Electric control apparatus, battery apparatus, and electric device

Abstract

The present application is applicable to the technical field of batteries, and provides an electric control apparatus, a battery apparatus, and an electric device. The electric control apparatus comprises a base assembly, and a power distribution element, a high-voltage busbar, a battery management main control board and a sampling circuit board which are arranged on the base assembly; the high-voltage busbar is electrically connected to the power distribution element; the battery management main control board is provided with a first connector; the sampling circuit board comprises a main body, and a sampling terminal and a second connector which are arranged on the main body; the sampling terminal is connected to the high-voltage busbar; and the second connector is electrically connected to the first connector. The technical solution provided by the embodiments of the present application can simplify the structure of a sampling member, thereby solving the technical problem in the related art that the sampling member occupies a large space and is not prone to assemble.

Description

Electrical control devices, battery devices and electrical equipment

[0001] Cross-references

[0002] This application incorporates the entire contents of International Patent Application No. PCT / CN2024 / 131851, filed on November 13, 2024, entitled “Electrical Control Device, Battery Device and Electrical Device”, which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of batteries, and in particular to an electronic control device, a battery device, and an electrical appliance. Background Technology

[0004] With the development of science and technology, new energy electric vehicles are gradually becoming more widespread. As one of the core components of electric vehicles, the battery is the energy hub, and battery technology is a crucial factor in the development of electric vehicles.

[0005] During the use of battery devices, parameters such as voltage and temperature need to be collected in real time to accurately understand the battery's operating status. In related technologies, a large number of wiring harnesses are set up inside the battery device for voltage or temperature sampling. However, these wiring harness-type sampling components occupy a lot of space and are difficult to assemble and maintain due to their complex wiring.

[0006] Application content

[0007] In view of this, embodiments of this application provide an electronic control device, a battery device, and an electrical device, which can solve the technical problems of large space occupation and difficulty in assembly of sampling components in related technologies.

[0008] An embodiment of the first aspect of this application provides an electronic control device, including a base assembly, and a power distribution element, a high-voltage switch, a battery management main control board, and a sampling circuit board disposed on the base assembly; the high-voltage switch is electrically connected to the power distribution element; the battery management main control board has a first connector; the sampling circuit board includes a body, and a sampling terminal and a second connector disposed on the body, the sampling terminal being connected to the high-voltage switch, and the second connector being electrically connected to the first connector.

[0009] In the electronic control device provided in this application embodiment, both the power distribution components and the battery management main control board are mounted on the base assembly. This eliminates the need for a protective casing for the battery management system, improving the assembly integration of the power distribution components and the battery management main control board. Furthermore, a sampling circuit board is provided, comprising a main body and sampling terminals and a second connector disposed on the main body. The sampling terminals are connected to the high-voltage switch, and the second connector is connected to the battery management main control board. In this way, the sampling circuit board can replace the traditional intermediate connector of the wiring harness to realize the connection between the high-voltage switch and the battery management main control board. Since the sampling circuit board has a planar structure, it can accommodate more complex wiring while occupying less space. This design simplifies the assembly process of the electronic control device, reduces assembly difficulty, and further improves the compactness of the components in the electronic control device. At the same time, since the casing structure connecting the wiring harness and the battery management system is eliminated, the arrangement of the components in the electronic control device can be more compact, resulting in a smaller space occupied by the electronic control device. When this electronic control device is applied in a battery device, it can provide more assembly space for the battery cell assembly, thereby increasing the energy storage capacity of the battery device.

[0010] In some embodiments, the main body of the sampling circuit board is a flexible circuit board.

[0011] In the above design, the flexible circuit board has good flexibility and can be bent or folded into various shapes, thereby meeting various complex wiring requirements, achieving a more reasonable layout and efficient conductive connection in a limited space.

[0012] In some embodiments, the first connector is a female socket and the second connector is a male plug, with the male plug inserted into the female socket.

[0013] In the above design, the battery management main control board and the sampling circuit board are connected by a plug-in interface, which simplifies the parts, reduces assembly difficulty, and makes it easy to operate.

[0014] In some embodiments, the sampling terminal is a sheet-like metal piece.

[0015] In the above design, the sheet metal parts have a large surface area and can be fixed to the high-voltage bar sheet by welding, bonding and other methods, which makes the assembly difficult and the connection reliable.

[0016] In some embodiments, the thickness of the sampling terminal is 0.2mm-0.3mm.

[0017] In the above design, the thickness range of the sampling terminal is reasonably designed, and the sampling terminal has good mechanical strength. It is not easy to break or deform during use, so it can maintain a reliable connection with the high voltage bar. At the same time, the sampling terminal occupies little space, which helps to realize the compact design of the electrical control device.

[0018] In some embodiments, the electronic control device includes a plurality of high-voltage transformers, the plurality of high-voltage transformers including a positive high-voltage transformer and a negative high-voltage transformer, and the sampling circuit board includes a plurality of sampling terminals, each sampling terminal being electrically connected to the positive high-voltage transformer and the negative high-voltage transformer respectively.

[0019] In the above design, the battery management main control board can sample the voltage of the high-voltage bar through the sampling circuit board, thereby accurately grasping the voltage status of the battery device and each power distribution component, and avoiding abnormal situations such as voltage or undervoltage.

[0020] In some embodiments, the sampling circuit board further includes a temperature sensor located near the sampling terminal on the main body, and the temperature sensor is used to collect the temperature of the sampling terminal.

[0021] In the above design, the battery management main control board can sample the temperature of the high-voltage bar through the sampling circuit board, and the temperature sensor position is reasonably designed, resulting in higher temperature sampling accuracy.

[0022] In some embodiments, the battery management main control board is located on one side of the base assembly in the width direction, and the high voltage bar and sampling circuit board are located at one end of the base assembly in the height direction. The battery management main control board and the sampling circuit board are arranged perpendicularly.

[0023] In the above design, the battery management main control board and the sampling circuit board are set vertically, and the connection path between the two is shorter and more reasonable, which can further simplify the structure of the sampling circuit board and reduce the assembly difficulty between the sampling circuit board and the battery management main control board.

[0024] In some embodiments, the second connector is located at one end of the main body along the width direction of the base assembly near the battery management main control board, and the sampling terminal is located on any side of the main body along the length direction of the base assembly.

[0025] In the above design, the second connector is located near the battery management main control board for easy connection with the first connector. The sampling terminal is located on the side of the main body, providing ample assembly space and flexible positioning for easy connection with the high-voltage switch.

[0026] In some embodiments, the main body includes a first part and a second part connected to each other. The first part extends along the width direction of the base assembly, and a second connector is disposed at one end of the first part along the width direction of the base assembly near the battery management main control board. The second part extends along the length direction of the base assembly, and a sampling terminal is disposed on any side of the second part along the width direction of the base assembly.

[0027] In the above design, by improving the main structure of the sampling circuit board, the spatial layout of the sampling circuit board is made more flexible, thereby making the sampling circuit board more adaptable and able to meet more complex wiring or connection requirements.

[0028] In some embodiments, the battery management main control board and the sampling circuit board are located at one end of the base assembly in the height direction, with the battery management main control board and the sampling circuit board arranged opposite to each other.

[0029] The above design provides an optional design structure that further improves the design flexibility of the battery management main control board and sampling circuit board.

[0030] In some embodiments, the electronic control device includes a plurality of high-voltage transformers, with adjacent high-voltage transformers spaced apart along the length of the base assembly, and the main body of the sampling circuit board is at least partially disposed between adjacent high-voltage transformers.

[0031] In the above design, the sampling circuit board is placed close to the high-voltage switch, and the physical distance between the two is short. This helps to reduce the difficulty of connecting the sampling terminal to the high-voltage switch and reduce the transmission loss and delay of the sampling signal.

[0032] In some embodiments, the main body is provided with a positioning hole, and the base assembly is provided with a positioning post, which is inserted into the positioning hole.

[0033] In the above design, the matching structure of the positioning post and the positioning hole can fix the position of the sampling circuit board and provide support for the sampling circuit board, thereby reducing the risk of displacement or deformation of the sampling circuit board.

[0034] In some embodiments, the battery management main control board includes a substrate, and a first connector is soldered onto the substrate.

[0035] In the above design, the first connector has a high connection strength with the substrate, and the first connector is not prone to loosening, falling off or poor contact during use, and can be used for a long time.

[0036] An embodiment of the second aspect of this application provides a battery device, including a battery cell assembly and an electronic control device as described in the first aspect. The battery cell assembly includes a plurality of battery cells, and the battery cells are electrically connected to the electronic control device.

[0037] The battery device provided in this application embodiment reduces the assembly difficulty of the battery device by adopting the electronic control device in the first aspect, while improving the assembly efficiency and energy storage capacity, thereby making the battery device more economical.

[0038] An embodiment of the third aspect of this application provides an electrical device including the battery device of the second aspect, the battery device being used to store or provide electrical energy.

[0039] The electrical equipment provided in this application embodiment reduces the difficulty of assembly by adopting the battery device in the second aspect, while improving assembly efficiency and energy storage capacity, thereby making the electrical equipment more economical.

[0040] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 is a structural schematic diagram of the vehicle provided in an embodiment of this application;

[0043] Figure 2 is an exploded view of the battery device provided in an embodiment of this application;

[0044] Figure 3 is a schematic diagram of the structure of a battery cell provided in an embodiment of this application;

[0045] Figure 4 is a schematic diagram of the structure of an electronic control device provided in an embodiment of this application;

[0046] Figure 5 is an exploded view of the electronic control device shown in Figure 4;

[0047] Figure 6 is an assembly diagram of some components in the electronic control device shown in Figure 4;

[0048] Figure 7 is a schematic diagram of the sampling circuit board in the electronic control device shown in Figure 4;

[0049] Figure 8 is a structural schematic diagram of the electronic control device shown in Figure 4 from another perspective;

[0050] Figure 9 is a side sectional view of the electronic control device shown in Figure 8;

[0051] Figure 10 is a schematic diagram of the structure of an electronic control device provided in another embodiment of this application;

[0052] Figure 11 is a schematic diagram of the sampling circuit board in the electronic control device shown in Figure 10;

[0053] Figure 12 is a schematic diagram of the overall structure of the electronic control device provided in the embodiment of this application.

[0054] The markings in the diagram represent the following: 1000, Vehicle; 100, Battery Unit; 200, Controller; 300, Motor; 10, Housing; 11, First Housing; 12, Second Housing; 20, Battery Cell Assembly; 21, Battery Cell; 30, Electronic Control Device; 31, Base Assembly; 311, Positioning Post; 312, Mounting Slot; 32, Power Distribution Component; 33, High Voltage Brake; 34, Battery Management Main Control Board; 341, First Connector; 342, Base Plate; 35, Sampling Circuit Board; 351, Main Body; 3511, Positioning Hole; 351a, First Part; 351b, Second Part; 352, Sampling Terminal; 353, Second Connector; 354, Temperature Sensor; 40, Bottom Shell; 50, Top Shell; X, Length Direction of Base Assembly; Y, Width Direction of Base Assembly; Z, Height Direction of Base Assembly. Embodiments of the present invention

[0055] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0057] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0058] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0060] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0061] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0062] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0063] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0064] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0065] A battery apparatus typically includes a battery cell assembly, a battery distribution unit (BDU), and a battery management system (BMS). The battery cell assembly provides voltage and capacity and can comprise multiple battery cells connected in series, parallel, or a combination of these cells via busbars. The battery distribution unit controls the smooth operation of the charging and discharging circuits to regulate the distribution of battery energy. The distribution unit can include various power distribution components and electrical connectors that enable circuit connections. A battery management system (BMS) is primarily responsible for the intelligent management and maintenance of the battery system, monitoring the status of individual battery cells, and ensuring safe battery operation. A BMS includes a Battery Management Unit (BMU), which comprises data acquisition circuitry, sensors, a microcontroller, etc., used to process the collected data and communicate with other systems in the power-consuming equipment. In a distributed architecture, the BMS may also include a Cell Supervisory Controller (CSC). The CSC is responsible for detecting a certain number of individual battery cells or modules, collecting voltage, current, and temperature data, and sending this information to the BMS. The CSC mainly includes sensors and data acquisition circuitry for collecting data from individual battery cells.

[0066] In related technologies, battery cells, power distribution devices, and battery management systems are distributed within the battery device. The battery management system needs to be connected to the battery cells or the busbars of the battery cell assembly via wiring harnesses to sample voltage or temperature. In this design, the power distribution components, battery management system, and wiring harnesses occupy a relatively large space within the battery device, which affects the energy storage capacity of the battery device. Furthermore, the wiring of a large number of wiring harnesses is complex, difficult to assemble, and difficult to maintain and manage later.

[0067] Based on the above reasons, this application provides an electronic control device, including a base assembly, and power distribution components, a high-voltage switch, a battery management main control board, and a sampling circuit board disposed on the base assembly. The battery management main control board has a first connector, and the sampling circuit board includes a main body, and sampling terminals and a second connector disposed on the main body. The sampling terminals are connected to the high-voltage switch, and the second connector is connected to the first connector of the battery management main control board. Thus, the sampling circuit board can replace the traditional intermediate connector in the wiring harness to achieve the connection between the high-voltage switch and the battery management main control board. Since the sampling circuit board has a planar structure, it can accommodate more complex wiring while occupying less space. Therefore, this design simplifies the assembly process of the electronic control device, reduces assembly difficulty, and improves the compactness of the components in the electronic control device.

[0068] For ease of explanation, the following embodiments provide an electrical device using a vehicle as an example.

[0069] Please refer to Figure 1, which is a structural schematic diagram of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and driving.

[0070] In some embodiments, the battery device 100 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.

[0071] Please refer to Figure 2, which is an exploded view of a battery device 100 provided in some embodiments of this application. The battery device 100 includes a housing 10 and a battery cell 21, with the battery cell 21 housed within the housing 10. The housing 10 provides a space for the battery cell 21, and can have various structures. In some embodiments, the housing 10 may include a first housing 11 and a second housing 12, which overlap each other, jointly defining a space for accommodating the battery cell 21. The second housing 12 may be a hollow structure with one open end, and the first housing 11 may be a plate-like structure, covering the open side of the second housing 12 so that the first housing 11 and the second housing 12 jointly define the space. Alternatively, both the first housing 11 and the second housing 12 may be hollow structures with one open side, with the open side of the first housing 11 covering the open side of the second housing 12. Of course, the box 10 formed by the first box 11 and the second box 12 can be of various shapes, such as a cylinder, a cuboid, etc.

[0072] In some embodiments, the housing 10 may be part of the chassis structure of the vehicle 1000. For example, a portion of the housing 10 may be at least a portion of the floor of the vehicle 1000, or a portion of the housing 10 may be at least a portion of the crossbeams and longitudinal beams of the vehicle 1000.

[0073] In some embodiments, the battery device 100 may not include the housing 10, but instead connect multiple battery cells 21 and assemble them into the vehicle 1000 after forming a whole by necessary fixing structures.

[0074] In the battery device 100, there can be multiple battery cells 21. These multiple battery cells 21 can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 21 are connected in both series and parallel configurations. Multiple battery cells 21 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 21 is housed within the housing 10. Alternatively, multiple battery cells 21 can first be connected in series, parallel, or in a mixed configuration to form a battery cell assembly 20, and then the multiple battery cell assemblies 20 can be connected in series, parallel, or in a mixed configuration to form a whole, which is then housed within the housing 10. The battery device 100 may also include other structures; for example, the battery device 100 may also include a busbar component for realizing the electrical connection between the multiple battery cells 21.

[0075] Please refer to Figure 3, which is a schematic diagram of the structure of a battery cell 21 provided in some embodiments of this application. A battery cell 21 refers to the smallest unit constituting the battery device 100. Each battery cell 21 can be a secondary battery, meaning a battery cell 21 that can be recharged after discharge to activate its active materials and continue to be used. The battery cell 21 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., but is not limited to these. The battery cell 21 can be cylindrical, flat, cuboid, or other shapes.

[0076] In some embodiments, the battery device 100 further includes an electronic control device 30, which can be electrically connected to the battery cell assembly 20 for managing and transmitting power from the battery cell assembly 20 to the electrical device. The electronic control device 30 includes a power distribution element 32, a high-voltage switch 33, and a battery management main control board 34. The power from the battery cell assembly 20 is collected by the high-voltage switch 33 and transmitted to the power distribution element 32, and then transmitted to the electrical device via the power distribution element 32. The voltage and temperature parameters of the battery cell assembly 20 are collected and monitored by the battery management main control board 34. The battery management main control board 34 controls the on / off state of the circuit in the power distribution element 32, thereby controlling the power transmission from the battery cell assembly 20 to the electrical device.

[0077] The technical solutions provided in the embodiments of this application will be described below with reference to Figures 4 to 9. In the embodiments provided in this application, the X direction is the length direction of the base assembly 31, the Y direction is the width direction of the base assembly 31, and the Z direction is the height direction of the base assembly 31. The X, Y, and Z directions are perpendicular to each other, and the length of the base assembly 31 is not less than the width of the base assembly 31.

[0078] Please refer to Figures 4 to 9. Figure 4 is a structural schematic diagram of the electronic control device 30 provided in some embodiments of this application. Figure 5 is an exploded view of the electronic control device 30 shown in Figure 4. Figure 6 is an assembly diagram of the high-voltage switch 33, the battery management main control board 34, and the sampling circuit board 35 in Figure 4. Figure 7 is a structural schematic diagram of the sampling circuit board 35 provided in some embodiments of this application. Figure 8 is a structural schematic diagram of the electronic control device 30 shown in Figure 4 from another perspective. Figure 9 is a cross-sectional view of the electronic control device 30 shown in Figure 8. An embodiment of the first aspect of this application provides an electronic control device 30. The electronic control device 30 includes a base assembly 31, and a power distribution element 32, a high-voltage switch 33, a battery management main control board 34, and a sampling circuit board 35 disposed on the base assembly 31. The high-voltage switch 33 is electrically connected to the power distribution element 32. The battery management main control board 34 has a first connector 341. The sampling circuit board 35 includes a main body 351, a sampling terminal 352 and a second connector 353 disposed on the main body 351, the sampling terminal 352 is connected to the high voltage bar 33, and the second connector 353 is electrically connected to the first connector 341.

[0079] The base assembly 31 is the main body 351 of the electrical control device 30, used to support and fix the various components, that is, it is a load-bearing structure. The base assembly 31 can be made of insulating material to effectively isolate the current between the various electrical components and prevent short circuits or leakage problems.

[0080] The power distribution element 32 is a working element in the electronic control device 30. For example, the power distribution element 32 can be a relay, shunt, pre-charge resistor, fuse, etc. Due to differences in shape and structure, the power distribution elements 32 are installed in different ways on the base assembly 31. The power distribution element 32 can be directly installed on the base assembly 31, for example, by screws, snap-fit ​​structures, etc., at the stepped structure of the base assembly 31; or, a corresponding slot structure or cavity can be opened on the base assembly 31 to accommodate the power distribution element 32.

[0081] The high-voltage switch 33 is a conductive connector. In the battery device 100, the high-voltage switch 33 can connect multiple battery cells 21 or battery cell assemblies 20 to combine and distribute current. The high-voltage switch 33 can also connect various power distribution components 32, such as relays, shunts, fuses, etc., thereby forming high-voltage discharge circuits, high-voltage charging circuits, and pre-charge circuits of the battery device 100. In the electronic control device 30, the high-voltage switch 33 provides sampling points for connecting to the sampling circuit board 35 to sample parameters such as voltage and temperature. The high-voltage switch 33 can be assembled onto the base assembly 31 using screws, snap-fit ​​structures, etc.; alternatively, the high-voltage switch 33 can be partially embedded in the housing of the base assembly 31, for example, a portion of the high-voltage switch 33 can be integrally injection molded with the housing of the base assembly 31. The high-voltage switch 33 is made of conductive materials, such as copper or aluminum. The high-voltage switch 33 can have various shapes, such as a long strip structure.

[0082] The battery management main control board 34 is a key component of the battery management system. It can be the main control board of the battery management system or a circuit board integrating the circuits of the battery management unit and the slave control unit. The battery management main control board 34 can be directly mounted on the base assembly 31, for example, by connecting the two through appropriate connection structures such as screws, rivets, or snap-fit ​​structures; alternatively, the battery management main control board 34 can be indirectly mounted on the base assembly 31 through an intermediate structure, such as a bracket or fixing plate. The battery management main control board 34 includes one or more first connectors 341 to connect one or more sampling circuit boards 35. It should be noted that the battery management system should have a protective casing to protect the internal components such as the battery management main control board 34. By mounting the battery management main control board 34 on the base assembly 31, and using the base assembly 31 as a support for their respective positions, the protective casing of the battery management system can be omitted.

[0083] The sampling circuit board 35 is used to collect voltage or temperature information from the high-voltage switch 33 and transmit the collected information to the battery management main control board 34. The main body 351 is the foundation of the sampling circuit board 35. Conductive lines are provided on the main body 351 for electrical connection with the battery management main control board 34. Various electronic components can be arranged on the main body 351 to perform preliminary processing of the information collected by the sampling terminal 352. The shape and size of the main body 351 are designed according to the design requirements and spatial layout of the electronic control device 30. The sampling terminal 352 is used to connect to the high-voltage switch 33 and to collect voltage or temperature signals from the high-voltage switch 33. Depending on the type of signal collected, the material of the sampling terminal 352 and the connection method between it and the high-voltage switch 33 vary. For example, when collecting voltage signals, the sampling terminal 352 needs to have good conductivity, and an electrical connection is required between the sampling terminal 352 and the high-voltage switch 33; when collecting temperature signals, the sampling terminal 352 needs to have good thermal conductivity, and a mechanical connection is sufficient between the sampling terminal 352 and the high-voltage switch 33. The number and placement of sampling terminals 352 depend on design requirements. For example, multiple sampling terminals 352 can be provided on the main body 351, and these terminals can be connected to the same or different high-voltage plates 33 to sample different positions of the high-voltage plates 33 or different high-voltage plates 33. Sampling terminals 352 can be attached to the main body 351 by soldering, mounting, fastener connection, etc., but are not limited to these methods. The second connector 353 is used to connect to the battery management main control board 34 to achieve signal transmission. The second connector 353 needs to be compatible with the first connector 341 to ensure accurate signal transmission. The second connector 353 can be integrally formed with the main body 351, or it can be attached to the main body 351 by soldering, mounting, fastener connection, etc., but is not limited to these methods.

[0084] In the electronic control device 30 provided in this application embodiment, both the power distribution component 32 and the battery management main control board 34 are mounted on the base assembly 31. This eliminates the need for a protective casing for the battery management system, improving the assembly integration of the power distribution component 32 and the battery management main control board 34. Furthermore, a sampling circuit board 35 is provided. The sampling circuit board 35 includes a main body 351 and sampling terminals 352 and a second connector 353 disposed on the main body 351. The sampling terminals 352 are connected to the high-voltage switch 33, and the second connector 353 is connected to the battery management main control board 34. In this way, the sampling circuit board 35 can replace the traditional intermediate connector of the wiring harness, realizing the connection between the high-voltage switch 33 and the battery. The connection of the main control board 34 is managed by the sampling circuit board 35, which has a planar structure, allowing for more complex wiring and less space occupation. This design simplifies the assembly process of the electronic control device 30, reduces assembly difficulty, and further improves the compactness of the components in the electronic control device 30. At the same time, since the connecting harness and the housing structure of the battery management system are eliminated, the arrangement of the components in the electronic control device 30 can be more compact, thus the electronic control device 30 occupies less space. When the electronic control device 30 is applied in the battery device 100, it can provide more assembly space for the battery cell assembly 20, thereby increasing the energy storage capacity of the battery device 100.

[0085] In some embodiments, the main body 351 of the sampling circuit board 35 is a flexible printed circuit (FPC).

[0086] The flexible circuit board is made of a flexible substrate and has good flexibility. It can be bent or folded into various shapes. In the electrical control device 30, the flexible circuit board can meet various complex wiring requirements, achieve a more reasonable layout and achieve efficient conductive connection in a limited space.

[0087] In some other embodiments, if the base assembly 31 can provide a large assembly space, or if the sampling circuit board 35 is required to maintain its shape, the body 351 of the sampling circuit board 35 can also be designed as a rigid circuit board.

[0088] Referring to Figures 4 and 5, in some embodiments, the first connector 341 on the battery management main control board 34 is a female socket, and the second connector 353 on the sampling circuit board 35 is a male plug, which is inserted into the female socket.

[0089] The female socket has a slot with metal contacts formed inside. The male plug has pins or pins. When the male plug is inserted into the female socket, the metal contacts inside the female socket make close contact with the pins or pins of the male plug and achieve a good electrical connection.

[0090] In the above design, the battery management main control board 34 and the sampling circuit board 35 are connected by plug-in connection, which realizes the simplification of parts, low assembly difficulty, and easy operation.

[0091] In some other embodiments, the first connector 341 and the second connector 353 are still designed as plate structures, which can be connected by welding, bonding or pressing, and can be locked with fasteners.

[0092] In some embodiments, the sampling terminal 352 is a sheet-like metal piece.

[0093] Sheet-like structures have a certain thickness and width, and have connecting planes. Their shapes can be various, such as rectangles, trapezoids, etc.

[0094] Because of its large surface area, the sheet metal part can be fixed to the high voltage bar 33 by welding, bonding and other methods. The assembly is easy and the connection is highly reliable. At the same time, the sheet metal part has a flexible size design and can provide a large contact area. The large contact area helps to collect the voltage or temperature signal on the high voltage bar 33 more accurately. Therefore, this design is also conducive to improving the acquisition accuracy.

[0095] In some embodiments, the sampling terminal 352 has a sheet-like structure and a thickness of 0.2mm-0.3mm.

[0096] For example, the thickness of the sampling terminal 352 can be 0.2mm, 0.22mm, 0.24mm, 0.26mm, 0.28mm, or 0.3mm.

[0097] The sampling terminal 352 has a sheet-like structure with two large surfaces. The large surfaces can be used to connect the high-voltage bar 33. The thickness of the sampling terminal 352 refers to the dimension perpendicular to the two large surfaces, that is, the distance between the two large surfaces.

[0098] The thickness of the sampling terminal 352 affects its structural strength and space occupation. In the above design, the thickness range of the sampling terminal 352 is reasonably designed. The sampling terminal 352 has good mechanical strength and is not easy to break or deform during use, so it can maintain a reliable connection with the high voltage bar 33. At the same time, the sampling terminal 352 occupies less space, which helps to achieve a compact design of the electronic control device 30.

[0099] It is understood that in some other embodiments, if the strength requirement between the sampling terminal 352 and the high voltage plate 33 is high, the thickness of the sampling terminal 352 can also be designed to be 0.4mm, 0.5mm, 0.6mm or larger.

[0100] In some embodiments, the sampling terminal 352 is designed as a sheet metal part, and the sampling terminal 352 and the high voltage bar plate 33 can be connected and fixed by welding, bonding or other methods; or, pins, riveting posts or other structures can be designed on the high voltage bar plate 33, and mounting holes can be designed on the sampling terminal 352, with pins, riveting posts or other fasteners passing through the high voltage sampling part and the high voltage bar plate 33 in sequence to achieve the connection between the two.

[0101] In some embodiments, the main body 351 of the sampling circuit board 35 is a flexible circuit board, and the sampling terminal 352 can be a nickel sheet.

[0102] Nickel sheets have good electrical conductivity and mechanical strength, enabling them to effectively transmit electrical signals and can be used reliably for a long time.

[0103] In some other embodiments, the sampling terminal 352 may also be a copper sheet or an aluminum sheet, and the sampling terminal 352 may also be designed as a wire or filament structure, such as a copper wire.

[0104] Referring to Figure 6, in some embodiments, the sampling circuit board 35 is connected to a plurality of high-voltage plates 33.

[0105] The sampling circuit board 35 is designed with multiple sampling terminals 352, which are connected to different positions of the high voltage bar 33 or to different high voltage bars 33.

[0106] With the above design, on the one hand, the sampling circuit board 35 can sample the signals of the high voltage bar 33 at different locations, thereby enabling more comprehensive monitoring of the working status of the battery device 100. On the other hand, this design improves the practicality of the sampling circuit board 35, enabling more signal acquisition with fewer sampling circuit boards 35, which helps to further simplify the structure of the electronic control device 30 and reduce the assembly difficulty of the electronic control components.

[0107] In some embodiments, the electronic control device 30 includes a plurality of high-voltage plates 33, the plurality of high-voltage plates 33 including a positive high-voltage plate and a negative high-voltage plate, and the sampling circuit board 35 includes a plurality of sampling terminals 352, each sampling terminal 352 being electrically connected to the positive high-voltage plate and the negative high-voltage plate respectively.

[0108] The positive high-voltage switch is connected to the positive terminal of the battery cell 21 and the positive terminal interface of the power distribution element 32, and the negative high-voltage switch is connected to the negative terminal of the battery cell 21 and the negative terminal interface of the power distribution element 32.

[0109] During voltage sampling, both the high-voltage switch 33 connected to the positive terminal and the high-voltage switch 33 connected to the negative terminal need to be sampled simultaneously to obtain the required voltage data. In the above design, the sampling circuit board 35 can be used for voltage sampling. Sampling the voltage of the high-voltage switch 33 can more accurately grasp the voltage status of the battery device 100 and each power distribution component 32, avoiding abnormal conditions such as voltage or undervoltage. At the same time, sampling the voltage of the positive and negative terminals of the same power distribution component 32, such as sampling the voltage of the positive and negative high-voltage switch 33 connected to the relay, can also determine whether the power distribution component 32 is operating normally.

[0110] Referring to Figures 5 and 7, in some embodiments, the sampling circuit board 35 further includes a temperature sensor 354, which is located on the main body 351 near the sampling terminal 352 and is used to collect the temperature of the sampling terminal 352.

[0111] Temperature sensor 354 is used to collect temperature information of a target object and convert it into an electrical signal that can be measured and processed.

[0112] The sampling terminal 352 is directly connected to the high-voltage bar 33. The temperature near the sampling terminal 352 is closer to the actual temperature of the high-voltage bar 33. In the above design, the position of the temperature sensor 354 is reasonably designed, and the temperature sampling accuracy is higher.

[0113] It is understandable that, considering the layout requirements of the various components within the electronic control device 30, or the design of other electronic components on the sampling circuit board 35, the temperature sensor 354 may also be located at other positions on the main body 351.

[0114] It should be noted that in some embodiments, the same sampling terminal 352 can be used to perform voltage sampling and temperature sampling simultaneously.

[0115] Referring to Figures 6, 8, and 9, in some embodiments, the battery management main control board 34 is located on one side of the base assembly 31 in the width direction Y, and the high voltage bar 33 and the sampling circuit board 35 are located at one end of the base assembly 31 in the height direction Z. The battery management main control board 34 and the sampling circuit board 35 are arranged perpendicularly.

[0116] For example, in one specific embodiment, the base assembly 31 includes a peripheral side surface, the battery management main control board 34 is disposed on the peripheral side surface of the base assembly 31 and extends along the length direction X of the base assembly 31, the high voltage bar 33 and the sampling circuit board 35 are disposed at the bottom of the base assembly 31, and the high voltage bar 33 and the sampling circuit board 35 are located on one side of the thickness direction (that is, the width direction Y of the base assembly 31) of the battery management main control board 34.

[0117] With the above design, the battery management main control board 34 and the sampling circuit board 35 are arranged vertically, and the connection path between the two is shorter and more reasonable. This can further simplify the structure of the sampling circuit board 35 and reduce the assembly difficulty between the sampling circuit board 35 and the battery management main control board 34. At the same time, this design also helps to simplify the connection between the power distribution component 32 and the battery management main control board 34.

[0118] Referring to Figure 6, in some embodiments, the second connector 353 is located at one end of the main body 351 along the width direction Y of the base assembly 31 near the battery management main control board 34, and the sampling terminal 352 is located on any side of the main body 351 along the length direction Y of the base assembly 31.

[0119] For example, the main body 351 includes opposite ends along the width direction Y of the base assembly 31 and opposite sides along the length direction X of the base assembly 31. The sampling circuit board 35 includes a plurality of sampling terminals 352, which are distributed on both sides of the main body 351.

[0120] In the above design, the second connector 353 is located near the battery management main control board 34, which facilitates connection with the first connector 341. The sampling terminal 352 is located on the side of the main body 351, which provides ample assembly space and flexible position design, making it convenient to connect with the high voltage bar 33.

[0121] Please refer to Figures 10 and 11. Figure 10 is a schematic diagram of the structure of an electronic control device 30 provided in some embodiments of this application, and Figure 11 is a schematic diagram of the structure of a sampling circuit board 35 in the electronic control device 30 shown in Figure 10. In some embodiments, the main body 351 of the sampling circuit board 35 includes a first part 351a and a second part 351b connected to each other. The first part 351a extends along the width direction Y of the base assembly 31, and a second connector 353 is disposed at one end of the first part 351a along the width direction Y of the base assembly 31 near the battery management main control board 34. The second part 351b extends along the length direction X of the base assembly 31, and a sampling terminal 352 is disposed on any side of the second part 351b along the width direction Y of the base assembly 31.

[0122] The first part 351a includes two opposite ends along the width direction Y of the base assembly 31. One end is provided with a second connector 353 for connecting to the battery management main control board 34, and the other end is connected to the second part 351b. That is, the first part 351a is located between the battery management main control board 34 and the second part 351b. The second part 351b includes two opposite sides along the width direction Y of the base assembly 31. The sampling circuit board 35 may include multiple sampling terminals 352, which are distributed on both sides of the second part 351b. The shapes of the first part 351a and the second part 351b may be, but are not limited to, elongated strips.

[0123] In the above embodiments, by improving the structure of the main body 351 of the sampling circuit board 35, the spatial layout of the sampling circuit board 35 becomes more flexible, thereby making the sampling circuit board 35 more adaptable and able to meet more complex wiring or connection requirements. In some cases, the design of the second part 351b also enables the sampling circuit to achieve a larger coverage area, thereby enabling it to connect to more high-voltage plates 33.

[0124] Referring to Figures 4 and 6, in some embodiments, the electronic control device 30 includes a plurality of high-voltage plates 33 arranged along the length direction X of the base assembly 31, with adjacent high-voltage plates 33 spaced apart, and the main body 351 of the sampling circuit board 35 is at least partially disposed between adjacent high-voltage plates 33.

[0125] Multiple high-voltage transformers 33 need to be spaced out to avoid short circuits. In the electrical control device 30, the multiple high-voltage transformers 33 can be arranged along the length direction X and the width direction Y of the base assembly 31, depending on the arrangement and connection requirements of the power distribution elements 32. For example, in a specific embodiment, referring to Figures 4 and 8, multiple power distribution elements 32 are arranged on the base assembly 31, spaced out along the length direction X of the base assembly 31. The multiple high-voltage transformers 33 are divided into two rows along the width direction Y of the base assembly 31, and are arranged sequentially at intervals corresponding to the power distribution elements 32 along the length direction X of the base assembly 31.

[0126] In one specific embodiment, the shape and size of the main body 351 of the sampling circuit board 35 are adapted to the gap between adjacent high-voltage plates 33, and the main body 351 is disposed between adjacent high-voltage plates 33.

[0127] In one specific embodiment, the main body 351 of the sampling circuit board 35 includes a first part 351a and a second part 351b, wherein the shape and size of the first part 351a are adapted to the gap between adjacent high voltage plates 33, and the first part 351a is disposed between adjacent high voltage plates 33.

[0128] On the one hand, the sampling circuit board 35 is positioned close to the high-voltage switch 33, and the physical distance between the two is short, which helps to reduce the difficulty of connecting the sampling terminal 352 and the high-voltage switch 33, and reduce the transmission loss and delay of the sampling signal. On the other hand, this design makes the layout of the high-voltage switch 33 and the sampling circuit board 35 more compact and the space utilization efficiency higher.

[0129] In some embodiments, the battery management main control board 34 and the sampling circuit board 35 are located at one end of the base assembly 31 in the height direction Z, with the battery management main control board 34 and the sampling circuit board 35 being disposed opposite each other.

[0130] For example, in one specific embodiment, the base assembly 31 includes a top and a bottom in the height direction Z, and the battery management main control board 34 and the sampling circuit board 35 are disposed at the bottom of the base assembly 31.

[0131] The second connector 353 can be located at any position on the main body 351 and face the battery management main control board 34.

[0132] The above embodiments provide an optional design structure that further improves the design flexibility of the battery management main control board 34 and the sampling circuit board 35.

[0133] Referring to Figures 4 and 7, in some embodiments, the main body 351 of the sampling circuit board 35 is provided with a positioning hole 3511, and the base assembly 31 is provided with a positioning post 311, which is inserted into the positioning hole 3511.

[0134] The positioning post 311 is used to assist in positioning the sampling circuit board 35 and should have good mechanical strength, capable of withstanding a certain amount of mechanical stress without deformation. The positioning post 311 can be cylindrical or prismatic in shape. The positioning post 311 can be made of plastic or other insulating composite materials.

[0135] The shape and size of the positioning hole 3511 should be adapted to the positioning post 311 to ensure that the two can fit together tightly.

[0136] In some cases, the sampling circuit board 35 is a flexible circuit board with a large size, which poses a certain risk of displacement or deformation during use. The cooperative structure of the positioning post 311 and the positioning hole 3511 can fix the position of the sampling circuit board 35 and provide support for the sampling circuit board 35, thereby reducing the risk of displacement or deformation of the sampling circuit board 35. At the same time, the positioning post 311 can also be used to determine the installation position. By guiding the sampling circuit board 35 to be installed in the preset position, it is also beneficial to improve the connection accuracy between the sampling circuit board 35 and the high voltage bar 33 and the battery management main control board 34.

[0137] Referring to Figure 6, in some embodiments, the battery management main control board 34 includes a substrate 342, and a first connector 341 is soldered onto the substrate 342.

[0138] The substrate 342 is the basic part of the battery management main control board 34. The substrate 342 can provide a supporting foundation for the first connector 341 and other electronic components, and provide the necessary electrical connection foundation. Various circuit traces can be set on the substrate 342, and vias, pads and other conductive structures can also be designed.

[0139] The number and location of the first connectors 341 are adapted to the sampling circuit board 35.

[0140] In the above design, the first connector 341 has a high connection strength with the substrate 342. The first connector 341 is not prone to loosening, falling off or poor contact during use, and can be used for a long time.

[0141] In some other embodiments, the substrate 342 may be a multilayer board, and the first connector 341 may be directly embedded in the multilayer board. Alternatively, the first connector 341 may be directly mounted on the substrate 342 by surface mount technology.

[0142] Please refer to Figures 4 and 12. Figure 12 is a schematic diagram of the overall structure of the electronic control device 30 provided in an embodiment of this application. In some embodiments, the electronic control device 30 further includes a bottom shell 40 and a top shell 50. The bottom shell 40 covers the bottom end of the base assembly 31, and the top shell 50 covers the top end of the base assembly 31. The bottom shell 40 and the top shell 50 together form a receiving space to accommodate the base assembly 31, power distribution components 32, high-voltage circuit board 33, battery management main control board 34, and sampling circuit board 35, etc. The bottom shell 40 and the top shell 50 can provide physical protection for the various devices in the electronic control device 30. The connection method between the bottom shell 40 and the base assembly 31 can be, but is not limited to, threaded connection, snap-fit, plug-in, etc., and the connection method between the top shell 50 and the base assembly 31 can be, but is not limited to, threaded connection, snap-fit, plug-in, etc.

[0143] Referring to Figures 4 and 7, in a specific embodiment provided in this application, the electronic control device 30 includes a base assembly 31, power distribution components 32, high-voltage switches 33, a battery management main control board 34, and a sampling circuit board 35. The base assembly 31 has multiple independent mounting slots 312 arranged along the length X direction of the base assembly 31, and multiple power distribution components 32 are respectively disposed within the multiple mounting slots 312. Multiple high-voltage switches 33 are disposed at the bottom of the base assembly 31, with the high-voltage switches 33 positioned opposite to and electrically connected to the corresponding power distribution components 32. The battery management main control board 34 is disposed on one peripheral side of the base assembly 31 and extends along the length X direction of the base assembly 31. The battery management main control board 34 has a first connector 341, which is a female socket. The sampling circuit board 35 is located at the bottom of the base assembly 31. Along the length direction X of the base assembly 31, the sampling circuit board 35 is located between two adjacent high voltage plates 33. The sampling circuit board 35 includes a main body 351, a second connector 353 and multiple sampling terminals 352. The second connector 353 is located at one end of the main body 351 near the battery management main control board 34. The second connector 353 is a male plug and is inserted into the first connector 341. The multiple sampling terminals 352 are located on different sides of the main body 351 and are connected to multiple high voltage plates 33.

[0144] The sampling terminal 352 is a nickel sheet with a thickness of 0.2mm-0.3mm. For example, the thickness of the sampling terminal 352 can be 0.2mm, 0.22mm, 0.24mm, 0.26mm, 0.28mm, or 0.3mm.

[0145] In the electronic control device 30 provided in the above embodiment, the sampling circuit board 35 is used to replace the traditional wire harness intermediate connector, realizing the connection between the high voltage bridge 33 and the battery management main control board 34. Since the sampling circuit board 35 has a planar structure, it can lay out more complex wiring and occupy less space. Therefore, this design can simplify the assembly process of the electronic control device 30, reduce the assembly difficulty, and improve the compactness of each component in the electronic control device 30. At the same time, since the outer shell structure of the connecting wire harness and the battery management system is eliminated, the arrangement of each component in the electronic control device 30 can be more compact, so the electronic control device 30 occupies less space. When the electronic control device 30 is applied in the battery device 100, it can provide more assembly space for the battery cell assembly 20, thereby increasing the energy storage capacity of the battery device 100.

[0146] Referring to Figures 10 and 11, in a specific embodiment provided in this application, the electronic control device 30 includes a base assembly 31, power distribution components 32, high-voltage switches 33, a battery management main control board 34, and a sampling circuit board 35. The base assembly 31 has multiple independent mounting slots 312 arranged along the length direction X of the base assembly 31, and multiple power distribution components 32 are respectively disposed within the multiple mounting slots 312. Multiple high-voltage switches 33 are disposed at the bottom of the base assembly 31, with the high-voltage switches 33 positioned opposite to the power distribution components 32 and electrically connected to the corresponding power distribution components 32. The battery management main control board 34 is disposed on one peripheral side of the base assembly 31 and extends along the length direction X of the base assembly 31. The battery management main control board 34 has a first connector 341, which is a female socket. The sampling circuit board 35 is located at the bottom of the base assembly 31. The sampling circuit board 35 includes a main body 351, a second connector 353, and multiple sampling terminals 352. The main body 351 includes a first part 351a and a second part 351b connected to each other. The first part 351a is elongated and extends along the width direction Y of the base assembly 31. The second part 351b is elongated and extends along the length direction X of the base assembly 31. Along the length direction X of the base assembly 31, the first part 351a is located between two adjacent high-voltage plates 33. The second connector 353 is located at one end of the first part 351a near the battery management main control board 34. The second connector 353 is a male plug and is inserted into the first connector 341. Multiple sampling terminals 352 are located on different sides of the second part 351b and connected to multiple high-voltage plates 33.

[0147] The sampling terminal 352 is a nickel sheet with a thickness of 0.2mm-0.3mm. For example, the thickness of the sampling terminal 352 can be 0.2mm, 0.22mm, 0.24mm, 0.26mm, 0.28mm, or 0.3mm.

[0148] In the electronic control device 30 provided in the above embodiment, the sampling circuit board 35 replaces the traditional wire harness intermediate connector, realizing the connection between the high voltage plate 33 and the battery management main control board 34. Since the sampling circuit board 35 has a planar structure, it can lay more complex wiring and occupy less space. Therefore, this design can simplify the assembly process of the electronic control device 30, reduce the assembly difficulty, and improve the compactness of each component in the electronic control device 30. Furthermore, by improving the structure of the main body 351 of the sampling circuit board 35, the spatial layout of the sampling circuit board 35 is more flexible, so the sampling circuit board 35 is more adaptable and can meet more complex wiring or connection requirements. In addition, since the outer shell structure of the connecting wire harness and the battery management system is eliminated, the arrangement of each component in the electronic control device 30 can be more compact, so the electronic control device 30 occupies less space. When the electronic control device 30 is applied in the battery device 100, it can provide more assembly space for the battery cell assembly 20, thereby increasing the energy storage capacity of the battery device 100.

[0149] An embodiment of the second aspect of this application provides a battery device 100, including a battery cell assembly 20 and an electronic control device 30 as described in the first aspect. The battery cell assembly 20 includes a plurality of battery cells 21, and the battery cells 21 are electrically connected to the electronic control device 30.

[0150] The battery device 100 provided in this application embodiment reduces the assembly difficulty of the battery device 100 by adopting the electronic control device 30 in the first aspect, while improving the assembly efficiency and energy storage capacity, thereby making the battery device 100 more economical.

[0151] An embodiment of the third aspect of this application provides an electrical device including the battery device 100 of the second aspect, the battery device 100 being used to store or provide electrical energy.

[0152] The electrical equipment provided in this application embodiment, by adopting the battery device 100 in the second aspect, reduces the assembly difficulty of the electrical equipment, while improving the assembly efficiency and energy storage capacity, thereby making the electrical equipment more economical.

[0153] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An electrically controlled device, characterized by, It includes a base assembly, and power distribution components, high-voltage circuit boards, a battery management main control board, and a sampling circuit board disposed on the base assembly; The high-voltage switch is electrically connected to the power distribution element; The battery management main control board has a first connector; The sampling circuit board includes a main body, a sampling terminal and a second connector disposed on the main body, the sampling terminal being connected to the high voltage bar, and the second connector being electrically connected to the first connector.

2. The electrically controlled device of claim 1, wherein, The main body is a flexible circuit board.

3. The electrically controlled device according to claim 1 or 2, wherein The first connector is a female socket, and the second connector is a male plug, which is inserted into the female socket.

4. The electrically controlled device according to any one of claims 1 to 3, wherein The sampling terminal is a sheet-like metal component.

5. The electrically controlled device of claim 4, wherein, The thickness of the sampling terminal is 0.2mm-0.3mm.

6. The electrically controlled device according to any one of claims 1 to 5, wherein The electronic control device includes multiple high-voltage transformers, each including a positive high-voltage transformer and a negative high-voltage transformer. The sampling circuit board includes multiple sampling terminals, each of which is electrically connected to the positive high-voltage transformer and the negative high-voltage transformer, respectively.

7. The electrically controlled device according to any one of claims 1 to 6, wherein The sampling circuit board also includes a temperature sensor, which is located on the main body near the sampling terminal and is used to collect the temperature of the sampling terminal.

8. The electrically controlled device according to any one of claims 1 to 7, wherein The battery management main control board is located on one side of the base assembly in the width direction, and the high voltage bar and the sampling circuit board are located at one end of the base assembly in the height direction. The battery management main control board and the sampling circuit board are arranged perpendicularly.

9. The electrically controlled device of claim 8, wherein, The second connector is located at one end of the main body along the width direction of the base assembly, close to the battery management main control board, and the sampling terminal is located on any side of the main body along the length direction of the base assembly.

10. The electrically controlled device of claim 8, wherein, The main body includes a first part and a second part connected to each other. The first part extends along the width direction of the base assembly, and the second connector is located at one end of the first part along the width direction of the base assembly near the battery management main control board. The second part extends along the length direction of the base assembly, and the sampling terminal is located on any side of the second part along the width direction of the base assembly.

11. The electrically controlled device according to any one of claims 1 to 7, wherein The battery management main control board and the sampling circuit board are located at one end of the base assembly in the height direction, with the battery management main control board and the sampling circuit board being arranged opposite each other.

12. The electrically controlled device according to any one of claims 1 to 11, wherein The electrical control device includes a plurality of high-voltage plates, which are arranged at intervals along the length of the base assembly, and the main body is at least partially disposed between the adjacent high-voltage plates.

13. The electrically controlled device according to any one of claims 1 to 12, wherein The main body is provided with a positioning hole, and the base assembly is provided with a positioning post, which is inserted into the positioning hole.

14. The electrically controlled device according to any one of claims 1 to 13, wherein The battery management main control board includes a base plate, and the first connector is soldered onto the base plate.

15. A battery device characterized by comprising: The device includes a battery cell assembly and an electronic control device as described in any one of claims 1-14, wherein the battery cell assembly includes a plurality of battery cells and the battery cells are electrically connected to the electronic control device.

16. An electrical device, characterized by Includes the battery device as described in claim 15, the battery device being used to store or provide electrical energy.

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