Connector, battery device, and electric device

Abstract

The application provides a connector, a battery device and a power consumption device, and belongs to the technical field of batteries. The connector comprises a connector body and a cover body. The connector body is used for connecting the battery device and a power consumption component to form an electric circuit between the battery device and the power consumption component. The connector body is provided with a containing cavity. The containing cavity is provided with a first conductive terminal and a second conductive terminal which are separated from each other. The cover body is rotatably connected to the connector body. The cover body is provided with an electric connection part on the inner side of the containing cavity. The cover body has a closed state and an open state. In the closed state, the cover body closes the opening of the containing cavity. The first conductive terminal and the second conductive terminal are electrically connected by respectively contacting the electric connection part, so as to conduct the electric circuit. In the open state, the cover body exposes the containing cavity. The first conductive terminal and the second conductive terminal are separated from the electric connection part, so as to disconnect the electric circuit. The operation risk is reduced, and the operation safety of the connector is improved.

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 order to supply power from the battery to the vehicle, a connector is usually installed between the battery and the vehicle to enable power supply to the vehicle. How to improve the electrical safety of the connector is an issue worthy of attention. Utility Model Content

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

[0005] An embodiment of the first aspect of this application provides a connector, including: a connector body and a cover. The connector body is used to connect a battery device and an electrical component to form an electrical circuit between the battery device and the electrical component. The connector body is provided with a receiving cavity, and a first conductive terminal and a second conductive terminal spaced apart from each other are provided in the receiving cavity. The cover is rotatably connected to the connector body, and an electrical connection portion is provided on the inner side of the cover facing the receiving cavity. The cover has a closed state and an open state. In the closed state, the cover closes the opening of the receiving cavity, and the first conductive terminal and the second conductive terminal are electrically connected by contacting the electrical connection portion respectively, thereby conducting the electrical circuit. In the open state, the cover exposes the receiving cavity, and the first conductive terminal and the second conductive terminal are separated from the electrical connection portion respectively, thereby disconnecting the electrical circuit.

[0006] With the connector provided in this embodiment, when disassembling or installing the battery device, the electrical circuit is disconnected when the cover is open and connected when the cover is closed, thus realizing cover-opening interlock. Compared with the method in related technologies, the operator does not need to open the cover first and then manually disconnect the low-voltage interlock circuit, making the operation simpler and more convenient. At the same time, opening the cover can disconnect the electrical circuit, reducing the risk of electric shock to the operator during maintenance or installation and improving the operator's operational safety.

[0007] In some embodiments, the connector further includes: a cylindrical body connected to the inner side of the cover and an elastic member housed in the cylindrical body, the cylindrical body extending along a first direction perpendicular to the cover and being movable relative to the cover along the first direction, an electrical connection portion connected to one end of the cylindrical body away from the cover; the elastic member being connected between the electrical connection portion and the inner surface of the cover, the elastic member being used to apply an elastic force to the electrical connection portion in a closed state, so that the electrical connection portion presses against the first conductive terminal and the second conductive terminal.

[0008] By setting the first positioning post and the second positioning post, the swaying of the elastic element in a plane perpendicular to the first direction can be limited, which can avoid the elastic element colliding with the inner surface of the cylindrical body, reduce wear, and improve the reliability of the elastic element.

[0009] In some embodiments, the cylindrical body and the electrical connection portion are integrally formed by a molding process.

[0010] The cylindrical body, manufactured using a one-piece molding process, is tightly integrated with the electrical connection. Compared to assembly using conventional methods, there is no wobbling between the cylindrical body and the electrical connection. During the pressing process between the electrical connection and the two conductive terminals, the movement of the electrical connection in the plane parallel to the cover body can be reduced, thus improving the reliability of the contact between the electrical connection and the conductive terminals.

[0011] In some embodiments, the first conductive terminal has a first conductive surface, and the second conductive terminal has a second conductive surface; the electrical connection portion includes a first planar segment and a second planar segment, both of which are parallel to the cover, and the first planar segment has a plurality of first contact protrusions protruding in a direction away from the cover, and the second planar segment has a plurality of second contact protrusions protruding in a direction away from the cover; in the closed state, the first planar segment faces the first conductive surface, and the plurality of first contact protrusions are in contact with the first conductive surface, and the second planar segment faces the second conductive surface, and the plurality of second contact protrusions are in contact with the second conductive surface.

[0012] 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.

[0013] In some embodiments, in the closed state, the outer edge of the first conductive surface protrudes outward beyond the outer edge of the first planar segment, and the outer edge of the second conductive surface protrudes outward beyond the outer edge of the second planar segment.

[0014] By setting the first conductive surface to protrude from the first planar segment and the second conductive surface to protrude from the second planar segment, when the cover is closed, the first conductive terminal and the second conductive terminal can absorb the deviation of the electrical connection part moving in the plane parallel to the cover, making the connection between the electrical connection part and the first conductive terminal, as well as between the electrical connection part and the second conductive terminal, more reliable.

[0015] In some embodiments, the electrical connection portion further includes a base disposed parallel to the cover, a first extension segment connected between the base and the first planar segment, a first bent segment connected to one end of the first planar segment away from the first extension segment, a second extension segment connected between the base and the second planar segment, and a second bent segment connected to one end of the second planar segment away from the second extension segment; the first bent segment and the second bent segment both extend toward the cover, and the base is located between the first planar segment and the cover.

[0016] In this embodiment, the electrical connection part is provided with a base, a first extension section, a second extension section, a first bending section and a second bending section. The first planar section and the second planar section can have a certain deformation capability. During the process of closing the cover, the first planar section and the second planar section can undergo a certain deformation under the pressure of the elastic element and the two conductive terminals, which further improves the reliability of their connection with the corresponding conductive terminals.

[0017] In some embodiments, the first conductive terminal includes a first conductive segment extending along a second direction and a third planar segment disposed perpendicular to the second direction. One end of the third planar segment is connected to the first conductive segment, and the other end of the third planar segment extends toward a direction close to the second conductive terminal. The third planar segment is used to contact and connect with the electrical connection portion. The second conductive terminal includes a second conductive segment extending along the second direction and a fourth planar segment disposed perpendicular to the second direction. One end of the fourth planar segment is connected to the second conductive segment, and the other end of the fourth planar segment extends toward a direction close to the first conductive terminal. The fourth planar segment is used to contact and connect with the electrical connection portion. The second direction is a direction perpendicular to the cover in the closed state.

[0018] In this embodiment, by extending the third planar segment away from the first conductive segment towards the direction closer to the second conductive terminal, and by extending the fourth planar segment away from the second conductive segment towards the direction closer to the first conductive terminal, the volume of the conductive terminal can be reduced. Simultaneously, since the first and second planar segments of the electrical connection portion are large-area structures, with the first conductive surface protruding from the first planar segment and the second conductive surface protruding from the second planar segment, the connection reliability between the conductive terminal and the electrical connection portion can be maintained even while reducing the volume of the conductive terminal.

[0019] In some embodiments, the connector further includes an insulating isolator, the insulating isolator including a first isolator segment disposed between a first conductive terminal and a second conductive terminal, the first isolator segment protruding from the first conductive terminal and the second conductive terminal in a third direction; wherein, the third direction is perpendicular to the cover in the closed state and points from the first isolator segment to the cover.

[0020] The first isolation section can effectively isolate the first conductive terminal and the second conductive terminal, preventing direct contact between them due to vibration or bumps, thus further improving the reliability of the cover opening interlock function.

[0021] In some embodiments, the insulating isolator further includes two second isolating segments disposed opposite to each other, a first isolating segment disposed between the two second isolating segments, and the two ends of the first isolating segment are respectively connected to the two second isolating segments. The first isolating segment divides the space between the two second isolating segments into a first space and a second space. A first conductive terminal is disposed in the first space and a second conductive terminal is disposed in the second space. The second isolating segment protrudes from the first conductive terminal and the second conductive terminal in a third direction.

[0022] The first and second isolation sections not only isolate the first and second conductive terminals, but also prevent other components in the cavity from directly contacting the first and second conductive terminals, thereby improving the reliability of the circuit containing the first and second conductive terminals.

[0023] In some embodiments, the insulating member has a first end face at one end along a third direction, a first chamfer is provided between the first end face and the inner wall of the first space, and a second chamfer is provided between the first end face and the inner wall of the second space.

[0024] In this embodiment, the first chamfer can make the opening of the first space for exposing the first conductive surface gradually increase from the inside to the outside, and the second chamfer can make the opening of the second space for exposing the second conductive surface gradually increase from the inside to the outside. This can provide guidance for the contact between the conductive terminal and the electrical connection part, avoid the situation where the electrical connection part cannot make close contact with the conductive terminal due to interference between the electrical connection part and the insulating isolation part, and improve reliability.

[0025] In some embodiments, the first conductive terminal, the second conductive terminal, and the electrical connection portion are used to form at least a portion of the control circuit, which is used to control the on / off state of the electrical circuit.

[0026] In this embodiment, the control circuit can be directly controlled by opening and closing the cover, thereby indirectly controlling the on / off state of the high-voltage circuit. This eliminates the need for operators to directly manipulate the high-voltage circuit, improving operational safety. Simultaneously, the control side employs a low-voltage control circuit, separate from the high-voltage circuit, enhancing system reliability.

[0027] An embodiment of the second aspect of this application provides a battery device, including: a housing, a battery cell housed in the housing, and a connector as described in the above embodiments; the housing is provided with a connector base, and the connector is inserted into the connector base.

[0028] An embodiment of the third aspect of this application provides an electrical device, including the connector or the battery device described in the above embodiments.

[0029] 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

[0030] 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.

[0031] Figure 1 This is a schematic diagram of the vehicle structure according to some embodiments of this application; Figure 2 This is an exploded view of the battery device provided in some embodiments of this application; Figure 3 This is a schematic diagram showing the installation position of the connector in some embodiments of this application; Figure 4 for Figure 3 A schematic diagram of the decomposition process; Figure 5 for Figure 3 A schematic diagram of the connector in a closed state; Figure 6 for Figure 3 A schematic diagram of the connector in the open position; Figure 7 for Figure 3 A structural diagram showing the connector in the open position from another angle; Figure 8 for Figure 3 Top view of the connector; Figure 9 for Figure 6 A magnified view of a section at point A in the middle; Figure 10 for Figure 7 Local wind speed map at point B; Figure 11 for Figure 8 Sectional view of CC; Figure 12 This is a schematic diagram illustrating the working principle of the connector in the embodiments of this application; Figure 13 for Figure 11 A magnified view of a portion of the image.

[0032] Explanation of reference numerals in the attached figures: 1000 vehicles; Battery assembly 100, high voltage zone 110, connector base 120, first plug terminal 121, controller 200, motor 300; Casing 20, first part 21, second part 22, battery cell assembly 10, battery cell 11; Connector 400, connector body 410, receiving cavity 411, rotating shaft 412, fastener 413; First conductive terminal 420, first conductive surface 421, first conductive segment 422, third planar segment 423; Second conductive terminal 430, second conductive surface 431, second conductive segment 432, fourth planar segment 433; Cover 440, second positioning post 441, sleeve 442, limiting surface 443; Electrical connection 450, first planar section 4511, first bent section 4512, first extension section 4513, second planar section 4521, second bent section 4522, second extension section 4523, base 453, middle section 4531, ear 4532, first contact protrusion 456, second contact protrusion 457; Elastic element 460, cylindrical body 470, boss 471, first positioning post 472, abutting surface 4721, groove 473, protrusion 474; Insulating separator 480, first insulating section 481, second insulating section 482, first space 483, second space 484, first end face 485, first chamfer 486, second chamfer 487; High-voltage circuit 500, relay high-voltage circuit 510, fuse high-voltage circuit 520; Control circuit 600, relay control circuit 610, fuse control circuit 620. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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).

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Taking electric vehicles as an example, in order for the battery device to provide power to the vehicle body, it is necessary to connect the battery device and the vehicle body through a connector to form a high-voltage circuit between the two and transmit high-voltage power to the vehicle body.

[0043] In related technologies, the connector is configured to control the high-voltage circuit through a low-voltage interlock circuit. When maintenance is required, the connector cover must be opened first, and then the low-voltage interlock circuit must be manually disconnected to disconnect the high-voltage circuit. Then the battery device can be separated from the vehicle body for maintenance.

[0044] However, the high-voltage circuit remains conductive during the process of opening the connector cover, which may pose a safety hazard such as electric shock if not handled properly.

[0045] To address at least one of the aforementioned problems, this application provides a connector, a battery device, and an electrical device. The connector includes a connector body and a cover. The connector body connects the battery device and the electrical component to form an electrical circuit between them. The connector body has a receiving cavity containing a first conductive terminal and a second conductive terminal spaced apart from each other. The cover is rotatably connected to the connector body, and an electrical connection portion is provided on the inner side of the cover facing the receiving cavity. The cover has a closed state and an open state. In the closed state, the cover closes the opening of the receiving cavity, and the first and second conductive terminals are electrically connected by contacting the electrical connection portion, thereby conducting the electrical circuit. In the open state, the cover exposes the receiving cavity, and the first and second conductive terminals are separated from the electrical connection portion, thereby disconnecting the electrical circuit. The connector provided in this embodiment automatically disconnects the electrical circuit when the cover is opened, achieving cover-opening interlocking, reducing the risk of electric shock to operators during maintenance or installation, and improving the operational safety of the connector.

[0046] The technical solutions described in this application are applicable to battery devices, electrical devices using battery devices, and energy storage devices. Taking an electrical device as an example, the connector provided in this application can form an electrical circuit between the battery device and the electrical components of the electrical device, and improves the operational safety of the connector through cover-opening interlock.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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. However, for the sake of brevity, the following embodiments will be described using a vehicle as an example of an electrical device.

[0051] 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 requirements of the vehicle 1000 during startup, navigation, and driving. A connector 400 is used to connect the battery device 100 and electrical components of the vehicle 1000, such as the motor 300.

[0052] 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.

[0053] Please refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device provided in some embodiments of this application.

[0054] 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.

[0055] In some embodiments, the battery cell assembly 10 is typically formed by arranging a plurality of battery cells 11.

[0056] 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.

[0057] 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 battery cell assemblies 10, with the battery cell assemblies 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 simple three-dimensional structures such as cuboids, cylinders, or spheres. The material of the housing 20 can be an alloy material such as aluminum alloy or iron alloy, a polymer material such as polycarbonate or polyisocyanurate foam, or a composite material such as glass fiber and epoxy resin.

[0058] 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.

[0059] 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.

[0060] As an example, the housing 20 may include a first portion 21 and a second portion 22. The first portion 21 and the second portion 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 prevent liquids or other foreign objects from affecting the charging or discharging of the battery cell 11. The first portion 21 may be a top cover or a bottom plate.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] Figure 3 This is a schematic diagram showing the installation position of the connector in some embodiments of this application; Figure 4 for Figure 3 A schematic diagram of the decomposition process; Figure 5 for Figure 3 A schematic diagram of the connector in a closed state; Figure 6 for Figure 3 A schematic diagram of the connector in the open position; Figure 7 for Figure 3 A structural diagram showing the connector in the open position from another angle; Figure 8 for Figure 3 Top view of the connector; Figure 9 for Figure 6 A magnified view of a section at point A in the middle; Figure 10 for Figure 7 Local wind speed map at point B; Figure 11 for Figure 8 A sectional view of CC.

[0066] Please refer to Figures 1 to 11 This application provides a connector 400, including a connector body 410 and a cover 440. The connector body 410 is used to connect a battery device 100 and an electrical component to form an electrical circuit between the battery device 100 and the electrical component. The connector body 410 is provided with a receiving cavity 411, and a first conductive terminal 420 and a second conductive terminal 430 separated from each other are provided in the receiving cavity 411. The cover 440 is rotatably connected to the connector body 410, and an electrical connection portion 450 is provided on the inner side of the cover 440 facing the receiving cavity 411. The cover 440 has a closed state and an open state. In the closed state, the cover 440 closes the opening of the receiving cavity 411, and the first conductive terminal 420 and the second conductive terminal 430 are electrically connected by contacting the electrical connection portion 450 respectively, thereby conducting the electrical circuit. In the open state, the cover 440 exposes the receiving cavity 411, and the first conductive terminal 420 and the second conductive terminal 430 are separated from the electrical connection portion 450 respectively, thereby disconnecting the electrical circuit.

[0067] The electrical components can be configured according to the type of electrical equipment or energy storage device using the battery device 100. For example, when the electrical equipment is an electric vehicle, the electrical components can be the vehicle body; or when the electrical equipment is an electric boat, the electrical components can be the boat body, and so on.

[0068] Connector 400 can be used to connect battery device 100 and electrical components, thereby forming an electrical circuit between battery device 100 and electrical components. For example, it can form a high-voltage circuit between battery device 100 and vehicle body, thereby supplying power to vehicle body. It is understood that the electrical circuit can be either a high-voltage circuit or a low-voltage circuit, depending on the actual situation.

[0069] like Figures 3 to 4 As shown, in one specific embodiment, the battery device 100 may have a housing 20, on which a connector base 120 may be provided. One end of the connector 400 can be connected to the vehicle body via a cable or plug-in interface, for example, connected to the vehicle floor. The other end of the connector 400 can be plugged into the connector base 120, thereby realizing an electrical connection between the vehicle body and the battery device 100. It is understood that the number of plug-in terminals between the connector base 120 and the connector 400 can be one or more, for example... Figure 4 The diagram shows two first plug terminals 121 on the connector base 120 (e.g., connected to the positive and negative terminals of a battery device, respectively). The corresponding connector 400 can have two second plug terminals that correspond one-to-one with the first plug terminals 121. The first and second plug terminals can be connected by plugging the connector and the connector base together. Of course, there can be one, three, four, or more first plug terminals, etc. Correspondingly, the number of second plug terminals can be the same as the number of first plug terminals.

[0070] The connector 400 may include a connector body 410 and a cover 440. The connector body 410 is the main component that enables the function of the connector 400. The connector body 410 may have a receiving cavity 411. The cover 440 is rotatably connected to the connector body 410. For example, the cover 440 can be rotatably connected to the connector body 410 via a pivot or other means. The cover 440 can also cover the opening of the receiving cavity 411. The shape of the cover 440 can be adapted to the shape of the opening of the receiving cavity 411; for example, it can be square or circular. The cover 440 can also be made of various materials, such as metal or non-metal. In some embodiments, the cover 440 can be made of plastic, which can reduce the weight of the connector. Furthermore, plastic has insulating properties, which can further improve operational safety.

[0071] It is understandable that the cover 440 can be in a closed state during rotation relative to the connector body 410 (e.g. Figure 5 (as shown) and open state (as shown) Figure 6 As shown), in the closed state, the cover 440 can close the opening of the receiving cavity 411. In the open state, the receiving cavity 411 can be in an exposed state without a cover, that is, the receiving cavity 411 is in communication with the external environment of the connector body 410.

[0072] The receiving cavity 411 may be provided with two conductive terminals, namely a first conductive terminal 420 and a second conductive terminal 430, both of which may be made of conductive material. The first conductive terminal 420 and the second conductive terminal 430 are separated from each other. It can be understood that the separation means that the first conductive terminal and the second conductive terminal are not in direct contact and cannot be electrically connected without external assistance.

[0073] Furthermore, an electrical connection portion 450 is provided on the inner side of the cover 440 facing the receiving cavity 411. The electrical connection portion 450 can be made of a conductive material, and its material can be the same as or different from that of the first conductive terminal. It is understood that the electrical connection portion 450 can move with the cover 440. When the cover 440 is in the closed state, the electrical connection portion 450 can simultaneously contact the first conductive terminal 420 and the second conductive terminal 430, thereby allowing the first conductive terminal 420 to be electrically connected to the second conductive terminal 430 through the electrical connection portion 450, thus completing the electrical circuit. When the cover 440 is in the open state, the electrical connection portion 450 separates from the first conductive terminal 420 and the second conductive terminal 430, and the first conductive terminal 420 and the second conductive terminal 430 are in a state where they cannot be electrically connected, thereby breaking the electrical circuit.

[0074] It is understood that in this embodiment, the first conductive terminal 420 and the second conductive terminal 430 can be directly connected to the electrical circuit, so that the electrical circuit can be directly switched on or off by opening and closing the cover 440. Of course, the first conductive terminal 420 and the second conductive terminal 430 can also be arranged in the control circuit, so that the electrical circuit can be indirectly controlled to close.

[0075] When the battery unit needs to be inspected or removed, the electrical circuit between the battery unit and the electrical components can be disconnected by opening the connector cover. The connector can then be safely pulled out of the connector base, separating the connector from the base, and the battery unit can be removed. Conversely, when the battery unit needs to be installed, the connector cover can be opened first, the battery unit installed into the vehicle body, the connector plugged into the connector base, and then the cover closed to restore the electrical circuit.

[0076] With the connector provided in this embodiment, when disassembling or installing the battery device, the electrical circuit is disconnected when the cover is open and connected when the cover is closed, thus realizing cover-opening interlock. Compared with the method in related technologies, the operator does not need to open the cover first and then manually disconnect the low-voltage interlock circuit, making the operation simpler and more convenient. At the same time, opening the cover can disconnect the electrical circuit, reducing the risk of electric shock to the operator during maintenance or installation and improving the operator's operational safety.

[0077] In addition, in some embodiments, in order to improve the sealing performance of the connector 400, a sealing ring may be provided between the cover 440 and the connector body 410. The sealing ring may be arranged around the opening of the receiving cavity, thereby improving the sealing performance.

[0078] In some embodiments, in order to prevent the cover 440 from being accidentally opened when closed, a fastener 413 may be provided on the cover 440. The fastener 413 can further lock the cover 440 and the connector body 410 when closed.

[0079] In one embodiment, the fastener 413 can be a nut, the cover can have a communicating hole, and the receiving cavity 411 can have a stud that can pass through the communicating hole. The cover can be further locked by the threaded connection between the nut and the stud. Of course, the fastener 413 can also be other structures, such as a hook that can achieve a snap-fit, etc.

[0080] Figure 12 This is a schematic diagram illustrating the working principle of the connector in an embodiment of this application. Please refer to... Figure 12 According to some embodiments of this application, the first conductive terminal 420, the second conductive terminal 430, and the electrical connection portion 450 are used to form at least a portion of the control circuit 600, which is used to control the on / off state of the electrical circuit.

[0081] Figure 12 In this embodiment, the high-voltage circuit 500 can be the electrical circuit. The control circuit 600 can be a low-voltage circuit, and the voltage of the low-voltage circuit is lower than the voltage of the high-voltage circuit 500.

[0082] It is understood that the battery device 100 may include a high-voltage zone 110 capable of outputting high-voltage electricity, a high-voltage circuit 500 connected to the high-voltage zone 110, and a relay and a fuse disposed in the circuit. The relay is controlled by the relay high-voltage circuit 510, and the fuse is controlled by the fuse high-voltage circuit 520.

[0083] The control circuit 600 connects to the relay control circuit 610 and the fuse control circuit 620, and can also be connected to the first conductive terminal 420 and the second conductive terminal 430 in the connector 400.

[0084] The relay control circuit 610 and the relay high-voltage circuit 510 are linked. If the relay control circuit 610 is turned on, the relay high-voltage circuit 510 will also be turned on, and the relay can start working. Otherwise, the relay will not work.

[0085] Similarly, the fuse control circuit 620 and the fuse high-voltage circuit 520 are linked. If the fuse control circuit 620 is turned on, the fuse high-voltage circuit 520 will be turned on, and the fuse can start working. Otherwise, the fuse will not work.

[0086] Therefore, when the cover 440 is in the closed state, the first conductive terminal 420 and the second conductive terminal 430 are electrically connected through the electrical connection part 450, and the control circuit 600 is turned on. This causes the relay control circuit 610 and the fuse control circuit 620 to be turned on, and the relay and fuse start working, thereby turning on the high-voltage circuit 500. Conversely, when the cover 440 is in the open state, the electrical connection part 450 is separated from the first conductive terminal 420 and the second conductive terminal 430, and the electrical connection between the first conductive terminal 420 and the second conductive terminal 430 is broken. This causes the control circuit 600 to be disconnected, thereby disconnecting the relay control circuit 610 and the fuse control circuit 620. The relay and fuse do not work, thereby disconnecting the high-voltage circuit 500.

[0087] In this embodiment, the control circuit can be directly controlled by opening and closing the cover 440, thereby indirectly controlling the on / off state of the high-voltage circuit. This eliminates the need for operators to directly operate the high-voltage circuit, improving operational safety. Simultaneously, the control side employs a low-voltage control circuit, separate from the high-voltage circuit, enhancing system reliability.

[0088] Figure 13 for Figure 11 A partially enlarged view. Please refer to some embodiments of this application. Figure 11 and Figure 13 The connector 400 further includes: a cylindrical body 470 connected to the inside of the cover 440 and an elastic member 460 housed in the cylindrical body 470; the cylindrical body 470 extends along a first direction X perpendicular to the cover 440 and is movable relative to the cover 440 along the first direction X; an electrical connection portion 450 is connected to one end of the cylindrical body 470 away from the cover 440; the elastic member 460 is connected between the electrical connection portion 450 and the inner surface of the cover 440, and the elastic member 460 is used to apply an elastic force to the electrical connection portion 450 in a closed state so that the electrical connection portion 450 presses the first conductive terminal 420 and the second conductive terminal 430.

[0089] The inner side of the cover 440 refers to the side of the cover facing the receiving cavity 411. The cylindrical body 470 can be disposed on this side. The cylindrical body 470 can extend along a first direction X perpendicular to the cover, that is, the axis of the cylindrical body 470 can also be arranged along the first direction X. The cylindrical body 470 can be movably connected to the inner side of the cover 440 along the first direction X. The cross-section of the cylindrical body can be circular or square, depending on the actual situation.

[0090] In one embodiment, a sleeve 442 extending along a first direction X is provided on the inner side of the cover 440. The sleeve 442 is fitted over the cylindrical body 470, and the cover 440 can be fixedly connected to the cylindrical body 470. The cylindrical body 470 can move relative to the cover 440 within the sleeve. The fixed connection between the cover 440 and the cylindrical body 470 can be achieved in various ways, such as by injection molding, extrusion, or other integral molding methods, or by bolts, rivets, or adhesives.

[0091] In addition, the inner surface of the sleeve 442 may have a limiting surface 443 facing the inner surface of the cover 440, and the end of the cylindrical body 470 away from the electrical connection part 450 has a boss 471 protruding from the peripheral side surface of the cylindrical body 470. The boss 471 can move relative to the cover 440 between the limiting surface 443 and the inner surface of the cover 440.

[0092] like Figure 11 As shown, the sleeve 442 may include two segments connected sequentially along the first direction X. The two segments have different diameters, so that a limiting surface 443 can be formed between the two segments. The limiting surface 443 can be parallel to the cover 440. The limiting surface 443 and the inner surface of the cover 440 can limit the boss 471, so that the cylindrical body 470 will not detach from the sleeve 442.

[0093] The electrical connection part 450 can be located at one end of the cylindrical body 470 away from the cover body 440, and the two can be fixedly connected by means of snap-fit, screw-fit, adhesive or other methods.

[0094] The elastic element 460 can be an elastic structure such as a spring or a spring block that can deform under the action of external force. The elastic element 460 can be connected between the electrical connection part 450 and the inner surface of the cover 440. It can be understood that this connection can refer to a direct connection or an indirect connection.

[0095] It is understandable that, in the closed state, the pressure between the electrical connection and the conductive terminal will cause the elastic element to deform and apply an elastic force to the electrical connection 450, so that the electrical connection 450 presses the first conductive terminal 420 and the second conductive terminal 430 together.

[0096] In one embodiment, a first positioning post 472 is provided on the side of the electrical connection portion 450 facing the cover 440, and a second positioning post 441 is provided on the inner surface of the cover 440. Both the first positioning post 472 and the second positioning post 441 can extend along a first direction X, and can be arranged opposite to each other. One end of the elastic member 460 is sleeved on the first positioning post 472, and the other end of the elastic member 460 is sleeved on the second positioning post 441. Figure 11 The elastic element can be a helical spring.

[0097] The first positioning post 472 can be directly fixedly connected to the cylindrical body 470, or the first positioning post 472 can be directly fixedly connected to the electrical connection part.

[0098] In addition, the first positioning post 472 may include two parts with different diameters, and the two parts may have an abutting surface 4721 facing the inner surface of the cover 440, and the elastic member 460 may abut between the abutting surface 4721 and the inner surface of the cover 440.

[0099] By setting the first positioning post and the second positioning post, the swaying of the elastic element 460 in the plane perpendicular to the first direction X can be limited, which can avoid the elastic element from colliding with the inner surface of the cylindrical body, reduce wear, and improve the reliability of the elastic element.

[0100] Because the elastic element 460 can be compressed and deformed under external force, the elastic element 460 allows the electrical connection part 450 to float and connect to the inside of the cover 440 along the first direction X. In the closed state of the cover, the electrical connection part 450 contacts the two conductive terminals (the first conductive terminal 420 and the second conductive terminal 430) and causes the elastic element 460 to be compressed. The elastic element 460 can absorb the deviation between the electrical connection part and the two conductive terminals along the first direction and provide positive pressure to make the contact between the electrical connection part 450 and the first conductive terminal 420 and the second conductive terminal 430 more reliable, thus ensuring the effectiveness of interlocking and electrical connection.

[0101] According to some embodiments of this application, the cylindrical body 470 and the electrical connection portion 450 are integrally formed by an integral molding process.

[0102] In this embodiment, the cylindrical body 470 can be made of insulating materials such as plastic. The electrical connection part 450 is made of conductive material, and the two can be made of different materials.

[0103] Furthermore, the electrical connection 450 and the cylindrical body 470 can be manufactured using a one-piece molding process, for example, by using a dissimilar material one-piece molding process to process two different materials into a single part. When the constituent materials are different, the one-piece molding process can include methods such as insert injection molding, two-color injection molding, and 3D printing.

[0104] The cylindrical body 470, which is manufactured by a one-piece molding process, is tightly connected to the electrical connection part 450. Compared with the conventional assembly method, there is no shaking between the cylindrical body 470 and the electrical connection part 450. During the process of pressing the electrical connection part against the two conductive terminals, the movement of the electrical connection part 450 in the plane parallel to the cover body can be reduced, thereby improving the reliability of the contact between the electrical connection part and the conductive terminals.

[0105] Please refer to Figures 9 to 11 as well as Figure 13 According to some embodiments of this application, the first conductive terminal 420 has a first conductive surface 421, and the second conductive terminal 430 has a second conductive surface 431; the electrical connection portion 450 includes a first planar segment 4511 and a second planar segment 4521, both the first planar segment 4511 and the second planar segment 4521 being parallel to the cover 440, and the first planar segment 4511 having a plurality of first contact protrusions 456 protruding in a direction away from the cover 440, and the second planar segment 4521 having a plurality of second contact protrusions 457 protruding in a direction away from the cover 440; in the closed state, the first planar segment 4511 faces the first conductive surface 421, and the plurality of first contact protrusions 456 are in contact with the first conductive surface 421, and the second planar segment 4521 faces the second conductive surface 431, and the plurality of second contact protrusions 457 are in contact with the second conductive surface 431.

[0106] like Figure 9 As shown, the first conductive terminal 420 has a first conductive surface 421, which can be a planar structure. The second conductive terminal 430 has a second conductive surface 431, which can also be a planar structure. The first conductive surface 421 and the second conductive surface 431 can be located in the same plane, and their dimensions can also be the same.

[0107] In the closed state, the first conductive surface 421 and the second conductive surface 431 can be arranged facing the cover 440 to facilitate contact and connection with the electrical connection part 450.

[0108] The electrical connection portion 450 may include a first planar segment 4511 and a second planar segment 4521, and the first planar segment 4511 and the second planar segment 4521 may also be located in the same plane parallel to the cover.

[0109] In the closed state, the first planar segment 4511 can be arranged opposite to the first conductive surface 421, and the second planar segment 4521 can be arranged opposite to the second planar segment 4521.

[0110] In addition, multiple first contact protrusions 456 can be provided on the first planar segment 4511. The first contact protrusions 456 can contact the first conductive surface 421. The number of first contact protrusions 456 can be 2, 3, 4, 5, etc. The first contact protrusions 456 can be dot-shaped protrusions, and their shapes can be partially spherical, conical, etc., which can be set according to the actual situation.

[0111] Multiple second contact protrusions 457 may also be provided on the second planar segment 4521. The second contact protrusions 457 can contact the second conductive surface 431. The number of second contact protrusions 457 can be 2, 3, 4, 5, etc., and the second contact protrusions 457 can be dot-shaped protrusions, and their shapes can be partially spherical, conical, etc., depending on the actual situation. It can be understood that the electrical connection part 450 can be an elastic component, such as a spring sheet. The size of the first contact protrusion 456 protruding from the first planar segment 4511 can be small, so that in the closed state, the first contact protrusion 456 can be in close contact with the first conductive surface 421. At the same time, the first planar segment 4511 and the first conductive surface 421 can achieve surface-to-surface contact, increasing the contact area and further improving the reliability of the electrical connection.

[0112] Similarly, the size of the second contact protrusion 457 protruding from the second planar segment 4521 can be small, so that in the closed state, the second contact protrusion 457 can be in close contact with the second conductive surface 431. At the same time, the second planar segment 4521 and the second conductive surface 431 can achieve surface-to-surface contact, increasing the contact area and further improving the reliability of the electrical connection.

[0113] In this embodiment, the contact reliability between the electrical connection part and the first conductive surface can be improved by using multiple first contact protrusions, and the contact reliability between the electrical connection part and the second conductive surface can be improved by using multiple second contact protrusions, so that the first conductive terminal 420 and the second conductive terminal 430 can achieve effective and stable electrical connection through the electrical connection part.

[0114] In some embodiments, the first conductive surface 421 and the second conductive surface 431 may be coated with a highly wear-resistant coating (e.g., gold plating, silver plating, tin plating, etc.) to improve the wear resistance of the conductive terminals and avoid the problem of decreased contact reliability caused by surface wear after repeated use.

[0115] According to some embodiments of this application, such as Figure 11 As shown, in the closed state, the outer edge of the first conductive surface 421 protrudes outward from the outer edge of the first planar segment 4511, and the outer edge of the second conductive surface 431 protrudes outward from the outer edge of the second planar segment 4521.

[0116] In this embodiment, the outer edge of the first conductive surface 421 protrudes outward from the outer edge of the first planar segment 4511, which can be understood as the area of ​​the first conductive surface 421 being larger than the area of ​​the first planar segment 4511. In the closed state, the orthographic projection of the first planar segment on the first conductive surface is located inside the first conductive surface.

[0117] The outer edge of the second conductive surface 431 protrudes outward from the outer edge of the second planar segment 4521. This can be understood as the area of ​​the second conductive surface 431 being larger than the area of ​​the second planar segment 4521. Furthermore, in the closed state, the orthographic projection of the second planar segment onto the first conductive surface is located inside the second conductive surface.

[0118] By setting the first conductive surface to protrude from the first planar segment and the second conductive surface to protrude from the second planar segment, when the cover is closed, the first conductive terminal and the second conductive terminal can absorb the deviation of the electrical connection part moving in the plane parallel to the cover, making the connection between the electrical connection part and the first conductive terminal, as well as between the electrical connection part and the second conductive terminal, more reliable.

[0119] According to some embodiments of this application, such as Figure 13 As shown, the electrical connection portion 450 further includes a base 453 arranged parallel to the cover 440, a first extension 4513 connected between the base 453 and the first planar segment 4511, a first bent segment 4512 connected to one end of the first planar segment 4511 away from the first extension 4513, a second extension 4523 connected between the base 453 and the second planar segment 4521, and a second bent segment 4522 connected to one end of the second planar segment 4521 away from the second extension 4523; the base 453 is used to connect with the cover, the first bent segment 4512 and the second bent segment 4522 both extend toward the cover 440, and the base 453 is located between the first planar segment 4511 and the cover 440.

[0120] The base 453 can be a planar structure parallel to the cover. The base 453 can be located between the first planar segment 4511 and the inner surface of the cover. The base 453 can serve as the main connection part between the electrical connection part and the cover. For example, the base 453 can be connected to the cylindrical body 470, thereby enabling the base 453 to move relative to the cover 440 in the first direction X through the cylindrical body 470.

[0121] The base 453 and the first end of the first planar segment 4511 can be connected by the first extension segment 4513. The first extension segment 4513 can be inclined relative to the base. The first bending segment 4512 can be connected to the second end of the first planar segment 4511. The first bending segment 4512 can extend towards the inner surface of the cover, and the first bending segment 4512 can also be inclined relative to the base, so that the first bending segment 4512, the first planar segment 4511 and the first extension segment 4513 can form a roughly trapezoidal shape.

[0122] It is understandable that, through the above shape, the first planar segment 4511 can have a certain deformation capability. During the process of contacting the first conductive terminal, it can be deformed appropriately to make the connection reliability of the contact surface higher.

[0123] In addition, the base 453 and the first end of the second planar segment 4521 can be connected by the second extension segment 4523. The second extension segment 4523 can be inclined relative to the base. The second bending segment 4522 can be connected to the second end of the second planar segment 4521. The second bending segment 4522 can extend towards the inner surface of the cover, and the second bending segment 4522 can also be inclined relative to the base, so that the second bending segment 4522, the second planar segment 4521 and the second extension segment 4523 can form a roughly trapezoidal shape.

[0124] It is understood that, through the aforementioned shape, the second planar segment 4521 can possess a certain degree of deformability. During contact with the second conductive terminal, it can undergo moderate deformation, thereby enhancing the connection reliability of the contact surface. Furthermore, apart from the substrate, the first extension segment, the second extension segment, the first bending segment, and the second bending segment do not need to be directly fixedly connected to the cylindrical body.

[0125] In this embodiment, the electrical connection part 450 is provided with a base, a first extension section, a second extension section, a first bending section and a second bending section. The first planar section and the second planar section can have a certain deformation capability. During the process of closing the cover, the first planar section and the second planar section can undergo a certain deformation under the pressure of the elastic element and the two conductive terminals, which further improves the reliability of their connection with the corresponding conductive terminals.

[0126] In some embodiments, please refer to Figure 13 The cylindrical body 470 may have a groove 473 at one end away from the cover, and the portion of the electrical connection 450 away from the cover may protrude from the groove 473 to achieve full contact with the conductive terminal. In addition, a portion of the electrical connection 450 may be embedded in the groove 473, and when it is squeezed by the conductive terminal, it may undergo appropriate deformation within the groove.

[0127] In some embodiments, in addition to the intermediate section 4531 located between the first extension section 4513 and the second extension section 4523, the base 453 may also have two ears 4532 protruding from both ends of the intermediate section 4531. The ears 4532 may be connected to the cylindrical body 470. Specifically, the inner wall of the end of the cylindrical body away from the cover may be provided with a protrusion 474 that can be inserted into the gap between the first bending section (or the second bending section) and the ears 4532. The protrusion 474 may extend along the inner wall of the cylindrical body into a ring structure with the ends connected. In a plane perpendicular to the first direction, the outer contour of the protrusion 474 may be circular or square, which may be set according to the shape of the inner wall of the cylindrical body.

[0128] In addition, the side of the base 453 facing the cover can be connected to the first positioning post 472, for example, by abutment connection or fixed connection.

[0129] According to some embodiments of this application, such as Figure 11 as well as Figure 13 As shown, the first conductive terminal 420 includes a first conductive segment 422 extending in a second direction and a third planar segment 423 disposed perpendicular to the second direction. One end of the third planar segment 423 is connected to the first conductive segment 422, and the other end of the third planar segment 423 extends toward the direction close to the second conductive terminal 430. The third planar segment 423 is used to contact and connect with the electrical connection portion 450. The second conductive terminal 430 includes a second conductive segment 432 extending in the second direction and a fourth planar segment 433 disposed perpendicular to the second direction. One end of the fourth planar segment 433 is connected to the second conductive segment 432, and the other end of the fourth planar segment 433 extends toward the direction close to the first conductive terminal 430. The fourth planar segment 433 is used to contact and connect with the electrical connection portion 450. The second direction is perpendicular to the cover 440 in the closed state.

[0130] In this embodiment, when the cover 440 is in a closed state, the second direction coincides with the first direction X, that is... Figure 11 The direction of X is also the second direction.

[0131] The first conductive terminal 420 includes a first conductive segment 422 and a third planar segment 423, which can be arranged perpendicularly. The first conductive segment 422 is parallel to the second direction, and the third planar segment 423 can be parallel to the cover in the closed state.

[0132] Figure 11 In the middle, the upper end of the third planar segment 423 can be connected to the first conductive segment 422, and the lower end of the third planar segment 423 can move towards the second conductive terminal 430 (towards) Figure 11 (Extends below)

[0133] The third planar segment 423 is used to contact and connect with the electrical connection part 450. Specifically, the first conductive surface 421 can be the surface of the cover in the closed state facing the third planar segment 423, and the third planar segment 423 contacts the electrical connection part 450 through the first conductive surface 421.

[0134] The second conductive terminal 430 includes a second conductive segment 432 and a fourth planar segment 433, which can be arranged perpendicularly. The second conductive segment 432 is parallel to the second direction, and the fourth planar segment 433 can be parallel to the cover in the closed state.

[0135] Figure 11 In the middle, the lower end of the fourth planar segment 433 can be connected to the second conductive segment 432, and the upper end of the fourth planar segment 433 can be directed towards the first conductive terminal (towards...). Figure 11 (Extends above)

[0136] The fourth planar segment 433 is used to contact and connect with the electrical connection part 450. Specifically, the second conductive surface 431 can be the surface of the cover in the closed state facing the fourth planar segment 433, and the fourth planar segment 433 contacts the electrical connection part 450 through the second conductive surface 431.

[0137] It is understood that the first conductive segment 422 and the second conductive segment 432 can be connected to a control circuit or an electrical circuit.

[0138] In some embodiments, the first conductive terminal and the second conductive terminal may also be elastically deformable sheets to improve the reliability of the contact connection.

[0139] In this embodiment, by extending the third planar segment away from the first conductive segment towards the direction closer to the second conductive terminal, and by extending the fourth planar segment away from the second conductive segment towards the direction closer to the first conductive terminal, the volume of the conductive terminal can be reduced. Simultaneously, since the first and second planar segments of the electrical connection portion are large-area structures, with the first conductive surface protruding from the first planar segment and the second conductive surface protruding from the second planar segment, the connection reliability between the conductive terminal and the electrical connection portion can be maintained even while reducing the volume of the conductive terminal.

[0140] According to some embodiments of this application, such as Figure 9 as well as Figure 11 The connector 400 further includes an insulating isolator 480, which includes a first isolating segment 481 disposed between the first conductive terminal 420 and the second conductive terminal 430. The first isolating segment 481 protrudes from the first conductive terminal 420 and the second conductive terminal 430 in a third direction. The third direction is perpendicular to the cover 440 in the closed state and points from the first isolating segment 481 to the cover 440.

[0141] The insulating isolator 480 may be made of insulating material and may include a first insulating segment 481, which may be located between the first conductive terminal 420 and the second conductive terminal. Figure 11 The third direction can be parallel to the second direction (the first direction X in the diagram), but the third direction only refers to... Figure 11 The direction from left to right is the direction from the first isolation section 481 inside the cavity to the cover in the closed state.

[0142] The first isolation segment 481 can also protrude from the first conductive terminal 420 and the second conductive terminal 430 in a third direction, that is, the first isolation segment 481 protrudes from the first conductive surface 421 and also from the second conductive surface 431.

[0143] The first isolation section can effectively isolate the first conductive terminal and the second conductive terminal, preventing direct contact between them due to vibration or bumps, thus further improving the reliability of the cover opening interlock function.

[0144] According to some embodiments of this application, such as Figure 9 As shown, the insulating isolator 480 also includes two second isolating segments 482 disposed opposite to each other. A first isolating segment 481 is disposed between the two second isolating segments 482, and both ends of the first isolating segment 481 are respectively connected to the two second isolating segments 482. The first isolating segment 481 divides the space between the two second isolating segments 482 into a first space 483 and a second space 484. A first conductive terminal 420 is disposed in the first space 483, and a second conductive terminal 430 is disposed in the second space 484. The second isolating segment 482 protrudes from the first conductive terminal 420 and the second conductive terminal 430 in a third direction.

[0145] Figure 9 In this configuration, two second isolation segments 482 can be located at opposite ends of the first isolation segment 481 along its extension direction, and the two can be arranged opposite each other. The first isolation segment 481 can be perpendicular to the second isolation segment 482, and the two ends of the first isolation segment 481 can be connected to the middle position of the two second isolation segments, so that the first isolation segment and the second isolation segment can roughly form an H shape.

[0146] It is understandable that both the second and first isolation sections can be made of insulating materials, and the two can be connected by common methods such as bonding, snap-fitting, riveting, etc., or they can be molded into a single piece.

[0147] The first isolation segment 481 can divide the space between the two second isolation segments 482 into a first space 483 and a second space 484. The first conductive terminal 420 can be accommodated in the first space 483, and the second conductive terminal 430 can be accommodated in the second space 484.

[0148] Furthermore, the second isolation segment 482 can protrude from the first conductive terminal 420 and the second conductive terminal 430 along a third direction. The second isolation segment 482 can also protrude from the first conductive terminal 420 and the second conductive terminal 430 towards one end near the cover along a second direction; that is, the second isolation segment 482 protrudes from both the first conductive surface 421 and the second conductive surface 431. It is understood that the dimensions of the first isolation segment 481 and the second isolation segment 482 protruding from the first and second conductive surfaces can be the same to facilitate manufacturing.

[0149] The first and second isolation sections not only isolate the first and second conductive terminals, but also prevent other components in the cavity from directly contacting the first and second conductive terminals, thereby improving the reliability of the circuit containing the first and second conductive terminals.

[0150] According to some embodiments of this application, such as Figure 9 As shown, the insulating insulating member 480 has a first end face 485 at one end along a third direction, a first chamfer 486 is provided between the first end face 485 and the inner wall of the first space 483, and a second chamfer 487 is provided between the first end face 485 and the inner wall of the second space 484.

[0151] It can be understood that the first end face 485 is the end face of the insulating isolator 480 facing the cover in the closed state, that is, the end face of the insulating isolator protruding from the first conductive surface and the second conductive surface. It can be understood that the first end face 485 includes the end faces of the first isolation section 481 and the second isolation section 482.

[0152] A first chamfer 486 is provided between the first end face 485 and the inner wall of the first space 483. That is, the first chamfer 486 is provided at the connection between the end faces of the two second isolation sections and the inner wall of the first space, as well as at the connection between the end face of the first isolation section and the inner wall of the first space.

[0153] A second chamfer 487 may also be provided between the first end face and the inner wall of the second space 484. That is, the second chamfer 487 is provided at the connection between the end faces of the two second isolation sections and the inner wall of the second space, as well as at the connection between the end face of the first isolation section and the inner wall of the second space.

[0154] The dimensions of the first chamfer 486 and the second chamfer 487 can be the same, and their shapes can also be the same, for example, both can be rounded corners, or both can be chamfered planes formed by beveling.

[0155] Of course, in other embodiments, the shape and size of the first chamfer and the second chamfer can also be different, and can be set according to the actual situation.

[0156] In this embodiment, the first chamfer can make the opening of the first space for exposing the first conductive surface gradually increase from the inside to the outside, and the second chamfer can make the opening of the second space for exposing the second conductive surface gradually increase from the inside to the outside. This can provide guidance for the contact between the conductive terminal and the electrical connection part, avoid the situation where the electrical connection part cannot make close contact with the conductive terminal due to interference between the electrical connection part and the insulating isolation part, and improve reliability.

[0157] In some embodiments, reference Figure 11 In the closed state, some insulating isolation components 480, the third plane segment 423 and the fourth plane segment 433 can extend into the sleeve 442. That is, the contact position between the conductive terminal and the electrical connection part can be located inside the sleeve, so that the sleeve can play a protective role for the electrical connection position and further improve the reliability of the connection.

[0158] In some embodiments, the cover can be made of plastic and can also be integrally formed with the sleeve 442, which can reduce the weight and structural complexity of the connector.

[0159] Some embodiments of this application also provide a battery device 100, including: a housing 20, a battery cell housed in the housing 20, and a connector 400 as described in the above embodiments; a connector base 120 is provided on the housing 20, and the connector 400 is inserted into the connector base 120.

[0160] like Figures 3 to 4 As shown, in one specific embodiment, the battery device 100 may have a housing 20, on which a connector base 120 may be provided. One end of the connector 400 can be connected to the vehicle body via a cable or plug-in interface, and the other end of the connector 400 can be plugged into the connector base 120, thereby realizing an electrical connection between the vehicle body and the battery device 100. It is understood that the number of plug-in terminals between the connector base 120 and the connector 400 can be one or more, for example... Figure 4 The diagram shows two first plug terminals 121 on the connector base 120. The corresponding connector 400 can have two second plug terminals that correspond one-to-one with the first plug terminals 121. The first and second plug terminals can be connected by plugging the connector and the connector base together. Of course, there can be one, three, four, or more first plug terminals, etc. Correspondingly, the number of second plug terminals can be the same as the number of first plug terminals.

[0161] It is understood that the battery device 100 provided in this application has all the beneficial effects of the aforementioned connector 400 due to the application of any of the above-mentioned connectors 400, which will not be elaborated here.

[0162] This application provides an electrical device, which includes the connector 400 in the above embodiments or the battery device 100 in the above embodiments.

[0163] 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.

[0164] The electrical device includes a battery device and electrical components. The battery device can be used to provide electrical energy, and the electrical components can be parts of the electrical device that require power from the battery device. The electrical device may include the battery device 100 with connector 400 as described in the above embodiments, or it may include connector 400. That is, connector 400 may be part of the battery device 100, or it may be part of something independent of the battery device and electrical components.

[0165] It is understood that the electrical device provided in this application, by using any of the aforementioned battery devices 100 or connectors, has all the beneficial effects of the aforementioned battery devices or connectors, which will not be elaborated here.

[0166] In one embodiment, please refer to Figures 1 to 13 This application provides a connector 400, including: a connector body 410 and a cover 440. The connector body 410 is used to connect a battery device 100 and an electrical component to form an electrical circuit between the battery device 100 and the electrical component. The connector body 410 is provided with a receiving cavity 411, and a first conductive terminal 420 and a second conductive terminal 430 separated from each other are provided in the receiving cavity 411. The cover 440 is rotatably connected to the connector body 410, and an electrical connection portion 450 is provided on the inner side of the cover 440 facing the receiving cavity 411. The first conductive terminal 420, the second conductive terminal 430 and the electrical connection portion 450 are used to form at least a portion of a control circuit 600, and the control circuit 600 is used to control the on / off state of the electrical circuit.

[0167] The cover 440 has a closed state and an open state. In the closed state, the cover 440 closes the opening of the receiving cavity 411, and the first conductive terminal 420 and the second conductive terminal 430 are electrically connected by contacting the electrical connection part 450, thereby conducting the control circuit and then the electrical circuit. In the open state, the cover 440 exposes the receiving cavity 411, and the first conductive terminal 420 and the second conductive terminal 430 are separated from the electrical connection part 450, thereby disconnecting the control circuit and then the electrical circuit.

[0168] The control circuit can be a low-voltage circuit, and the electrical circuit can be a high-voltage circuit.

[0169] In this embodiment, the electrical connection portion 450 can be movably connected to the inner side of the cover via the cylindrical body 470 and the elastic member 460. The elastic member 460 can absorb the deviation between the electrical connection portion and the two conductive terminals along the first direction and provide positive pressure to make the contact between the electrical connection portion 450 and the first conductive terminal 420 and the second conductive terminal 430 more reliable, ensuring the effectiveness of interlocking and electrical connection.

[0170] Furthermore, the first conductive terminal 420 has a first conductive surface 421, and the second conductive terminal 430 has a second conductive surface 431; the electrical connection portion 450 includes a first planar segment 4511 and a second planar segment 4521, both the first planar segment 4511 and the second planar segment 4521 being parallel to the cover 440, and the first planar segment 4511 having a plurality of first contact protrusions 456 protruding in a direction away from the cover 440, and the second planar segment 4521 having a plurality of second contact protrusions 457 protruding in a direction away from the cover 440. The first contact protrusions 456 can make contact with the first conductive surface, and the second contact protrusions 457 can make contact with the second conductive surface.

[0171] By setting the first conductive surface 421 and the second conductive surface 431 as a large planar structure, when the cover is rotated, the large planar structure can absorb various tolerances in the direction parallel to the plane, thereby improving the stability of the circuit.

[0172] The connector provided in this embodiment can be used in electric vehicles as a high-voltage connector for battery devices. By integrating part of the control circuit onto the cover, the conductive terminals can contact the electrical connection part when the cover is closed, thereby realizing the energization and operation function of the control circuit and the interlocking function when the cover is opened, thus improving the safety of operation.

[0173] 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: A connector body is used to connect a battery device and an electrical component to form an electrical circuit between the battery device and the electrical component. The connector body is provided with a receiving cavity, and a first conductive terminal and a second conductive terminal are disposed in the receiving cavity and are separated from each other. A cover body, which is rotatably connected to the connector body, and an electrical connection portion is provided on the inner side of the cover body facing the receiving cavity; The cover has a closed state and an open state. In the closed state, the cover closes the opening of the receiving cavity, and the first conductive terminal and the second conductive terminal are electrically connected by contacting the electrical connection part, thereby conducting the electrical circuit. In the open state, the cover exposes the receiving cavity, and the first conductive terminal and the second conductive terminal are separated from the electrical connection part, thereby disconnecting the electrical circuit.

2. The connector according to claim 1, characterized in that, Also includes: A cylindrical body is connected to the inside of the cover body. The cylindrical body extends along a first direction perpendicular to the cover body and is movable relative to the cover body along the first direction. The electrical connection is connected to the end of the cylindrical body away from the cover body. An elastic member is housed within the cylindrical body, the elastic member being connected between the electrical connection portion and the inner surface of the cover. The elastic member is used to apply an elastic force to the electrical connection portion in the closed state, so that the electrical connection portion presses against the first conductive terminal and the second conductive terminal.

3. The connector according to claim 2, characterized in that, The cylindrical body and the electrical connection part are integrally formed by a molding process.

4. The connector according to any one of claims 1-3, characterized in that, The first conductive terminal has a first conductive surface, and the second conductive terminal has a second conductive surface; The electrical connection portion includes a first planar segment and a second planar segment, both of which are parallel to the cover. The first planar segment has a plurality of first contact protrusions protruding in a direction away from the cover, and the second planar segment has a plurality of second contact protrusions protruding in a direction away from the cover. In the closed state, the first planar segment faces the first conductive surface, and the plurality of first contact protrusions are in contact with the first conductive surface; and the second planar segment faces the second conductive surface, and the plurality of second contact protrusions are in contact with the second conductive surface.

5. The connector according to claim 4, characterized in that, In the closed state, the outer edge of the first conductive surface protrudes outward beyond the outer edge of the first planar segment, and the outer edge of the second conductive surface protrudes outward beyond the outer edge of the second planar segment.

6. The connector according to claim 5, characterized in that, The electrical connection portion further includes a base disposed parallel to the cover, a first extension segment connected between the base and the first planar segment, a first bent segment connected to one end of the first planar segment away from the first extension segment, a second extension segment connected between the base and the second planar segment, and a second bent segment connected to one end of the second planar segment away from the second extension segment. Both the first and second bending segments extend toward the cover, and the base is located between the first planar segment and the cover.

7. The connector according to any one of claims 1-3, characterized in that, The first conductive terminal includes a first conductive segment extending along a second direction and a third planar segment disposed perpendicular to the second direction. One end of the third planar segment is connected to the first conductive segment, and the other end of the third planar segment extends toward a direction close to the second conductive terminal. The third planar segment is used to contact and connect with the electrical connection portion. The second conductive terminal includes a second conductive segment extending along the second direction and a fourth planar segment disposed perpendicular to the second direction. One end of the fourth planar segment is connected to the second conductive segment, and the other end of the fourth planar segment extends toward a direction close to the first conductive terminal. The fourth planar segment is used to contact and connect with the electrical connection portion. The second direction is a direction perpendicular to the cover in the closed state.

8. The connector according to any one of claims 1-3, characterized in that, Also includes: An insulating isolator, the insulating isolator including a first isolation segment disposed between the first conductive terminal and the second conductive terminal, the first isolation segment protruding from the first conductive terminal and the second conductive terminal in a third direction; Wherein, the third direction is the direction perpendicular to the cover in the closed state and pointing from the first isolation segment to the cover.

9. The connector according to claim 8, characterized in that, The insulating isolator further includes two second isolation sections disposed opposite to each other. The first isolation section is disposed between the two second isolation sections, and both ends of the first isolation section are respectively connected to the two second isolation sections. The first isolation section divides the space between the two second isolation sections into a first space and a second space. The first conductive terminal is disposed in the first space, and the second conductive terminal is disposed in the second space. Furthermore, the second isolation segment protrudes from the first conductive terminal and the second conductive terminal along the third direction.

10. The connector according to claim 9, characterized in that, The insulating insulating member has a first end face at one end along the third direction, a first chamfer is provided between the first end face and the inner wall of the first space, and a second chamfer is provided between the first end face and the inner wall of the second space.

11. The connector according to any one of claims 1-3, characterized in that, The first conductive terminal, the second conductive terminal, and the electrical connection portion are used to form at least a portion of the control circuit, which is used to control the on / off state of the electrical circuit.

12. A battery device, characterized in that, include: The housing, the battery cell housed in the housing, and the connector as described in any one of claims 1-11; the housing is provided with a connector base, and the connector is inserted into the connector base.

13. An electrical appliance, characterized in that, Includes the connector as described in any one of claims 1-11 or the battery device as described in claim 12.

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