Relay, electric control device, battery device, and electric device

Abstract

The present application relates to the technical field of battery production, and provides a relay, an electric control device, a battery device, and an electric device. The relay comprises a ceramic body, a main static contact, an auxiliary static contact, a first conductive component, and a first connection terminal; the main static contact and the auxiliary static contact are both arranged on the ceramic body; the first conductive component is electrically connected between the auxiliary static contact and the first connection terminal; the first connection terminal comprises a first connection surface; and an external circuit is connected to the first connection surface so as to access an auxiliary loop of the relay. The present application aims to improve the reliability of the connection between a relay and an external circuit.

Description

Relay, electric control device, battery device and electric device

[0001] The present application claims priority to the Chinese Patent Application No. 2024108444409, filed on June 27, 2024, and entitled "Power distribution box, battery and electric device", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of battery production, in particular to a relay, an electric control device, a battery device and an electric device. BACKGROUND

[0003] The battery device is the energy source of the entire circuit system, providing input power for the power distribution box. For example, in a car, the battery device serves as a power source, outputting direct current to the power distribution box of the car. The power distribution box is responsible for distributing the power of the battery device to various car electrical equipment, such as car lights, horns, car computers, etc.

[0004] The power distribution box is one of the installation places of the relay, and the relay plays a key role in controlling the on-off of the circuit in the power distribution box. The power distribution box leads the power of the battery to the coil and the contact of the relay, and controls the conduction and cut-off of different branch circuits through the relay. The auxiliary contact is other contact in addition to the main contact in the relay, which is mainly used to expand the control function of the relay and provide additional on-off nodes for the control circuit.

[0005] The auxiliary contact is usually composed of an auxiliary moving contact and an auxiliary static contact, and the auxiliary static contact is usually in a columnar or needle-like structure. When the auxiliary static contact in this structure is connected with a circuit board or the like, it can only be connected by wires and welded in a point contact manner, resulting in low connection reliability. SUMMARY

[0006] The purpose of the embodiments of the present application is to provide a relay, an electric control device, a battery device and an electric device, aiming to solve the technical problem of low connection reliability of the auxiliary static contact in the relay. TECHNICAL SOLUTION

[0007] The technical solution adopted by the embodiments of the present application is:

[0008] In a first aspect, the present application provides a relay, comprising a ceramic body, a main static contact, an auxiliary static contact, a first conductive component and a first connection terminal, the main static contact and the auxiliary static contact are arranged on the ceramic body, the first conductive component is electrically connected between the auxiliary static contact and the first connection terminal, and the first connection terminal comprises a first connection surface, and an external circuit is connected to the first connection surface to access the auxiliary loop of the relay.

[0009] In the embodiment, the auxiliary static contact is connected through the first conductive part, so as to be equivalent to moving the auxiliary static contact to the first connecting terminal, the first connecting terminal is provided with a first connecting surface, and the first connecting surface is connected with the external circuit, so that the connecting area between the first connecting terminal and the external circuit can be increased, and the surface contact connection mode is formed, so as to improve the reliability of the connection between the relay and the external circuit.

[0010] In one of the embodiments, the first connecting surface is a plane.

[0011] In the embodiment, the first connecting surface is a plane, so that the lamination is more convenient during the assembly, the lamination tightness is increased, the gap at the connecting position is reduced, and the connection reliability is improved.

[0012] In one of the embodiments, the ceramic body is provided with a first end surface and a first side surface, the first end surface and the first side surface are arranged perpendicularly, the main static contact is located on the first end surface, and the first connecting surface is located on the first side surface.

[0013] In the embodiment, the first connecting terminal is arranged away from the main static contact, and the two are located on different surfaces of the relay, so as to make the first connecting terminal be located on a larger mounting area and reduce the interference between the first connecting terminal and the main static contact.

[0014] In one of the embodiments, the main static contact is provided with a second connecting surface, the external circuit is connected with the second connecting surface to access the main circuit of the relay, and the first connecting surface and the second connecting surface are arranged perpendicularly.

[0015] In the embodiment, the first connecting surface and the second connecting surface are arranged perpendicularly, so that the lead wire is more convenient when the relay is assembled with the external shell, and the interference is reduced.

[0016] In one of the embodiments, the relay further includes a coil and a coil holder, the coil holder is provided with a winding part, the coil is wound on the winding part, the ceramic body is provided with a first end surface and a second end surface, the main static contact is located on the first end surface, the coil holder is at least partially located on the second end surface, and the first connecting terminal is arranged on the coil holder.

[0017] In the embodiment, the first connecting terminal is arranged on the coil holder, so as to move the conduction position of the auxiliary static contact to the coil holder, so as to improve the stability of the connection between the first connecting terminal and the external circuit, increase the space of the mounting position, facilitate the manufacturing, and improve the compactness of the whole structure.

[0018] In one of the embodiments, the coil holder further comprises a first end wall and a first supporting part, the first end wall is connected to one end of the winding part along the first direction, the first supporting part is connected to the first end wall and protrudes from the edge of the first end wall, the first connecting terminal is arranged on the first supporting part, and the first direction is the axial direction of the winding part.

[0019] In the embodiment, the first supporting part is additionally arranged to support the first connecting terminal, so as to connect the first connecting terminal to the coil holder, thereby improving the stability of the installation of the first connecting terminal and the compactness of the overall structure.

[0020] In one of the embodiments, the first supporting part is connected to the edge of the first end wall and extends along the first direction away from the side of the coil.

[0021] In the embodiment, the first supporting part extends outwardly from the edge of the first end wall along the first direction, so as to facilitate the assembly of the first connecting terminal and enable the first connecting terminal to be arranged away from the coil, thereby ensuring the reliability of the electrical connection.

[0022] In one of the embodiments, the first conductive part comprises a first connecting segment and a second connecting segment, the first connecting segment is arranged on the first end surface of the ceramic body and electrically connected to the auxiliary fixed contact, and the second connecting segment is arranged on the first side surface of the ceramic body and electrically connected to the first connecting segment and the first connecting terminal.

[0023] In the embodiment, the first connecting segment and the second connecting segment are combined in a manner that enables the first conductive part to be arranged on the surface of the ceramic body, thereby making the structure more compact between the ceramic body and the first conductive part.

[0024] In one of the embodiments, the first conductive part comprises an insulating body and a conductive body, and the conductive body is at least partially embedded in the insulating body.

[0025] In the embodiment, the insulating body protects the conductive body and facilitates the assembly of the first conductive part on the surface of the ceramic body.

[0026] In one of the embodiments, the first conductive part is a PCB board.

[0027] In the embodiment, the structure of the PCB board is adopted, which facilitates the manufacturing and installation and is conducive to improving the convenience of assembly and the efficiency of preparation.

[0028] In one of the embodiments, the first connecting terminal comprises a first connecting part, a first intermediate part and a first adapter part, the first connecting part and the first adapter part are both connected to the first intermediate part, the first intermediate part is connected to the first supporting part, and the first adapter part is electrically connected to the first conductive part.

[0029] In the embodiment, the first connecting terminal is formed of three different parts, i.e., the first connecting part, the first intermediate part and the first adapter part, so that the first connecting terminal can be firmly connected to the first supporting part, the structure design is more reasonable, and the connection reliability is improved.

[0030] In one of the embodiments, the first connecting terminal is further provided with a threaded structure, which is arranged on the first connecting surface in a direction perpendicular to the first connecting surface.

[0031] In the embodiment, the threaded structure is arranged on the first connecting terminal, so that the first connecting terminal can be fixed to the structural component in the external circuit by screw connection, and the connection reliability is improved.

[0032] In one of the embodiments, the threaded structure is a nut, and the first connecting terminal is further provided with a first connecting hole penetrating the first connecting surface, the nut is arranged corresponding to the first connecting hole and located on the side of the first connecting terminal away from the first connecting surface.

[0033] In the embodiment, the nut is arranged on the first connecting terminal, so that the convenience of screw connection is improved.

[0034] In one of the embodiments, the relay further comprises a coil and a coil holder, the coil is connected to the coil holder, the coil holder is provided with the first supporting part, and the first connecting terminal is arranged on the first supporting part; the first supporting part is provided with an assembly groove, a through hole corresponding to the first connecting hole is formed on the first supporting part, and the nut is arranged in the assembly groove.

[0035] In the embodiment, the assembly groove is arranged on the first supporting part, so that the nut is wrapped and hidden, the risk of contact between the nut and the coil or other conductive components is reduced, and the isolation effect is achieved to reduce the risk of short circuit in electrical connection.

[0036] In one of the embodiments, the relay further comprises a yoke provided with a receiving groove, the coil holder is at least partially installed in the receiving groove of the yoke, the coil holder comprises a winding part for winding the coil, the coil holder is further provided with a first end wall, the first end wall is located on one side of the winding part along a first direction and connected to one end of the winding part along the first direction, the winding part and the first end wall are located in the receiving groove, the first direction is the axial direction of the winding part, the first connecting terminal is embedded in the first end wall, and the first connecting surface is located outside the receiving groove.

[0037] In the embodiment, the yoke bears and accommodates the coil holder and the coil thereon, and the first connecting surface is arranged outside the receiving groove of the yoke, so that the first connecting surface is exposed to facilitate assembly and improve the convenience of connection with the structural component in the external circuit.

[0038] In one of the embodiments, the first connecting face is provided with a first connecting hole, the first connecting face is connected with the external circuit through the first connecting hole, and the extension line of the central axis of the first connecting hole does not interfere with the yoke.

[0039] In the embodiment, the position of the first connecting hole is arranged to avoid the yoke, thereby facilitating to improve the electrical connection reliability of the main stationary contact, the first connecting terminal and the like during connection, reasonably utilizing the space, and reducing the risk of short circuit problem and interference problem during electrical connection.

[0040] In one of the embodiments, the relay further includes a coil and a second connecting terminal electrically connected with the coil, and the second connecting terminal has a third connecting face.

[0041] In the embodiment, the second connecting terminal is additionally arranged, the coil can be connected with the external power supply, thereby realizing the power supply of the coil, the surface connection mode of the third connecting face is adopted, the contact area between the second connecting terminal and the power supply circuit is improved, and the connection reliability is improved.

[0042] In one of the embodiments, the coil holder further includes a second end wall and a second supporting part, the second end wall is connected to the other end of the winding part in the first direction to be arranged opposite to the first end wall, the second supporting part is connected to the second end wall and protrudes from the edge of the second end wall, the second connecting terminal is arranged on the second supporting part, and the first direction is the axial direction of the winding part.

[0043] In the embodiment, the second supporting part can support and support the second connecting terminal, improve the stability of the installation of the second connecting terminal, the second supporting part extends outwardly from the edge of the second end wall in the first direction, thereby facilitating the assembly of the second connecting terminal, and the second connecting terminal is arranged away from the coil, thereby guaranteeing the reliability of the electrical connection.

[0044] In a second aspect, the application provides an electric control device, the electric control device including the relay of any one of the above, and the electric control device further includes:

[0045] A second conductive part has a fourth connecting face, and the fourth connecting face is connected to the first connecting face to realize the electrical connection between the first connecting terminal and the second conductive part.

[0046] In the embodiment, the auxiliary stationary contact is connected through the first conductive part, thereby equivalent to transferring and shifting the auxiliary stationary contact to the first connecting terminal, the first connecting terminal can be connected with the second conductive part, and the wire harness is replaced by the second conductive part, thereby facilitating to improve the regularity and integration of the whole device.

[0047] In one of the embodiments, the first connecting face and the fourth connecting face are both planes.

[0048] In the embodiment, a larger contact area can be provided between the first connecting terminal and the second conductive component, so that a larger electrical contact area can be obtained when the corresponding electrical connection structure is in contact with each other, thereby improving the stability and reliability of the electrical connection.

[0049] In one of the embodiments, the first connecting surface and the fourth connecting surface are bolted or welded.

[0050] In the embodiment, the welding method can improve the firmness of the connection between the first connecting terminal and the second conductive component, and the bolted method can make the installation and disassembly of the first connecting terminal and the second conductive component more flexible and convenient.

[0051] In one of the embodiments, the electrical control device further comprises a first locking assembly, which is connected to the first connecting terminal and the second conductive component at the positions of the first connecting surface and the fourth connecting surface, respectively.

[0052] In the embodiment, the first locking assembly is used for connection and fixation, thereby realizing the detachable connection between the second conductive component and the first connecting terminal, and making the installation and disassembly of the first connecting terminal and the second conductive component more flexible and convenient.

[0053] In one of the embodiments, the electrical control device further comprises a bearing seat, which is connected to the second conductive component.

[0054] In the embodiment, the bearing seat supports the second conductive component, thereby forming an integrated structure with the second conductive component, making the structure more compact, improving the structural stability of the second conductive component, and improving the convenience of connection with external circuits.

[0055] In one of the embodiments, the ceramic body has a first end surface and a first side surface, the main static contact is located on the first end surface, and the first connecting terminal and the second conductive component are both located in the direction of the first side surface.

[0056] In the embodiment, the first connecting terminal and the second conductive component are both located on the first side surface, thereby facilitating the simplification of the structure of the second conductive component, improving the compactness of the overall structure connection, and facilitating the assembly of the second conductive component and the bearing seat, and improving the space utilization.

[0057] In one of the embodiments, the electric control device includes the above-mentioned relay with the second connecting terminal, and further includes a second conductive component, a first locking assembly and a second locking assembly. The second conductive component has a fourth connecting surface and a fifth connecting surface respectively. The fourth connecting surface is connected to the first connecting surface to realize the electrical connection between the first connecting terminal and the second conductive component. The first locking assembly is connected to the first connecting terminal and the second conductive component at the positions of the first connecting surface and the fourth connecting surface respectively. The fifth connecting surface is connected to the third connecting surface to realize the electrical connection between the second connecting terminal and the second conductive component. The second locking assembly is connected to the second connecting terminal and the second conductive component at the positions of the fifth connecting surface and the fourth connecting surface respectively.

[0058] In the embodiment, the second connecting terminal can be locked and fixed with the second conductive component through the second locking assembly, which is conducive to improving the connection reliability between the second conductive component and the second connecting terminal. The second conductive component replaces the wire harness, which is conducive to improving the regularity and integration of the entire device. In addition, the second conductive component is an integrated component that can integrate the first conductive input part, the first conductive output part, the second conductive input part and the second conductive output part, which is conducive to simplifying the structure, improving the integration of the component, saving space and improving the space utilization.

[0059] In a third aspect, the application provides a battery device, which includes a battery monomer assembly and any one of the above-mentioned relays or the above-mentioned electric control device. The battery monomer assembly is electrically connected to the relay or the electric control device.

[0060] In a fourth aspect, the application provides a power consumption device, which includes any one of the above-mentioned electric control devices or any one of the above-mentioned battery devices. The battery device is used for storing or providing electric energy.

[0061] The above description is only a summary of the technical solutions of the application. In order to more clearly understand the technical means of the application, the specific embodiments of the application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments of the application or the prior art description. Obviously, the following described drawings are only some embodiments of the application. For those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0063] Fig. 1 is a structural schematic view of a vehicle provided by some embodiments of the application;

[0064] Fig. 2 is an exploded structural schematic view of a battery device according to some embodiments of the present application;

[0065] Fig. 3 is a structural schematic view of an electric control device according to some embodiments of the present application;

[0066] Fig. 4 is a structural schematic view of a relay according to some embodiments of the present application;

[0067] Fig. 5 is a top view of Fig. 4;

[0068] Fig. 6 is an axonometric view of Fig. 4;

[0069] Fig. 7 is a structural schematic view of a connection between a coil holder and a first connection terminal and a second connection terminal in a relay according to some embodiments of the present application;

[0070] Fig. 8 is a structural schematic view of a first connection terminal in a relay according to some embodiments of the present application;

[0071] Fig. 9 is a structural schematic view of a second connection terminal in a relay according to some embodiments of the present application

[0072] Fig. 10 is an exploded structural schematic view of an electric control device according to some embodiments of the present application;

[0073] Fig. 11 is an exploded structural schematic view of an electric control device according to some embodiments of the present application;

[0074] Fig. 12 is a structural schematic view of a second conductive member in an electric control device according to some embodiments of the present application;

[0075] Explanation of reference signs: 1000, vehicle; 1100, battery device; 1110, battery cell assembly; 1120, electric control device; 1121, relay; 11211, yoke; 112111, winding part; 112112, first supporting part; 112113, accommodating groove; 112114, second supporting part; 112115, assembling groove; 112116, coil holder; 112117, first end wall; 112118, second end wall; 11212, coil; 11213, auxiliary static contact; 11214, first conductive part; 112141, first connecting section; 112142, second connecting section; 11215, first connecting terminal; 112151, first connecting part; 112152, first intermediate part; 112153, first adapting part; 112154, first connecting hole; 112155, first connecting surface; 112156, threaded structure; 11216, second connecting terminal; 112161, second connecting part; 112162, second intermediate part; 112163, second adapting part; 112164, second connecting hole; 112165, third connecting surface; 11217, main static contact; 112171, second connecting surface; 11218, ceramic body; 1122, second conductive part; 11221, first conductive input part; 112211, first conductive connecting hole; 112212, fourth connecting surface; 11222, first conductive output part; 11223, second conductive input part; 112231, second conductive connecting hole; 112232, fifth connecting surface; 11224, second conductive output part; 11225, integrated body; 11226, first input conductive body; 11227, first output conductive body; 11228, second input conductive body; 11229, second output conductive body; 1123, first locking assembly; 11231, first locking column; 11232, first lock nut; 1124, bearing seat; 1125, second locking assembly; 11251, second locking column; 11252, second lock nut; 1126, plug-in port structure; 1127, battery management master control board; 1128, first end surface; 11281, second end surface; 1129, first side surface; 1130, box body; 1131, first part; 1132, second part; 1133, accommodating space; 1200, controller; 1300, motor; X, first direction. DETAILED DESCRIPTION

[0076] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and therefore only serve as embodiments, but cannot limit the protection scope of the present application.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise noted, the terms "including" and "comprising" are open-ended and do not exclude the presence of unrecited elements or limitations.

[0078] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0079] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0080] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0081] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0082] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as limiting the embodiments of the present application. The orientation or position of the device or element indicated, and therefore cannot be understood as limiting the embodiments of the present application.

[0083] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mount", "connected", "connection", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0084] The battery apparatus can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, in parallel, or in a mixed connection through a busbar component.

[0085] The battery apparatus can be a battery pack, which generally includes a box body and one or more battery cell assemblies accommodated in the box body.

[0086] The battery apparatus further includes a high-voltage distribution unit (also called BDU, Battery Distribution Unit) and a battery management system (BMS, Battery Management System). The high-voltage distribution unit can be commonly called a distribution box or a high-voltage distribution box. The distribution box is a key component in the power system. In the battery apparatus, the distribution box can distribute the electric energy in the battery cell assembly to each high-voltage system of the external power consuming device. The high-voltage distribution unit can control the charging and discharging circuit of the battery apparatus to proceed smoothly. The battery management system is mainly responsible for intelligent management and maintenance of the battery system, monitors the battery state, and ensures the safe operation of the battery. The electric power of the battery cell assembly is transmitted to the high-voltage distribution unit, and then transmitted to the power consuming device. 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-off of the circuit in the high-voltage distribution unit, thereby controlling the electric power transmission of the battery cell assembly to the power consuming device. The distribution box is usually integrated with the battery management system (BMS). The BMS optimizes the charging and discharging process of the battery by collecting voltage data, prolongs the service life of the battery, and improves the efficiency of the overall system.

[0087] In the battery device, the high-voltage power distribution device is mainly to control the charging and discharging circuit of the battery device to run smoothly, which is responsible for controlling the power-on and power-off process, pre-charging process and charging process of the high-voltage power circuit, wherein the high-voltage power distribution device includes various relays and electric connection components for realizing circuit connection, as well as sampling components for collecting circuit signals and connectors for transmitting electric signals; for example, the relays include (high-voltage) relays, shunt relays, pre-charging relays, etc., or the relays can also include high-voltage relays, intermediate relays, positive electrode relays, pre-charging relays, etc. The electric connection components include copper bars, aluminum bars, wire harnesses, etc.; the sampling components include low-voltage sampling wires and sampling terminals; and the connectors include low-voltage connectors and high-voltage connectors.

[0088] The main functions of the battery management system include data acquisition, state detection, safety protection, charging control, energy management, and balancing management, etc., which include a master control unit, i.e., a battery management unit (BMU), the BMU includes a data acquisition circuit, a sensor, and a microcontroller (MCU) for processing the collected data and communicating with other systems of the vehicle; 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 these information to the BMU, the CSC mainly includes sensors for detecting battery cells and data acquisition circuits.

[0089] The battery device is the energy source of the entire circuit system and provides input electric energy for the power distribution box. For example, in an automobile, the battery device serves as a power supply and outputs direct current to the power distribution box of the automobile. The power distribution box is responsible for distributing the electric energy of the battery device to various automobile electrical equipment, such as vehicle lamps, horns, and vehicle computers, etc.

[0090] The power distribution box is one of the installation places of the relays, and the relays play a key role in controlling the on-off of the circuit in the power distribution box. The power distribution box can be understood as an electric control device, which leads the electric energy of the battery to the coil and contact of the relay, and controls the conduction and cut-off of different branch circuits through the relay. The auxiliary contact is other contact in addition to the main contact in the relay, which is mainly used to expand the control function of the relay and provide additional on-off nodes for the control circuit.

[0091] The auxiliary contact is usually composed of an auxiliary moving contact (also known as an auxiliary moving contact) and an auxiliary static contact. Generally, the auxiliary static contact is integrated on a ceramic body, and the auxiliary static contact is exposed to a small connection part outside the ceramic body. For example, the auxiliary static contact is usually in a columnar or needle-like structure, and when the auxiliary static contact in this structure is connected with a circuit board or the like, it can only be connected by wires and welded in a point contact manner, resulting in low connection reliability.

[0092] In view of this, the embodiment of the present application provides a relay. By adding a first conductive component and a first connecting terminal, the original auxiliary static contact is electrically connected to the first connecting terminal through the first conductive component. Since the first connecting terminal has a first connecting surface, the first connecting terminal can be connected to an external circuit through surface contact. The first connecting surface can increase the connection area between the first connecting terminal and the components in the external circuit. The first connecting surface is also more convenient for improving other structures or connecting other structures, thereby increasing the connection area between the first connecting terminal and the external circuit and further increasing the connection reliability.

[0093] Specifically, referring to FIGS. 4-7, the embodiment of the present application provides a relay 1121. The relay 1121 includes a ceramic body 11218, a main static contact 11217, an auxiliary static contact 11213, a first conductive component 11214, and a first connecting terminal 11215. The main static contact 11217 and the auxiliary static contact 11213 are both arranged on the ceramic body 11218. The first conductive component 11214 is electrically connected between the auxiliary static contact 11213 and the first connecting terminal 11215. The first connecting terminal 11215 includes a first connecting surface 112155. An external circuit is connected to the first connecting surface 112155 to access the auxiliary circuit of the relay 1121.

[0094] The auxiliary circuit of the relay 1121 is understood as a circuit or link or circuit connected to the auxiliary contact (including the auxiliary static contact 11213 and the auxiliary moving contact). The circuit is used to transmit a control signal or a low-voltage signal. It can be understood that the circuit connected to the main contact can be referred to as a main circuit, and the main circuit is used to transmit a high-voltage signal.

[0095] The relay 1121 mainly includes an electromagnetic coil, a core, an armature, a contact, and a reset spring. The contact includes a main contact and an auxiliary contact. The electromagnetic coil is also referred to as a coil 11212. The coil 11212 is used to generate a magnetic force by being energized, and the magnetic force is used to control the action of the main contact and the auxiliary contact. Generally, the relay 1121 has a main contact and an auxiliary contact. Therefore, the coil 11212 in the embodiment can refer to an electromagnetic coil that can control the action of the main contact and the auxiliary contact. However, for some relays 1121, there can be no main contact. For example, for an intermediate relay 1121, the intermediate relay 1121 is essentially an input voltage type relay 1121. All of the intermediate relay 1121 are auxiliary contacts, and there is no main contact. The intermediate relay 1121 is mainly used to expand the number of element contacts, convert normally open and normally closed points, and isolate and transition. Therefore, for the intermediate relay 1121, the coil 11212 can refer to a coil 11212 mainly used to control the action of the auxiliary contact.

[0096] The working principle of the relay 1121 is as follows: the energizing attraction process includes that when a certain voltage is applied to the coil 11212 of the relay 1121, an electric current flows in the coil 11212, thereby generating a magnetic field, under the action of the magnetic field, the armature is attracted by the iron core to overcome the pulling force of the return spring, and drives the contact to act, so that the normally open contact is closed and the normally closed contact is opened, thereby turning on the working circuit. The de-energizing release process includes that when the coil 11212 is de-energized, the electric current disappears, and the magnetic field also disappears, the armature returns to the original position under the action of the return spring, and drives the contact to switch reversely, that is, the normally open contact is opened and the normally closed contact is closed, thereby turning off the working circuit. By controlling the on-off of the coil 11212, the on-off state of the contact can be controlled, small current can be controlled to large current, low voltage can be controlled to high voltage, and functions such as signal conversion and circuit protection can be realized.

[0097] It should be noted that for the main contact, the main contact includes a movable moving contact and a non-movable static contact, which can be referred to as a main static contact 11217, and the moving contact is movable and can be referred to as a main moving contact. The static contact is fixed on the ceramic body 11218 of the relay 1121, and the two together constitute a contact system of the relay 1121. When the relay 1121 works, the moving contact contacts or separates from the static contact under the action of the armature, thereby realizing the conduction and cut-off of the circuit. In the initial state, the static contact separated from the moving contact is a normally open contact, and the static contact contacted by the moving contact is a normally closed contact. When the coil 11212 of the relay 1121 is energized, the moving contact acts, the normally open contact is closed, and the normally closed contact is opened; after the coil 11212 is de-energized, the moving contact returns, the normally open contact restores to be opened, and the normally closed contact restores to be closed.

[0098] In combination with the drawings, for the auxiliary contact, the auxiliary contact also includes an auxiliary moving contact and an auxiliary static contact 11213, the auxiliary moving contact moves with the armature, cooperates with the corresponding auxiliary static contact 11213, and changes the on-off state of the circuit. The auxiliary contact is mainly used to expand the control function of the relay 1121 and provide additional on-off nodes for the control circuit. The auxiliary contact is divided into normally open type and normally closed type. The normally open auxiliary contact is in an open state when the relay 1121 does not act, and is closed after acting; the normally closed auxiliary contact is closed initially, and is opened after acting. The auxiliary contact can be used to realize various logic control functions such as self-locking, interlocking, signal indication and fault alarm, and meet the control requirements of complex circuits.

[0099] The moving contact and the static contact of the main circuit are used to control the on-off of the main load, and the auxiliary moving contact and the auxiliary static contact 11213 are used to provide additional control signals or realize interlocking functions such as signal feedback, control of other related circuits and the like.

[0100] The auxiliary contact generally includes an auxiliary moving contact and an auxiliary stationary contact 11213. The auxiliary moving contact is also called an auxiliary moving reed because it is usually made of a reed. The auxiliary moving reed is generally made of a metal sheet with elasticity, such as a copper alloy, to realize the opening and closing actions of the contact. The relay 1121 can include a coil holder 112116, the coil 11212 can be connected to the coil holder 112116, and the auxiliary stationary contact 11213 is fixed to the ceramic body 11218 of the relay 1121 to provide a contact for the moving reed.

[0101] In the battery management system of the battery device 1100, the auxiliary stationary contact 11213 needs to be electrically connected to the battery management main control board 1127. The battery management main control board 1127 is the main component in the battery management system. In this example, the battery management main control board 1127 can be a circuit board of the BMU or a circuit board obtained by integrating the circuit of the BMU and the circuit of the CSC. The battery management system can have a housing, and the battery management main control board 1127 can be connected to the housing. Alternatively, the battery management system does not have a housing, and the battery management main control board 1127 can be directly connected to the housing of the relay 1121, the ceramic body 11218, or the like.

[0102] In combination with FIGS. 4, 6, and 7, the first connection terminal 11215 is provided on the relay 1121. For example, the first connection terminal 11215 can be connected to the coil holder 112116 of the relay 1121 or the ceramic body 11218. The first connection terminal 11215 is an electrical connection component. For example, the first connection terminal 11215 can be a metal conductive structure with rigidity, which can be made of copper, nickel, or aluminum, such as a reed structure or a copper bar structure. The first connection terminal 11215 can have a sheet structure, a frame structure, a hollow shell structure, or a solid structure.

[0103] The ceramic body 11218 can serve as a support component. The ceramic body 11218 plays a key role in supporting and fixing inside the relay 1121. The ceramic body 11218 provides a stable mounting basis for internal components such as contacts. Part of the ceramic body 11218 can also support the coil 11212 and the core. For example, the coil 11212 is usually wound around the core, and the core and the coil 11212 are installed at a specific position inside the ceramic body 11218. The hard and stable structure of the ceramic body 11218 can ensure that these components maintain their relative positions unchanged during the operation of the relay 1121, even if they are subjected to external forces such as vibration and impact.

[0104] The first conductive component 11214 is also an electrically connecting component. The first conductive component 11214 can be made of a rigid metal conductive structure. The first conductive component 11214 can be made of copper, nickel or aluminum, etc. For example, the first conductive component 11214 can be a bar structure or a copper bar structure. Alternatively, the first conductive component 11214 can also be a circuit board on which exposed conductive connecting parts are arranged to respectively electrically connect and conduct between the auxiliary static contact 11213 and the first connecting terminal 11215.

[0105] It can be understood that the first conductive component 11214 is electrically connected between the auxiliary static contact 11213 and the first connecting terminal 11215 to connect and conduct between the auxiliary static contact 11213 and the first connecting terminal 11215. It can be seen that the first connecting terminal 11215 forms a terminal structure or a contact structure that can replace the auxiliary static contact 11213.

[0106] It should be noted that since the relay 1121 needs to be connected in an electric circuit, it can be known that two auxiliary static contacts 11213 are needed, one for current input and the other for current output. Correspondingly, two first connecting terminals 11215 are needed. The first conductive component 11214 has two independent conducting parts. One first connecting terminal 11215 is connected and conducted with one auxiliary static contact 11213 through the first conductive component 11214, and the other first connecting terminal 11215 is connected and conducted with the other auxiliary static contact 11213 through the first conductive component. The above two conducting parts are independent of each other to achieve the purpose of making the two first connecting terminals 11215 independent of each other.

[0107] The first connecting terminal 11215 has a first connecting surface 112155. The first connecting surface 112155 is a part of the first connecting terminal 11215 that is connected with an external circuit. It can be seen that the first connecting terminal 11215 and the external circuit form a large connecting area, which is beneficial to improve the reliability of the connection. In addition, the design of the surface structure is also convenient for improving the structure on the first connecting surface 112155 and assembling with other components. For example, the first connecting surface 112155 can be more convenient to open a hole structure, and the hole structure is convenient for connecting with a fastener. Compared with the needle-shaped or columnar auxiliary static contact 11213, the surface structure of the first connecting surface 112155 is more convenient to improve the reliability of the connection between the first connecting terminal 11215 and the external circuit and to realize the diversity of the connection mode.

[0108] In the embodiment, the auxiliary static contact 11213 is connected by the first conductive component 11214, so as to be equivalent to shifting the auxiliary static contact 11213 to the first connecting terminal 11215, the first connecting terminal 11215 is provided with the first connecting surface 112155, the first connecting surface 112155 is connected with the external circuit, so as to increase the connecting area between the first connecting terminal 11215 and the external circuit, and form a surface contact connecting mode, so as to facilitate improving the reliability of the connection between the relay 1121 and the external circuit.

[0109] Referring to FIGS. 4-7, in some embodiments, the first connecting surface 112155 is a plane.

[0110] The first connecting surface 112155 is a surface of the first connecting terminal 11215 in contact with or abutting against a component in the external circuit. The first connecting surface 112155 in a plane shape is more convenient for abutting and increasing the tightness of the abutting, so as to facilitate reducing the gap of the connecting position and improving the reliability of the connection. In addition, the first connecting surface 112155 in a plane shape is more convenient for processing and manufacturing, so as to reduce the cost and complexity of the processing and manufacturing, and the like.

[0111] Referring to FIGS. 5 and 6, in some embodiments, the ceramic body 11218 has a first end surface 1128 and a first side surface 1129, the first end surface 1128 and the first side surface 1129 are arranged perpendicularly, the main static contact 11217 is located on the first end surface 1128, and the first connecting surface 112155 is located on the first side surface 1129.

[0112] It should be noted that the first side surface 1129 and the first end surface 1128 can be real surfaces on the relay 1121, or the first side surface 1129 and the first end surface 1128 can be understood as virtual surfaces on the relay 1121 for defining directions. It can be understood that the main static contact 11217 is located on the first end surface 1128, and the auxiliary static contact 11213 can also be arranged on the first end surface 1128, and the first connecting terminal 11215 and the first connecting surface 112155 are arranged on the first side surface 1129. For example, referring to FIG. 4, the first end surface 1128 can be understood as an upper end surface in the drawing, and the first side surface 1129 can be understood as a front side surface in the drawing. The main static contact 11217 can be arranged on the upper end surface, and the first connecting surface 112155 is located on the front side surface, that is, the first connecting terminal 11215 is located on the front side of the relay 1121.

[0113] It is further pointed out that the first side surface 1129 and the first end surface 1128 are two different surfaces or surfaces in two different directions on the relay 1121. For example, the first side surface 1129 and the first end surface 1128 are two perpendicular surfaces or two perpendicular directions. The first side surface 1129 can also be referred to as a first side, and the first end surface 1128 can also be referred to as a second side. The first side and the second side are two different side directions of the relay 1121.

[0114] In the embodiment, the first connecting terminal 11215 is arranged away from the main static contact 11217, and the two are respectively located on different surfaces of the relay 1121, which is beneficial to make the first connecting terminal 11215 be on a larger mounting area and reduce the interference problem between the first connecting terminal 11215 and the main static contact 11217.

[0115] Referring to FIGS. 4-6, in some embodiments, the main static contact 11217 has a second connecting surface 112171, and an external circuit is connected with the second connecting surface 112171 to access the main circuit of the relay 1121. The first connecting surface 112155 is arranged perpendicularly to the second connecting surface 112171.

[0116] Specifically, among the electrical circuits, the circuit connected with the main contact can be referred to as a main circuit, and the main circuit is used to transmit a high-voltage signal. The second connecting surface 112171 is a contact surface or an assembly surface on the main static contact 11217 connected with the external main circuit. The second connecting surface 112171 can be a flat surface. As can be seen, the main static contact 11217 is connected with the external circuit in a surface contact manner, thereby increasing the connection area between the main static contact 11217 and the external circuit, and further improving the reliability of the connection.

[0117] The first connecting surface 112155 and the second connecting surface 112171 are arranged perpendicularly, for example, the first connecting surface 112155 is arranged on the first end surface 1128 and is parallel to the first end surface 1128, the second connecting surface 112171 is arranged on the first side surface 1129 and is parallel to the first side surface 1129, and the first end surface 1128 is perpendicular to the first side surface 1129, so that the first connecting surface 112155 is perpendicular to the second connecting surface 112171.

[0118] In the embodiment, the first connecting surface 112155 and the second connecting surface 112171 are arranged perpendicularly, so that the relay 1121 is more convenient for lead wire when assembled with the external shell, which is beneficial to reduce interference.

[0119] Referring to FIGS. 4-6, in some embodiments, the relay 1121 further comprises a coil 11212 and a coil holder 112116, the coil holder 112116 is provided with a winding portion 112111, the coil 11212 is wound on the winding portion 112111, the ceramic body 11218 has a first end face 1128 and a second end face 11281, the main static contact 11217 is located on the first end face 1128, the coil holder 112116 is at least partially located on the second end face 11281, and the first connecting terminal 11215 is arranged on the coil holder 112116.

[0120] Specifically, the first end face 1128 can be the first end face 1128 in the above-mentioned embodiments, the first end face 1128 and the second end face 11281 are two different end faces, for example, the first end face 1128 and the second end face 11281 are arranged away from each other, the main static contact 11217 is connected to the first end face 1128, and the coil holder 112116 is connected to the second end face 11281.

[0121] The coil holder 112116 is used to mount the coil 11212, and since the coil 11212 is wound, the coil holder 112116 is provided with the winding portion 112111, and the coil 11212 can be wound on the winding portion 112111.

[0122] The first connecting terminal 11215 is connected to the coil holder 112116, the first connecting terminal 11215 can be connected to the coil holder 112116 in a fixed or detachable manner, or the first connecting terminal 11215 and the coil holder 112116 are integrally formed.

[0123] In the present embodiment, the first connecting terminal 11215 is arranged on the coil holder 112116, which is equivalent to transferring the conduction position of the auxiliary static contact 11213 to the coil holder 112116, thereby facilitating the stability of the connection between the first connecting terminal 11215 and the external circuit, facilitating the increase of the space of the mounting position, facilitating the manufacture, and improving the compactness of the overall structure.

[0124] Referring to FIG. 7, in some embodiments, the coil holder 112116 further comprises a first end wall 112117 and a first supporting portion 112112, along a first direction X, the first end wall 112117 is connected to one end of the winding portion 112111 along the first direction X, the first supporting portion 112112 is connected to the first end wall 112117 and protrudes from the edge of the first end wall 112117, the first connecting terminal 11215 is arranged on the first supporting portion 112112, and the first direction X is the axial direction of the winding portion 112111.

[0125] Specifically, the coil holder 112116 can adopt a frame structure or a plate structure, etc., and a middle portion of the coil holder 112116 can be a winding portion 112111, which can adopt a columnar structure, so that the winding portion 112111 has an axial direction, i.e., the axial direction of the winding portion 112111 is parallel to the direction of the central axis of the winding portion 112111, and the central axis of the winding portion 112111 is the winding axis of the coil 11212 around the winding portion 112111.

[0126] The first direction X is the axial direction of the winding portion 112111, i.e., the extension direction of the winding axis is the first direction X, and the winding portion 112111 has a certain extension height in the first direction X, and the winding portion 112111 can be columnar. The first end wall 112117 is located at one end of the winding portion 112111, i.e., the first end wall 112117 is located at one end of the winding portion 112111 in the first direction X and connected to the end portion.

[0127] The coil holder 112116 further includes a first supporting portion 112112, which is a portion of the coil holder 112116 protruding from the edge of the first end wall 112117, and the first supporting portion 112112 is used to mount, support and fix the first connecting terminal 11215. The first connecting terminal 11215 can be connected to the first supporting portion 112112 by inlaying, injection molding, detachable connection, etc.

[0128] In this embodiment, the first supporting portion 112112 is added to support the first connecting terminal 11215, so that the first connecting terminal 11215 is connected to the coil holder 112116, which is conducive to improving the stability of the installation of the first connecting terminal 11215 and the compactness of the overall structure.

[0129] Referring to FIG. 7, in some embodiments, the first supporting portion 112112 is connected to the edge portion of the first end wall 112117 and extends away from the coil 11212 in the first direction X.

[0130] For example, the coil holder 112116 adopts a frame structure, the first end wall 112117 is located at one end of the coil holder 112116 in the first direction X, and the first supporting portion 112112 is connected to the edge portion of the first end wall 112117. It can be understood that the first supporting portion 112112 is located on the side of the coil holder 112116 deviating from the first direction X, and the first supporting portion 112112 can be a flange structure extending in the first direction X, so that the first supporting portion 112112 protrudes from the edge portion of the first end wall 112117.

[0131] The first supporting portion 112112 is outwardly extended at the edge of the first end wall 112117 in the first direction X away from the coil 11212, and the first supporting portion 112112 is extended in the first direction X and away from the coil 11212, so that the first supporting portion 112112 is on the edge of the first end wall 112117 to form a flange structure outwardly protruding from the edge of the first end wall 112117.

[0132] In the embodiment, the first supporting portion 112112 is outwardly extended at the edge of the first end wall 112117 in the first direction X, so that the first supporting portion 112112 facilitates the assembly of the first connecting terminal 11215 and enables the first connecting terminal 11215 to be arranged away from the coil 11212, thereby ensuring the reliability of the electrical connection.

[0133] Referring to FIG. 6, in some embodiments, the first conductive component 11214 includes a first connecting segment 112141 and a second connecting segment 112142, the first connecting segment 112141 is arranged on the first end surface 1128 of the ceramic body 11218 and electrically connected with the auxiliary static contact 11213, and the second connecting segment 112142 is arranged on the first side surface 1129 of the ceramic body 11218 and electrically connected with the first connecting segment 112141 and the first connecting terminal 11215.

[0134] Specifically, since the auxiliary static contact 11213 is located on the first end surface 1128 and the first connecting terminal 11215 is located on the first side surface 1129, the first conductive component 11214 should have two connected and conductive parts, i.e., the first connecting segment 112141 and the second connecting segment 112142, for the structural design of the first conductive component 11214, the first connecting segment 112141 is used to extend the position of the auxiliary static contact 11213 to the first side surface 1129, and the second connecting segment 112142 is used to connect and conduct between the first connecting segment 112141 and the first connecting terminal 11215.

[0135] Since the first end surface 1128 can be arranged perpendicularly to the first side surface 1129, it can be known that when the first connecting segment 112141 and the second connecting segment 112142 are both in a plate-like structure, the first connecting segment 112141 and the second connecting segment 112142 can also be arranged perpendicularly.

[0136] The first connecting segment 112141 and the second connecting segment 112142 can be connected in a fixed or detachable manner, or the first connecting segment 112141 and the second connecting segment 112142 can be prepared in an integrated structure.

[0137] In the embodiment, the first conductive member 11214 is attached to the surface of the ceramic body 11218 by the combination of the first connecting section 112141 and the second connecting section 112142, and the structure between the first conductive member 11214 and the ceramic body 11218 is more compact.

[0138] In some embodiments, the first conductive member 11214 includes an insulating body and a conductive body, and the conductive body is at least partially embedded in the insulating body.

[0139] Specifically, the insulating body is used to support and hold the conductive body, and the insulating body is used to directly contact the surface of the ceramic body 11218.

[0140] The conductive body is a conductive structure for directly connecting and conducting the auxiliary stationary contact 11213 and the first connecting terminal 11215, and therefore, the conductive body needs to be accommodated in the insulating body and form a connecting end at the position connected to the first connecting terminal 11215 and the auxiliary stationary contact 11213.

[0141] In the embodiment, the insulating body protects the conductive body and facilitates the assembly of the first conductive member 11214 on the surface of the ceramic body 11218.

[0142] In some embodiments, the first conductive member 11214 is a PCB board. The PCB board is a printed circuit board structure and is easy to manufacture.

[0143] In the embodiment, the structure of the PCB board is used to facilitate the manufacturing and installation, which is beneficial to improve the convenience of assembly and the efficiency of preparation.

[0144] Referring to FIG. 8, in some embodiments, the first connecting terminal 11215 includes a first connecting portion 112151, a first intermediate portion 112152, and a first adapter portion 112153, the first connecting portion 112151 and the first adapter portion 112153 are connected to the first intermediate portion 112152, the first intermediate portion 112152 is connected to the first holding portion 112112, and the first adapter portion 112153 is electrically connected to the first conductive member 11214.

[0145] Specifically, the first connecting terminal 11215 is a connecting component for conducting electricity, and therefore, the first connecting portion 112151, the first intermediate portion 112152, and the first adapter portion 112153 are all made of conductive materials, for example, metal materials, and the first connecting portion 112151, the first intermediate portion 112152, and the first adapter portion 112153 can be made of an integral structure, for example, the first connecting terminal 11215 can be directly injection molded by an injection mold, or can be made by bending.

[0146] The first connecting portion 112151 can adopt a sheet structure, the first connecting portion 112151 is in a sheet shape, the first intermediate portion 112152 can adopt a sheet structure, a rod structure or a wire structure, and the first intermediate portion 112152 can be connected to the first supporting portion 112112 in a mosaic or one-piece injection molding manner; the first adapter portion 112153 can adopt a sheet structure, a rod structure or a wire structure, and the first adapter portion 112153 can be conductively connected with the first conductive component 11214 by welding.

[0147] The first connecting portion 112151 and the first intermediate portion 112152 can be arranged at an included angle, and the first intermediate portion 112152 and the first adapter portion 112153 can also be arranged at an included angle, for example, the included angle ranges from 0° to 90°, for example, the first connecting portion 112151 and the first intermediate portion 112152 are arranged at a bending angle of 90°, and the first intermediate portion 112152 and the first adapter portion 112153 are arranged at a bending angle of 90°, so that the structure of the first connecting terminal 11215 is more diverse to adapt to the space layout inside the distribution box.

[0148] In the embodiment, the first connecting terminal 11215 is formed by three different parts, i.e., the first connecting portion 112151, the first intermediate portion 112152 and the first adapter portion 112153, so that the first connecting terminal 11215 can be firmly connected to the first supporting portion 112112, and the structure design is more reasonable, which is beneficial to improve the reliability of the connection.

[0149] Referring to FIG. 6, in some embodiments, the first connecting terminal 11215 is further provided with a threaded structure 112156, which is arranged on the first connecting surface 112155 in a direction perpendicular to the first connecting surface 112155.

[0150] Specifically, the threaded structure 112156 can refer to a structure provided with a thread, or the threaded structure 112156 specifically refers to a thread formed on the first connecting terminal 11215.

[0151] For example, the part of the first connecting terminal 11215 connected to the external circuit is in a plate shape, the plate-shaped part is parallel to the first connecting surface 112155, and the surface of the plate-shaped part forms the first connecting surface 112155, and the threaded structure 112156 is arranged on the first connecting surface 112155. For example, the threaded structure 112156 is an internal thread structure 112156 arranged on a threaded hole, and it can be known that the central axis of the internal thread hole is perpendicular to the first connecting surface 112155.

[0152] In the embodiment, the first connecting terminal 11215 is provided with the threaded structure 112156, so that the first connecting terminal 11215 can be fixed to the structural component in the external circuit by screwing, which is beneficial to improve the reliability of the connection.

[0153] Referring to FIGS. 5 and 10, in some embodiments, the threaded structure 112156 is a nut, which can be the first lock nut 11232 in the following examples. The first connecting terminal 11215 is further provided with a first connecting hole 112154 penetrating the first connecting surface 112155. The nut is correspondingly arranged with the first connecting hole 112154 and located on the side of the first connecting terminal 11215 away from the first connecting surface 112155.

[0154] Specifically, the nut is arranged on the first connecting terminal 11215 and can be fixed or detachably connected to the first connecting terminal 11215. It can be understood that the nut is a fastener for connecting the first connecting terminal 11215 to the structural component in the external circuit.

[0155] The first connecting terminal 11215 needs to be provided with a connecting hole corresponding to the nut. The first connecting hole 112154 is arranged on the first connecting surface 112155 and penetrates the first connecting terminal 11215 and the nut, so that the opposite threaded part can be screwed with the nut through the connecting hole, thereby achieving locking and fixing. The opposite threaded part can be a stud or bolt provided with external threads.

[0156] In the embodiment, the nut is arranged on the first connecting terminal 11215, thereby improving the convenience of screwing.

[0157] Referring to FIGS. 5-7, in some embodiments, the relay 1121 further includes a coil 11212 and a coil holder 112116. The coil 11212 is connected to the coil holder 112116. The coil holder 112116 has a first supporting portion 112112, and the first connecting terminal 11215 is arranged on the first supporting portion 112112. The first supporting portion 112112 has an assembly groove 112115, and a through hole is formed on the first supporting portion 112112 corresponding to the first connecting hole 112154. The nut (i.e., the first lock nut 11232 described below) is arranged in the assembly groove 112115.

[0158] Specifically, the first supporting part 112112 is provided with an assembly groove 112115, and therefore, the first supporting part 112112 can adopt a shell plate structure, the outer part of the first supporting part 112112 can be in a cubic shape, the first supporting part 112112 includes a circumferential (or lateral) frame and a bottom wall connected to the frame, and the frame and the bottom wall together form the assembly groove 112115. The first connecting terminal 11215 can be connected to the first supporting part 112112, and part of the first connecting terminal 11215 can be exposedly installed on the surface of the frame.

[0159] Therefore, the first connecting terminal 11215 is connected to the first supporting part 112112, the first connecting hole 112154 corresponding to the first connecting terminal 11215 is provided with a through hole on the first supporting part 112112, and the through hole and the first connecting hole 112154 are opposite to each other. For example, when a bolt is provided, the bolt can be inserted into the assembly groove 112115 through the through hole, the first connecting hole 112154 and the connecting hole, and it can be known that the nut (i.e., the first locking nut 11232) is accommodated in the assembly groove 112115 and is in threaded connection with the outer end of the bolt.

[0160] The nut (i.e., the first locking nut 11232) can be an independent component independent of the first supporting part 112112, or the nut can be fixed or integrally formed on the first supporting part 112112, thereby improving the compactness and stability of the overall structure.

[0161] In the embodiment, by providing the assembly groove 112115 on the first supporting part 112112, the nut is wrapped and hidden, and the risk of contact between the nut and the coil 11212 or other conductive components is reduced, thereby playing an isolation role to reduce the risk of short circuit in electrical connection.

[0162] Referring to FIGS. 4-6, in some embodiments, the relay 1121 further includes a yoke 11211 provided with a receiving groove 112113, and a coil holder 112116 is at least partially installed in the receiving groove 112113 of the yoke 11211. The coil holder 112116 includes a winding part 112111 for winding the coil 11212, and the coil holder 112116 further has a first end wall 112117 located on one side of the winding part 112111 along a first direction X and connected to one end of the winding part 112111 along the first direction X. The winding part 112111 and the first end wall 112117 are both located in the receiving groove 112113, the first direction X is the axial direction of the winding part 112111, the first connecting terminal 11215 is embedded in the first end wall 112117, and the first connecting surface 112155 is located outside the receiving groove 112113.

[0163] Specifically, in the relay 1121, when current is supplied to the coil 11212, a magnetic field is generated around the coil 11212. The yoke 11211, as a part of the magnetic circuit, guides and concentrates the magnetic field, so that the magnetic field is distributed along a specific path. The yoke 11211, together with the armature, the core and the like, forms a relatively closed magnetic circuit, so that the armature is driven to act against the elastic force, friction and the like, to drive the contact to be closed or opened, thereby controlling the on-off of the circuit.

[0164] In the example, the coil holder 112116 is mounted on the yoke 11211, and at least part of the structure or region of the coil holder 112116 is in contact with the yoke 11211. Specifically, the yoke 11211 is provided with a receiving groove 112113, and the coil holder 112116 is received in the receiving groove 112113. The yoke 11211 can adopt a frame structure.

[0165] For the coil holder 112116, the coil holder 112116 includes the winding part 112111 and the first end wall 112117. The structure and positional relationship of the winding part 112111 and the first end wall 112117 can refer to the above-mentioned embodiments, which will not be described here. The winding part 112111 and the first end wall 112117 are both received in the receiving groove 112113, thereby protecting the winding part 112111 and the first end wall 112117. In addition, the first end wall 112117 can be configured to be connected to the yoke 11211.

[0166] For the mounting position of the first connecting terminal 11215, since the first connecting terminal 11215 is used to be connected to the first conductive part 11214, one end of the first conductive part 11214 can extend to the position of the first end wall 112117, and the first supporting part 112112 is connected to the first end wall 112117. The first supporting part 112112 is connected to the first connecting terminal 11215, so that the first connecting terminal 11215 is directly or indirectly connected to the first end wall 112117.

[0167] The first connecting terminal 11215 is connected to the first end wall 112117 in a manner of being embedded, so that the first end wall 112117 protects and supports the first connecting terminal 11215.

[0168] For the position of the first connecting surface 112155 on the first connecting terminal 11215, the first connecting surface 112155 is located outside the receiving groove 112113, and the first connecting surface 112155 is a connecting surface exposed outside the receiving groove 112113, so that the structure of the external circuit can be matched with the first connecting surface 112155, which is conducive to reducing interference and improving the convenience of connection.

[0169] In the embodiment, the yoke 11211 bears and accommodates the coil holder 112116 and the coil 11212 thereon, and the first connecting surface 112155 is arranged outside the accommodation groove 112113 of the yoke 11211, so that the first connecting surface 112155 is exposed, facilitating assembly and improving the convenience of connecting with structural components in the external circuit.

[0170] Referring to FIGS. 4, 6 and 7, in some embodiments, the first connecting surface 112155 is provided with a first connecting hole 112154, the first connecting surface 112155 is connected with the external circuit through the first connecting hole 112154, and the extension line of the central axis of the first connecting hole 112154 does not interfere with the yoke 11211.

[0171] Specifically, the first connecting surface 112155 is connected with the external circuit through the first connecting hole 112154, which should be understood as that the first connecting hole 112154 is a position area where the first connecting terminal 11215 is directly connected or contacted with the external circuit. For example, the first connecting hole 112154 is used to configure a fastener, and the first connecting hole 112154 is used to be matched with a bolt for connection. The bolt is inserted into the first connecting hole 112154, so as to realize the connection and fixation with the structural components in the external circuit.

[0172] Since the bolt and other columnar structures need to be inserted into the first connecting hole 112154, in order to avoid the interference between the bolt and the yoke 11211, the extension line or the extension line of the central axis of the first connecting hole 112154 should not interfere with the yoke 11211, that is, the extension line of the central axis of the first connecting hole 112154 avoids the main body part of the yoke 11211, so as to reserve sufficient space for the end of the bolt extending out of the hole to avoid the surface area of the yoke 11211.

[0173] In the embodiment, by avoiding the yoke 11211 in the position of the first connecting hole 112154, the electrical connection reliability of the main static contact 11217, the first connecting terminal 11215 and the like during connection is improved, the space is reasonably utilized, and the risk of short circuit and interference during electrical connection is reduced.

[0174] Referring to FIGS. 4, 6 and 7, in some embodiments, the relay 1121 further comprises a coil 11212 and a second connecting terminal 11216 electrically connected with the coil 11212, and the second connecting terminal 11216 has a third connecting surface 112165.

[0175] Specifically, the second connection terminal 11216 can be considered as two pin structures connected with the coil 11212, and the second connection terminal 11216 is connected with an external power supply to supply power to the coil 11212.

[0176] The second connection terminal 11216 is provided with a third connecting surface 112165, which can be a flat surface, and the third connecting surface 112165 is a surface electrically connected with an external power supply circuit.

[0177] The second connection terminal 11216 can be connected to the coil holder 112116. The second connection terminal 11216 is an electrical connection component, for example, the second connection terminal 11216 can be a rigid metal conductive structure, which can be made of copper, nickel or aluminum, etc. For example, the second connection terminal 11216 can be a bar structure, a copper bar structure, etc. The structure of the second connection terminal 11216 can be adaptively designed according to the convenience of the second locking assembly 1125, for example, the second connection terminal 11216 can adopt a sheet structure, a frame structure, a hollow shell structure or a solid structure, etc.

[0178] It should be noted that since the relay 1121 needs to be connected in the electrical circuit, that is, the coil 11212 needs to be connected in the electrical circuit, it can be seen that two second connection terminals 11216 are needed, one for current input and one for current output, and the low-voltage power supply can be connected between the two second connection terminals 11216. It can be seen that the second connection terminal 11216 is a connection terminal for external low-voltage power supply of the coil 11212.

[0179] In this embodiment, by adding the second connection terminal 11216, the coil 11212 can be connected to the external power supply to realize the power supply of the coil 11212, and the surface connection mode of the third connecting surface 112165 can improve the contact area between the second connection terminal 11216 and the power supply circuit to improve the connection reliability.

[0180] Referring to FIG. 9, the second connection terminal 11216 includes a second connecting portion 112161, a second intermediate portion 112162 and a second adapter portion 112163, the second connecting portion 112161 and the second adapter portion 112163 are connected with the second intermediate portion 112162, the second intermediate portion 112162 is connected to the coil holder 112116, the second locking assembly 1125 is connected between the second connecting portion 112161 and the second conductive input portion 11223, and the second adapter portion 112163 is electrically connected with the second conductive component 1122.

[0181] Specifically, the second connecting terminal 11216 is a connecting component for conducting electricity, so it can be known that the second connecting portion 112161, the second intermediate portion 112162 and the second adapter portion 112163 are all made of conductive material, for example, made of metal material, and the second connecting portion 112161, the second intermediate portion 112162 and the second adapter portion 112163 can adopt an integrated structure, for example, the second connecting terminal 11216 can be directly injection molded by injection mold, or be prepared by bending.

[0182] Among them, the second connecting portion 112161 can adopt a sheet structure, and the second connecting portion 112161 is in a sheet shape, and correspondingly, the second conductive input portion 11223 can also be in a sheet shape, so that the second connecting portion 112161 and the second conductive input portion 11223 are attached or connected in lap joint, which is beneficial to increase the contact and lead-in area, and in addition, the sheet-shaped second connecting portion 112161 is more convenient for assembling with the second locking assembly 1125; the second intermediate portion 112162 can adopt a sheet, rod or wire structure, and the second intermediate portion 112162 can be connected to the yoke 11211 by inlaying or integrally injection molding; the second adapter portion 112163 can adopt a sheet, rod or wire structure, and the second adapter portion 112163 can be conductively connected with the second conductive component 1122 by welding.

[0183] The second connecting portion 112161 and the second intermediate portion 112162 can be arranged at an included angle, and the second intermediate portion 112162 and the second adapter portion 112163 can also be arranged at an included angle, for example, the included angle ranges from 0° to 90°, such as the second connecting portion 112161 and the second intermediate portion 112162 are arranged at a bending angle of 90°, and the second intermediate portion 112162 and the second adapter portion 112163 are arranged at a bending angle of 90°, so that the structure of the second connecting terminal 11216 is more diverse to adapt to the space layout inside the distribution box.

[0184] In the embodiment, the second connecting terminal 11216 is formed by forming three different parts of the second connecting portion 112161, the second intermediate portion 112162 and the second adapter portion 112163, so as to realize reliable connection with the second conductive input portion 11223 and be firmly connected to the yoke 11211, and the structure design is more reasonable, which is beneficial to improve the reliability of the connection.

[0185] Referring to FIGS. 4, 6 and 7, in some embodiments, the coil holder 112116 further comprises a second end wall 112118 and a second supporting portion 112114, the second end wall 112118 is connected to the other end of the winding portion 112111 along the first direction X to be opposite to the first end wall 112117, the second supporting portion 112114 is connected to the second end wall 112118 and protrudes from the edge of the second end wall 112118, the second connecting terminal 11216 is arranged on the second supporting portion 112114, and the first direction X is the axial direction of the winding portion 112111.

[0186] Specifically, along the first direction X, the first end wall 112117 is arranged opposite to the second end wall 112118, so that the first end wall 112117 and the second end wall 112118 can be connected to the two ends of the winding portion 112111 respectively. The first end wall 112117 and the second end wall 112118 can both be plate-shaped structures.

[0187] The second supporting portion 112114 is used for connecting and supporting the second connecting terminal 11216, the second supporting portion 112114 is located on the side of the coil holder 112116 deviated from the first direction X, and the second supporting portion 112114 can be a flange structure extending along the first direction X, so that the second supporting portion 112114 protrudes from the edge or edge portion of the second end wall 112118. The second connecting portion 112161 in the second connecting terminal 11216 can be connected to the second supporting portion 112114, and the third connecting surface 112165 is located on the second connecting portion 112161 and exposed on the second connecting portion 112161.

[0188] The second supporting portion 112114 extends along the first direction X to the side away from the coil 11212, and the second supporting portion 112114 extends along the first direction X and extends away from the coil 11212, so that the second supporting portion 112114 is on the edge portion of the second end wall 112118 to form a flange structure protruding from the edge of the second end wall 112118.

[0189] Further, the first supporting portions 112112 and the second supporting portions 112114 are oppositely arranged at two sides of the slot opening of the accommodating groove 112113, specifically, for example, the accommodating groove 112113 has a groove depth axis along the groove depth direction, then the two first supporting portions 112112 and the two second supporting portions 112114 are respectively located at two sides of the groove depth axis, or the first supporting portions 112112 and the second supporting portions 112114 are both arranged in the first direction X, the first supporting portions 112112 can protrude outside the slot opening of the accommodating groove 112113 in a direction perpendicular to the groove depth axis, and the second supporting portions 112114 can also protrude outside the slot opening of the accommodating groove 112113 in a direction perpendicular to the groove depth axis; in the direction perpendicular to the groove depth axis (i.e. the first direction X), the first supporting portions 112112 and the second supporting portions 112114 can extend away from each other and extend outside the slot opening of the accommodating groove 112113, forming protruding structures protruding outside the slot opening, so that the first supporting portions 112112 and the second supporting portions 112114 avoid the slot opening of the accommodating groove 112113, to facilitate smooth assembly and disassembly between the coil 11212 and the winding portion 112111.

[0190] It can be seen that the first supporting portions 112112 and the second supporting portions 112114 are both located at one side of the yoke 11211 provided with the slot opening, so as to facilitate the connection between the second conductive component 1122 and the first connecting terminal 11215 and the second connecting terminal 11216, which is beneficial to simplify the structure, improve the assembly convenience, and improve the space utilization.

[0191] In the embodiment, the second supporting portions 112114 can support and support the second connecting terminal 11216, improve the stability of the installation of the second connecting terminal 11216, and the second supporting portions 112114 extend outwardly from the edge of the second end wall 112118 in the first direction X, so that the second supporting portions 112114 facilitate the assembly of the second connecting terminal 11216 and can make the second connecting terminal 11216 away from the coil 11212, to ensure the reliability of the electrical connection.

[0192] In combination with FIGS. 3-8, in one specific embodiment, the relay 1121 includes a ceramic body 11218, a main static contact 11217, an auxiliary static contact 11213, a first conductive component 11214, and a first connecting terminal 11215, the main static contact 11217 and the auxiliary static contact 11213 are arranged on the ceramic body 11218, the first conductive component 11214 is electrically connected between the auxiliary static contact 11213 and the first connecting terminal 11215, the first connecting terminal 11215 includes a first connecting surface 112155, and an external circuit is connected to the first connecting surface 112155 to access the auxiliary circuit of the relay 1121; the first connecting surface 112155 is a flat surface; the ceramic body 11218 has a first end surface 1128 and a first side surface 1129, the first end surface 1128 and the first side surface 1129 are arranged perpendicularly, the main static contact 11217 is located on the first end surface 1128, and the first connecting surface 112155 is located on the first side surface 1129; the main static contact 11217 has a second connecting surface 112171, an external circuit is connected to the second connecting surface 112171 to access the main circuit of the relay 1121, and the first connecting surface 112155 and the second connecting surface 112171 are arranged perpendicularly; the relay 1121 further includes a coil 11212 and a coil holder 112116, the coil holder 112116 is provided with a winding portion 112111, the coil 11212 is wound around the winding portion 112111, the ceramic body 11218 has a first end surface 1128 and a second end surface 11281, the main static contact 11217 is located on the first end surface 1128, the coil holder 112116 is at least partially located on the second end surface 11281, and the first connecting terminal 11215 is arranged on the coil holder 112116; the coil holder 112116 further includes a first end wall 112117 and a first supporting portion 112112, along a first direction X, the first end wall 112117 is connected to one end of the winding portion 112111 along the first direction X, the first supporting portion 112112 is connected to the first end wall 112117 and protrudes from an edge of the first end wall 112117, the first connecting terminal 11215 is arranged on the first supporting portion 112112, and the first direction X is the axial direction of the winding portion 112111; the first supporting portion 112112 is connected to the edge of the first end wall 112117 and extends along the first direction X away from the coil 11212; the first connecting terminal 11215 is further provided with a threaded structure 112156, the threaded structure 112156 is arranged on the first connecting surface 112155 along a direction perpendicular to the first connecting surface 112155; the threaded structure 112156 is a nut, the first connecting terminal 11215 is further provided with a first connecting hole 112154 penetrating through the first connecting surface 112155, the nut is arranged corresponding to the first connecting hole 112154 and located on the side of the first connecting terminal 11215 away from the first connecting surface 112155;The coil holder 112116 comprises a winding portion 112111 for winding the coil 11212, and further comprises a first end wall 112117 located at one side of the winding portion 112111 along a first direction X and connected with one end of the winding portion 112111 along the first direction X, wherein the winding portion 112111 and the first end wall 112117 are both located in the accommodating groove 112113, the first direction X is the axial direction of the winding portion 112111, the first connecting terminal 11215 is embedded in the first end wall 112117, and the first connecting surface 112155 is located outside the accommodating groove 112113; the relay 1121 further comprises the coil 11212 and a second connecting terminal 11216 electrically connected with the coil 11212, wherein the second connecting terminal 11216 comprises a third connecting surface 112165; the coil holder 112116 further comprises a second end wall 112118 and a second supporting portion 112114, wherein the second end wall 112118 is connected with the other end of the winding portion 112111 along the first direction X to be oppositely arranged with the first end wall 112117, the second supporting portion 112114 is connected with the second end wall 112118 and protrudes from the edge of the second end wall 112118, the second connecting terminal 11216 is arranged on the second supporting portion 112114, and the first direction X is the axial direction of the winding portion 112111.

[0193] The application further provides an electric control device 1120, as shown in FIG. 3 and FIGS. 10-12, which comprises the relay 1121 in the above-mentioned embodiments, and further comprises a second conductive component 1122, wherein the second conductive component 1122 comprises a fourth connecting surface 112212 connected with the first connecting surface 112155 to realize the electrical connection between the first connecting terminal 11215 and the second conductive component 1122.

[0194] The second conductive component 1122 is also an electrically connecting component, the second conductive component 1122 can adopt a rigid metal conductive structure, and the second conductive component 1122 can be made of copper, nickel or aluminum, etc., for example, the second conductive component 1122 can be a bar structure or a copper bar structure. The second conductive component 1122 is used for connecting between the first connecting terminal 11215 and an external circuit, and the external circuit can be provided with a battery management main control board 1127, that is, the second conductive component 1122 is used for connecting between the first connecting terminal 11215 and the battery management main control board 1127, so as to transmit a control signal to the external circuit. Therefore, it can be understood that the second conductive component 1122 has two conductive connecting parts (or conductive connecting terminals), which are defined as a first conductive input part 11221 and a first conductive output part 11222, respectively, and a fourth connecting surface 112212 is located on the first conductive input part 11221, the first conductive input part 11221 is in contact with the first connecting terminal 11215, that is, the fourth connecting surface 112212 is in contact with the first connecting surface 112155, and the first conductive output part 11222 is electrically connected with the battery management main control board 1127. It can be seen that the second conductive component 1122 forms a signal transmission component for transmitting a signal (or current or voltage).

[0195] For the battery management main control board 1127, the battery management main control board 1127 is a main component in the battery management system, in the example, the battery management main control board 1127 can be a circuit board of the BMU, or a circuit board integrated with the circuit of the BMU and the circuit of the CSC. The battery management system can have a shell, and the battery management main control board 1127 can be connected to the shell, or the battery management system does not have a shell, and the battery management main control board 1127 can be directly connected to the shell or mounting seat of the other relay 1121.

[0196] It should be noted that for the second conductive component 1122, corresponding to the two first connecting terminals 11215, the first conductive input part 11221 needs to be provided with two, each first conductive input part 11221 is electrically connected with the corresponding first conductive input part 11221, and each first conductive input part 11221 is connected between the corresponding first conductive input part 11221. Of course, it can also be understood that corresponding to the two first conductive input parts 11221, two first conductive output parts 11222 are correspondingly provided on the second conductive component 1122, one first conductive input part 11221 is connected and conducted with the corresponding first conductive output part 11222, thereby forming two mutually independent conduction parts.

[0197] Specifically, the fourth connecting surface 112212 is formed on the first conductive input part 11221 on the second conductive part 1122, and the first connecting surface 112155 is connected with the fourth connecting surface 112212, that is, the first conductive input part 11221 is connected with the first connecting terminal 11215.

[0198] In the embodiment, the auxiliary static contact 11213 is connected through the first conductive part 11214, so as to be equivalent to shifting the auxiliary static contact 11213 to the first connecting terminal 11215, and the first connecting terminal 11215 can be connected with the second conductive part 1122, and the wire harness is replaced by the second conductive part, which is beneficial to improving the regularity and integration of the whole device.

[0199] Referring to FIGS. 4-7, in some embodiments, the first connecting surface 112155 and the fourth connecting surface 112212 are both flat surfaces.

[0200] The first connecting surface 112155 and the fourth connecting surface 112212 are both flat surfaces, so that a larger contact area can be provided between the first connecting terminal 11215 and the second conductive part 1122, so that a larger electrical contact area can be obtained when the corresponding electrical connection structures are in contact with each other, thereby improving the stability and reliability of electrical connection.

[0201] Referring to FIGS. 3, 10 and 11, in some embodiments, the first connecting surface 112155 and the fourth connecting surface 112212 are bolted or welded.

[0202] Specifically, the first connecting surface 112155 and the fourth connecting surface 112212 can be arranged in abutment, and welded at the abutment position, so as to realize the welding fixation between the first connecting terminal 11215 and the second conductive part 1122.

[0203] Alternatively, an external connecting part is used, for example, a bolt is used to connect between the first connecting surface 112155 and the fourth connecting surface 112212, that is, the first connecting terminal 11215 and the second conductive part 1122 are locked and fixed through the bolt.

[0204] In the embodiment, the welding mode can improve the firmness of the connection between the first connecting terminal 11215 and the second conductive part 1122, and the bolt connection mode can make the installation and disassembly between the first connecting terminal 11215 and the second conductive part 1122 more flexible, which is convenient for installation and disassembly.

[0205] Referring to FIGS. 3, 10 and 11, in some embodiments, the electric control device 1120 further comprises a first locking assembly 1123, which is connected to the first connecting terminal 11215 and the second conductive part 1122 at the positions of the first connecting surface 112155 and the fourth connecting surface 112212, respectively.

[0206] The first locking assembly 1123 is used to lock and fix the second conductive part 1122 and the first connecting terminal 11215. The locking mode of the first locking assembly 1123 can include threaded connection, buckle connection, limiting plug-in, binding connection or welding, etc.

[0207] For example, the first locking assembly 1123 comprises a first locking column 11231 and a first lock nut 11232, the first connecting terminal 11215 has a first connecting hole 112154, and the first conductive input part 11221 has a first conductive hole 112211 corresponding to the first connecting hole 112154. The first locking column 11231 is plug-in matched with the first connecting hole 112154 and the first conductive hole 112211, and the first lock nut 11232 is threadedly connected with the end of the first locking column 11231 extending out of the first connecting hole 112154 and the first conductive hole 112211.

[0208] The first locking column 11231 and the first lock nut 11232 are assembled by threaded connection, thereby locking and fixing the first connecting terminal 11215 and the first conductive input part 11221. For the first locking column 11231, it can be understood as a kind of stud or bolt structure, and the outer column surface of the first locking column 11231 forms an external thread structure 112156. For the first lock nut 11232, it can be understood as a kind of nut, and the first lock nut 11232 has a threaded hole.

[0209] Correspondingly, the first connecting terminal 11215 has a first connecting hole 112154, which can be a through hole or a threaded hole, and the first connecting hole 112154 can be arranged on the sheet-shaped structure part of the first connecting terminal 11215. For example, the first connecting part 112151 in the first connecting terminal 11215 is sheet-shaped or plate-shaped, and the first connecting part 112151 can also be understood as a kind of bar structure, or the first connecting terminal 11215 can be understood as a kind of bar structure as a whole, and the first connecting hole 112154 is arranged on the first connecting part 112151.

[0210] Correspondingly, the first conductive input part 11221 has a first conductive hole 112211, which can be a through hole or a threaded hole. The first conductive input part 11221 can be a sheet-shaped structural part on the second conductive part 1122. For example, the second conductive part 1122 has an irregularly bent sheet-shaped structure as a whole, and the first conductive input part 11221 is part of the sheet-shaped structure, and the first conductive hole 112211 is formed on the sheet-shaped part.

[0211] The first connecting terminal 11215 is in abutment or overlap with the first conductive input part 11221, and forms a first connecting surface 112155 and a fourth connecting surface 112212 in abutment connection. The first connecting hole 112154 and the first conductive hole 112211 are both located at the abutment or overlap position. Therefore, the first locking column 11231 penetrates and cooperates with the first connecting hole 112154 and the first conductive hole 112211, respectively. The end portion of the first locking column 11231 extending out of the first connecting hole 112154 and the first conductive hole 112211 is threadedly connected with the first lock nut 11232, thereby limiting and fixing the first connecting terminal 11215 and the first conductive input part 11221.

[0212] In this embodiment, the first locking assembly 1123 is used for connection and fixation, thereby realizing detachable connection between the second conductive part 1122 and the first connecting terminal 11215, and making the installation and disassembly of the first connecting terminal 11215 and the second conductive part 1122 more flexible and convenient.

[0213] Referring to FIGS. 3, 10 and 11, in some embodiments, the electric control device 1120 further includes a bearing seat 1124 connected with the second conductive part 1122.

[0214] The bearing seat 1124 is used for bearing and supporting the second conductive part 1122. The bearing seat 1124 can have a frame structure, a plate structure, a hollow structure or a solid structure, etc. In some embodiments, the bearing seat 1124 can be referred to as an upper shell, which is arranged corresponding to a lower shell for accommodating and installing the relay 1121.

[0215] The second conductive part 1122 and the bearing seat 1124 can be connected in a fixed or detachable manner. For example, the second conductive part 1122 and the bearing seat 1124 are integrally formed by injection molding.

[0216] The carrier 1124 is used to support and carry the second conductive component 1122, so when the carrier 1124 is prepared, the second conductive component 1122 can be directly embedded or embedded in the carrier 1124, for example, the carrier 1124 and the second conductive component 1122 are integrally formed by injection molding.

[0217] The position or part of the second conductive component 1122 in direct contact with and fixed to the carrier 1124 can be the integrated body 11225. When the second conductive component 1122 and the carrier 1124 are prepared and assembled, the integrated body 11225 on the second conductive component 1122 can first be an integral sheet structure, and after the second conductive component 1122 and the carrier 1124 are assembled, the integrated body 11225 can be punched to correspond to the conduction between the first input conductive body 11226 and the first output conductive body 11227, and the conduction between the second input conductive body 11228 and the second output conductive body 11229, thereby facilitating the convenience of assembly.

[0218] In this embodiment, the carrier 1124 supports the second conductive component 1122 to form an integrated structure with the second conductive component 1122, so that the structure is more compact, improves the structural stability of the second conductive component 1122, and improves the convenience of connection with the external circuit.

[0219] Referring to FIGS. 4-6, in some embodiments, the ceramic body 11218 has a first end surface 1128 and a first side surface 1129, and the main static contact 11217 is located on the first end surface 1128. The first connecting terminal 11215 and the second conductive component 1122 are both located in the direction of the first side surface 1129.

[0220] Specifically, the first end surface 1128 and the first side surface 1129 are surfaces at two different positions of the ceramic body 11218, or are two different end surfaces or side surface directions of the ceramic body 11218. In the case where the main static contact 11217 is located on the first end surface 1128, the first connecting terminal 11215 is located on the first side surface 1129, and the second conductive component 1122 needs to be assembled with the first connecting terminal 11215, so the second conductive component 1122 also needs to be arranged in the direction of the first side surface 1129, that is, the first connecting terminal 11215 and the second conductive component 1122 are located on the same side of the ceramic body 11218, thereby facilitating the convenient connection of the second conductive component 1122 and the first connecting terminal 11215.

[0221] For example, when the relay 1121 is installed horizontally, the first connecting terminal 11215 is located on the surface facing upward, that is, the first side surface 1129 is arranged toward the upward direction, and correspondingly, the first end surface 1128 is arranged toward the lateral direction, so that the main static contact 11217 and the auxiliary static contact 11213 are both located in the lateral direction. Therefore, it is obtained that the second conductive component 1122 is located above the surface of the relay 1121 facing upward, that is, the second conductive component 1122 is located in the space above the first side surface 1129, and it can be understood that the carrier seat 1124 is located above the relay 1121.

[0222] In the embodiment, the first connecting terminal 11215 and the second conductive component 1122 are both located on the first side surface 1129, which is beneficial to simplify the structure of the second conductive component 1122, improve the compactness of the overall structure connection, and facilitate the assembly of the second conductive component 1122 and the carrier seat 1124, and is beneficial to improve the space utilization.

[0223] In some embodiments, referring to FIGS. 3, 10 and 11, the electric control device 1120 includes the relay 1121 in the above-mentioned embodiment with the second connecting terminal 11216, and the electric control device 1120 further includes the second conductive component 1122, the first locking assembly 1123 and the second locking assembly 1125. The second conductive component 1122 has a fourth connecting surface 112212 and a fifth connecting surface 112232, respectively. The fourth connecting surface 112212 is connected to the first connecting surface 112155 to realize the electrical connection between the first connecting terminal 11215 and the second conductive component 1122. The first locking assembly 1123 is connected to the first connecting terminal 11215 and the second conductive component 1122 at the positions of the first connecting surface 112155 and the fourth connecting surface 112212, respectively. The fifth connecting surface 112232 is connected to the third connecting surface 112165 to realize the electrical connection between the second connecting terminal 11216 and the second conductive component 1122. The second locking assembly 1125 is connected to the second connecting terminal 11216 and the second conductive component 1122 at the positions of the fifth connecting surface 112232 and the fourth connecting surface 112212, respectively.

[0224] The fourth connecting surface 112212 and the fifth connecting surface 112232 are connecting surfaces of two connecting positions on the second conductive component 1122, the first connecting surface 112155 is located on the first connecting terminal 11215, and the first connecting surface 112155 is connected with the fourth connecting surface 112212, which is equivalent to that the first connecting terminal 11215 is connected with the second conductive component 1122. The third connecting surface 112165 is located on the second connecting terminal 11216, so the third connecting surface 112165 is connected with the fifth connecting surface 112232, which is equivalent to that the second connecting terminal 11216 is connected with the second conductive component 1122.

[0225] Specifically, the second connecting terminal 11216 is an electric connecting component, for example, the second connecting terminal 11216 can be a rigid metal conductive structure, and the second connecting terminal 11216 can be made of copper material, nickel material or aluminum material, etc., for example, the second connecting terminal 11216 can be a bar structure, a copper bar structure, etc. The structure form of the second connecting terminal 11216 can be adaptively designed according to the convenience of the locking of the second locking assembly 1125, for example, the second connecting terminal 11216 can adopt a sheet structure, a frame structure, a hollow shell structure or a solid structure, etc.

[0226] The second conductive component 1122 is used for connecting between the second connecting terminal 11216 and the battery management master control board 1127, so as to transmit the control signal to the battery management master control board 1127. Therefore, it can be understood that the second conductive component 1122 also has two conductive connecting parts (or conductive connecting ends), which are defined as a second conductive input part 11223 and a second conductive output part 11224 respectively, the second conductive input part 11223 is in contact with the second connecting terminal 11216, since the fifth connecting surface 112232 is located on the second conductive input part 11223 and the third connecting surface 112165 is located on the second connecting terminal 11216, the second conductive input part 11223 in contact with the second connecting terminal 11216 is equivalent to that the fifth connecting surface 112232 in contact with the third connecting surface 112165, and the second conductive output part 11224 is electrically connected with the battery management master control board 1127. It can be understood that the first conductive input part 11221 and the first conductive output part 11222 form a conductive path, and the second conductive input part 11223 and the second conductive output part 11224 form another conductive path, and the two conductive paths are independent of each other.

[0227] The second conductive input part 11223 needs to keep in contact with the second connecting terminal 11216 at all times, and therefore, the second locking assembly 1125 is arranged to lock and fix the second conductive input part 11223 and the second connecting terminal 11216. The locking mode of the second locking assembly 1125 can include threaded connection, buckle connection, limiting plug-in connection, binding connection or welding, etc.

[0228] It should be noted that since the relay 1121 needs to be connected in an electric circuit, i.e., the coil 11212 needs to be connected in an electric circuit, it can be known that two second connecting terminals 11216 need to be arranged, one second connecting terminal 11216 is used for current input, and one second connecting terminal 11216 is used for current output, and the low-voltage power supply is connected between the two second connecting terminals 11216. It can be known that the second connecting terminal 11216 is a connecting terminal for externally connecting a low-voltage power supply of the coil 11212.

[0229] In this example, the second connecting terminal 11216 can be locked and fixed with the second conductive part 1122 through the second locking assembly 1125, which is conducive to improving the connection reliability between the second conductive part 1122 and the second connecting terminal 11216, and the second conductive part 1122 replaces the wire harness, which is conducive to improving the regularity and integration of the entire device; and the second conductive part 1122 is an integrated part that can integrate the first conductive input part 11221, the first conductive output part 11222, the second conductive input part 11223 and the second conductive output part 11224, which is conducive to simplifying the structure, improving the integration of the part, saving space and improving the space utilization.

[0230] In this embodiment, by additionally arranging the second locking assembly 1125, the locking and fixing between the second connecting terminal 11216 and the second conductive part 1122 is realized, which is conducive to improving the reliability of the connection between the second connecting terminal 11216 and the second conductive part 1122.

[0231] Referring to FIGS. 3, 10 and 11, the second locking assembly 1125 includes a second locking column 11251 and a second lock nut 11252, the second connecting terminal 11216 has a second connecting hole 112164, and the second conductive input part 11223 has a second conductive hole 112231 corresponding to the second connecting hole 112164, the second locking column 11251 is plugged and matched with the second connecting hole 112164 and the second conductive hole 112231, and the second lock nut 11252 is threadedly connected with the end of the second locking column 11251 that extends out of the second connecting hole 112164 and the second conductive hole 112231.

[0232] The second locking post 11251 is assembled with the second locking nut 11252 through threaded connection, thereby locking and fixing the second connecting terminal 11216 and the second conductive input part 11223. The second locking post 11251 can be understood as a stud or bolt structure, and the outer column surface of the second locking post 11251 is provided with an external thread structure 112156. The second locking nut 11252 can be understood as a nut, and the second locking nut 11252 is provided with a threaded hole.

[0233] Correspondingly, the second connecting terminal 11216 is provided with a second connecting hole 112164, which can be a through hole or a threaded hole. The second connecting hole 112164 can be arranged on a sheet-shaped structure part of the second connecting terminal 11216. For example, the second connecting part 112161 of the second connecting terminal 11216 is in a sheet shape or a plate shape, and the second connecting part 112161 can also be understood as a bar structure. Alternatively, the second connecting terminal 11216 can be understood as a bar structure as a whole, and the second connecting hole 112164 is arranged on the second connecting part 112161.

[0234] Correspondingly, the second conductive input part 11223 is provided with a second conductive hole 112231, which can be a through hole or a threaded hole. The second conductive input part 11223 can be a sheet-shaped structure part of the second conductive part 1122. For example, the second conductive part 1122 is in an irregularly bent sheet shape, and the second conductive input part 11223 is a part of the sheet-shaped structure, and the second conductive hole 112231 is arranged on the sheet-shaped part.

[0235] The second connecting terminal 11216 and the second conductive input part 11223 are in abutment or lapping, and the second connecting hole 112164 and the second conductive hole 112231 are both arranged at the abutment or lapping position. Therefore, the second locking post 11251 is respectively threaded with the second connecting hole 112164 and the second conductive hole 112231, and the end of the second locking post 11251 extending out of the second connecting hole 112164 and the second conductive hole 112231 is screwed with the second locking nut 11252, thereby limiting and fixing the second connecting terminal 11216 and the second conductive input part 11223.

[0236] In the embodiment, the second locking assembly 1125 adopts the threaded connection between the second locking post 11251 and the second locking nut 11252, thereby realizing the detachable connection between the second conductive input part 11223 and the second connecting terminal 11216, and making the installation and disassembly of the second connecting terminal 11216 and the second conductive part 1122 more flexible and convenient.

[0237] Referring to FIG. 3, FIG. 10 and FIG. 11, in some embodiments, the first conductive output part 11222 and the second conductive output part 11224 form a plug-in port structure 1126 on the bearing seat 1124.

[0238] Specifically, the plug-in port structure 1126 can be understood as a plug-in terminal capable of plug-in conduction with an opposite port structure. For example, the plug-in port structure 1126 is a male terminal, and the opposite port structure can be a female terminal. The male terminal can be plug-in conducted with the female terminal. It can be understood that the opposite female terminal should be connected to the battery management main control board 1127, and the connection conduction between the second conductive part 1122 and the battery management main control board 1127 is realized by plug-in port.

[0239] For the first conductive output part 11222 and the second conductive output part 11224, they can be understood as independent pins or pins in the plug-in port structure 1126. A plurality of pins and pins integrated on the plug shell can form the entire plug-in port structure 1126. In the present embodiment, the bearing seat 1124 corresponds to the plug shell, and plays a role of bearing and supporting each first conductive output part 11222 and second conductive output part 11224.

[0240] Then, the second conductive part 1122 can be understood as an integrated copper bar structure. The copper bar structure forms a conductive link connecting the first conductive input part 11221 and the first conductive output part 11222, and forms another conductive link connecting the second conductive input part 11223 and the second conductive output part 11224. The second conductive part 1122 is an integrated conductive copper bar.

[0241] In the present embodiment, by forming the plug-in port structure 1126 on the bearing seat 1124, the connection conduction between the second conductive part 1122 and the battery management main control board 1127 can be more convenient to realize, and the convenience of connection is improved.

[0242] Referring to FIG. 12, in some embodiments, the second conductive component 1122 includes an integrated body 11225, a first input conductive body 11226, a first output conductive body 11227, a second input conductive body 11228, and a second output conductive body 11229; one end of the first input conductive body 11226 and one end of the first output conductive body 11227 are connected to the integrated body 11225 and are connected in conduction through the integrated body 11225, the other end of the first input conductive body 11226 away from the integrated body 11225 forms a first conductive input portion 11221, and the other end of the first output conductive body 11227 away from the integrated body 11225 forms a first conductive output portion 11222; one end of the second input conductive body 11228 and one end of the second output conductive body 11229 are connected to the integrated body 11225 and are connected in conduction through the integrated body 11225, the other end of the second input conductive body 11228 away from the integrated body 11225 forms a second conductive input portion 11223, and the other end of the second output conductive body 11229 away from the integrated body 11225 forms a second conductive output portion 11224.

[0243] Specifically, the integrated body 11225 can be understood as an intermediate connecting portion, and the first input conductive body 11226, the first output conductive body 11227, the second input conductive body 11228, and the second output conductive body 11229 can be connected through the integrated body 11225; for example, the integrated body 11225, the first input conductive body 11226, the first output conductive body 11227, the second input conductive body 11228, and the second output conductive body 11229 can be an integrally formed conductive sheet structure; for example, the second conductive component 1122 can be a sheet-shaped copper bar structure, and the first input conductive body 11226, the first output conductive body 11227, the second input conductive body 11228, and the second output conductive body 11229 can be a plurality of tabs extending outward from the copper bar structure; it can be known that the first input conductive body 11226, the first output conductive body 11227, the second input conductive body 11228, and the second output conductive body 11229 each have two extension ends.

[0244] Therefore, one end of the first input conductive body 11226 away from the integrated body 11225 and connected with the first connection terminal 11215 forms a first conductive input part 11221, one end of the first output conductive body 11227 away from the integrated body 11225 and connected with the battery management main control board 1127 forms a first conductive output part 11222, one end of the second input conductive body 11228 away from the integrated body 11225 and connected with the second connection terminal 11216 forms a second conductive input part 11223, and one end of the second output conductive body 11229 away from the integrated body 11225 and connected with the battery management main control board 1127 forms a second conductive output part 11224.

[0245] In the embodiment, the second conductive part 1122 is integrated with the integrated body 11225 in the integrated structure of the first input conductive body 11226, the first output conductive body 11227, the second input conductive body 11228, and the second output conductive body 11229, which is conducive to improving the integration between components, reducing the number of components, and improving the convenience of assembly.

[0246] In some embodiments, the second conductive part 1122 and the bearing seat 1124 are an integral structure formed by injection molding.

[0247] The bearing seat 1124 is used to support and carry the second conductive part 1122, so when the bearing seat 1124 is prepared, the second conductive part 1122 can be directly buried or embedded on the bearing seat 1124, for example, the bearing seat 1124 and the second conductive part 1122 are integrally formed by injection molding.

[0248] Specifically, the position or part of the second conductive part 1122 that directly contacts and fixes the bearing seat 1124 can be the integrated body 11225. When the second conductive part 1122 and the bearing seat 1124 are prepared and assembled, the integrated body 11225 on the second conductive part 1122 can first be an integral sheet structure, and after the second conductive part 1122 and the bearing seat 1124 are assembled, the integrated body 11225 can be punched to correspond to the conduction between the first input conductive body 11226 and the first output conductive body 11227, and the conduction between the second input conductive body 11228 and the second output conductive body 11229, thereby facilitating the convenience of assembly.

[0249] In the embodiment, the second conductive part 1122 and the bearing seat 1124 are an integral structure formed by injection molding, which can reduce the process during assembly of the electronic control device 1120 and is conducive to improving the efficiency of assembly.

[0250] Referring to FIGS. 3, 10 and 11, in some embodiments, the electric control device 1120 includes a plurality of relays 1121, and a plurality of second conductive components 1122 and a plurality of first locking assemblies 1123 are respectively arranged corresponding to the relays 1121, one relay 1121 is arranged corresponding to one second conductive component 1122 and one first locking assembly 1123, and each second conductive component 1122 is connected to the bearing seat 1124.

[0251] Specifically, each relay 1121 needs to be connected and conducted through the second conductive component 1122, and therefore, the number of the second conductive components 1122 needs to be matched with the number of the relays 1121 for setting, one relay 1121 is arranged corresponding to one second conductive component 1122. Correspondingly, the first locking assembly 1123 also needs to be arranged in plurality, and each first conductive input 11221 and the first connecting terminal 11215 needs to be locked and fixed through the first locking assembly 1123. Correspondingly, the number of the second connecting terminal 11216 and the second locking assembly 1125 needs to be matched with the number of the relays 1121 for corresponding setting.

[0252] In the present embodiment, the bearing seat 1124 can integrate and connect the plurality of second conductive components 1122, and centrally bear and install the plurality of second conductive components 1122, thereby facilitating to improve the compactness of the whole structure, to reduce the number of parts, to improve the convenience of installation, and to improve the integration of the whole structure.

[0253] According to some embodiments of the present application, referring to FIG. 2, the present application also provides a battery device 1100, which includes the battery monomer assembly 1110 and the electric control device 1120 in the above-mentioned embodiments, the battery monomer assembly 1110 and the electric control device 1120 are electrically connected, the battery monomer assembly 1110 is arranged in one or more, and the battery monomer assembly 1110 includes one or more battery monomers. The battery device 1100 disclosed in the embodiments of the present application can be used in various energy storage devices and energy storage systems using the battery device 1100 as an energy storage element or in use devices using the battery device 1100 as a power supply.

[0254] The battery monomer refers to the smallest unit of the battery device 1100. Each battery monomer can be a secondary battery monomer or a primary battery monomer; it can also be a lithium-sulfur battery monomer, a sodium-ion battery monomer or a magnesium-ion battery monomer, but is not limited thereto. The battery monomer can be in the shape of a cylinder, a flat body, a cuboid or other shapes.

[0255] The battery device 1100 can further include a box 1130 for providing a receiving space 1133 for the battery cell assembly 1110 and the electric control device 1120, which can be received in the receiving space 1133 of the box 1130, and the box 1130 can have various structures. For example, the box 1130 can include a first part 1131 and a second part 1132, which are coupled to each other to define the receiving space 1133 for receiving the battery cell assembly 1110. The second part 1132 can be a hollow structure with one open end, and the first part 1131 can be a plate structure, which is coupled to the open end of the second part 1132 to define the receiving space 1133 together with the second part 1132. Alternatively, the first part 1131 and the second part 1132 can both be hollow structures with one open end, and the open end of the first part 1131 is coupled to the open end of the second part 1132. Of course, the box 1130 formed by the first part 1131 and the second part 1132 can have various shapes, such as a cylinder or a cuboid.

[0256] 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 according to the above embodiments, and the power conversion device is electrically connected to the power generation device and the energy storage device.

[0257] Specifically, the energy storage device can include one or more battery clusters to improve the voltage and capacity of the energy storage device. The battery cluster can include a plurality of battery devices 1100, which are connected in series by busbar components to improve the voltage of the energy storage device. When the energy storage device includes a plurality of battery clusters, the plurality of battery clusters are connected in parallel to improve the capacity of the energy storage device.

[0258] The energy storage device can be used in an energy storage power station, a wind power generation system, a solar power generation system, a mobile power system, or a temporary power supply system, etc. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device can store electrical energy during the off-peak period of electricity consumption, and provide electrical energy for related users or electrical equipment during the peak period of electricity consumption. The energy storage system according to the embodiments of the present application can be any power system that needs to use an energy storage device.

[0259] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0260] In some embodiments, the energy storage device can include a cabinet and one or more battery clusters, which are accommodated in the cabinet.

[0261] In some embodiments, the energy storage device can include a thermal management module, a master control module, a general control module, a power distribution module, a fire control module, and the like.

[0262] As an example, the thermal management module can include a liquid cooling unit that provides cooling liquid to each battery device 1100 through a pipeline for adjusting the temperature of the battery cell.

[0263] As an example, the master control module can serve as a battery management unit of the battery cluster for monitoring and managing the battery cluster. The master control module can monitor information such as current, voltage, power, or temperature of the battery cluster. For example, the charging and discharging current, voltage, and the like of the battery cluster can be controlled. The master control module includes a slave battery management unit SBMU (Slave Battery Management Unit, SBMU), a fusion switch, and the like.

[0264] As an example, the general control module can serve as a battery management unit of the energy storage device for monitoring and managing the energy storage device. The general control module can monitor information such as current, voltage, power, state of charge, or temperature of the energy storage device. For example, the charging and discharging current, voltage, and the like of the energy storage device can be controlled. As an example, the general control module includes an insulation monitoring module IMM (Insulation Monitoring Module, IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU), an Ethernet ETH (EtherNet, ETH), and an optical fiber conversion module, and the like.

[0265] As an example, the fire control module includes a control panel, a detector, an alarm device, and the like for detecting, alarming, or extinguishing the energy storage system.

[0266] As an example, the power distribution module can be used to distribute power to the modules that need power in the energy storage device.

[0267] According to some embodiments of the present application, the present application also provides an energy storage system, which includes a power conversion device and an energy storage device in the above embodiments, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0268] In some embodiments, the energy storage system can include one or more energy storage devices and a power conversion device (Power Converter System, PCS) connected between the power generation device and the energy storage device. The power generation device is used to generate electric energy, and the electric energy generated by the power generation device can be stored in the energy storage device through the power conversion device. As an example, the power generation device can be a solar panel, a water power generation device, a fire power generation device, a wind power generation device, and the like. The specific type of the power generation device is not limited in the present application.

[0269] According to some embodiments of the present application, referring to FIG. 1, the present application also provides a power-using device, the power-using device comprising the battery device 1100 in the above embodiments, the energy storage device in the above embodiments, or the energy storage system in the above embodiments, the battery device 1100 being used for storing or providing electric energy.

[0270] The technical solutions described in the embodiments of the present application are applicable to various power-using devices using battery monomers, such as mobile phones, portable devices, notebook computers, electric vehicles, electric toys, electric tools, vehicles, ships, and spacecraft, such as aircraft, rockets, space shuttles, and spaceships.

[0271] For the convenience of description, the power-using device in an embodiment of the present application is taken as a vehicle 1000 for example.

[0272] Please refer to FIG. 1, which is a structural schematic diagram of a vehicle 1000 provided by some embodiments of the present application. The vehicle 1000 can be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile. The vehicle 1000 is internally provided with a battery device 1100, which can be arranged at the bottom, the head, or the tail of the vehicle 1000. The battery device 1100 can be used for power supply of the vehicle 1000, for example, the battery device 1100 can be used as an operating power source of the vehicle 1000. The vehicle 1000 can further comprise a controller 1200 and a motor 1300, the controller 1200 being used for controlling the battery device 1100 to supply power to the motor 1300, for example, for the working power demand of the vehicle 1000 during starting, navigation, and driving.

[0273] In some embodiments of the present application, the battery device 1100 can not only be used as an operating power source of the vehicle 1000, but also be used as a driving power source of the vehicle 1000, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle 1000.

[0274] The example of the power-using device in the present application is based on the example of the battery device 1100, and the example of the power-using device contains all the technical effects of the example of the battery device 1100, which will not be described again.

[0275] According to some embodiments of the present application, the present application also provides a charging network, the charging network comprising a charging pile and the energy storage device in the above embodiments or the energy storage system in the above embodiments, the energy storage device being used for providing electric energy for the charging pile.

[0276] For example, the charging network includes a charging pile and an energy storage device, the charging pile is electrically connected with the energy storage device, and the energy storage device is used to provide electric energy for the charging pile. The charging pile is electrically connected with the battery device 1100 in the energy storage device through a cable, and the battery device 1100 can provide the stored electric energy to the charging pile. The charging pile has one or more connectors for connecting with the electric device (such as the vehicle 1000), so as to supply energy to the electric device.

[0277] The energy storage device can be located inside the charging pile (for example, a charging and storing integrated machine) or outside the charging pile.

[0278] The above is only a preferred embodiment of the present application, and only the technical principles of the present application are specifically described, and these descriptions are only for explaining the principles of the present application, and cannot be explained as a limitation on the protection scope of the present application in any way. Based on the explanation here, any modification, equivalent replacement and improvement made within the spirit and principle of the present application, and other specific embodiments of the present application which can be easily thought by those skilled in the art without creative labor, should be included in the protection scope of the present application.

Claims

1. A relay (1121), characterized in that, The device includes a ceramic body (11218), a main stationary contact (11217), an auxiliary stationary contact (11213), a first conductive component (11214), and a first connecting terminal (11215). The main stationary contact (11217) and the auxiliary stationary contact (11213) are both disposed on the ceramic body (11218). The first conductive component (11214) is electrically connected between the auxiliary stationary contact (11213) and the first connecting terminal (11215). The first connecting terminal (11215) includes a first connecting surface (112155). An external circuit is connected to the auxiliary circuit of the relay (1121) by connecting to the first connecting surface (112155).

2. The relay (1121) as described in claim 1, characterized in that, The first connecting surface (112155) is a plane.

3. The relay (1121) as described in claim 1 or 2, characterized in that, The ceramic body (11218) has a first end face (1128) and a first side face (1129), the first end face (1128) and the first side face (1129) are arranged perpendicularly to each other, the main stationary contact (11217) is located on the first end face (1128), and the first connecting surface (112155) is located on the first side face (1129).

4. The relay (1121) as described in claim 2, characterized in that, The main stationary contact (11217) has a second connecting surface (112171), and the external circuit is connected to the second connecting surface (112171) to access the main circuit of the relay (1121). The first connecting surface (112155) and the second connecting surface (112171) are arranged perpendicularly.

5. The relay (1121) as described in any one of claims 1-4, characterized in that, The relay (1121) further includes a coil (11212) and a coil frame (112116). The coil frame (112116) is provided with a winding portion (112111), and the coil (11212) is wound around the winding portion (112111). The ceramic body (11218) has a first end face (1128) and a second end face (11281). The main stationary contact (11217) is located on the first end face (1128), and the coil frame (112116) is at least partially located on the second end face (11281). The first connecting terminal (11215) is disposed on the coil frame (112116).

6. The relay (1121) as described in claim 5, characterized in that, The coil frame (112116) further includes a first end wall (112117) and a first support portion (112112). Along a first direction (X), the first end wall (112117) is connected to one end of the winding portion (112111) along the first direction (X), the first support portion (112112) is connected to the first end wall (112117) and protrudes from the edge of the first end wall (112117), and the first connecting terminal (11215) is disposed on the first support portion (112112). The first direction (X) is the axial direction of the winding portion (112111).

7. The relay (1121) as claimed in claim 6, characterized in that, The first support portion (112112) is connected to the edge of the first end wall (112117) and extends along the first direction (X) toward the side away from the coil (11212).

8. The relay (1121) as claimed in claim 3, characterized in that, The first conductive component (11214) includes a first connecting segment (112141) and a second connecting segment (112142). The first connecting segment (112141) is disposed on the first end face (1128) of the ceramic body (11218) and electrically connected to the auxiliary stationary contact (11213). The second connecting segment (112142) is disposed on the first side face (1129) of the ceramic body (11218) and electrically connected to the first connecting segment (112141) and the first connecting terminal (11215).

9. The relay (1121) as claimed in claim 1, characterized in that, The first conductive component (11214) includes an insulator and a conductor, wherein the conductor is at least partially embedded in the insulator.

10. The relay (1121) as claimed in claim 3, characterized in that, The first conductive component (11214) is a PCB board.

11. The relay (1121) as claimed in claim 6, characterized in that, The first connecting terminal (11215) includes a first connecting part (112151), a first intermediate part (112152), and a first adapter part (112153). The first connecting part (112151) and the first adapter part (112153) are both connected to the first intermediate part (112152). The first intermediate part (112152) is connected to the first support part (112112). The first adapter part (112153) is electrically connected to the first conductive component (11214).

12. The relay (1121) as claimed in claim 1, characterized in that, The first connecting terminal (11215) is also provided with a threaded structure (112156), which is provided on the first connecting surface (112155) in a direction perpendicular to the first connecting surface (112155).

13. The relay (1121) as claimed in claim 12, characterized in that, The threaded structure (112156) is a nut, and the first connecting terminal (11215) is also provided with a first connecting hole (112154) that penetrates the first connecting surface (112155). The nut is provided corresponding to the first connecting hole (112154) and is located on the side of the first connecting terminal (11215) away from the first connecting surface (112155).

14. The relay (1121) as claimed in claim 13, characterized in that, The relay (1121) further includes a coil (11212) and a coil frame (112116). The coil (11212) is connected to the coil frame (112116). The coil frame (112116) has a first support portion (112112). The first connecting terminal (11215) is disposed on the first support portion (112112). The first support portion (112112) has an assembly groove (112115). A through hole is formed on the first support portion (112112) corresponding to the first connecting hole (112154). The nut is disposed in the assembly groove (112115).

15. The relay (1121) as claimed in claim 5, characterized in that, The relay (1121) further includes a yoke (11211) with a receiving groove (112113), and the coil frame (112116) is at least partially installed in the receiving groove (112113) of the yoke (11211). The coil frame (112116) includes a winding portion (112111) for winding the coil (11212), and the coil frame (112116) also has a first end wall (112117) along a first direction (X), the first end wall (112117) being located on the winding portion. The first end wall (112117) is located in the receiving groove (112113) on one side of the wire portion (112111) and connected to one end of the winding portion (112111) along the first direction (X). The winding portion (112111) and the first end wall (112117) are both located in the receiving groove (112113). The first direction (X) is the axial direction of the winding portion (112111). The first connecting terminal (11215) is embedded in the first end wall (112117). The first connecting surface (112155) is located outside the receiving groove (112113).

16. The relay (1121) as claimed in claim 15, characterized in that, The first connecting surface (112155) is provided with a first connecting hole (112154), and the first connecting surface (112155) is connected to an external circuit through the first connecting hole (112154). The extension line of the central axis of the first connecting hole (112154) does not interfere with the yoke (11211).

17. The relay (1121) as claimed in claim 15, characterized in that, The relay (1121) further includes a coil (11212) and a second connection terminal (11216) electrically connected to the coil (11212), the second connection terminal (11216) having a third connection surface (112165).

18. The relay (1121) as claimed in claim 17, characterized in that, The coil frame (112116) further includes a second end wall (112118) and a second support portion (112114). Along a first direction (X), the second end wall (112118) is connected to the other end of the winding portion (112111) along the first direction (X) and is disposed opposite to the first end wall (112117). The second support portion (112114) is connected to the second end wall (112118) and protrudes from the edge of the second end wall (112118). The second connecting terminal (11216) is disposed on the second support portion (112114). The first direction (X) is the axial direction of the winding portion (112111).

19. An electronic control device (1120), characterized in that, The electronic control device (1120) includes the relay (1121) as described in claims 1-18, and the electronic control device (1120) further includes: The second conductive component (1122) has a fourth connecting surface (112212), which is connected to the first connecting surface (112155) to realize the electrical connection between the first connecting terminal (11215) and the second conductive component (1122).

20. The electronic control device (1120) as described in claim 19, characterized in that, Both the first connecting surface (112155) and the fourth connecting surface (112212) are planar.

21. The electronic control device (1120) as described in claim 20, characterized in that, The first connecting surface (112155) and the fourth connecting surface (112212) are bolted or welded.

22. The electronic control device (1120) as described in claim 21, characterized in that, The electronic control device (1120) further includes a first locking assembly (1123), which is connected to the first connecting terminal (11215) and the second conductive component (1122) at the positions of the first connecting surface (112155) and the fourth connecting surface (112212), respectively.

23. The electronic control device (1120) as described in claim 19, characterized in that, The electronic control device (1120) also includes a support base (1124), which is connected to the second conductive component (1122).

24. The electronic control device (1120) as described in claim 19, characterized in that, The ceramic body (11218) has a first end face (1128) and a first side face (1129). The main stationary contact (11217) is located on the first end face (1128). Along the direction perpendicular to the first side face (1129), the first connecting terminal (11215) and the second conductive component (1122) are both located in the direction of the first side face (1129).

25. An electronic control device (1120), characterized in that, The electrical control device (1120) includes the relay (1121) as described in claim 17 or 18. The electrical control device (1120) further includes a second conductive component (1122), a first locking assembly (1123), and a second locking assembly (1125). The second conductive component (1122) has a fourth connecting surface (112212) and a fifth connecting surface (112232). The fourth connecting surface (112212) is connected to the first connecting surface (112155) to achieve electrical connection between the first connecting terminal (11215) and the second conductive component (1122). The first locking assembly (1123) is connected to the first connecting surface (112155) to achieve electrical connection between the first connecting terminal (11215) and the second conductive component (1122). The first connecting surface (112155) and the fourth connecting surface (112212) are respectively connected to the first connecting terminal (11215) and the second conductive component (1122); the fifth connecting surface (112232) is connected to the third connecting surface (112165) to realize the electrical connection between the second connecting terminal (11216) and the second conductive component (1122), and the second locking assembly (1125) is respectively connected to the second connecting terminal (11216) and the second conductive component (1122) at the positions of the fifth connecting surface (112232) and the fourth connecting surface (112212).

26. A battery device (1100), characterized in that, It includes a battery cell assembly (1110) and a relay (1121) as claimed in any one of claims 1-18 or an electronic control device (1120) as claimed in any one of claims 17-25, wherein the battery cell assembly (1110) is electrically connected to the relay (1121) or the electronic control device (1120).

27. An electrical appliance, characterized in that, Includes the electronic control device (1120) as described in any one of claims 17-25 and the battery device (1100) as described in claim 26, wherein the battery device (1100) is used to store or provide electrical energy.

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