Electronic control device, battery device, related device, energy storage system and charging network

Abstract

The present application belongs to the technical field of battery production. Provided are an electronic control device, a battery device, a related device, an energy storage system and a charging network. The electronic control device comprises a battery management circuit board and an electrical connection assembly, wherein the battery management circuit board is provided with a first connecting terminal, which first connecting terminal is electrically connected to an internal circuit of the battery management circuit board; and the electrical connection assembly comprises a bearing member and a conductive component, the conductive component being connected to the bearing member, and the conductive component comprising a conductive part, a second connecting terminal and a third connecting terminal. The second connecting terminal is connected to the third connecting terminal by means of the conductive part, the second connecting terminal is connected to the first connecting terminal, and the third connecting terminal is connected to a busbar or a relay inside the electric control device. The present application is aimed at replacing the connection mode of a wire harness, so as to simplify the structure and improving the integration level.

Description

Electronic control devices, battery devices, related devices, energy storage systems and charging networks

[0001] This application claims priority to Chinese patent application No. 2023229332048, filed with the State Intellectual Property Office on October 31, 2023, entitled “Conductor structure, shell structure, electric control equipment, battery and electric device”, the entire contents of which are incorporated herein by reference; and claims priority to Chinese patent application No. 2024203049273, filed with the State Intellectual Property Office on February 19, 2024, entitled “A cover structure, battery pack and electric device”, the entire contents of which are incorporated herein by reference. In this application; and claim priority to the Chinese patent application filed with the State Intellectual Property Office on July 16, 2024, with application number 2024216750647, and invention name “High-voltage box, battery device and electrical equipment”, all contents of which are incorporated by reference in this application; and claim priority to the Chinese patent application filed with the State Intellectual Property Office on November 29, 2023, with application number 2023232493613, and invention name “High-voltage distribution device, battery and electrical equipment”, all contents of which are incorporated by reference in this application. Technical Field

[0002] The present application relates to the field of battery production technology, and in particular to an electronic control device, a battery device, related devices, an energy storage system, and a charging network. Background Art

[0003] The power distribution unit (PD), also known as the distribution box, is a key component in power systems. In battery systems, it distributes the electrical energy from the battery cells to the various high-voltage systems of external power consumers. The PDB is typically integrated with a battery management system (BMS), which collects voltage data to optimize the battery's charge and discharge processes, extending battery life and improving overall system efficiency.

[0004] In related technologies, the BMS is connected to electronic components in the distribution box through wiring harnesses to collect electrical signals. The wiring harnesses are arranged in a messy manner, which can easily lead to misconnections, making the structure of the electronic control system complex and the integration low. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide an electronic control device, a battery device, related devices, an energy storage system and a charging network, aiming to solve the technical problems of complex, messy structure and low integration caused by the use of wiring harnesses to collect electrical signals in electronic control devices. Technical Solutions

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

[0007] In a first aspect, the present application provides an electronic control device, comprising:

[0008] A battery management circuit board having a first connection terminal electrically connected to an internal circuit of the battery management circuit board;

[0009] An electrical connection assembly includes a carrier and a conductive component, the conductive component is connected to the carrier, the conductive component includes a conductive component, a second connecting terminal and a third connecting terminal, the second connecting terminal is connected to the third connecting terminal through the conductive component, the second connecting terminal is connected to the first connecting terminal, and the third connecting terminal is used to connect a bar or relay inside the electronic control device.

[0010] In this embodiment, the electrical signal collection and transmission are realized between the relay and the battery management circuit board through the electrical connection component. The electrical connection component integrates the conductive components and each third connection terminal through the carrier, and realizes the transmission of electrical signals by plugging the first connection terminal and the second connection terminal. The overall structure of the electronic control device has a high degree of integration. The third connection terminal replaces the wiring harness structure, and the overall structure is simpler, neater and more orderly, and the regularity of the structure is improved.

[0011] In one embodiment, a plurality of third connecting terminals are provided, and each third connecting terminal is extended from a position connected to the conductive component toward a direction away from the conductive component.

[0012] In this embodiment, multiple third connection terminals are provided to collect electrical signals from different relays, transmit the electrical signals independently, and transmit them to the battery management circuit board through the second connection terminal, so as to achieve the purpose of monitoring multiple relays at the same time.

[0013] In one embodiment, the second connecting terminal is plugged into the first connecting terminal.

[0014] In this embodiment, the plug-in connection method can improve the convenience of connecting the first connection terminal and the second connection terminal.

[0015] In one embodiment, an elastic limiting portion is formed on the first connecting terminal or the second connecting terminal to enable elastic limiting connection between the first connecting terminal and the second connecting terminal.

[0016] In this embodiment, an elastic limiting portion is provided to limit the first connecting terminal and the second connecting terminal, thereby improving the connection reliability between the first connecting terminal and the second connecting terminal and enabling a detachable connection between the first connecting terminal and the second connecting terminal to be achieved more conveniently.

[0017] In one embodiment, the second connecting terminal includes a plurality of pins, each pin includes a base, an elastic limiting portion connected to the base, and a pin portion connected to the elastic limiting portion, the base is electrically connected to the conductive component, and the elastic limiting portion can be elastically deformed; a plurality of conductive holes are formed on the first connecting terminal, each elastic limiting portion corresponds to a plug-in limit located in each conductive hole, and the pin portion is electrically connected to the hole wall of the conductive hole.

[0018] In this embodiment, the elastic limiting portion is arranged on the second connecting terminal, and the pin portion is used to directly electrically connect to the hole wall of the conductive hole. The base can support the elastic limiting portion and the pin portion, so that the entire second connecting terminal can be elastically limited to each other while being electrically connected to the first connecting terminal. The structure is simple, compact, and the connection is reliable.

[0019] In one embodiment, the elastic limiting portion includes two elastic arms connected between the base and the pin portion, and the two elastic arms are arranged facing each other and form an elastic contraction space.

[0020] In this embodiment, the elastic limiting portion adopts a structural form of two elastic arms that can move toward each other or away from each other. The structure is simple and easy to manufacture, and can provide sufficient elastic extrusion force, so that the limiting between the first connecting terminal and the second connecting terminal is more reliable and the plugging and unplugging is more convenient.

[0021] In one embodiment, the conductive component is disposed opposite to the battery management circuit board along a first direction, the pin portion is extended along the first direction, and the central axis of the conductive hole is parallel to the first direction.

[0022] In this embodiment, the extension direction of the pin is in the same direction as the relative arrangement direction of the battery management circuit board and the conductive component, thereby facilitating the positive connection between the battery management circuit board and the conductive component, thereby facilitating the convenience of plugging and pairing between the first connection terminal and the second connection terminal.

[0023] In one embodiment, the conductive component and the carrier are injection molded into an integral structure.

[0024] In this embodiment, the conductive component and the carrier are formed into an integral structure by injection molding, so as to improve the reliability of the connection between the conductive component and the carrier.

[0025] In one embodiment, the conductive component and the third connecting terminal are welded into an integral structure; or

[0026] The conductive component and the third connecting terminal are connected via a fastening assembly.

[0027] In this embodiment, the connection between the conductive component and the third connection terminal can be achieved in a variety of different ways to enhance installation flexibility, connection reliability, etc. between the conductive component and the third connection terminal.

[0028] In one embodiment, the carrier has a receiving groove, the conductive component is received in the receiving groove, one end of each third connecting terminal is connected to the conductive component, and the other end protrudes from the outside of the notch of the receiving groove.

[0029] In this embodiment, the conductive component is accommodated in the accommodating groove formed on the carrier, so that the carrier plays a role of covering and protecting the conductive component.

[0030] In one embodiment, the supporting member includes a bottom plate and a vertical plate connected to the bottom plate in a circumferential direction, and the bottom plate and the vertical plate are jointly arranged to form a receiving groove; the conductive component is attached to the bottom plate.

[0031] In this embodiment, the supporting member adopts a shell plate-like structure, the bottom plate supports the conductive components, and the vertical plates are arranged around the bottom plate to form a accommodating groove. The vertical plates can provide circumferential protection for each component; the supporting member adopts a shell plate-like structure, which has a simple structure, is easy to manufacture, and is convenient for ensuring the lightweight of the electronic control device.

[0032] In one embodiment, the battery management circuit board is arranged opposite to the conductive component, and the battery management circuit board is located on one side of the notch of the accommodating groove. The battery management circuit board has a through hole for avoiding the third connecting terminal.

[0033] In this embodiment, the conductive component is arranged on one side of the notch of the accommodating groove opposite to the battery management circuit board. By providing a through hole in the battery management circuit board, the third connection terminal can be avoided by the battery management circuit board, thereby making the assembly structure between the battery management circuit board and the third connection terminal more compact, which is conducive to improving space utilization.

[0034] In one embodiment, the electronic control device further includes a first positioning structure connected to the battery management circuit board and a second positioning structure connected to the carrier, and the first positioning structure and the second positioning structure are plugged into each other.

[0035] In this embodiment, the first positioning structure and the second positioning structure are provided to improve the assembly accuracy between the battery management circuit board and the carrier, and further improve the accuracy of the pairing of the first connecting terminal and the second connecting terminal.

[0036] In one embodiment, the conductive component is extended along the second direction, the second connecting terminal is located at an extended end of the conductive component, and the plurality of third connecting terminals are spaced apart in the second direction.

[0037] In this embodiment, the second connection terminal is disposed at an extended end of the conductive component, thereby avoiding the middle area to reduce interference with other electrical components, making the space arrangement more reasonable and improving space utilization.

[0038] In one embodiment, the relay has a conducting terminal, and the electronic control device includes a locking component connected between the conducting terminal and the third connecting terminal.

[0039] In this embodiment, the conducting terminal and the third connecting terminal are connected by a locking assembly, so that the third connecting terminal and the conducting terminal are detachable, which facilitates the maintenance and replacement of various components at a later time and is more convenient and flexible to use.

[0040] In one embodiment, the relay has a conducting terminal connected to the third connecting terminal, and the conducting terminal is a high-voltage terminal.

[0041] In this embodiment, high-voltage sampling can protect the battery from damage caused by overvoltage and undervoltage, ensuring that the battery operates within a safe operating range.

[0042] In a second aspect, the present application provides a battery device comprising a battery cell assembly and any one of the above-mentioned electronic control devices, wherein the battery cell assembly and the electronic control device are electrically connected.

[0043] In a third aspect, the present application provides an energy storage device comprising a plurality of battery devices as described above, the battery devices being used to store or provide electrical energy.

[0044] In a fourth aspect, the present application provides an energy storage system, comprising a power conversion device and the above-mentioned energy storage device, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0045] In a fifth aspect, the present application provides an electrical device, comprising any one of the above-mentioned battery devices, the above-mentioned energy storage devices or the above-mentioned energy storage systems, wherein the battery device is used to store or provide electrical energy.

[0046] In a sixth aspect, the present application provides a charging network, comprising a charging pile and the above-mentioned energy storage device or the above-mentioned energy storage system, wherein the energy storage device is used to provide electrical energy to the charging pile.

[0047] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0049] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0050] FIG2 is a schematic diagram of an exploded structure of a battery device provided in some embodiments of the present application;

[0051] FIG3 is a schematic structural diagram of an electronic control device provided in some embodiments of the present application;

[0052] FIG4 is a schematic diagram of an exploded structure of an electronic control device provided in some embodiments of the present application;

[0053] FIG5 is a schematic structural diagram of the assembly of a battery management circuit board, a first connection terminal, and a third connection terminal in an electronic control device provided in some embodiments of the present application;

[0054] FIG6 is a schematic diagram of the exploded structure of FIG5 ;

[0055] FIG7 is a partial enlarged view of position B in FIG6;

[0056] FIG8 is a partial enlarged view of position C in FIG7;

[0057] FIG9 is a second schematic diagram of the exploded structure of FIG5 ;

[0058] FIG10 is a third schematic diagram of the exploded structure of FIG5 ;

[0059] FIG11 is a cross-sectional view taken along line AA in FIG3 .

[0060] Explanation of reference numerals: 1000, vehicle; 1100, battery device; 1110, battery cell assembly; 1120, electronic control device; 1121, battery management circuit board; 11211, through hole; 1122, first connecting terminal; 11221, guide hole; 1123, electrical connection assembly; 11231, carrier; 11231a, receiving groove; 11231b, bottom plate; 11231c, vertical plate; 11232, conductive component; 11233, second connecting terminal; 11234, pin; 11235, base; 11236, elastic limiting portion; 11 236a, elastic arm; 11236b, elastic shrinkage space; 11237, pin portion; 11238, first positioning structure; 11239, second positioning structure; 1124, electronic component; 11240, third connecting terminal; 11241, conductive terminal; 1125, base assembly; 11251, mounting groove; 1126, locking assembly; 1130, box body; 1131, first part; 1132, second part; 1133, accommodating space; 1200, controller; 1300, motor; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0061] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0063] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0064] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0065] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0066] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0067] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0068] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0069] A battery device may include one or more battery cell assemblies to provide voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or in series via a busbar.

[0070] The battery device may be a battery pack, which generally includes a housing and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the housing.

[0071] The battery system also includes a high-voltage distribution unit (BDU) and a battery management system (BMS). The high-voltage distribution unit can be commonly referred to as a distribution box or high-voltage distribution box. The distribution box is a key component in the power system. In the battery system, the distribution box can distribute the electrical energy in the battery cell assembly to the various high-voltage systems of the external power consumption device; the high-voltage distribution unit can control the smooth operation of the battery device's charging and discharging circuits. The battery management system is mainly responsible for intelligent management and maintenance of the battery system, monitoring the battery status, and ensuring the safe operation of the battery. The power of the battery cell assembly is transmitted to the high-voltage distribution unit and then transmitted to the power consumption equipment through the high-voltage distribution unit. The voltage, current, and temperature parameters of the battery cell assembly are collected and monitored by the battery management system. The battery management system controls the on and off of the circuit in the high-voltage distribution unit, thereby controlling the power transmission of the battery cell assembly to the power consumption equipment battery management system. The distribution box is usually integrated with the battery management system (BMS). The BMS optimizes the battery charging and discharging process by collecting voltage data, extending battery life and improving the efficiency of the entire system.

[0072] In a battery device, the high-voltage distribution device mainly controls the smooth operation of the charging and discharging circuits of the battery device. It is responsible for controlling the power-on and power-off processes, pre-charging processes, and charging processes of the high-voltage electrical circuit. The high-voltage distribution device includes various electronic components and electrical connection components for realizing circuit connections, as well as sampling components for collecting circuit signals and connectors for transmitting electrical signals. For example, electronic components include high-voltage relays, shunts, pre-charging relays, pre-charging resistors, and fuses; electrical connection components include copper busbars, aluminum busbars, wiring harnesses, etc.; sampling components include low-voltage sampling lines, sampling terminals, etc.; connectors include low-voltage connectors, high-voltage connectors, etc.

[0073] The main functions of the battery management system include data acquisition, status detection, safety protection, charging control, energy management, and balancing management. It includes a main control unit, namely the battery management unit (BMU). The BMU includes data acquisition circuits, sensors, and a microcontroller (MCU) to process the collected data and communicate with other vehicle systems. In a distributed architecture, the battery management system can also include a slave control unit (CSC). The CSC is responsible for detecting a certain number of battery cells or modules, collecting voltage, current, and temperature data, and sending this information to the BMU. The CSC mainly includes sensors and data acquisition circuits for detecting battery cells.

[0074] However, the electronic components in the high-voltage distribution device of the related products are connected to the BMU through a wiring harness. Since there are many locations for voltage collection, the number of wiring harnesses is large and the number of wiring locations is also large, resulting in a messy wiring harness inside the high-voltage distribution device. It is very easy to have the risk of wrong connection during wiring or maintenance, and it takes up a lot of space inside the battery device, resulting in a complex structure and low integration between the electronic components and the BMU.

[0075] In view of this, an embodiment of the present application provides an electronic control device, which adds an electrical connection component between the battery management system and the electronic component (specifically a relay). In the electrical connection component, the third connection terminal transmits the collected electrical signal on the bar or relay to the second connection terminal through a conductive component. The second connection terminal is connected to the first connection terminal on the battery management circuit board, so that the sampling and transmission positions are centrally arranged, eliminating the wiring harness, which is conducive to saving space, simplifying the structure, and improving the integration of the entire device.

[0076] Specifically, referring to Figures 3-5, an embodiment of the present application provides an electronic control device 1120, which includes a battery management circuit board 1121 and an electrical connection component 1123, wherein the battery management circuit board 1121 has a first connection terminal 1122, and the first connection terminal is electrically connected to the internal circuit of the battery management circuit board 1121; the electrical connection component 1123 includes a carrier 11231 and a conductive component 11232, the conductive component 11232 is connected to the carrier 11231, the conductive component 11232 includes a conductive component 11232, a second connection terminal 11233 and a third connection terminal 11240, the second connection terminal 11233 is connected to the third connection terminal 11240 through the conductive component 11232, the second connection terminal 11233 is connected to the first connection terminal 1122, and the third connection terminal 11240 is used to connect to the bar or relay 1124 inside the electronic control device.

[0077] Among them, for relay 1124 or bar, relay 1124 is an electronic component, bar is a conductive structure, bar can be a conductive structure connected to relay 1124, relay 1124 includes positive relay, pre-charge relay, negative relay, etc. Relay 1124 has a conductive terminal 11241, conductive terminal 11241 can be understood as a conductive structure on relay 1124 for collecting and outputting electrical signals. In this example, conductive terminal 11241 can be explained as a voltage terminal, that is, in this example, the collected electrical signal can be explained as a voltage signal. The third connecting terminal 11240 can be in contact with the conductive terminal 11241, so as to achieve conduction and electrical connection between the two, and the third connecting terminal 11240 can obtain the electrical signal data on the conductive terminal 11241. The conductive terminal 11241 can adopt a sheet-shaped, linear or filament-shaped conductive structure. The conductive terminal 11241 can also be understood as a contact terminal or a copper busbar structure connected to the contact terminal.

[0078] The battery management circuit board 1121 is a key component of the battery management system. In this example, the battery management circuit board 1121 can be a circuit board of the battery management unit (BMU) or a circuit board integrating the circuits of the BMU and the CSC. The battery management system can have a housing, to which the battery management circuit board 1121 can be connected. Alternatively, if the battery management system does not have a housing, the battery management circuit board 1121 can be directly connected to the carrier 11231 in the electrical connection assembly 1123.

[0079] The first connection terminal 1122 is electrically connected to the battery management circuit board 1121. The first connection terminal 1122 can be understood as an integrated metal conductive port structure or metal conductive interface structure. For example, the first connection terminal 1122 can adopt a pin structure or a plug-in pin structure. The first connection terminal 1122 can be a sheet, filament, line, or cylindrical metal member capable of transmitting electrical signals. The first connection terminal 1122 is made of a highly conductive material, such as copper, nickel, or aluminum. The first connection terminal 1122 can be connected to the battery management circuit board 1121 by welding.

[0080] The electrical connection component 1123 is arranged between the relay 1124 and the battery management circuit board 1121. The electrical connection component 1123 is mainly used to collect the electrical signals on the relay 1124 or the bar and transmit the electrical signals to the battery management circuit board 1121. The carrier 11231 is used to carry the conductive component 11232 and the second connection terminal 11233. The carrier 11231 can also be used to carry the battery management circuit board 1121. The carrier 11231 supports and fixes each component and plays a bearing role.

[0081] The third connection terminal 11240 is used to collect electrical signals from each relay 1124. It is understood that there are multiple third connection terminals 11240. One end of each third connection terminal 11240 is electrically connected to a corresponding conductive terminal 11241 on a different relay 1124, and the other end of each third connection terminal 11240 is electrically connected to the conductive component 11232. The third connection terminal 11240 can be made of a rigid metal material and can be in a sheet or column shape. The third connection terminal 11240 can be understood as a bar structure capable of collecting and transmitting electrical signals. The third connection terminal 11240 can be made of copper, nickel, or aluminum. For example, the third connection terminal 11240 can be a sheet-like copper bar structure.

[0082] The conductive component 11232 and the third connecting terminal 11240 can be understood as an electrical connecting component. There can be multiple third connecting terminals 11240. The conductive component 11232 and each third connecting terminal 11240 are electrically connected and conductive, so that the electrical signal can be collected and transmitted. The conductive component 11232 can be understood as a conductive structure that integrates the transmission of electrical signals. For example, the conductive component 11232 can be a rigid metal conductive structure. The conductive component 11232 can be prepared using copper materials, nickel materials or aluminum materials, for example, the conductive component 11232 can be a copper busbar structure.

[0083] When connecting the conductive component 11232 to the carrier 11231, one method is to prepare the conductive component 11232 as a whole and then connect the various transmission parts. In this case, the conductive component 11232 and the carrier 11231 are first assembled. After assembly, the conductive component 11232 is split, disconnected, or otherwise operated to make the various transmission parts independent of each other. Another method is to split, disconnect, or otherwise operate the conductive component 11232 before connecting it to the carrier 11231, making the various transmission parts on the conductive component 11232 independent of each other. Then, the conductive component 11232 is assembled with the carrier 11231. The above two methods can be selected based on the convenience of the specific operation.

[0084] The second connection terminal 11233 is electrically connected to the conductive component 11232. The second connection terminal 11233 can also be understood as an integrated metal conductive port structure or metal conductive interface structure. For example, the second connection terminal 11233 can adopt a pin structure or a pin 11234 structure. The second connection terminal 11233 can be a sheet, filament, line, or cylindrical metal member capable of transmitting electrical signals. The second connection terminal 11233 is made of a highly conductive material, such as copper, nickel, or aluminum. The second connection terminal 11233 can be connected to the conductive component 11232 by welding.

[0085] The second connection terminal 11233 is electrically connected to the first connection terminal 1122, thereby enabling signal transmission between the battery management circuit board 1121 and the electrical connection assembly 1123. A detachable connection is employed between the second connection terminal 11233 and the first connection terminal 1122 to facilitate installation and removal of the battery management circuit board 1121 and the electrical connection assembly 1123.

[0086] In this embodiment, the relay and the battery management circuit board 1121 can collect and transmit electrical signals through the electrical connection component 1123. The electrical connection component 1123 integrates the conductive component 11232 through the carrier 11231. In the conductive component 11232, the second connection terminal 11233 is connected to the third connection terminal 11240 through the conductive component 11232. The first connection terminal 1122 and the second connection terminal 11233 are connected to realize the transmission of electrical signals, so that the overall structure of the electronic control device 1120 has a high degree of integration. The electrical connection component 1123 replaces the wiring harness structure, and the overall structure is simpler, neater and more orderly, and the regularity of the structure is improved.

[0087] 5 and 6 , in some embodiments, a plurality of third connection terminals 11240 are provided, and each third connection terminal 11240 extends from a position connected to the conductive component 11232 toward a direction away from the conductive component 11232 .

[0088] Specifically, the third connection terminal 11240 can be understood as a sheet-like structure. The third connection terminal 11240 can extend a certain length away from the conductive component 11232, and the extended end of the third connection terminal 11240 can be electrically connected to the relay 1124.

[0089] Since multiple third connection terminals 11240 are electrically connected to the conductive component 11232, it can be seen that the conductive component 11232 is used to transmit different electrical signals. Therefore, it can be known that different transmission parts are formed on the conductive component 11232 corresponding to each third connection terminal 11240, and each transmission part is independent of each other. The transmission part can also be understood as a mutually independent electrical signal transmission path formed on the conductive component 11232, thereby realizing the integration and transmission of different electrical signals.

[0090] In this embodiment, multiple third connection terminals 11240 are provided to collect electrical signals from different relays 1124, transmit the electrical signals independently, and transmit them to the battery management circuit board 1121 through the second connection terminal 11233, so as to achieve the purpose of monitoring multiple relays 1124 at the same time.

[0091] 5-7 , in some embodiments, the second connection terminal 11233 is plugged into the first connection terminal 1122 .

[0092] Since the second connection terminal 11233 is plugged into and matched with the first connection terminal 1122 , it can be understood that one of the first connection terminal 1122 and the second connection terminal 11233 is a male terminal and the other is a female terminal, thereby achieving plug-in conduction.

[0093] In this embodiment, the plug-in connection method can improve the convenience of connecting the first connection terminal 1122 and the second connection terminal 11233.

[0094] 6-8 , in some embodiments, an elastic limiting portion 11236 is formed on the first connection terminal 1122 or the second connection terminal 11233 to enable an elastic limiting connection between the first connection terminal 1122 and the second connection terminal 11233 .

[0095] The elastic limiting portion 11236 is used to limit the position between the first connecting terminal 1122 and the second connecting terminal 11233 after they are plugged into each other, so that the first connecting terminal 1122 and the second connecting terminal 11233 are not easily separated.

[0096] The elastic limiting portion 11236 is a structure that can be elastically extended, so that the elastic limiting portion 11236 limits the position between the first connection terminal 1122 and the second connection terminal 11233 in an elastic manner. For example, the first connection terminal 1122 is a male terminal formed with a pin 11234, and the second connection terminal 11233 is a female terminal formed with a plug hole (or a guide hole 11221). The elastic limiting portion 11236 can be made of an elastic material, or the elastic limiting portion 11236 is designed to be elastically extended. The structural form makes the elastic limiting portion 11236 be arranged on the first connecting terminal 1122 or the second connecting terminal 11233. When the first connecting terminal 1122 and the second connecting terminal 11233 are plugged into each other, the elastic limiting portion 11236 can elastically deform between the plug pin 11234 and the plug-in hole. In the radial direction of the plug-in hole, the elastic limiting portion 11236 can form a radial extrusion force on the plug-in hole and the plug pin 11234, thereby achieving the purpose of friction limiting the first connecting terminal 1122 and the second connecting terminal 11233.

[0097] Since elastic limiting is adopted, it can be seen that with the help of external force, after overcoming the elastic force, the first connecting terminal 1122 can be separated from the second connecting terminal 11233, thereby realizing a detachable connection between the first connecting terminal 1122 and the second connecting terminal 11233.

[0098] In this embodiment, an elastic limiting portion 11236 is provided to limit the first connecting terminal 1122 and the second connecting terminal 11233, thereby improving the connection reliability between the first connecting terminal 1122 and the second connecting terminal 11233 and enabling a detachable connection between the first connecting terminal 1122 and the second connecting terminal 11233 to be achieved more conveniently.

[0099] 6-8 , in some embodiments, the second connecting terminal 11233 includes a plurality of pins 11234, each pin 11234 includes a base 11235, an elastic limiting portion 11236 connected to the base 11235, and a pin portion 11237 connected to the elastic limiting portion 11236, the base 11235 is electrically connected to the conductive component 11232, and the elastic limiting portion 11236 can elastically shrink; a guide hole 11221 is formed on the first connecting terminal 1122, each elastic limiting portion 11236 is correspondingly limited in the guide hole 11221, and the pin portion 11237 is electrically connected to the hole wall of the guide hole 11221.

[0100] The base 11235 can be considered as the main structural part of the second connecting terminal 11233. The base 11235 can be used to connect to or support the elastic limiting portion 11236. The base 11235 can be made of a conductive metal material. For example, the base 11235 can be in the form of a copper sheet, a copper column, or the like. The base 11235 can have two opposing connecting ends, one of which is electrically connected to the conductive portion on the conductive component 11232, and the other is connected to the elastic limiting portion 11236. The elastic limiting portion 11236 can be a conductive elastic structure. The structural design enables the elastic limiting portion 11236 to elastically deform in the radial direction of the guide hole 11221, and the elastic limiting portion 11236 can contract and expand in the radial direction of the guide hole 11221. When the first connecting terminal 1122 and the second connecting terminal 11233 are plugged into each other, the elastic limiting portion 11236 is squeezed into the guide hole 11221. In the radial direction of the guide hole 11221, a radial extrusion force is formed between the elastic limiting portion 11236 and the guide hole 11221, thereby achieving the purpose of frictional limitation between the first connecting terminal 1122 and the second connecting terminal 11233.

[0101] Pin portion 11237 is connected to the end of elastic retaining portion 11236 away from base portion 11235. Pin portion 11237 is made of a conductive metal material and can have a sheet or columnar structure. Pin portion 11237, elastic retaining portion 11236, and base portion 11235 are all electrically conductive and can be formed as an integrally formed metal conductive structure. Pin portion 11237 is electrically connected to the wall of conductive hole 11221. As can be seen, conductive hole 11221 serves as the conductive connection surface for first connection terminal 1122. Therefore, contact between pin portion 11237 and the wall of conductive hole 11221 establishes electrical connection between second connection terminal 11233 and first connection terminal 1122.

[0102] In this embodiment, the elastic limiting portion 11236 is arranged on the second connecting terminal 11233, and the pin portion 11237 is used to directly electrically connect to the hole wall of the guide hole 11221. The base 11235 can support the elastic limiting portion 11236 and the pin portion 11237, so that the entire second connecting terminal 11233 can be elastically limited to each other while being electrically connected to the first connecting terminal 1122. The structure is simple and compact, and the connection is reliable.

[0103] 7 and 8 , in some embodiments, the elastic limiting portion 11236 includes two elastic arms 11236 a connected between the base 11235 and the pin portion 11237 , and the two elastic arms 11236 a are disposed facing each other and form an elastic contraction space 11236 b .

[0104] The elastic arm 11236a can be understood as a sheet-like structure with a certain extended length. The two sheet-like structures are arranged facing each other, and the facing arrangement can be understood as a relative arrangement. The two elastic arms 11236a are spaced apart and form a spacing space, which is the elastic shrinkage space 11236b. Therefore, it can be understood that the extension trajectory (or shape) of the two elastic arms 11236a in the length direction is curved, such as the elastic arm 11236a is in the shape of a circular arc, and the two elastic arms 11236a are both convexly bent in opposite directions, thereby forming an elastic shrinkage space 11236b between the two elastic arms 11236a.

[0105] Elastic deformation includes contraction deformation and expansion deformation. When the elastic limiting portion 11236 elastically contracts, the hole wall of the guide hole 11221 squeezes the two elastic arms 11236a toward the middle, so that the convex positions of the two elastic arms 11236a bend and deform toward the middle of the elastic contraction space 11236b, and the elastic contraction space 11236b shrinks. An elastic extrusion force is formed between the elastic arms 11236a and the hole wall of the guide hole 11221 to achieve the limitation of the second connecting terminal 11233; after the elastic limiting portion 11236 is separated from the guide hole 11221, the two elastic arms 11236a expand and deform in opposite directions, and the elastic contraction space 11236b increases.

[0106] The elastic shrinkage space 11236b can be understood as a hole cavity of a hole structure formed between the two elastic arms 11236a. The two elastic arms 11236a are subjected to extrusion force, the elastic arms 11236a are deformed, and the space of the hole cavity increases and decreases accordingly, thereby realizing the elastic deformation of the elastic limiting part 11236.

[0107] Since the elastic limiting portion 11236 is connected between the base 11235 and the pin portion 11237, it can be seen that one end of each elastic arm 11236a is connected to the base 11235, and the other end is connected to the pin portion 11237. An integrated structure can be adopted between the base 11235, the pin portion 11237 and the two elastic arms 11236a.

[0108] In this embodiment, the elastic limiting portion 11236 adopts a structural form of two elastic arms 11236a that can move toward each other or away from each other. The structure is simple and easy to manufacture, and can provide sufficient elastic extrusion force, so that the limiting between the first connecting terminal 1122 and the second connecting terminal 11233 is more reliable and the plugging and unplugging is more convenient.

[0109] 6-9 , in some embodiments, along the first direction X, the conductive component 11232 is disposed opposite the battery management circuit board 1121 , the pin portion 11237 extends along the first direction X, and the central axis of the guide hole 11221 is parallel to the first direction X.

[0110] Along the first direction X, the conductive component 11232 and the battery management circuit board 1121 are arranged relative to each other, which means that in the first direction X, the conductive component 11232 and the battery main control board are distributed at both ends of the first direction X. For example, the conductive component 11232 and the battery management circuit board 1121 are both sheet-shaped, and the first direction X is a direction perpendicular to the conductive component 11232 and the battery management circuit board 1121.

[0111] The pin portion 11237 extends along the first direction X to form a columnar or needle-like structure. The central axis of the guide hole 11221 is parallel to the first direction X. Therefore, the pin portion 11237 is inserted into the guide hole 11221 along the first direction X. It is understood that the pin portion 11237 can be located on the surface of the conductive component 11232 opposite the battery management circuit board 1121. Correspondingly, the guide hole 11221 is defined on the surface of the battery management circuit board 1121 opposite the conductive component 11232. Thus, by moving the battery management circuit board 1121 along the first direction X toward the third connection terminal 11240, the pin portion 11237 can be correspondingly inserted into the guide hole 11221. This assembly can be understood as a front-to-front plug-in assembly of the battery management circuit board 1121 and the conductive component 11232.

[0112] In this embodiment, the extension direction of the pin 11234 is in the same direction as the relative setting direction of the battery management circuit board 1121 and the conductive component 11232, thereby facilitating the direct connection between the battery management circuit board 1121 and the conductive component 11232, thereby facilitating the convenience of plugging and pairing between the first connection terminal 1122 and the second connection terminal 11233.

[0113] There are many ways to connect the conductive component 11232 and the carrier 11231. One feasible connection method is to injection mold the conductive component 11232 and the carrier 11231 into an integrated structure.

[0114] Specifically, the carrier 11231 can be injection molded using an injection molding machine. Before injection molding the carrier 11231 in the injection molding machine, the conductive component 11232 can be placed in the injection mold of the injection molding machine, and the raw material of the carrier 11231 can be injected into the injection molding machine, so that the carrier 11231 and the conductive component 11232 are injection molded as one piece.

[0115] The integrated injection molding method can enhance the connection strength between the conductive component 11232 and the carrier 11231 and improve the reliability of the connection between the two.

[0116] Another possible connection method is to weld the conductive component 11232 and the carrier 11231 into an integrated structure.

[0117] Specifically, the conductive component 11232 is made of conductive metal material, the main structure of the carrier 11231 can be made of non-metallic material, and a metal part can be connected to the carrier 11231, so that the conductive component 11232 and the metal part on the carrier 11231 can be welded and fixed.

[0118] The welding method is adopted to make the connection between the conductive component 11232 and the carrier 11231 more convenient and reliable.

[0119] Another possible connection method is that the conductive component 11232 is bonded to the carrier 11231 .

[0120] Specifically, the conductive component 11232 has a first bonding surface, and the carrier 11231 has a second bonding surface relative to the first bonding surface. An adhesive colloid is set between the first bonding surface and the second bonding surface to fix the conductive component 11232 and the carrier 11231.

[0121] The bonding method is more convenient, not easy to damage the structure of the conductive component 11232 and the carrier 11231, and saves costs. In order to improve the connection strength between the conductive component 11232 and the carrier 11231, the number of adhesive colloids, the bonding area, etc. can be increased, thereby increasing the number and area of ​​the connection positions between the conductive component 11232 and the carrier 11231.

[0122] Another possible connection method is that the conductive component 11232 and the carrier 11231 are connected via a fastening assembly.

[0123] Specifically, the fastening assembly can be a combination of one or more of a bolt assembly, a rivet assembly, a snap assembly, etc. For example, the fastening assembly is a bolt assembly, and correspondingly, through holes or threaded holes can be opened on the conductive component 11232 and the carrier 11231, and the fastening assembly limits and fixes the conductive component 11232 and the carrier 11231 through a threaded connection.

[0124] The connection method using fastening components makes the assembly between the conductive component 11232 and the carrier 11231 more flexible, and it is possible to achieve a detachable connection between the conductive component 11232 and the carrier 11231, thereby facilitating separate maintenance and replacement at a later time, which is conducive to reducing maintenance costs.

[0125] There are many ways to connect the conductive component 11232 and the third connection terminal 11240. One feasible connection method is to injection mold the conductive component 11232 and the third connection terminal 11240 into an integral structure.

[0126] Specifically, the conductive component 11232 and the third connection terminal 11240 can be injection molded by an injection molding machine. By designing the mold of the injection molding machine, the conductive component 11232 and the third connection terminal 11240 can be injection molded into an integrated structure in one casting.

[0127] The use of one-piece injection molding can reduce the number of assembly steps between the conductive component 11232 and the carrier 11231 , and can enhance the connection strength between the conductive component 11232 and the carrier 11231 , thereby improving the reliability of the connection between the two.

[0128] Another feasible connection method is that the conductive component 11232 and the third connection terminal 11240 are welded into an integral structure.

[0129] Specifically, the conductive component 11232 is made of conductive metal material, and the third connecting terminal 11240 is also made of conductive metal material. Therefore, the conductive component 11232 and the third connecting terminal 11240 can be directly welded, and the welding position can be deburred and polished, etc., which is beneficial to reduce the overcurrent resistance.

[0130] By adopting the welding method, the connection between the conductive component 11232 and each third connection terminal 11240 is made more convenient and reliable.

[0131] Another possible connection method is that the conductive component 11232 and the third connection terminal 11240 are connected via a fastening assembly.

[0132] Specifically, the fastening assembly can be a combination of one or more of a bolt assembly, a rivet assembly, a snap assembly, etc. For example, the fastening assembly is a bolt assembly, and correspondingly, through holes or threaded holes can be opened on the conductive component 11232 and the third connecting terminal 11240, and the fastening assembly limits and fixes the conductive component 11232 and the third connecting terminal 11240 through a threaded connection.

[0133] The connection method using the fastening assembly makes the assembly between the conductive component 11232 and the third connection terminal 11240 more flexible, and it is possible to achieve a detachable connection between the conductive component 11232 and each third connection terminal 11240, thereby facilitating individual maintenance and replacement at a later stage, which is conducive to reducing maintenance costs.

[0134] As shown in Figure 9, in some embodiments, the carrier 11231 has a receiving groove 11231a, the conductive component 11232 is received in the receiving groove 11231a, and one end of each third connection terminal 11240 is connected to the conductive component 11232, and the other end protrudes from the outside of the notch of the receiving groove 11231a.

[0135] The carrier 11231 can adopt a frame-type or shell-type structure, which helps reduce the weight of the carrier 11231 itself. Taking the shell-type structure as an example, the carrier 11231 includes a shell that surrounds the receiving groove 11231a. The conductive component 11232 is connected to the carrier 11231 and is located in the receiving groove 11231a. For example, the conductive component 11232 can be attached to the bottom of the receiving groove 11231a.

[0136] Each third connection terminal 11240 can be a sheet or columnar structure of a predetermined length. One end of each third connection terminal 11240 extends within the receiving groove 11231a and connects to the conductive component 11232. The other end of each third connection terminal 11240 extends from the notch of the receiving groove 11231a to the outside of the receiving groove 11231a, forming an end portion protruding from the outside of the receiving groove 11231a. This end portion is used to connect to the conductive terminal 11241 on the relay 1124. The extension direction of each third connection terminal 11240 can be parallel to the depth of the groove.

[0137] In this embodiment, the conductive component 11232 is accommodated in the accommodation groove 11231 a formed on the carrier 11231 , so that the carrier 11231 plays a role of covering and protecting the conductive component 11232 .

[0138] 9 and 10 , in some embodiments, the carrier 11231 includes a base plate 11231b and a vertical plate 11231c circumferentially connected to the base plate 11231b , and the base plate 11231b and the vertical plate 11231c are jointly arranged to form a receiving groove 11231a ; the conductive component 11232 is attached to the base plate 11231b .

[0139] Specifically, the carrier 11231 utilizes a shell-like structure. The bottom plate 11231b is primarily used to connect to and support the conductive component 11232. The vertical plate 11231c is connected to the periphery of the bottom plate 11231b, forming a receiving groove 11231a. The vertical plate 11231c circumferentially protects the conductive component 11232. The second connecting terminal 11233 is connected to the conductive component 11232 and received within the receiving groove 11231a. The vertical plate 11231c also protects the second connecting terminal 11233.

[0140] When the first connection terminal 1122 and the second connection terminal 11233 are connected together, the battery management circuit board 1121 is accommodated in the accommodation groove 11231a, so that the vertical plate 11231c can also protect the battery management circuit board 1121.

[0141] In this embodiment, the supporting member 11231 adopts a shell plate structure, the bottom plate 11231b supports the conductive component 11232, and the vertical plate 11231c is arranged around the bottom plate 11231b to form a receiving groove 11231a. The vertical plate 11231c can provide circumferential protection for each component; the supporting member 11231 adopts a shell plate structure, which has a simple structure and is easy to manufacture, so as to ensure the lightweight of the electronic control device 1120.

[0142] 4-6 and 9 , in some embodiments, the battery management circuit board 1121 is arranged opposite to the conductive component 11232 , and the battery management circuit board 1121 is located on one side of the notch of the accommodating groove 11231 a . The battery management circuit board 1121 has a through hole 11211 for avoiding the third connection terminal 11240 .

[0143] The conductive component 11232 can be sheet-shaped. When the battery management circuit board 1121 is connected to the carrier 11231, the battery management circuit board 1121 and the conductive component 11232 are positioned opposite each other. Each third connection terminal 11240 protrudes outward from the conductive component 11232 toward the notch of the receiving groove 11231a. The battery management circuit board 1121 is positioned on one side of the notch of the receiving groove 11231a. Alternatively, the battery management circuit board 1121 can be positioned at the notch of the receiving groove 11231a, so that the conductive component 11232 and the battery management circuit board 1121 are positioned relative to each other. The receiving groove 11231a also serves to accommodate the battery management circuit board 1121, saving space. Therefore, it can be seen that the battery management circuit board 1121 needs to avoid interference with the third connection terminals 11240.

[0144] To avoid this problem, through-holes 11211 are provided on the battery management circuit board 1121. The number of through-holes 11211 should be equal to the number of third connection terminals 11240 that may interfere with the battery management circuit board 1121. The number of through-holes 11211 is less than or equal to the number of third connection terminals 11240. One third connection terminal 11240 is inserted into each through-hole 11211. This means that some third connection terminals 11240 do not interfere with the battery management circuit board 1121. For example, the length of the battery management circuit board 1121 is smaller than the length of the conductive component 11232, and there are six third connection terminals 11240. Among the six third connection terminals 11240, the extended ends of two of the third connection terminals 11240 will not interfere with the battery management circuit board 1121. Therefore, the two third connection terminals 11240 do not need to be plugged in and matched with the battery management circuit board 1121; corresponding to the other four third connection terminals, four through holes 11211 are opened on the battery management circuit board 1121, and each third connection terminal 11240 is plugged in and matched with each through hole 11211 one by one.

[0145] There should be no electrical connection between the battery management circuit board 1121 and each third connection terminal 11240. Therefore, the hole wall of the through hole 11211 and the area near the hole wall need to be insulated so that the through hole 11211 is an insulating hole. For example, an insulating layer is coated or connected to the hole wall of the insulating hole so that after the third connection terminal 11240 is passed through the through hole 11211, the insulating layer plays an insulating role, thereby achieving the purpose of insulating each third connection terminal 11240 from the hole wall of the through hole 11211.

[0146] In this embodiment, the conductive component 11232 is arranged opposite to the battery management circuit board 1121 on one side of the notch of the accommodating groove 11231a. By opening a through hole 11211 on the battery management circuit board 1121, the third connection terminal 11240 can be made to avoid the battery management circuit board 1121, thereby making the assembly structure between the battery management circuit board 1121 and the third connection terminal 11240 more compact, which is conducive to improving space utilization.

[0147] 5 and 6 , in some embodiments, the electronic control device 1120 further includes a first positioning structure 11238 connected to the battery management circuit board 1121 and a second positioning structure 11239 connected to the carrier 11231 , and the first positioning structure 11238 and the second positioning structure 11239 are plugged into each other.

[0148] Since the battery management circuit board 1121 and the carrier 11231 need to be assembled so that the first connection terminal 1122 and the second connection terminal 11233 can be plugged together, in order to improve the accuracy of positioning between the first connection terminal 1122 and the second connection terminal 11233, the battery management circuit board 1121 and the carrier 11231 need to be installed and positioned.

[0149] Specifically, a first positioning structure 11238 is configured on the battery management circuit board 1121, and a second positioning structure 11239 is configured on the carrier 11231. When the battery management circuit board 1121 is connected to the carrier 11231, the first positioning structure 11238 and the second positioning structure 11239 can be plugged together to achieve the functions of positioning and limiting.

[0150] Either the first positioning structure 11238 or the second positioning structure 11239 can be a protruding structure, while the other can be a recessed structure. The protruding structure and the recessed structure can be plugged together to achieve positioning. The protruding structure can be columnar. The first positioning structure 11238 and the second positioning structure 11239 can be formed into multiple groups to improve positioning accuracy.

[0151] In this embodiment, by providing the first positioning structure 11238 and the second positioning structure 11239, it is helpful to improve the assembly accuracy between the battery management circuit board 1121 and the carrier 11231, and further improve the accuracy of the pairing of the first connection terminal 1122 and the second connection terminal 11233.

[0152] 9 and 10 , in some embodiments, the conductive component 11232 extends along the second direction Y, the second connection terminal 11233 is located at an extended end of the conductive component 11232 , and a plurality of third connection terminals 11240 are spaced apart in the second direction Y.

[0153] The conductive component 11232 can be sheet-shaped, for example, a copper busbar structure, and the second direction Y is the lengthwise direction of the conductive component 11232. The second connecting terminal 11233 is connected to an extended end of the conductive component 11232, that is, the second connecting terminal 11233 is located at one end or near the end in the lengthwise direction of the conductive component 11232, thereby reducing interference between the second connecting terminal 11233 and other electrical components and facilitating efficient use of space.

[0154] Multiple third connection terminals 11240 are spaced apart in the second direction Y, so it can be seen that the multiple relays 1124 are spaced apart in the second direction Y. The electrical signals from the multiple relays 1124 at different locations can be collected via the third connection terminals 11240 connected to the conductive terminals 11241 thereon. The dispersed third connection terminals 11240 collectively transmit the electrical signals to the conductive components 11232. The conductive components 11232 transmit the electrical signals separately and converge them onto the second connection terminals 11233. This third connection terminal 11240 achieves the purpose of dispersed collection and centralized transmission, and the centralized second connection terminal 11233 is provided to facilitate electrical connection and pairing.

[0155] In this embodiment, the second connection terminal 11233 is arranged at an extended end of the conductive component 11232, so as to avoid the middle area to reduce interference with other electrical components, and the space layout is more reasonable, which is conducive to improving space utilization.

[0156] 3 , 4 and 11 , in some embodiments, the relay 1124 has a conducting terminal 11241 , and the electronic control device 1120 includes a locking assembly 1126 , which is connected between the conducting terminal 11241 and the third connecting terminal 11240 .

[0157] Conductive terminal 11241 is a conductive portion of relay 1124. Electrical connection is required between conductive terminal 11241 and third connection terminal 11240. This connection can be achieved using a variety of methods, such as welding, threaded connection, and snap-on locking. In this example, a locking assembly 1126 is added and connected between conductive terminal 11241 and third connection terminal 11240, thereby achieving a removable connection between conductive terminal 11241 and third connection terminal 11240.

[0158] Specifically, the conductive terminal 11241 may have a sheet-like portion with a connection hole defined therein. Correspondingly, the end of the third connection terminal 11240 also forms a sheet-like structure with a corresponding connection hole defined therein. The sheet-like portion of the conductive terminal 11241 and the sheet-like structure of the end of the third connection terminal 11240 fit together and overlap, with the connection holes correspondingly configured. The locking assembly 1126 includes a stud portion and a nut portion. The stud portion is inserted into the connection hole, and the nut portion is threadedly connected to the protruding end of the stud portion. The nut portion may be an independently movable component, or it may be integrally connected to the conductive terminal 11241 or the third connection terminal 11240.

[0159] In this embodiment, the conductive terminal 11241 and the third connecting terminal 11240 are connected by a locking assembly 1126, so that the third connecting terminal 11240 and the conductive terminal 11241 can be disassembled, so as to facilitate the subsequent maintenance and replacement of various components, and the use is more convenient and flexible.

[0160] The main reason for high voltage sampling of batteries is to ensure the safety and performance of the batteries.

[0161] High-voltage sampling measures and monitors the high-voltage cells in a battery module, protecting them from overvoltage and undervoltage. High-voltage batteries typically consist of series-connected cells, with voltages typically ranging from 100V to over 1000V. The primary purpose of high-voltage sampling is to protect the cells from overvoltage and undervoltage, ensuring they operate within a safe operating range.

[0162] High-voltage sampling plays a crucial role in battery management systems. It enables real-time monitoring of battery parameters such as voltage and current, enabling timely detection and resolution of abnormalities to prevent battery damage or safety incidents. For example, if the battery voltage is too high or too low, the high-voltage sampling system automatically takes protective measures to prevent overcharging or over-discharging, thereby extending the battery's lifespan.

[0163] Furthermore, the specific implementation method for high-voltage sampling also affects its effectiveness. For example, using resistor dividers for voltage sampling is a common method. This involves connecting multiple resistors in series to divide the voltage and then converting the total voltage. While this method is simple, it requires ensuring the accuracy and stability of the resistors to avoid measurement errors.

[0164] Therefore, the electronic control device 1120 in the present application can be used for high-voltage sampling, and the conductive terminal 11241 connected to the relay 1124 can be a high-voltage terminal. For example, if the relay is a high-voltage relay, the conductive terminal 11241 connected to the high-voltage relay is a high-voltage terminal. The high-voltage terminal is electrically connected to the third connection terminal 11240 via the locking assembly 1126 to complete the collection and transmission of high voltage. This replaces the wiring harness connection, achieves the simplification of parts, and makes the structure of the electronic control device 1120 more regular, which is conducive to saving more space, improving the space utilization of the battery device 1100, and improving the compactness of the battery device 1100, which is conducive to reducing the failure probability of the electrical connection between the components.

[0165] Of course, the conducting terminal 11241 may also be a low-voltage terminal for low-voltage sampling.

[0166] 3 , 4 and 11 , in some embodiments, the electronic control device 1120 further includes a base assembly 1125 having a plurality of mounting slots 11251 , and each relay 1124 is correspondingly mounted in each mounting slot 11251 , and the mounting slots 11251 serve to accommodate, support and limit the relays 1124 .

[0167] In a specific embodiment, referring to Figures 1-11, the electronic control device 1120 includes a battery management circuit board 1121 and an electrical connection assembly 1123. The battery management circuit board 1121 has a first connection terminal 1122, and the first connection terminal 1122 is electrically connected to the internal circuit of the battery management circuit board 1121; the electrical connection assembly 1123 includes a carrier 11231 and a conductive component 11232, the conductive component 11232 is connected to the carrier 11231, and the conductive component 11232 includes a conductive component 11232, a second connection terminal 11233 and a third connection terminal 11240. The second connection terminal 11233 is connected to the third connection terminal through the conductive component 11232. The terminals 11240 are connected, the second connection terminal 11233 is connected to the first connection terminal 1122, and the third connection terminal 11240 is used to connect the bar or relay 1124 inside the electronic control device; there are multiple third connection terminals 11240, and each third connection terminal 11240 is extended from the position connected to the conductive component 11232 in a direction away from the conductive component 11232; the second connection terminal 11233 is plugged into the first connection terminal 1122; an elastic limiting portion 11236 is formed on the first connection terminal 1122 or the second connection terminal 11233 to enable elastic limiting connection between the first connection terminal 1122 and the second connection terminal 11233; the third connection terminal 11240 is provided with a plurality of third connection terminals 11240, and each third connection terminal 11240 is extended from the position connected to the conductive component 11232 in a direction away from the conductive component 11232; the second connection terminal 11233 is plugged into the first connection terminal 1122; an elastic limiting portion 11236 is formed on the first connection terminal 1122 or the second connection terminal 11233 to enable elastic limiting connection between the first connection terminal 1122 and the second connection terminal 11233; The second connecting terminal 11233 includes a plurality of pins 11234, each of which includes a base 11235, an elastic limiting portion 11236 connected to the base 11235, and a pin portion 11237 connected to the elastic limiting portion 11236. The base 11235 is electrically connected to the conductive component 11232, and the elastic limiting portion 11236 can be elastically deformed. A plurality of guide holes 11221 are formed on the first connecting terminal 1122, and each elastic limiting portion 11236 is correspondingly inserted and limited in each guide hole 11221. The pin portion 11237 is electrically connected to the hole wall of the guide hole 11221. The elastic limiting portion 11236 includes two pins connected to the base 11235 and the pin portion 11237. The conductive member 11232 and the carrier 11231 are injection molded into an integral structure. The conductive member 11232 and the third connecting terminal 11240 are welded into an integral structure. Alternatively, the conductive member 11232 and the third connecting terminal 11240 are connected by a fastening assembly. The carrier 11231 has a receiving groove 11231a, and the conductive member 11232 is received in the receiving groove 11231a. One end of each third connecting terminal 11240 is connected to the conductive member 11232, and the other end protrudes outside the notch of the receiving groove 11231a.The battery management circuit board 1121 is positioned opposite the conductive component 11232 and is located on one side of the notch of the accommodating groove 11231a. The battery management circuit board 1121 has a through-hole for accommodating the third connecting terminal 11240. The electronic control device 1120 also includes a first positioning structure 11238 connected to the battery management circuit board 1121 and a second positioning structure 11239 connected to the carrier 11231. The first positioning structure 11238 and the second positioning structure 11239 are pluggable and mating. The electronic control device 1120 includes a locking assembly 1126 connected between the conductive terminal 11241 and the third connecting terminal 11240.

[0168] According to some embodiments of the present application, the present application further provides a battery device 1100, which includes a battery cell assembly 1110 and the electronic control device 1120 of the above embodiment. The battery cell assembly 1110 and the electronic control device 1120 are electrically connected. The battery cell assembly 1110 is provided with one or more battery cells, and the battery cell assembly 1110 includes one or more battery cells. The battery device 1100 disclosed in the embodiments of the present application can be used in an electrical device that uses the battery device 1100 as a power source or various energy storage devices and energy storage systems that use the battery device 1100 as an energy storage element.

[0169] A battery cell is the smallest unit that makes up the battery device 1100. Each battery cell can be a secondary battery cell or a primary battery cell; it can also be a lithium-sulfur battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, but is not limited to these. A battery cell can be cylindrical, flat, rectangular, or have other shapes.

[0170] The battery device 1100 may further include a housing 1130, which is used to provide a housing space 1133 for the battery cell assembly 1110 and the electronic control device 1120. Both the battery cell assembly 1110 and the electronic control device 1120 may be housed within the housing space 1133 of the housing 1130. The housing 1130 may have various structures. For example, the housing 1130 may include a first portion 1131 and a second portion 1132, which cover each other and together define the housing space 1133 for accommodating the battery cell assembly 1110. The second portion 1132 may be a hollow structure with one end open, and the first portion 1131 may be a plate-like structure. The first portion 1131 covers the open side of the second portion 1132, so that the first portion 1131 and the second portion 1132 jointly define the accommodating space 1133. The first portion 1131 and the second portion 1132 may also both be hollow structures with one end open, with the open side of the first portion 1131 covering the open side of the second portion 1132. Of course, the box 1130 formed by the first portion 1131 and the second portion 1132 may have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0171] According to some embodiments of the present application, the present application further provides an energy storage device, which includes a power conversion device and the energy storage device in the above embodiment, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0172] Specifically, the energy storage device may include one or more battery clusters to increase the voltage and capacity of the energy storage device. A battery cluster may include multiple battery devices 1100, which are connected in series via a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0173] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it at the appropriate time. For example, an energy storage device can store electrical energy during periods of low electricity consumption and provide it to relevant users or electrical equipment during periods of peak electricity consumption. The energy storage system provided in the embodiments of the present application can be any power system that requires an energy storage device.

[0174] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0175] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters housed in the cabinet.

[0176] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a master control module, a power distribution module, and a fire protection module.

[0177] As an example, the thermal management module may include a liquid cooling unit that provides cooling liquid for regulating the temperature of the battery cells to each battery device 1100 through a pipeline.

[0178] For example, the master control module can serve as the battery management unit (BMU) of a battery cluster, monitoring and managing the battery cluster. The master control module can monitor information such as the battery cluster's current, voltage, power, or temperature. For example, it can control the battery cluster's charge and discharge current and voltage. The master control module includes modules such as the slave battery management unit (SBMU) and the fusion switch.

[0179] As an example, the master control module can serve as a battery management unit (BMU) for an energy storage device, used to monitor and manage the energy storage device. The master control module can monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage device. For example, it can control the charge and discharge current and voltage of the energy storage device. As an example, the master control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH), and a fiber optic conversion module.

[0180] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., which are used to detect, alarm or extinguish fires in the energy storage system.

[0181] As an example, the power distribution module can be used to distribute power to modules in the energy storage device that require power.

[0182] According to some embodiments of the present application, the present application also provides an energy storage system, which includes a power conversion device and the energy storage device in the above embodiment, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0183] In some embodiments, the energy storage system may include one or more energy storage devices and a power converter system (PCS), wherein the power converter is connected between the power generation equipment and the energy storage device. The power generation equipment is used to generate electrical energy, and the electrical energy generated by the power generation equipment can be stored in the energy storage device through the power converter. As an example, the power generation equipment may specifically be a solar panel, a hydropower generation equipment, a thermal power generation equipment, a wind power generation equipment, etc. The specific type of the power generation equipment is not limited in this application.

[0184] According to some embodiments of the present application, as shown in Figure 1, the present application also provides an electrical device, which includes the battery device 1100 in the above embodiment, the energy storage device in the above embodiment, or the energy storage system in the above embodiment, and the battery device 1100 is used to store or provide electrical energy.

[0185] The technical solutions described in the embodiments of the present application are applicable to various electrical devices that use battery cells, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles 1000, ships and spacecraft, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0186] For the convenience of description, this embodiment is described by taking a vehicle 1000 as an example of an electrical device in an embodiment of the present application.

[0187] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 1100 is provided inside the vehicle 1000, and the battery device 1100 can be provided at the bottom, head or tail of the vehicle 1000. The battery device 1100 can be used to power the vehicle 1000. For example, the battery device 1100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 1200 and a motor 1300. The controller 1200 is used to control the battery device 1100 to power the motor 1300, for example, for starting, navigating and driving the vehicle 1000.

[0188] In some embodiments of the present application, the battery device 1100 can not only serve as the operating power source of the vehicle 1000, but also serve as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0189] The example of the electric device in this application is based on the example of the battery device 1100 described above. The example of the electric device includes all the technical effects of the example of the battery device 1100 described above, which will not be repeated here.

[0190] According to some embodiments of the present application, the present application further provides a charging network, which includes charging piles and the energy storage device in the above embodiment or the energy storage system in the above embodiment, and the energy storage device is used to provide electrical energy for the charging piles.

[0191] For example, a charging network includes a charging station and an energy storage device. The charging station is electrically connected to the energy storage device, which is used to provide electrical energy to the charging station. The charging station and the battery device 1100 in the energy storage device are electrically connected via a cable, and the battery device 1100 can provide its stored electrical energy to the charging station. The charging station has one or more connectors, which are used to connect to an electrical device (such as a vehicle 1000) to replenish energy to the electrical device.

[0192] The energy storage device can be located inside the charging pile (such as an integrated storage and charging machine) or outside the charging pile.

[0193] The above are merely preferred embodiments of the present application and only specifically describe the technical principles of the present application. These descriptions are intended only to explain the principles of the present application and should not be construed in any way as limiting the scope of protection of the present application. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application, as well as other specific implementations of the present application that can be conceived by those skilled in the art without inventive effort, shall be included within the scope of protection of the present application.

Claims

1. An electric control device (1120), characterized in that: include: A battery management circuit board (1121) having a first connection terminal (1122), wherein the first connection terminal (1122) is electrically connected to an internal circuit of the battery management circuit board (1121); An electrical connection assembly (1123) comprises a carrier (11231) and a conductive component (11232), wherein the conductive component (11232) is connected to the carrier (11231), wherein the conductive component (11232) comprises a conductive component (11232), a second connecting terminal (11233) and a third connecting terminal (11240), wherein the second connecting terminal (11233) is connected to the third connecting terminal (11240) via the conductive component (11232), wherein the second connecting terminal (11233) is connected to the first connecting terminal (1122), and the third connecting terminal (11240) is used to connect to a bar or a relay (1124) inside the electric control device.

2. The electronic control device (1120) according to claim 1, characterized in that: There are a plurality of third connecting terminals (11240), and each of the third connecting terminals (11240) is extended from a position connected to the conductive component (11232) toward a direction away from the conductive component (11232).

3. The electronic control device (1120) according to claim 1, characterized in that: The second connecting terminal (11233) is plug-connected with the first connecting terminal (1122).

4. The electronic control device (1120) according to claim 3, characterized in that: An elastic limiting portion (11236) is formed on the first connecting terminal (1122) or the second connecting terminal (11233) to enable an elastic limiting connection between the first connecting terminal (1122) and the second connecting terminal (11233).

5. The electronic control device (1120) according to claim 4, characterized in that: The second connecting terminal (11233) includes a plurality of plug pins (11234), each of the plug pins (11234) includes a base (11235), an elastic limiting portion (11236) connected to the base (11235), and a pin portion (11237) connected to the elastic limiting portion (11236), and the elastic limiting portion (11236) is capable of elastic deformation; a plurality of guide holes (11221) are formed on the first connecting terminal (1122), each of the elastic limiting portions (11236) is correspondingly limited in each of the guide holes (11221), and the pin portion (11237) is electrically connected to the hole wall of the guide hole (11221).

6. The electronic control device (1120) according to claim 5, characterized in that: The elastic limiting portion (11236) comprises two elastic arms (11236a) connected between the base (11235) and the pin portion (11237), and the two elastic arms (11236a) are arranged facing each other and form an elastic contraction space (11236b).

7. The electronic control device (1120) according to claim 6, characterized in that: Along a first direction (X), the conductive component (11232) is arranged opposite to the battery management circuit board (1121), the pin portion (11237) is extended along the first direction (X), and the central axis of the conductive hole (11221) is parallel to the first direction (X).

8. The electronic control device (1120) according to any one of claims 1 to 7, characterized in that: The conductive component (11232) and the supporting component (11231) are injection molded into an integral structure.

9. The electronic control device (1120) according to any one of claims 1 to 7, characterized in that: The conductive component (11232) and the third connecting terminal (11240) are welded into an integrated structure; or The conductive component (11232) and the third connecting terminal (11240) are connected via a fastening assembly.

10. The electronic control device (1120) according to any one of claims 1 to 7, characterized in that: The carrier (11231) has a receiving groove (11231a), the conductive component (11232) is received in the receiving groove (11231a), and one end of each of the third connecting terminals (11240) is connected to the conductive component (11232), and the other end protrudes from the outside of the notch of the receiving groove (11231a).

11. The electronic control device (1120) according to claim 10, characterized in that: The supporting member (11231) includes a bottom plate (11231b) and a vertical plate (11231c) circumferentially connected to the bottom plate (11231b), and the bottom plate (11231b) and the vertical plate (11231c) are jointly arranged to form the receiving groove (11231a); the conductive component (11232) is attached to the bottom plate (11231b).

12. The electronic control device (1120) according to claim 10, characterized in that: The battery management circuit board (1121) is arranged opposite to the conductive component (11232); the battery management circuit board (1121) is located on one side of the notch of the accommodating groove (11231a); and the battery management circuit board (1121) has a through hole (11211) for avoiding the third connection terminal (11240).

13. The electronic control device (1120) according to any one of claims 1 to 7, characterized in that: The electronic control device (1120) further includes a first positioning structure (11238) connected to the battery management circuit board (1121) and a second positioning structure (11239) connected to the carrier (11231), wherein the first positioning structure (11238) and the second positioning structure (11239) are plug-fitted into each other.

14. The electronic control device (1120) according to any one of claims 1 to 7, characterized in that: The conductive component (11232) is extended and arranged along the second direction (Y), the second connecting terminal (11233) is located at an extended end of the conductive component (11232), and the plurality of third connecting terminals (11240) are arranged at intervals in the second direction (Y).

15. The electronic control device (1120) according to any one of claims 1 to 7, characterized in that: The electric control device (1120) comprises a locking component (1126), and the locking component (1126) is connected between the conductive terminal (11241) and the third connecting terminal (11240).

16. The electronic control device (1120) according to any one of claims 1 to 7, characterized in that: The conductive terminal (11241) is a high voltage terminal.

17. A battery device (1100), characterized in that: It comprises a battery cell assembly (1110) and an electronic control device (1120) as claimed in any one of claims 1 to 16, wherein the battery cell assembly (1110) and the electronic control device (1120) are electrically connected.

18. An energy storage device, characterized in that: The invention comprises a plurality of battery devices (1100) as claimed in claim 17, wherein the battery devices (1100) are used to store or provide electrical energy.

19. An energy storage system, comprising a power conversion device and the energy storage device according to claim 18, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.

20. An electrical device, comprising the electric control device (1120) according to any one of claims 1 to 16, the battery device (1100) according to claim 17, the energy storage device according to claim 18 or the energy storage system according to claim 19, wherein the battery device (1100) is used to store or provide electrical energy.

21. A charging network, comprising a charging pile and the energy storage device according to claim 18 or the energy storage system according to claim 19, wherein the energy storage device is used to provide electrical energy for the charging pile.

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