery device, there can be multiple battery cells 10, which can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 10 are connected in both series and parallel configurations. A battery cell 10 is the smallest unit for storing and outputting electrical energy. Multiple battery cells 10 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 10 is housed within a battery box. Alternatively, the battery device can consist of multiple battery cells 10 first connected in series, parallel, or in a mixed configuration to form a battery cell 10 assembly, and then the battery cell 10 assemblies are connected in series, parallel, or in a mixed configuration to form a whole, which is then housed within a battery box. The battery device may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 10.

[0053] The battery cell 10 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 10 can be cylindrical, flat, cuboid, or other shapes.

[0054] According to some embodiments of this application, the battery device provided by this application includes a battery cell 10 and a sampling assembly 20; please refer to Figure 3 and Figure 4 The sampling assembly 20 includes a board body 21 and sampling terminals 22. The board body 21 includes a circuit area 21a and an isolation area 21b arranged along the first direction X. The isolation area 21b is the edge area of ​​the board body 21. The circuit area 21a is provided with a sampling line 211, and the isolation area 21b is provided with a reinforcing structure 212. The sampling terminals 22 are arranged across the isolation area 21b along the first direction X. One end of the sampling terminals 22 is electrically connected to the sampling line 211, and the other end of the sampling terminals 22 is electrically connected to the battery cell 10.

[0055] As shown in the figure, the first direction X is the width direction of the board body 21, and the second direction Y is the length direction of the board body 21. In this embodiment, the board body 21 of the sampling component 20 is a flexible circuit board, and the flexible circuit board is provided with sampling lines 211. The sampling lines 211 are conductive structures arranged in the board body 21, and can be made of copper or other metal materials. The board body 21 is also used to connect to the battery management system.

[0056] One end of the sampling terminal 22 is connected to the board body 21, and the other end extends away from the board body 21 for connecting to the battery cell 10. Furthermore, the sampling terminal 22 spans the isolation region 21b, so that a portion of the structure of the sampling terminal 22 is connected to the circuit region 21a and electrically connected to the sampling line 211 in the circuit region 21a. The sampling terminal 22 can collect the status information of the battery cell 10 and transmit the sampling information to the board body 21, which then transmits the sampling information to the battery management system. In some embodiments, a temperature detection unit can be provided on the sampling terminal 22 for collecting the battery temperature information.

[0057] In this embodiment, the board body 21 includes a circuit area 21a and an isolation area 21b arranged along a first direction X. The circuit area 21a is provided with sampling lines 211. The isolation area 21b is located at the edge region of the board body 21 along the first direction X. The isolation area 21b can be provided on one side of the circuit area 21a, or two isolation areas 21b can be provided on both sides of the circuit area 21a respectively. A reinforcing structure 212 is provided in the isolation area 21b. The reinforcing structure 212 extends along a second direction Y perpendicular to the first direction X. The reinforcing structure 212 can improve the structural strength of the arrangement area, making the location where the reinforcing structure 212 is provided less prone to tearing. It is understood that the board body 21 includes an insulating structure 213 for covering the sampling lines 211. The reinforcing structure 212 can be made of other materials with higher structural strength and toughness than the insulating structure 213. The reinforcing structure 212 can also be made of the same material as the insulating structure 213 or a material with similar structural strength. The reinforcing structure 212 enhances the thickness of the arrangement area to improve the structural strength.

[0058] By setting the reinforcing structure 212, this application improves the structural strength of the area where the reinforcing structure 212 is arranged, making the area less prone to tearing. This prevents the board body 21 from tearing from the edge to the circuit area 21a, thereby avoiding damage to the sampling line 211 in the circuit area 21a and ensuring the stable performance of the sampling function in the battery device.

[0059] Optionally, the sampling component 20 can be configured as an FCC (Flexible Flat Cable Connect Flexible Die-Cut Circuit). The board body 21 is configured as an FFC (Flexible Flat Cable), and the sampling terminals 22 can be, but are not limited to, an FPC (Flexible Printed Circuit), an FDC (Flexible Die-cutting Circuit), or other structures. The sampling terminals 22 and the board body 21 can be connected via soldering, riveting, or adhesive bonding. Of course, in some embodiments, the board body 21 can also be configured as an FPC (Flexible Printed Circuit).

[0060] Optionally, the sampling component 20 is provided with multiple sampling terminals 22 connected to the board body 21, so that multiple battery cells 10 are connected to the same sampling component 20. In some embodiments, the battery device further includes a bus, which is electrically connected to two or more battery cells 10, and the sampling terminals 22 are connected to the bus. By setting the bus, it can be connected to multiple battery cells 10, realizing the series and parallel connection of battery cells 10, and the status information of multiple battery cells 10 can be collected simultaneously.

[0061] Please refer to Figure 4 According to some embodiments of this application, the board body 21 has two isolation regions 21b, and the circuit region 21a is located between the two isolation regions 21b.

[0062] This configuration improves the structural strength of both isolation zones 21b on both sides of the board body 21 along the first direction X, thereby effectively preventing the board body 21 from tearing into the circuit area 21a.

[0063] Please refer to Figure 3 and Figure 4 According to some embodiments of this application, the sampling component 20 further includes a connection terminal 23, which is disposed at one end of the board body 21 along the second direction Y and is electrically connected to the sampling line 211. The second direction Y is perpendicular to the first direction X.

[0064] In this embodiment, the connection terminal 23 can be used for electrical connection with the battery management system; the connection terminal 23 can be configured as a through-hole connector, or as a gold finger or other structure. Connecting to the battery management system via the connection terminal 23 is convenient, eliminating the need for a wiring harness between the sampling component 20 and the battery management system, improving ease of use, and reducing wiring space.

[0065] Please refer to Figure 4According to some embodiments of this application, the board body 21 includes an insulating structure 213, and the sampling line 211 and the reinforcing structure 212 are built into the insulating structure 213.

[0066] This design, with the reinforcing structure 212 embedded, avoids the reinforcing structure 212 being directly exposed on the surface of the board body 21, which would make it prone to breakage or wear. It ensures that the reinforcing structure 212 can effectively prevent tearing of the board body 21, thus ensuring the stable performance of the sampling function. Furthermore, it improves the overall structural stability of the board body 21, preventing the reinforcing structure 212 from detaching from it. In some embodiments, the reinforcing structure 212 is made of metal, and embedding it within insulating material avoids electrical risks such as creepage and short circuits in the battery device.

[0067] In this embodiment, the board body 21 can be configured as a flexible flat cable (FFC), which uses an insulating structure 213 to wrap multiple conductors and forms a flat cable by pressing; wherein the conductors can be copper wire or other metal materials to form the sampling line 211.

[0068] According to some embodiments of this application, the insulating structure 213 includes at least two layers of insulating film stacked together, with the sampling line 211 and the reinforcing structure 212 located between the same two layers of insulating film.

[0069] In this embodiment, the insulating structure 213 may include two, three, or more layers of insulating film stacked together. The insulating film may be, but is not limited to, PET film and polyimide film. In specific applications, the reinforcing structure 212 and the conductor used to form the sampling line 211 are placed between two layers of insulating film. After pressing, the reinforcing structure 212 and the sampling line 211 are integrated with the insulating film to form the board body 21. By placing the sampling line 211 and the reinforcing structure 212 between the same two layers of insulating film, all components of the board body 21 can be simultaneously integrated, making the fabrication of the board body 21 more convenient.

[0070] According to some embodiments of this application, the insulating structure 213 includes at least three layers of insulating film stacked together, with a wiring layer formed between any two layers of insulating film, and the sampling line 211 and the reinforcing structure 212 located in different wiring layers.

[0071] In this embodiment, at least three layers of insulating film are used to form the insulating structure 213, which can improve the structural strength of the insulating structure 213 and help reduce the risk of tearing at the edge of the board body 21. Furthermore, by placing the sampling line 211 and the reinforcing structure 212 in different wiring layers, and by using metal materials to make the reinforcing structure 212, it can be ensured that the reinforcing structure 212 and the sampling line 211 are mutually insulated, avoiding short circuits or other electrical risks.

[0072] According to some embodiments of this application, at least a portion of the reinforcing structure 212 is disposed on the surface of the isolation region 21b.

[0073] In this embodiment, a reinforcing structure 212 can be provided on the surface of the main body 21 by means of bonding, pressing, or other methods. The reinforcing structure 212 can be formed of a material with good toughness and structural strength. Optionally, in order to avoid creepage problems, the reinforcing structure 212 can be made of an insulating material, or the reinforcing structure 212 can include a metal inner layer and an insulating layer covering the metal inner layer.

[0074] This setup avoids damage to the sampling line 211 during the fabrication of the reinforcing structure 212. Furthermore, by placing the reinforcing structure 212 on the surface of the isolation region 21b, the design of the reinforcing structure 212 can be more flexible. Different fabrication methods can be used to form the reinforcing structure 212, and the thickness and shape of the reinforcing structure 212 can also be adjusted.

[0075] According to some embodiments of this application, the reinforcing structure 212 is made of metal.

[0076] In this embodiment, the reinforcing structure 212 can be made of copper, copper alloy or other metal materials. With this arrangement, the reinforcing structure 212 has good structural strength and toughness, and good tear resistance. This can reduce the risk of the reinforcing structure 212 breaking, thereby effectively preventing damage to the sampling line 211 in the circuit area 21a and ensuring the stable performance of the sampling function.

[0077] According to one embodiment of this application, the material of the reinforcing structure 212 is copper.

[0078] In this embodiment, the good ductility and toughness of copper can play a good role in preventing tearing, and when the reinforcing structure 212 is bonded to the main body 21 of the plate by pressing, the reinforcing structure 212 can also be prevented from breaking during the pressing process.

[0079] Please refer to Figure 4 According to some embodiments of this application, the reinforcing structure 212 is spaced apart from the edge of the plate body 21.

[0080] This configuration utilizes the insulating material between the reinforcing structure 212 and the edge of the board body 21 as a buffer to avoid the problem of the reinforcing structure 212 being prone to breakage due to stress concentration at the edge of the board body 21 when the board body 21 is bent or twisted. This reduces the force on the reinforcing structure 212 and thus better prevents the risk of the board body 21 tearing to the circuit area 21a.

[0081] According to some embodiments of this application, the reinforcing structure 212 is located at the edge of the plate body 21.

[0082] This arrangement enhances the structural strength of the edges of the main body 21 by reinforcing the structure 212, reducing the risk of tearing the edges of the main body 21 and maintaining the overall structural integrity of the main body 21, making it less prone to damage. Optionally, the reinforcing structure 212 can be configured to cover the main edge of the main body 21, or it can be attached to one side surface, or it can be located on the inner side of the main body 21.

[0083] Please refer to Figure 3 and Figure 4 The present invention also proposes a sampling component 20, which includes a board body 21 and a sampling terminal 22. The board body 21 includes a circuit area 21a and an isolation area 21b arranged along a first direction X. The edge area of ​​the board body 21 is set as the isolation area 21b. The circuit area 21a is provided with a sampling line 211, and the isolation area 21b is provided with a reinforcing structure 212. The sampling terminal 22 is arranged across the isolation area 21b along the first direction X. One end of the sampling terminal 22 is electrically connected to the sampling line 211, and the other end of the sampling terminal 22 is electrically connected to the battery cell 10.

[0084] As shown in the figure, the first direction X is the width direction of the board body 21, and the second direction Y is the length direction of the board body 21. In this embodiment, the board body 21 of the sampling component 20 is a flexible circuit board, and the flexible circuit board is provided with sampling lines 211. The sampling lines 211 are conductive structures arranged in the board body 21, and can be made of copper or other metal materials. The board body 21 is also used to connect to the battery management system.

[0085] One end of the sampling terminal 22 is connected to the board body 21, and the other end extends away from the board body 21 for connecting to the battery cell 10. Furthermore, the sampling terminal 22 spans the isolation region 21b, so that a portion of the structure of the sampling terminal 22 is connected to the circuit region 21a and electrically connected to the sampling line 211 in the circuit region 21a. The sampling terminal 22 can collect the status information of the battery cell 10 and transmit the sampling information to the board body 21, which then transmits the sampling information to the battery management system. In some embodiments, a temperature detection unit can be provided on the sampling terminal 22 for collecting the battery temperature information.

[0086] In this embodiment, the board body 21 includes a circuit area 21a and an isolation area 21b arranged along a first direction X. The circuit area 21a is provided with sampling lines 211. The isolation area 21b is located at the edge region of the board body 21 along the first direction X. The isolation area 21b can be provided on one side of the circuit area 21a, or two isolation areas 21b can be provided on both sides of the circuit area 21a respectively. A reinforcing structure 212 is provided in the isolation area 21b. The reinforcing structure 212 extends along a second direction Y perpendicular to the first direction X. The reinforcing structure 212 can improve the structural strength of the arrangement area, making the location where the reinforcing structure 212 is provided less prone to tearing. It is understood that the board body 21 includes an insulating structure 213 for covering the sampling lines 211. The reinforcing structure 212 can be made of other materials with higher structural strength and toughness than the insulating structure 213. The reinforcing structure 212 can also be made of the same material as the insulating structure 213 or a material with similar structural strength. The reinforcing structure 212 enhances the thickness of the arrangement area to improve the structural strength.

[0087] By setting the reinforcing structure 212, this application improves the structural strength of the area where the reinforcing structure 212 is arranged, making the area less prone to tearing. This prevents the board body 21 from tearing from the edge to the circuit area 21a, thereby avoiding damage to the sampling line 211 in the circuit area 21a and ensuring the stable performance of the sampling function in the battery device.

[0088] Optionally, the sampling component 20 can be configured as an FCC (Flexible Flat Cable Connect Flexible Die-Cut Circuit). The board body 21 is configured as an FFC (Flexible Flat Cable), and the sampling terminals 22 can be, but are not limited to, an FPC (Flexible Printed Circuit), an FDC (Flexible Die-cutting Circuit), or other structures. The sampling terminals 22 and the board body 21 can be connected via soldering, riveting, or adhesive bonding. Of course, in some embodiments, the board body 21 can also be configured as an FPC (Flexible Printed Circuit).

[0089] Optionally, the sampling component 20 is provided with multiple sampling terminals 22 connected to the board body 21, so that multiple battery cells 10 are connected to the same sampling component 20. In some embodiments, the battery device further includes a bus, which is electrically connected to two or more battery cells 10, and the sampling terminals 22 are connected to the bus. By setting the bus, it can be connected to multiple battery cells 10, realizing the series and parallel connection of battery cells 10, and the status information of multiple battery cells 10 can be collected simultaneously.

[0090] The structure of the sampling component 20 provided in this embodiment can be set with reference to the structure of the sampling component 20 in the aforementioned battery device embodiment, and will not be described in detail here.

[0091] This application also proposes an electrical device 100, including a battery device according to any of the above-described embodiments, the battery device being used to provide electrical energy to the electrical device 100. In the embodiments of this application, the electrical device 100 refers to a device that uses a battery to provide electrical energy, and may be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys may include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0092] The specific structure of the battery device in this embodiment refers to the above embodiment. By using the battery device in the aforementioned embodiment in the power-consuming device 100, the voltage signal and temperature signal of the battery cell 10 can be effectively transmitted and collected. Thus, thermal management and / or safety management of the battery cell 10 can be performed based on the sampled signal, thereby ensuring the stable performance of the power-consuming device 100.

[0093] Since the electrical device 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0094] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A battery device, characterized by, It includes a battery cell and a sampling component, the sampling component including: The board body includes a circuit area and an isolation area arranged along a first direction. The edge region of the board body is set as the isolation area. The circuit area is provided with sampling lines, and the isolation area is provided with a reinforcing structure. A sampling terminal is provided across the isolation area along the first direction. One end of the sampling terminal is electrically connected to the sampling line, and the other end of the sampling terminal is electrically connected to the battery cell.

2. The battery device of claim 1, wherein The board body includes an insulating structure, and the sampling circuit and the reinforcing structure are built into the insulating structure.

3. The battery device of claim 2, wherein The insulation structure includes at least two layers of insulating film stacked together, with the sampling line and the reinforcement structure located between the same two layers of insulating film.

4. The battery device of claim 2, wherein The insulation structure includes at least three layers of insulating film stacked together, with a wiring layer formed between any two layers of the insulating film, and the sampling line and the reinforcement structure located in different wiring layers.

5. The battery device of claim 1, wherein At least a portion of the reinforcing structure is disposed on the surface of the isolation zone.

6. The battery device of claim 1, wherein The reinforcing structure is made of metal.

7. The battery device of claim 6, wherein The reinforcing structure is made of copper.

8. The battery device as defined in any one of claims 1 to 7, characterized by The reinforcing structure is spaced apart from the edge of the main plate body.

9. The battery device as defined in any one of claims 1 to 7, characterized by The reinforcing structure is located at the edge of the main body of the plate.

10. A sampling assembly comprising: include: The board body includes a circuit area and an isolation area arranged along a first direction. The edge region of the board body is set as the isolation area. The circuit area is provided with sampling lines, and the isolation area is provided with a reinforcing structure. A sampling terminal, one end of which is connected to the board body and electrically connected to the sampling line, and the other end of which is used to electrically connect to a battery cell.

11. An electrical device, characterized by Includes the battery device as described in any one of claims 1 to 9.

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