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, a power distribution element, and a battery management main control board. The base assembly is provided with a mounting slot. The power distribution element is provided in the mounting slot, the power distribution element comprises a main body and a conductive member protruding from the main body, and the conductive member at least partially extends out of the mounting slot. The battery management main control board is provided on the base assembly, the battery management main control board is provided with an insertion terminal, and the conductive member is inserted into the insertion terminal, so that the power distribution element is electrically connected to the battery management main control board. The technical solution provided in embodiments of the present application can improve the assembly efficiency of an electric control apparatus and a battery apparatus using the electric control apparatus.

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] The battery assembly contains modules such as battery cells, power distribution devices, and battery management systems. The assembly method between the power distribution devices and the battery management system directly affects the assembly efficiency of the battery assembly.

[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 improve the assembly efficiency of the electronic control device and the battery device using the electronic control device.

[0008] An embodiment of the first aspect of this application provides an electronic control device, including: a base assembly having a mounting groove; a power distribution element disposed in the mounting groove, the power distribution element including a body and a conductive member protruding from the body, the conductive member at least partially extending out of the mounting groove; and a battery management main control board disposed on the base assembly, the battery management main control board having plug-in terminals, the conductive member being inserted into the plug-in terminals to electrically connect the power distribution element to the battery management main control board.

[0009] In the electronic control device provided in the above embodiments, both the power distribution element 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 element and the battery management main control board. Furthermore, conductive components are provided on the power distribution element, and plug-in terminals are provided on the battery management main control board. The conductive components are directly inserted into the plug-in terminals, achieving electrical connection between the power distribution element and the battery management main control board. This design eliminates intermediate connecting components such as wiring harnesses, simplifying the assembly operation between the power distribution element and the battery management main control board. This improves the assembly efficiency of the electronic control device and the battery device using the electronic control device. At the same time, since the casing structure of the connecting 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 the electronic control device is applied to the battery device, it can provide more assembly space for the battery cells, thereby increasing the energy storage capacity of the battery device.

[0010] In some embodiments, the power distribution element and the battery management main control board are arranged opposite each other along a first direction, and the conductive element is disposed on the side of the main body facing the battery management main control board, and the conductive element extends along the first direction.

[0011] In the above design, by improving the structure of the conductive component, the assembly difficulty of the conductive component and the plug terminal can be further reduced, and the assembly efficiency between the two can be improved.

[0012] In some embodiments, the electronic control device includes a plurality of power distribution elements located on the same side of the battery management main control board.

[0013] In the above design, multiple power distribution components are centrally located on the same side of the battery management main control board, which facilitates connection with the battery management main control board. Furthermore, this structural design is relatively compact, which helps to further reduce the space occupied by the electronic control device.

[0014] In some embodiments, a plurality of power distribution elements are arranged along a second direction perpendicular to the first direction, and the size of the power distribution elements in the second direction is smaller than the size of the power distribution elements in the first direction.

[0015] In the above design, the arrangement of multiple power distribution components on the base assembly is more reasonable, which can improve space utilization efficiency.

[0016] In some embodiments, the conductive element is located at one end of the main body away from the bottom of the mounting groove, and part of the main body and the conductive element are located outside the mounting groove.

[0017] In the above design, by improving the placement of the conductive components, the assembly difficulty of the power distribution components and the base assembly can be reduced, and a wider installation angle can be provided, improving the convenience of connecting the conductive components and the plug-in terminals.

[0018] In some embodiments, the power distribution element includes a relay.

[0019] In the above design, a relay is a commonly used switching device, mainly used to control the switching of circuits so that the circuits can operate normally.

[0020] In some embodiments, the conductive element includes a first terminal and a second terminal spaced apart, wherein the first terminal and the second terminal are low-voltage terminals.

[0021] In the above design, the first and second terminals are designed as low-voltage terminals to receive control signals from the battery management main control board in order to drive the power distribution components to perform various operations.

[0022] In some embodiments, the first terminal and the second terminal are sheet-like metal parts.

[0023] In the above design, the sheet metal part has a large surface area, which allows it to obtain a large electrical contact area when inserted into the plug terminal, thereby forming a stable and reliable electrical connection.

[0024] In some embodiments, the first terminal and the second terminal are columnar metal components.

[0025] In the above design, the columnar metal part has good mechanical strength and can withstand a certain mechanical stress without deformation, thus maintaining a stable connection with the plug-in terminal.

[0026] In some embodiments, the first terminal and the second terminal protrude from the body by a length of 2mm-3mm.

[0027] In the above design, the length range of the first terminal and the second terminal is reasonable. The first terminal and the second terminal can be inserted into the plug terminal to a certain depth, thereby maintaining a stable mechanical connection with the plug terminal and a reliable electrical connection. At the same time, while meeting the connection requirements, it can also avoid excessive space occupation.

[0028] In some embodiments, the electrical clearance between the first terminal and the second terminal is greater than or equal to 3 mm.

[0029] In the above design, the first terminal and the second terminal maintain a reasonable electrical clearance, which can enhance the electrical safety of conductive components and reduce the risk of electrical faults such as short circuits.

[0030] In some embodiments, the main body includes a yoke with a receiving cavity, an insulating support, and an electrical component. The insulating support is partially installed in the receiving cavity of the yoke, the electrical component is installed in the insulating support, and the conductive component is embedded in the insulating support and electrically connected to the electrical component. The conductive component is located outside the receiving cavity.

[0031] In the above design, the insulating bracket can support and fix the electrical and conductive components, and can electrically isolate the electrical and conductive components from other components, thus having high reliability.

[0032] In some embodiments, the insulating support includes a support portion located outside the receiving cavity, and a conductive element is embedded in the support portion.

[0033] In the above design, the support part provides a stable mechanical support for the conductive component, which can prevent the conductive component from being suspended near the main body. This reduces the risk of deformation of the conductive component due to external forces, thereby improving the stability and reliability of the electrical connection between the conductive component and the plug terminal.

[0034] In some embodiments, the power distribution element further includes a high-voltage terminal disposed on the main body, with the conductive element and the high-voltage terminal respectively disposed at opposite ends of the power distribution element in the height direction.

[0035] In the above design, the high-voltage terminals and conductive components are spaced apart, which increases the electrical clearance between them and improves electrical safety.

[0036] In some embodiments, the battery management main control board includes a substrate and plug terminals soldered onto the substrate.

[0037] In the above design, the connection strength between the plug-in terminal and the substrate is high, and the plug-in terminal is not prone to loosening, falling off or poor contact during use, and can be used reliably for a long time.

[0038] In some embodiments, the plug-in terminal is a spring terminal.

[0039] In the above design, the spring terminal can clamp the conductive component, thereby forming a reliable electrical connection with the conductive component. The spring terminal can also help fix the conductive component, thereby improving the stability of the connection between the two.

[0040] In some embodiments, the groove wall of the mounting slot is provided with a support structure extending toward the power distribution element, and two adjacent support structures, the groove wall of the mounting slot and the surface of the power distribution element enclose a receiving space, the receiving space being filled with colloid.

[0041] In the above design, by setting a support structure in the mounting groove, the power distribution components can be initially positioned to prevent them from shaking or shifting during use. Furthermore, by filling the gaps in the mounting groove with colloid, the power distribution components can be fixed in the mounting groove, thereby improving the connection stability of the power distribution components on the base assembly.

[0042] 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.

[0043] The battery device provided in this application embodiment improves the assembly efficiency and energy storage capacity of the battery device by adopting the electronic control device in the first aspect, thereby making the battery device more economical.

[0044] 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.

[0045] The electrical equipment provided in this application embodiment improves the assembly efficiency and energy storage capacity of the electrical equipment by adopting the battery device in the second aspect, thereby making the electrical equipment more economical.

[0046] 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

[0047] 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.

[0048] Figure 1 is a structural schematic diagram of the vehicle provided in an embodiment of this application;

[0049] Figure 2 is an exploded view of the battery device provided in an embodiment of this application;

[0050] Figure 3 is a schematic diagram of the structure of a battery cell provided in an embodiment of this application;

[0051] Figure 4 is an exploded view of the electronic control device provided in an embodiment of this application. The electronic control device includes a base assembly, power distribution components, and a battery management main control board.

[0052] Figure 5 is a structural schematic diagram of the base assembly provided in an embodiment of this application;

[0053] Figure 6 is a schematic diagram of the structure of the power distribution element provided in an embodiment of this application. The power distribution element is a relay.

[0054] Figure 7 is a schematic diagram of the overall structure of the electronic control device provided in the embodiment of this application;

[0055] Figure 8 is an exploded view of the electronic control device provided in the embodiment of this application. The electronic control device includes a base assembly, power distribution components, a battery management main control board, a bottom shell, a top shell, and a battery cell monitoring circuit board.

[0056] 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, Mounting Slot; 312, Support Structure; 32, Power Distribution Component; 321, Main Body; 321a, Top; 321b, Bottom; 3211, Yoke; 3212, Receiving Cavity; 3213, Insulating Bracket; 3214, Electrical Component; 3215, Mounting Part; 3216, Support Part; 322, Conductive Component; 3221, First Terminal; 3222, Second Terminal; 33, Battery Management Main Control Board; 331, Plug-in Terminal; 332, Base Plate; 40, Bottom Shell; 50, Top Shell; 60, Battery Cell Monitoring Circuit Board. Embodiments of the present invention

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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).

[0063] 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.

[0064] 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.

[0065] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0066] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0067] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0068] 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.

[0069] In related technologies, the various power distribution components, electrical connectors, sampling components, and other devices in the power distribution unit are distributed or integrated into a single housing. The functional module circuits in the battery management system are integrated onto one or more circuit boards and installed in another housing. Furthermore, the power distribution unit and battery management system are installed within the battery device and communicate with each other via wiring harnesses and other connectors. This assembly structure occupies a significant amount of space in the battery device, affecting its energy storage capacity. Moreover, the numerous and complex wiring harnesses result in low assembly efficiency, thus impacting the overall economic benefits of the battery device.

[0070] Based on the above reasons, this application provides an electronic control device, including a base assembly, a power distribution element, and a battery management main control board. Both the power distribution element and the battery management main control board are mounted on the base assembly. The power distribution element has conductive components, and the battery management main control board has plug-in terminals. The conductive components are inserted into the plug-in terminals to achieve electrical connection between the power distribution element and the battery management main control board. This eliminates the need for a protective casing for the battery management system, reducing the space occupied by the electronic control device. Therefore, when applied to a battery device, this electronic control device can provide more assembly space for individual battery cells, thereby increasing the energy storage capacity of the battery device. Furthermore, the conductive components of the power distribution element and the plug-in terminals of the battery management main control board are designed with a close-range direct-insertion structure, eliminating the need for intermediate connecting components such as wiring harnesses, simplifying the assembly operation between the power distribution element and the battery management main control board, and thus improving the assembly efficiency of the electronic control device and the battery device using it.

[0071] For ease of explanation, the following embodiments provide an electrical device using a vehicle as an example.

[0072] Please refer to Figure 1, which is a structural schematic diagram of a vehicle 100 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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 and a battery management main control board 33. Power from the battery cell assembly 20 is transmitted to the power distribution element 32 and then to the electrical device. The voltage, current, and temperature parameters of the battery cell assembly 20 are collected and monitored by the battery management main control board 33. The battery management main control board 33 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.

[0080] The technical solutions provided by the embodiments of this application will be described below with reference to Figures 4 to 8. In the embodiments provided by this application, the first direction X is the width direction of the base assembly 31, the second direction Y is the length direction of the base assembly 31, and the third direction Z is the height direction of the base assembly 31. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0081] Please refer to Figures 4 to 6. Figure 4 is an exploded view of an electronic control device 30 provided in some embodiments of this application. Figure 5 is a structural schematic diagram of a base assembly 31 provided in some embodiments of this application. Figure 6 is a structural schematic diagram of a power distribution element 32 provided in some embodiments of this application. 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, a power distribution element 32, and a battery management main control board 33. The base assembly 31 has a mounting groove 311. The power distribution element 32 is disposed within the mounting groove 311 and includes a main body 321 and a conductive member 322 protruding from the main body 321. The conductive member 322 at least partially extends out of the mounting groove 311. The battery management main control board 33 is disposed on the base assembly 31 and has a plug-in terminal 331. The conductive member 322 is inserted into the plug-in terminal 331 to electrically connect the power distribution element 32 to the battery management main control board 33.

[0082] The base assembly 31 is the main body 321 of the electrical control device 30, used to support and fix various components, i.e., it is a load-bearing structure. One or more mounting slots 311 may be provided on the base assembly 31, which are used to accommodate the power distribution components 32. The structure of the mounting slots 311 is adapted to the power distribution components 32. The base assembly 31 may be made of insulating material to effectively isolate the current between electrical components and prevent short circuits or leakage problems.

[0083] 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. The main body 321 is the core functional structure of the power distribution element 32, including various structures and electrical components other than the conductive element 322 used to realize the specific power distribution function of the power distribution element 32. For example, the main body 321 of a relay can include a housing, coil, etc. The conductive element 322 is an electrical connector and can be made of a metal material with good conductivity, such as copper, aluminum, etc. The conductive element 322 is directly connected to the plug-in terminal 331, which enables the electrical connection between the power distribution element 32 and the battery management main control board 33, thereby establishing a reliable current path between the power distribution element 32 and the battery management main control board 33, and realizing power and signal transmission.

[0084] The battery management main control board 33 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 33 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 33 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 33 can be provided with one or more plug-in terminals 331, which are used to plug into and cooperate with the conductive parts 322 of the power distribution element 32. The structure of the plug-in terminals 331 is adapted to the conductive parts 322. It should be noted that the battery management system should have a corresponding protective casing to protect the internal components such as the battery management main control board 33. After the battery management main control board 33 is placed on the base assembly 31, the battery management system and the power distribution components 32 are positioned accordingly with the base assembly 31 as the support carrier, thus eliminating the need for a protective casing for the battery management system.

[0085] In the electronic control device 30 provided in this application embodiment, both the power distribution element 32 and the battery management main control board 33 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 element 32 and the battery management main control board 33. Furthermore, the power distribution element 32 is provided with a conductive element 322, and the battery management main control board 33 is provided with a plug-in terminal 331. The conductive element 322 is directly inserted into the plug-in terminal 331, realizing the electrical connection between the power distribution element 32 and the battery management main control board 33. This design eliminates the need for intermediate wiring harnesses, etc. The connector simplifies the assembly operation between the power distribution element 32 and the battery management main control board 33, thereby improving the assembly efficiency of the electronic control device 30 and the battery device 100 using the electronic control device 30. At the same time, since the connecting wire 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.

[0086] Referring to Figure 4, in some embodiments, the power distribution element 32 and the battery management main control board 33 are arranged opposite to each other along the first direction X, and the conductive element 322 is disposed on the side of the main body 321 facing the battery management main control board 33, and the conductive element 322 extends along the first direction X.

[0087] Along the first direction X, the battery management main control board 33 is located on one side of the power distribution element 32, and the plug-in terminal 331 can be provided on the surface of the battery management main control board 33 facing the power distribution element 32 and correspond to the conductive element 322 on the power distribution element 32.

[0088] The conductive element 322 extends along the first direction X, allowing it to protrude from the mounting groove 311. The protruding direction of the conductive element 322 is perpendicular to the plane of the battery management main control board 33. The plane of the battery management main control board 33 refers to the plane containing the surface with the largest area of ​​the battery management main control board 33.

[0089] For example, the base assembly 31 includes a peripheral side surface, the battery management main control board 33 is disposed on the peripheral side surface of the base assembly 31 and extends along the length direction of the base assembly 31, and the conductive element 322 extends along the width direction of the base assembly 31 and extends out of the mounting groove 311. The extension direction of the conductive element 322 is perpendicular to the plane where the battery management main control board 33 is located. In the XYZ coordinate system, the peripheral side surface of the base assembly 31 is perpendicular to the XOY plane.

[0090] In the above design, on the one hand, the power distribution component 32 is directly opposite the battery management main control board 33, which makes the structure of the entire electronic control device 30 more compact and minimizes the distance between the conductive component 322 and the surface of the battery management main control board 33. On the other hand, the conductive component 322 is designed as a straight structure, which can be directly aligned with the battery management main control board 33 and directly inserted into the plug-in terminal 331. This close-range direct plug-in design has a lower assembly difficulty, and the conductive component 322 is less likely to be deformed or damaged during the assembly process, which is conducive to further improving assembly efficiency and improving the reliability of the electrical connection between the power distribution component 32 and the battery management main control board 33.

[0091] In some other embodiments, the extension direction of the conductive element 322 may be parallel to the plane of the battery management main control board 33, and the conductive element 322 may be designed as a bent shape such as L-shape or U-shape to meet the corresponding connection requirements.

[0092] Referring to Figure 4, in some embodiments, the electronic control device 30 includes a plurality of power distribution elements 32, which are located on the same side of the battery management main control board 33.

[0093] Multiple power distribution components 32 need to be spaced apart to ensure electrical safety and reduce mutual interference between the components. The multiple power distribution components 32 can be installed in the same mounting slot 311 or in different mounting slots 311. The conductive parts 322 on the multiple power distribution components 32 can extend towards the side where the battery management main control board 33 is located.

[0094] For example, in some specific embodiments, the base assembly 31 includes a peripheral side surface, the battery management main control board 33 is disposed on the peripheral side surface of the base assembly 31 and extends along the length direction of the base assembly 31, a plurality of power distribution elements 32 are arranged at intervals along the length direction of the base assembly 31 and are disposed in different mounting slots 311, the conductive elements 322 on the plurality of power distribution elements 32 are all disposed on the side of their respective bodies 321 facing the battery management main control board 33 and extend out of the mounting slots 311 along the width direction of the base assembly 31, the extension direction of the conductive elements 322 on the plurality of power distribution elements 32 is consistent and is perpendicular to the plane where the battery management main control board 33 is located.

[0095] With the above design, the multiple power distribution components 32 are arranged in a more concentrated manner, which can reduce the assembly difficulty of the power distribution components 32 and the battery management main control board 33, thereby further improving the assembly efficiency of the electronic control device 30. At the same time, this design can make full use of space, making the arrangement of various components in the electronic control device 30 more reasonable, thereby reducing the space occupied by the electronic control device 30.

[0096] In other embodiments, the base assembly 31 has various structures, and multiple power distribution elements 32 can be flexibly arranged at different positions of the base assembly 31 and distributed on different sides of the battery management main control board 33.

[0097] In some embodiments, a plurality of power distribution elements 32 are arranged along a second direction Y perpendicular to the first direction X, and the size of the power distribution element 32 in the second direction Y is smaller than the size of the power distribution element 32 in the first direction X.

[0098] For example, the power distribution element 32 can be a cubic structure or a similar cubic structure, and the extension direction of the shorter side of the power distribution element 32 is perpendicular to the first direction X and parallel to the second direction Y.

[0099] With the above design, the arrangement of the power distribution components 32 is reasonable. Under the premise of limited space in the second direction Y, more power distribution components 32 can be set on the base assembly 31.

[0100] In some other embodiments, the multiple power distribution elements 32 may be arranged at intervals along their own length direction, or the power distribution elements 32 may be other irregular structures. The arrangement of the multiple power distribution elements 32 may be adjusted according to the structure of the base assembly 31 and the setting of the battery management main control board 33.

[0101] Please refer to Figures 4 and 6. In some embodiments, the conductive element 322 is located at one end of the main body 321 away from the bottom of the mounting groove 311, and part of the main body 321 and the conductive element 322 are located outside the mounting groove 311.

[0102] It is understandable that part of the main body 321 is exposed outside the mounting groove 311 to allow the conductive component 322 to extend out of the mounting groove 311.

[0103] For example, the power distribution element 32 can be a cubic structure or a similar cubic structure. The main body 321 of the power distribution element 32 has two opposing end walls in its height direction. These two end walls are defined as the top end 321a and the bottom end 321b, respectively. A side wall connects the two end walls. The conductive element 322 can be set at one of the side walls near the top end 321a. When the power distribution element 32 is set in the mounting groove 311, the bottom end 321b is located at the bottom of the mounting groove 311, and the top end 321a, the side wall near the top end 321a, and the conductive element 322 are exposed in the mounting groove 311.

[0104] The above design reduces the assembly difficulty of the power distribution component 32 and the base assembly 31. The conductive component 322 is exposed from the groove of the mounting groove 311, which also provides a wider installation angle, thus facilitating connection with the battery management main control board 33.

[0105] In some other embodiments, the position of the conductive element 322 can be adjusted according to actual needs. For example, the conductive element 322 can be located in the middle of one side wall of the main body 321, and the groove wall of the mounting groove 311 can be provided with a corresponding clearance hole for the conductive element 322 to extend out.

[0106] In some embodiments, the power distribution element 32 includes a relay.

[0107] A relay is a switching device, mainly used to control the switching of circuits so that the circuits can operate normally.

[0108] In some embodiments, the relay may be a main relay. The main relay includes a main positive relay for being disposed on the positive side of the high-voltage system and a main negative relay for being disposed on the negative side of the high-voltage system. In the high-voltage system, automatic control of the circuit can be realized by controlling the switching state of the main relay.

[0109] In some embodiments, the relay can also be a pre-charge relay. In the battery device 100, the pre-charge relay is a relay that controls the opening and closing of the pre-charge circuit, that is, it connects the pre-charge circuit for self-testing before the main relay operates. The pre-charge relay can play a pre-charging role in the circuit. When starting electrical equipment such as vehicles, pre-charging allows the capacitor to be fully charged, and when the system switch is started, it slowly releases the charge from the capacitor into the switching circuit, thereby reducing the load on the switch and voltage drop. By controlling the charging and discharging process of the capacitor, the pre-charge relay achieves smoother power transfer and longer battery life.

[0110] Referring to Figures 4 and 6, in some embodiments, the conductive element 322 includes a first terminal 3221 and a second terminal 3222 spaced apart, wherein the first terminal 3221 and the second terminal 3222 are low-voltage terminals.

[0111] For example, the relay includes a body 321, a first terminal 3221 and a second terminal 3222. One end of the first terminal 3221 and the second terminal 3222 are fixedly disposed on the body 321 by means of embedding, welding or other methods, and electrically connected to the conductive element 322 in the body 321. The other end of the first terminal 3221 and the second terminal 3222 are inserted into the plug-in terminal 331 on the battery management main control board 33.

[0112] The first terminal 3221 and the second terminal 3222 are designed as low-voltage terminals. The low-voltage terminals are used to receive control signals from the battery management main control board 33 to drive the power distribution component 32 to perform various operations.

[0113] It is understandable that the number of plug-in terminals 331 on the battery management main control board 33 matches the number of first terminals 3221 and second terminals 3222, and the first terminals 3221 and second terminals 3222 of multiple power distribution components 32 can all be plugged into the corresponding plug-in terminals 331.

[0114] Referring to Figure 6, in some embodiments, the first terminal 3221 and the second terminal 3222 are sheet-like metal parts.

[0115] The sheet-like structure has a certain thickness and width, and has a connecting plane. Its shape can be various, such as rectangular, trapezoidal, etc. Because the sheet-like metal part has a large surface area, it can obtain a large electrical contact area when inserted into the plug terminal 331, thereby forming a stable and reliable electrical connection.

[0116] In other embodiments, the first terminal 3221 and the second terminal 3222 are columnar metal parts.

[0117] The columnar structure can be cylindrical or prismatic. The columnar metal part has good mechanical strength and can withstand a certain mechanical stress without deformation, thus maintaining a stable connection with the plug terminal 331.

[0118] It is understood that in some other embodiments, the first terminal 3221 and the second terminal 3222 may also be designed as needle-like structures to reduce the space occupied by the first terminal 3221 and the second terminal 3222.

[0119] In some embodiments, the first terminal 3221 and the second terminal 3222 protrude from the body 321 by a length of 2mm-3mm.

[0120] For example, the lengths by which the first terminal 3221 and the second terminal 3222 protrude from the main body 321 can be 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, or 3mm.

[0121] In the relay, the first terminal 3221 and the second terminal 3222 can be vertically disposed on the end wall or side wall of the main body 321. The length of the first terminal 3221 and the second terminal 3222 protruding from the main body 321 is also the length of the first terminal 3221 and the second terminal 3222 protruding from the surface of the disposed wall.

[0122] With the above design, the first terminal 3221 and the second terminal 3222 can extend into the plug terminal 331, thereby forming a stable and reliable mechanical connection with the plug terminal 331 and achieving a good electrical connection. At the same time, while meeting the connection requirements, it can also avoid excessive space occupation, so that the various components in the electrical control device 30 can be arranged more compactly.

[0123] In some embodiments, the electrical clearance between the first terminal 3221 and the second terminal 3222 is greater than or equal to 3 mm.

[0124] For example, the electrical clearance between the first terminal 3221 and the second terminal 3222 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, etc., or when the first terminal 3221 and the second terminal 3222 are connected in a high-voltage circuit, the electrical clearance between the first terminal 3221 and the second terminal 3222 can be 9.5mm, 10mm, 11mm, or even larger.

[0125] By adopting the above design, the risk of short circuit between the first terminal 3221 and the second terminal 3222 can be reduced, thereby enhancing the electrical safety of the conductive component 322.

[0126] Referring to Figure 6, in some embodiments, the power distribution element 32 includes a relay. The body 321 of the relay includes a yoke 3211 with a receiving cavity 3212, an insulating support 3213, and an electrical component 3214. The insulating support 3213 is partially installed in the receiving cavity 3212 of the yoke 3211. The electrical component 3214 is installed in the insulating support 3213. The conductive component 322 is embedded in the insulating support 3213 and electrically connected to the electrical component 3214. The conductive component 322 is located outside the receiving cavity 3212.

[0127] The yoke 3211 is the support structure 312 of the relay, providing an assembly base for other components and offering necessary protection. The yoke 3211 is made of a magnetic material with high permeability, such as soft iron. The yoke 3211 also constitutes part of the internal magnetic circuit of the relay. Generally, the relay also includes a coil. After the coil generates a magnetic field when energized, the yoke 3211 guides and concentrates the magnetic field generated by the coil.

[0128] In some specific embodiments, the relay also includes an iron core and an armature, with a yoke 3211 connecting the iron core and the armature, so that the magnetic field can be smoothly transmitted from the place where the coil is generated to the armature, thereby achieving the attraction effect on the armature.

[0129] The yoke 3211 has a receiving cavity 3212, that is, the yoke 3211 has an internal space. Part of the insulating support 3213 is installed in the receiving cavity 3212 of the yoke 3211. The yoke 3211 and the insulating support 3213 are positioned and connected to each other. The first terminal 3221 and the second terminal 3222 are located in the external space of the receiving cavity 3212 of the yoke 3211, so that the first terminal 3221 and the second terminal 3222 can protrude relative to the yoke 3211 and connect to the plug-in terminal 331 on the battery management main control board 33. The first terminal 3221, the second terminal 3222 and the yoke 3211 will not interfere with each other.

[0130] The insulating bracket 3213 is used to mount the electrical component 3214 and the conductive component 322 to ensure the stability of their positions. Simultaneously, the insulating bracket 3213 also provides electrical insulation, electrically isolating the electrical component 3214 and the conductive component 322 from other components to prevent current conduction between conductors at different potentials within the relay, thus reducing the risk of electrical faults such as short circuits and leakage. The insulating bracket 3213 can be made of inorganic insulating materials, organic insulating materials, or composite insulating materials. For example, the material of the insulating bracket 3213 can be ceramic, glass, mica, plastic, rubber, or epoxy fiberglass cloth composite materials, etc.

[0131] In some specific embodiments, the electrical component 3214 includes a coil, and the insulating support 3213 includes a winding portion (not shown) and a mounting portion 3215 connected to one end of the winding portion. Both the winding portion and the mounting portion 3215 are disposed within the receiving cavity 3212. The coil is wound around the winding portion, and the conductive component 322 is embedded in the mounting portion 3215. The mounting portion 3215 is connected to one end of the winding portion. It can be integrally formed with the winding portion, or the mounting portion 3215 can be fixed to the winding portion by means of snap-fit, insertion, fastening, or adhesion. For example, the winding portion and the mounting portion 3215 can be integrally formed by injection molding.

[0132] Electrical component 3214 is a component inside the relay used to achieve a specific function. For example, electrical component 3214 can be an electrical component such as a coil, capacitor, or resistor.

[0133] It is understood that in other embodiments, in addition to the main relay and the pre-charge relay, the power distribution element 32 may also be other elements in the power distribution device that can be connected using the connection method provided in the embodiments of this application.

[0134] In some embodiments, the conductive element 322 and the insulating support 3213 are integrally formed through a composite molding process. Specifically, during manufacturing, the conductive element 322 is placed at a specific position in an injection mold, and molten material for the insulating support 3213 is injected into the mold for injection molding. During the injection molding process, the molten insulating material fills the mold cavity under certain pressure and temperature, surrounds the conductive element 322, and forms the insulating support 3213 after cooling and solidification. In this way, part of the structure of the conductive element 322 is tightly wrapped within the insulating support 3213, and the two become a single integrated structure.

[0135] By connecting the conductive component 322 to the insulating bracket 3213 through injection molding, the connection between the conductive component 322 and the insulating bracket 3213 can be made tighter and more secure, so that the conductive component 322 is not easy to fall off or loosen, and the reliability is higher.

[0136] Referring to Figure 6, in some embodiments, the insulating support 3213 includes a support portion 3216 located outside the receiving cavity 3212, and the conductive element 322 is embedded in the support portion 3216.

[0137] The insulating support 3213 may include one or more support portions 3216. For example, in a relay, the conductive element 322 includes a first terminal 3221 and a second terminal 3222. The insulating support 3213 may include one support portion 3216, with the first terminal 3221 and the second terminal 3222 spaced apart on the support portion 3216. Alternatively, the insulating support 3213 may also include two support portions 3216 spaced apart, with the first terminal 3221 and the second terminal 3222 respectively located on different support portions 3216.

[0138] The support portion 3216 can have various shapes, such as a cylindrical shape, a cuboid shape, etc. In some specific embodiments, the insulating bracket 3213 includes a winding portion and a mounting portion 3215. The support portion 3216 can be connected to the mounting portion 3215 by means of bonding, snap-fitting, etc., or the support portion 3216 can be directly integrally formed with the mounting portion 3215.

[0139] The conductive component 322 protrudes from the main body 321 of the power distribution component 32 and needs to extend out of the mounting groove 311 to be inserted into the plug terminal 331 of the battery management main control board 33. During assembly and use, the conductive component 322 is at risk of deformation, especially at the connection point between the conductive component 322 and the main body 321, where stress concentration and deformation are likely to occur. If the conductive component 322 deforms, it will affect the connection effect with the plug terminal 331, thereby affecting the reliability and stability of the electrical connection. In the above design, the support part 3216 can provide a stable mechanical support for the conductive component 322, preventing the conductive component 322 from being suspended near the main body 321, thereby reducing the risk of deformation, loosening, or detachment of the conductive component 322.

[0140] In some embodiments, the yoke 3211 needs to be provided with a through hole at the position corresponding to the support portion 3216 to ensure that the support portion 3216 can be installed correctly. At the same time, the hole wall of the through hole supports the support portion 3216 and can also help fix the support portion 3216, thereby improving the stability of the insulating bracket 3213 and the conductive component 322.

[0141] In some embodiments, the power distribution element 32 further includes a high-voltage terminal (not shown) disposed on the main body 321, and the conductive element 322 and the high-voltage terminal are respectively disposed at opposite ends of the power distribution element 32 in the height direction.

[0142] High-voltage terminals are used to connect to high-voltage circuits. For example, in a relay, high-voltage terminals can be connected to a busbar on the battery cell assembly 20.

[0143] For example, the power distribution element 32 can be a cubic structure or a similar cubic structure. The power distribution element 32 has two opposing end walls in its height direction, which are defined as the top end and the bottom end, respectively. A side wall connects the two end walls. The conductive element 322 and the high voltage terminal can be respectively provided on one of the top end wall or the bottom end wall, or they can be provided on the same or different side walls near the top or bottom end.

[0144] In one specific embodiment, the battery management main control board 33 is disposed on the peripheral side of the base assembly 31. The bottom of the base assembly 31 is also provided with a plate structure for connecting the battery cell 21. To improve the connection convenience, the conductive element 322 can be disposed at the top end 321a of the power distribution element 32 or at a position near the top end 321a on one side wall, so that the conductive element 322 can extend out of the mounting groove 311 and connect to the battery management main control board 33. At the same time, the high voltage terminal can be disposed at the bottom end 321b of the power distribution element 32, so that the high voltage terminal can be close to the bottom of the mounting groove 311 and connect to the plate.

[0145] In the above design, the conductive component 322 and the high-voltage terminal are distributed separately, which facilitates electrical connection with other components in the electrical control device 30. At the same time, arranging the conductive component 322 and the high-voltage terminal at both ends of the main body 321 can increase the electrical clearance between them, thereby improving electrical safety.

[0146] Referring to Figure 4, in some embodiments, the battery management main control board 33 includes a substrate 332 and plug terminals 331 soldered onto the substrate 332.

[0147] The substrate 332 is the main part of the circuit board. The substrate 332 can provide a supporting foundation for the plug-in terminals 331 and other electronic components, and provide the necessary electrical connection foundation. Various circuit traces can be set on the substrate 332, and vias, pads and other conductive structures can also be designed.

[0148] The number and location of the plug-in terminals 331 are determined according to design requirements. In some specific embodiments, multiple plug-in terminals 331 are provided on the substrate 332, and the multiple plug-in terminals 331 are arranged sequentially along one edge of one side of the substrate 332 along its length direction. Multiple power distribution components 32 are concentrated on one side of the battery management main control board 33 along its thickness direction, and conductive components 322 extend toward one side of the battery management main control board 33.

[0149] In the above design, the connection strength between the plug terminal 331 and the substrate 332 is high. During use, the plug terminal 331 is not prone to loosening, falling off or poor contact, and can be used for a long time.

[0150] In some other embodiments, the substrate 332 may be a multilayer board, and the plug-in terminal 331 may be directly embedded in the multilayer board. Alternatively, the plug-in terminal 331 may be directly mounted on the substrate 332 by surface mount technology.

[0151] In some embodiments, the plug-in terminal 331 is a spring terminal.

[0152] The spring terminal may include a spring sheet or other elastic contact structure. When the conductive element 322 is inserted into the spring terminal, the elastic structure in the spring terminal can clamp the conductive element 322, so that the conductive contact in the spring terminal can make close contact with the conductive element 322.

[0153] In the above design, the spring terminal can clamp the conductive element 322, thereby forming a reliable electrical connection with the conductive element 322. The spring terminal can also help fix the conductive element 322, thereby improving the stability of the connection between the two.

[0154] In some other embodiments, the plug-in terminal 331 can also be designed as a conventional fixed socket. After the conductive element 322 is inserted into the socket, the base assembly 31 positions the power distribution element 32 and the battery management main control board 33, thereby fixing the conductive element 322 and the plug-in terminal 331.

[0155] Referring to Figures 4 and 5, in some embodiments, a support structure 312 is provided on the wall of the mounting groove 311, and the support structure 312 extends toward the direction of the power distribution element 32.

[0156] The structural forms of the support structure 312 include, but are not limited to, protruding ribs, protruding columns, and protrusions formed on the groove wall of the mounting groove 311.

[0157] For example, the support structure 312 can be multiple ribs formed on the wall of the mounting groove 311. The end of each rib away from the groove wall of the mounting groove 311 is used to limit the outer contour of the power distribution component 32, thereby achieving the positioning of the power distribution component 32 within the mounting groove 311. It can be understood that if there is an interference fit between each rib and the power distribution component 32, the position of the power distribution component 32 can also be fixed. An interference fit means that each rib is tightly fitted to the surface of the power distribution component 32, with no space between them.

[0158] Furthermore, the walls of the two adjacent support structures 312, the mounting groove 311, and the surface of the power distribution element 32 enclose a receiving space, which is filled with colloid.

[0159] When uncured, the colloid is a fluid that can fill a accommodative space. After curing, it forms a non-flowing, sealed structure, eliminating gaps between the power distribution component 32 and the wall of the mounting groove 311. Simultaneously, the colloid possesses a certain degree of viscosity, enabling it to connect the power distribution component 32 to the wall of the mounting groove 311, firmly fixing the power distribution component 32 within the mounting groove 311. In addition to its good fluidity, the colloid also exhibits good thermal conductivity and insulation properties.

[0160] In one specific embodiment, the power distribution element 32 includes a relay, which includes a yoke 3211. At least a portion of the yoke 3211 is located in a mounting groove 311. The mounting groove 311 has a rib on its groove wall opposite the yoke 3211, and at least a portion of the rib is in contact with the surface of the yoke 3211. The contact between the rib and the yoke 3211 creates a certain gap between the yoke 3211 and the groove wall of the mounting groove 311. This gap can be used for heat dissipation and for potting adhesive.

[0161] In the above design, by setting a support structure 312 in the mounting groove 311 and filling the gaps in the mounting groove 311 with colloid, the power distribution component 32 can be firmly fixed in the mounting groove 311, thereby preventing the power distribution component 32 from shaking or shifting during use and affecting the connection with the battery management main control board 33.

[0162] In some other embodiments, the power distribution element 32 can also be fixed in the mounting groove 311 by means of a snap-fit ​​structure or fasteners such as bolts, or the power distribution element 32 can also be designed to directly interfere with the groove wall of the mounting groove 311.

[0163] Please refer to Figures 7 and 8. Figure 7 is an overall view of the electronic control device 30 provided in some embodiments of this application, and Figure 8 is an exploded view of the electronic control device 30 provided in some embodiments 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 can together form a receiving space to accommodate the base assembly 31, the power distribution element 32, and the battery management main control board 33, etc. The bottom shell 40 and the top shell 50 can provide physical protection for the components in the electronic control device 30. The connection 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 between the top shell 50 and the base assembly 31 can be, but is not limited to, threaded connection, snap-fit, plug-in, etc.

[0164] In some embodiments, the battery management main control board 33 is the main control board of the battery management system, and the electronic control device 30 also includes a battery cell monitoring circuit board 60. The battery cell monitoring circuit board 60 is configured with various circuits of the slave control unit and is electrically connected to the battery management main control board 33.

[0165] Understandably, the battery cell monitoring circuit board 60 is used to monitor the operating status of the battery cell 21, including parameters such as voltage and temperature. The battery cell monitoring circuit board 60 can be connected to the top shell 50 via fasteners such as screws and pins. The battery cell monitoring circuit board 60 and the battery management main control board 33 can be electrically connected via a wiring harness, or connected via direct connection methods such as terminal plug-in or bolt fastening.

[0166] The battery cell monitoring circuit board 60 can be placed on the periphery of the electronic control device 30, or it can be installed on the top surface of the electronic control device 30 along the height direction. Optionally, the battery cell monitoring circuit board 60 and the battery management main control board 33 are located on two adjacent sides of the electronic control device 30, or on two opposite sides of the electronic control device 30.

[0167] In one specific embodiment of this application, referring to Figure 1, the electronic control device 30 includes a base assembly 31, multiple relays, and a battery management main control board 33. The base assembly 31 has multiple independent mounting slots 311 arranged along the length of the base assembly 31, and multiple relays are respectively disposed within the mounting slots 311. Each relay includes a yoke 3211, an insulating bracket 3213, an electrical component 3214, and a conductive component 322. The insulating bracket 3213 is installed within the receiving cavity 3212 of the yoke 3211. The electrical component 3214 is installed on the insulating bracket 3213. The conductive component 322 is embedded in the insulating bracket 3213 and electrically connected to the electrical component 3214. The conductive component 322 extends along the width of the base assembly 31 and protrudes from the mounting slot 311. The battery management main control board 33 is disposed on the peripheral side of the base assembly 31 and extends along the length of the base assembly 31. The battery management main control board 33 includes a base plate 332 and a plurality of plug terminals 331 disposed on the base plate 332. The plurality of plug terminals 331 are arranged along one edge of the length of the base plate 332 and are respectively opposite to a plurality of relays. The conductive parts 322 on each relay are inserted into the corresponding plug terminals 331 to realize the electrical connection between the relay and the battery management main control board 33.

[0168] The mounting groove 311 has a support structure 312 on its groove wall. The support structure 312 may be, but is not limited to, a rib, a column, or a block formed on the groove wall of the mounting groove 311. The support structure 312 extends toward the relay and is used to limit the outer contour of the relay. Two adjacent support structures 312, the groove wall of the mounting groove 311, and the surface of the relay enclose a receiving space. The receiving space is filled with a colloid with a certain degree of adhesion, which can firmly fix the relay in the mounting groove 311.

[0169] The conductive element 322 includes a first terminal 3221 and a second terminal 3222 embedded in the insulating support 3213. The first terminal 3221 and the second terminal 3222 are sheet-like metal parts, specifically, they can be copper sheets, nickel sheets, etc. The length of the first terminal 3221 and the second terminal 3222 protruding from the main body 321 is 2mm-3mm. For example, the length of the first terminal 3221 and the second terminal 3222 protruding from the main body 321 can be 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, or 3mm. The electrical clearance between the first terminal 3221 and the second terminal 3222 is greater than or equal to 3mm. For example, the electrical clearance between the first terminal 3221 and the second terminal 3222 can be 4mm, 5mm, 6mm, 7mm, 8mm, or 9mm.

[0170] The plug terminal 331 is soldered onto the substrate 332. The plug terminal 331 can be a spring terminal.

[0171] The electronic control device 30 also 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 can together form a receiving space to accommodate the base assembly 31, the power distribution element 32, and the battery management main control board 33, etc.

[0172] In the above embodiment, the electronic control device 30, the relay and the battery management main control board 33 are both mounted on the base assembly 31. The relay and the battery management main control board 33 can be electrically connected through close-range direct insertion of the conductive parts 322 and the plug-in terminals 331. The assembly operation between the two is simple, resulting in high assembly efficiency. At the same time, the components in the electronic control device 30 are compactly arranged, and the protective shell and other structures of the battery management system in related technologies are eliminated. As a result, the overall size of the electronic control device 30 is small. 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.

[0173] 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.

[0174] The battery device 100 provided in this application embodiment improves the assembly efficiency and energy storage capacity of the battery device 100 by adopting the electronic control device 30 in the first aspect, thereby making the battery device 100 more economical.

[0175] 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.

[0176] The electrical equipment provided in this application embodiment improves the assembly efficiency and energy storage capacity of the electrical equipment by adopting the battery device 100 in the second aspect, thereby making the electrical equipment more economical.

[0177] 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, include: A base assembly, wherein the base assembly is provided with a mounting groove; A power distribution element is disposed in the mounting groove. The power distribution element includes a main body and a conductive element protruding from the main body. The conductive element at least partially extends out of the mounting groove. A battery management main control board is disposed on the base assembly. The battery management main control board has plug-in terminals. The conductive element is inserted into the plug-in terminals to electrically connect the power distribution element to the battery management main control board.

2. The electrically controlled device of claim 1, wherein, The power distribution component and the battery management main control board are arranged opposite each other along a first direction, and the conductive element is located on the side of the main body facing the battery management main control board, and the conductive element extends along the first direction.

3. The electrically controlled device of claim 2, wherein, The electronic control device includes multiple power distribution elements, which are located on the same side of the battery management main control board.

4. The electrically controlled device of claim 3, wherein, The plurality of power distribution elements are arranged along a second direction perpendicular to the first direction, wherein the size of the power distribution element in the second direction is smaller than the size of the power distribution element in the first direction.

5. The electrically controlled device according to any one of claims 1 to 4, wherein The conductive element is located at one end of the main body away from the bottom of the mounting groove, and part of the main body and the conductive element are located outside the mounting groove.

6. The electrically controlled device according to any one of claims 1 to 5, wherein The power distribution components include relays.

7. The electrically controlled device according to any one of claims 1 to 6, wherein The conductive component includes a first terminal and a second terminal spaced apart, wherein the first terminal and the second terminal are low-voltage terminals.

8. The electrically controlled device of claim 7, wherein, The first terminal and the second terminal are sheet-shaped metal parts or columnar metal parts.

9. The electrically controlled device according to claim 7 or 8, wherein The first terminal and the second terminal protrude from the main body by a length of 2mm-3mm.

10. The electrically controlled device according to any one of claims 7 to 9, wherein The electrical clearance between the first terminal and the second terminal is greater than or equal to 3 mm.

11. The electrically controlled device according to any one of claims 6 to 10, wherein The main body includes a yoke with a receiving cavity, an insulating support, and an electrical component. The insulating support is partially installed in the receiving cavity of the yoke, the electrical component is installed in the insulating support, and the conductive component is embedded in the insulating support and electrically connected to the electrical component. The conductive component is located outside the receiving cavity.

12. The electrically controlled device according to claim 11, wherein The insulating support includes a support portion located outside the receiving cavity, and the conductive element is embedded in the support portion.

13. The electrically controlled device according to any one of claims 6 to 12, wherein The power distribution element also includes a high-voltage terminal disposed on the main body, and the conductive element and the high-voltage terminal are respectively disposed at opposite ends of the power distribution element in the height direction.

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 plug-in terminals soldered onto the base plate.

15. The electrically controlled device according to any one of claims 1 to 14, wherein The plug-in terminal is a spring terminal.

16. The electrically controlled device according to any one of claims 1 to 15, wherein The mounting groove has a support structure on its wall, the support structure extends toward the power distribution element, and two adjacent support structures, the wall of the mounting groove and the surface of the power distribution element enclose a receiving space, the receiving space being filled with colloid.

17. 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 1-16, wherein the battery cell assembly includes a plurality of battery cells and the battery cells are electrically connected to the electronic control device.

18. An electrical device, characterized by Includes the battery device as described in claim 17, the battery device being used to store or provide electrical energy.

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