Battery device, temperature sampling structure, energy storage device, energy storage system, power consumption device and charging network

Abstract

The embodiments of the present application provide a battery device, a temperature sampling structure, an energy storage device, an energy storage system, an electrical device and a charging network, and belong to the field of battery technology. The battery device includes: a battery management system, a sampling circuit board and at least one temperature sampling structure, the sampling circuit board is electrically connected to the battery management system, and the temperature sampling structure includes: a temperature sensor for collecting the temperature of the battery device; an adapter, including a plurality of welding parts that are spaced and electrically connected to the temperature sensor, and provided with a drain; a support, the temperature sensor is mounted on the support and connected to the adapter; an insulating member is arranged between two adjacent welding parts. By setting the above insulating member, the creepage distance between two adjacent welding parts is increased, and the risk of short circuit caused by the close distance between two adjacent welding parts is reduced. Combined with the design of the drain, the risk of accidental conduction between multiple welding parts caused by condensed water is reduced, and the risk of short circuit between multiple welding parts is further reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and more specifically, to a battery device, a temperature sampling structure, an energy storage device, an energy storage system, an electrical device, and a charging network. Background Art

[0002] In existing battery devices, the temperature sampling structure is a key component for monitoring the temperature of battery cells. The temperature sampling structure usually includes a temperature sensor and an adapter, where the adapter is responsible for transmitting the temperature sensor signal to the battery management system. However, in the existing temperature sampling structure, the distance between the multiple welding parts of the adapter is too close, which can easily lead to short circuits between the multiple welding parts. In addition, under certain environmental conditions (such as high humidity environments), when condensed water drips on the adapter, it may cause accidental conduction between the multiple welding parts through the condensed water, further exacerbating the risk of short circuits. Utility Model Content

[0003] The present application provides a battery device, a temperature sampling structure, an energy storage device, an energy storage system, an electrical device and a charging network to increase the creepage distance between two adjacent welding parts and reduce the risk of short circuit between multiple welding parts.

[0004] In a first aspect, an embodiment of the present application provides a battery device, including: a battery management system, a sampling circuit board and at least one temperature sampling structure, wherein the sampling circuit board is electrically connected to the battery management system, and the temperature sampling structure includes:

[0005] A temperature sensor, used to collect the temperature of the battery device;

[0006] The adapter comprises a plurality of welding parts which are spaced apart and electrically connected to the temperature sensor, and is provided with a drainage port;

[0007] A support member, the temperature sensor is mounted on the support member and connected to the adapter member;

[0008] The insulating member is arranged between two adjacent welding portions.

[0009] In the above technical solution, through the arrangement of the above-mentioned insulating parts, the creepage distance between the two adjacent welding parts is effectively increased, and the risk of short circuit caused by the close distance between the two adjacent welding parts is reduced. At the same time, combined with the design of the drain outlet, the condensed water on the adapter can be discharged in time, reducing the probability of large-scale accumulation of condensed water between the two adjacent welding parts, and reducing the risk of accidental conduction between multiple welding parts caused by condensed water, thereby further reducing the risk of short circuit between multiple welding parts, and thus significantly improving the stability and reliability of the temperature sampling structure.

[0010] In some embodiments, the insulating member is disposed to protrude relative to the welding portion in a direction away from the supporting member.

[0011] In some embodiments, the top surface height of the insulating component is greater than the top surface height of the adapter, and the bottom surface height of the insulating component is greater than the bottom surface height of the adapter.

[0012] In some embodiments, the sampling circuit board is provided with an opening for installing the insulating member, and the opening passes through the sampling circuit board and is communicated with the drain port.

[0013] In some embodiments, a plurality of insulating members spaced apart from each other are provided between two adjacent welding portions.

[0014] In some embodiments, the insulating member is mounted on an outer side wall of the support member, one end of the drain port is open, and the other end extends to the bottom of the support member.

[0015] In the above technical solution, by setting the insulating part to be installed on the outer wall of the support part, the stable assembly of the insulating part is achieved without causing negative impact on the overall strength of the temperature sampling structure. At the same time, the drainage outlet extending to the bottom of the support part can also avoid the protruding insulating part, thereby solving the interference problem between the insulating part and the adapter.

[0016] In some embodiments, the insulating member and the supporting member are an integrated structure.

[0017] In some embodiments, the insulating component is installed on the adapter, and the drain port is disposed adjacent to the insulating component.

[0018] In some embodiments, a plurality of drain ports are provided, and the plurality of drain ports are arranged around the periphery of the insulating member.

[0019] In some embodiments, the insulating component and the adapter are an integrated structure.

[0020] In some embodiments, the support member forms a cavity for mounting the temperature sensor, and the cavity is filled with sealant.

[0021] In some embodiments, the adapter includes a conductive layer for connecting the soldering portion and the temperature sensor.

[0022] In a second aspect, an embodiment of the present application provides a temperature sampling structure, which is applied to any of the above-mentioned battery devices, including:

[0023] A temperature sensor, used to collect the temperature of the battery device;

[0024] The adapter comprises a plurality of welding parts which are spaced apart and electrically connected to the temperature sensor, and is provided with a drainage port;

[0025] A support member, the temperature sensor is mounted on the support member and connected to the adapter member;

[0026] An insulating member is disposed between two adjacent welding portions.

[0027] In the above technical solution, through the arrangement of the above-mentioned insulating parts, the creepage distance between the two adjacent welding parts is effectively increased, and the risk of short circuit caused by the close distance between the two adjacent welding parts is reduced. At the same time, combined with the design of the drain outlet, the condensed water on the adapter can be discharged in time, reducing the probability of large-scale accumulation of condensed water between the two adjacent welding parts, and reducing the risk of accidental conduction between multiple welding parts caused by condensed water, thereby further reducing the risk of short circuit between multiple welding parts, and thus significantly improving the stability and reliability of the temperature sampling structure.

[0028] In a third aspect, an embodiment of the present application provides an energy storage device, comprising: a plurality of battery devices as described above, wherein the battery devices are used to store or provide electrical energy.

[0029] In a fourth aspect, an embodiment of the present application provides an energy storage system, comprising: a power conversion device and an energy storage device as described above, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.

[0030] In a fifth aspect, an embodiment of the present application provides an electrical device, comprising: a battery device as any one of the above, an energy storage device as described above, or an energy storage system as described above, wherein the battery device is used to store or provide electrical energy.

[0031] In a sixth aspect, an embodiment of the present application provides a charging network, comprising: a charging pile and an energy storage device as described above or the energy storage system as described above, wherein the energy storage device is used to provide electrical energy to the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the structure of an energy storage system provided in some embodiments of the present application;

[0034] Figure 2A schematic diagram of the structure of a charging network provided in some embodiments of the present application;

[0035] Figure 3 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0036] Figure 4 An exploded view of the structure of a battery device provided in some embodiments of the present application;

[0037] Figure 5 A top view of a sampling circuit board and a temperature sampling structure provided in some embodiments of the present application;

[0038] Figure 6 A schematic diagram of a temperature sampling structure provided in some embodiments of the present application;

[0039] Figure 7 for Figure 5 Sectional view of section AA;

[0040] Figure 8 One of the structural explosion diagrams of the temperature sampling structure provided in some embodiments of the present application;

[0041] Fig. 9 This is a second structural explosion diagram of the temperature sampling structure provided in some embodiments of the present application.

[0042] Reference numerals:

[0043] Energy storage device 1, power conversion device 2, power generation equipment 3, charging pile 4, connector 5;

[0044] Vehicles 1000;

[0045] Battery device 100;

[0046] Box body 10, first box body 11, second box body 12;

[0047] Battery cell 20;

[0048] A sampling circuit board 30, an opening 31;

[0049] Temperature sampling structure 40, temperature sensor 41;

[0050] Adapter 42, drain port 421, welding portion 422, conductive layer 423;

[0051] Support member 43, cavity 431;

[0052] Insulation 44, sealant 45;

[0053] Controller 200; Motor 300. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0056] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0057] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0059] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0060] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0061] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0062] The battery cell can be cylindrical, flat, rectangular or other shapes, and the present application embodiment does not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the present application embodiment does not limit this.

[0063] The battery cell includes a shell, an electrode assembly and an electrolyte, and the shell is used to contain the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode collector and a positive electrode active material layer. The positive electrode collector includes a positive electrode collector body and a positive electrode ear. The positive electrode active material layer is coated on the surface of the positive electrode collector body. The positive electrode ear is not coated with the positive electrode active material layer and protrudes from the positive electrode collector body. Taking lithium-ion batteries as an example, the material of the positive electrode collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide. The negative electrode sheet includes a negative electrode collector and a negative electrode active material layer. The negative electrode collector includes a negative electrode collector body and a negative electrode ear. The negative electrode active material layer is coated on the surface of the negative electrode collector body. The negative electrode ear is not coated with the negative electrode active material layer and protrudes from the negative electrode collector body. The negative electrode current collector may be made of copper, and the negative electrode active material may be carbon or silicon, etc. In order to ensure that a large current can be passed without melting, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.

[0064] The material of the isolation film may be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly may be a winding structure or a stacked structure, but the embodiments of the present application are not limited thereto.

[0065] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using battery cells, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Battery cells are used to store or provide electrical energy.

[0066] The inventors found that in existing battery devices, the temperature sampling structure is a key component for monitoring the temperature of battery cells. The temperature sampling structure usually includes a temperature sensor and an adapter, wherein the adapter is responsible for transmitting the signal of the temperature sensor to the battery management system. However, in the existing temperature sampling structure, the distance between the multiple welding parts of the adapter is too close, which can easily lead to a short circuit between the multiple welding parts. Moreover, under certain environmental conditions (such as a high humidity environment), when condensed water drips on the adapter, it may cause accidental conduction between the multiple welding parts through the condensed water, further exacerbating the risk of short circuit.

[0067] Based on the above considerations, in order to solve the problem that the distance between multiple welding parts of the adapter is too close and when condensed water drops on the adapter, it is easy to cause a short circuit between multiple welding parts, the inventor has designed a battery device after in-depth research, including: a battery management system, a sampling circuit board and at least one temperature sampling structure, the sampling circuit board is electrically connected to the battery management system, and the temperature sampling structure includes: a temperature sensor, an adapter, a support and an insulating member. The temperature sensor is used to collect the temperature of the battery device; the adapter includes multiple welding parts that are spaced and distributed and electrically connected to the temperature sensor, and is provided with a drain port; the temperature sensor is installed on the support and connected to the adapter; the insulating member is arranged between two adjacent welding parts.

[0068] In a battery device of this structure, by providing an insulating member between two adjacent welding parts and providing a drain port on the adapter, this structure increases the creepage distance between two adjacent welding parts and improves the electrical isolation between multiple welding parts, thereby reducing the risk of short circuit. On the other hand, the design of the drain port enables condensed water on the adapter to be discharged in a timely manner, reducing the risk of accidental conduction between multiple welding parts caused by condensed water, thereby further reducing the risk of short circuit between multiple welding parts.

[0069] The battery apparatus mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, in parallel or in mixed connection through a busbar component.

[0070] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0071] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0072] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the case.

[0073] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box by fixing the battery module in the box.

[0074] As an example, the battery cell assembly may also be housed in the case by directly fixing a plurality of battery cells to the case.

[0075] As an example, the box may include a first box and a second box. The first box and the second box are buckled together to form a closed space inside the box to accommodate the battery cell assembly. The closed here means covered or closed, which can be sealed or unsealed. The first box can be a top cover or a bottom plate.

[0076] As an example, the box body 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 a closed space is formed inside the box body to accommodate the battery cell assembly.

[0077] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0078] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using battery devices, such as mobile phones, portable devices, laptop computers, battery vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Battery devices are used to store or provide electrical energy.

[0079] The embodiment of the present application provides an energy storage device, including one or more battery clusters (Battery Cluster) to increase the voltage and capacity of the energy storage device. The battery cluster may include multiple battery devices, and the multiple battery devices are connected in series through a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0080] The energy storage device can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems or temporary power supply systems. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device can store electrical energy during low electricity consumption and provide electrical energy to relevant users or electrical devices during peak electricity consumption. The energy storage system provided in the embodiment of the present application can be any power system that requires the use of an energy storage device.

[0081] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0082] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters, wherein the battery clusters are housed in the cabinet.

[0083] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a master control module, a power distribution module, and a fire protection module.

[0084] As an example, the thermal management module may include a liquid cooling unit that provides cooling liquid for regulating the temperature of the battery cells to each battery device through a pipeline.

[0085] As an example, the main control module can be used as a battery management unit of a battery cluster to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power or temperature of the battery cluster. For example, the charging and discharging current and voltage of the battery cluster can be controlled. The main control module includes a slave battery management unit SBMU (Slave Battery Management Unit, SBMU), a fusion switch and other modules.

[0086] As an example, the master control module can be used as a battery management unit of an energy storage device to monitor and manage the energy storage device. The master control module can monitor information such as the current, voltage, power, state of charge or temperature of the energy storage device. For example, the charging and discharging current, voltage, etc. of the energy storage device can be controlled. As an example, the master control module includes an insulation monitoring module IMM (Insulation Monitoring Module, abbreviated as IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU), Ethernet ETH (EtherNet, ETH) and a fiber optic conversion module and other modules.

[0087] As an example, the fire protection system includes a control panel, detectors, alarm devices, etc., which are used to detect, alarm or extinguish fire in the energy storage system.

[0088] As an example, the power distribution device may be used to distribute power to the power modules of the energy storage device.

[0089] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using energy storage devices, such as mobile phones, portable devices, laptop computers, battery vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Energy storage devices are used to store or provide electrical energy.

[0090] In some embodiments, Figure 1As shown, the energy storage system may include one or more energy storage devices 1 and a power converter 2 (Power Converter System, PCS for short), and the power converter 2 is used to be connected between the power generation device 3 and the energy storage device 1. The power generation device 3 is used to generate electric energy, and the electric energy generated by the power generation device 3 can be stored in the energy storage device 1 through the power converter 2. As an example, the power generation device 3 may specifically be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, etc. Among them, the specific type of the power generation device 3 is not limited in this application.

[0091] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using energy storage systems, such as mobile phones, portable devices, laptop computers, battery vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Energy storage devices are used to store or provide electrical energy.

[0092] Please refer to Figure 2 The embodiment of the present application provides a charging network, including a charging pile 4 and an energy storage device 1, wherein the charging pile 4 is electrically connected to the energy storage device 1, and the energy storage device 1 is used to provide electric energy to the charging pile 4. The charging pile 4 is electrically connected to the battery device in the energy storage device 1 through a cable, and the battery device can provide its stored electric energy to the charging pile 4. The charging pile 4 has one or more connectors 5, and the connector 5 is used to connect to an electric device (such as a vehicle), so that the electric device can be replenished with energy.

[0093] The energy storage device can be located inside the charging pile (such as an integrated storage and charging machine) or outside the charging pile.

[0094] The embodiment of the present application provides an electric device using a battery cell or a battery device or an energy storage device or an energy storage system as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, and a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0095] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0096] Please refer to Figure 3 , Figure 3A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle, and the battery device 100 may be provided at the bottom, head or tail of the vehicle. The battery device 100 may be used to power the vehicle, for example, the battery device 100 may be used as an operating power source for the vehicle. The vehicle may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for starting, navigating and operating power requirements of the vehicle during driving.

[0097] In some embodiments of the present application, the battery device 100 can be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0098] Please refer to Figure 4 , Figure 4 The structural exploded diagram of the battery device 100 provided in some embodiments of the present application. The battery device 100 includes a box body 10 and a plurality of battery cells 20, and the battery cells 20 are used to be accommodated in the box body 10. Among them, the box body 10 is used to provide an assembly space for the battery cells 20, and the box body 10 can adopt a variety of structures. In some embodiments, the box body 10 may include a first box body 11 and a second box body 12, and the first box body 11 and the second box body 12 cover each other, and the first box body 11 and the second box body 12 jointly define an assembly space for accommodating the battery cells 20. The second box body 12 can be a hollow structure with one end open, and the first box body 11 can be a plate-like structure. The first box body 11 covers the open side of the second box body 12, so that the first box body 11 and the second box body 12 jointly define the assembly space; the first box body 11 and the second box body 12 can also be hollow structures with one side open, and the open side of the first box body 11 covers the open side of the second box body 12. Of course, the box body 10 formed by the first box body 11 and the second box body 12 can be in various shapes, such as a cylinder, a cuboid, etc.

[0099] In the battery device 100, multiple battery cells 20 can be connected in series, in parallel, or in a mixed connection. A mixed connection means that multiple battery cells 20 are connected in series and in parallel. Multiple battery cells 20 can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by multiple battery cells 20 is accommodated in the box 10; of course, the battery device 100 can also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery device 100 may also include other structures, for example, the battery device 100 may also include a busbar component for realizing electrical connection between multiple battery cells 20.

[0100] Please refer to Figure 4 The battery device 100 includes multiple rows of battery cells 20, which are arranged along a first direction, and each row of battery cells 20 includes multiple battery cells 20 arranged along a second direction. The first direction and the second direction are respectively the length direction of the box body 10 and the width direction of the box body 10, and the first direction and the second direction are perpendicular to each other.

[0101] According to some embodiments of the present application, referring to Figure 5 , and further refer to Figure 8 The present application provides a battery device 100, which includes: a battery management system, a sampling circuit board 30 and at least one temperature sampling structure 40, the sampling circuit board 30 is electrically connected to the battery management system, and the temperature sampling structure 40 includes: a battery management system, a sampling circuit board 30 and at least one temperature sampling structure 40, the sampling circuit board 30 is electrically connected to the battery management system, and the temperature sampling structure 40 includes: a temperature sensor 41, an adapter 42, a support 43 and an insulating member 44. The temperature sensor 41 is used to collect the temperature of the battery device 100; the adapter 42 includes a plurality of welding parts 422 that are spaced apart and electrically connected to the temperature sensor 41, and the adapter 42 is provided with a drain 421; the temperature sensor 41 is installed on the support 43, and the temperature sensor 41 is connected to the adapter 42; the insulating member 44 is arranged between two adjacent welding parts 422.

[0102] The battery management system is used to intelligently manage and maintain each battery cell 20 and monitor the status of the battery device 100 .

[0103] The sampling circuit board 30 is used to obtain and collect various devices in the battery device 100 for measuring the temperature, voltage and other signals of the battery cells 20, and transmit the information to the battery management system.

[0104] The temperature sensor 41 may include a thermocouple sensor or a thermistor sensor, etc., which is not limited here.

[0105] The temperature sensor 41 can detect the temperature of the battery cell 20 , wherein the specific measurement position of the temperature sensor 41 may include but is not limited to the housing or the bus bar, etc., which is not limited here.

[0106] The adapter 42 may use a flexible circuit board or other structures. The adapter 42 may include at least two welding parts 422 , wherein at least one welding part 422 can form the positive electrode of the adapter 42 , and at least one welding part 422 can form the negative electrode of the adapter 42 .

[0107] The temperature sensor 41 is electrically connected to the adapter 42 , and the welding portion 422 is used to be welded to the sampling circuit board 30 , so that the temperature information acquired by the temperature sensor 41 can be transmitted to the adapter 42 , and then to the sampling circuit board 30 .

[0108] The temperature sensor 41 and the welding portion 422 may be directly connected to achieve electrical conduction, or may be connected through other parts to achieve electrical conduction, which is not limited here.

[0109] There may be one or more drain outlets 421 , wherein “more” means two or more.

[0110] For example, in some embodiments, reference Figure 6 The adapter 42 is provided with a drain port 421 .

[0111] For example, in some embodiments, the adapter 42 is provided with four drainage ports 421 .

[0112] The shape of the drain port 421 may include but is not limited to a circle, a waist or a square, etc., which is not limited here.

[0113] In some embodiments, the side wall of the drain port 421 may be designed as an inclined surface to guide the condensed water to be discharged quickly.

[0114] The support member 43 can be used to protect the temperature sensor 41. For example, Figure 6 , and further refer to Figure 8 The support member 43 can be designed as a frame shape, and the temperature sensor 41 can be installed inside the support member 43. When the temperature sampling structure 40 is subjected to external disturbance, the temperature sensor 41 can be protected inside by the support member 43 to reduce the force acting on the temperature sensor 41.

[0115] In some embodiments, a slot may be provided on the outer surface of the support member 43 to help the support member 43 to be connected to the busbar by snapping.

[0116] The insulating member 44 may be made of a material having good insulation and temperature resistance, such as polyethylene, polypropylene, polyvinyl fluoride or ceramic.

[0117] The insulating member 44 may be installed on the adapter 42 or the support member 43 , which is not limited here.

[0118] For example, in some embodiments, reference Figure 8 , the insulating member 44 is installed on the adapter 42 .

[0119] For example, in some other embodiments, referring to Fig. 9 , the insulating member 44 is installed on the supporting member 43.

[0120] It is understandable that, based on the insulating member 44 being disposed between two adjacent welding portions 422, the blocking effect of the insulating member 44 changes the electrical clearance between the two adjacent welding portions 422 into a creepage distance, providing more reliable safety protection between the two adjacent welding portions 422, and reducing the risk of short circuits caused by the two adjacent welding portions 422 being too close. When a large amount of condensed water is generated in the box 10 of the battery device 100, even if the condensed water drips onto the adapter 42, due to the presence of the insulating member 44, it is difficult for a small amount of condensed water to form a continuous conductive path between the two adjacent welding portions 422 in a short time. The adapter 42 is provided with a drain port 421, which can not only play a certain role in interrupting the flow, but also help the condensed water to be quickly discharged, reducing the probability of a large amount of condensed water accumulating between the two adjacent welding portions 422, and shortening the residence time of the condensed water on the adapter 42, thereby further reducing the risk of short circuits between multiple welding portions 422.

[0121] The battery device 100 provided in the embodiment of the present application effectively increases the creepage distance between two adjacent welding parts 422 through the arrangement of the above-mentioned insulating member 44, reduces the risk of short circuit caused by the close distance between the two adjacent welding parts 422, and combines the design of the drain port 421 to enable condensed water on the adapter 42 to be discharged in time, thereby reducing the probability of large-scale accumulation of condensed water between two adjacent welding parts 422, and reducing the risk of accidental conduction between multiple welding parts 422 caused by condensed water, thereby further reducing the risk of short circuit between multiple welding parts 422, thereby significantly improving the stability and reliability of the temperature sampling structure 40.

[0122] According to some embodiments of the present application, referring to Figure 6 , Figure 8 and Fig. 9 As shown, the insulating member 44 is arranged to protrude relative to the welding portion 422 in a direction away from the supporting member 43 .

[0123] It is understandable that since the insulating member 44 is protruding relative to the welding portion 422 in the direction away from the support member 43, in other words, the insulating member 44 extends in the direction away from the support member 43 to exceed the welding portion 422, the use of this structure can not only further increase the creepage distance between two adjacent welding portions 422, but also provide an additional protective barrier for the welding portion 422, reducing the risk of short circuit caused by surface defects, corrosion or external contaminants of the welding portion 422. In addition, during the assembly, maintenance or overhaul of the battery device 100, the probability of tools, fingers or other objects accidentally contacting the welding portion 422 can be effectively reduced, thereby reducing the risk of short circuit or damage caused by human operating errors during maintenance.

[0124] The battery device 100 provided in the embodiment of the present application further increases the creepage distance between two adjacent welding parts 422 through the structural design of the above-mentioned insulating part 44 protruding relative to the welding part 422 in the direction away from the support part 43, while reducing the risk of short circuit caused by surface defects, corrosion or external contaminants of the welding part 422, and reducing the risk of short circuit or damage caused by human operational errors.

[0125] According to some embodiments of the present application, referring to Figure 7 The top surface height of the insulating member 44 is greater than the top surface height of the adapter 42 , and the bottom surface height of the insulating member 44 is greater than the bottom surface height of the adapter 42 .

[0126] In some embodiments, reference Figure 7 , a height difference ΔH1 between the top surface height of the insulating member 44 and the top surface height of the adapter 42 may satisfy: 0.3 mm ≤ ΔH1 ≤ 0.5 mm.

[0127] Specifically, ΔH1 may be 0.3 mm, 0.35 mm, 0.4 mm, 0.473 mm, 0.5 mm or other values ​​between 0.3 mm and 0.5 mm.

[0128] In some embodiments, reference Figure 7 , the height difference ΔH2 between the top surface height of the insulating member 44 and the top surface height of the adapter 42 may satisfy: 0.3 mm ≤ ΔH2 ≤ 0.5 mm.

[0129] Specifically, ΔH2 may be 0.3 mm, 0.384 mm, 0.4 mm, 0.45 mm, 0.5 mm or other values ​​between 0.3 mm and 0.5 mm.

[0130] The battery device 100 provided in the embodiment of the present application provides all-round electrical isolation protection for the welding portion 422 through the layout design of the above-mentioned insulating member 44 and the adapter 42 in the height direction, which can not only reduce the direct electrical contact between adjacent welding portions 422, but also effectively resist electrical interference from above and below, further reduce the short circuit risk of the welding portion 422, and at the same time increase the structural rigidity of the insulating member 44 itself, thereby improving the overall stability of the temperature sampling structure 40, thereby helping to reduce the probability of loosening or damage of the welding portion 422 under vibration or impact conditions.

[0131] According to some embodiments of the present application, referring to Figure 5 , and further refer to Figure 7 The sampling circuit board 30 is provided with an opening 31 for installing the insulating member 44 . The opening 31 penetrates through the sampling circuit board 30 and is communicated with the drain port 421 .

[0132] In this embodiment, reference Figure 5 , and further refer to Figure 7 , one side of the opening 31 is open to avoid the insulating member 44, and the adapter 42 is overlapped with the sampling circuit board 30. Specifically, the multiple welding parts 422 of the adapter 42 are welded and connected to the corresponding connection positions of the sampling circuit board 30, so that the adapter 42 is partially fitted with the sampling circuit board 30 and the opening 31 is arranged opposite to the drain port 421, so that the drain port 421 can be directly connected with the opening 31 to form a continuous drainage channel. When condensed water accumulates on the adapter 42, the water can flow into the opening 31 of the sampling circuit board 30 through the drain port 421 and finally be discharged from the outside of the battery device 100.

[0133] The battery device 100 provided in the embodiment of the present application realizes effective discharge of condensed water through the connection design between the opening 31 on the sampling circuit board 30 and the drain port 421 of the adapter 42, reduces the long-term accumulation of condensed water on the adapter 42 and the sampling circuit board 30, and reduces the risk of short circuit caused by condensed water. At the same time, the insulating member 44 is not only arranged between two adjacent welding parts 422 of the adapter 42, but also forms electrical isolation with other parts of the battery device 100 through the opening 31 of the sampling circuit board 30, thereby further improving the safety and reliability of the battery device 100. In addition, by combining the drain port 421 with the opening 31 of the sampling circuit board 30, the overall structural design of the battery device 100 is simplified, the manufacturing cost is reduced, and the production efficiency is improved.

[0134] According to some embodiments of the present application, a plurality of insulating members 44 are disposed between two adjacent welding portions 422 and are spaced apart from each other.

[0135] Here, multiple means two or more.

[0136] For example, in some embodiments, three insulating members 44 are disposed between two adjacent welding portions 422 and are spaced apart from each other.

[0137] The sizes of the plurality of insulating members 44 may be the same, or at least partially different, which is not limited herein.

[0138] The multiple insulating members 44 may be spaced apart and distributed along a single direction, such as along the separation direction of two adjacent welding portions 422 , or may be spaced apart and distributed along multiple directions to form a multi-level electrical isolation barrier, which is not limited here.

[0139] The battery device 100 provided in the embodiment of the present application forms a multi-level electrical isolation barrier through the structural design of arranging multiple insulating parts 44 spaced apart and distributed between the above-mentioned two adjacent welding parts 422, effectively reducing the risk of short circuit caused by too small a spacing between the multiple welding parts 422 or external factors, and even if one insulating part 44 is damaged or fails, the other insulating parts 44 can continue to provide electrical isolation protection, thereby comprehensively improving the overall reliability of the temperature sampling structure 40.

[0140] According to some embodiments of the present application, referring to Figure 6 , and further refer to Figure 8 The insulating member 44 is installed on the outer wall of the supporting member 43 , one end of the drain port 421 is open, and the other end extends to the bottom of the supporting member 43 .

[0141] In this embodiment, reference Figure 6 , and further refer to Figure 8 One end of the insulating member 44 is connected to the outer wall of the support member 43, and the other end of the insulating member 44 is cantilevered to form a free end. One end of the drain port 421 is open in a direction away from the support member 43, and the other end of the drain port 421 is hidden at the bottom of the support member 43. The entire drain port 421 is U-shaped, and at least part of the insulating member 44 is located in the drain port 421.

[0142] The insulating member 44 can be fixed to the supporting member 43 in a variety of ways, such as integral molding, gluing, snap-fitting or threaded connection, etc., which are not limited here.

[0143] The battery device 100 provided in the embodiment of the present application realizes a stable assembly of the insulating member 44 by setting the insulating member 44 to be installed on the outer wall of the support member 43, while not causing a negative impact on the overall strength of the temperature sampling structure 40. At the same time, the drainage port 421 extending to the bottom of the support member 43 can also avoid the protruding insulating member 44, thereby solving the interference problem between the insulating member 44 and the adapter 42.

[0144] According to some embodiments of the present application, referring to Figure 6 , and further refer to Figure 8 The insulating member 44 and the supporting member 43 are an integrated structure.

[0145] The insulating member 44 and the supporting member 43 are designed as an integrated structure, which means that the insulating member 44 and the supporting member 43 are manufactured simultaneously during the production process to form an inseparable whole.

[0146] Specifically, the insulating member 44 and the supporting member 43 may be integrated by injection molding, molding or other molding processes, which are not limited here.

[0147] For example, in some embodiments, the insulating member 44 and the supporting member 43 are integrated into one another by injection molding.

[0148] During the processing, parameters such as molding temperature, pressure and time need to be precisely controlled to maintain the quality and performance of the integrated structure.

[0149] The battery device 100 provided in the embodiment of the present application designs the insulating member 44 and the supporting member 43 as an integrated structure, thereby reducing the interfaces and connectors between the insulating member 44 and the supporting member 43, making the overall structure of the battery device 100 more compact and simple, thereby helping to reduce manufacturing costs, improve production efficiency, and reduce the risk of failure due to loose interfaces or poor connections. At the same time, the integrated structure can reduce the relative movement between the insulating member 44 and the supporting member 43, and improve the overall stability of the temperature sampling structure 40, thereby helping to reduce loosening or damage of the temperature sampling structure 40 under vibration or impact conditions, and improving the reliability and durability of the temperature sampling structure 40.

[0150] According to some embodiments of the present application, referring to Fig. 9 The insulating member 44 is installed on the adapter 42 , and the drain port 421 is disposed adjacent to the insulating member 44 .

[0151] In this embodiment, reference Fig. 9 The insulating member 44 can penetrate the adapter 42, one end of the insulating member 44 extends beyond the welding portion 422, and the other end of the insulating member 44 extends to not contact the support member 43, that is, the insulating member 44 is spaced a certain distance from the support member 43. The drain port 421 can be provided near the insulating member 44, which helps to drain the condensed water smoothly and reduces the accumulation of condensed water on the insulating member 44 and the adapter 42.

[0152] In other embodiments, the insulating component 44 passes through the adapter 42 .

[0153] The insulating member 44 can be fixed to the adapter 42 in a variety of ways, such as integral molding, gluing, snap-fitting or threaded connection, etc., which are not limited here.

[0154] The battery device 100 provided in the embodiment of the present application, by configuring the insulating part 44 to be installed on the adapter 42, achieves a stable assembly of the insulating part 44 without interfering with the normal function of the adapter 42. At the same time, the drain port 421 is arranged adjacent to the insulating part 44, which helps to smoothly discharge the condensed water, significantly shortens the residence time of the condensed water on the insulating part 44 and the adapter 42, and reduces the risk of corrosion and short circuit caused by the condensed water.

[0155] According to some embodiments of the present application, referring to Fig. 9 A plurality of drainage openings 421 are provided, and the plurality of drainage openings 421 are arranged around the periphery of the insulating member 44 .

[0156] Here, multiple means two or more.

[0157] For example, in some embodiments, three drainage openings 421 are provided. Since one end of the insulating member 44 has exceeded the welding portion 422 , the three drainage openings 421 are respectively provided around three circumferences of the insulating member 44 .

[0158] A plurality of drainage ports 421 are disposed around the periphery of the insulating member 44 . This arrangement allows condensed water to be smoothly discharged from all directions of the insulating member 44 , thereby reducing the accumulation of condensed water near the insulating member 44 .

[0159] The multiple drain outlets 421 may be designed to have the same shape, or at least some of them may be designed to have different shapes, including but not limited to circular, waist-shaped, rectangular or other shapes, which are not limited here.

[0160] For example, in some embodiments, reference Fig. 9 Among the multiple drainage openings 421, some of the drainage openings 421 are designed to be circular, and the other drainage openings 421 are designed to be waist-shaped.

[0161] The battery device 100 provided in the embodiment of the present application increases the drainage area and improves the drainage efficiency through the structural design of the above-mentioned multiple drainage ports 421 arranged around the periphery of the insulating part 44, so that condensed water can be smoothly discharged from all directions of the insulating part 44, reducing the accumulation of condensed water near the insulating part 44. At the same time, the close fit between the drainage port 421 and the insulating part 44 and the surrounding layout of the multiple drainage ports 421 further enhance the electrical isolation performance between two adjacent welding parts 422, thereby minimizing the risk of failure caused by electrical short circuit.

[0162] According to some embodiments of the present application, referring to Fig. 9 The insulating member 44 and the adapter member 42 are an integrated structure.

[0163] The insulating component 44 and the adapter 42 are designed as an integrated structure, which means that the insulating component 44 and the adapter 42 are manufactured simultaneously during the production process to form an inseparable whole.

[0164] Specifically, the insulating component 44 and the adapter 42 can be integrated by injection molding, molding or other molding processes, which are not limited here.

[0165] For example, in some embodiments, the insulating component 44 and the adapter 42 are integrated by injection molding.

[0166] During the processing, parameters such as molding temperature, pressure and time need to be precisely controlled to maintain the quality and performance of the integrated structure.

[0167] The battery device 100 provided in the embodiment of the present application designs the insulating member 44 and the adapter 42 as an integrated structure, thereby reducing the interfaces and connectors between the insulating member 44 and the adapter 42, making the overall structure of the battery device 100 more compact and simple, thereby helping to reduce manufacturing costs, improve production efficiency, and reduce the risk of failure due to loose interfaces or poor connections. At the same time, the integrated structure can reduce the relative movement between the insulating member 44 and the adapter 42, and improve the overall stability of the temperature sampling structure 40, thereby helping to reduce loosening or damage of the temperature sampling structure 40 under vibration or impact conditions, and improving the reliability and durability of the temperature sampling structure 40.

[0168] According to some embodiments of the present application, referring to Figure 6 , Figure 8 and Fig. 9 As shown, the support member 43 forms a cavity 431 for mounting the temperature sensor 41 , and the cavity 431 is filled with a sealant 45 .

[0169] The sealant 45 may include but is not limited to silicone sealant, polyurethane sealant or epoxy resin sealant, etc., which is not limited here.

[0170] It can be understood that, based on the cavity 431 being filled with the sealant 45, not only the assembly between the temperature sensor 41 and the support 43 is achieved, but also the assembly between the support 43 and the adapter 42 is achieved. In this way, there is no need to set an additional connecting component between the support 43 and the adapter 42. At the same time, the sealant 45 forms a dense wrapping effect on the temperature sensor 41, so that the charged temperature sensor 41 can be effectively protected, reducing the risk of external water vapor intrusion, thereby reducing the risk of short circuit.

[0171] The battery device 100 provided in the embodiment of the present application realizes the assembly between the temperature sensor 41 and the support member 43 and the assembly between the support member 43 and the adapter 42 through the provision of the above-mentioned sealant 45, without the need to provide additional connecting components, thereby saving manufacturing costs. At the same time, the sealant 45 forms a dense wrapping effect on the temperature sensor 41, so that the charged temperature sensor 41 can be effectively protected, reducing the risk of external water vapor intrusion, thereby reducing the risk of short circuit.

[0172] According to some embodiments of the present application, referring to Figure 6 , Figure 8 and Fig. 9 As shown, the adapter 42 includes a conductive layer 423 for connecting the welding portion 422 and the temperature sensor 41 .

[0173] The conductive layer 423 may be a film, a coating, or an insert made of metal, alloy, or other conductive materials, which is not limited here.

[0174] The position and shape of the conductive layer 423 may be determined according to the position and connection requirements of the soldering portion 422 and the temperature sensor 41 , so that a reliable electrical connection can be established between the soldering portion 422 and the temperature sensor 41 .

[0175] During the welding process, a portion of the conductive layer 423 may be in direct contact with the welding portion 422 or indirectly connected through welding materials to establish an electrical connection. The temperature sensor 41 is connected to the welding portion 422 through the conductive layer 423, which may be achieved by welding, crimping, plugging or other electrical connection methods, which are not limited here.

[0176] The battery device 100 provided in the embodiment of the present application realizes an electrical connection between the welding portion 422 and the temperature sensor 41 through the provision of the above-mentioned conductive layer 423, thereby realizing signal transmission between the temperature sensor 41 and the battery management system. In addition, since the thickness of the conductive layer 423 itself is negligible, the thickness of the adapter 42 will not be increased as a whole. Therefore, when the insulating member 44 is installed on the outer wall of the support member 43, the thickness design of the insulating member 44 will not be affected by the conductive layer 423, thereby realizing the overall miniaturization and lightweight design of the temperature sampling structure 40.

[0177] According to some embodiments of the present application, referring to Figure 8 , and further refer to Fig. 9The present application also provides a temperature sampling structure 40, which is applied to the battery device 100 of any of the above schemes. The temperature sampling structure 40 includes: a battery management system, a sampling circuit board 30 and at least one temperature sampling structure 40. The sampling circuit board 30 is electrically connected to the battery management system. The temperature sampling structure 40 includes: a temperature sensor 41, an adapter 42, a support 43 and an insulating member 44. The temperature sensor 41 is used to collect the temperature of the battery device 100; the adapter 42 includes a plurality of welding parts 422 that are spaced apart and electrically connected to the temperature sensor 41, and the adapter 42 is provided with a drain 421; the temperature sensor 41 is installed on the support 43, and the temperature sensor 41 is connected to the adapter 42; the insulating member 44 is arranged between two adjacent welding parts 422.

[0178] The temperature sampling structure 40 provided in the embodiment of the present application effectively increases the creepage distance between two adjacent welding parts 422 through the arrangement of the above-mentioned insulating part 44, reduces the risk of short circuit caused by the two adjacent welding parts 422 due to the close distance, and at the same time, combined with the design of the drain port 421, the condensed water on the adapter 42 can be discharged in time, reducing the probability of large-scale accumulation of condensed water between two adjacent welding parts 422, and reducing the risk of accidental conduction between multiple welding parts 422 caused by condensed water, thereby further reducing the risk of short circuit between multiple welding parts 422, thereby significantly improving the stability and reliability of the temperature sampling structure 40.

[0179] According to some embodiments of the present application, the present application further provides an energy storage device 1, which includes a plurality of battery devices 100 of any of the above schemes, and the battery devices 100 are used to store or provide electrical energy.

[0180] According to some embodiments of the present application, the present application also provides an energy storage system, which includes: a power conversion device 2 and an energy storage device 1 of any of the above schemes, and the power conversion device 2 is used to electrically connect the power generation equipment 3 and the energy storage device 1.

[0181] According to some embodiments of the present application, the present application further provides an electric device. The electric device includes a battery device 100 of any of the above solutions, and the battery device 100 is used to store or provide electric energy; or the electric device includes an energy storage device 1 of any of the above solutions, and the battery device 100 is used to store or provide electric energy; or the electric device includes an energy storage system of any of the above solutions, and the battery device 100 is used to store or provide electric energy.

[0182] The power-consuming device may be any of the aforementioned devices or systems using the battery device 100 .

[0183] According to some embodiments of the present application, the present application also provides a charging network, which includes a charging pile 4 and an energy storage device 1 of any of the above schemes or an energy storage system of any of the above schemes, and the energy storage device 1 is used to provide electrical energy to the charging pile 4.

[0184] The energy storage device 1 may be located inside the charging pile 4 (eg, an integrated storage and charging device), or may be located outside the charging pile 4 .

[0185] According to some embodiments of the present application, see Figure 5-Figure 8 As shown, the present application provides a battery device 100, including: a battery management system, a sampling circuit board 30 and at least one temperature sampling structure 40, the sampling circuit board 30 is electrically connected to the battery management system, and the temperature sampling structure 40 includes: a temperature sensor 41, an adapter 42, a support 43 and an insulating member 44. The temperature sensor 41 is used to collect the temperature of the battery device 100; the adapter 42 includes a plurality of welding parts 422 that are spaced and electrically connected to the temperature sensor 41, and the adapter 42 is provided with a drain 421; the temperature sensor 41 is installed on the support 43, and the temperature sensor 41 is connected to the adapter 42; the insulating member 44 is arranged between two adjacent welding parts 422. The insulating member 44 is arranged to protrude relative to the welding part 422 in a direction away from the support 43. The top surface height of the insulating member 44 is greater than the top surface height of the adapter 42, and the bottom surface height of the insulating member 44 is greater than the bottom surface height of the adapter 42. The sampling circuit board 30 is provided with an opening 31 for installing an insulating member 44, and the opening 31 passes through the sampling circuit board 30 and is connected to the drain port 421. A plurality of insulating members 44 are arranged spaced apart between two adjacent welding portions 422. The insulating member 44 is mounted on the outer wall of the support member 43, and one end of the drain port 421 is open, and the other end extends to the bottom of the support member 43. The insulating member 44 and the support member 43 are an integrated structure. The support member 43 forms a cavity 431 for installing the temperature sensor 41, and the cavity 431 is filled with a sealant 45. The adapter 42 includes a conductive layer 423 for connecting the welding portion 422 and the temperature sensor 41.

[0186] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0187] Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

[0188] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery device, characterized in that: include: A battery management system, a sampling circuit board and at least one temperature sampling structure, wherein the sampling circuit board is electrically connected to the battery management system, and the temperature sampling structure comprises: A temperature sensor, used to collect the temperature of the battery device; The adapter comprises a plurality of welding parts which are spaced apart and electrically connected to the temperature sensor, and is provided with a drainage port; A support member, the temperature sensor is mounted on the support member and connected to the adapter member; The insulating member is arranged between two adjacent welding portions.

2. The battery device according to claim 1, characterized in that: The insulating member is disposed to protrude relative to the welding portion toward a direction away from the supporting member.

3. The battery device according to claim 1, characterized in that: The top surface height of the insulating component is greater than the top surface height of the adapter component, and the bottom surface height of the insulating component is greater than the bottom surface height of the adapter component.

4. The battery device according to claim 1, characterized in that: The sampling circuit board is provided with an opening for installing the insulating member, and the opening penetrates the sampling circuit board and is communicated with the drain port.

5. The battery device according to claim 1, characterized in that: A plurality of insulating members which are spaced apart and distributed are arranged between two adjacent welding portions.

6. The battery device according to any one of claims 1 to 5, characterized in that: The insulating member is installed on the outer side wall of the supporting member, one end of the drain port is open, and the other end extends to the bottom of the supporting member.

7. The battery device according to claim 6, characterized in that: The insulating member and the supporting member are an integrated structure.

8. The battery device according to any one of claims 1 to 5, characterized in that: The insulating component is installed on the adapter, and the drain port is arranged adjacent to the insulating component.

9. The battery device according to claim 8, characterized in that: The plurality of drain ports are arranged, and the plurality of drain ports are arranged around the periphery of the insulating component.

10. The battery device according to claim 8, characterized in that: The insulating component and the adapter are an integrated structure.

11. The battery device according to any one of claims 1 to 5, characterized in that: The support member forms a cavity for mounting the temperature sensor, and the cavity is filled with a sealant; and / or, The adapter includes a conductive layer for connecting the welding portion and the temperature sensor.

12. A temperature sampling structure, applied to the battery device according to any one of claims 1 to 11, characterized in that: include: A temperature sensor, used to collect the temperature of the battery device; The adapter comprises a plurality of welding parts which are spaced apart and electrically connected to the temperature sensor, and is provided with a drainage port; A support member, the temperature sensor is mounted on the support member and connected to the adapter member; An insulating member is disposed between two adjacent welding portions.

13. An energy storage device, characterized in that: include: A plurality of battery devices according to any one of claims 1 to 11, wherein the battery devices are used to store or provide electrical energy.

14. An energy storage system, characterized in that: include: A power conversion device and an energy storage device as claimed in claim 13, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.

15. An electrical device, characterized in that: include: The battery device according to any one of claims 1 to 11, the energy storage device according to claim 13, or the energy storage system according to claim 14, wherein the battery device is used to store or provide electrical energy.

16. A charging network, characterized in that: include: A charging pile and an energy storage device as claimed in claim 13 or an energy storage system as claimed in claim 14, wherein the energy storage device is used to provide electrical energy to the charging pile.

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