Connector, battery device, energy storage device, energy storage system, power utilization device and charging network

Abstract

The utility model provides a connector, a battery device, an energy storage device, an energy storage system, a power utilization device and a charging network. The connector comprises a connecting female end and a connecting male end; the connecting female end comprises a female end terminal and a female end support for supporting the female end terminal, and a jack is formed in the female end terminal; the male-end terminal is connected with the male end and is used for being inserted into the jack in a matched manner so as to be elastically connected with the female-end terminal; the male-end support is used for supporting the male-end terminal; and the female end terminal is movably installed on the female end support along the radial direction of the jack, and / or the male end terminal is movably installed on the male end support along the radial direction of the jack. The female end terminal is movably installed on the female end support in the radial direction of the jack, and / or the male end terminal is movably installed on the male end support in the radial direction of the jack, so that the connector can float in any radial direction, and when the male end terminal and the female end terminal are connected in an inserted mode, automatic centering in the radial direction can be achieved. The assembling precision requirement of the connecting male end and the connecting female end is reduced, and installation and use are convenient.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and more particularly relates to a connector, a battery device, an energy storage device, an energy storage system, a power consumption device and a charging network. BACKGROUND

[0002] Connectors are often used in electrical connections. Connectors are mostly inserted with male terminals and female terminals to achieve electrical connection. For connectors that need to conduct large currents, the male terminals and the female terminals need to have good contact, which requires high use and assembly precision of the male terminals and the female terminals, and is inconvenient to use. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a connector, a battery device, an energy storage device, an energy storage system, a power consumption device and a charging network to improve the problem of high use and assembly precision requirement of the male terminals and the female terminals of the connector in the prior art.

[0004] In a first aspect, the application provides a connector, comprising:

[0005] The female terminal is connected to a female terminal and a female terminal support that supports the female terminal, and the female terminal is provided with a socket;

[0006] The male terminal is connected to a male terminal that is adapted to be inserted into the socket to be elastically connected to the female terminal and a male terminal support that supports the male terminal;

[0007] The female terminal is movably mounted on the female terminal support along the radial direction of the socket, and / or the male terminal is movably mounted on the male terminal support along the radial direction of the socket.

[0008] In the technical solution of the application, the female terminal is movably mounted on the female terminal support along the radial direction of the socket, and / or the male terminal is movably mounted on the male terminal support along the radial direction of the socket, so that the connector can realize arbitrary radial floating. When the male terminal and the female terminal are inserted and connected, the radial automatic centering can be realized, so as to reduce the assembly precision requirement of the connected male terminal and the connected female terminal and facilitate installation and use.

[0009] In some embodiments, the female terminal includes a support structure that movably supports the female terminal along the radial direction of the socket, and the support structure is mounted on the female terminal support.

[0010] The support structure is provided to well support the female terminal and enable the female terminal to move well along the radial direction, so as to realize the radial floating of the female terminal.

[0011] In some embodiments, the support structure comprises a support sleeve, a convex portion is arranged on the circumferential side of the support sleeve, the female end terminal is arranged in the support sleeve, an opening is arranged in the female end support, the inner diameter of the opening is larger than the outer diameter of the support sleeve, a groove is arranged on the inner wall of the opening to accommodate the convex portion, and the distance from the bottom wall of the groove to the central axis of the opening is larger than the maximum distance from the convex portion to the central axis of the support sleeve.

[0012] The support sleeve is arranged to support and protect the female end terminal, the opening is arranged in the female end support to accommodate the support sleeve, the convex portion is arranged on the support sleeve, and the groove is arranged on the inner wall of the opening to accommodate the convex portion on the support sleeve, so that the support sleeve is arranged in the opening, and the female end terminal is arranged in the opening of the female end support. The inner diameter of the opening is larger than the outer diameter of the support sleeve, the distance from the bottom wall of the groove to the central axis of the opening is larger than the maximum distance from the convex portion to the central axis of the support sleeve, so that the support sleeve and the female end terminal can move radially in the opening.

[0013] In some embodiments, the groove is provided with an elastic member elastically resisting the convex portion.

[0014] The elastic member is arranged to elastically resist the convex portion, which can well support the support sleeve and the female end terminal, reduce the shaking of the female end terminal, facilitate the insertion and connection of the male end terminal, and be convenient to use. Moreover, due to the elasticity of the elastic member, the female end terminal can still float radially.

[0015] In some embodiments, the elastic member comprises a wave spring, at least one side of the convex portion is provided with the wave spring, one side of the wave spring elastically resists one side of the convex portion, and the other side of the wave spring elastically resists the corresponding side wall of the groove.

[0016] The wave spring is arranged to elastically resist the convex portion in the groove, which reduces the shaking of the convex portion in the groove and further reduces the shaking of the female end terminal. The wave spring is used, and the structure is simple and convenient to assemble and use.

[0017] In some embodiments, the groove is arranged in a ring shape around the central axis of the opening.

[0018] The groove is arranged in a ring shape around the central axis of the opening, so that the inner wall of the opening is provided with the groove in the circumferential direction, which facilitates machining and assembly of the support sleeve.

[0019] In some embodiments, the convex portion is arranged in a ring shape around the circumferential side of the support sleeve.

[0020] The convex portion is arranged in a ring shape, which facilitates manufacturing and assembly in the groove.

[0021] In some embodiments, the female end support includes a sleeve, a first limiting member arranged at one end of the sleeve, and a second limiting member arranged in the sleeve, the first limiting member includes a first limiting portion extending into the sleeve, the first limiting portion, the second limiting member, and the sleeve surround to form an opening and a groove, and the groove is formed between the first limiting portion and the second limiting member.

[0022] The female end support structure is convenient for processing and manufacturing, forming the opening and the groove, and installing and fixing the support sleeve.

[0023] In some embodiments, the first limiting member includes a second limiting portion extending outwardly along a radial direction of the sleeve.

[0024] The second limiting portion is arranged to position the sleeve when the sleeve is fixed to the support medium, facilitating installation and use of the female end support.

[0025] In some embodiments, the male end support is provided with a positioning structure for positioning the support sleeve.

[0026] The positioning structure is arranged on the male end support to position the support sleeve, facilitating insertion of the male end terminal into the female end terminal in the support sleeve, and facilitating use.

[0027] In some embodiments, the positioning structure includes a positioning groove arranged on the male end support, the positioning groove is used for the support sleeve to extend into, to position a radial position of the support sleeve.

[0028] The positioning groove is arranged to limit radial movement of the support sleeve when the male end is connected with the female end, so that the male end terminal and the female end terminal are aligned, facilitating insertion of the male end terminal into the female end terminal in the support sleeve.

[0029] In some embodiments, the positioning structure includes a limiting surface arranged on the male end support, the limiting surface is used to stop and limit an axial position of the support sleeve.

[0030] The limiting surface is arranged to stop and limit the axial position of the support sleeve, facilitating insertion of the male end terminal into the female end terminal in the support sleeve.

[0031] In some embodiments, the insertion hole is a through hole.

[0032] The insertion hole uses a through hole, and the excess part of the male end terminal can pass through the insertion hole to adapt to male end terminals of different lengths, realize axial floating, and reduce the axial manufacturing and assembly precision requirements.

[0033] In some embodiments, the female end terminal is a crown spring or a ring spring.

[0034] The female terminal uses a crown spring or a ring spring, has a simple structure, can form a through hole in the jack, so as to realize axial floating and reduce the axial assembly precision requirement; in addition, the use of the crown spring can achieve good contact with the male terminal; the use of the ring spring can reduce the axial length, and accordingly, a male terminal with a shorter length can be used to reduce the use of materials and reduce the material cost.

[0035] In some embodiments, the male terminal seat is polygonal in cross section perpendicular to the axial direction of the male terminal.

[0036] The cross section of the male terminal seat is polygonal, so that the male terminal seat can be rotated by using a tool, thereby facilitating the installation and fixation of the male terminal.

[0037] In some embodiments, the two ends of the male terminal pass through the two ends of the male terminal seat respectively.

[0038] The two ends of the male terminal pass through the opposite ends of the male terminal seat respectively, which can facilitate the connection of the male terminal and the male terminal seat, and facilitate the connection of one end of the male terminal to an external circuit structure and the connection of the other end of the male terminal to the female terminal.

[0039] In some embodiments, one end of the male terminal is provided with external threads.

[0040] The external threads are provided at one end of the male terminal to facilitate the connection of an external circuit, thereby facilitating the installation and use.

[0041] In some embodiments, a connecting portion is protruded on the peripheral side surface of the male terminal, and the connecting portion is connected to the male terminal seat.

[0042] The connecting portion is provided on the peripheral side surface of the male terminal to be connected to the male terminal seat, which can more stably connect the male terminal and the male terminal seat and improve the connection strength and stability.

[0043] In some embodiments, the male terminal is supported in the male terminal seat by an elastic member.

[0044] The male terminal is supported in the male terminal seat by the elastic member, and the elastic member is elastically deformed to realize the radial floating movement of the male terminal.

[0045] In a second aspect, the embodiments of the present application provide a battery device comprising the connector as described above.

[0046] In a third aspect, the embodiments of the present application provide an energy storage device comprising the connector as described above or the battery device as described above, and the battery device is used to store or provide electric energy.

[0047] In a fourth aspect, the embodiments of the present application provide an energy storage system, comprising a power conversion device and the energy storage device as described above.

[0048] In a fifth aspect, the embodiments of the present application provide a power consumption device, comprising the connector as described above, the battery device as described above, the energy storage device as described above or the energy storage system as described above, and the battery device is used to store or provide electric energy.

[0049] In a sixth aspect, the embodiments of the present application provide a charging network, comprising a charging pile and the energy storage device as described above or the energy storage system as described above, and the energy storage device is used to provide electric energy for the charging pile.

[0050] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear, the embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or exemplary technical description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0052] Figure 1 Structure diagram of a vehicle of some embodiments of the present application;

[0053] Figure 2 Structure diagram of a charging network of some embodiments of the present application;

[0054] Figure 3 Structure diagram of an energy storage system of some embodiments of the present application;

[0055] Figure 4 Structure diagram of an energy storage device of some embodiments of the present application;

[0056] Figure 5 Exploded structure diagram of a battery device of some embodiments of the present application;

[0057] Figure 6 Front view structure diagram of a connector of some embodiments of the present application;

[0058] Figure 7 Structure diagram along the section A-A; Figure 6 ​

[0059] Figure 8 For Figure 6 Structure diagram of the connector of the application Figure 1 ;

[0060] Figure 9 For Figure 6 Structure diagram of the connector of the application Figure 2 ;

[0061] Figure 10 Structure diagram of the connector of the application Figure 1 ;

[0062] Figure 11 Structure diagram of the connector of the application Figure 2 ;

[0063] Figure 12 Structure diagram of the connector of the application

[0064] Figure 13 Structure diagram of the connector of the application

[0065] Figure 14 Structure diagram of the connector of the application

[0066] Figure 15 Structure diagram of the connector of the application

[0067] Figure 16 Structure diagram of the connector of the application

[0068] Figure 17 Structure diagram of the connector of the application

[0069] In the drawings, the main marks are as follows:

[0070] 11, vehicle; 111, controller; 112, motor

[0071] 12, charging network; 121, charging pile; 122, connecting device

[0072] 13, energy storage system; 131, power conversion device; 132, power generation device; 14, energy storage device; 141, cabinet

[0073] 200, battery device; 20, box; 21, top cover; 22, bottom plate; 23, frame; 24, reinforcing beam; 241, hanging beam; 242, expansion beam

[0074] 300, battery cell;

[0075] 400, connector;

[0076] 40, female end connecting; 41, female end support; 4101, opening; 4102, groove; 411, ring sleeve; 412, first limiting member; 4121, first limiting part; 4122, second limiting part; 413, second limiting member; 42, female end terminal; 420, insertion hole; 421, crown spring; 422, ring spring; 4221, conductive wire; 4222, ring spring; 43, support structure; 431, support sleeve; 432, protrusion; 433, elastic member; 4331, wave spring; 434, elastic structural member;

[0077] 50, male end connecting; 51, male end support; 511, positioning structure; 5111, positioning groove; 5112, limiting surface; 52, male end terminal; 521, connecting part; 522, external thread; 53, elastic member;

[0078] X, axial direction; Y, radial direction. DETAILED DESCRIPTION

[0079] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not intended to limit the present application.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "include" and "have" and any variations thereof used in the specification and claims of this application and the above description of the drawings are intended to cover not exclusive inclusion.

[0081] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0082] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the other embodiments, alternative embodiments, or claims. It is explicitly contemplated that embodiments described herein can be combined with each other in any suitable manner.

[0083] All embodiments and optional embodiments of the present application can be combined with each other to form new technical solutions, unless otherwise specified.

[0084] All technical features and optional technical features of the present application can be combined with each other to form new technical solutions, unless otherwise specified.

[0085] In the description of embodiments of the present application, the term“and / or” is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character“ / ” herein generally represents that the front and rear associated objects are in an“or” relationship.

[0086] In the description of embodiments of the present application, the term“a plurality of” refers to two or more (including two), and similarly, “a plurality of groups” refers to two or more groups (including two groups), and “a plurality of pieces” refers to two or more pieces (including two pieces). The meaning of“several” is one or more, unless otherwise explicitly specified.

[0087] In the description of embodiments of the present application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0088] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "fixed", and other similar terms are to be broadly understood, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0089] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to another element or indirectly connected to the other element.

[0090] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the technical term "adjacent" means close in position. For example, A1, A2 and B three components, the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, that is, A2 is adjacent to B, and B is also adjacent to A2. For example, when there are multiple C components, multiple C components are C1, C2……C N , and B is adjacent to C2, and C2 is adjacent to B.

[0091] Connectors are often used in battery devices, vehicles, power storage cabinets and other electrical equipment to electrically connect two circuits or devices. The use of the connector is generally to install the female end and the male end on the two circuit supports that need to be electrically connected. When the two circuit supports are assembled, the male end of the male end is inserted into the female end of the female end to realize the electrical connection of the two circuit supports. Since contact resistance is generated at the contact position of the male end and the female end, in the case of large current conduction, it is necessary to ensure that the male end and the female end are firmly connected to reduce the contact resistance, which requires high assembly accuracy of the male end and the female end on the respective circuit supports, and also requires high assembly accuracy between the two circuit supports, so that the male end and the female end can be stably and well inserted and connected. This also leads to the inconvenience of installation and use of the connector.

[0092] Based on the above considerations, in order to improve the problem that the connector male terminal and the female terminal need to have high use and assembly precision requirements in the related art, the embodiments of the present application provide a connector, which is connected by inserting the female terminal into the male terminal; the female terminal is movably mounted on the female support along the radial direction of the insertion hole, so that the female terminal moves along the radial direction of the insertion hole; and / or the male terminal is movably mounted on the male support along the radial direction of the insertion hole, so that the male terminal moves along the radial direction of the insertion hole; and the radial direction of the insertion hole is any direction perpendicular to the axial direction around the axial direction, so that the connector can realize any radial floating, and when the male terminal and the female terminal are inserted and connected, the radial automatic centering can be realized, so as to reduce the assembly precision requirement of the connected male terminal and the connected female terminal, and facilitate installation and use.

[0093] In the embodiments of the present application, the battery monomer can be a secondary battery, which refers to a battery monomer that can be activated by charging after discharging.

[0094] The battery monomer can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead-acid battery, etc., and the present application is not limited thereto.

[0095] The technical solutions described in the embodiments of the present application are applicable to various electrically connected electric devices, such as electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, etc., for example, spacecraft including airplanes, rockets, space shuttles, etc.

[0096] For convenience of description, an electric device is provided in an embodiment of the present application, which is described by taking a vehicle as an example.

[0097] Please refer to Figure 1 , Figure 1 A structural schematic diagram of a vehicle 11 is provided for some embodiments of the present application. The vehicle 11 can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile, etc. The vehicle 11 is internally provided with a battery device 200, which can be arranged at the bottom, the head or the tail of the vehicle 11. The battery device 200 can be used for power supply of the vehicle 11, for example, the battery device 200 can be used as an operating power source of the vehicle 11. The vehicle 11 can further include a controller 111 and a motor 112, and the controller 111 is used to control the battery device 200 to supply power to the motor 112, for example, for the working power demand of the vehicle 11 during starting, navigation and driving.

[0098] In some embodiments, the battery device 200 can not only serve as the operating power source of the vehicle 11, but also serve as the driving power source of the vehicle 11, replacing or partially replacing the fuel or natural gas to provide driving power for the vehicle 11.

[0099] Please refer to Figure 2 The embodiments of the present application provide a charging network 12, which includes a charging pile 121 and an energy storage device 14. The charging pile 121 is electrically connected to the energy storage device 14, and the energy storage device 14 is configured to provide electric energy for the charging pile 121. The charging pile 121 and the battery device 200 in the energy storage device 14 are electrically connected through a cable. The battery device 200 can provide the electric energy stored therein to the charging pile 121. The charging pile 121 has one or more connecting devices 122, which are configured to be connected to an electric device (such as the vehicle 11), so that the electric device can be charged.

[0100] The energy storage device 14 can be located inside the charging pile 121 (for example, a charging and storage integrated machine), or outside the charging pile 121.

[0101] In some embodiments, the charging network 12 can include a charging pile 121 and an energy storage system. The charging pile 121 is electrically connected to the energy storage system, and the energy storage system is configured to provide electric energy for the charging pile 121. The charging pile 121 and the battery device 200 in the energy storage system are electrically connected through a cable. The battery device 200 can provide the electric energy stored therein to the charging pile 121.

[0102] Please refer to Figure 3 The embodiments of the present application provide an energy storage system 13, which can include one or more energy storage devices 14 and a power conversion device 131 (Power Converter System, PCS for short). The power conversion device 131 is connected between a power generation device 132 and the energy storage device 14. The power generation device 132 is configured to generate electric energy. The electric energy generated by the power generation device 132 can be stored in the energy storage device 14 through the power conversion device 131. As an example, the power generation device 132 can be a solar panel, a water power generation device, a fire power generation device, a wind power generation device, etc. The specific type of the power generation device 132 is not limited in the present application.

[0103] Please refer to Figure 4 The embodiments of the present application provide an energy storage device 14, which includes one or more battery clusters (Battery Cluster) to improve the voltage and capacity of the energy storage device 14. The battery cluster can include one or more battery devices 200. The plurality of battery devices 200 are connected in series through a busbar component to improve the voltage of the energy storage device 14. When the energy storage device 14 includes a plurality of battery clusters, the plurality of battery clusters are connected in parallel to improve the capacity of the energy storage device 14.

[0104] The energy storage device 14 can be used in an energy storage power station, a wind power system, a solar power system, a mobile power system, or a temporary power supply system, etc. The energy storage device 14 can store electric energy as needed and output the electric energy at an appropriate time. For example, the energy storage device 14 can store electric energy at a low electricity consumption valley, and provide electric energy for relevant users or electric equipment at a high electricity consumption peak. The energy storage system 13 provided by the embodiments of the present application can be any power system that needs to use the energy storage device 14.

[0105] In some embodiments, the energy storage device 14 is an energy storage cabinet. Of course, the energy storage device 14 can also be an energy storage container.

[0106] In some embodiments, the energy storage device 14 can include a cabinet body 141 and one or more battery clusters, and the battery clusters are accommodated in the cabinet body 141. Of course, the energy storage device 14 can also include one or more battery devices 200, and the battery devices 200 are directly accommodated in the cabinet body 141.

[0107] In some embodiments, the energy storage device 14 can include a thermal management module, a master control module, a general control module, a power distribution module, and a fire-fighting module, etc.

[0108] As an example, the thermal management module can include a liquid cooling unit, and the liquid cooling unit provides cooling liquid for adjusting the temperature of the battery monomer to each battery device 200 through a pipeline.

[0109] As an example, the master control module can be a battery management unit of the battery cluster, and is used for monitoring and managing the battery cluster. The master control module can monitor the current, voltage, power, or temperature, etc. of the battery cluster. For example, the charging and discharging current, voltage, etc. of the battery cluster can be controlled. The master control module includes a slave battery management unit (SBMU), a fusion switch, etc.

[0110] As an example, the general control module can be a battery management unit of the energy storage device 14, and is used for monitoring and managing the energy storage device 14. The general control module can monitor the current, voltage, power, state of charge, or temperature, etc. of the energy storage device 14. For example, the charging and discharging current, voltage, etc. of the energy storage device 14 can be controlled. As an example, the general control module includes an insulation monitoring module (IMM), a master battery management unit (MBMU), an EtherNet (ETH) and fiber conversion module, etc.

[0111] As an example, the fire module includes a control panel, a detector, an alarm device, etc. for detecting, alarming, or extinguishing the energy storage system 13.

[0112] As an example, the power distribution module can be used to distribute power to the modules in the energy storage device 14 that need power.

[0113] Please refer to Figure 5 The embodiments of the present application provide a battery apparatus 200. The battery apparatus 200 can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells 300 connected in series, in parallel, or in a mixed connection through a busbar component.

[0114] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells 300.

[0115] As an example, the battery cell assembly can be a battery module formed by arranging and fixing a plurality of battery cells 300 into a separate module. As an example, the battery module can be formed by bundling a plurality of battery cells 300 with a cable tie.

[0116] In some embodiments, the battery apparatus 200 can be a battery pack including a case 20 and one or more battery cell assemblies housed in the case 20.

[0117] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the case 20 by fixing the battery module in the case 20.

[0118] As an example, the battery cell assembly can also be housed in the case 20 by directly fixing a plurality of battery cells 300 in the case 20.

[0119] In some embodiments, the case 20 can include a top cover 21, a frame 23, and a bottom plate 22. The top cover 21 and the bottom plate 22 are respectively connected to opposite sides of the frame 23, so that an enclosed space is formed inside the case 20 to accommodate the battery cells 300. The frame 23 refers to a partial structure forming the peripheral side wall of the case 20, the top cover 21 refers to a plate-shaped structure forming the top of the case 20, and the bottom plate 22 refers to a plate-shaped structure forming the bottom of the case 20.

[0120] In some embodiments, the case 20 can include a first case and a second case, which are fastened together so that an enclosed space is formed inside the case 20 to accommodate the battery cell 300. The enclosed here means covered or closed, which can be sealed or unsealed. The first case can be a top cover or a bottom plate of the case 20. The first case and the second case can also be hollow structures each having an open side, and the open side of the first case is covered on the open side of the second case.

[0121] In some embodiments, the case 20 includes a reinforcing beam 24 connected with the frame 23. The reinforcing beam 24 refers to a structural member provided on the case 20 to increase the structural strength of the case 20. The reinforcing beam 24 is provided and connected with the frame 23 to increase the structural strength of the case 20.

[0122] In some embodiments, the reinforcing beam 24 includes a mounting beam 241 fixedly connected with the frame 23 to connect an external device using the battery device 200 to support the battery device 200 on the device.

[0123] In some embodiments, the reinforcing beam 24 includes an expansion beam 242 mounted inside the case 20 to increase the structural strength of the case 20, and can also be used to resist the battery cell 300 to limit the expansion deformation of the battery cell 300.

[0124] In some embodiments, the expansion beam 242 can also be connected with the bottom plate 22 of the case 20 to better fix the expansion beam 242 in the case 20.

[0125] In some embodiments, the case 20 can be part of the chassis structure of a vehicle. For example, part of the case 20 can be at least part of the floor of the vehicle, or part of the case 20 can be at least part of the cross beam and the longitudinal beam of the vehicle.

[0126] Please refer to Figures 6 to 17 According to some embodiments of the present application, a connector 400 is provided, which includes a female end 40 and a male end 50. The female end 40 includes a female end terminal 42 provided with a socket 420 and a female end support 41 supporting the female end terminal 42; the male end 50 includes a male end terminal 52 adapted to be inserted into the socket 420 to be elastically connected with the female end terminal 42 and a male end support 51 supporting the male end terminal 52; the female end terminal 42 is movably mounted on the female end support 41 along the radial direction Y of the socket 420, and / or the male end terminal 52 is movably mounted on the male end support 51 along the radial direction Y of the socket 420.

[0127] The female end 40 refers to the female end structure of the connector 400 having a hole structure.

[0128] The connection male end 50 refers to the plug end structure of the connector 400. The plug of the connection male end 50 is inserted into the hole structure of the connection female end 40 to achieve the plug-in connection of the connection male end 50 and the connection female end 40.

[0129] The male end terminal 52 refers to the conductive structure forming the plug of the connection male end 50. The male end terminal 52 can be made of metal materials such as copper, aluminum, etc. Of course, the male end terminal 52 can also be made of conductive plastic materials, etc. The male end terminal 52 can be a columnar or shaft-shaped piece with a circular, polygonal, etc. cross-section. The male end terminal 52 can also be a shaft-shaped structure formed by surrounding multiple sheet-shaped or rod-shaped pieces, so that when inserted into the female end terminal 42, it can elastically abut against the female end terminal 42 to be electrically connected with the female end terminal 42.

[0130] The female end terminal 42 refers to the conductive structure used to abut against the male end terminal 52 of the connection male end 50 to be electrically connected with the male end terminal 52 of the connection male end 50. The female end terminal 42 can be made of metal, conductive plastic, conductive rubber, etc.

[0131] The insertion hole 420 refers to the hole structure formed in the female end terminal 42 for the male end terminal 52 of the connection male end 50 to be inserted, so that the female end terminal 42 and the male end terminal 52 are in abutment and electrically connected. The female end terminal 42 can be a ring or frame structure to form the insertion hole 420 inside it. The female end terminal 42 can also be a plurality of sheet-shaped or block-shaped structures surrounding an axis X to form the insertion hole 420. The female end terminal 42 can also be a block-shaped piece with the insertion hole 420 inside.

[0132] The female end support 41 refers to the seat structure used to support the female end terminal 42. The female end support 41 can be made of insulating materials such as plastic, ceramic, etc. to support the female end terminal 42. Of course, the female end support 41 can also be made of metal materials to be electrically connected with the female end terminal 42, so that when the female end support 41 is connected with an external circuit, the female end terminal 42 can be connected with the external circuit to facilitate the electrical connection between the female end terminal 42 and the external circuit. Of course, the female end terminal 42 can also be electrically connected with the external circuit in other ways, such as using a wire or a conductive sheet to electrically connect the female end terminal 42 with the external circuit.

[0133] The male terminal support 51 refers to a seat structure for supporting the male terminal 52. The male terminal support 51 can be made of an insulating material such as plastic or ceramic to support the male terminal 52. Of course, the male terminal support 51 can also be made of a metal material to be electrically connected with the male terminal 52, so that the male terminal 52 can be connected with an external circuit when the male terminal support 51 is connected with the external circuit, to facilitate the electrical connection between the male terminal 52 and the external circuit. Of course, the male terminal 52 can also be electrically connected with the external circuit in other ways, such as using a wire or a conductive sheet to electrically connect the male terminal 52 with the external circuit, or directly electrically connecting the male terminal 52 with the external circuit.

[0134] Since the male terminal 52 is in a plug-in fit with the socket 420 of the female terminal 42, the axial direction X of the socket 420 is also the axial direction of the female terminal 42, and correspondingly, when the male terminal 52 is in the form of a shaft, the axial direction X of the socket 420 is also the axial direction of the male terminal 52; when the male terminal 52 is in the form of a column, the axial direction X of the socket 420 is also the length direction of the male terminal 52, so that the length direction of the male terminal 52 is also referred to as the axial direction. Since the axial direction X of the socket 420, the axial direction of the female terminal 42 and the axial direction of the male terminal 52 are consistent, in the embodiments of the present application, the axial direction X directly described can be considered as the axial direction X of the socket 420, or the axial direction of the female terminal 42, or the axial direction of the male terminal 52. The radial direction Y refers to a direction perpendicular to the axial direction X, so the radial direction Y can be considered as any direction perpendicular to the axial direction X among the 360-degree directions around the axial direction X.

[0135] The radial direction Y floating refers to that an object can move in any direction perpendicular to the axial direction X.

[0136] The axial direction X floating refers to that an object can move along the axial direction X.

[0137] The female terminal 42 is movably mounted on the female terminal support 41 along the radial direction Y of the socket 420, which means that the female terminal 42 can move relative to the female terminal support 41 in a direction perpendicular to the axial direction X, and correspondingly, the female terminal 42 can move in any direction perpendicular to the axial direction X among the 360-degree directions, that is, the radial direction Y floating of the female terminal 42 is realized.

[0138] The male terminal 52 is movably mounted on the male terminal support 51 along the radial direction Y of the socket 420, which means that the male terminal 52 can move relative to the male terminal support 51 in a direction perpendicular to the axial direction X, and correspondingly, the male terminal 52 can move in any direction perpendicular to the axial direction X among the 360-degree directions, that is, the radial direction Y floating of the male terminal 52 is realized.

[0139] The female terminal 42 is movably mounted on the female support 41 along the radial direction Y of the insertion hole 420, and / or the male terminal 52 is movably mounted on the male support 51 along the radial direction Y of the insertion hole 420. In some embodiments, the female terminal 42 is movably mounted on the female support 41 along the radial direction Y of the insertion hole 420. In some embodiments, the male terminal 52 is movably mounted on the male support 51 along the radial direction Y of the insertion hole 420. In some embodiments, the female terminal 42 is movably mounted on the female support 41 along the radial direction Y of the insertion hole 420, and the male terminal 52 is movably mounted on the male support 51 along the radial direction Y of the insertion hole 420.

[0140] In the technical solution of the embodiments, the female terminal 42 is movably mounted on the female support 41 along the radial direction Y of the insertion hole 420, and / or the male terminal 52 is movably mounted on the male support 51 along the radial direction Y of the insertion hole 420, so that the connector 400 can realize arbitrary radial Y floating. When the male terminal 52 is inserted and connected with the female terminal 42, the radial Y automatic centering can be realized, so that the female terminal 42 and the male terminal 52 are stably connected, thereby facilitating the conduction of a large current, and reducing the assembly precision requirement of the male terminal 50 and the female terminal 40, and facilitating the installation and use.

[0141] In some embodiments, the connector 400 can be applied to the positive electrode end of the battery device 200 to conduct a current. In some embodiments, the connector 400 can be applied to the negative electrode end of the battery device 200.

[0142] In some embodiments, referring to Figures 7 to 11 , and Figure 16 , the female terminal 40 includes a support structure 43 movably supporting the female terminal 42 along the radial direction Y of the insertion hole 420, and the support structure 43 is mounted on the female support 41.

[0143] The support structure 43 refers to a structure for fixing and supporting the female terminal 42, and can make the female terminal 42 float along the radial direction Y. The support structure 43 can be made of insulating materials such as plastic and ceramic to support the female terminal 42. Of course, the support structure 43 can also be made of metal materials to electrically connect with the female terminal 42.

[0144] The support structure 43 is mounted on the female support 41 to support the support structure 43 through the female support 41, and then support the female terminal 42.

[0145] As an example, the support structure 43 can use elastic structural members 434 such as elastic sheets, springs or ring wires to support the female terminal 42, so as to realize the radial Y floating of the female terminal 42.

[0146] As an example, the support structure 43 can be a plate or a block to connect the plate or the block with one side of the female terminal 42, fix the support female terminal 42, and movably connect the support structure 43 with the female terminal 42 along the radial direction Y, so that the female terminal 42 can float along the radial direction Y. As an example, the support structure 43 can be a ring to install the female terminal 42 in the ring to support the female terminal 42, and movably connect the support structure 43 with the female terminal 42 along the radial direction Y, so that the female terminal 42 can float along the radial direction Y.

[0147] The support structure 43 can be arranged to well support the female terminal 42 and well move the female terminal 42 along the radial direction Y to realize the radial floating of the female terminal 42.

[0148] In some embodiments, the female terminal 42 can also be slidingly installed on the female seat 41, so that the female terminal 42 can float along the radial direction Y on the female seat 41.

[0149] In some embodiments, referring to Figures 7 to 11 , the support structure 43 includes a support sleeve 431, the peripheral side surface of the support sleeve 431 is provided with a protrusion 432, the female terminal 42 is installed in the support sleeve 431, the female seat 41 is provided with an opening 4101, the inner diameter of the opening 4101 is greater than the outer diameter of the support sleeve 431, the inner wall of the opening 4101 is provided with a groove 4102 for accommodating the protrusion 432, and the distance from the bottom wall of the groove 4102 to the central axis of the opening 4101 is greater than the maximum distance from the protrusion 432 to the central axis of the support sleeve 431.

[0150] The support sleeve 431 refers to a sleeve structure with a through hole inside. The cross section of the support sleeve 431 can be circular, polygonal, etc. The support sleeve 431 can be made of conductive materials such as metal. Of course, the support sleeve 431 can also be made of insulating materials such as plastic and ceramic.

[0151] The peripheral side surface of the support sleeve 431 refers to the outer surface around the axial direction X of the support sleeve 431.

[0152] The protrusion 432 refers to a protruding structure provided on the peripheral side surface of the support sleeve 431. The protrusion 432 can be integrally formed with the support sleeve 431 for easy processing and manufacturing. Of course, the protrusion 432 can also be separately manufactured and fixedly connected with the support sleeve 431 by welding, bonding, etc.

[0153] The installation of the female terminal 42 in the support sleeve 431 refers to the installation of the female terminal 42 in the through hole of the support sleeve 431, so that the support sleeve 431 surrounds the female terminal 42 to well support the female terminal 42.

[0154] The opening 4101 refers to a hole structure formed in the female end support 41. The opening 4101 is provided in the female end support 41, and the support sleeve 431 can be arranged in the opening 4101, and then the female end terminal 42 can be arranged in the opening 4101.

[0155] The groove 4102 refers to a slot structure provided on the inner wall of the opening 4101 of the female end support 41.

[0156] The inner diameter of the opening 4101 refers to the diameter of the opening 4101. The outer diameter of the support sleeve 431 refers to the diameter of the peripheral side surface of the support sleeve 431.

[0157] The bottom wall of the groove 4102 refers to the wall where the bottom surface along the depth direction of the groove 4102 is located. Since the groove 4102 is provided on the inner wall of the opening 4101, the depth direction of the groove 4102 is consistent with the radial direction Y of the opening 4101.

[0158] The inner diameter of the opening 4101 is greater than the outer diameter of the support sleeve 431, so that a gap is formed between the support sleeve 431 and the inner wall of the opening 4101. The distance from the bottom wall of the groove 4102 to the center axis of the opening 4101 is greater than the maximum distance from the convex portion 432 to the center axis of the support sleeve 431, so that there is a gap between the bottom wall of the groove 4102 and the convex portion 432 along the radial direction Y of the opening 4101. In this way, the convex portion 432 can move along the radial direction Y in the groove 4102, and correspondingly, the support sleeve 431 can move along the radial direction Y in the opening 4101, and the female end terminal 42 is arranged in the support sleeve 431, so as to realize the radial Y floating of the female end terminal 42.

[0159] The support sleeve 431 is arranged to support and protect the female end terminal 42. The opening 4101 is provided in the female end support 41 to accommodate the support sleeve 431. The convex portion 432 is arranged on the support sleeve 431, and the groove 4102 is provided on the inner wall of the opening 4101 to accommodate the convex portion 432 on the support sleeve 431, so as to install the support sleeve 431 in the opening 4101, and then install the female end terminal 42 in the opening 4101 of the female end support 41. The inner diameter of the opening 4101 is greater than the outer diameter of the support sleeve 431, and the distance from the bottom wall of the groove 4102 to the center axis of the opening 4101 is greater than the maximum distance from the convex portion 432 to the center axis of the support sleeve 431, so that the support sleeve 431 and the female end terminal 42 can move along the radial direction Y in the opening 4101.

[0160] In some embodiments, referring to Figures 7 to 11 , the groove 4102 is provided with an elastic member 433 elastically abutting against the convex portion 432.

[0161] The elastic member 433 refers to a structure member with elasticity. The elastic member 433 can be a spring, a spring piece, a rubber pad, a rubber block, or the like. The elastic member 433 can be made of a conductive material such as metal. Of course, the elastic member 433 can also be made of an insulating material such as plastic or rubber.

[0162] The elastic member 433 elastically abuts against the convex portion 432, which can be in the axial direction X or in the radial direction Y.

[0163] The elastic member 433 is arranged in the groove 4102 to elastically abut against the convex portion 432, which can well support the support sleeve 431 and the female terminal 42, reduce the shaking of the female terminal 42, facilitate the plug-in connection of the male terminal 52, and be convenient to use. Moreover, due to the elasticity of the elastic member 433, the female terminal 42 can still float in the radial direction Y.

[0164] In some embodiments, referring to Figures 7 to 11 The elastic member 433 includes a wave spring 4331, and the wave spring 4331 is arranged on at least one side of the convex portion 432. One side of the wave spring 4331 abuts against one side of the convex portion 432, and the other side of the wave spring 4331 abuts against a corresponding side wall of the groove 4102.

[0165] The wave spring 4331 is a thin metal ring with a plurality of peaks and valleys.

[0166] The side wall of the groove 4102 refers to a side wall of the groove 4102 in a direction perpendicular to the depth of the groove 4102.

[0167] At least one side of the convex portion 432 is provided with the wave spring 4331, which can be arranged on one side of the convex portion 432 in the axial direction X or on opposite sides of the convex portion 432 in the axial direction X.

[0168] One side of the wave spring 4331 abuts against one side of the convex portion 432, and the other side of the wave spring 4331 abuts against a corresponding side wall of the groove 4102, which means that the two sides of the wave spring 4331 abut against the convex portion 432 and the side wall of the groove 4102 adjacent to the wave spring 4331, respectively.

[0169] The wave spring 4331 is arranged to elastically abut the convex portion 432 in the groove 4102, which reduces the shaking of the convex portion 432 in the groove 4102 and further reduces the shaking of the female terminal 42. The wave spring 4331 is simple in structure and convenient to assemble and use.

[0170] In some embodiments, the two sides of the convex portion 432 are provided with the wave spring 4331 to more stably support the convex portion 432 and reduce the shaking of the convex portion 432, thereby reducing the shaking of the support sleeve 431.

[0171] In some embodiments, referring to Figures 7 to 11 The groove 4102 is annularly arranged around the central axis of the opening 4101.

[0172] The groove 4102 being annularly arranged around the central axis of the opening 4101 means that the groove 4102 is annular along the circumference of the opening 4101.

[0173] Arranging the groove 4102 annularly around the central axis of the opening 4101 can make the circumference of the inner wall of the opening 4101 be provided with the groove 4102, so as to facilitate the machining and manufacturing, and also facilitate the assembly of the support sleeve 431.

[0174] In some embodiments, the groove 4102 can also be arranged on part of the inner wall of the opening 4101.

[0175] In some embodiments, the groove 4102 can also be arranged in a circular shape, a sector shape, etc. In some embodiments, a plurality of grooves 4102 can be arranged on the inner wall of the opening 4101, and the plurality of grooves 4102 are arranged around the central axis of the opening 4101.

[0176] In some embodiments, referring to Figures 7 to 11 The convex part 432 is annular and arranged around the circumferential side surface of the support sleeve 431.

[0177] The convex part 432 being annular means that the convex part 432 is annular as a whole.

[0178] The convex part 432 being annular and arranged around the circumferential side surface of the support sleeve 431 means that the annular convex part 432 surrounds the support sleeve 431, i.e. the support sleeve 431 is located inside the convex part 432.

[0179] The convex part 432 being annular can facilitate the manufacturing and assembly in the groove 4102.

[0180] In some embodiments, the convex part 432 can also be arranged in a circular shape, a sector shape, etc.

[0181] In some embodiments, referring to Figures 6 to 11 The female end support 41 includes a ring sleeve 411, a first limiting part 412 arranged at one end of the ring sleeve 411, and a second limiting part 413 installed in the ring sleeve 411. The first limiting part 412 includes a first limiting part 4121 extending into the ring sleeve 411. The first limiting part 4121, the second limiting part 413, and the ring sleeve 411 surround the opening 4101 and the groove 4102, and the groove 4102 is formed between the first limiting part 4121 and the second limiting part 413.

[0182] The ring sleeve 411 refers to a structure with a ring shape and a through hole in the inside. The cross section of the ring sleeve 411 can be circular, polygonal, etc. The ring sleeve 411 can be made of conductive materials such as metal. Of course, the ring sleeve 411 can also be made of insulating materials such as plastic, ceramic, etc.

[0183] One end of the ring sleeve 411 refers to one end along the axial direction X of the ring sleeve 411. The axial direction X of the ring sleeve 411 is consistent with the axial direction X of the jack 420.

[0184] The first limiting part 412 refers to a structure arranged at one end of the ring sleeve 411 for limiting. The first limiting part 412 can be made of conductive materials such as metal. Of course, the first limiting part 412 can also be made of insulating materials such as plastic, ceramic, etc.

[0185] The first limiting part 412 and the ring sleeve 411 can be integrally made to facilitate processing and manufacturing. Of course, the first limiting part 412 and the ring sleeve 411 can also be separately made and then fixedly connected by clamping, welding, bonding, etc.

[0186] The second limiting part 413 refers to a structure installed in the inside of the ring sleeve 411 for limiting. The second limiting part 413 can be made of conductive materials such as metal. Of course, the second limiting part 413 can also be made of insulating materials such as plastic, ceramic, etc.

[0187] The second limiting part 413 and the ring sleeve 411 can also be separately made and then fixedly connected by clamping, welding, bonding, etc. Of course, the second limiting part 413 and the ring sleeve 411 can also be integrally made.

[0188] The first limiting part 412 refers to a structure arranged at one end of the ring sleeve 411 for limiting. The first limiting part 412 can be made of conductive materials such as metal. Of course, the first limiting part 412 can also be made of insulating materials such as plastic, ceramic, etc.

[0189] The first limiting part 412, the second limiting part 413, and the ring sleeve 411 surround the hole 4101 and the groove 4102, and the groove 4102 is formed between the first limiting part 412 and the second limiting part 413 along the central axis of the hole 4101. The space between the first limiting part 412 and the second limiting part 413 forms the groove 4102, while the inside of the first limiting part 412, the inside of the second limiting part 413, and the space between the inside of the first limiting part 412 and the inside of the second limiting part 413 form the hole 4101.

[0190] During assembly, one end of the ring sleeve 411 is installed with the first limiting part 412, the support sleeve 431 and the convex part 432 can be placed in the ring sleeve 411, and then the second limiting part 413 is installed, so that the first limiting part 412 and the second limiting part 413 are located on the opposite sides of the convex part 432, so as to movably install the support sleeve 431 in the ring sleeve 411 along the radial direction Y.

[0191] The structure of the female end support 41 is convenient for processing and manufacturing, and is convenient for forming the opening 4101 and the groove 4102, and is convenient for mounting and fixing the support sleeve 431.

[0192] In some embodiments, when the female end 40 includes the elastic member 433, the elastic member 433 can be mounted in the ring sleeve 411 before the second limiting part 413 is assembled, so that the elastic member 433 is located in the groove 4102 and elastically abuts against the protrusion 432 after the second limiting part 413 is mounted.

[0193] In some embodiments, a slot can be arranged at one end of the inner wall of the opening 4101 of the female end support 41, and a baffle is mounted at one end of the female end support 41 to cover the end of the slot, thereby forming the groove 4102.

[0194] In some embodiments, the first limiting part 4121 can be a ring-shaped or frame-shaped structure. Of course, the first limiting part 4121 can also be a plurality of rod-shaped or block-shaped structures arranged around the central axis of the opening 4101.

[0195] In some embodiments, the second limiting part 413 can be a ring-shaped or frame-shaped structure. Of course, the second limiting part 413 can also be a plurality of rod-shaped or block-shaped structures arranged around the central axis of the opening 4101.

[0196] In some embodiments, referring to Figures 6 to 11 , the first limiting part 412 includes a second limiting part 4122 extending outward from the ring sleeve 411 in the radial direction Y of the ring sleeve 411.

[0197] The second limiting part 4122 refers to the part of the first limiting part 412 extending to the outside of the ring sleeve 411.

[0198] The second limiting part 4122 is arranged to play a positioning role when the ring sleeve 411 is fixed to the support medium, thereby facilitating the installation and use of the female end support 41.

[0199] In some embodiments, the second limiting part 4122 can be a ring-shaped or frame-shaped structure. Of course, the second limiting part 4122 can also be a plurality of rod-shaped or block-shaped structures arranged around the central axis of the opening 4101.

[0200] In some embodiments, the female end support 41 can also be arranged in a ring-shaped plate, a frame, a block, etc., to support the female end terminal 42.

[0201] In some embodiments, referring to Figures 7 to 10 , the male end support 51 is provided with a positioning structure 511 for positioning the support sleeve 431.

[0202] The positioning structure 511 refers to a structure for positioning the support sleeve 431. The positioning structure 511 can be a groove-shaped structure or a planar structure.

[0203] The positioning structure 511 is arranged on the male terminal seat 51 to position the support sleeve 431, so as to facilitate the insertion of the male terminal 52 into the female terminal 42 in the support sleeve 431 and facilitate use.

[0204] In some embodiments, referring to Figures 7 to 10 , the positioning structure 511 includes a positioning groove 5111 arranged on the male terminal seat 51, and the positioning groove 5111 is used for the support sleeve 431 to extend into, so as to position the radial Y position of the support sleeve 431.

[0205] The positioning groove 5111 refers to a groove structure arranged on the male terminal seat 51.

[0206] The positioning groove 5111 is used for the support sleeve 431 to extend into, so as to position the radial Y position of the support sleeve 431, which means that when the male terminal 50 is connected with the female terminal 40 for plug-in assembly, one end of the support sleeve 431 can extend into the positioning groove 5111, so that the inner wall of the positioning groove 5111 limits the radial Y position of the support sleeve 431 to position the support sleeve 431 in the radial Y direction.

[0207] In the case that the support sleeve 431 can float in the radial Y direction in the female terminal seat 41, the positioning groove 5111 is arranged on the male terminal seat 51, and in the process of inserting the support sleeve 431 into the positioning groove 5111, the support sleeve 431 can move in the radial Y direction, and the support sleeve 431 is aligned through the positioning groove 5111, so that the female terminal 42 and the male terminal 52 are aligned, and the male terminal 52 is inserted into the female terminal 42 in the support sleeve 431.

[0208] The positioning groove 5111 is arranged, and when the male terminal 50 is connected with the female terminal 40 for plug-in assembly, the positioning groove 5111 can limit the radial Y movement of the support sleeve 431, so that the male terminal 52 and the female terminal 42 are aligned, and the male terminal 52 is inserted into the female terminal 42 in the support sleeve 431.

[0209] In some embodiments, a slot can be arranged on the support sleeve 431, and the positioning structure 511 includes a plug rod arranged on the male terminal seat 51 to cooperate with the plug rod inserted into the slot, so as to adjust the radial Y position of the support sleeve 431 in the process of inserting the plug rod into the slot, thereby aligning the support sleeve 431 and the female terminal 42.

[0210] In some embodiments, referring to Figures 7 to 10 , the positioning structure 511 includes a limiting surface 5112 arranged on the male terminal seat 51, and the limiting surface 5112 is used for stopping and limiting the position of the support sleeve 431 in the axial X direction.

[0211] The limiting surface 5112 refers to a surface provided on the male end support 51. The limiting surface 5112 can be a flat surface, a curved surface, or the like.

[0212] The limiting surface 5112 is used to stop and limit the axial X position of the support sleeve 431. When the male end 50 and the female end 40 are connected and inserted towards each other, the support sleeve 431 can abut against the limiting surface 5112 to limit the axial X position of the support sleeve 431, so that the male end terminal 52 is inserted into the female end terminal 42.

[0213] The limiting surface 5112 is provided to stop and limit the axial X position of the support sleeve 431, so that the male end terminal 52 is inserted into the female end terminal 42 in the support sleeve 431.

[0214] In some embodiments, only the positioning groove 5111 can be provided on the male end support 51 to limit the radial Y position of the support sleeve 431. In some embodiments, only the limiting surface 5112 can be provided on the male end support 51 to stop and limit the axial X position of the support sleeve 431. In some embodiments, both the positioning groove 5111 and the limiting surface 5112 can be provided on the male end support 51 to limit the radial Y and axial X positions of the support sleeve 431.

[0215] In some embodiments, both the positioning groove 5111 and the limiting surface 5112 can be provided on the male end support 51, and the limiting surface 5112 can be the bottom surface of the positioning groove 5111. In some embodiments, the end surface of the male end support 51 can serve as the limiting surface 5112, and a protruding portion can be provided on the support sleeve 431 to cooperate with the limiting surface 5112 to limit the axial X position of the support sleeve 431.

[0216] In some embodiments, as shown in Figures 6 to 16 , the insertion hole 420 is a through hole.

[0217] A through hole refers to a hole structure that penetrates through both ends in the axial X direction.

[0218] The insertion hole 420 uses a through hole, and the excess portion of the male end terminal 52 can pass through the insertion hole 420 to adapt to male end terminals 52 of different lengths, achieve axial X floating, and reduce the manufacturing and assembly precision requirements in the axial X direction.

[0219] In some embodiments, the insertion hole 420 can also be provided as a blind hole.

[0220] In some embodiments, as shown in Figures 7 to 16 , the female end terminal 42 is a crown spring 421 or a ring spring 422.

[0221] Crown spring 421 refers to a spring composed of multiple elastic leaves arranged in a crown shape. Crown spring 421 generally has good elasticity and contact performance. The leaves of crown spring 421 are generally made of highly elastic metal materials, such as beryllium bronze, which can provide a stable and reliable electrical connection in a small space.

[0222] A ring spring 422 refers to an elastic structure that forms a ring or frame. Ring springs 422 are generally made of metal, such as metal wire or metal springs.

[0223] The female terminal 42 uses a crown spring 421 or a ring spring 422, which has a simple structure and can make the socket 420 form a through hole to achieve axial X floating and reduce the axial X assembly accuracy requirements. In addition, the crown spring 421 can make good contact with the male terminal 52. The ring spring 422 can reduce the length of axial X, and correspondingly, a shorter male terminal 52 can be used to reduce the amount of material used and reduce material costs.

[0224] In some embodiments, please refer to Figure 7 , Figures 12 to 15 Along the axial direction X of the ring spring 422, the ring spring 422 is arranged in a polygonal shape.

[0225] The phrase "the spring 422 is polygonal" means that when viewed from the axial direction X, the spring 422 appears polygonal. As an example, the polygon can be a regular polygon, meaning that the lengths of its sides are equal or similar to facilitate manufacturing. Furthermore, when the male terminal 52 is inserted into the socket 420, the forces acting on the peripheral surface of the male terminal 52 by the spring 422 are similar, resulting in balanced force on the male terminal 52. Alternatively, the lengths of the sides of the polygon can also be unequal.

[0226] By setting the ring spring 422 in a polygonal shape, and inserting the male terminal 52 into the socket 420 of the ring spring 422, the side of the polygonal ring spring 422 can elastically abut against the male terminal 52 so as to make good connection with the male terminal 52.

[0227] In some embodiments, along the axial direction X of the ring spring 422, the ring spring 422 is circular, elliptical, or the like.

[0228] In some embodiments, please refer to Figure 7 , Figures 12 to 15 Along the axial direction X of the ring spring 422, the ring spring 422 is hexagonal.

[0229] The hexagonal shape of the ring spring 422 along its axial direction X means that the ring spring 422 appears to be hexagonal when viewed from its axial direction X.

[0230] The ring spring 422 is set to be hexagonal, and when the male terminal 52 is inserted into the insertion hole 420 of the ring spring 422, the ring spring 422 has six side walls to abut against the male terminal 52, to achieve good contact with the male terminal 52, so as to achieve large current conduction, and the force of each side wall abutting against the male terminal 52 can well abut against the connecting male terminal 50, so as to be connected stably, and the male terminal 52 can be well protected, and the force of the male terminal 52 on the side surface is more balanced under the action of the ring spring 422, so as to be connected stably for large current conduction.

[0231] As an example, along the axial direction X of the ring spring 422, the ring spring 422 is set to be pentagonal, heptagonal, octagonal, etc.

[0232] In some embodiments, referring to Figure 7 and Figure 13 At least part of at least one side of the ring spring 422 is bent towards the inside of the insertion hole 420.

[0233] At least part of at least one side of the ring spring 422 is bent towards the inside of the insertion hole 420, which means that the ring spring 422 forms the side wall of the insertion hole 420: part of one of the side walls can be bent towards the inside of the insertion hole 420, the whole of one of the side walls can be bent towards the inside of the insertion hole 420, part of several of the side walls can be bent towards the inside of the insertion hole 420, the whole of several of the side walls can be bent towards the inside of the insertion hole 420, part of each of the side walls can be bent towards the inside of the insertion hole 420, the whole of each of the side walls can be bent towards the inside of the insertion hole 420, or part of some of the side walls can be bent towards the inside of the insertion hole 420, and the whole of some of the side walls can be bent towards the inside of the insertion hole 420.

[0234] Since the side wall of the insertion hole 420 is bent towards the inside of the insertion hole 420, the area of the insertion hole 420 is actually reduced, and when the male terminal 52 is inserted into the insertion hole 420, the force of the inwardly bent side wall abutting against the male terminal 52 can be increased, so as to more stably connect the male terminal 50.

[0235] Bending at least part of at least one side of the ring spring 422 inwardly can reduce the area of the insertion hole 420, so that the side of the ring spring 422 can better abut against the connecting male terminal 50, and the connection stability is improved.

[0236] In some embodiments, at least part of each side of the ring spring 422 is bent towards the inside of the insertion hole 420, that is, at least part of each side wall of the insertion hole 420 is bent towards the inside of the insertion hole 420, and when the male terminal 52 is inserted into the insertion hole 420, each side wall can more stably abut against the male terminal 52, and the force on each side of the male terminal 52 is more balanced, so as to be connected more stably.

[0237] In some embodiments, referring toFigure 7 and Figure 14 At least part of at least one side of the ring spring 422 is bent towards the outside of the insertion hole 420.

[0238] At least part of at least one side of the ring spring 422 is bent towards the outside of the insertion hole 420 refers to that the ring spring 422 forms the side wall of the insertion hole 420: a part of one of the side walls can be bent towards the outside of the insertion hole 420, the whole of one of the side walls can be bent towards the outside of the insertion hole 420, a part of several of the side walls can be bent towards the outside of the insertion hole 420, the whole of several of the side walls can be bent towards the outside of the insertion hole 420, a part of each of the side walls can be bent towards the outside of the insertion hole 420, the whole of each of the side walls can be bent towards the outside of the insertion hole 420, or a part of some of the side walls can be bent towards the outside of the insertion hole 420, the whole of some of the side walls can be bent towards the outside of the insertion hole 420.

[0239] Since the side wall of the insertion hole 420 is bent towards the outside of the insertion hole 420, when the male terminal 52 is inserted into the insertion hole 420, the side wall that can be bent better fits the shape of the male terminal 52 to increase the contact area with the male terminal 52.

[0240] Bending at least part of at least one side of the ring spring 422 outwards can make the side better fit the male terminal 52 to increase the contact area with the male terminal 52 for large current conduction.

[0241] In some embodiments, at least part of each side of the ring spring 422 is bent towards the outside of the insertion hole 420, that is, at least part of each side wall of the insertion hole 420 is bent towards the outside of the insertion hole 420, when the male terminal 52 is inserted into the insertion hole 420, each side wall can be more stably supported by the male terminal 52, the male terminal 52 is more evenly stressed on each side, the contact area between the ring spring 422 and the male terminal 52 is better increased, large current conduction is facilitated, and connection is more stable.

[0242] In some embodiments, referring to Figure 7 , Figures 12 to 14 The ring spring 422 includes at least one loop of conductive wire 4221 wound into a ring shape, and the conductive wire 4221 surrounds the insertion hole 420.

[0243] The conductive wire 4221 refers to a wire-like structure made of conductive material. The conductive material can be metal materials such as copper, steel, and aluminum, or can be conductive plastic materials.

[0244] The ring spring 422 includes at least one loop of conductive wire 4221 wound into a ring shape refers to using the conductive wire 4221 to be wound into a ring shape to form the ring spring 422.

[0245] Since the insertion hole 420 is formed around the ring spring 422, and the conductive wire 4221 is wound into a ring shape to form the ring spring 422, the insertion hole 420 is formed inside the ring structure wound by the conductive wire 4221.

[0246] The conductive wire 4221 is wound into a ring shape to form the ring spring 422, which is simple in structure, easy to manufacture, and low in cost.

[0247] In some embodiments, referring to Figure 7 and Figure 15 , the ring spring 422 can also be formed by spring bending, that is, the ring spring 422 can use a ring-shaped spring 4222, which is convenient to manufacture.

[0248] In some embodiments, referring to Figure 7 , Figures 12 to 14 , the conductive wire 4221 is spirally wound around the axis X of the insertion hole 420 for multiple turns.

[0249] Multiple turns refer to two turns or more.

[0250] The conductive wire 4221 is spirally wound around the axis X of the insertion hole 420 for multiple turns, which forms a multi-turn structure of the conductive wire 4221, and is spirally wound around the axis X of the insertion hole 420.

[0251] Winding the conductive wire 4221 for multiple turns can increase the structural strength of the manufactured ring spring 422, more stably connect the male terminal 50, and increase the contact area with the male terminal 52, better conducting large current.

[0252] In some embodiments, referring to Figures 6 to 11 , the male terminal support 51 is polygonal in cross-section perpendicular to the axis X of the male terminal 52.

[0253] The axis X of the male terminal 52 is the length direction of the male terminal 52, and is also the axis X of the insertion hole 420.

[0254] Polygonal refers to a shape with more than three sides, such as a triangle, a quadrilateral, a hexagon, etc.

[0255] The male terminal support 51 is polygonal in cross-section perpendicular to the axis X of the male terminal 52, that is, the outer contour of the male terminal support 51 is prismatic.

[0256] The cross-section of the male terminal support 51 is set to be polygonal, so as to facilitate the use of tools to rotate the male terminal support 51, and then facilitate the installation and fixation of the male terminal 50, so as to be installed and used.

[0257] In some embodiments, referring to Figures 6 to 11 and Figure 17 , the two ends of the male terminal 52 are respectively arranged through the two ends of the male terminal support 51.

[0258] The two ends of the male terminal 52 respectively passing through the two ends of the male terminal holder 51 means that along the axial direction X, one end of the male terminal 52 passes through one end of the male terminal holder 51, and the other end of the male terminal 52 passes through the other end of the male terminal holder 51, that is, the two ends of the male terminal 52 respectively extend out of the two ends of the male terminal holder 51 along the axial direction X.

[0259] The two ends of the male terminal 52 respectively passing through the two opposite ends of the male terminal holder 51 can facilitate the connection of the male terminal 52 with the male terminal holder 51, and facilitate the connection of one end of the male terminal 52 with the external circuit structure, and facilitate the insertion of the other end of the male terminal 52 with the female terminal 42, and facilitate use.

[0260] In some embodiments, only the end of the male terminal 52 that needs to be inserted with the female terminal 42 can extend out of the male terminal holder 51. In this case, the male terminal holder 51 can be directly connected with the external circuit to which the male terminal 50 needs to be connected.

[0261] In some embodiments, only the end of the male terminal 52 that needs to be connected with the external circuit can extend out of the male terminal holder 51. In this case, the male terminal holder 51 can be provided with a cavity, and the male terminal 52 is located in the cavity to partially accommodate the female terminal 40, so that the female terminal 42 in the female terminal 40 extends into the cavity to be connected with the male terminal 52.

[0262] In some embodiments, referring to Figure 17 , one end of the male terminal 52 is provided with an external thread 522.

[0263] The external thread 522 refers to a threaded structure formed on the outer circumferential surface of the male terminal 52.

[0264] The external thread 522 is provided on one end of the male terminal 52 to facilitate connection with the external circuit and facilitate installation and use.

[0265] In some embodiments, referring to Figures 6 to 11 , the peripheral side surface of the male terminal 52 is provided with a connecting portion 521, and the connecting portion 521 is connected with the male terminal holder 51.

[0266] The connecting portion 521 refers to a protruding structure provided on the peripheral side surface of the male terminal 52. The connecting portion 521 can be integrally formed with the male terminal 52 to facilitate processing and manufacturing. Of course, the connecting portion 521 can also be separately manufactured and fixedly connected with the male terminal 52 by welding, bonding or the like.

[0267] The connecting portion 521 is connected to the male terminal holder 51, which means that the connecting portion 521 can extend into the interior of the male terminal holder 51, or the connecting portion 521 is bonded, adhered, or the like to the male terminal holder 51 to be fixedly connected to the male terminal holder 51. The connecting portion 521 can be formed in a ring shape, a sheet shape, a plate shape, a rod shape, or the like. Since the connecting portion 521 protrudes from the male terminal 52, in the case where the connecting portion 521 is connected to the male terminal holder 51, the axial X position of the male terminal holder 51 relative to the male terminal 52 can be limited.

[0268] The connecting portion 521 is provided on the peripheral side surface of the male terminal 52 to be connected to the male terminal holder 51, which can more stably connect the male terminal 52 to the male terminal holder 51 and improve the connection strength and stability.

[0269] In some embodiments, the male terminal holder 51 can be injection molded on the male terminal 52 so that the male terminal holder 51 is well connected to the male terminal 52. In addition, in the case where the connecting portion 521 is provided on the male terminal 52, the connecting portion 521 can be embedded in the male terminal holder 51 when the male terminal holder 51 is injection molded.

[0270] In some embodiments, the male terminal holder 51 can be threadedly connected to the male terminal 52, and the connecting portion 521 can be a threaded structure formed on the male terminal 52.

[0271] In some embodiments, the male terminal holder 51 can also be bonded to the male terminal 52.

[0272] In some embodiments, referring to FIG. 17, the male terminal 52 is supported in the male terminal holder 51 by the elastic member 53.

[0273] The elastic member 53 refers to a structure having elasticity. The elastic member 53 can be a spring, a spring sheet, a rubber pad, a rubber block, or the like. The elastic member 53 can be made of a conductive material such as metal. Of course, the elastic member 53 can also be made of an insulating material such as plastic or rubber.

[0274] The male terminal 52 is supported in the male terminal holder 51 by the elastic member 53, and the male terminal 52 is allowed to move in the radial Y direction by the elastic action of the elastic member 53.

[0275] According to some embodiments of the present application, a connector 400 is provided, which comprises a female end 40 and a male end 50. The female end 40 comprises female end terminals 42 and a female end holder 41 supporting the female end terminals 42, and the female end terminals 42 are provided with insertion holes 420. The male end 50 is adapted to accommodate male end terminals 52 inserted into the insertion holes 420 to elastically connect with the female end terminals 42, and a male end holder 51 supports the male end terminals 52. The female end 40 comprises a support structure 43 movably supporting the female end terminals 42 along a radial direction Y of the insertion holes 420, and the support structure 43 is mounted on the female end holder 41. The support structure 43 comprises a support sleeve 431, and a protrusion 432 is provided on a peripheral side of the support sleeve 431. The female end terminals 42 are mounted in the support sleeve 431, and the female end holder 41 is provided with an opening hole 4101 having an inner diameter greater than an outer diameter of the support sleeve 431. A groove 4102 accommodating the protrusion 432 is provided on an inner wall of the opening hole 4101, and a distance from a bottom wall of the groove 4102 to a central axis of the opening hole 4101 is greater than a maximum distance from the protrusion 432 to a central axis of the support sleeve 431. An elastic member 433 elastically abutting against the protrusion 432 is provided in the groove 4102, and the elastic member 433 comprises a wave spring 4331. At least one side of the protrusion 432 is mounted with the wave spring 4331, one side of the wave spring 4331 abuts against one side of the protrusion 432, and the other side of the wave spring 4331 abuts against a corresponding side wall of the groove 4102. The female end holder 41 comprises a ring sleeve 411, a first limiting member 412 provided at one end of the ring sleeve 411, and a second limiting member 413 mounted in the ring sleeve 411. The first limiting member 412 comprises a first limiting portion 4121 extending into the ring sleeve 411. The first limiting portion 4121, the second limiting member 413, and the ring sleeve 411 surround the opening hole 4101 and the groove 4102, and the first limiting portion 4121 and the second limiting member 413 form the groove 4102 therebetween. The male end holder 51 is provided with a positioning structure 511 positioning the support sleeve 431. The positioning structure 511 comprises a positioning groove 5111 provided on the male end holder 51, and the positioning groove 5111 is used for the support sleeve 431 to extend into, so as to position the radial direction Y position of the support sleeve 431. The positioning structure 511 comprises a limiting surface 5112 provided on the male end holder 51, and the limiting surface 5112 is used for stopping and limiting the position of the support sleeve 431 along an axial direction X. A cross section of the male end holder 51 along a vertical direction of the male end terminals 52 is a polygon. Two ends of the male end terminals 52 are arranged through two ends of the male end holder 51 respectively. One end of the male end terminals 52 is provided with an external thread.

[0276] The connector 400 can stably support the female terminal 42 in the female support 41 and achieve radial Y floating of the female terminal 42. The female terminal 42 is a through hole, which can be matched with male terminals 52 of various lengths to achieve axial X floating. This not only facilitates automatic alignment of the male terminal 52 and the female terminal 42 and facilitates insertion of the male terminal 52 and the female terminal 42, thereby reducing the assembly precision requirement of the male terminal 50 and the female terminal 40, but also facilitates installation and use. The elastic member 433 is used to limit the convex part 432 on the support sleeve 431 in the groove 4102, which can reduce the shaking of the support sleeve 431 and the female terminal 42, so that the male terminal 52 and the female terminal 42 are stably connected, thereby achieving large-current conduction, such as 100 amperes (A) or more, and reducing the precision requirement of installation and use.

[0277] According to some embodiments of the present application, the present application also provides a battery device 200 comprising the connector 400 of the above-mentioned embodiments.

[0278] According to some embodiments of the present application, the present application also provides an energy storage device 14 comprising the connector 400 of the above-mentioned embodiments or the battery device 200 of the above-mentioned embodiments, and the battery device 200 is used to store or provide electric energy.

[0279] According to some embodiments of the present application, the present application also provides an energy storage system 13 comprising a power conversion device 131 and the energy storage device 14 of the above-mentioned embodiments, and the power conversion device 131 is electrically connected between a power generation device 132 and the energy storage device 14.

[0280] According to some embodiments of the present application, the present application also provides a power utilization device comprising the connector 400 of the above-mentioned embodiments, the battery device 200 of the above-mentioned embodiments, the energy storage device 14 of the above-mentioned embodiments, or the energy storage system 13 of the above-mentioned embodiments, and the battery device 200 is used to store or provide electric energy.

[0281] According to some embodiments of the present application, the present application also provides a charging network 12 comprising a charging pile and the energy storage device 14 of the above-mentioned embodiments or the energy storage system 13 of the above-mentioned embodiments, and the energy storage device 14 is used to provide electric energy for the charging pile.

[0282] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. These modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any way as long as there is no structural conflict. The present 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 by comprising: The application relates to a connector. The female end comprises a female terminal and a female terminal support supporting the female terminal, and the female terminal is provided with a socket. The male end comprises a male terminal and a male terminal support supporting the male terminal, and the male terminal is adapted to be inserted into the socket to be elastically connected with the female terminal. The female terminal is movably mounted on the female terminal support along the radial direction of the socket, and / or the male terminal is movably mounted on the male terminal support along the radial direction of the socket.

2. The connector of claim 1, wherein The female end comprises a supporting structure movably supporting the female terminal along the radial direction of the socket, and the supporting structure is mounted on the female terminal support.

3. The connector of claim 2, wherein The supporting structure comprises a supporting sleeve, the peripheral side of the supporting sleeve is provided with a convex part, the female terminal is mounted in the supporting sleeve, the female terminal support is provided with an opening, the supporting sleeve is arranged in the opening, the inner diameter of the opening is larger than the outer diameter of the supporting sleeve, the inner wall of the opening is provided with a groove accommodating the convex part, and the distance from the bottom wall of the groove to the central axis of the opening is larger than the maximum distance from the convex part to the central axis of the supporting sleeve.

4. The connector of claim 3, wherein The groove is provided with an elastic member elastically abutting against the convex part.

5. The connector of claim 4, wherein, The elastic member comprises a wave spring, at least one side of the convex part is provided with the wave spring, one side of the wave spring abuts against one side of the convex part, and the other side of the wave spring abuts against the corresponding side wall of the groove.

6. The connector of any one of claims 3-5, wherein, The groove is annularly arranged around the central axis of the opening.

7. The connector of claim 6, wherein The convex part is annular and arranged around the peripheral side of the supporting sleeve.

8. The connector of any one of claims 3-5, 7, wherein, The female terminal support comprises a ring sleeve, a first limiting member arranged at one end of the ring sleeve and a second limiting member mounted in the ring sleeve, the first limiting member comprises a first limiting part extending into the ring sleeve, the first limiting part, the second limiting member and the ring sleeve surround the opening and the groove, and the first limiting part and the second limiting member form the groove.

9. The connector of claim 8, wherein, The first limiting member comprises a second limiting part extending outward along the radial direction of the ring sleeve.

10. The connector of any one of claims 3-5, 7, 9, wherein, The male terminal support is provided with a positioning structure positioning the supporting sleeve.

11. The connector of claim 10, wherein, The positioning structure comprises a positioning groove arranged on the male terminal support, and the positioning groove is used for inserting the supporting sleeve to position the radial position of the supporting sleeve.

12. The connector of claim 10, wherein, The positioning structure comprises a limiting surface arranged on the male terminal support, and the limiting surface is used for stopping and limiting the axial position of the supporting sleeve.

13. The connector of any one of claims 1-5, 7, 9, 11, 12, wherein, The socket is a through hole.

14. The connector of any one of claims 1-5, 7, 9, 11, 12, wherein, The female terminal is a crown spring or a ring spring.

15. The connector of any one of claims 1-5, 7, 9, 11, 12, wherein, The male terminal support is polygonal in the cross section perpendicular to the axial direction of the male terminal.

16. The connector of any one of claims 1-5, 7, 9, 11, 12, wherein, The two ends of the male terminal pass through the two ends of the male terminal support respectively.

17. The connector of claim 16, wherein One end of the male terminal is provided with external threads.

18. The connector of claim 16, wherein, The peripheral side of the male terminal is provided with a connecting part connected with the male terminal support.

19. The connector of any one of claims 1-5, 7, 9, 11, 12, 17, 18, wherein, The male terminal is supported in the male terminal support by an elastic member.

20. A battery device, characterized by The application relates to a connector.

21. An energy storage device, comprising: The application relates to a battery device for storing or providing electric energy.

22. An energy storage system characterized by, comprising a power conversion device electrically connected between the power generating device and the energy storage device as claimed in claim 21.

23. An electrical device, comprising: comprising the connector as claimed in any one of claims 1-19, the battery device as claimed in claim 20, the energy storage device as claimed in claim 21 or the energy storage system as claimed in claim 22, the battery device for storing or providing electrical energy.

24. A charging network characterized by, comprising the charging post and the energy storage device as claimed in claim 21 or the energy storage system as claimed in claim 22, the energy storage device for providing electrical energy to the charging post.

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