Plug-in assembly, battery device and electric equipment

Abstract

The utility model discloses a plug-in assembly, a battery device and electric equipment. The plug-in assembly comprises a first plug-in piece and a second plug-in piece. The first plug connector comprises a first insulating part, and a main connecting pin and a pair of detection pins which are arranged on the plug surface of the first insulating part at intervals. The second plug connector comprises a second insulating part, and a main connecting seat and a pair of detection seats which are arranged on the second insulating part at intervals. Wherein the main connecting pin is configured to be inserted into the main connecting seat and form circuit connection. The first ends of the pair of detection pins are electrically connected with each other, and the second ends are configured to be respectively inserted into the corresponding detection seats. The height of the main connecting pin protruding out of the plugging surface is larger than the height of the detection pin protruding out of the plugging surface, and the pair of detection seats is configured to be connected with the detection circuit and used for representing the electrical connection stability of the main connecting pin and the main connecting seat through the on-off state of the detection circuit. According to the technical scheme, the stability of the battery device in the operation process can be improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a plug-in assembly, a battery device, and an electrical device. Background Art

[0002] With the development of new energy technology, batteries are used more and more widely, such as in mobile phones, laptops, electric vehicles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric tools, etc.

[0003] Currently, connectors are required to connect wires and electrical components in battery devices. However, unstable connection of the connectors may cause malfunctions during operation of the battery device. Therefore, a quick test of the connection stability of the connectors is required. Utility Model Content

[0004] In view of the above problems, the present application provides a plug-in assembly, a battery device and an electrical device, which can test the connection stability of the plug-in assembly in the battery device, thereby improving the stability of the battery device during operation.

[0005] In the first aspect, the present application provides a plug-in assembly comprising a first plug-in connector and a second plug-in connector. The first plug-in connector comprises a first insulating portion and a main connecting pin and a pair of detection pins spaced apart on the plug-in surface of the first insulating portion. The second plug-in connector comprises a second insulating portion and a main connecting seat and a pair of detection seats spaced apart on the second insulating portion. The main connecting pin is configured to be inserted into the main connecting seat and form a circuit connection. The first ends of a pair of detection pins are electrically connected to each other, and the second ends are configured to be respectively inserted into corresponding detection seats. The height of the main connecting pin protruding from the plug-in surface is greater than the height of the detection pin protruding from the plug-in surface, and the pair of detection seats are configured to be connected to a detection circuit, and are used to characterize the electrical connection stability between the main connecting pin and the main connecting seat by the on-off state of the detection circuit.

[0006] In the technical solution of the embodiments of the present application, a first connector and a second connector are provided, each for connecting to a wire or electrical component in the battery device. By interconnecting the first and second connectors, the wires can be connected to the electrical components. A detection pin and a detection socket are provided, and connected to a detection circuit to monitor the stability of the electrical connection between the main connection pin and the main connection socket. When the main connection pin and the main connection socket are in poor contact or loose, the on / off state of the detection circuit changes, promptly issuing a signal to alert the user to inspection and repair, thereby improving the reliability and safety of the plug assembly. The main connection pin protrudes higher than the detection pin, so during the plug-in process, the main connection pin contacts the main connection socket first, followed by the detection pin. This plug-in sequence ensures that the main circuit is established before the detection circuit begins operation. The stability of the main circuit connection can be determined by determining the on / off state of the detection circuit. Furthermore, interference from the detection circuit on the main circuit connection process is reduced, improving the accuracy and stability of the plug-in. Therefore, plug-in assemblies that pass the detection circuit can eliminate faults such as improper insertion, thereby improving the stability of the battery device during operation.

[0007] In some embodiments, the first insulating part includes an insulating substrate and a protective structure. The insulating substrate has a plug-in surface facing the second connector, and the main connecting pin and a pair of detection pins are fixedly arranged on the plug-in surface. The protective structure is formed by vertically extending from the periphery of the insulating substrate, and the protective structure is arranged around the main connecting pin and the detection pin. The insulating substrate and the protective structure jointly define a protective chamber for accommodating the main connecting pin and the detection pin. In the above structure, an insulating substrate is provided to provide a stable mounting substrate for the main connecting pin and the detection pin, and the main connecting pin and the detection pin are arranged on the same plug-in surface for easy connection and detection. The protective structure surrounds the main connecting pin and the detection pin, increases the creepage distance, and improves the insulation safety performance.

[0008] In some embodiments, the detection pin includes a first section embedded in the insulating substrate and a second section protruding from the plug-in surface. The first connector also includes a bridging conductor embedded in the insulating substrate and electrically connecting the first sections of the two detection pins. In the above structure, the first section of the detection pin is connected to the detection socket, and the second section of the detection link pin is disposed within the insulating substrate and electrically connected to each other, facilitating connection to the detection circuit and forming a loop.

[0009] In some embodiments, the first insulating part includes an insulating substrate and a protective structure. The insulating substrate has a plug-in surface facing the second connector, and the main connecting pin is arranged on the plug-in surface. The protective structure is formed by vertically extending from the periphery of the insulating substrate, and the protective structure is arranged around the main connecting pin. A mounting groove is provided on the protective structure, and the mounting groove includes two first parts extending along the plug-in and pull-out direction and a second part connecting the two first parts. The detection needle includes conductive posts connected to each other and a needle connected to the conductive posts. The conductive posts are provided in the first part, and the needle protrudes from the plug-in surface. The detection needle also includes a connecting section provided in the second part, and the two ends of the connecting section are respectively connected to the two conductive posts. In the above structure, by providing the mounting groove in the protective structure, the detection needle is detachably connected to the first insulating part, which facilitates the removal of the detection needle from the first insulating part after the detection is completed, thereby reducing the weight of the first connector and improving the energy density of the battery device.

[0010] In some embodiments, the first and second connectors are positioned relative to each other along the insertion and removal direction, and a pair of detection pins are symmetrically located on either side of the main connection pin, with the connection direction between the detection pins and the main connection pin being perpendicular to the insertion and removal direction. In this configuration, positioning the detection pins on either side of the main connection pin facilitates connection between the detection circuit and the detection pins, thereby improving detection efficiency.

[0011] In some embodiments, there are multiple main connecting pins, which are arranged in an array on the plug-in surface. In the above structure, the provision of multiple main connecting pins improves the connection strength and increases the current capacity of the plug-in connector.

[0012] In some embodiments, the second insulating portion includes an insulating base and a main connection slot. The insulating base has a connection surface opposite the insertion surface, and the main connection slot is formed on the connection surface and is used to accommodate the main connection base. In the above structure, the provision of the insulating base forms the main connection slot to secure the main connection base, thereby improving the accuracy of the main connection base installation position.

[0013] In some embodiments, the main connection seat includes an elastic contact assembly disposed in the main connection groove, and the elastic contact assembly includes a fixed frame and an elastic contact piece. The fixed frame is embedded in the main connection groove and has a plug-in opening facing the plug-in surface. The elastic contact piece is disposed in the plug-in opening and has a contact portion bent into the fixed frame. The elastic contact assembly is used to form an elastic crimping contact with the main connection pin. The contact portion of the elastic contact piece is configured to generate elastic deformation during the plug-in process to maintain a stable electrical connection with the main connection pin. In the above structure, the connection stability between the main connection pin and the main connection seat is improved by providing the elastic contact assembly.

[0014] In some embodiments, the detection socket includes an insulating housing and an elastic contact assembly. The insulating housing is fixedly connected to the insulating base, and the elastic contact assembly is disposed within the insulating housing. The elastic contact assembly is configured to form an elastic crimping contact with a corresponding detection pin. In the above structure, the provision of the insulating housing increases the insulation stability of the detection socket, and the provision of the elastic contact assembly within the insulating housing improves the connection stability between the detection pin and the detection socket, thereby improving the accuracy and efficiency of detection.

[0015] In some embodiments, the insulating base is provided with a guide groove on its outer side, and the insulating housing is detachably connected to the insulating base via the guide groove. In the above structure, the guide groove provides a detachable connection between the detection base and the second insulating portion, facilitating removal of the detection base from the second insulating portion after testing is complete, thereby reducing the weight of the second connector and improving the energy density of the battery device.

[0016] In a second aspect, the present application provides a battery device comprising the plug-in assembly in the above embodiment.

[0017] In some embodiments, the battery device also includes a connection detection system, which is used to simultaneously detect the connection stability of multiple plug-in components. The connection detection system includes a series wire and a loop detection device. The series wire is used to connect multiple detection sockets in series in sequence. The loop detection device is connected to both ends of the series wire. When the main connection pins of all plug-in components are fully plugged into the main connection sockets, the series detection circuit is turned on. When the main connection pins of any plug-in component are not fully plugged in, the series detection circuit is disconnected. In the above structure, by setting a series wire to connect multiple plug-in components in series, multiple plug-in components can be detected at the same time, thereby improving the efficiency of detection.

[0018] In a third aspect, the present application provides an electrical device, which includes the battery device in the above embodiment, and the battery device is used to provide electrical energy.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0021] Figure 1 A schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0022] Figure 2 A schematic structural diagram of a battery device provided in some embodiments of the present application;

[0023] Figure 3 A schematic structural diagram of a first connector provided in some embodiments of the present application;

[0024] Figure 4 A schematic structural diagram of a second connector provided in some embodiments of the present application;

[0025] Figure 5 A schematic structural diagram of a first connector provided in some other embodiments of the present application;

[0026] Figure 6 A schematic diagram of the structure of a detection needle provided in some embodiments of the present application;

[0027] Figure 7 A schematic structural diagram of an elastic contact assembly provided in some embodiments of the present application;

[0028] Figure 8 A schematic diagram of the structure of a connection detection system provided in some embodiments of the present application.

[0029] Detailed description of reference numerals:

[0030] 1. Vehicle; 2. Battery device; 3. Controller; 4. Motor; 5. Housing; 5a. First housing portion; 5b. Second housing portion; 5c. Accommodation space; 6. Battery cell; 7. Connector assembly; 701. First connector; 702. Second connector; 703. First insulating portion; 704. Connecting surface; 705. Main connecting pin; 706. Detection pin; 707. Insulating substrate; 708. Enclosure; 709. First section; 710. Second section; 711. Bridge conductor; 7 12. Mounting slot; 713. First part; 714. Second part; 715. Conductive column; 716. Needle; 717. Connecting section; 718. Insulating base; 719. Main connecting slot; 720. Connecting surface; 721. Elastic contact assembly; 722. Fixing frame; 723. Elastic contact piece; 724. Plug-in opening; 725. Insulating shell; 726. Second insulating part; 8. Connection detection system; 801. Series conductor; 802. Loop detection device; X. Insertion and removal direction. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0033] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0034] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0036] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0037] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0038] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0039] In this application, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0040] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0041] In the embodiments of this application, "parallel" includes not only absolute parallelism but also approximately parallelism as commonly understood in engineering practice. Similarly, "perpendicular" also includes not only absolute perpendicularity but also approximately perpendicularity as commonly understood in engineering practice. For example, if the angle between two directions is 85°-95°, they are considered perpendicular; if the angle between two directions is 0°-5°, they are considered parallel.

[0042] The term "plurality" used in this application refers to two or more (including two).

[0043] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0044] The battery cells can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc., which are not limited in the embodiments of the present application.

[0045] A battery cell typically includes an electrode assembly. This assembly consists of a positive electrode, a negative electrode, and a separator, which is positioned between the positive and negative electrodes. During the charge and discharge process of a battery cell, active ions (such as lithium ions) are inserted and removed between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits while allowing the active ions to pass through.

[0046] In some embodiments, a battery cell may include an outer shell. This outer shell may be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell), or an aluminum-plastic film. In some embodiments, the outer shell may be sealed or non-sealed. For example, in a non-sealed outer shell, the outer shell protects the electrode assembly and includes a sealing bag between the outer shell and the electrode assembly, which encapsulates the electrode assembly and electrolyte. Specifically, the sealing bag may be a bag-shaped insulating member or an aluminum-plastic film. In a sealed outer shell, the outer shell encapsulates the electrode assembly, electrolyte, and other components.

[0047] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, and a polygonal battery. The polygonal battery is, for example, a hexagonal battery, etc. There is no special limitation in this application.

[0048] In some embodiments, the housing includes an end cap and a shell, wherein the shell has an opening and the end cap covers the opening. The shell may have one or more openings. One or more end caps may also be provided.

[0049] In some embodiments, the housing is provided with at least one electrode terminal, which is electrically connected to the tab. The electrode terminal may be directly connected to the tab or indirectly connected to the tab via a current collecting member. The electrode terminal may be provided on an end cap or on the housing.

[0050] In battery systems, the wiring harness connects the wires and electrical components via male and female terminals. This process can easily lead to defects such as loose connections. These defects cannot be detected during static testing on the production line. During transportation or while the vehicle is in motion, poorly connected components can become disconnected, resulting in electrical failure. This can even cause the vehicle to stall at high speeds, posing a safety risk. Therefore, it is necessary to detect and eliminate these loose connections.

[0051] In view of this, the present application provides a plug-in assembly, which is provided with a detection pin and a detection socket, and is connected to a detection circuit, which can monitor the electrical connection stability between the main connection pin and the main connection socket. When the main connection pin and the main connection socket are in poor contact or loose, the on-off state of the detection circuit will change, thereby sending a signal in time to remind the user to check and repair, thereby improving the reliability and safety of the plug-in assembly. The protruding height of the main connection pin is greater than that of the detection pin. During the plug-in process, the main connection pin first contacts the main connection socket, and the detection pin contacts the detection socket later. This plug-in sequence ensures that the main circuit has been established before the detection circuit starts working, and the connection stability of the main circuit can be determined by judging the on-off state of the detection circuit. In addition, the interference of the detection circuit on the main circuit connection process is reduced, and the accuracy and stability of the plug-in are improved. Therefore, a plug-in assembly that has passed the detection circuit detection can eliminate faults such as false insertion and improve the stability of the battery device operation process.

[0052] The battery device mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, parallel, or hybrid via a busbar.

[0053] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0054] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells with a cable tie.

[0055] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are housed in the case.

[0056] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box by fixing the battery module in the box.

[0057] As an example, the battery cell assembly may also be housed in the box by directly fixing the plurality of battery cells to the box.

[0058] As an example, the box body may include a first box body and a second box body. The first box body and the second box body are buckled together to form a closed space inside the box body to accommodate the battery cell assembly.

[0059] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0060] The technical solutions described in the embodiments of the present application are applicable to various electrical devices that use battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0061] Electrical devices may include vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools, etc. Vehicles may include fuel vehicles, gas vehicles, or new energy vehicles. New energy vehicles may include pure electric vehicles, hybrid vehicles, or extended-range vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0062] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device.

[0063] Figure 1 A schematic structural diagram of a vehicle provided for some embodiments of the present application.

[0064] As shown in FIG1 , a battery device 2 is provided inside a vehicle 1 , and the battery device 2 can be provided at the bottom, head, or tail of the vehicle 1 . The battery device 2 can be used to power the vehicle 1 , for example, the battery device 2 can serve as an operating power source for the vehicle 1 .

[0065] The vehicle 1 may further include a controller 3 and a motor 4 . The controller 3 is used to control the battery device 2 to supply power to the motor 4 , for example, to meet the power requirements of starting, navigating, and driving the vehicle 1 .

[0066] In some embodiments of the present application, the battery device 2 can not only serve as the operating power source of the vehicle 1, but also serve as the driving power source of the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0067] Figure 2 Schematic diagram of the explosion of the battery provided in some embodiments of the present application. Figure 2 As shown, the battery device 2 includes a housing 5 and a battery cell, wherein the battery cell is accommodated in the housing 5. The battery cell may be the smallest unit constituting a battery.

[0068] The housing 5 is used to house the battery cells and can have various structures. In some embodiments, the housing 5 may include a first housing portion 5a and a second housing portion 5b. The first housing portion 5a and the second housing portion 5b overlap each other and together define a storage space 5c for the battery cells 6. The second housing portion 5b may be a hollow structure with one end open. The first housing portion 5a is a plate-like structure, and the first housing portion 5a overlaps the open side of the second housing portion 5b to form the housing 5 with the storage space 5c. Alternatively, both the first housing portion 5a and the second housing portion 5b may be hollow structures with one end open, with the open side of the first housing portion 5a overlapping the open side of the second housing portion 5b to form the housing 5 with the storage space 5c. Of course, the first housing portion 5a and the second housing portion 5b may have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0069] In the battery device 2 , there can be one or more battery cells. If there are multiple battery cells, the multiple battery cells can be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells are connected in both series and parallel.

[0070] Multiple battery cells can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells can be accommodated in the box 5; of course, multiple battery cells can also be first connected in series, in parallel, or in a mixed connection to form a battery module, and then the multiple battery modules can be connected in series, in parallel, or in a mixed connection to form a whole and accommodated in the box 5.

[0071] The battery device 2 may also include electrical components, many of which require electrical connections using plug-in assemblies to ensure the proper and safe operation of the battery pack. For example, the battery management system (BMS) needs to monitor the voltage, temperature, and other parameters of each battery cell in the battery pack in real time to ensure battery safety and performance. The plug-in assemblies connect the BMS's signal acquisition lines to the sensors on the battery module and transmit the acquired signals to the BMS mainboard. For example, the voltage acquisition lines connected via the plug-in assemblies can accurately measure the voltage of each battery cell. If a cell voltage is abnormal, the BMS can take timely action, such as disconnecting the circuit, to prevent overcharging or over-discharging. The BMS also needs to send control signals to other components in the battery device, such as controlling the charging and discharging of the battery cells. The plug-in assemblies connect the BMS's control signal output terminals to relevant actuators, such as relays and contactors. If the BMS detects low battery charge or a fault, it can send a signal via the plug-in assemblies to disconnect the battery from external loads, protecting the battery and the device. Furthermore, the battery pack also needs to communicate with external devices to transmit battery cell status information, such as charge level, temperature, and fault codes. A plug-in connector connects the battery pack's low-voltage communication interface with the external device's communication interface, enabling bidirectional data transmission. For example, using a CAN bus communication connector, the battery pack can transmit its status information to the vehicle's control unit, allowing the vehicle to monitor the battery pack's status in real time and implement appropriate controls and adjustments.

[0072] Please refer to Figures 3 to 5 , Figure 3 This is a schematic structural diagram of a first connector provided in some embodiments of the present application. Figure 4 This is a schematic structural diagram of a second connector provided in some embodiments of the present application. Figure 5 This is a schematic structural diagram of the first connector provided in some other embodiments of the present application.

[0073] As shown in the figure, an embodiment of the present application provides a plug-in assembly 7, comprising a first plug-in connector 701 and a second plug-in connector 702. The first plug-in connector 701 comprises a first insulating portion 703, a main connecting pin 705 spaced apart on the plug-in surface 704 of the first insulating portion 703, and a pair of detection pins 706. The second plug-in connector 702 comprises a second insulating portion 726, a main connecting socket spaced apart on the second insulating portion 726, and a pair of detection sockets. The main connecting pin 705 is configured to be inserted into the main connecting socket and form a circuit connection. The first ends of the pair of detection pins 706 are electrically connected to each other, and the second ends are configured to be inserted into corresponding detection sockets, respectively. The height of the main connecting pin 705 protruding from the plug-in surface 704 is greater than the height of the detection pin 706 protruding from the plug-in surface 704. The pair of detection sockets are configured to be connected to a detection circuit and used to characterize the stability of the electrical connection between the main connecting pin 705 and the main connecting socket by detecting the on / off state of the detection circuit.

[0074] The first insulating portion 703 serves as the main support structure for the first connector 701, providing insulation and protection for the internal components. A main connecting pin 705 and a pair of test pins 706 are spaced apart on the plugging surface 704 of the first insulating portion 703. The main connecting pin 705 is used to achieve the primary circuit connection function, while the test pins 706 are used to detect the stability of the electrical connection between the main connecting pin 705 and the main connector.

[0075] Second insulating portion 726 serves as the main support structure for second connector 702, also providing insulation and protection for internal components. A main connector and a pair of detection sockets are spaced apart on second insulating portion 726. The main connector and the main connector pins 705 form a circuit connection, while the detection sockets are connected to a detection circuit to detect the connection between the main connector pins 705 and the main connector.

[0076] The main connecting pin 705 is inserted into the main connecting socket to establish a circuit connection, realizing the primary electrical function of the plug assembly 7. The first ends of a pair of detection pins 706 are electrically connected to each other, and the second ends are inserted into corresponding detection sockets. The detection sockets are connected to a detection circuit, and the on / off state of the detection circuit is used to determine whether the electrical connection between the main connecting pin 705 and the main connecting socket is stable.

[0077] The height of the main connecting pin 705 protruding from the plug-in surface 704 is greater than the height of the detection pin 706 protruding from the plug-in surface 704. For example, the protruding length of the main connecting pin 705 is 10 mm, and the protruding height of the detection pin 706 is 6 mm, resulting in a height difference of 4 mm. In order to insert the detection pin 706 into the detection socket, the main connecting pin 705 needs to be inserted at least 4 mm into the main connecting socket.

[0078] This design ensures that during the plugging process, the main connection pin 705 contacts the main connection socket first, and the detection pin 706 contacts the detection socket later, ensuring that the main circuit has been basically connected before the detection circuit starts working, avoiding unstable main circuit connection due to the influence of the detection circuit.

[0079] The design of the main connection pin 705 protruding higher than the detection pin 706 ensures that during the plug-in process, the main connection pin 705 contacts the main connection socket first, and the detection pin 706 contacts the detection socket later. This plug-in sequence ensures that the main circuit has established a stable connection before the detection circuit is connected. In other words, as long as the detection circuit is connected normally, the main circuit connection is intact. Therefore, by testing the connection of the detection circuit, it can be determined whether the main circuit has achieved a stable connection. In addition, the above structure also avoids interference of the detection circuit with the main circuit connection process, improving the accuracy and stability of the plug-in. By providing the detection pin 706 and the detection socket and connecting the detection circuit, the electrical connection stability between the main connection pin 705 and the main connection socket can be monitored in real time. If the main connection pin 705 is in poor contact with the main connection socket or becomes loose, the on / off state of the detection circuit will change, thereby issuing a timely signal to remind the user to inspect and repair it, thereby improving the reliability and safety of the plug-in assembly 7.

[0080] In the technical solution of the embodiment of the present application, a first connector 701 and a second connector 702 are provided, each for connecting to a wire or electrical component in the battery device 2. By interconnecting the first connector 701 and the second connector 702, the wire can be connected to the electrical component. A detection pin 706 and a detection socket are provided, and a detection circuit is connected to monitor the stability of the electrical connection between the main connection pin 705 and the main connection socket. When the main connection pin 705 is in poor contact with the main connection socket or becomes loose, the on / off state of the detection circuit will change, thereby sending a signal in a timely manner to remind the user to inspect and repair, thereby improving the reliability and safety of the plug assembly 7. The main connection pin 705 is designed to protrude higher than the detection pin 706. During the plugging process, the main connection pin 705 contacts the main connection socket first, and the detection pin 706 contacts the detection socket later. This plugging sequence ensures that the main circuit is established before the detection circuit begins operation, avoiding interference with the main circuit connection process by the detection circuit, and improving the accuracy and stability of the plugging. Therefore, by detecting qualified plug-in components 7 through the detection circuit, faults such as false insertion can be eliminated, thereby improving the stability of the battery device 2 during operation.

[0081] In some embodiments of the present application, the first insulating portion 703 includes an insulating substrate 707 and a protective structure 708. The insulating substrate 707 has a plug-in surface 704 facing the second connector 702, and a main connecting pin 705 and a pair of detection pins 706 are fixedly disposed on the plug-in surface 704. The protective structure 708 extends vertically from the periphery of the insulating substrate 707 and surrounds the main connecting pin 705 and the detection pin 706. The insulating substrate 707 and the protective structure 708 together define a protective chamber for accommodating the main connecting pin 705 and the detection pin 706.

[0082] The insulating substrate 707 serves as a basic supporting component and has a plug-in surface 704 facing the second connector 702, providing a fixed installation position for the main connecting pin 705 and the detection pin 706, ensuring that these needle-shaped components can be accurately arranged according to design requirements so as to achieve reliable connection with the corresponding components on the second connector 702.

[0083] The enclosure structure 708 is formed by vertically extending from the periphery of the insulating substrate 707. This vertical extension design enables the enclosure structure 708 to tightly surround the edge of the insulating substrate 707 to form a relatively independent space.

[0084] The insulating substrate 707 and the enclosure structure 708 are both made of insulating materials, which can effectively isolate the main connecting pin 705 and the detection pin 706 from the conductive components in the surrounding environment, prevent electrical faults such as short circuits caused by accidental contact, and ensure the safety and stability of the plug-in component 7 during the electrical connection process.

[0085] The protective structure 708 serves as a positioning and guiding mechanism during the plugging process. When the first connector 701 is plugged into the second connector 702, the protective structure 708 guides the second connector 702 accurately into the protective chamber, allowing the primary connection pin 705 to smoothly insert into the primary connection socket and the detection pin 706 to accurately insert into the detection socket, thereby improving the accuracy and efficiency of the plugging.

[0086] Optionally, the insulating substrate 707 and the enclosure structure 708 are integrally formed using the same material, for example, polymer resin, plastic, and the like.

[0087] In the above structure, an insulating substrate 707 provides a stable mounting base for the main connecting pins 705 and the test pins 706. The main connecting pins 705 and the test pins 706 are also located on the same plug-in surface 704, facilitating connection and testing. A protective structure surrounds the main connecting pins 705 and the test pins 706, increasing creepage distance and improving insulation safety.

[0088] In some embodiments of the present application, the detection needle 706 includes a first section 709 embedded in the insulating substrate 707 and a second section 710 protruding from the plug-in surface 704. The first connector 701 also includes a bridging conductor 711, which is buried in the insulating substrate 707 and electrically connects the first sections 709 of the two detection needles 706.

[0089] The detection pin 706 consists of a first section 709 embedded in the insulating substrate 707 and a second section 710 protruding from the plugging surface 704. The first section 709 embedded in the insulating substrate 707 primarily serves as a fixation and internal connection, ensuring the stability of the detection pin 706 on the insulating substrate 707; the second section 710 protruding from the plugging surface 704 is used to plug into the detection socket on the second connector 702 to achieve an electrical connection.

[0090] A bridge conductor 711 is embedded within the insulating substrate 707 and electrically connects the first segments 709 of the two test pins 706. This bridge conductor 711 ensures electrical continuity between the two test pins 706 within the insulating substrate 707, forming a complete electrical circuit. When the second segments 710 of the test pins 706 are inserted into their corresponding test sockets, the entire detection circuit can determine the stability of the electrical connection between the main connection pin 705 and the main connection socket by detecting the continuity of this circuit.

[0091] Embedding the bridging conductor 711 within the insulating substrate 707 avoids the need for additional connection lines on the surface of the insulating substrate 707, simplifying the structure of the first connector 701. This not only reduces the number of process steps in the production process and lowers production costs, but also improves the reliability and stability of the product, reducing the risk of failure due to surface wiring damage or poor contact. For example, in the design of a traditional connector assembly 7, additional wires or connectors may be required to achieve an electrical connection between the two detection pins 706. These additional components not only increase the complexity of the product, but are also susceptible to damage during the plug-in process. Embedding the bridging conductor 711 can effectively avoid these problems.

[0092] Because the bridge conductor 711 is directly embedded within the insulating substrate 707 and tightly connected to the first section 709 of the detection pin 706, the impact of external interference on the detection circuit is reduced. During the detection process, the electrical connection status between the main connection pin 705 and the main connection socket can be more accurately reflected, improving the accuracy and reliability of the detection.

[0093] In the above structure, the first section 709 of the detection needle 706 is connected to the detection seat, and the second section 710 of the detection link needle is set in the insulating substrate 707 and electrically connected to each other, so as to facilitate connection with the detection circuit and form a loop.

[0094] like Figure 5 as well as Figure 6 As shown, in some embodiments of the present application, the first insulating portion 703 includes an insulating substrate 707 and a protective structure 708. The insulating substrate 707 has a plug-in surface 704 facing the second connector 702, and the main connecting pin 705 is disposed on the plug-in surface 704. The protective structure 708 extends vertically from the periphery of the insulating substrate 707 and surrounds the main connecting pin 705. The protective structure 708 is provided with a mounting groove 712. The mounting groove 712 includes two first portions 713 extending along the plug-in direction X and a second portion 714 connecting the two first portions 713. The detection needle 706 includes interconnected conductive posts 715 and a needle head 716 connected to the conductive posts 715. The conductive posts 715 are disposed on the first portion 713, and the needle head 716 protrudes from the plug-in surface 704. The detection needle 706 also includes a connecting section 717 disposed on the second portion 714. The two ends of the connecting section 717 are respectively connected to the two conductive posts 715.

[0095] The mounting slot 712 provided on the enclosure 708 consists of two first portions 713 extending along the insertion / removal direction X, and a second portion 714 connecting the two first portions 713. This "U"-shaped (or similar) mounting slot 712 design provides a specific spatial layout for the installation of the test pin 706. The two first portions 713 provide installation guidance and positioning for the main portions of the test pin 706, while the second portion 714 connects and secures the relevant portions of the two test pins 706, achieving a specific electrical connection.

[0096] The detection needle 706 is composed of a conductive column 715, a needle head 716 and a connecting section 717. The conductive column 715 is arranged in the first part 713 of the installation groove 712, and plays the main conductive and supporting role. It extends along the plug-in direction X, which is convenient for plugging and matching with the corresponding component on the second connector 702. The needle head 716 is connected to the conductive column 715 and protrudes from the plug-in surface 704. It is the part of the detection needle 706 that is in direct contact with the external detection seat and is responsible for achieving electrical connection. The connecting section 717 is arranged in the second part 714 of the installation groove 712, and the two conductive columns 715 are connected at both ends, so that the two detection needles 706 are electrically connected inside the installation groove 712 to form a complete detection circuit.

[0097] The two first portions 713 of the mounting slot 712 extend along the insertion and removal direction X, providing precise positioning and guidance for the conductive post 715. During the insertion process, the conductive post 715 can slide smoothly along the mounting slot 712, ensuring that the needle 716 can be accurately inserted into the detection socket on the second connector 702. This improves the accuracy and efficiency of the insertion and reduces the risk of poor contact or damage caused by insertion deviation.

[0098] The design of mounting slot 712 facilitates the installation of detection pin 706. During production, the detection pin 706 is installed by simply inserting the conductive post 715 into the first portion 713 of the mounting slot 712 and then attaching the connecting section 717 to the second portion 714. During maintenance, if a problem with the detection pin 706 occurs, it can be repaired or replaced by disassembling the enclosure 708 or removing the detection pin 706 from the mounting slot 712. This relatively simple operation reduces maintenance costs and time.

[0099] In the above structure, by providing the mounting groove 712 in the enclosure structure, the detection needle 706 is detachably connected to the first insulating portion 703, so that the detection needle 706 can be removed from the first insulating portion 703 after the detection is completed, thereby reducing the weight of the first connector 701 and improving the energy density of the battery device 2.

[0100] In some embodiments of the present application, the first connector 701 and the second connector 702 are arranged opposite to each other along the plug-in direction X, a pair of detection pins 706 are symmetrically distributed on both sides of the main connecting pin 705, and the connection direction of the detection pin 706 and the main connecting pin 705 is perpendicular to the plug-in direction X.

[0101] In the above structure, the detection pin 706 is arranged on one side of the main connection pin 705, which can facilitate the connection between the detection circuit and the detection pin 706 and improve the detection efficiency.

[0102] In some embodiments of the present application, there are multiple main connecting pins 705 , and the multiple main connecting pins 705 are arranged in an array on the plug-in surface 704 .

[0103] Multiple main connecting pins 705 mean that there are more contact points when the connectors are connected. Each main connecting pin 705 forms contact with a corresponding contact portion (such as a pinhole or contact on another connector), and the multiple contact points work together to greatly increase the stability of the connection. Compared with a single or a small number of main connecting pins 705, multiple main connecting pins 705 can better disperse the external force applied during connection and reduce the possibility of loose connection due to external force. Multiple main connecting pins 705 participate in conduction at the same time, which is equivalent to expanding the conductive area of ​​the entire connector. When current passes through, the larger conductive area can reduce resistance and reduce heat. Reduced resistance can reduce the heat generated when current passes through, thereby improving the overcurrent capacity of the connector, enabling it to carry larger currents without overheating and damage.

[0104] During operation of the battery device 2, the plug assembly 7 may be subject to vibration and impact, such as in mobile devices and vehicles. The array arrangement of the multiple main connecting pins 705 allows the plug assembly 7 to share the external force when subjected to vibration and impact, reducing the pressure on a single main connecting pin 705, thereby reducing the risk of loose connection and ensuring connection reliability.

[0105] In the above structure, multiple main connection pins 705 are provided, which improves the connection strength and increases the current carrying capacity of the connector.

[0106] like Figure 4 As shown, in some embodiments of the present application, the second insulating portion 726 includes an insulating base 718 and a main connecting groove 719. The insulating base 718 has a connecting surface 720 opposite to the plug-in surface 704, and the main connecting groove 719 is formed on the connecting surface 720 for accommodating the main connecting base.

[0107] The second insulating portion 726 consists of an insulating base 718 and a main connection slot 719. This structural division clearly defines its components and functional modules. The insulating base 718 serves as the underlying support structure, providing a stable physical form and electrical isolation for the entire second insulating portion 726. The main connection slot 719 is the key structure for achieving specific connection functions. Formed on the insulating base 718, the two are tightly integrated and together complete the function of the second insulating portion 726 in the connector system.

[0108] The insulating base 718 has a connection surface 720 opposite the plugging surface 704. The exemplary connection surface 720 abuts against the plugging surface 704. The plugging surface 704 is typically the primary surface for the connector to connect with other components, while the connection surface 720 serves as the interface between the second insulating portion 726 and related components such as the main connector. The insulating base 718 is made of insulating material and provides electrical isolation, preventing direct contact between devices with different electrical potentials, avoiding electrical faults such as short circuits, and ensuring the electrical safety of the entire connector system.

[0109] The main connection groove 719 is formed in the connection surface 720 of the insulating base 718. It is a specific groove structure for accommodating the main connection socket. The shape, size, and depth of the main connection groove 719 are precisely designed according to the specifications and design requirements of the main connection socket to ensure that the main connection socket can be accurately and stably embedded therein. The cooperation between the main connection groove 719 and the main connection socket establishes a mechanical and electrical connection between the second insulating portion 726 and the main connection socket, providing a channel for the transmission of current and signals.

[0110] In the connector system, the second insulating portion 726 interacts with the first connector 701 and the main connecting pin 705. When the first connector 701 and the second connector 702 are positioned relative to each other along the insertion / removal direction X and connected, the main connecting pin 705 is inserted into the main connecting socket. The main connecting slot 719 of the second insulating portion 726 provides space for the main connecting socket, protecting it and providing a positioning function. Furthermore, the electrical isolation provided by the insulating base 718 ensures electrical safety between the main connecting pin 705 and other surrounding components, preventing current leakage and short circuits.

[0111] In the above structure, by providing the insulating base 718, the main connection groove 719 is formed to fix the main connection base, thereby improving the accuracy of the installation position of the main connection base.

[0112] like Figure 4 as well as Figure 7 As shown, in some embodiments of the present application, the main connection seat includes an elastic contact component 721 disposed in the main connection groove 719, and the elastic contact component 721 includes a fixed frame 722 and an elastic contact piece 723. The fixed frame 722 is embedded in the main connection groove 719 and has a plug opening 724 facing the plug surface 704. The elastic contact piece 723 is disposed in the plug opening 724 and has a contact portion bent inwardly toward the fixed frame 722. The elastic contact component 721 is used to form an elastic pressure-connected contact with the main connection pin 705. The contact portion of the elastic contact piece 723 is configured to generate elastic deformation during the plugging process to maintain a stable electrical connection with the main connection pin 705.

[0113] The elastic contact assembly 721 in the main connector is composed of a fixed frame 722 and an elastic contact piece 723. This combined structure rationally divides the functions of fixed support and elastic contact. The fixed frame 722 provides a stable mounting base for the entire assembly, and the elastic contact piece 723 is used for reliable electrical connection with the main connector pin 705.

[0114] The fixing frame 722 is embedded in the main connection groove 719. This embedding method ensures a tight connection between the elastic contact assembly 721 and the second insulating portion 726, improving the stability and reliability of the entire structure. Furthermore, the fixing frame 722 has a plug opening 724 facing the plug surface 704, providing a channel for the elastic contact piece 723 to contact the main connection pin 705.

[0115] When the main connecting pin 705 is inserted into the insertion opening 724, it comes into contact with the contact portion of the elastic contact piece 723. Because the contact portion is elastic, it elastically deforms during the insertion process. This elastic deformation allows the contact portion to fit tightly against the surface of the main connecting pin 705, forming a stable electrical connection. Even if the main connecting pin 705 experiences slight displacement or vibration after insertion, the elastic deformation of the elastic contact piece 723 automatically adjusts to maintain good contact with the main connecting pin 705.

[0116] The coordination of the elastic contact assembly 721 and the main connecting pin 705 is a key step in achieving electrical connection in the connector. During insertion and removal, the elastic contact piece 723 elastically deforms to accommodate the changing position of the main connecting pin 705, ensuring stable current transmission. This elastic pressure-bonded contact method offers greater resistance to vibration and shock than rigid contact, enhancing the connector's reliability in complex environments.

[0117] For example, the elastic contact piece 723 can be made of metal material, which has certain elasticity and structural strength, and strong conductive performance, and can improve the transmission stability of current.

[0118] In the above structure, the elastic contact assembly 721 is provided to improve the connection stability between the main connecting pin 705 and the main connecting socket.

[0119] In some embodiments of the present application, the detection base includes an insulating housing 725 and an elastic contact assembly 721. The insulating housing 725 is fixedly connected to the insulating base 718, and the elastic contact assembly 721 is disposed inside the insulating housing 725. The elastic contact assembly 721 is configured to form an elastic pressure contact with the corresponding detection pin 706.

[0120] The insulating housing 725 is fixedly connected to the insulating base 718. This connection can be achieved in a variety of ways. For example, a snap-fit ​​connection, adhesive connection, or bolt connection can be used. The snap-fit ​​connection offers the advantages of easy installation and disassembly, making it suitable for scenarios requiring frequent maintenance or replacement of the test socket. The adhesive connection offers a secure connection and good sealing, making it suitable for environments requiring high waterproofing and dustproofing. The bolt connection offers high connection strength and reliability, making it suitable for situations subject to significant external forces.

[0121] The fixed connection between the insulating housing 725 and the insulating base 718 provides a stable mounting foundation for the test socket. As part of the connector, the insulating base 718 provides electrical isolation and mechanical support for the entire detection system. The insulating housing 725, fixed to the insulating base 718, ensures the accurate positioning of the test socket within the connector, preventing displacement due to insertion or removal or other external forces, thereby ensuring reliable contact between the elastic contact assembly 721 and the detection pin 706.

[0122] The elastic contact component 721 is arranged inside the insulating shell 725, and it is usually made of elastic conductive materials, such as spring sheets, elastic contact fingers, etc. These elastic conductive materials have good elasticity and conductivity, can undergo elastic deformation when subjected to external force, and return to their original shape after the external force disappears. The layout of the elastic contact component 721 needs to correspond to the position of the detection needle 706. During the design, factors such as the insertion direction, insertion depth and contact area of ​​the detection needle 706 need to be considered to ensure that the elastic contact component 721 can accurately form elastic crimping contact with the detection needle 706. At the same time, in order to prevent the elastic contact component 721 from shaking or shifting in the insulating shell 725, a corresponding positioning structure, such as a positioning groove, a positioning column, etc., is usually provided in the insulating shell 725.

[0123] When the test needle 706 is inserted into the insulating housing 725, it comes into contact with the elastic contact assembly 721. Because the elastic contact assembly 721 is elastic, it deforms elastically under the pressure of the test needle 706, allowing it to fit tightly against the surface of the test needle 706. This elastic contact method can adapt to dimensional deviations and positional changes of the test needle 706, ensuring a stable electrical connection between the two. The elastic deformation of the elastic contact assembly 721 generates a certain amount of contact pressure, the magnitude of which directly affects the contact resistance. Generally speaking, the greater the contact pressure, the lower the contact resistance and the more stable the electrical connection. However, the contact pressure should not be too high, otherwise it will increase the insertion force and wear of the test needle 706, reducing the service life of the test socket. Therefore, when designing the elastic contact assembly 721, it is necessary to appropriately select the elastic modulus and shape of the elastic material to achieve an appropriate contact pressure.

[0124] The elastic contact component 721 needs to have good electrical conductivity to ensure stable transmission of the detection signal. Typically, the elastic contact component 721 is made of a metal material with good electrical conductivity, such as copper, silver, or gold. To improve electrical conductivity, the surface of the elastic contact component 721 may be plated with gold or silver.

[0125] The resilient contact formed between the elastic contact assembly 721 and the detection needle 706 ensures stable transmission of the detection signal. Due to the close contact and low contact resistance, signal attenuation and distortion can be reduced, improving the accuracy and reliability of the detection signal. The electrical isolation provided by the insulating housing 725 and the insulating base 718 effectively blocks the effects of external electromagnetic interference on the detection signal. Furthermore, the close contact of the elastic contact assembly 721 reduces noise interference during signal transmission, improving the quality of the detection signal.

[0126] In the above structure, the insulating shell 725 is provided to increase the insulation stability of the detection seat, and the elastic contact component 721 is provided in the insulating shell 725 to improve the connection stability between the detection needle 706 and the detection seat, thereby improving the detection accuracy and detection efficiency.

[0127] In some embodiments of the present application, a guide groove is provided on the outer side of the insulating base 718, and the insulating shell 725 is detachably connected to the insulating base 718 through the guide groove.

[0128] The guide groove provided on the outside of the insulating base 718 is a groove structure with a specific shape and size. Its shape is usually straight or curved with a certain curvature, and the depth and width are designed according to the size of the connection part of the insulating shell 725 to ensure that the insulating shell 725 can accurately and smoothly cooperate with it. The main function of the guide groove is to provide guidance for the connection between the insulating shell 725 and the insulating base 718. During the installation process, the operator can insert the insulating shell 725 along the direction of the guide groove so that the connection part of the insulating shell 725 can be quickly and accurately aligned with the corresponding part on the insulating base 718, avoiding problems such as misalignment and jamming caused by blind installation, and greatly improving installation efficiency and accuracy.

[0129] The insulating housing 725 is detachably connected to the insulating base 718 via the guide groove. This connection typically utilizes a mechanical structure such as a snap or plug-in connection. For example, the insulating housing 725 may be provided with a protrusion or a snap that matches the guide groove. When the insulating housing 725 is inserted into a certain position along the guide groove, the protrusion or snap engages with a corresponding structure on the insulating base 718, thereby achieving a fixed connection between the two.

[0130] The detachable connection allows the insulating housing 725 to be easily removed from the insulating base 718 upon completion of the testing process, in the event of a malfunction, damage, or when an upgrade is required. This eliminates the need for extensive disassembly of the entire connector, reducing maintenance costs and time. For example, after the test socket has completed factory testing, the insulating housing 725 can simply be removed from the insulating base 718. This is because once a stable and complete electrical connection between the main connecting pin 705 and the main connecting socket is confirmed, the test socket and test pin 706 can be removed, thereby reducing the number of parts in the plug assembly 7.

[0131] In the above structure, the detection seat is detachably connected to the second insulating portion 726 by providing a guide groove, which facilitates the removal of the detection seat from the second insulating portion 726 after the detection is completed, thereby reducing the weight of the second connector 702 and improving the energy density of the battery device 2.

[0132] In some optional embodiments, the battery device 2 includes a first connector 701 and a second connector 702. The first connector 701 includes a first insulating portion 703, a main connecting pin 705 spaced apart on the plugging surface 704 of the first insulating portion 703, and a pair of detection pins 706. The second connector 702 includes a second insulating portion 726, a main connecting socket spaced apart on the second insulating portion 726, and a pair of detection sockets. The main connecting pin 705 is configured to be inserted into the main connecting socket and form an electrical connection. The first ends of the pair of detection pins 706 are electrically connected to each other, and the second ends are configured to be inserted into corresponding detection sockets. The height of the main connecting pin 705 protruding from the plugging surface 704 is greater than the height of the detection pin 706 protruding from the plugging surface 704. The pair of detection sockets are configured to connect to a detection circuit to indicate the stability of the electrical connection between the main connecting pin 705 and the main connecting socket by detecting the on / off state of the detection circuit. The first insulating portion 703 includes an insulating substrate 707 and a protective structure 708. The insulating substrate 707 has a plug-in surface 704 facing the second connector 702. A main connecting pin 705 and a pair of detection pins 706 are fixedly mounted on the plug-in surface 704. The detection pin 706 includes a first section 709 embedded in the insulating substrate 707 and a second section 710 protruding from the plug-in surface 704. The first connector 701 also includes a bridging conductor 711 embedded within the insulating substrate 707 and electrically connecting the first sections 709 of the two detection pins 706. The second insulating portion 726 includes an insulating base 718 and a main connecting groove 719. The insulating base 718 has a connecting surface 720 opposite the plug-in surface 704. The main connecting groove 719 is formed in the connecting surface 720 and is used to accommodate the main connector. The main connector includes an elastic contact assembly 721 disposed within the main connecting groove 719. The elastic contact assembly 721 includes a fixing frame 722 and an elastic contact piece 723. The fixed frame 722 is embedded in the main connection groove 719 and has a plug-in opening 724 facing the plug-in surface 704. The elastic contact piece 723 is arranged in the plug-in opening 724 and has a contact portion bent into the fixed frame 722. The elastic contact component 721 is used to form an elastic crimping contact with the main connection pin 705. The contact portion of the elastic contact piece 723 is configured to generate elastic deformation during the plug-in process to maintain a stable electrical connection with the main connection pin 705. The detection seat includes an insulating shell 725 and an elastic contact component 721. The insulating shell 725 is fixedly connected to the insulating base 718, and the elastic contact component 721 is arranged inside the insulating shell 725. The elastic contact component 721 is configured to form an elastic crimping contact with the corresponding detection pin 706.

[0133] The embodiments of the present application also provide a battery device 2, which includes the plug assembly 7 of the above embodiment. The plug assembly 7 in the battery device 2 is provided with a first plug connector 701 and a second plug connector 702, which are respectively used to connect to the wires or electrical components in the battery device 2. By connecting the first plug connector 701 and the second plug connector 702 to each other, the wires can be connected to the electrical components. A detection pin 706 and a detection socket are provided, and a detection circuit is connected to monitor the stability of the electrical connection between the main connection pin 705 and the main connection socket. When the main connection pin 705 is in poor contact with the main connection socket or becomes loose, the on-off state of the detection circuit will change, thereby sending a signal in time to remind the user to check and repair, thereby improving the reliability and safety of the plug assembly 7. The design of the main connection pin 705 protruding higher than the detection pin 706 means that during the plugging process, the main connection pin 705 contacts the main connection socket first, and the detection pin 706 contacts the detection socket later. This plugging sequence ensures that the main circuit is established before the detection circuit begins operating, preventing interference from the detection circuit on the main circuit connection process and improving the accuracy and stability of the plugging. Therefore, a plug assembly 7 that has passed the detection circuit inspection can eliminate faults such as false insertion, thereby improving the stability of the battery device 2 during operation.

[0134] like Figure 8 As shown, in some embodiments of the present application, the battery device 2 further includes a connection detection system 8, which is used to simultaneously detect the connection stability of multiple plug-in components 7. The connection detection system 8 includes a series conductor 801 and a loop detection device 802. The series conductor 801 is used to connect multiple detection sockets in series. The loop detection device 802 is connected to both ends of the series conductor 801. When the main connection pins 705 of all plug-in components 7 are fully connected to the main connection sockets, the series detection circuit is connected. When the main connection pin 705 of any plug-in component 7 is not fully connected, the series detection circuit is disconnected.

[0135] Series conductor 801 is used to connect multiple test sockets in series, forming an electrical connection between them. This series connection ensures that the status of each test socket affects the on / off state of the entire series test circuit. In practical applications, series conductor 801 is typically made of a metal conductor with good electrical conductivity and mechanical strength, such as copper, to ensure stable signal transmission and reliable connection.

[0136] The layout of the series conductors 801 must consider the distribution and installation location of the connector assembly 7. The conductors should be routed along a reasonable path to avoid interference with other components. The conductor length should be moderate, neither too long to cause signal attenuation nor too short to affect installation and maintenance. Furthermore, to improve the durability and safety of the conductors, they are typically coated with insulating material.

[0137] Loop detection device 802 is connected to both ends of series conductor 801. Its primary function is to detect the continuity of the series detection loop. When the loop is open, loop detection device 802 can detect a certain current, voltage, or specific signal characteristics. When the loop is open, these signal characteristics change, and loop detection device 802 can promptly identify and issue a corresponding signal. Common loop detection methods include current detection, voltage detection, and signal integrity detection.

[0138] The connection detection system 8 is closely related to the main connection pin 705 and the main connection socket of the plug assembly 7. The connection state of the main connection pin 705 and the main connection socket directly determines the continuity of the series detection circuit. When the main connection pin 705 is fully inserted into the main connection socket, the elastic contact component 721 in the detection socket forms a good elastic contact with the detection pin 706, making the series detection circuit conductive; conversely, when the main connection pin 705 is not fully inserted, poor contact will cause the circuit to disconnect. Therefore, the connection detection system 8 can accurately reflect the connection stability of the plug assembly 7.

[0139] Optionally, by monitoring the connection status of the plug assembly 7 in real time, the connection detection system 8 can promptly issue an alarm if a connection anomaly occurs, prompting the operator to perform inspection and repairs. This helps avoid electrical failures, battery performance degradation, and even safety accidents caused by poor connections, and plays an important role in protecting the plug assembly 7 and the entire battery device 2.

[0140] By using a series detection loop, the connection status of the plug assembly 7 can be accurately determined. If even one of the main connection pins 705 of the plug assembly 7 is not fully connected, the loop will be disconnected. The loop detection device 802 will immediately detect and issue a signal, avoiding misjudgments caused by partial poor connections. When the connection detection system 8 issues an alarm, the operator can quickly locate the plug assembly 7 with the connection problem based on the signal from the loop detection device 802, reducing the time and difficulty of troubleshooting. This helps improve maintenance efficiency and shorten equipment downtime.

[0141] In the above structure, by providing a series conductor 801 to connect multiple plug-in components 7 in series, multiple plug-in components 7 can be tested simultaneously, thereby improving the efficiency of the test.

[0142] An embodiment of the present application provides an electrical device including the battery device 2 described in the above embodiment. The battery device 2 is configured to provide electrical energy. The electrical device may be a vehicle 1. Since the electrical device includes the battery device 2 described above, it also has the technical effects described in the above embodiment, which will not be described in detail here.

[0143] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

Claims

1. A plug assembly, characterized in that: include: The first connector includes a first insulating portion and a main connecting pin and a pair of detection pins spaced apart on a plugging surface of the first insulating portion; The second connector includes a second insulating portion and a main connecting seat and a pair of detection seats spaced apart on the second insulating portion; In which, the main connecting needle is configured to be inserted into the main connecting socket and form a circuit connection, the first ends of a pair of detection needles are electrically connected to each other, and the second ends are configured to be inserted into the corresponding detection sockets respectively, the height of the main connecting needle protruding from the plug-in surface is greater than the height of the detection needle protruding from the plug-in surface, and the pair of detection sockets are configured to be connected to the detection circuit, and are used to characterize the electrical connection stability between the main connecting needle and the main connecting socket through the on-off state of the detection circuit.

2. The plug assembly according to claim 1, characterized in that The first insulating portion includes: an insulating substrate having a plug-in surface facing the second plug connector, the main connecting pin and a pair of detection pins being fixedly arranged on the plug-in surface; A protective structure is formed by vertically extending from the periphery of the insulating substrate, and the protective structure is arranged around the main connecting pin and the detection pin. The insulating substrate and the enclosure structure together define a protective chamber for accommodating the main connecting needle and the detection needle.

3. The plug assembly according to claim 2, characterized in that The detection needle includes a first section embedded in the insulating substrate and a second section protruding from the plug-in surface. The first connector also includes a bridging conductor embedded in the insulating substrate and electrically connecting the first sections of the two detection needles.

4. The plug assembly according to claim 1, characterized in that The first insulating portion includes: an insulating substrate having a plug-in surface facing the second plug-in connector, wherein the main connecting pin is provided on the plug-in surface; A protective structure is formed by vertically extending from the periphery of the insulating substrate and surrounding the main connecting pin. The protective structure is provided with a mounting groove, and the mounting groove includes two first parts extending along the plugging direction and a second part connecting the two first parts. The detection needle includes conductive posts connected to each other and a needle head connected to the conductive posts. The conductive posts are arranged on the first part, and the needle head protrudes from the plug-in surface. The detection needle also includes a connecting section arranged on the second part, and the two ends of the connecting section are respectively connected to the two conductive posts.

5. The plug assembly according to any one of claims 1 to 4, characterized in that: The first connector and the second connector are arranged opposite to each other along the plugging direction, a pair of detection pins are symmetrically distributed on both sides of the main connecting pin, and the connection direction of the detection pins and the main connecting pins is perpendicular to the plugging direction.

6. The plug assembly according to claim 5, characterized in that: There are multiple main connecting pins, and the multiple main connecting pins are arranged in an array on the plug-in surface.

7. The plug assembly according to claim 5, characterized in that The second insulating portion includes: an insulating base having a connection surface opposite to the plug-in surface; A main connecting groove is formed on the connecting surface, and the main connecting groove is used to accommodate the main connecting seat.

8. The plug assembly according to claim 7, characterized in that: The main connecting seat includes an elastic contact component arranged in the main connecting groove, and the elastic contact component includes: A fixed frame, embedded in the main connecting groove, and having a plug opening facing the plug surface; An elastic contact piece is provided in the plug opening and has a contact portion bent into the fixed frame. The elastic contact piece is used to form an elastic pressing contact with the main connecting pin. The contact portion of the elastic contact piece is configured to generate elastic deformation during the plugging process to maintain a stable electrical connection with the main connecting pin.

9. The plug assembly according to claim 7 or 8, characterized in that: The detection seat includes: an insulating shell, fixedly connected to the insulating base; The elastic contact component is arranged inside the insulating housing, and the elastic contact component is configured to form elastic pressing contact with the corresponding detection needle.

10. The plug assembly according to claim 9, characterized in that: A guide groove is provided on the outer side of the insulating base, and the insulating shell is detachably connected to the insulating base through the guide groove.

11. A battery device, characterized in that: The invention comprises the plug-in assembly according to any one of claims 1 to 10.

12. The battery device according to claim 11, wherein: The invention also includes a connection detection system, wherein the connection detection system is used to simultaneously detect the connection stability of multiple plug-in components, and the connection detection system includes: A series conductor is used to connect the plurality of detection sockets in series in sequence; A loop detection device is connected to both ends of the series wire to form a series detection loop. When the main connection pins of all plug-in components are fully plugged into the main connection socket, the series detection loop is connected. When the main connection pins of any plug-in component are not fully plugged in, the series detection loop is disconnected.

13. An electrical device, characterized in that: The electrical device comprises the battery device according to claim 11 or 12, and the battery device is used to provide electrical energy.

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