Connectors, battery devices and electrical appliances

Abstract

This application provides a connector, a battery device, and an electrical device, belonging to the field of battery technology. The connector includes a first insertion member and a second insertion member. The first insertion member includes an electrical connection portion with a conductive surface. The second insertion member includes a body, a floating portion movably connected to the body, and an elastic member connecting the body and the floating portion. The floating portion includes a first conductive terminal and a second conductive terminal spaced apart from each other, and a base. The first and second conductive terminals form an electrical circuit. The base has a cavity inside, and a limiting body is provided inside the cavity. The elastic member is sleeved on the limiting body. The first insertion member can be inserted into the second insertion member so that the first and second conductive terminals respectively contact the conductive surface. The elastic member is used to keep the first and second conductive terminals in contact with the conductive surface. Because the conductive surface is a large-area planar structure, the requirement for mating precision is lower, which is beneficial to improving the reliability of the connector.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a connector, a battery device, and an electrical device. Background Technology

[0002] Energy conservation and emission reduction are key to sustainable social development, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the automotive industry's sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] In related technologies, a high-voltage connector is typically installed between the battery and the vehicle to supply power to the vehicle. Improving the reliability of this connector has always been a hot research topic. Summary of the Invention

[0004] This application aims to at least address one of the technical problems existing in the prior art. Therefore, one object of this application is to provide a connector, battery device, and power supply device to improve the reliability of the connector.

[0005] An embodiment of the first aspect of this application provides a connector, including: a first plug-in and a second plug-in; the first plug-in includes an electrical connection portion having a conductive surface; the second plug-in includes a body, a floating portion movably connected to the body, and an elastic member connected between the body and the floating portion, the floating portion including a first conductive terminal and a second conductive terminal spaced apart from each other, and a base movably connected to the body along a first direction, the first conductive terminal and the second conductive terminal forming an electrical circuit, the first conductive terminal and the second conductive terminal respectively protruding from a first end of the base along the first direction, and the base having a cavity inside, a limiting body being provided on the inner side of the first conductive terminal facing the cavity, at least a portion of the elastic member being accommodated in the cavity, and the elastic member being sleeved on the limiting body; the first plug-in can be plugged into the second plug-in so that the first conductive terminal and the second conductive terminal respectively contact the conductive surface, thereby connecting the electrical circuit, and the elastic member is used to provide a force to the floating portion so that the first conductive terminal and the second conductive terminal respectively remain in contact with the conductive surface.

[0006] In this embodiment, when the first and second connectors are inserted, the first and second conductive terminals can contact the conductive surface. Since the conductive surface is a large-area planar structure, the first and second conductive terminals can quickly and smoothly contact the conductive surface, requiring lower precision in mating, which is beneficial for improving the reliability of the connector. Simultaneously, the elastic element can provide force to both the first and second conductive terminals, ensuring they remain in contact with the conductive surface, improving the connection reliability of the electrical circuit and further enhancing the reliability of the connector. By setting a limiting body in the cavity, the elastic element, fitted onto the limiting body, can reduce the shaking or displacement of the elastic element under force, reducing wear between the elastic element and the base, and simultaneously improving the smoothness and reliability of the floating part's movement.

[0007] In some embodiments, the substrate is embedded with a first extension and a second extension. One end of the first extension is connected to a first conductive terminal, and the other end of the first extension is exposed at a second end of the substrate along a first direction. One end of the second extension is connected to a second conductive terminal, and the other end of the second extension is exposed at a second end of the substrate.

[0008] In this embodiment, by embedding the first extension section and the second extension section in the substrate, the first conductive terminal and the second conductive terminal can be connected to the corresponding lines of the battery device to form an electrical circuit. This method can make reasonable use of the internal space of the substrate, has a simple structure, and makes the wiring more concise.

[0009] In some embodiments, the substrate has a cavity inside, and the first end of the substrate has a first flange and a second flange, both of which protrude inward from the inner surface of the substrate; the first flange is inserted into a first conductive terminal, and the second flange is inserted into a second conductive terminal.

[0010] In this embodiment, a first flange and a second flange are provided at the first end of the substrate. The first flange can be inserted into the first conductive terminal, and the second flange can be inserted into the second conductive terminal, thereby connecting the first conductive terminal and the second conductive terminal to the first end of the substrate. The structure is simple and easy to implement.

[0011] In some embodiments, the first conductive terminal includes a first sub-segment connected to a first extension segment and a first protruding segment protruding from and connected to the first sub-segment. The first protruding segment protrudes from a first end of the substrate, and a first space is provided between the first protruding segment and the first sub-segment. A first flange is inserted into the first space. The second conductive terminal includes a second sub-segment connected to a second extension segment and a second protruding segment protruding from and connected to the second sub-segment. The second protruding segment protrudes from a first end of the substrate, and a second space is provided between the second protruding segment and the second sub-segment. A second flange is inserted into the second space.

[0012] In this embodiment, the first protruding segment and the first sub-segment form a first space, which allows for the connection between the first protruding segment and the first extension segment, as well as the connection between the first flange and the first conductive terminal. The first flange provides support for the first protruding segment when the first conductive terminal contacts the conductive surface, thus improving contact reliability. The second protruding segment and the second sub-segment form a second space, which allows for the connection between the second protruding segment and the second extension segment, as well as the connection between the second flange and the second conductive terminal. The second flange provides support for the second protruding segment when the second conductive terminal contacts the conductive surface, further improving contact reliability. Furthermore, the structure is simple, compact, and easy to implement.

[0013] In some embodiments, the first protruding segment includes a first connecting segment, a first planar segment, and a first bent segment connected in sequence. The first connecting segment is connected to a first sub-segment. The first planar segment is arranged perpendicular to a first direction. A first opening is provided between the first bent segment and the first sub-segment. A first flange is inserted into a first space through the first opening. The second protruding segment includes a second connecting segment, a second planar segment, and a second bent segment connected in sequence. The second connecting segment is connected to a second sub-segment. The second planar segment is arranged perpendicular to the first direction. A second opening is provided between the second bent segment and the second sub-segment. A second flange is inserted into a second space through the second opening.

[0014] In this embodiment, by providing a first connecting segment, a first planar segment, and a first bending segment, a first space can be formed between the first sub-segment and the first protruding segment, facilitating insertion with the first flange, resulting in a simple and compact structure. By providing a second connecting segment, a second planar segment, and a second bending segment, a second space can be formed between the second sub-segment and the second protruding segment, facilitating insertion with the second flange, resulting in a simple and compact structure.

[0015] In some embodiments, the first planar segment has a plurality of first contact protrusions protruding in a direction away from the first sub-segment, the plurality of first contact protrusions being used to contact a conductive surface, and the second planar segment has a plurality of second contact protrusions protruding in a direction away from the second sub-segment, the plurality of second contact protrusions being used to contact a conductive surface.

[0016] In this embodiment, multiple first contact protrusions can improve the contact reliability between the electrical connection part and the first conductive surface, and multiple second contact protrusions can improve the contact reliability between the electrical connection part and the second conductive surface, thereby enabling the first conductive terminal and the second conductive terminal to achieve an effective and stable electrical connection through the electrical connection part.

[0017] In some embodiments, the end of the first extension away from the first conductive terminal is connected to a first conductive element, the first conductive element having a first coiled section for providing a stretching allowance for the movement of the substrate relative to the body, and the end of the second extension away from the second conductive terminal is connected to a second conductive element, the second conductive element having a second coiled section for providing a stretching allowance for the movement of the substrate relative to the body.

[0018] In this embodiment, by providing a first conductive element with a first curled segment and a second conductive element with a second curled segment, sufficient expansion and contraction margin can be provided for the movement of the floating part relative to the main body, thereby improving the electrical connection failure problem caused by excessive stretching of the first and second conductive elements and improving the reliability of the connection.

[0019] In some embodiments, the limiting body includes a first segment and a second segment connected sequentially along a first direction. The first segment is located inside the second segment away from the first conductive terminal, and the second segment has a stepped surface protruding from the first segment in a direction perpendicular to the first direction. An elastic member is sleeved outside the first segment and abuts against the stepped surface.

[0020] In this embodiment, the first segment can be used to install the elastic element, and the second segment can be used to isolate the elastic element from the first conductive terminal (second conductive terminal), thereby improving the situation where the elastic element contacts the first conductive terminal and the second conductive terminal and conducts electricity, and simplifying the structure of the elastic element.

[0021] In some embodiments, the second connector further includes a sleeve, which is detachably connected to the body and the floating portion is movably connected inside the sleeve.

[0022] In this embodiment, by setting a sleeve, the sleeve and the floating part can be disassembled and assembled as a single component, which is convenient for replacement and can improve the versatility of the component, making it widely applicable to various high-voltage interlocking structures.

[0023] In some embodiments, the second end of the substrate has a boss protruding outward from the outer surface of the substrate, the boss has a first limiting surface facing the first end of the substrate, and the inner surface of the sleeve has a second limiting surface facing the first limiting surface. The first limiting surface is used to abut against the second limiting surface to restrict the movement of the substrate relative to the sleeve.

[0024] In this embodiment, by providing a boss at the second end of the base and a second limiting surface in the sleeve, the first limiting surface of the boss can abut against the second limiting surface, thereby restricting the movement of the floating part relative to the sleeve. This method has a simple structure and can achieve movement restriction without introducing additional components. At the same time, it can prevent the floating part from detaching from the sleeve, improving the structural reliability of the connector.

[0025] In some embodiments, the second connector further includes a sleeve, and a floating portion is movably connected inside the sleeve; the electrical connection portion includes a first electrical connection segment and a second electrical connection segment connected to the first electrical connection segment, the end of the first electrical connection segment facing away from the second electrical connection segment has a conductive surface, and the second electrical connection segment protrudes outward from the outer surface of the first electrical connection segment; when the first connector and the second connector are inserted, the first electrical connection segment is inserted into the sleeve, and the second electrical connection segment abuts against the end face of the sleeve.

[0026] In this embodiment, by providing a first electrical connection segment and a second electrical connection segment, when the first connector and the second connector are inserted, the first electrical connection segment can be inserted into the sleeve to achieve the connection between the electrical connection part and the first conductive terminal and the second conductive terminal. The second electrical connection segment can abut against the outer end face of the sleeve, thereby limiting the insertion depth of the electrical connection part into the sleeve. It is understood that the greater the insertion depth, the smaller the contact resistance between the electrical connection part and the first and second conductive terminals; however, the more severe the wear on the components. The second electrical connection segment can balance the contact resistance and the wear on the components, minimizing the contact resistance while reducing wear on the components.

[0027] In some embodiments, a first chamfer is provided between the conductive surface and the outer side of the electrical connection portion; and / or, a second chamfer is provided between the inner surface of the sleeve and the end face of the second electrical connection segment facing the sleeve.

[0028] In this embodiment, by setting a first chamfer and / or a second chamfer, it can play a guiding role in the process of interlocking the electrical connection part and the sleeve, which can reduce the requirements for the fitting accuracy during the interlocking process of the electrical connection part and the sleeve, and smoothly realize the interlocking of the two.

[0029] In some embodiments, the second connector is used to connect to the housing of the battery device, and the first connector is used to connect to an electrical component.

[0030] By placing the second connector in the housing and connecting the first connector to the electrical components, the electrical components can be powered by a battery device, and the safety and reliability of the power supply can be improved through the high-voltage interlock function of the connector.

[0031] An embodiment of the second aspect of this application provides a battery device, including: a housing, a connector as described in any of the above embodiments, and at least one battery cell; at least one battery cell is housed in the housing; and a second plug of the connector is connected to the housing.

[0032] An embodiment of the third aspect of this application provides an electrical device, which includes the connector in any of the above embodiments; or, the electrical device includes the battery device in the above embodiments, the battery device being used to provide electrical energy.

[0033] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0034] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0035] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments; Figure 2 This is an exploded view of the battery device provided in some embodiments of this application; Figure 3 for Figure 2 A schematic diagram of the connector structure; Figure 4 for Figure 3 Front view of the connector; Figure 5 for Figure 3 Exploded view of the connector; Figure 6 for Figure 3 A schematic diagram of the structure of the first connector; Figure 7 for Figure 3 A schematic diagram of the structure of the second connector; Figure 8 for Figure 4 Sectional view at point AA; Figure 9 for Figure 5 A magnified view of a section at point B in the middle; Figure 10 for Figure 8 Schematic diagram of the structure of the electrical connection part, sleeve and floating part; Figure 11 for Figure 10 The main view; Figure 12 for Figure 10 Top view; Figure 13 for Figure 12 Sectional view at CC; Figure 14 for Figure 10 Schematic diagram of the structure of the electrical connection part and the floating part; Figure 15 for Figure 14 A schematic diagram of the structure of the first conductive terminal, the second conductive terminal, the first extension segment, and the second extension segment; Figure 16 The diagram shows the structure of the base, the first extension segment, and the second extension segment provided in some embodiments of this application.

[0036] Explanation of reference numerals in the attached figures: 1000 vehicles; Battery unit 100, controller 200, motor 300; Battery cell assembly 10, battery cell 11, housing 20, first part 21, second part 22, connector 30; First plug-in 400, electrical connection part 410, conductive surface 411, first chamfer 4111, first electrical connection segment 420, second electrical connection segment 430, first plug-in part 440. Second connector 500, body 510, second connector portion 511, floating portion 520, first conductive terminal 521, second conductive terminal 522, base 523, first flange 5231, second flange 5232, boss 5233, first limiting surface 5234, cavity 5235, first protrusion 5236, second protrusion 5237, first extension segment 524, second extension segment 525, first sub-segment 526, first protruding segment 527, first connecting segment 5271, first planar segment 5272, first bending segment 5273, first contact protrusion 5274, second protruding segment 528, second connecting segment 5281, second planar segment 5282, second bending segment 5283, second contact protrusion 5284, second sub-segment 529, elastic member 530; First space 540, first opening 541, second space 550, second opening 551; First conductive element 560, first coiled segment 561, second conductive element 570, second coiled segment 571; Sleeve 580, second limiting surface 581, second chamfer 582, limiting body 590, first segment 591, second segment 592, step surface 593. Detailed Implementation

[0037] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, "a and / or b" can represent three cases: a exists alone, a and b exist simultaneously, and b exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0042] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0043] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0045] The following is an explanation of the proprietary terms used in the embodiments of this application.

[0046] High Voltage Interlock (HVIL) refers to the use of low-voltage signals to check the electrical integrity (i.e., continuity) of high-voltage products, wires, connectors, and covers, and to promptly disconnect high-voltage power when an abnormal circuit is broken.

[0047] Currently, the application of rechargeable batteries is becoming increasingly widespread, judging from market trends. They are not only used in energy storage systems for hydropower, thermal power, wind power, and solar power plants, but also extensively in various electronic devices, such as electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As the application areas of rechargeable batteries continue to expand, the market demand is also constantly increasing.

[0048] In related technologies, high-voltage connectors typically have a plug and a socket. The plug may include a plug body and pins, while the socket may have a socket body and a jack. The plug and socket can be inserted, allowing the socket body and plug body to mate, simultaneously enabling the pins and jack to engage. This allows the spring contacts in the pins and jacks to have an interference fit, achieving electrical connection. It can be understood that the pins and jacks can form a low-voltage circuit, while the plug body and socket body can form a high-voltage circuit. The low-voltage circuit can be used for monitoring the high-voltage circuit, thereby achieving high-voltage interlocking of the high-voltage connector.

[0049] However, because the pins are thin, the fitting accuracy required when they are inserted into the socket is high. Otherwise, the pins may be misaligned or the socket may be misaligned, resulting in abnormal fitting between the socket and the pins. This can lead to abnormal interlocking of the high-voltage connector, and further to high-voltage disconnection and abnormal high-voltage operation. In other words, the reliability of high-voltage connectors with fitting pins and sockets is low.

[0050] To improve or solve at least one of the above problems, embodiments of this application provide a connector, a battery device, and an electrical device. The connector includes a first plug and a second plug. The first plug includes an electrical connection portion with a conductive surface. The second plug includes a body, a floating portion movably connected to the body, and an elastic member connected between the body and the floating portion. The floating portion includes a first conductive terminal and a second conductive terminal spaced apart from each other, and a base movably connected to the body along a first direction. The first and second conductive terminals form an electrical circuit. The first and second conductive terminals protrude from a first end of the base along the first direction, and the base has a cavity inside. A limiting body is provided on the inner side of the first conductive terminal facing the cavity. At least a portion of the elastic member is accommodated in the cavity, and the elastic member is sleeved on the limiting body. The first plug can be inserted into the second plug to make the first and second conductive terminals contact the conductive surface, thereby connecting the electrical circuit. The elastic member provides a force to the floating portion to keep the first and second conductive terminals in contact with the conductive surface.

[0051] In this embodiment, when the first and second connectors are inserted, the first and second conductive terminals can contact the conductive surface. Since the conductive surface is a large-area planar structure, the first and second conductive terminals can quickly and smoothly contact the conductive surface, requiring lower precision in mating, which is beneficial for improving the reliability of the connector. Simultaneously, the elastic element can provide force to both the first and second conductive terminals, ensuring they remain in contact with the conductive surface, improving the connection reliability of the electrical circuit, and further enhancing the reliability of the connector. By providing a limiting body in the cavity, the elastic element fitted onto the limiting body can reduce the shaking or displacement of the elastic element under force, reducing wear between the elastic element and the base, and simultaneously improving the smoothness and reliability of the floating part's movement.

[0052] The technical solutions described in the embodiments of this application are applicable to connectors, battery devices including connectors, electrical devices using battery devices or connectors, and energy storage devices.

[0053] The energy storage device utilizing battery devices as a power source in this application embodiment includes one or more battery clusters to enhance the voltage and capacity of the energy storage device. A battery cluster may include multiple battery devices, which are connected in series via a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0054] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it when appropriate. For example, an energy storage device can store electrical energy during off-peak hours and provide power to relevant users or electrical devices during peak hours. The energy storage system provided in this application embodiment can be any power system that requires energy storage devices. As an example, the energy storage device is an energy storage container or an energy storage cabinet.

[0055] In this application embodiment, the power-consuming device using a battery as a power source can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0056] It should be understood that the technical solutions described in the embodiments of this application are not limited to the energy storage devices and electrical devices described above, but can also be applied to all battery devices including housings and electrical devices using battery devices. However, for the sake of brevity, the following embodiments will be described using a vehicle as an example of an electrical device.

[0057] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0058] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0059] Please refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device provided in some embodiments of this application.

[0060] The battery device 100 mentioned in the embodiments of this application may include one or more battery cell assemblies 10 for providing voltage and capacity. The battery cell assembly 10 may include multiple battery cells 11, which are connected in series, parallel, or mixed connection via a busbar.

[0061] In some embodiments, the battery cell assembly 10 is typically formed by arranging a plurality of battery cells 11.

[0062] As an example, the battery cell assembly 10 can be a battery module, which is formed by arranging and fixing multiple battery cells 11 together to form an independent module. As an example, the battery module can be formed by bundling multiple battery cells 11 together with cable ties.

[0063] In some embodiments, such as Figure 2 As shown, the battery device 100 can be a battery pack, which includes a housing 20 and one or more individual battery cells 10, with the individual battery cells 10 housed within the housing 20. The housing 20 can be a simple three-dimensional structure such as a single cuboid, cylinder, or sphere, or a complex three-dimensional structure composed of combinations of simple cuboids, cylinders, or spheres. The material of the housing 20 can be an alloy such as aluminum alloy or iron alloy, a polymer such as polycarbonate or polyisocyanurate foam, or a composite material such as glass fiber and epoxy resin.

[0064] As an example, the battery cell assembly 10 can be a battery module, and the battery cell assembly 10 can be housed in the housing 20 by fixing the battery module in the housing 20.

[0065] As an example, the battery cell assembly 10 can also be housed in the housing 20 by directly fixing multiple battery cells 11 to the housing 20.

[0066] As an example, the housing 20 may include a first part 21 and a second part 22. The first part 21 and the second part 22 are fastened together to form a closed space inside the housing 20 to house the battery cell assembly 10. Here, "closed" refers to covering or closing, and can be either non-sealed or sealed to mitigate the impact of liquids or other foreign objects on the charging or discharging of the battery cell 11. The first part 21 may be a top cover or a bottom plate.

[0067] As an example, the housing 20 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 20 forms an enclosed space to accommodate the battery cell assembly 10.

[0068] In some embodiments, the housing 20 may be part of the vehicle's chassis structure. For example, a portion of the housing 20 may be at least a portion of the vehicle's floor, or a portion of the housing 20 may be at least a portion of the vehicle's crossbeams and longitudinal beams.

[0069] The battery cell 11 provided in the embodiments of this application can be a secondary battery. A secondary battery refers to a battery cell 11 that can be used again after being discharged by recharging to activate the active material.

[0070] The battery cell 11 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0071] Figure 3 for Figure 2 A schematic diagram of the connector structure; Figure 4 for Figure 3 Front view of the connector; Figure 5 for Figure 3 Exploded view of the connector; Figure 6 for Figure 3 A schematic diagram of the structure of the first connector; Figure 7 for Figure 3 A schematic diagram of the structure of the second connector; Figure 8 for Figure 4 Sectional view at point AA; Figure 9 for Figure 5 A magnified view of a section at point B in the middle; Figure 10 for Figure 8 Schematic diagram of the structure of the electrical connection part, sleeve and floating part; Figure 11 for Figure 10 The main view; Figure 12 for Figure 10 Top view; Figure 13 for Figure 12 Sectional view at point CC.

[0072] Please refer to Figures 2 to 13This application provides a connector 30, including: a first plug member 400 and a second plug member 500; the first plug member 400 includes an electrical connection portion 410 having a conductive surface 411; the second plug member 500 includes a body 510, a floating portion 520 movably connected to the body 510, and an elastic member 530 connected between the body 510 and the floating portion 520. The floating portion 520 includes a first conductive terminal 521 and a second conductive terminal 522 spaced apart from each other, and a base 523 movably connected to the body 510 along a first direction X. The first conductive terminal 521 and the second conductive terminal 522 are used to form an electrical circuit. Terminals 522 protrude from the first end of the base 523 along the first direction X. The base 523 has a cavity 5235 inside. A limiting body 590 is provided on the inner side of the first conductive terminal 521 facing the cavity 5235. At least a portion of the elastic member 530 is accommodated in the cavity 5235 and the elastic member 530 is sleeved on the limiting body 590. The first plug-in member 400 can be plugged into the second plug-in member 500 so that the first conductive terminal 521 and the second conductive terminal 522 respectively contact the conductive surface 411, thereby connecting the electrical circuit. The elastic member 530 is used to provide a force to the floating part 520 so that the first conductive terminal 521 and the second conductive terminal 522 respectively keep in contact with the conductive surface 411.

[0073] In this embodiment, the connector 30 can be disposed between the battery device 100 and the electrical component, and it can be a high-voltage connector for connecting a high-voltage circuit. The connector 30 may include a first plug 400 and a second plug 500.

[0074] The second connector 500 can be installed on the housing 20, for example, on the second part 22 of the housing, for electrical connection with the battery device. The first connector 400 can be connected to an electrical component in the electrical device, for example, the electrical device is a vehicle 1000, and its electrical component can be the entire vehicle. The first connector 400 can be plugged into the second connector 500, thereby connecting the high-voltage circuit between the entire vehicle and the battery device 100. It is understood that when the electrical device is other equipment outside the vehicle, the electrical component can also be other corresponding components of the electrical device.

[0075] like Figure 6 and Figure 7As shown, in some embodiments, the first connector 400 may be provided with a first connector portion 440, and the second connector 500 may be provided with a second connector portion 511. The first connector portion 440 and the second connector portion 511 can be inserted into each other to realize the connection between the first connector 400 and the second connector 500. It can be understood that the first connector portion 440 and the second connector portion 511 can be used to form the high-voltage circuit of the connector. In one embodiment, one of the first connector portion 440 and the second connector portion 511 can be a slot, and the other can be a protrusion. The insertion of the protrusion and the slot can realize the insertion between the first connector 400 and the second connector 500.

[0076] In one embodiment, such as Figure 5 In this embodiment, the first connector 400 can move relative to the second connector 500 along the first direction X to achieve insertion. Of course, in another embodiment, the first connector 400 can also move relative to the second connector 500 by means of rotational connection to achieve insertion.

[0077] The first connector 400 may also include an electrical connection portion 410, which may be made of a conductive material, such as copper, aluminum, or an alloy, and may have a conductive surface 411. The electrical connection portion 410 may be a sheet-like or block-like structure, and may have a relatively large and flat surface, which may be the conductive surface 411. When the first connector 400 and the second connector 500 are inserted into each other, the conductive surface 411 may face the second connector 500.

[0078] The second connector 500 may include a body 510, which may be made of an insulating material such as plastic. The second connector portion 511 may be disposed on the body 510. Additionally, the body 510 may also be provided with a floating portion 520, which is capable of moving relative to the body 510. For example… Figure 8 In the middle, the floating part 520 can move relative to the main body 510 along the first direction X.

[0079] The floating part 520 may have a first conductive terminal 521 and a second conductive terminal 522. The first conductive terminal 521 and the second conductive terminal 522 may be made of conductive materials such as aluminum, copper or metal alloys. The first conductive terminal 521 and the second conductive terminal 522 are spaced apart from each other, that is, they may not be in direct contact or connected.

[0080] The floating part 520 may include a base 523, which may be made of an insulating material, such as plastic, processed by common techniques. The base 523 may be a block or cylindrical structure, with a cross-section perpendicular to the first direction X as its cross-section. The cross-section of the base 523 may be square, circular, or other shapes.

[0081] The base 523 can be movably connected to the body 510. For example, the body 510 may have a floating cavity extending in a first direction, the base 523 may be located in the floating cavity, and can move relative to the body 510 in the first direction X. Alternatively, the body 510 may be provided with a slide rail extending in the first direction, and the base 523 may move along the slide rail.

[0082] The first conductive terminal 521 and the second conductive terminal 522 can be mounted on the base 523, such as Figure 13 and Figure 16 In this embodiment, the top end of the substrate 523 can be a first end along the first direction X, and the bottom end of the substrate 523 can be a second end along the first direction X. The first end of the substrate 523 can be provided with a first conductive terminal 521 and a second conductive terminal 522. The first conductive terminal 521 and the second conductive terminal 522 can protrude from the first end of the substrate 523, thereby facilitating contact with the electrically connected part.

[0083] It is understood that when connector 30 is used with battery device 100, the first conductive terminal 521 and the second conductive terminal 522 can be connected to the internal circuit of the battery device to form an electrical circuit. When the first connector and the second connector are separated, the electrical circuit is open because the first conductive terminal 521 and the second conductive terminal 522 are separated from each other. When the first connector and the second connector are inserted, the first conductive terminal 521 and the second conductive terminal 522 can respectively contact the conductive surface 411, thereby achieving electrical connection between the two through the conductive surface, thus connecting the electrical circuit.

[0084] In this embodiment, the electrical circuit can be a low-voltage circuit, distinct from the high-voltage circuit. The low-voltage circuit can monitor the high-voltage circuit using low-voltage signals, thereby achieving high-voltage interlocking. The low-voltage circuit can detect the integrity and continuity of the high-voltage circuit, and can promptly disconnect the high-voltage circuit when an anomaly is detected. The low-voltage circuit can be connected before the high-voltage circuit and then disconnected.

[0085] An elastic element 530 may also be provided between the floating part 520 and the main body 510. The elastic element 530 may be a spring, sheet, or other elastic component that can deform under external force and recover after the external force is removed.

[0086] It is understood that in some embodiments, the surface of the elastic element may also have an insulating layer, or the elastic element may be made of an insulating material, thereby preventing the elastic element from contacting the first conductive terminal or the second conductive terminal and becoming conductive.

[0087] It is understood that the floating part 520 can move relative to the body 510 as a whole, and the elastic member 530 can be connected between the floating part 520 and the body 510, so as to provide a force to the floating part 520. This force can be pressure or tension, which can be used to press the first conductive terminal 521 and the second conductive terminal 522 against the conductive surface 411.

[0088] For example, Figure 8 In this structure, the elastic element 530 can be a helical spring, one end of which can abut against the floating part 520 and the other end of which can abut against the body 510. The elastic element 530 can provide a force from left to right to the floating part 520.

[0089] In this embodiment, a cavity is provided within the substrate, and the cavity can extend along a first direction. A limiting body 590 can also be provided near the first end of the substrate 523 within the cavity. The limiting body 590 can be located inside the cavity 523, for example, inside the first sub-segment 526 and the second sub-segment 529. The limiting body 590 can be a columnar structure, which can be connected to the substrate, or it can be a separate component.

[0090] The elastic element 530 can extend along the first direction X, and the elastic element 530 can be at least partially accommodated in the cavity 5235. One end of the elastic element 530 located in the cavity 5235 can be sleeved on the limiting body 590. It can be understood that the limiting body 590 can restrict the movement of the elastic element 530 in a plane perpendicular to the first direction X. When the elastic element 530 is subjected to force to expand or contract, it is not easy for it to shake or deviate, thereby reducing collision or interference with the inner wall surface of the cavity, reducing wear between components, and improving the reliability of the movement of the floating part 520.

[0091] In some embodiments, the body 510 may also be provided with a limiting boss opposite to the limiting body, and the other end of the elastic member 530 may be sleeved outside the limiting boss, so that the elastic member 530 can be limited by the limiting boss and the limiting body 590, further reducing the shaking and displacement of the elastic member, and improving the smoothness and reliability of the floating part movement.

[0092] The connector in this embodiment, such as Figure 8 When the first connector 400 and the second connector 500 are inserted relative to each other along the first direction X, the floating part 520 and the electrical connection part 410 can move closer to each other as the first connector 400 and the second connector 500 are inserted into place. When the first connector 400 and the second connector 500 are inserted into place, the first conductive terminal 521 and the second conductive terminal 522 on the floating part 520 can contact the conductive surface 411, thereby connecting the first conductive terminal 521 and the second conductive terminal 520 through the conductive surface 411 and realizing the connection of the electrical circuit.

[0093] It is understandable that when the electrical circuit is a low-voltage circuit, when the first connector 400 and the second connector 500 are plugged in, the low-voltage circuit is connected and energized first. When the high-voltage circuit is detected to be complete, the high-voltage circuit can be energized, thereby achieving high-voltage energization and improving electrical safety.

[0094] In this embodiment, the electrical circuit is a low-voltage circuit as an example. In other embodiments, the electrical circuit can also be a high-voltage circuit, and the specific configuration can be determined according to the actual situation.

[0095] In this embodiment, when the first connector and the second connector are plugged in, the first conductive terminal and the second conductive terminal can contact the conductive surface. Since the conductive surface is a planar structure with a large area, the first conductive terminal and the second conductive terminal can quickly and smoothly contact the conductive surface. Compared with the connection form of pins and sockets, the requirements for mating accuracy are lower, and it is less likely to cause abnormal mating between the conductive terminal and the conductive surface, which is beneficial to improving the reliability of the connector.

[0096] By incorporating an elastic element connecting the floating part and the main body, forces can be simultaneously applied to the first and second conductive terminals, ensuring they remain in contact with the conductive surface. This improves the reliability of the electrical circuit connection and further enhances the connector's reliability. Furthermore, in this embodiment, the connector is de-energized before the first and second connectors are fully inserted, enabling operation without power and ensuring high safety. Only after insertion and connection are established does the low-voltage circuit (interlock signal) activate, controlling the high-voltage circuit to conduct. Therefore, the connector can be directly plugged in and unplugged during maintenance and disassembly, offering high operational safety. It eliminates the need for inspection ports, simplifies the connector's structure, and increases assembly efficiency, allowing for wide application in various electrical devices.

[0097] In this embodiment, by setting a limiting body in the cavity, the elastic element sleeved on the limiting body can reduce the shaking or displacement of the elastic element when subjected to force, reduce the wear between the elastic element and the base, and at the same time improve the smoothness and reliability of the movement of the floating part.

[0098] Figure 14 for Figure 10 Schematic diagram of the structure of the electrical connection part and the floating part; Figure 15 for Figure 14 A schematic diagram of the structure of the first conductive terminal, the second conductive terminal, the first extension segment, and the second extension segment; Figure 16 The diagram shows the structure of the base, the first extension segment, and the second extension segment provided in some embodiments of this application.

[0099] Please refer to Figures 8 to 16According to some embodiments of this application, the substrate 523 is embedded with a first extension 524 and a second extension 525. One end of the first extension 524 is connected to a first conductive terminal 521, and the other end of the first extension 524 is exposed at the second end of the substrate 523 along the first direction X. One end of the second extension 525 is connected to a second conductive terminal 522, and the other end of the second extension 525 is exposed at the second end of the substrate 523.

[0100] like Figure 16 The substrate 523 is also embedded with a first extension segment 524 and a second extension segment 525, both of which can extend along a first direction. The first extension segment 524 and the second extension segment 525 can be made of conductive material. The first extension segment 524 and the second extension segment 525 can be integrated with the substrate 523 by means of integral processing such as insert injection molding, or they can be connected to the substrate by assembly.

[0101] The first extension segment 524 extends along the first end in the first direction ( Figure 16 The upper end of the first extension 524 can be electrically connected to the first conductive terminal 521, for example, by welding or other means, or the first extension 524 can be formed as an integral part with the first conductive terminal 521. The second end of the first extension 524 along the first direction ( Figure 16 The lower end of the matrix 523 can be exposed at the second end of the matrix 523. Figure 16 (e.g., the lower end of the base 523), for example, the first extension 524 may extend beyond the second end of the base 523. The second end of the first extension 524 may be connected to a corresponding circuit inside the battery device via a structure such as a wire, thereby forming an electrical circuit.

[0102] The second extension segment 525 extends along the first end in the first direction ( Figure 16 The upper end of the second extension 525 can be electrically connected to the second conductive terminal 522, for example, by welding or other means, or the second extension 525 can be formed as an integral part with the second conductive terminal 522. The second end of the second extension 525 along the first direction ( Figure 16 The lower end of the matrix 523 can be exposed at the second end of the matrix 523. Figure 16 (e.g., the lower end of the base 523), for example, the second extension 525 may extend beyond the second end of the base 523. The second end of the second extension 525 may be connected to a corresponding circuit inside the battery device via a structure such as a wire, thereby forming an electrical circuit.

[0103] Understandable. Figure 13 for Figure 12 A cross-sectional view at point CC, which does not pass through the first and second extensions. Figure 16 The section in question passes through the first extension segment and the second extension segment.

[0104] In some embodiments, the first conductive terminal and the second conductive terminal may be spaced apart along a direction perpendicular to the first direction X. For example, with Figure 13 The left and right directions are the second direction. The first conductive terminal and the second conductive terminal can be arranged at intervals with respect to the second direction. For example, the first conductive terminal and the second conductive terminal can be arranged symmetrically with respect to a symmetrical plane perpendicular to the second direction.

[0105] In this embodiment, by embedding the first extension section and the second extension section in the substrate, the first conductive terminal and the second conductive terminal can be connected to the corresponding lines of the battery device to form an electrical circuit. This method can make reasonable use of the internal space of the substrate, has a simple structure, and makes the wiring more concise.

[0106] It is understood that, in addition to being connected to the corresponding lines inside the battery device through the first extension and the second extension in the embedded substrate of the above embodiment, the first conductive terminal and the second conductive terminal can also be connected to the corresponding lines inside the battery device through a structure such as a wire independent of the substrate. The specific connection can be set according to the requirements.

[0107] According to some embodiments of this application, the substrate 523 has a cavity 5235 inside, and the first end of the substrate 523 has a first flange 5231 and a second flange 5232, both of which protrude inward from the inner surface of the substrate 523; the first flange 5231 is inserted into the first conductive terminal 521, and the second flange 5232 is inserted into the second conductive terminal 522.

[0108] The substrate 523 can be a structure with an internal cavity 5235. For example, the substrate 523 can be a cylindrical structure with an internal cavity 5235, and the inner surface of the substrate 523 can be the inner wall surface of the cavity 5235.

[0109] The first flange 5231 and the second flange 5232 protrude from the inner surface of the first end of the substrate, that is, the inner wall surface of the first end of the cavity 5235 along the first direction may be provided with the first flange 5231 and the second flange 5232. In some embodiments, the first flange 5231 and the second flange 5232 can be two independent structures; in other embodiments, such as... Figure 9 In the cavity 5235, the inner wall surface can form a complete ring of flanges, and the first flange 5231 and the second flange 5232 can be two opposite parts of the flange.

[0110] The first flange 5231 can be inserted into the first conductive terminal 521. For example, the first conductive terminal 521 can have a first socket, and the first flange 5231 can be inserted into the first socket. The second flange 5232 can be inserted into the second conductive terminal 522. For example, the second conductive terminal 522 can have a second socket, and the second flange 5232 can also be inserted into the second socket.

[0111] In this embodiment, a first flange and a second flange are provided at the first end of the substrate. The first flange can be inserted into the first conductive terminal, and the second flange can be inserted into the second conductive terminal, thereby connecting the first conductive terminal and the second conductive terminal to the first end of the substrate. The structure is simple and easy to implement.

[0112] According to some embodiments of this application, please refer to Figure 15 and Figure 16 The first conductive terminal 521 includes a first sub-segment 526 connected to the first extension segment 524 and a first protruding segment 527 protruding from and connected to the first sub-segment 526. The first protruding segment 527 protrudes from the first end of the base 523, and a first space 540 is provided between the first protruding segment 527 and the first sub-segment 526. A first flange 5231 is inserted into the first space 540. The second conductive terminal 522 includes a second sub-segment 529 connected to the second extension segment 525 and a second protruding segment 528 protruding from and connected to the second sub-segment 529. The second protruding segment 528 protrudes from the first end of the base 523. A second space 550 is provided between the second protruding segment 528 and the second sub-segment 529. A second flange 5232 is inserted into the second space 550.

[0113] In this embodiment, the first conductive terminal 521 may include a first sub-segment 526 and a first protruding segment 527. The first sub-segment 526 is generally located in a plane perpendicular to the first direction, and the first sub-segment 526 may be a strip-shaped, planar, or other structure. The first protruding segment 527 may protrude relative to the first sub-segment. In addition, the first protruding segment 527 may also protrude from the first end of the substrate 523, thereby achieving electrical connection between the first conductive terminal 521 and the conductive surface through contact between the first protruding segment 527 and the conductive surface 411.

[0114] The first sub-segment 526 can be used to connect the first extension segment 524 and the first protruding segment 527. Furthermore, the first protruding segment 527 and the first sub-segment 526 can form a first space 540 for inserting the first flange 5231. For example... Figure 15 and Figure 16In the first sub-segment 526, the left end can be connected to the first extension segment 524, the right end of the first sub-segment 526 can be connected to the right end of the first protruding segment 527, the first protruding segment 527 can protrude upward relative to the first sub-segment 526, and the left end of the first protruding segment 527 and the left end of the first sub-segment 526 can form a first opening 541, and the first flange 5231 is inserted into the first space 540 through the first opening 541.

[0115] The second conductive terminal 522 may include a second sub-segment 529 and a second protruding segment 528. The second sub-segment 529 is generally located in a plane perpendicular to the first direction, and the second sub-segment 529 may be a strip-shaped, planar, or other structure. The second protruding segment 528 may protrude relative to the second sub-segment. In addition, the second protruding segment 528 may also protrude from the first end of the substrate 523, thereby achieving electrical connection between the second conductive terminal 522 and the conductive surface through contact between the second protruding segment 528 and the conductive surface 411.

[0116] The second sub-segment 529 can be used to connect the second extension segment 525 and the second protruding segment 528. Furthermore, the second protruding segment 528 and the second sub-segment 529 can form a second space 550 for inserting the second flange 5232. For example... Figure 15 and Figure 16 In the second sub-segment 529, the right end can be connected to the second extension segment 525, the left end of the second sub-segment 529 can be connected to the left end of the second protruding segment 528, the second protruding segment 528 can protrude upward relative to the second sub-segment 529, and the right end of the second protruding segment 528 and the right end of the second sub-segment 529 can form a second opening 551, and the second flange 5232 is inserted into the second space 550 through the second opening 551.

[0117] In this embodiment, the first protruding segment and the first sub-segment form a first space, which allows for the connection between the first protruding segment and the first extension segment, as well as the connection between the first flange and the first conductive terminal. The first flange provides support for the first protruding segment when the first conductive terminal contacts the conductive surface, thus improving contact reliability. The second protruding segment and the second sub-segment form a second space, which allows for the connection between the second protruding segment and the second extension segment, as well as the connection between the second flange and the second conductive terminal. The second flange provides support for the second protruding segment when the second conductive terminal contacts the conductive surface, further improving contact reliability. Furthermore, the structure is simple, compact, and easy to implement.

[0118] In some embodiments, such as Figure 15 The first sub-segment 526 includes the first protruding segment 527 ( Figure 15The first protruding segment 528 comprises two parallel sub-segments at both ends (in the front-to-back direction). One of these sub-segments can be connected to the first extension segment 524. The two sub-segments, together with the first protruding segment, form a first space 540, allowing the first protruding segment to be stably inserted into the first space, thereby reducing the wobbling between the first conductive terminal and the substrate. Similarly, the second sub-segment 529 may also include two parallel sub-segments located at both ends of the second protruding segment 528. One of these sub-segments can be connected to the second extension segment 525. For details, please refer to the first sub-segment 526, which will not be elaborated further.

[0119] Please refer to Figure 13 and Figure 14 According to some embodiments of this application, the first protruding segment 527 includes a first connecting segment 5271, a first planar segment 5272, and a first bent segment 5273 connected in sequence. The first connecting segment 5271 is connected to the first sub-segment 526. The first planar segment 5272 is arranged perpendicular to the first direction X. The first bent segment 5273 and the first sub-segment 526 have a first opening 541. The first flange 5231 is inserted into the first space 540 through the first opening 541. The second protruding segment 528 includes a second connecting segment 5281, a second planar segment 5282, and a second bent segment 5283 connected in sequence. The second connecting segment 5281 is connected to the second sub-segment 529. The second planar segment 5282 is arranged perpendicular to the first direction X. The second bent segment 5283 and the second sub-segment 529 have a second opening 551. The second flange 5232 is inserted into the second space 550 through the second opening 551.

[0120] In this embodiment, the first planar segment can be perpendicular to the first direction X for electrical connection with a conductive surface. The first sub-segment 526 and the first end of the first planar segment 5272 can be connected by a first connecting segment 5271. The first connecting segment 5271 can be inclined relative to the first planar segment. The first bent segment 5273 can be connected to the second end of the first planar segment 5272. The first bent segment 5273 can extend towards the direction closer to the first sub-segment, and the first bent segment 5273 can also be inclined relative to the first planar segment, so that the first bent segment 5273, the first planar segment 5272, and the first connecting segment 5271 can form a general trapezoidal shape, and the first protruding segment and the first sub-segment can form a first space 540. Figure 15 In the first space 540, a first opening 541 can be formed between the left end of the first bent segment 5273 and the left end of the first sub-segment. The first flange 5231 is inserted into the first space 540 through the first opening 541.

[0121] Additionally, the second planar segment can be perpendicular to the first direction for electrical connection with a conductive surface. The second sub-segment 529 and the first end of the second planar segment 5282 can be connected by a second connecting segment 5281. The second connecting segment 5281 can be inclined relative to the second planar segment. A second bent segment 5283 can be connected to the second end of the second planar segment 5282. The second bent segment 5283 can extend towards the direction closer to the second sub-segment, and the second bent segment 5283 can also be inclined relative to the second planar segment, such that the second bent segment 5283, the second planar segment 5282, and the second connecting segment 5281 can form a general trapezoidal shape, and the second protruding segment and the second sub-segment can enclose a second space 550. Figure 15 In the middle, a second opening 551 can be formed between the right end of the second bent segment 5283 and the right end of the second sub-segment. The second flange 5232 is inserted into the second space 550 through the second opening 551.

[0122] In this embodiment, by providing a first connecting segment, a first planar segment, and a first bending segment, a first space can be formed between the first sub-segment and the first protruding segment, facilitating insertion with the first flange, resulting in a simple and compact structure. By providing a second connecting segment, a second planar segment, and a second bending segment, a second space can be formed between the second sub-segment and the second protruding segment, facilitating insertion with the second flange, resulting in a simple and compact structure.

[0123] In some embodiments, such as Figure 14 The first end face of the substrate 523 is provided with a first protrusion 5236 and a second protrusion 5237. The first protrusion 5236 and the second protrusion 5237 can also be along a second direction (the second direction can be perpendicular to the first direction, for example...). Figure 14 The protrusions are spaced apart (in the left and right directions). The first protrusion 5236 can be located on the side of the first conductive terminal 521 opposite to the second conductive terminal 522, and the second protrusion 5237 can be located on the side of the second conductive terminal 522 opposite to the first conductive terminal 521. The first bent section 5273 can abut against the inner side of the first protrusion 5236 facing the second protrusion 5237, and the second bent section 5283 can abut against the inner side of the second protrusion 5237 facing the first protrusion 5236.

[0124] It is understood that the first protrusion 5236 and the second protrusion 5237 can protrude in a direction away from the second end of the substrate, and their protrusion height can be less than the height of the first protrusion 527 and the second protrusion 528 protruding from the substrate, so that the first protrusion 527 and the second protrusion 528 can contact the conductive surface.

[0125] In this embodiment, the first protrusion 5236 can limit the deformation of the first protrusion along the second direction, so that the first protrusion can maintain reliable contact with the conductive surface during insertion. The second protrusion 5237 can limit the deformation of the second protrusion along the second direction, so that the first protrusion can maintain reliable contact with the conductive surface during insertion.

[0126] According to some embodiments of this application, please refer to Figure 9 and Figure 13 The first planar segment 5272 has a plurality of first contact protrusions 5274 protruding in a direction away from the first sub-segment 526, the plurality of first contact protrusions 5274 being used to contact the conductive surface 411, and the second planar segment 5282 has a plurality of second contact protrusions 5284 protruding in a direction away from the second sub-segment 529, the plurality of second contact protrusions 5284 being used to contact the conductive surface 411.

[0127] Multiple first contact protrusions 5274 may also be provided on the surface of the first planar segment 5272 facing the conductive surface 411. The first contact protrusions 5274 can contact the conductive surface 411, thereby realizing the electrical connection between the first conductive terminal and the conductive surface. The number of first contact protrusions 5274 can be 2, 3, 4, 5, etc. The first contact protrusions 5274 can be dot-shaped protrusions, and their shapes can be partially spherical, conical, etc., which can be set according to the actual situation.

[0128] On the surface of the second planar segment 5282 facing the conductive surface 411, multiple second contact protrusions 5284 may also be provided. The second contact protrusions 5284 can contact the conductive surface 411, thereby realizing the electrical connection between the second conductive terminal and the conductive surface. The number of second contact protrusions 5284 can be 2, 3, 4, 5, etc., and the second contact protrusions 5284 can be dot-shaped protrusions, and their shapes can be partially spherical, conical, etc., which can be set according to the actual situation.

[0129] The number and shape of the first contact protrusion 5274 and the second contact protrusion 5284 can be the same, or they can be set as needed.

[0130] In this embodiment, multiple first contact protrusions can improve the contact reliability between the electrical connection part and the first conductive surface, and multiple second contact protrusions can improve the contact reliability between the electrical connection part and the second conductive surface, thereby enabling the first conductive terminal and the second conductive terminal to achieve an effective and stable electrical connection through the electrical connection part.

[0131] According to some embodiments of this application, please refer to Figure 16The first extension 524 is connected to a first conductive element 560 at one end away from the first conductive terminal 521. The first conductive element has a first coiled section 561 for providing a stretching allowance for the movement of the substrate 523 relative to the body 510. The second extension 525 is connected to a second conductive element 570 at one end away from the second conductive terminal 521. The second conductive element 570 has a second coiled section 571 for providing a stretching allowance for the movement of the substrate 523 relative to the body 510.

[0132] In this embodiment, the first extension segment 524 can be connected between the first conductive element 560 and the first conductive terminal 521. In some embodiments, the first extension segment 524 can form a first connecting end at the second end of the base 523, such as a welding cup or similar structure. This first connecting end can be connected to the first conductive element 560 by welding or other means. The first conductive element 560 can be a conductive wire or conductive sheet, and can be connected to the corresponding internal circuit of the battery device to form an electrical circuit. The first conductive element 560 can have a first curled segment 561, which can be a flexible or elastic segment, for example... Figure 16 In this embodiment, the first coiled segment 561 can be spiral-shaped. During the movement of the floating part 520 relative to the body 510, the first coiled segment 561 can be stretched or compressed, thereby providing a stretching allowance for the movement of the floating part 520. This can improve the situation where excessive stretching of the first conductive element leads to electrical connection failure. Of course, in other embodiments, the first coiled segment can also be a flexible segment bent into other shapes, which can be set according to the actual situation.

[0133] The second extension 525 can be connected between the second conductive element 570 and the second conductive terminal 522. In some embodiments, the second extension 525 can form a second connection end at the second end of the base 523, such as a welding cup or similar structure. This second connection end can be connected to the second conductive element 570 by welding or other means. The second conductive element 570 can be a conductive wire or conductive sheet, and can be connected to the corresponding internal circuitry of the battery device to form an electrical circuit. The second conductive element 570 can have a second coiled section 571, which can be a flexible or elastic section, for example... Figure 16 In this embodiment, the second coiled segment 571 can be spiral-shaped. During the movement of the floating part 520 relative to the body 510, the second coiled segment 571 can be stretched or compressed, thereby providing a stretching allowance for the movement of the floating part 520 and preventing excessive stretching of the second conductive element, which could lead to electrical connection failure. Of course, in other embodiments, the second coiled segment can also be a flexible segment bent into other shapes, which can be set according to the actual situation.

[0134] In this embodiment, by providing a first conductive element with a first curled segment and a second conductive element with a second curled segment, sufficient expansion and contraction margin can be provided for the movement of the floating part relative to the main body, thereby improving the electrical connection failure problem caused by excessive stretching of the first and second conductive elements and improving the reliability of the connection.

[0135] Additionally, it is understood that in other embodiments, the first extension may extend beyond the second end of the base, and the connector 30 may also have a conductive connecting sleeve. One end of the connecting sleeve may be connected to a corresponding internal circuit of the battery device. The first extension can slide telescopically within the connecting sleeve, thereby achieving electrical connection with the corresponding internal circuit through the connecting sleeve, while also providing movement space for the floating part relative to the body. Similarly, the second extension may also be connected to a corresponding internal circuit of the battery device through a connecting sleeve.

[0136] According to some embodiments of this application, the limiting body 590 includes a first segment 591 and a second segment 592 connected sequentially along a first direction X. The first segment 591 is located inside the second segment 592 away from the first conductive terminal 521, and the second segment 592 has a stepped surface 593 protruding from the first segment 591 in a direction perpendicular to the first direction X. An elastic member 530 is sleeved outside the first segment 591 and abuts against the stepped surface 593.

[0137] like Figure 13 In this embodiment, the limiting body 590 may include two segments disposed along the first direction X. The second segment 592 may be located inside the cavity 523 facing the first and second conductive terminals, for example, inside the first sub-segment 526 and the second sub-segment 529. In some embodiments, the second segment 592 may be connected to the substrate, or the second segment 592 may abut against the first and second conductive terminals by means of the elastic force of the elastic member.

[0138] The first segment 591 can be located on the side of the second segment 592 opposite to the first conductive terminal and the second conductive terminal. The cross-sectional area of ​​the first segment 591 can be smaller than the cross-sectional area of ​​the second segment 592, so that the second segment 592 can have a stepped surface 593 protruding from the side surface of the first segment 591. The stepped surface 593 can be perpendicular to the first direction X.

[0139] The elastic element 530 can be fitted onto the first segment 591 and abut against the step surface 593, thereby limiting the movement of the elastic element in a plane perpendicular to the first direction.

[0140] In this embodiment, the first segment can be used to install the elastic element, and the second segment can be used to isolate the elastic element from the first conductive terminal (second conductive terminal), thereby improving the situation where the elastic element contacts the first conductive terminal and the second conductive terminal and conducts electricity, and simplifying the structure of the elastic element.

[0141] According to some embodiments of this application, please refer to Figure 13 The second connector 500 further includes a sleeve 580, which is detachably connected to the body 510, and the floating part 520 is movably connected inside the sleeve 580.

[0142] In this embodiment, the sleeve 580 can extend along the first direction X into a cylindrical structure with openings at both ends. The sleeve 580 can be fixedly connected to the body 510. For example, the body 510 can have a receiving area, and the sleeve 580 can be installed in the receiving area by common detachable methods, such as screw connection or snap connection. The sleeve 580 can be made of insulating materials such as plastic or rubber.

[0143] The floating part 520 can be connected inside the sleeve 580, and the floating part 520 can move relative to the sleeve 580, thereby realizing the movement of the floating part 520 relative to the body.

[0144] In this embodiment, by setting a sleeve, the sleeve and the floating part can be disassembled and assembled as a single component, which is convenient for replacement and can improve the versatility of the component, making it widely applicable to various high-voltage interlocking structures.

[0145] Based on some embodiments of this application, continue to refer to Figure 13 The second end of the base 523 has a boss 5233 protruding outward from the outer side of the base 523. The boss 5233 has a first limiting surface 5234 facing the first end of the base 523. The inner surface of the sleeve 580 has a second limiting surface 581 facing the first limiting surface 5234. The first limiting surface 5234 is used to abut against the second limiting surface 581 to restrict the movement of the base 523 relative to the sleeve 580.

[0146] The second end of the substrate 523 may have a boss 5233, which may protrude from the outer surface of the substrate 523. The boss 5233 may have a first limiting surface 5234 facing the conductive surface 411. The first limiting surface 5234 may be perpendicular to the first direction X.

[0147] The inner wall of the sleeve 580 may also have a second limiting surface 581 facing the first limiting surface 5234, and the second limiting surface 581 may be parallel to the first limiting surface.

[0148] It is understandable that the sleeve 580 may also have two cavities with different cross-sectional areas, and the two cavities can be connected by the second limiting surface 581.

[0149] When the first connector 400 and the second connector 500 are separated, the boss 5233 can abut against the second limiting surface 581 under the action of the elastic member 530, that is, the first limiting surface 5234 and the second limiting surface 581 abut against each other. When the first connector 400 and the second connector 500 are inserted, the conductive surface 411 contacts the first conductive terminal and the second conductive terminal, and compresses the elastic member 530, so that the floating part 520 moves relative to the sleeve 580. At this time, the first limiting surface 5234 and the second limiting surface 581 can be separated.

[0150] In this embodiment, by providing a boss at the second end of the base and a second limiting surface in the sleeve, the first limiting surface of the boss can abut against the second limiting surface, thereby restricting the movement of the floating part relative to the sleeve. This method has a simple structure and can achieve movement restriction without introducing additional components. At the same time, it can prevent the floating part from detaching from the sleeve, improving the structural reliability of the connector.

[0151] According to some embodiments of this application, such as Figure 8 The second connector 500 also includes a sleeve 580, and a floating part 520 is movably connected inside the sleeve 580; the electrical connection part 410 includes a first electrical connection segment 420 and a second electrical connection segment 430 connected to the first electrical connection segment 420. The end of the first electrical connection segment 420 facing away from the second electrical connection segment 430 has a conductive surface 411, and the second electrical connection segment 430 protrudes outward from the outer surface of the first electrical connection segment 420; when the first connector 400 and the second connector 500 are connected, the first electrical connection segment 420 is inserted into the sleeve 580, and the second electrical connection segment 430 abuts against the end face of the sleeve 580.

[0152] In this embodiment, the electrical connection portion 410 may include a first electrical connection segment 420 and a second electrical connection segment 430 connected along the first direction X.

[0153] The cross-sectional area of ​​the first electrical connection segment 420 can be smaller than the cross-sectional area of ​​the second electrical connection segment 430, so that the second electrical connection segment 430 can protrude outward from the outer side of the first electrical connection segment 420.

[0154] In this embodiment, the side of the second electrical connection segment 430 facing away from the first electrical connection segment 420 can be connected to the first connector. A conductive surface 411 can be provided on the side of the first electrical connection segment 420 facing away from the second electrical connection segment 430.

[0155] With the end of the sleeve 580 facing the first connector 400 as the first end of the sleeve 580, the cross-sectional area of ​​the first electrical connection segment 420 can be smaller than the cross-sectional area of ​​the inner surface of the first end of the sleeve 580, while the cross-sectional area of ​​the second electrical connection segment 430 can be larger than the cross-sectional area of ​​the inner surface of the first end of the sleeve 580, so that the first electrical connection segment 420 can extend into the first end of the sleeve 580, while the second electrical connection segment 430 cannot extend into the first end of the sleeve 580.

[0156] In some implementations, when the first connector 400 is separated from the second connector 500, the first conductive terminal 521 and the second conductive terminal 522 can be located inside the sleeve 580 or flush with the end face of the sleeve 580, thus allowing the sleeve 580 to protect the first and second conductive terminals. When the first connector 400 is inserted into the second connector 500, the first electrical connection section 420 can extend into the sleeve 580 to contact the first and second conductive terminals, and the end face of the sleeve 580 can abut against the second electrical connection section 430. This limits the insertion depth of the electrical connection into the sleeve, ensuring reliable contact between the conductive surfaces and the first and second conductive terminals while mitigating excessive wear caused by excessive insertion depth. Furthermore, since the end face of the sleeve can abut against the second electrical connection section, electrical circuit continuity can be achieved simply by ensuring contact between the conductive surfaces and the first and second conductive terminals, eliminating the need to control the insertion depth and simplifying operation.

[0157] In this embodiment, by providing a first electrical connection segment and a second electrical connection segment, when the first connector and the second connector are inserted, the first electrical connection segment can be inserted into the sleeve to achieve the connection between the electrical connection part and the first conductive terminal and the second conductive terminal. The second electrical connection segment can abut against the outer end face of the sleeve, thereby limiting the insertion depth of the electrical connection part into the sleeve. It is understood that the greater the insertion depth, the smaller the contact resistance between the electrical connection part and the first and second conductive terminals; however, the more severe the wear on the components. The second electrical connection segment can balance the contact resistance and the wear on the components, minimizing the contact resistance while reducing wear on the components.

[0158] According to some embodiments of this application, please refer to Figure 13 and Figure 14 A first chamfer 4111 is provided between the conductive surface 411 and the outer surface of the electrical connection portion 410; and / or, a second chamfer 582 is provided between the inner surface of the sleeve 580 and the end face of the second electrical connection segment 430 facing the sleeve 580.

[0159] like Figure 13 and Figure 14In the process, the edge of the conductive surface 411 may have a first chamfer 4111, which may be rounded or flat.

[0160] The first chamfer 4111 allows the end of the electrical connection 410 to have a gradually expanding structure along the direction close to the second electrical connection segment, thereby playing a guiding role and allowing the first electrical connection segment to be smoothly inserted into the sleeve.

[0161] like Figure 13 As shown, the inner surface of the sleeve 580 has a second chamfer 582 between it and the end face used to abut against the second electrical connection section 430. The second chamfer 582 can be rounded or flat.

[0162] The second chamfer 582 makes the opening at the end of the sleeve 580 gradually expand from the inside to the outside, thus playing a guiding role and allowing the first electrical connection section to be smoothly inserted into the sleeve.

[0163] It is understood that in this embodiment, the first chamfer 4111 may be provided only on the electrical connection part 410, or the second chamfer 582 may be provided only in the sleeve 580. Of course, the first chamfer 4111 may be provided on the first electrical connection part 410 and the second chamfer 582 may be provided in the sleeve 580 at the same time.

[0164] In this embodiment, by setting a first chamfer and / or a second chamfer, it can play a guiding role in the process of interlocking the electrical connection part and the sleeve, which can reduce the requirements for the fitting accuracy during the interlocking process of the electrical connection part and the sleeve, and smoothly realize the interlocking of the two.

[0165] According to some embodiments of this application, the second connector 500 is used to connect to the housing 20 of the battery device 100, and the first connector 400 is used to connect to an electrical component.

[0166] In this embodiment, the second connector 500 can be installed outside the housing 20, and the first connector 400 can be connected to an electrical component in the electrical device. For example, the electrical device is a vehicle 1000, and its electrical component can be the entire vehicle. The first connector 400 can be plugged into the second connector 500, thereby connecting the high-voltage circuit of the entire vehicle and the battery device 100. It can be understood that when the electrical device is other equipment outside the vehicle, the electrical component can also be other corresponding components of the electrical device.

[0167] By placing the second connector in the housing and connecting the first connector to the electrical components, the electrical components can be powered by a battery device, and the safety and reliability of the power supply can be improved through the high-voltage interlock function of the connector.

[0168] This application embodiment also provides a battery device 100, such as Figure 2As shown, the battery device 100 may include a housing 20, a connector 30 as described in any of the above embodiments, and at least one battery cell 11; at least one battery cell is housed in the housing 20; and a second plug 500 of the connector 30 is connected to the housing 20.

[0169] It is understood that the second connector 500 can be connected to the outer surface of the housing 20. The battery device 100 provided in this application, by using any of the aforementioned connectors, possesses all the beneficial effects of the connector 30, which will not be elaborated further here.

[0170] This application also provides an electrical device, which includes a connector 30 as described in any of the above embodiments; or, the electrical device includes a battery device 100 as described in the above embodiments, the battery device 100 being used to provide electrical energy.

[0171] The electrical devices include vehicles (such as cars, electric vehicles, ships, spacecraft, etc.), display devices (such as mobile phones, tablets, laptops, etc.), electric toys, power tools, etc. In some embodiments, the electrical device may include a battery device and an electrical component. The battery device may include a connector 30, and the battery device 100 can be used to provide power to the electrical component through the connector. In other embodiments, the electrical device may include a battery device, a connector, and an electrical component, and the battery device can provide power to the electrical component through the connector 30.

[0172] It is understood that the electrical device provided in this application, by using any of the aforementioned connectors 30 or battery devices 100, has all the beneficial effects of the aforementioned connectors 30 or battery devices 100, which will not be elaborated here.

[0173] This application provides an energy storage device, which includes the connector 30 in the above embodiments; or, the energy storage device includes a battery device 100, which is used to store electrical energy.

[0174] Energy storage devices may include, but are not limited to, centralized energy storage devices (such as containerized energy storage devices), distributed energy storage devices, mobile energy storage devices, wearable energy storage devices, etc. When the energy storage device includes a battery device 100, the battery device 100 can be used to store electrical energy.

[0175] It is understood that the energy storage device provided in this application, by using any of the aforementioned connectors 30 or battery devices 100, has all the beneficial effects of the aforementioned connectors 30 or battery devices 100, which will not be elaborated here.

[0176] Please refer to Figures 2 to 16This application provides a connector 30, including: a first plug member 400 and a second plug member 500; the first plug member 400 includes an electrical connection portion 410 having a conductive surface 411; the second plug member 500 includes a body 510, a floating portion 520 movably connected to the body 510, and an elastic member 530 connected between the body 510 and the floating portion 520. The floating portion 520 includes a first conductive terminal 521 and a second conductive terminal 522 spaced apart from each other, and a base 523 movably connected to the body 510 along a first direction X. The first conductive terminal 521 and the second conductive terminal 522 are used to form an electrical circuit. Terminals 522 protrude from the first end of the base 523 along the first direction X. The base 523 has a cavity 5235 inside. A limiting body 590 is provided on the inner side of the first conductive terminal 521 facing the cavity 5235. At least a portion of the elastic member 530 is accommodated in the cavity 5235 and the elastic member 530 is sleeved on the limiting body 590. The first plug-in member 400 can be plugged into the second plug-in member 500 so that the first conductive terminal 521 and the second conductive terminal 522 respectively contact the conductive surface 411, thereby connecting the electrical circuit. The elastic member 530 is used to provide a force to the floating part 520 so that the first conductive terminal 521 and the second conductive terminal 522 respectively keep in contact with the conductive surface 411.

[0177] The first connector 400 can be connected to electrical components such as the vehicle body, the second connector 500 can be connected to the outside of the housing 20 of the battery device 100, and the connector 30 can be a high-voltage connector for connecting a high-voltage circuit, so that the battery device can supply power to the electrical components.

[0178] In this embodiment, the second connector 500 further includes a sleeve 580, which is detachably connected to the body 510, and the floating part 520 is movably connected within the sleeve 580. The base 523 is embedded with a first extension section 524 and a second extension section 525. One end of the first extension section 524 is connected to the first conductive terminal 521, and the other end of the first extension section 524 is exposed at the second end of the base 523 along the first direction X. One end of the second extension section 525 is connected to the second conductive terminal 522, and the other end of the second extension section 525 is exposed at the second end of the base 523.

[0179] It is understood that the first extension 524 and the second extension 525 of the floating part can be connected to the corresponding internal circuit (e.g., low-voltage wiring harness) inside the battery device 100 to form an electrical circuit and transmit interlocking on or off signals. The electrical connection part 410 can be fixed in the first connector 400 by snap-fit ​​or insert injection molding.

[0180] When the first connector 400 and the second connector 500 are inserted into place, the conductive surface of the electrical connection part 410 can achieve interlocking conduction with the first and second conductive terminals through an interference fit using elastic force. Furthermore, since the conductive surface is a large-area planar structure, the first and second conductive terminals make contact with this large surface. Compared to pin and socket connections, this eliminates the need for high-precision guidance, lowers the requirements for mating accuracy, and reduces the likelihood of abnormal mating between the conductive terminals and the conductive surface, thus improving the reliability of the connector.

[0181] By incorporating an elastic element connecting the floating part and the main body, a positive force can be simultaneously applied to both the first and second conductive terminals. This ensures that both terminals maintain contact with the conductive surface, maintaining normal impedance in the electrical circuit and ensuring the interlocking function functions correctly, thus improving the connector's reliability. Furthermore, by installing a limiting body within the cavity, the elastic element, fitted within the limiting body, reduces its swaying or displacement under stress, minimizing wear between the elastic element and the base. This also enhances the smoothness and reliability of the floating part's movement.

[0182] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A connector, characterized in that, include: The first connector includes an electrical connection portion having a conductive surface; The second connector includes a body, a floating portion movably connected to the body, and an elastic member connected between the body and the floating portion. The floating portion includes a first conductive terminal and a second conductive terminal spaced apart from each other, and a base movably connected to the body along a first direction. The first conductive terminal and the second conductive terminal are used to form an electrical circuit. The first conductive terminal and the second conductive terminal are respectively protruding from a first end of the base along the first direction, and the base has a cavity inside. A limiting body is provided on the inner side of the first conductive terminal facing the cavity. At least a portion of the elastic member is accommodated in the cavity, and the elastic member is sleeved on the limiting body. The first connector can be plugged into the second connector so that the first conductive terminal and the second conductive terminal respectively contact the conductive surface, thereby connecting the electrical circuit. The elastic member is used to provide a force to the floating part so that the first conductive terminal and the second conductive terminal respectively keep in contact with the conductive surface. The conductive surface is used to face the second plug-in when the first plug-in and the second plug-in are inserted together; and the first end of the base has a first flange and a second flange, both of which protrude inward from the inner surface of the base. The first flange is inserted into the first conductive terminal, and the second flange is inserted into the second conductive terminal.

2. The connector according to claim 1, characterized in that, The substrate is embedded with a first extension segment and a second extension segment. One end of the first extension segment is connected to the first conductive terminal, and the other end of the first extension segment is exposed at a second end of the substrate along the first direction. One end of the second extension segment is connected to the second conductive terminal, and the other end of the second extension segment is exposed at a second end of the substrate.

3. The connector according to claim 2, characterized in that, The first conductive terminal includes a first sub-segment connected to the first extension segment and a first protruding segment protruding from and connected to the first sub-segment. The first protruding segment protrudes from the first end of the substrate, and a first space is provided between the first protruding segment and the first sub-segment. The first flange is inserted into the first space. The second conductive terminal includes a second sub-segment connected to the second extension segment and a second protruding segment protruding from and connected to the second sub-segment. The second protruding segment protrudes from the first end of the substrate, and there is a second space between the second protruding segment and the second sub-segment. The second flange is inserted into the second space.

4. The connector according to claim 3, characterized in that, The first protruding segment includes a first connecting segment, a first planar segment, and a first bent segment connected in sequence. The first connecting segment is connected to the first sub-segment. The first planar segment is arranged perpendicular to the first direction. The first bent segment and the first sub-segment have a first opening. The first flange is inserted into the first space through the first opening. The second protruding segment includes a second connecting segment, a second planar segment, and a second bending segment connected in sequence. The second connecting segment is connected to the second sub-segment. The second planar segment is arranged perpendicular to the first direction. The second bending segment and the second sub-segment have a second opening. The second flange is inserted into the second space through the second opening.

5. The connector according to claim 4, characterized in that, The first planar segment has a plurality of first contact protrusions protruding in a direction away from the first sub-segment, the plurality of first contact protrusions being used to contact the conductive surface, and the second planar segment has a plurality of second contact protrusions protruding in a direction away from the second sub-segment, the plurality of second contact protrusions being used to contact the conductive surface.

6. The connector according to claim 2, characterized in that, The first extension is connected to a first conductive element at one end away from the first conductive terminal. The first conductive element has a first coiled section for providing a stretching allowance for the movement of the substrate relative to the body. The second extension is connected to a second conductive element at one end away from the second conductive terminal. The second conductive element has a second coiled section for providing a stretching allowance for the movement of the substrate relative to the body.

7. The connector according to any one of claims 1-6, characterized in that, The limiting body includes a first segment and a second segment connected sequentially along the first direction. The first segment is located inside the second segment away from the first conductive terminal, and the second segment has a stepped surface protruding from the first segment in a direction perpendicular to the first direction. The elastic element is sleeved outside the first segment and abuts against the stepped surface.

8. The connector according to any one of claims 1-6, characterized in that, The second connector further includes a sleeve, which is detachably connected to the body, and the floating part is movably connected inside the sleeve.

9. The connector according to claim 8, characterized in that, The second end of the base has a boss that protrudes outward from the outer surface of the base. The boss has a first limiting surface facing the first end of the base. The inner surface of the sleeve has a second limiting surface facing the first limiting surface. The first limiting surface is used to abut against the second limiting surface to restrict the movement of the base relative to the sleeve.

10. The connector according to any one of claims 1-6, characterized in that, The second connector further includes a sleeve, and the floating part is movably connected inside the sleeve; The electrical connection portion includes a first electrical connection segment and a second electrical connection segment connected to the first electrical connection segment. The first electrical connection segment has the conductive surface at one end away from the second electrical connection segment, and the second electrical connection segment protrudes outward from the outer surface of the first electrical connection segment. When the first connector and the second connector are connected, the first electrical connection segment is inserted into the sleeve, and the second electrical connection segment abuts against the end face of the sleeve.

11. The connector according to claim 10, characterized in that, The conductive surface has a first chamfer with the outer surface of the electrical connection portion; and / or, The inner surface of the sleeve has a second chamfer between it and the end face of the sleeve facing the second electrical connection section.

12. The connector according to any one of claims 1-6, characterized in that, The second connector is used to connect to the housing of the battery device, and the first connector is used to connect to the electrical components.

13. A battery device, characterized in that, include: At least one battery cell; A housing, in which at least one battery cell is housed; The connector as described in any one of claims 1-12, wherein the second insertion part of the connector is connected to the housing.

14. An electrical appliance, characterized in that, The electrical device includes a connector as described in any one of claims 1-12; or, the electrical device includes a battery device as described in claim 13, the battery device being used to provide electrical energy.

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