Electrical connection device and energy storage tank

Abstract

The application provides an electric connection device and an energy storage box, and relates to the technical field of batteries. The electric connection device comprises a mounting seat, at least two conductive parts and a connecting part. The at least two conductive parts are arranged at intervals on the mounting seat, and the at least two conductive parts are respectively used for connecting different modules. The connecting part is movably connected to the mounting seat. When the connecting part is in a first movable position, the connecting part is connected to the at least two conductive parts to connect the at least two modules. When the connecting part is in a second movable position, the connecting part is disconnected from the at least two conductive parts to disconnect the at least two modules. The electric connection device and the energy storage box are used to solve the problem that the maintenance of the battery module is relatively troublesome and the module is inconvenient to be quickly disconnected from other modules.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to an electrical connection device and an energy storage box. Background Technology

[0002] In new energy storage systems (such as grid peak-shaving energy storage, distributed energy systems, electric vehicle battery packs, etc.), battery modules are usually assembled in a stacked manner, and the modules are connected in series or in parallel through electrical connection devices.

[0003] In existing technologies, electrical connections between modules generally employ blind-mating terminal connections. This method achieves electrical connections between modules through pre-defined insertion structures (such as the mating of pins and sockets). Once the modules are stacked and fixed in place, the modules need to be disassembled, or a special tool needs to be used to disconnect them.

[0004] However, the maintenance of the aforementioned battery modules is relatively troublesome, and it is not convenient to quickly disconnect them from other modules when a module malfunctions. Utility Model Content

[0005] This application provides an electrical connection device and an energy storage box to solve the problem that battery modules are difficult to maintain and are not easy to quickly disconnect from other modules.

[0006] In a first aspect, this application provides an electrical connection device, comprising:

[0007] Mounting base;

[0008] At least two conductive elements are provided, spaced apart from each other on the mounting base, and each conductive element is used to connect different modules.

[0009] A connector is movably connected to the mounting base. When the connector is in a first movable position, it connects at least two of the conductive elements to connect at least two of the modules. When the connector is in a second movable position, it disconnects from at least one of the conductive elements to disconnect the connection of at least two of the modules.

[0010] As an optional implementation, the conductive component includes a first conductive component and a second conductive component, wherein the first conductive component is used to connect to the first module and the second conductive component is used to connect to the second module;

[0011] The first conductive element and the second conductive element are disposed at intervals on opposite sides of the connector;

[0012] The connector includes a rotating shaft and a connecting piece. The connecting piece is connected to the rotating shaft, and the rotating shaft is rotatably connected to the mounting base to drive the connecting piece to rotate relative to the mounting base. The connecting piece is used to connect the first conductive element and the second conductive element.

[0013] As an optional implementation, the connecting piece includes a mounting section and a connecting section that are connected to each other;

[0014] The mounting section is connected to the rotating shaft, and the connecting section is connected to the end of the mounting section;

[0015] When the connector is in the first active position, the connecting segment connects the first conductive element and the second conductive element; when the connector is in the second active position, the connecting segment is disconnected from at least one of the first conductive element and the second conductive element.

[0016] As an optional implementation, the connecting segment includes a first sub-connecting segment and a second sub-connecting segment, the first sub-connecting segment and the second sub-connecting segment being connected to both ends of the mounting segment;

[0017] When the connector is in the first active position, the first sub-connecting segment is connected to the first conductive element, and the second sub-connecting segment is connected to the second conductive element;

[0018] When the connector is in the second active position, the first sub-connecting segment is disconnected from the first conductive element, and / or the second sub-connecting segment is disconnected from the second conductive element.

[0019] As an optional implementation, the first sub-connecting segment is wound around the side wall of the rotating shaft, and the second sub-connecting segment is wound around the side wall of the rotating shaft, with the first sub-connecting segment and the second sub-connecting segment arranged symmetrically along the axis of the rotating shaft.

[0020] One of the first sub-connecting segment and the second sub-connecting segment is opposite to one end of the mounting segment and faces the other end closer to the mounting segment.

[0021] As an optional implementation, the shaft has a slot that extends radially along the shaft, and the mounting section is inserted into the slot.

[0022] As an optional implementation, the first conductive element includes a first connecting portion and a second connecting portion connected to each other. The first connecting portion is disposed on the outside of the mounting base and is used to connect with the first module. The second connecting portion is disposed on the inside of the mounting base and is used to connect with the connector.

[0023] The second conductive component includes a third connecting portion and a fourth connecting portion connected to each other. The third connecting portion is disposed on the outside of the mounting base and is used to connect with the second module. The fourth connecting portion is disposed on the inside of the mounting base and is used to connect with the connector.

[0024] As an optional implementation, the first conductive element further includes a first intermediate section, which connects the first connecting portion and the second connecting portion, and the first intermediate section is connected to the mounting base;

[0025] The second conductive element further includes a second intermediate section, which connects the third connecting part and the fourth connecting part, and is connected to the mounting base.

[0026] As an optional implementation, both the second connecting portion and the fourth connecting portion are arranged around the circumference of the rotating shaft. Along the circumference of the rotating shaft, the end of the second connecting portion opposite to the first intermediate section and the end of the fourth connecting portion opposite to the second intermediate section are arranged facing each other and have a first gap.

[0027] Along the arrangement direction of the first conductive element and the second conductive element, the size of the first gap is smaller than the size of the connecting segment;

[0028] When the connector is in the first movable position, the connecting segment corresponds to the first gap, part of the connecting segment abuts against the side of the second connecting part facing the rotating shaft, and part of the connecting segment abuts against the side of the fourth connecting part facing the rotating shaft;

[0029] When the connector is in the second movable position, the connecting segment is located between the rotating shaft and the second connecting part, or the connecting segment is located between the rotating shaft and the fourth connecting part;

[0030] or,

[0031] Both the second connecting part and the fourth connecting part are arranged around the circumference of the rotating shaft, and the second connecting part and the fourth connecting part are symmetrically arranged along the axis of the rotating shaft.

[0032] The radius of the second connecting portion facing the rotating shaft is smaller than the radius of the first sub-connecting segment facing away from the rotating shaft; the radius of the fourth connecting portion facing the rotating shaft is smaller than the radius of the second sub-connecting segment facing away from the rotating shaft.

[0033] Along the circumferential direction of the axis of rotation, there is a second gap between the end of the second connecting portion away from the first intermediate section and the end of the fourth connecting portion near the second intermediate section; there is a third gap between the end of the fourth connecting portion away from the second intermediate section and the end of the second connecting portion near the first intermediate section.

[0034] When the connector is in the first active position, the first sub-connecting segment is sandwiched between the rotating shaft and the second connecting part, and the second sub-connecting segment is sandwiched between the rotating shaft and the fourth connecting part;

[0035] When the connector is in the second active position, one of the first sub-connecting segment and the second sub-connecting segment is located within the second gap, and the other is located within the third gap;

[0036] or,

[0037] The second connecting portion has a first extension section extending toward the pivot, and the fourth connecting portion has a second extension section extending toward the pivot.

[0038] A fourth gap exists between the first extension segment and the second extension segment in a direction perpendicular to the arrangement direction of the first conductive element and the second conductive element;

[0039] The connecting piece has a first surface and a second surface that are disposed opposite to each other;

[0040] When the connector is in the first movable position, the connecting piece is embedded in the fourth gap, and the first surface of the connecting piece abuts against the first extension, and the second surface of the connecting piece abuts against the second extension.

[0041] When the connector is in the second active position, part of the connecting piece disengages from the fourth gap, the first surface of the connecting piece disengages from the first extension, and the second surface of the connecting piece disengages from the second extension.

[0042] As an optional implementation, the mounting base includes a first mounting portion and a second mounting portion;

[0043] The first mounting part and the second mounting part form a receiving cavity, and the connecting member is disposed in the receiving cavity and is movably connected to the second mounting part;

[0044] The first conductive element is connected to the first mounting portion, and a portion of the first conductive element extends into the receiving cavity for connection with the connector; a portion of the first conductive element extends to the outside of the receiving cavity for connection with the first module.

[0045] The second conductive element is connected to the second mounting portion, and a portion of the second conductive element extends into the receiving cavity for connection with the connector; a portion of the second conductive element extends to the outside of the receiving cavity for connection with the second module.

[0046] As an optional implementation, a handheld component is also included, the handheld component comprising a connected handle and a connecting shaft;

[0047] The handle is located outside the receiving cavity, the rotating shaft is rotatably connected to the second mounting part, and part of the connecting shaft extends into the receiving cavity and is coaxially connected to the rotating shaft.

[0048] As an optional implementation, the conductive component includes a first conductive component and a second conductive component, wherein the first conductive component is used to connect to the first module and the second conductive component is used to connect to the second module;

[0049] The connector is located on the same side of the first conductive element and the second conductive element in a direction perpendicular to the arrangement direction of the first conductive element and the second conductive element;

[0050] The connector is used to translate relative to the mounting base to move closer to or further away from the first conductive element and the second conductive element;

[0051] When the connector switches from the first active position to the second active position, the connector moves away from the first conductive element and the second conductive element to disengage from the first conductive element and the second conductive element;

[0052] When the connector switches from the second active position to the first active position, the connector approaches the first conductive element and the second conductive element to connect the first conductive element and the second conductive element.

[0053] Secondly, this application provides an energy storage box, including a first module, a second module, and an electrical connection device of any one of the above.

[0054] The first module and the second module are stacked.

[0055] Along the stacking direction of the first module and the second module, the electrical connection device is disposed between the first module and the second module;

[0056] The first module has a first connector, which is connected to one of the conductive elements of the electrical connection device;

[0057] The second module has a second connector, which is connected to another conductive element of the electrical connection device.

[0058] The electrical connection device and energy storage box provided in this application include a mounting base, at least two conductive elements, and a connector. The at least two conductive elements are spaced apart from each other on the mounting base, and each conductive element is used to connect different modules. The connector is movably connected to the mounting base. When the connector is in a first movable position, it connects to at least two conductive elements to connect at least two modules. When the connector is in a second movable position, it disconnects from at least one conductive element to disconnect the connection of at least two modules.

[0059] By incorporating movable connectors as independent conductive bridges, at least two conductive elements can be bridged simultaneously when the connector is in its first movable position. This establishes a controllable electrical path outside the stacked modules, ensuring proper conductivity between them. In case of maintenance or malfunction, simply moving the connector to its second movable position to detach it from at least one conductive element allows for rapid electrical isolation between at least two modules without loosening or disassembling any module's mechanical fasteners, significantly improving the convenience of battery module maintenance. Attached Figure Description

[0060] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0061] Figure 1 This is a schematic diagram of the structure of the energy storage box provided in the embodiments of this application;

[0062] Figure 2 for Figure 1 Schematic diagram of the installation status of the power connection device;

[0063] Figure 3 This is a schematic diagram of the structure of the electrical connection device provided in the embodiments of this application;

[0064] Figure 4 for Figure 3 Exploded view of the mounting base and connectors;

[0065] Figure 5 An exploded view of the electrical connection device provided in the embodiments of this application;

[0066] Figure 6 A schematic diagram of the structure of the electrical connection device provided in the embodiment of this application when the connector is in the first active position;

[0067] Figure 7 for Figure 6 A schematic diagram of the electrical connection device in the middle when the connector is in the second active position;

[0068] Figure 8This is a schematic diagram of the structure of another electrical connection device provided in an embodiment of this application when the connector is in the first active position;

[0069] Figure 9 A schematic diagram of the structure of another electrical connection device provided in an embodiment of this application when the connector is in the first active position;

[0070] Figure 10 for Figure 9 A schematic diagram of the electrical connection device in the middle when the connector is in the second active position;

[0071] Figure 11 This is a schematic diagram of the structure of another electrical connection device provided in the embodiments of this application when the connector is in the first active position.

[0072] Explanation of reference numerals in the attached figures:

[0073] 100. First conductive component;

[0074] 110. First connecting part;

[0075] 120. Second connecting part; 121. First extension section;

[0076] 130. The first middle section;

[0077] 200. Second conductive component;

[0078] 210. Third connecting part;

[0079] 220. Fourth connecting section; 221. Second extension section;

[0080] 230. The second middle section;

[0081] 300. Connectors;

[0082] 310, pivot; 311, slot; 320, connecting piece; 321, mounting section; 322, connecting section; 3221, first sub-connecting section; 3222, second sub-connecting section; 323, first surface; 324, second surface;

[0083] 400. Mounting base; 401. Receiving cavity;

[0084] 410. First Installation Department;

[0085] 420. Second Installation Department;

[0086] 501, First gap; 502, Second gap; 503, Third gap; 504, Fourth gap;

[0087] 600. Handheld items;

[0088] 610. Handle;

[0089] 620. Connecting shaft;

[0090] 800, Module 1;

[0091] 900, Second Module.

[0092] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0093] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of this application.

[0094] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the embodiments of this application and their implementations, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in the embodiments of this application can be understood according to the specific circumstances.

[0095] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0096] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0097] In this application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0098] As can be seen from the background technology, in new energy storage systems (such as grid peak-shaving energy storage, distributed energy systems, electric vehicle battery packs, etc.), battery modules are usually assembled in a stacked manner, and the modules are connected in series or in parallel through electrical connection devices.

[0099] In existing technologies, electrical connections between modules generally employ blind-mating terminal connections. This method achieves electrical connections between modules through pre-defined insertion structures (such as the mating of pins and sockets). Once the modules are stacked and fixed in place, the modules need to be disassembled, or a special tool needs to be used to disconnect them.

[0100] However, this permanent or semi-permanent connection method makes battery module maintenance quite cumbersome. When a module experiences performance degradation, abnormal internal resistance, or thermal runaway risk, maintenance personnel must first power off and shut down the system, then use specialized tools to disassemble the surrounding structure and adjacent modules before they can remove the faulty module, consuming a significant amount of time and manpower. Furthermore, in emergency fault situations, rapid electrical isolation cannot be achieved, potentially triggering a chain reaction due to the inability to contain the fault in time, endangering the safety of the entire energy storage system.

[0101] In view of the above, embodiments of this application provide an electrical connection device and an energy storage box, wherein the electrical connection device includes a mounting base, at least two conductive elements, and a connector; the at least two conductive elements are spaced apart from each other on the mounting base, and the at least two conductive elements are respectively used to connect different modules; the connector is movably connected to the mounting base, and when the connector is in a first movable position, it connects at least two conductive elements to connect at least two modules; when the connector is in a second movable position, it is disconnected from at least one conductive element to disconnect the connection of at least two modules.

[0102] By setting up movable connectors as independent conductive bridges, at least two conductive components can be bridged simultaneously when the connectors are in the first active position, thereby establishing a controllable electrical path outside the stacked modules and ensuring normal conduction between modules.

[0103] When maintenance is required or an abnormality occurs, simply move the connector to the second active position to disconnect it from at least one conductive component. This allows for rapid electrical isolation between at least two modules without loosening or disassembling any module mechanical fasteners.

[0104] Because the target of the disconnection operation has changed from the entire module to a single connector, the faulty module can be quickly and selectively removed from the high-voltage circuit, which greatly simplifies the maintenance process, shortens system downtime, and effectively solves the problem of cumbersome maintenance of battery modules and the difficulty in quickly disconnecting them from other modules.

[0105] The technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0106] Combination Figure 1 and Figure 2 As shown, a first aspect of this application provides an electrical connection device, including a mounting base 400, at least two conductive elements, and a connector 300; the at least two conductive elements are spaced apart from each other on the mounting base 400, and the at least two conductive elements are respectively used to connect different modules; the connector 300 is movably connected to the mounting base 400, and when the connector 300 is in a first active position, it connects to at least two conductive elements to connect at least two modules; when the connector 300 is in a second active position, it disconnects from at least one conductive element to disconnect the connection of at least two modules.

[0107] Understandably, the mounting base 400 is the structural and supporting foundation of the entire electrical connection device, providing precise positioning and stable insulation support for the first conductive element 100 and the second conductive element 200, ensuring that the first conductive element 100 and the second conductive element 200 can be arranged at a fixed and safe interval to prevent short circuits between them.

[0108] It should be noted that the conductive components can be connected one-to-one with the modules.

[0109] For example, connector 300 can control the on / off state of two conductive elements, thereby enabling connection or disconnection between two modules.

[0110] When there are multiple modules connected in series, the electrical connection device provided in the embodiments of this application can be provided between two adjacent modules to realize the connection or disconnection between the two adjacent modules.

[0111] Specifically, the conductive component may include a first conductive component 100 and a second conductive component 200. The first conductive component 100 and the second conductive component 200 are spaced apart from each other on the mounting base 400. The first conductive component 100 is used to connect with the first module 800; the second conductive component 200 is used to connect with the second module 900. The first module 800 and the second module 900 are two adjacent modules in a series of modules.

[0112] These two conductive components serve as fixed interfaces for connecting to the first module 800 and the second module 900, respectively. This arrangement achieves interface standardization and functional separation of the electrical connection device. The two conductive components are fixed to the mounting base 400 and are responsible for establishing a reliable electrical connection with their respective battery modules.

[0113] The connector 300 is movably connected to the mounting base 400. The connector 300 is movable relative to the mounting base 400 to switch between a first movable position and a second movable position. The movable connection characteristic of the connector 300 makes the connection and disconnection of the circuit no longer dependent on the mechanical installation and removal of the module as a whole.

[0114] Specifically, when the connector 300 is in the first active position, the connector 300 connects the first conductive element 100 and the second conductive element 200 to connect the first module 800 and the second module 900.

[0115] At this time, the connector 300 is in contact with both the first conductive element 100 and the second conductive element 200, establishing a current path between them. This enables electrical interconnection between the two battery modules, allowing electrical energy to be transmitted normally and ensuring the integrity of the energy storage system under normal operating conditions.

[0116] When the connector 300 is in the second active position, the connector 300 is disconnected from at least one of the first conductive element 100 and the second conductive element 200 to disconnect the first module 800 and the second module 900.

[0117] At this point, connector 300 is disconnected from at least one conductive component, physically forming a visible and reliable air-insulating gap that enables electrical isolation between the two modules. This not only ensures safe maintenance but, more importantly, allows for rapid disconnection in the event of a module malfunction, removing the faulty module from the circuit, effectively preventing the fault from escalating, and improving the system's safety and availability.

[0118] In summary, the electrical connection device provided in this application embodiment, by setting a movable connector 300 as an independent conductive bridge, can simultaneously bridge the first conductive element 100 and the second conductive element 200 when the connector 300 is in the first movable position, thereby establishing a controllable electrical path outside the stacked first module 800 and second module 900, ensuring normal conduction between modules.

[0119] When maintenance is required or an abnormality occurs, simply move the connector 300 to the second active position to disengage it from the first conductive element 100 or the second conductive element 200. This will achieve electrical isolation between the first module 800 and the second module 900 without loosening or disassembling any module mechanical fixation.

[0120] Because the target of the disconnection operation has changed from the entire module to a single connector 300, the faulty module can be quickly and selectively removed from the high-voltage circuit, which greatly simplifies the maintenance process, shortens the system downtime, and effectively solves the problem of troublesome battery module maintenance and difficulty in quickly disconnecting from other modules.

[0121] It should be noted that the connector 300 can be rotatably connected to the mounting base 400, so as to switch between the first active position and the second active position by rotation. The connector 300 can also be slidably connected to the mounting base 400, so as to switch between the first active position and the second active position by translation. This application embodiment does not impose any limitations on this, as long as it enables rapid switching between the first module 800 and the second module 900.

[0122] It should also be noted that the connector 300 can also control the on / off state of at least some of the conductive components among three or more conductive components, thereby realizing the on / off state between at least some of the modules among three or more modules.

[0123] Specifically: when connector 300 is connected to all conductive components at the same time, the connection between each module can be realized; when connector 300 is disconnected from each conductive component, the disconnection between each module can be realized.

[0124] When connector 300 is connected to one part of the conductive components and disconnected from another part of the conductive components, the module corresponding to the conductive component connected to connector 300 can be connected, and the module corresponding to the conductive component disconnected from connector 300 is disconnected.

[0125] For example, when there are many conductive components, the multiple conductive components can be arranged in a ring or in a straight line. Correspondingly, the connector 300 can be provided with multiple conductive contacts. The arrangement of each conductive contact is consistent with the arrangement of the conductive components, so that each conductive contact can be connected to different conductive components.

[0126] The following is a detailed description of an embodiment in which the connector 300 is rotatably connected to the mounting base 400:

[0127] Combination Figure 3 and Figure 4 As shown, in some embodiments, the first conductive element 100 and the second conductive element 200 are disposed at intervals on opposite sides of the connector 300.

[0128] With the first conductive element 100 and the second conductive element 200 located on either side of the connector 300, the resulting current path can be as short as possible, which helps to reduce connection resistance, reduce energy loss, and improve power carrying capacity. At the same time, this central layout also helps to achieve a compact layout of the device, saving space occupied in the battery module stacking, and is conducive to maintaining or improving the energy density of the entire energy storage box.

[0129] Specifically, the connector 300 includes a rotating shaft 310 and a connecting piece 320. The connecting piece 320 is connected to the rotating shaft 310, and the rotating shaft 310 is rotatably connected to the mounting base 400 to drive the connecting piece 320 to rotate relative to the mounting base 400. The connecting piece 320 is used to connect the first conductive element 100 and the second conductive element 200.

[0130] The rotating shaft 310 provides a center of rotation and mechanical support for the connecting piece 320, ensuring that the connecting piece 320 can perform repeatable and high-precision movements around a fixed axis, avoiding wobbling or offset, thereby ensuring the stability and consistency of the contact position each time it is connected, and extending the service life of the device.

[0131] The connecting piece 320 acts as a conductive bridge, and can directly form a large-area, low-resistance physical contact with the first conductive element 100 and the second conductive element 200 simultaneously when in the connected position.

[0132] It should be noted that the shape, material, and structure of the conductive sheet can determine its current carrying capacity and temperature rise performance.

[0133] In practice, the rotating shaft 310 rotates relative to the mounting base 400 to drive the connecting piece 320 to rotate relative to the mounting base 400. When the connecting piece 320 rotates to contact both the first conductive element 100 and the second conductive element 200, the circuit is turned on; when the connecting piece 320 rotates away, the circuit is turned off. It features simple operation, reliable action, and easy sealing and application of operating force.

[0134] This method of driving the connecting piece 320 to move by rotation requires less force and less operating space compared to the traditional linear plug-in wiring structure, making it particularly suitable for operation in narrow module gaps.

[0135] Combination Figure 8 As shown, in some embodiments, the connecting piece 320 includes a mounting section 321 and a connecting section 322 connected to each other; the mounting section 321 is connected to the rotating shaft 310, and the connecting section 322 is connected to the end of the mounting section 321; when the connector 300 is in a first active position, the connecting section 322 is connected to the first conductive element 100 and the second conductive element 200; when the connector 300 is in a second active position, the connecting section 322 is disconnected from at least one of the first conductive element 100 and the second conductive element 200.

[0136] The mounting section 321 is used to connect the connecting piece 320 to the rotating shaft 310. As the lever arm between the rotating shaft 310 and the connecting section 322, the mounting section 321 can effectively transmit the rotational torque of the rotating shaft 310 and convert it into the action of the connecting section 322 contacting or separating from the conductive component.

[0137] The connecting segment 322 is used to establish a connection between the first conductive element 100 and the second conductive element 200. Positioning the connecting segment 322 at the end of the mounting segment 321 means that the connecting segment 322 has a maximum linear velocity during rotation, which helps to quickly establish or cut off the electric arc at the moment of connection and disconnection.

[0138] Specifically, when the connecting piece 320 is rotated to the first active position (usually the closed position), the connecting section 322 will simultaneously and reliably press against the contact surfaces of the first conductive element 100 and the second conductive element 200.

[0139] For example, the connection segment 322 does not need to perform the installation function. The connection segment 322 can be configured to be suitable for electrical contact, such as increasing the contact area, using a specific plating or elastic structure, thereby ensuring low contact resistance and excellent current carrying capacity under normal operating conditions, reducing energy loss and heat generation.

[0140] When the connecting piece 320 is rotated to the second active position (usually the open position), the connecting section 322 will completely separate from at least one of the first conductive element 100 and the second conductive element 200, forming an air insulation gap.

[0141] Combination Figure 9 and Figure 10 As shown, in some embodiments, the connecting segment 322 includes a first sub-connecting segment 3221 and a second sub-connecting segment 3222, which are connected to both ends of the mounting segment 321.

[0142] The first sub-connecting segment 3221 and the second sub-connecting segment 3222 can serve as two independent contact units. The first sub-connecting segment 3221 can be specifically used to connect with the first conductive element 100, and the second sub-connecting segment 3222 can be specifically used to connect with the second conductive element 200.

[0143] The mounting section 321 acts as a lever arm, with the first sub-connecting section 3221 and the second sub-connecting section 3222 symmetrically arranged at both ends of the mounting section 321. When the rotating shaft 310 drives the mounting section 321 to rotate, the two sub-connecting sections 322 will synchronously approach or move away from their respective conductive parts with the same motion trajectory.

[0144] This symmetrical structure helps eliminate eccentric torque, making operation smoother and reducing wear on the shaft 310 and mounting base 400. At the same time, it ensures the synchronicity of the two connection points being connected and disconnected simultaneously, avoiding the risk of arcing or instantaneous single-point overcurrent that may occur due to asynchronous actions.

[0145] Specifically, when the connector 300 is in the first active position, the first sub-connecting segment 3221 is connected to the first conductive element 100, and the second sub-connecting segment 3222 is connected to the second conductive element 200.

[0146] After the current flows from the first module 800 into the first conductive element 100, it can enter the connecting piece 320 through the first sub-connecting section 3221, and then flow into the second conductive element 200 through the second sub-connecting section 3222, and finally reach the second module 900. With this configuration, a fast electrical connection between the first module 800 and the second module 900 can be achieved.

[0147] More specifically, when the connector 300 is in the second active position, the first sub-connecting segment 3221 is disconnected from the first conductive element 100, and / or the second sub-connecting segment 3222 is disconnected from the second conductive element 200.

[0148] The first sub-connecting segment 3221 is disconnected from the first conductive element 100, the second sub-connecting segment 3222 is disconnected from the second conductive element 200, or both sub-connecting segments 322 are simultaneously disconnected from their respective conductive elements. This is equivalent to connecting disconnection points in series in the circuit, which can achieve rapid disconnection of the first module 800 and the second module 900.

[0149] When the two sub-connecting segments 322 simultaneously disconnect from their respective conductive parts, two disconnection points are formed, which is equivalent to doubling the electrical isolation distance, improving insulation safety, and making them more resistant to possible instantaneous overvoltages.

[0150] Furthermore, the two disconnect points provide redundant safety guarantees. Even if the insulation performance of one disconnect point deteriorates due to some accident (such as contamination), the other disconnect point can still ensure that the circuit is reliably disconnected, which greatly enhances the reliability of fault isolation.

[0151] Combination Figure 6 and Figure 7As shown, in some embodiments, the first sub-connecting segment 3221 is wound around the side wall of the rotating shaft 310, and the second sub-connecting segment 3222 is wound around the side wall of the rotating shaft 310.

[0152] By designing the sub-connector segment 322 as a curved shape that surrounds the pivot 310, rather than extending radially directly from the mounting segment 321, the overall size of the connector 300 in the radial direction (i.e., perpendicular to the pivot 310) can be significantly reduced. This allows the electrical connection device to be installed in the extremely limited space of a battery module gap without interfering with the surrounding structure.

[0153] Specifically, the first sub-connecting segment 3221 and the second sub-connecting segment 3222 are symmetrically arranged along the axis of the rotating shaft 310.

[0154] Central symmetry ensures that the overall mass distribution of the connector 300 is symmetrical about the rotating shaft 310. During rotation, no unbalanced centrifugal force or vibration is generated, resulting in a lighter and smoother operating feel.

[0155] Meanwhile, the symmetrical structure ensures that the current path from the first conductive element 100 to the second conductive element 200 is symmetrical. This means that the current can be evenly distributed on the first sub-connecting segment 3221 and the second sub-connecting segment 3222 of the connecting piece 320, avoiding overheating of a single arm and improving the overall current carrying capacity and reliability.

[0156] One of the first sub-connecting segment 3221 and the second sub-connecting segment 3222 is away from the end of the mounting segment 321 and faces the other end closer to the mounting segment 321.

[0157] When the connector 300 is rotated to the second active position, the free ends of the two sub-connecting segments 322 can point towards each other rather than away from each other, thus achieving a sufficient safe insulation distance between the two contacts and their respective conductive parts even at a small rotation angle.

[0158] In some embodiments, the mounting segment 321, the first sub-connecting segment 3221, and the second sub-connecting segment 3222 can be an integral structure, that is, the connecting piece 320 is an integral structure. This configuration eliminates the mechanical connection interface between the segments.

[0159] The one-piece molded connecting piece 320 can withstand greater operating torque and vibration impact, avoiding loosening of the connection that may be caused by repeated operation.

[0160] Furthermore, since the connecting piece 320 is an integral structure, there is no contact resistance between different parts when the current flows within the entire connecting piece 320. The conductive path is continuous and complete, the resistance is lower, and less heat is generated when energized.

[0161] In addition, the one-piece molded connecting piece 320 can be formed in one step by mold (such as stamping or casting), which has high production efficiency, controllable cost, and the size and performance of each product are highly consistent, ensuring quality reliability.

[0162] Combination Figure 5 As shown, in some embodiments, the shaft 310 has a slot 311 that extends radially along the shaft 310, and the mounting section 321 is inserted into the slot 311.

[0163] Understandably, the slot 311 provides an effective mounting position for the mounting section 321. After the mounting section 321 is inserted into the slot 311, the first sub-connecting section 3221 and the second sub-connecting section 3222 located at both ends of the mounting section 321 are located outside the slot 311 and can be wrapped around and attached to the side wall of the rotating shaft 310.

[0164] By using the first sub-connecting segment 3221 and the second sub-connecting segment 3222 to wrap around the side wall of the rotating shaft 310, the connection between the connecting piece 320 and the rotating shaft 310 can be achieved without the need for additional fasteners, thus reducing the complexity of the connector 300.

[0165] This configuration allows the pivot 310 to provide support for the first sub-connecting segment 3221 and the second sub-connecting segment 3222, ensuring that the first sub-connecting segment 3221 and the second sub-connecting segment 3222 maintain their necessary shape during long-term use, thereby guaranteeing stability when in contact with the first conductive element 100 and the second conductive element 200.

[0166] It should be noted that the first sub-connecting segment 3221 and the second sub-connecting segment 3222 can be wound in the same direction on the side wall of the rotating shaft 310 so that the first sub-connecting segment 3221 and the second sub-connecting segment 3222 are symmetrically arranged along the axis of the rotating shaft 310.

[0167] Specifically, the slot 311 extends radially along the shaft 310, which ensures that after the mounting section 321 is inserted, the direction of its lever arm is consistent with the rotational drive direction of the shaft 310.

[0168] The radially extending slot 311 allows the mounting section 321 to extend along the radius of the shaft 310, so that when the shaft 310 rotates, torque can be transmitted to the mounting section 321 most directly and efficiently, ultimately driving the connecting section 322 to move. This design helps reduce energy loss and internal structural stress, ensuring efficient and reliable power transmission.

[0169] Furthermore, the slot 311 fixes the circumferential angle of the mounting section 321 relative to the rotating shaft 310, thereby accurately determining the position of the connecting section 322, ensuring that the connecting section 322 can be accurately aligned with the corresponding conductive element when the connector 300 is in the first and second active positions.

[0170] Combination Figure 5 As shown, in some embodiments, the first conductive element 100 includes a first connecting portion 110 and a second connecting portion 120 connected to each other. The first connecting portion 110 is disposed on the outside of the mounting base 400 and is used to connect with the first module 800. The second connecting portion 120 is disposed on the inside of the mounting base 400 and is used to connect with the connector 300.

[0171] Understandably, the first connection part 110 is the interface for connecting the first conductive element 100 and the first module 800. The first connection part 110 is located on the outside of the mounting base 400 to facilitate connection with the first module 800.

[0172] Specifically, the first connecting part 110 can be configured to match the interface of the first module 800 (such as bolt holes, copper busbars, etc.) to facilitate a stable and reliable fixed connection with the first module 800. The connection between the first connecting part 110 and the first module 800 can be semi-permanent, requiring minimal changes after initial installation.

[0173] The second connection part 120 is the interface used by the first conductive element 100 to connect with the connector 300. The second connection part 120 is located inside the mounting base 400 and can be relatively isolated from the external environment to reduce the intrusion of pollutants such as dust and moisture, reduce the risk of oxidation and corrosion, ensure the cleanliness of the contact surface, and thus improve the long-term reliability of electrical contact.

[0174] Combination Figure 5 As shown, the second conductive element 200 includes a third connecting portion 210 and a fourth connecting portion 220 connected to each other. The third connecting portion 210 is disposed on the outside of the mounting base 400 and is used to connect with the second module 900. The fourth connecting portion 220 is disposed on the inside of the mounting base 400 and is used to connect with the connector 300.

[0175] Understandably, the third connection part 210 is the interface for connecting the second conductive element 200 and the second module 900. The third connection part 210 is located on the outside of the mounting base 400 to facilitate connection with the second module 900.

[0176] Specifically, the third connection part 210 can be configured to match the interface of the second module 900 (such as bolt holes, copper busbars, etc.) to facilitate a stable and reliable fixed connection with the second module 900. The connection between the third connection part 210 and the second module 900 can be semi-permanent, requiring minimal changes after initial installation.

[0177] The fourth connection part 220 is the interface used by the second conductive element 200 to connect with the connector 300. The fourth connection part 220 is located inside the mounting base 400 and can be relatively isolated from the external environment to reduce the intrusion of pollutants such as dust and moisture, reduce the risk of oxidation and corrosion, ensure the cleanliness of the contact surface, and thus improve the long-term reliability of electrical contact.

[0178] Combination Figure 5 As shown, in some embodiments, the first conductive element 100 further includes a first intermediate section 130, which connects the first connecting portion 110 and the second connecting portion 120, and is connected to the mounting base 400.

[0179] The first intermediate section 130 enables physical extension and electrical continuity from the outside to the inside of the mounting base 400. The first intermediate section 130 is responsible for spanning the physical structure of the mounting base 400, reliably connecting the first connection portion 110 on the outside for connecting the first module 800 to the second connection portion 120 on the inside for switching operations, forming a complete current path.

[0180] For example, the first intermediate section 130 can be mounted on the mounting base 400 by crimping, snap-fitting or screw fixing.

[0181] The mounting base 400 provides stable support for the entire first conductive element 100, ensuring its precise and constant position. This prevents the first conductive element 100 from shaking or shifting during the operation of the connector 300, thereby ensuring the long-term alignment accuracy and connection reliability of the contact between the first conductive element 100 and the first module 800, and between the first conductive element 100 and the connector 300.

[0182] The first connecting part 110, the first intermediate section 130 and the second connecting part 120 can be an integral structure, that is, the first conductive element 100 is an integral structure.

[0183] The integrally molded first conductive component 100 can withstand greater operating torque and vibration impact, avoiding loosening of the connection that may be caused by repeated operation.

[0184] Furthermore, since the first conductive element 100 is an integral structure, there is no contact resistance between different parts when the current flows within the entire first conductive element 100. The conductive path is continuous and complete, the resistance is lower, and less heat is generated when energized.

[0185] In addition, the integrally formed first conductive component 100 can be formed in one step by mold (such as stamping or casting), which has high production efficiency, controllable cost, and the size and performance of each product are highly consistent, ensuring quality reliability.

[0186] Furthermore, the second conductive element 200 also includes a second intermediate section 230, which connects the third connecting part 210 and the fourth connecting part 220, and is connected to the mounting base 400.

[0187] The second intermediate section 230 enables physical extension and electrical continuity from the outside to the inside of the mounting base 400. The second intermediate section 230 is responsible for spanning the physical structure of the mounting base 400, reliably connecting the third connection part 210 on the outside for connecting the second module 900 to the fourth connection part 220 on the inside for switching operations, forming a complete current path.

[0188] For example, the second intermediate section 230 can be mounted on the mounting base 400 by crimping, snap-fitting or screw fixing.

[0189] The mounting base 400 provides stable support for the entire second conductive element 200, ensuring its precise and constant position. This prevents the first conductive element 100 from shaking or shifting during the operation of the connector 300, thereby guaranteeing the long-term alignment accuracy and connection reliability of the contact between the second conductive element 200 and the second module 900, and between the second conductive element 200 and the connector 300.

[0190] The third connecting part 210, the second intermediate section 230 and the fourth connecting part 220 can be an integral structure, that is, the second conductive element 200 is an integral structure.

[0191] The integrally molded second conductive component 200 can withstand greater operating torque and vibration impact, avoiding loosening of the connection that may be caused by repeated operation.

[0192] Furthermore, since the second conductive element 200 is an integral structure, there is no contact resistance between different parts when the current flows within the entire second conductive element 200. The conductive path is continuous and complete, the resistance is lower, and less heat is generated when energized.

[0193] In addition, the one-piece molded second conductive component 200 can be formed in one step by mold (such as stamping or casting), which has high production efficiency, controllable cost, and the size and performance of each product are highly consistent, ensuring quality reliability.

[0194] Combination Figure 8As shown, in some embodiments, the second connecting portion 120 and the fourth connecting portion 220 are both arranged around the periphery of the rotating shaft 310. Along the circumference of the rotating shaft 310, the end of the second connecting portion 120 facing away from the first intermediate section 130 and the end of the fourth connecting portion 220 facing away from the second intermediate section 230 are arranged facing each other, and there is a first gap 501 between them.

[0195] Understandably, the second connecting part 120 and the fourth connecting part 220 form two arc-shaped gate seats that surround the rotating shaft 310 to facilitate the entry and exit of the connecting section 322.

[0196] A first gap 501 is formed between the end of the second connecting portion 120 away from the first intermediate section 130 and the end of the fourth connecting portion 220 away from the second intermediate section 230, forming an insulating gap between the second connecting portion 120 and the fourth connecting portion 220.

[0197] Specifically, along the arrangement direction of the first conductive element 100 and the second conductive element 200, the size of the first gap 501 is smaller than the size of the connecting segment 322.

[0198] This configuration ensures that when the connector 300 is rotated to the first active position, the connecting segment 322 has sufficient dimensions to simultaneously and stably bridge and press against the second connecting portion 120 and the fourth connecting portion 220.

[0199] In specific implementation, when the connector 300 is in the first active position, the connecting segment 322 corresponds to the first gap 501, part of the connecting segment 322 abuts against the side of the second connecting part 120 facing the rotating shaft 310, and part of the connecting segment 322 abuts against the side of the fourth connecting part 220 facing the rotating shaft 310.

[0200] The two ends of the connecting section 322 form a tight mechanical contact and electrical connection with the second connecting part 120 and the fourth connecting part 220, respectively. At this time, the current can flow from the second connecting part 120 of the first conductive member 100 to the connecting section 322, and then to the fourth connecting part 220 of the second conductive member 200, and the circuit between the first module 800 and the second module 900 is connected.

[0201] When the connector 300 is in the second active position, the connecting segment 322 is located between the rotating shaft 310 and the second connecting part 120, or the connecting segment 322 is located between the rotating shaft 310 and the fourth connecting part 220.

[0202] The connecting segment 322 is completely removed from the first gap 501 and instead rests close to one side of the rotating shaft 310, adjacent to one of the second connecting portion 120 and the fourth connecting portion 220, but at a significant distance from the other. This re-establishes a safe air-insulated gap between the connecting segment 322 and at least one connecting portion, achieving the disconnection of the circuit between the first module 800 and the second module 900.

[0203] Combination Figure 6 and Figure 7 As shown, in some embodiments, the second connecting portion 120 and the fourth connecting portion 220 are both arranged around the periphery of the rotating shaft 310, and the second connecting portion 120 and the fourth connecting portion 220 are symmetrically arranged along the axis of the rotating shaft 310.

[0204] This configuration ensures that the two contact surfaces formed by the second connecting part 120 and the fourth connecting part 220 are symmetrical about the rotating shaft 310. This makes the force between the connecting piece 320 and the two contact surfaces balanced during rotation, avoiding lateral load imbalance, ensuring stable operating torque and uniform wear, and ensuring symmetrical current distribution on the left and right paths.

[0205] Specifically, the radius of the surface of the second connecting part 120 facing the rotating shaft 310 is smaller than the radius of the surface of the first sub-connecting segment 3221 away from the rotating shaft 310; the radius of the surface of the fourth connecting part 220 facing the rotating shaft 310 is smaller than the radius of the surface of the second sub-connecting segment 3222 away from the rotating shaft 310.

[0206] Along the circumference of the pivot 310, there is a second gap 502 between the end of the second connecting portion 120 away from the first intermediate section 130 and the end of the fourth connecting portion 220 near the second intermediate section 230; there is a third gap 503 between the end of the fourth connecting portion 220 away from the second intermediate section 230 and the end of the second connecting portion 120 near the first intermediate section 130.

[0207] In a specific implementation, when the connector 300 is in the first active position, the first sub-connecting segment 3221 is sandwiched between the rotating shaft 310 and the second connecting part 120, and the second sub-connecting segment 3222 is sandwiched between the rotating shaft 310 and the fourth connecting part 220.

[0208] When the connector 300 is in the second active position, one of the first sub-connecting segment 3221 and the connector 300 in the second sub-connecting segment 3222 is located in the second gap 502, and the other is located in the third gap 503.

[0209] It is understandable that, since the radius of the surface of the second connecting part 120 facing the rotating shaft 310 is smaller than the radius of the surface of the first sub-connecting segment 3221 away from the rotating shaft 310, the radius of the motion trajectory of the first sub-connecting segment 3221 when rotating is greater than the radius of the inner side of the second connecting part 120.

[0210] Combination Figure 6 As shown, in a specific implementation, the connecting member 300 can be switched from the second active position to the first active position by rotating the shaft 310. The first sub-connecting segment 3221 rotates to enter between the shaft 310 and the second connecting part 120. The second connecting part 120 is forced to elastically deform, generating an outward force, thereby pressing tightly against the surface of the first sub-connecting segment 3221 on the side away from the shaft 310. Thus, the surface of the second connecting part 120 facing the shaft 310 and the surface of the first sub-connecting segment 3221 on the side away from the shaft 310 can be pressed together, ensuring contact stability. This pressure based on the size difference can create low contact resistance, ensuring the reliability of the electrical connection.

[0211] By rotating the pivot 310, the connector 300 is switched from the first movable position to the second movable position, the first sub-connecting segment 3221 moves to disengage between the pivot 310 and the second connecting part 120, and the second connecting part 120 is able to recover its deformation.

[0212] Similarly, since the radius of the surface of the fourth connecting part 220 facing the rotating shaft 310 is smaller than the radius of the surface of the second sub-connecting segment 3222 away from the rotating shaft 310, the radius of the motion trajectory of the second sub-connecting segment 3222 when rotating is greater than the radius of the inner side of the fourth connecting part 220.

[0213] By rotating the shaft 310, the connector 300 can be switched from the second movable position to the first movable position. The second sub-connecting segment 3222 rotates to enter between the shaft 310 and the fourth connecting portion 220. The fourth connecting portion 220 is forced to elastically deform, generating an outward force, thereby pressing tightly against the surface of the second sub-connecting segment 3222 facing away from the shaft 310. This ensures that the surface of the fourth connecting portion 220 facing the shaft 310 and the surface of the second sub-connecting segment 3222 facing away from the shaft 310 are pressed together, ensuring stable contact. This pressure based on dimensional differences creates low contact resistance, guaranteeing reliable electrical connections.

[0214] By rotating the pivot 310, the connector 300 is switched from the first movable position to the second movable position, the second sub-connecting segment 3222 moves to disengage between the pivot 310 and the fourth connecting part 220, and the fourth connecting part 220 is able to recover its deformation.

[0215] Understandably, the second gap 502 and the four-way gap are two clearance spaces located on the rotation path of the connecting piece 320. They can provide a clear parking position for the connecting piece 320 in the disconnected state. When the connecting piece 320 is in the non-working position, its two ends can be fully accommodated in these gaps, maintaining a safe distance from all live parts.

[0216] Combination Figure 7 As shown, when the connecting piece 320 rotates 90 degrees (or other specific angles), the first sub-connecting segment 3221 can fall into the first gap 501, and the first sub-connecting segment 3221 is away from the second connecting part 120; the second sub-connecting segment 3222 can fall into the second gap 502, and the second sub-connecting segment 3222 is away from the fourth connecting part 220. Thus, the connector 300 can be disconnected from the first conductive member 100 and from the second conductive member 200, thereby achieving the disconnection of the first module 800 and the second module 900.

[0217] Specifically, the electrical connection device provided in this application embodiment can achieve quick connection and disconnection between the first module 800 and the second module 900 through a simple rotation operation.

[0218] It should be noted that when the connector 300 switches between the first and second active positions, the rotation direction of the rotating shaft 310 can be clockwise or counterclockwise.

[0219] Combination Figure 6 and Figure 7 As shown, for example, when the connector 300 switches from the first active position to the second active position, the rotating shaft 310 can rotate counterclockwise, so that the first sub-connecting segment 3221 enters the third gap 503 and the second sub-connecting segment 3222 enters the second gap 502.

[0220] When the connector 300 switches from the second movable position to the first movable position, it can rotate clockwise so that the first sub-connecting segment 3221 is clamped between the rotating shaft 310 and the second connecting part 120, and the second sub-connecting segment 3222 is clamped between the rotating shaft 310 and the fourth connecting part 220.

[0221] In the aforementioned rotation method, the end of the first sub-connecting segment 3221 facing away from the mounting segment 321 can slide into the space between the rotating shaft 310 and the second connecting segment 120 from the junction of the second connecting portion 120 and the first intermediate segment 130. The arc-shaped transition at the junction of the second connecting portion 120 and the first intermediate segment 130 can provide guidance for the first sub-connecting segment 3221, making it easier for the first sub-connecting segment 3221 to enter the space between the rotating shaft 310 and the second connecting segment 120.

[0222] Similarly, the end of the second sub-connecting section 3222 that is away from the mounting section 321 can slide into the space between the rotating shaft 310 and the fourth connecting section 220 from the junction of the fourth connecting section 220 and the second intermediate section 230. The arc-shaped transition at the junction of the fourth connecting section 220 and the second intermediate section 230 can provide guidance for the second sub-connecting section 3222, making it easier for the first sub-connecting section 3221 to enter the space between the rotating shaft 310 and the fourth connecting section 220.

[0223] Combination Figure 9 and Figure 10 As shown, in some embodiments, the second connecting portion 120 has a first extension 121 extending toward the rotating shaft 310, and the fourth connecting portion 220 has a second extension 221 extending toward the rotating shaft 310. A fourth gap 504 is formed between the first extension 121 and the second extension 221 in a direction perpendicular to the arrangement direction of the first conductive member 100 and the second conductive member 200. The connecting piece 320 is sheet-shaped and has a first surface 323 and a second surface 324 disposed opposite to each other.

[0224] In practice, by rotating the shaft 310, the connector 300 can be driven to switch from the second active position to the first active position. During this process, the first surface 323 of the connector 320 swings toward the first extension 121; the second surface 324 of the connector 320 swings toward the second extension 221.

[0225] When the connector 300 is in the first active position, the connecting piece 320 is embedded in the fourth gap 504, and the first surface 323 of the connecting piece 320 abuts against the first extension 121, and the second surface 324 of the connecting piece 320 abuts against the second extension 221.

[0226] By rotating the pivot 310, the connector 300 can be driven to switch from the first active position to the second active position. During this process, the first surface 323 of the connector 320 disengages from the first extension 121 and swings away from the first extension 121; the second surface 324 of the connector 320 disengages from the second extension 221 and swings away from the second extension 221.

[0227] Specifically, in order to optimize conductivity, the first surface 323 and the second surface 324 of the connecting piece 320 can be polished or silver-plated.

[0228] Through the above connection method, the connecting piece 320 can be precisely inserted into the fourth gap 504 formed by the two extension segments. At this time, the first surface 323 of the connecting piece 320 is completely in contact with the side of the first extension segment 121, and the second surface 324 of the connecting piece 320 is completely in contact with the side of the second extension segment 221, forming a large-area planar contact, resulting in low current density, significantly reduced resistance, and reduced energy consumption and heat generation.

[0229] Combination Figures 3 to 5 As shown, in some embodiments, the mounting base 400 includes a first mounting portion 410 and a second mounting portion 420; the first mounting portion 410 and the second mounting portion 420 surround a receiving cavity 401, and a connector 300 is disposed in the receiving cavity 401 and is movably connected to the second mounting portion 420.

[0230] By configuring the mounting base 400 as consisting of a split first mounting part 410 and a second mounting part 420, it is easier to process and install the mounting base 400, and also easier to assemble with the connector 300.

[0231] The shape of the receiving cavity 401 can be consistent with the shape of the rotating shaft 310, providing a receiving space for the rotating shaft 310 while also guiding the rotation of the connector 300.

[0232] The first mounting part 410 may be provided with a first insertion hole 411 that connects the receiving cavity 401 and the outside of the mounting base 400, and the first extension 121 of the first conductive member 100 may be inserted into the first insertion hole 411.

[0233] The second mounting part 420 may be provided with a second insertion hole 421 that connects the receiving cavity 401 and the outside of the mounting base 400, and the second extension 221 of the second conductive member 200 may be inserted into the second insertion hole 421.

[0234] Specifically, the first conductive element 100 is connected to the first mounting portion 410, a portion of the first conductive element 100 extends into the receiving cavity 401 for connection with the connector 300; a portion of the first conductive element 100 extends to the outside of the receiving cavity 401 for connection with the first module 800.

[0235] The second conductive element 200 is connected to the second mounting portion 420. A portion of the second conductive element 200 extends into the receiving cavity 401 for connection with the connector 300; a portion of the second conductive element 200 extends to the outside of the receiving cavity 401 for connection with the second module 900.

[0236] It should be noted that the mounting base 400 and the rotating shaft 310 are both insulating components. The first conductive component 100, the second conductive component 200, and the connector 300 are all conductive metal components.

[0237] For example, the first mounting part 410 and the second mounting part 420 can be connected together by crimping, snap-fitting or screw fixing.

[0238] The arrangement direction of the first mounting part 410 and the second mounting part 420 can be consistent with the direction of module stacking. The first mounting part 410 is close to the first module 800, and the first conductive member 100 mounted on the first mounting part 410 can be easily connected to the first module 800. The second mounting part 420 is close to the second module 900, and the second conductive member 200 mounted on the second mounting part 420 can be easily connected to the second module 900.

[0239] In some embodiments, the electrical connection device further includes a handheld part 600, which includes a handle 610 and a connecting shaft 620 connected to each other; the handle 610 is located outside the receiving cavity 401, the rotating shaft 310 is rotatably connected to the second mounting part 420, and a portion of the connecting shaft 620 extends into the receiving cavity 401 and is coaxially connected to the rotating shaft 310.

[0240] The handheld component 600 can provide functional modules specifically designed for manual operation. By providing the handheld component 600, it is ensured that the operator can easily and safely access the handle 610 without touching any live parts inside the device.

[0241] The connecting shaft 620, as an extension of the handheld component 600, is directly inserted into the receiving cavity 401 and rigidly and coaxially connected to the internal rotating shaft 310. This ensures that the rotational force applied by the operator to the handle 610 is precisely transmitted to the rotating shaft 310.

[0242] Specifically, the handle 610 is also located outside the first module 800 and the second module 900, so that the operator can operate the electrical connection device without disassembling the stacked modules to realize the connection and disconnection between the membrane modules.

[0243] The following is a detailed description of an embodiment in which the connector 300 and the mounting base 400 are slidably connected:

[0244] Combination Figure 11 As shown, in some embodiments, when the conductive elements include a first conductive element 100 and a second conductive element 200, the connector 300 is located on the same side of the first conductive element 100 and the second conductive element 200 in a direction perpendicular to the arrangement direction of the first conductive element 100 and the second conductive element 200. The connector 300 is used to translate relative to the mounting base 400 to move closer to or further away from the first conductive element 100 and the second conductive element 200.

[0245] Understandably, since the connector 300 is located on one side of the first conductive element 100 and the second conductive element 200, the connector 300 needs to make contact with or move away from the two conductive elements simultaneously through lateral translation, providing a physical possibility for the translation scheme. The translation of the connector 300 relative to the mounting base 400 can change the vertical distance between the connector and the two fixed conductive elements.

[0246] For example, the connector 300 can achieve translational movement relative to the mounting base 400 through mechanisms such as slide rails, sliders, or guide grooves.

[0247] In the specific implementation process, when the connector 300 switches from the first active position to the second active position, the connector 300 moves away from the first conductive element 100 and the second conductive element 200, so as to disengage from the first conductive element 100 and the second conductive element 200.

[0248] Through a simple linear backward movement, the connector 300, as a whole, simultaneously separates from the second connecting portion 120 of the first conductive element 100 and the fourth connecting portion 220 of the second conductive element 200. This separation method, a vertical pull-away, can simultaneously form a uniform disconnection gap at the contact point of the two conductive elements, which is beneficial for rapid arc extinguishing and improved insulation strength.

[0249] When the connector 300 switches from the second active position to the first active position, the connector 300 approaches the first conductive element 100 and the second conductive element 200 to connect the first conductive element 100 and the second conductive element 200.

[0250] Through a linear forward motion, the connector 300, as a whole, simultaneously presses against the contact surfaces of two fixed conductive components. This contact method helps to achieve large-area surface contact, and the contact pressure can be applied directly and evenly by a translation mechanism (such as a spring or a threaded propulsion structure), thereby obtaining a more stable and low-resistance connection.

[0251] Combination Figure 1 and Figure 2 As shown, a second aspect of this application provides an energy storage box, including a first module 800, a second module 900, and an electrical connection device provided in any of the above embodiments. The first module 800 and the second module 900 are stacked; the electrical connection device is disposed between the first module 800 and the second module 900 along the stacking direction of the first module 800 and the second module 900. The first module 800 has a first connector, which is connected to a first conductive element 100 of the electrical connection device; the second module 900 has a second connector, which is connected to a second conductive element 200 of the electrical connection device.

[0252] The electrical connection device has been described in detail in the above embodiments and will not be repeated here.

[0253] By installing the aforementioned electrical connection device inside the energy storage box, operators can safely and conveniently perform power-on checks, maintenance isolation, or emergency power-off at the module level without disassembling the stacked battery modules or using specific tools, greatly improving maintenance convenience.

[0254] It should be noted that energy storage boxes include, but are not limited to, residential energy storage batteries and industrial and commercial energy storage units. Examples include battery packs for electric vehicles, electric ships, and electric construction machinery.

[0255] Finally, it should be noted that those skilled in the art, upon considering the specification and practicing the application disclosed herein, will readily conceive of other embodiments of the present application. The embodiments of this application are intended to cover any variations, uses, or adaptations of the embodiments of this application that follow the general principles of the embodiments of this application and include common knowledge or customary technical means in the art not disclosed in the embodiments of this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of this application are indicated by the following claims.

[0256] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments of this application is limited only by the appended claims.

Claims

1. An electrical connection device, characterized in that, include: Mounting base (400); At least two conductive elements are provided at intervals on the mounting base (400), and the at least two conductive elements are used to connect different modules respectively; A connector (300) is movably connected to the mounting base (400). When the connector (300) is in a first active position, it connects at least two of the conductive elements to connect at least two of the modules. When the connector (300) is in the second active position, it is disconnected from at least one of the conductive elements to break the connection between at least two of the modules.

2. The electrical connection device according to claim 1, characterized in that, The conductive component includes a first conductive component (100) and a second conductive component (200), wherein the first conductive component is used to connect to the first module (800) and the second conductive component (200) is used to connect to the second module (900); The first conductive element (100) and the second conductive element (200) are spaced apart on opposite sides of the connector (300); The connector (300) includes a rotating shaft (310) and a connecting piece (320). The connecting piece (320) is connected to the rotating shaft (310). The rotating shaft (310) is rotatably connected to the mounting base (400) to drive the connecting piece (320) to rotate relative to the mounting base (400). The connecting piece (320) is used to connect the first conductive element (100) and the second conductive element (200).

3. The electrical connection device according to claim 2, characterized in that, The connecting piece (320) includes a mounting section (321) and a connecting section (322) that are connected to each other; The mounting section (321) is connected to the rotating shaft (310), and the connecting section (322) is connected to the end of the mounting section (321); When the connector (300) is in the first active position, the connecting segment (322) connects the first conductive element (100) and the second conductive element (200); when the connector (300) is in the second active position, the connecting segment (322) is disconnected from at least one of the first conductive element (100) and the second conductive element (200).

4. The electrical connection device according to claim 3, characterized in that, The connecting segment (322) includes a first sub-connecting segment (3221) and a second sub-connecting segment (3222), the first sub-connecting segment (3221) and the second sub-connecting segment (3222) being connected to both ends of the mounting segment (321); When the connector (300) is in the first active position, the first sub-connecting segment (3221) is connected to the first conductive element (100), and the second sub-connecting segment (3222) is connected to the second conductive element (200); When the connector (300) is in the second active position, the first sub-connecting segment (3221) is disconnected from the first conductive element (100), and / or the second sub-connecting segment (3222) is disconnected from the second conductive element (200).

5. The electrical connection device according to claim 4, characterized in that, The first sub-connecting segment (3221) is wound around the side wall of the rotating shaft (310), and the second sub-connecting segment (3222) is wound around the side wall of the rotating shaft (310). The first sub-connecting segment (3221) and the second sub-connecting segment (3222) are symmetrically arranged along the axis of the rotating shaft (310). One of the first sub-connecting segment (3221) and the second sub-connecting segment (3222) is opposite to one end of the mounting segment (321) and toward the other end of the mounting segment (321).

6. The electrical connection device according to claim 5, characterized in that, The rotating shaft (310) has a slot (311) that extends radially along the rotating shaft (310), and the mounting section (321) is inserted into the slot (311).

7. The electrical connection device according to claim 5 or 6, characterized in that, The first conductive element (100) includes a first connecting portion (110) and a second connecting portion (120) connected to each other. The first connecting portion (110) is disposed on the outside of the mounting base (400) and is used to connect with the first module (800). The second connecting portion (120) is disposed on the inside of the mounting base (400) and is used to connect with the connector (300). The second conductive element (200) includes a third connecting portion (210) and a fourth connecting portion (220) connected to each other. The third connecting portion (210) is disposed on the outside of the mounting base (400) and is used to connect with the second module (900). The fourth connecting portion (220) is disposed on the inside of the mounting base (400) and is used to connect with the connector (300).

8. The electrical connection device according to claim 7, characterized in that, The first conductive element (100) further includes a first intermediate section (130), which connects the first connecting portion (110) and the second connecting portion (120), and is connected to the mounting base (400); The second conductive element (200) further includes a second intermediate section (230), which connects the third connecting part (210) and the fourth connecting part (220) and is connected to the mounting base (400).

9. The electrical connection device according to claim 8, characterized in that, The second connecting part (120) and the fourth connecting part (220) are both arranged around the circumference of the rotating shaft (310). Along the circumference of the rotating shaft (310), the end of the second connecting part (120) facing away from the first intermediate section (130) and the end of the fourth connecting part (220) facing away from the second intermediate section (230) are arranged facing each other and have a first gap (501). Along the arrangement direction of the first conductive element (100) and the second conductive element (200), the size of the first gap (501) is smaller than the size of the connecting segment (322); When the connector (300) is in the first active position, the connecting segment (322) corresponds to the first gap (501), a portion of the connecting segment (322) abuts against the side of the second connecting part (120) facing the rotating shaft (310), and a portion of the connecting segment (322) abuts against the side of the fourth connecting part (220) facing the rotating shaft (310); When the connector (300) is in the second active position, the connecting segment (322) is located between the rotating shaft (310) and the second connecting part (120), or the connecting segment (322) is located between the rotating shaft (310) and the fourth connecting part (220); or, The second connecting part (120) and the fourth connecting part (220) are both arranged around the circumference of the rotating shaft (310), and the second connecting part (120) and the fourth connecting part (220) are symmetrically arranged along the axis of the rotating shaft (310); The radius of the surface of the second connecting part (120) facing the rotating shaft (310) is smaller than the radius of the surface of the first sub-connecting segment (3221) away from the rotating shaft (310); the radius of the surface of the fourth connecting part (220) facing the rotating shaft (310) is smaller than the radius of the surface of the second sub-connecting segment (3222) away from the rotating shaft (310); Along the circumference of the pivot (310), there is a second gap (502) between the end of the second connecting part (120) away from the first intermediate section (130) and the end of the fourth connecting part (220) near the second intermediate section (230), and there is a third gap (503) between the end of the fourth connecting part (220) away from the second intermediate section (230) and the end of the second connecting part (120) near the first intermediate section (130); When the connector (300) is in the first active position, the first sub-connecting segment (3221) is sandwiched between the rotating shaft (310) and the second connecting part (120), and the second sub-connecting segment (3222) is sandwiched between the rotating shaft (310) and the fourth connecting part (220); When the connector (300) is in the second active position, one of the first sub-connecting segment (3221) and the second sub-connecting segment (3222) is located in the second gap (502), and the other is located in the third gap (503); or, The second connecting portion (120) has a first extension section (121) extending toward the rotating shaft (310), and the fourth connecting portion (220) has a second extension section (221) extending toward the rotating shaft (310); A fourth gap (504) is provided between the first extension segment (121) and the second extension segment (221) in a direction perpendicular to the arrangement direction of the first conductive element (100) and the second conductive element (200). The connecting piece (320) has a first surface (323) and a second surface (324) disposed opposite to each other; When the connector (300) is in the first active position, the connecting piece (320) is embedded in the fourth gap (504), and the first surface (323) of the connecting piece (320) abuts against the first extension (121), and the second surface (324) of the connecting piece (320) abuts against the second extension (221). When the connector (300) is in the second active position, part of the connecting piece (320) disengages from the fourth gap (504), the first surface (323) of the connecting piece (320) disengages from the first extension (121), and the second surface (324) of the connecting piece (320) disengages from the second extension (221).

10. The electrical connection device according to any one of claims 2 to 6, characterized in that, The mounting base (400) includes a first mounting portion (410) and a second mounting portion (420); The first mounting part (410) and the second mounting part (420) surround a receiving cavity (401), and the connector (300) is disposed in the receiving cavity (401). The connector (300) is movably connected to the second mounting part (420). The first conductive element (100) is connected to the first mounting portion (410), and a portion of the first conductive element (100) extends into the receiving cavity (401) for connection with the connector (300); a portion of the first conductive element (100) extends to the outside of the receiving cavity (401) for connection with the first module (800). The second conductive element (200) is connected to the second mounting portion (420), and a portion of the second conductive element (200) extends into the receiving cavity (401) for connection with the connector (300); a portion of the second conductive element (200) extends to the outside of the receiving cavity (401) for connection with the second module (900).

11. The electrical connection device according to claim 10, characterized in that, It also includes a handheld component (600), which includes a handle (610) and a connecting shaft (620) connected to it; The handle (610) is located outside the receiving cavity (401), the rotating shaft (310) is rotatably connected to the second mounting part (420), and part of the connecting shaft (620) extends into the receiving cavity (401) and is coaxially connected with the rotating shaft (310).

12. The electrical connection device according to claim 1, characterized in that, The conductive component includes a first conductive component (100) and a second conductive component (200), wherein the first conductive component is used to connect to the first module (800) and the second conductive component (200) is used to connect to the second module (900); Along a direction perpendicular to the arrangement direction of the first conductive element (100) and the second conductive element (200), the connector (300) is located on the same side of the first conductive element (100) and the second conductive element (200); The connector (300) is used to translate relative to the mounting base (400) to move closer to or further away from the first conductive element (100) and the second conductive element (200); When the connector (300) switches from the first active position to the second active position, the connector (300) moves away from the first conductive element (100) and the second conductive element (200) to disengage from the first conductive element (100) and the second conductive element (200); When the connector (300) switches from the second active position to the first active position, the connector (300) approaches the first conductive element (100) and the second conductive element (200) to connect the first conductive element (100) and the second conductive element (200).

13. An energy storage box, characterized in that, It includes a first module (800), a second module (900), and an electrical connection device as described in any one of claims 1-12; The first module (800) and the second module (900) are stacked. Along the stacking direction of the first module (800) and the second module (900), the electrical connection device is disposed between the first module (800) and the second module (900); The first module (800) has a first connector, which is connected to one of the conductive elements of the electrical connection device; The second module (900) has a second connector that is connected to another conductive element of the electrical connection device.

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