Electrical connection device

Abstract

The utility model discloses an electric connection device. Belongs to the technical field of batteries and comprises a clamp assembly, the clamp assembly comprises a base, an upper cover, a guide part and a plurality of hasps, the base is provided with a bearing surface, the upper cover is provided with a pressing surface, the hasps have a locking state and an unlocking state, and when each hasp is in the locking state, the distance between the pressing surface and the bearing surface is smaller than a preset distance; the pressing surface and the bearing surface can jointly clamp two external high-voltage wire harnesses, so that the two external high-voltage wire harnesses can be reliably and electrically connected at the pressing surface and the bearing surface, and when each hasp is in an unlocking state, the distance between the pressing surface and the bearing surface can be adjusted, so that the external high-voltage wire harnesses can be quickly disassembled and assembled between the bearing surface and the pressing surface, and the assembling efficiency of the two external high-voltage wire harnesses is improved. The electric connection device is simple in structure, can realize quick connection and separation of the two external high-voltage wire harnesses by switching the state of the hasp, is convenient to operate, and has relatively good safety.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an electrical connection device. Background Art

[0002] Battery systems usually require charge and discharge tests to simulate the charging and discharging processes of the battery in actual use, so as to measure and analyze the storage and release capabilities of the battery system.

[0003] In related technologies, the high-voltage wiring harness of the charging and discharging equipment and the high-voltage wiring harness of the battery system are usually connected by bolts. When replacing different battery systems for charging and discharging tests, it is necessary to frequently disassemble and assemble the bolts and connect the wires. The steps are numerous and the operation is inconvenient. Moreover, since it takes a long time to disassemble and assemble the bolts, when an accident such as a fire occurs in the battery system, it is difficult to quickly disconnect the high-voltage wiring harness of the charging and discharging equipment and the high-voltage wiring harness of the battery system, resulting in increased safety risks. Utility Model Content

[0004] The present invention aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present invention provides an electrical connection device that can realize the rapid installation and removal of the high-voltage wiring harness of the battery system.

[0005] According to an embodiment of the utility model, the electrical connection device includes: a clamp assembly, which includes: a base, an upper cover, a guide member and a plurality of buckles, the base has a bearing surface; the upper cover has a pressing surface, and the pressing surface and the bearing surface are arranged opposite to each other in a first direction; the guide member is fixedly connected to the base, and in the first direction, the upper cover is movably connected to the guide member; each of the buckles is respectively connected to the base and the upper cover, and the buckles have a locked state and an unlocked state, when each of the buckles is in the locked state, the distance between the pressing surface and the bearing surface is less than a preset distance, and when each of the buckles is in the unlocked state, the distance between the pressing surface and the bearing surface is adjustable.

[0006] According to the electrical connection device of the embodiment of the present invention, its buckle has a locked state and an unlocked state. When each buckle is in the locked state, the distance between the pressing surface and the bearing surface is less than the preset distance. The pressing surface and the bearing surface can jointly clamp the two external high-voltage wire harnesses to achieve reliable electrical connection between the pressing surface and the bearing surface. When each buckle is in the unlocked state, the distance between the pressing surface and the bearing surface can be adjusted to facilitate rapid disassembly and assembly of the external high-voltage wire harness between the bearing surface and the pressing surface. The electrical connection device has a simple structure and can achieve rapid connection and separation of the two external high-voltage wire harnesses by switching the state of the buckle. It is easy to operate and has good safety.

[0007] According to some embodiments of the present invention, the base includes: a base body and a lower insulating pad, the guide member is fixedly connected to the base body; the lower insulating pad is detachably connected to the base body, the guide member is passed through the lower insulating pad, and the lower insulating pad has the bearing surface.

[0008] According to some embodiments of the present invention, the upper cover includes: an upper cover body and an upper insulating pad, the guide piece is passed through the upper cover body; the upper insulating pad is detachably connected to the upper cover body, the guide piece is passed through the upper insulating pad, and the upper insulating pad has the pressing surface.

[0009] According to some embodiments of the present invention, the bearing surface has a first conductor limiting groove, the pressing surface has a second conductor limiting groove, and the first conductor limiting groove and the second conductor limiting groove are at least partially arranged opposite to each other in the first direction.

[0010] According to some embodiments of the present invention, the clamp assembly also includes: a limit plate and a locking adjustment member, the limit plate is arranged on the side of the upper cover away from the base, and the limit plate is fixedly connected to the guide member; at least a portion of the locking adjustment member is arranged between the limit plate and the upper cover, and the locking adjustment member is used to adjust the distance between the limit plate and the upper cover.

[0011] According to some embodiments of the present invention, the limiting plate is provided with a threaded hole, the projection of the threaded hole in the first direction is located inside the upper cover, and the locking adjustment member is passed through the threaded hole and threadably engaged with the threaded hole.

[0012] According to some embodiments of the present invention, the electrical connection device also includes: a fuse assembly, the fuse assembly including: an insulating seat, a current protector and a conductive member, the insulating seat having a first mounting position and a second mounting position; the current protector having a first interface end and a second interface end, the first interface end being suitable for being electrically connected to an external wiring harness at the first mounting position, the second interface end being electrically connected to one end of the conductive member at the second mounting position, and the other end of the conductive member being placed on the supporting surface; wherein, the first interface end and the external wiring harness are both detachably connected to the first mounting position, and the second interface end and one end of the conductive member are both detachably connected to the second mounting position.

[0013] According to some embodiments of the present utility model, the electrical connection device also includes: a box body and a box door, the box body has a receiving groove and a first wiring hole and a second wiring hole connected to the receiving groove, the clamp assembly and the safety assembly are both arranged in the receiving groove; the box door cover is arranged at the notch of the receiving groove.

[0014] According to some embodiments of the present invention, the box body has a plurality of the accommodating slots and a plurality of the first wiring holes and a plurality of the second wiring holes corresponding one-to-one to the plurality of the accommodating slots, and the clamp assembly and the safety assembly are provided in each of the accommodating slots.

[0015] According to some embodiments of the present invention, the electrical connection device also includes: a temperature sensor and a display, the temperature sensor is used to detect the temperature value of the current protector; the display is arranged on the box body or the box door, the display is communicatively connected to the temperature sensor, and the display is used to display the temperature value measured by the temperature sensor.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a clamp assembly and a conductive member according to an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of a clamp assembly, a fuse assembly, a first external high-voltage wiring harness, and a second external high-voltage wiring harness according to an embodiment of the present utility model;

[0019] Figure 3 is a perspective view of an electrical connection device, a first external high-voltage wire harness, and a second external high-voltage wire harness according to an embodiment of the present utility model;

[0020] Figure 4 is a top view of an electrical connection device, a first external high-voltage wire harness, and a second external high-voltage wire harness according to an embodiment of the present utility model;

[0021] Figure 5 It is a front view of the electrical connection device according to an embodiment of the present utility model.

[0022] Reference numerals:

[0023] Base 1; base body 11; first mounting groove 111; lower insulating pad 12; bearing surface 121; first conductor limiting groove 1211;

[0024] Upper cover 2; upper cover body 21; second mounting groove 211; upper insulating pad 22; pressing surface 221;

[0025] Guide member 3; buckle 4; adjustment member 41; bracket 42; connecting member 43; fixing buckle 44; limit plate 5; locking adjustment member 6; handle 61; stud 62; nut 7;

[0026] Clamp assembly 10;

[0027] Fuse assembly 20; insulating seat 201; first mounting position 2011; second mounting position 2012; current protector 202; first interface end 2021; second interface end 2022; conductive member 203; first fastener 204; second fastener 205;

[0028] Box body 30; receiving slot 301; first wiring hole 302; second wiring hole 303;

[0029] Box door 40; temperature sensor 50; display 60;

[0030] Electrical connection device 100; first external high-voltage wire harness 200; first connection end 2001; battery system high-voltage wire harness 200a; battery connection end 200a1; second external high-voltage wire harness 300; second connection end 3001; charging and discharging equipment high-voltage wire harness 300a; equipment connection end 300a1. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or mutual communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0035] The following combination Figure 1-Figure 5 The electrical connection device 100 according to an embodiment of the present invention is described in detail.

[0036] Reference Figure 1 and Figure 2 As shown, the electrical connection device 100 according to an embodiment of the present invention includes: a clamp assembly 10, the clamp assembly 10 includes: a base 1, an upper cover 2, a guide member 3 and a plurality of buckles 4, the base 1 has a bearing surface 121, the upper cover 2 has a pressing surface 221, the pressing surface 221 and the bearing surface 121 are arranged opposite to each other in a first direction, the guide member 3 is fixedly connected to the base 1, and in the first direction, the upper cover 2 is movably connected to the guide member 3, each buckle 4 is respectively connected to the base 1 and the upper cover 2, and the buckle 4 has a locked state and an unlocked state. When each buckle 4 is in the locked state, the distance between the pressing surface 221 and the bearing surface 121 is less than the preset distance, and when each buckle 4 is in the unlocked state, the distance between the pressing surface 221 and the bearing surface 121 is adjustable.

[0037] Among them, the electrical connection device 100 is suitable for connecting two external high-voltage wire harnesses, and the two external high-voltage wire harnesses can be a first external high-voltage wire harness 200 and a second external high-voltage wire harness 300 respectively. The first external high-voltage wire harness 200 can be a battery system high-voltage wire harness 200a, and the second external high-voltage wire harness 300 can be a charging and discharging equipment high-voltage wire harness 300a. The second external high-voltage wire harness 300 can also be a charging and discharging equipment high-voltage wire harness 300a, a current protector 202 and a conductive member 203 connected in series. That is, the charging and discharging equipment high-voltage wire harness 300a and the battery system high-voltage wire harness 200a can be directly connected or indirectly connected. The first external high-voltage wire harness 200 can have a first connection end 2001, and the first connection end 2001 can be a battery connection end 200a of the battery system high-voltage wire harness 200a. 00a1, the second external high-voltage wiring harness 300 may have a second connection end 3001. When the second external high-voltage wiring harness 300 is a high-voltage wiring harness 300a for charging and discharging equipment, the second connection end 3001 may be a device connection end 300a1 of the high-voltage wiring harness 300a for charging and discharging equipment. When the second external high-voltage wiring harness 300 is a high-voltage wiring harness 300a for charging and discharging equipment, a current protector 202, and a conductive member 203 connected in series, the second connection end 3001 may be located on the conductive member 203. The first connection end 2001 and the second connection end 3001 are in contact with each other to realize electrical connection between the battery system and the charging and discharging equipment, thereby enabling charge and discharge testing of the battery system. The preset distance may be the total thickness of the first connection end 2001 and the second connection end 3001 in the first direction. The first direction may be Figure 1 Middle and upper and lower directions.

[0038] It is understandable that when performing a charge and discharge test on the battery system, the buckle 4 can be adjusted to the unlocked state to adjust the distance between the pressing surface 221 and the bearing surface 121. The distance between the pressing surface 221 and the bearing surface 121 can be adjusted to be greater than the preset distance, so that the first connection end 2001 of the first external high-voltage wire harness 200 and the second connection end 3001 of the second external high-voltage wire harness 300 are installed between the pressing surface 221 and the bearing surface 121, and at least a portion of the first connection end 2001 and at least a portion of the second connection end 3001 are in the gap between the pressing surface 221 and the bearing surface 121. The projections in the first direction coincide, that is, the first connection end 2001 and the second connection end 3001 are at least partially overlapped in the first direction, and then the buckle 4 is adjusted to a locked state so that the distance between the pressing surface 221 and the bearing surface 121 is less than the preset distance. Since the pressing surface 221 and the bearing surface 121 are arranged relative to each other in the first direction, the pressing surface 221 and the bearing surface 121 can jointly clamp the first connection end 2001 and the second connection end 3001, and keep the first connection end 2001 and the second connection end 3001 in stable contact.

[0039] During the charge and discharge test of the battery system, when an accident such as a fire occurs in the battery system, the buckle 4 can be adjusted to the unlocked state, so that the distance between the clamping surface 221 and the bearing surface 121 is adjustable to release the clamping, thereby facilitating the extraction of the first external high-voltage wiring harness 200 located between the clamping surface 221 and the bearing surface 121, thereby achieving the separation of the first external high-voltage wiring harness 200 and the second external high-voltage wiring harness 300, and quickly disconnecting the charging and discharging equipment from the battery system, thereby helping to reduce safety risks.

[0040] It should be noted that the buckle 4 may include an adjusting member 41, a bracket 42, a connecting member 43, and a fixing buckle 44. The bracket 42 is fixedly connected to the upper cover 2, the adjusting member 41 is rotatably connected to the bracket 42, the connecting member 43 is fixedly connected to the adjusting member 41, and the fixing buckle 44 is connected to the base 1. When the adjusting member 41 rotates, it can drive the connecting member 43 to engage or disengage the hook portion on one side of the fixing buckle 44 to lock or unlock, thereby quickly placing the buckle 4 in a locked state or an unlocked state. Among them, the distance between the lower end of the connecting member 43 and the adjusting member 41 is adjustable. By adjusting the distance between the lower end of the connecting member 43 and the adjusting member 41, the size of the preset distance can be adjusted, so that the electrical connection device 100 can be connected to external high-voltage wiring harnesses of different specifications, thereby facilitating the versatility of the electrical connection device 100.

[0041] According to the electrical connection device 100 of the embodiment of the present invention, its buckle 4 has a locked state and an unlocked state. When each buckle 4 is in the locked state, the distance between the clamping surface 221 and the bearing surface 121 is less than the preset distance. The clamping surface 221 and the bearing surface 121 can jointly clamp the two external high-voltage wire harnesses to achieve reliable electrical connection between the clamping surface 221 and the bearing surface 121. When each buckle 4 is in the unlocked state, the distance between the clamping surface 221 and the bearing surface 121 can be adjusted to facilitate rapid disassembly and assembly of the external high-voltage wire harness between the bearing surface 121 and the clamping surface 221. The electrical connection device 100 has a simple structure and can achieve rapid connection and separation of the two external high-voltage wire harnesses by switching the state of the buckle 4. It is easy to operate and has good safety.

[0042] In some embodiments of the present invention, referring to Figure 1 and Figure 2 As shown, the base 1 includes: a base body 11 and a lower insulating pad 12, the guide member 3 is fixedly connected to the base body 11, the lower insulating pad 12 is detachably connected to the base body 11, the guide member 3 is passed through the lower insulating pad 12, and the lower insulating pad 12 has a bearing surface 121, wherein the guide member 3 can be constructed as a prism, cylinder or other structure.

[0043] It can be understood that the lower insulating pad 12 is detachably connected to the base body 11. When the lower insulating pad 12 is damaged, the lower insulating pad 12 can be removed from the base body 11, and a new lower insulating pad 12 can be installed on the base body 11 to replace the lower insulating pad 12, thereby realizing maintenance of the electrical connection device 100. The guide member 3 is passed through the lower insulating pad 12 to limit the insulating pad to avoid shaking of the lower insulating pad 12, which is beneficial to improving the stability and reliability of the connection between the lower insulating pad 12 and the base body 11.

[0044] Reference Figure 2 As shown, the base body 11 has a first mounting groove 111, which can be a rectangular groove, and the lower insulating pad 12 can be a rectangular block. At least part of the lower insulating pad 12 can be located in the first mounting groove 111. In the second direction, the side walls at both ends of the lower insulating pad 12 are suitable for abutting against the two inner side walls of the first mounting groove 111 in the second direction to prevent the lower insulating pad 12 from moving in the second direction. In the third direction, the side walls at both ends of the lower insulating pad 12 are suitable for abutting against the two inner side walls of the first mounting groove 111 in the third direction to prevent the lower insulating pad 12 from moving in the third direction, which is conducive to maintaining a stable connection between the lower insulating pad 12 and the base body 11. The second direction can be Figure 2 The front-back direction, the third direction can be Figure 2 Center left and right direction.

[0045] In some embodiments of the present invention, referring to Figure 1 and Figure 2 As shown, the upper cover 2 includes: an upper cover body 21 and an upper insulating pad 22, the guide member 3 is passed through the upper cover body 21, the upper insulating pad 22 is detachably connected to the upper cover body 21, the guide member 3 is passed through the upper insulating pad 22, and the upper insulating pad 22 has a pressing surface 221.

[0046] It can be understood that the upper insulating pad 22 is detachably connected to the upper cover body 21 to facilitate replacement of the upper insulating pad 22. When the upper insulating pad 22 is damaged, the electrical connection device 100 can be maintained by replacing the upper insulating pad 22. The guide member 3 is passed through the upper cover body 21 and the upper insulating pad 22 to guide and limit the upper cover body 21 and the upper insulating pad 22 so that the upper cover body 21 and the upper insulating pad 22 move along the first direction and avoid shaking of the upper cover body 21 and the lower insulating pad 12, which is beneficial to improving the stability and reliability of the connection between the lower insulating pad 12 and the base body 11.

[0047] Reference Figure 2As shown, the upper cover body 21 has a second mounting groove 211, the second mounting groove 211 can be a "U"-shaped groove, the upper insulating pad 22 can be a rectangular block, at least part of the upper insulating pad 22 can be located in the second mounting groove 211, and in the third direction, the side walls at both ends of the upper insulating pad 22 are suitable for abutting against the inner side walls of the second mounting groove 211 to prevent the upper insulating pad 22 from moving in the third direction, thereby helping to improve stability and reliability.

[0048] In some embodiments of the present invention, the material of the upper insulating pad 22 and the lower insulating pad 12 can be resin, and the first external high-voltage wire harness 200 and the second external high-voltage wire harness 300 are clamped together by the compression surface 221 of the upper insulating pad 22 and the bearing surface 121 of the lower insulating pad 12. An insulating layer can be formed on the outside of the connection between the first external high-voltage wire harness 200 and the second external high-voltage wire harness 300, and there is no need to wrap insulating glue around the connection between the first external high-voltage wire harness 200 and the second external high-voltage wire harness 300 for insulation, which is conducive to reducing the use of consumables and reducing testing costs.

[0049] In some embodiments of the present invention, referring to Figure 1 and Figure 2 As shown, there can be multiple guide members 3, and the multiple guide members 3 can jointly guide and limit the upper cover 2 so that the upper cover 2 moves along the first direction and prevent the upper cover 2 from rotating. At the same time, the multiple guide members 3 can also jointly guide and limit the lower insulating pad 12. When the lower insulating pad 12 is installed on the base body 11, the lower insulating pad 12 can be moved along the first direction to facilitate the secure placement of the lower insulating pad 12 in a preset position, and the multiple guide members 3 can also prevent the lower insulating pad 12 from rotating.

[0050] In some embodiments of the present invention, referring to Figure 2 As shown, the bearing surface 121 has a first conductor limiting groove 1211, and the pressing surface 221 has a second conductor limiting groove. The first conductor limiting groove 1211 and the second conductor limiting groove are at least partially arranged opposite to each other in the first direction, wherein the first conductor limiting groove 1211 can be used to guide and limit the second connection end 3001 of the second external high-voltage wiring harness 300, and the second conductor limiting groove can be used to guide and limit the first connection end 2001 of the first external high-voltage wiring harness 200.

[0051] It can be understood that the first conductor limiting groove 1211 and the second conductor limiting groove are at least partially arranged relative to each other in the first direction. After the second connection end 3001 of the second external wiring harness 300 is inserted into the first conductor limiting groove 1211 and the first connection end 2001 of the first external high-voltage wiring harness 200 is inserted into the second conductor limiting groove, at least a portion of the second connection end 3001 in the first conductor limiting groove 1211 can be arranged relative to at least a portion of the first connection end 2001 in the second conductor limiting groove. When the buckle 4 is in a locked state, it is beneficial for the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200 to maintain a reliable connection.

[0052] Reference Figure 2 As shown, the first conductor limiting groove 1211 and the second conductor limiting groove can both be open grooves with a "U"-shaped cross-section. The rear side wall of the first conductor limiting groove 1211 is suitable for abutting against the second connection end 3001 of the second external high-voltage wiring harness 300 to achieve positioning of the second connection end 3001, and the front side wall of the second conductor limiting groove is suitable for abutting against the first connection end 2001 of the first external high-voltage wiring harness 200 to achieve positioning of the first connection end 2001, so as to facilitate the installation of the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200 to a preset position. Through the positioning of the second connection end 3001 by the first conductor limiting groove 1211 and the positioning of the first connection end 2001 by the second conductor limiting groove, the first connection end 2001 and the second connection end 3001 can be made to face each other in the first direction, and the first connection end 2001 and the second connection end 3001 can be prevented from moving, which is beneficial to reducing the risk of accidental short circuit of the wiring harness.

[0053] In some embodiments of the present invention, referring to Figure 1 and Figure 2 As shown, the clamp assembly 10 also includes: a limit plate 5 and a locking adjustment member 6, the limit plate 5 is arranged on the side of the upper cover 2 away from the base 1, the limit plate 5 is fixedly connected to the guide member 3, at least part of the locking adjustment member 6 is arranged between the limit plate 5 and the upper cover 2, and the locking adjustment member 6 is used to adjust the distance between the limit plate 5 and the upper cover 2 to adjust the distance between the pressing surface 221 and the bearing surface 121.

[0054] It can be understood that the limit plate 5 is fixedly connected to the guide member 3, the guide member 3 is fixedly connected to the base body 11, the position of the limit plate 5 relative to the base 1 is fixed, and in the first direction, the distance between the limit plate 5 and the bearing surface 121 of the base 1 is fixed. By locking and adjusting the distance between the limit plate 5 and the upper cover 2, the distance between the pressing surface 221 of the upper cover 2 and the bearing surface 121 of the base 1 can be adjusted.

[0055] When the battery system is being charged and discharged and the buckle 4 is in a locked state, the clamping surface 221 and the bearing surface 121 can jointly clamp the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200 to achieve one-time locking. The locking adjustment member 6 can be used to increase the distance between the limit plate 5 and the upper cover 2 to reduce the distance between the clamping surface 221 and the bearing surface 121, thereby increasing the clamping force of the clamping surface 221 and the bearing surface 121 on the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200, thereby achieving secondary locking of the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200, which is beneficial to improving the stability and reliability of the connection between the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200, and avoiding the separation of the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200 during the charge and discharge test of the battery system, so as to facilitate the smooth progress of the charge and discharge test of the battery system.

[0056] Reference Figure 1 and Figure 2 As shown, the upper end of the guide member 3 may have a thread, and the upper end of the limiting plate 5 may cooperate with the upper end thread of the guide member 3 through the limiting nut 7 to limit the limiting plate 5.

[0057] In some embodiments of the present invention, the limiting plate 5 is provided with a threaded hole, the projection of the threaded hole in the first direction is located inside the upper cover 2, the locking adjustment member 6 is passed through the threaded hole and cooperates with the thread of the threaded hole. By twisting the locking adjustment member 6, the locking adjustment member 6 can be moved along the axial direction of the threaded hole. The movement of the locking adjustment member 6 can drive the upper cover 2 to move, thereby adjusting the distance between the limiting plate 5 and the upper cover 2.

[0058] Reference Figure 1 and Figure 2 As shown, the locking adjustment member 6 may include a handle 61 and a stud 62 fixedly connected together, wherein the outer peripheral wall of the stud 62 is processed with a thread suitable for cooperating with the threaded hole, the axis of the stud 62 is parallel to the first direction, and the axis of the handle 61 and the axis of the stud 62 can be perpendicular to each other to facilitate the turning of the locking adjustment member 6, and the lower end of the stud 62 is suitable for abutting against the upper surface of the upper cover 2. When the locking adjustment member 6 is tightened, the stud 62 can move downward, and the stud 62 can push the upper cover 2 to move downward, thereby increasing the distance between the limit plate 5 and the upper cover 2, so as to reduce the distance between the pressing surface 221 and the bearing surface 121, and increase the clamping force of the pressing surface 221 and the bearing surface 121 on the second external high-voltage wiring harness 300 and the first external high-voltage wiring harness 200.

[0059] In other embodiments of the present invention not shown in the figures, the locking adjustment member 6 can be a cylinder, which can include a cylinder body and a push rod. The cylinder body can be fixedly connected to the limit plate 5, and the push rod is suitable for being connected to the top surface of the upper cover 2. Inflating the cylinder body can move the push rod, and the movement of the push rod can drive the upper cover 2 to move, thereby adjusting the distance between the limit plate 5 and the upper cover 2.

[0060] In some embodiments of the present invention, referring to Figure 2-Figure 4 As shown, the electrical connection device 100 also includes: a fuse component 20, the fuse component 20 includes: an insulating seat 201, a current protector 202 and a conductive member 203, the insulating seat 201 has a first mounting position 2011 and a second mounting position 2012, the current protector 202 has a first interface end 2021 and a second interface end 2022, the first interface end 2021 is suitable for being electrically connected to an external wiring harness at the first mounting position 2011, the second interface end 2022 is electrically connected to one end of the conductive member 203 at the second mounting position 2012, and the other end of the conductive member 203 is placed on the bearing surface 121, wherein the first interface end 2021 and the external wiring harness are both detachably connected to the first mounting position 2011, and the second interface end 2022 and one end of the conductive member 203 are both detachably connected to the second mounting position 2012.

[0061] Specifically, the external wiring harness can be a high-voltage wiring harness 300a of the charging and discharging equipment, the current protector 202 can be a fuse, the conductive part 203 can be a copper busbar, the device connection end 300a1 of the high-voltage wiring harness 300a of the charging and discharging equipment and the first interface end 2021 of the current protector 202 can be installed in the first mounting position 2011 through the first fastener 204 to achieve electrical connection between the high-voltage wiring harness 300a of the charging and discharging equipment and the current protector 202, and the conductive part 203 and the second interface end 2022 of the current protector 202 can be installed in the second mounting position 2012 through the second fastener 205 to achieve electrical connection between the conductive part 203 and the current protector 202.

[0062] When conducting a charge and discharge test of the battery system, the battery system high-voltage wire harness 200a can be installed between the bearing surface 121 and the pressing surface 221, and the buckle 4 can be adjusted to a locked state so that the battery connection end 200a1 of the battery system high-voltage wire harness 200a contacts the conductive member 203 on the bearing surface 121, thereby realizing an electrical connection between the battery system high-voltage wire harness 200a and the conductive member 203, so that the battery system high-voltage wire harness 200a, the conductive member 203, the current protector 202 and the charging and discharging equipment high-voltage wire harness 300a are electrically connected in sequence to realize the electrical connection between the battery system and the charging and discharging equipment, so that the charge and discharge test of the battery system can be carried out.

[0063] During the charge and discharge test of the battery system, when an emergency such as an internal short circuit occurs in the battery system, the current may increase rapidly and exceed the carrying capacity of the charging and discharging equipment, causing overcurrent. The current protector 202 can automatically disconnect to disconnect the battery system from the charging and discharging equipment, thereby protecting the charging and discharging equipment and reducing the risk of damage to the charging and discharging equipment.

[0064] In some embodiments of the present invention, referring to Figure 3-Figure 5 As shown, the electrical connection device 100 also includes: a box body 30 and a box door 40. The box body 30 has a receiving groove 301 and a first wiring hole 302 and a second wiring hole 303 connected to the receiving groove 301. The clamp assembly 10 and the fuse assembly 20 are both arranged in the receiving groove 301. The box door 40 cover is arranged on the notch of the receiving groove 301. The box body 30 and the box door 40 are suitable for protecting the clamp assembly 10 and the fuse assembly 20 in the receiving groove 301. They can also prevent people from accidentally entering the receiving groove 301 and getting electric shock during the charge and discharge test of the battery system, which is beneficial to ensuring people's safety.

[0065] It can be understood that the first wiring hole 302 and the second wiring hole 303 are both connected to the accommodating groove 301, and at least a portion of the high-voltage wiring harness 300a of the charging and discharging equipment can enter the accommodating groove 301 through the first wiring hole 302 and be connected to the fuse assembly 20, and at least a portion of the high-voltage wiring harness 200a of the battery system can enter the accommodating groove 301 through the second wiring hole 303 and be connected to the clamp assembly 10. The box body 30 is provided with the first wiring hole 302 and the second wiring hole 303 to facilitate the electrical connection device 100 to connect the high-voltage wiring harness 300a of the charging and discharging equipment and the high-voltage wiring harness 200a of the battery system.

[0066] In some embodiments of the present invention, the box door 40 can be hinged to the box body 30, and the box door 40 can be moved to an open position and a closed position by rotating the box door 40. When the box door 40 is in the closed position, the box door 40 covers the notch of the accommodating groove 301 to close the notch of the accommodating groove 301 to prevent people from accidentally entering the accommodating groove 301 and getting an electric shock. When the box door 40 is in the open position, the notch of the accommodating groove 301 is opened to facilitate the disassembly and assembly of the charging and discharging equipment high-voltage wire harness 300a and the battery system high-voltage wire harness 200a.

[0067] In some embodiments of the present invention, the box body 30 has multiple receiving slots 301 and multiple first wiring holes 302 and multiple second wiring holes 303 corresponding to the multiple receiving slots 301 one by one, and each receiving slot 301 is provided with a clamp assembly 10 and a safety assembly 20.

[0068] Reference Figure 3 and Figure 4 As shown, the box body 30 has two accommodating slots 301, which can respectively form a positive compartment and a negative compartment. The clamp assembly 10 and the fuse assembly 20 in the positive compartment are respectively used to connect the positive electrode of the battery system and the positive electrode of the charging and discharging equipment. The clamp assembly 10 and the fuse assembly 20 in the negative compartment are respectively used to connect the negative electrode of the battery system and the negative electrode of the charging and discharging equipment. By separating the positive compartment and the negative compartment, the risk of short circuit of the wiring harness in the positive compartment and the negative compartment can be reduced.

[0069] In some embodiments of the present invention, referring to Figure 3and Figure 4 As shown, the electrical connection device 100 further includes: a temperature sensor 50 and a display 60. The temperature sensor 50 is used to detect the temperature value of the current protector 202 in real time. The display 60 is provided on the box body 30 or the box door 40. The display 60 is communicatively connected to the temperature sensor 50 and is used to display the temperature value measured by the temperature sensor 50 to facilitate the tester to read the temperature of the current protector 202. The temperature sensor 50 can be provided at the first interface end 2021 of the current protector 202 to detect the temperature value of the current protector 202.

[0070] In some embodiments, the electrical connection device 100 may further include a controller, which may be integrated into the display 60 or may be provided in the box door 40 or the box body 30. The temperature sensor 50 and the display 60 may both be communicatively connected to the controller. The temperature sensor 50 may transmit the detected temperature value of the current protector 202 to the controller. When the temperature value exceeds the preset temperature value, the controller may control the light of the display 60 to flash to alert people to stop the test immediately, thereby reducing the risk of accidents.

[0071] In other embodiments, the electrical connection device 100 may further include an alarm, which may be integrated into the display 60 or may be provided on the box door 40 or the box body 30. The alarm may be communicatively connected to the temperature sensor 50, and the temperature sensor 50 may transmit the detected temperature value of the current protector 202 to the alarm. When the temperature value exceeds the preset temperature value, the alarm may sound an alarm to warn people to stop the test immediately, thereby reducing the risk of accidents.

[0072] In some embodiments of the present invention, the insulating seat 201 and the base 1 can be fixed to the bottom wall of the box 30 .

[0073] According to the electrical connection device 100 of the embodiment of the present invention, the quick-plug structure clamp assembly 10 can simplify the wiring harness connection method between the charging and discharging equipment and the battery system, and ensure that the wiring harness connection between the charging and discharging equipment and the battery system is fully connected while being locked. In the event of an accident such as a fire, the battery system can be quickly disconnected from the charging and discharging equipment to reduce safety risks. During the charging and discharging test of the battery system, the temperature sensor 50 can detect the temperature of the current protector 202 in real time to monitor the temperature of the circuit where the current protector 202 is located, and the temperature sensor 50 can transmit the detected temperature signal to the display 60 for display. When the circuit temperature is high, it is convenient for testers to promptly identify circuit overheating, thereby preventing accidents. In addition, when overcurrent occurs, the current protector 202 can disconnect the charging and discharging equipment from the battery system to protect the charging and discharging equipment from damage.

[0074] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0075] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electrical connection device, characterized in that: include: A clamp assembly (10), the clamp assembly (10) comprising: A base (1), the base (1) having a bearing surface (121); An upper cover (2), the upper cover (2) having a pressing surface (221), the pressing surface (221) and the bearing surface (121) being arranged opposite to each other in a first direction; A guide member (3), wherein the guide member (3) is fixedly connected to the base (1), and in the first direction, the upper cover (2) is movably connected to the guide member (3); A plurality of buckles (4), each of the buckles (4) is connected to the base (1) and the upper cover (2) respectively, and the buckles (4) have a locked state and an unlocked state. When each of the buckles (4) is in the locked state, the distance between the pressing surface (221) and the bearing surface (121) is less than a preset distance. When each of the buckles (4) is in the unlocked state, the distance between the pressing surface (221) and the bearing surface (121) is adjustable.

2. The electrical connection device according to claim 1, characterized in that The base (1) comprises: A base body (11), wherein the guide member (3) is fixedly connected to the base body (11); A lower insulating pad (12) is detachably connected to the base body (11), the guide member (3) is passed through the lower insulating pad (12), and the lower insulating pad (12) has the bearing surface (121).

3. The electrical connection device according to claim 2, characterized in that: The upper cover (2) comprises: An upper cover body (21), wherein the guide member (3) is provided through the upper cover body (21); An upper insulating pad (22) is detachably connected to the upper cover body (21), the guide member (3) is passed through the upper insulating pad (22), and the upper insulating pad (22) has the pressing surface (221).

4. The electrical connection device according to claim 3, characterized in that: The bearing surface (121) has a first conductor limiting groove (1211), and the pressing surface (221) has a second conductor limiting groove, and the first conductor limiting groove (1211) and the second conductor limiting groove are at least partially arranged opposite to each other in the first direction.

5. The electrical connection device according to claim 1, characterized in that The clamp assembly (10) further comprises: a limiting plate (5), the limiting plate (5) being arranged on a side of the upper cover (2) away from the base (1), and the limiting plate (5) being fixedly connected to the guide member (3); A locking adjustment member (6), at least a portion of which is disposed between the limiting plate (5) and the upper cover (2), and the locking adjustment member (6) is used to adjust the distance between the limiting plate (5) and the upper cover (2).

6. The electrical connection device according to claim 5, characterized in that: The limiting plate (5) is provided with a threaded hole, the projection of the threaded hole in the first direction is located inside the upper cover (2), and the locking adjustment member (6) is passed through the threaded hole and threadably engaged with the threaded hole.

7. The electrical connection device according to any one of claims 1 to 6, characterized in that: The electrical connection device further comprises: a safety assembly (20), wherein the safety assembly (20) comprises: An insulating seat (201), the insulating seat (201) having a first installation position (2011) and a second installation position (2012); A current protector (202) and a conductive member (203), wherein the current protector (202) has a first interface end (2021) and a second interface end (2022), wherein the first interface end (2021) is adapted to be electrically connected to an external wiring harness at the first installation position (2011), and the second interface end (2022) is electrically connected to one end of the conductive member (203) at the second installation position (2012), and the other end of the conductive member (203) is placed on the bearing surface (121); The first interface end (2021) and the external wiring harness are both detachably connected to the first mounting position (2011), and the second interface end (2022) and one end of the conductive member (203) are both detachably connected to the second mounting position (2012).

8. The electrical connection device according to claim 7, characterized in that: The electrical connection device further comprises: A box body (30), the box body (30) having a receiving groove (301) and a first wiring hole (302) and a second wiring hole (303) communicated with the receiving groove (301), the clamp assembly (10) and the safety assembly (20) both being arranged in the receiving groove (301); A box door (40) is provided to cover the notch of the accommodating groove (301).

9. The electrical connection device according to claim 8, characterized in that: The box body (30) has a plurality of accommodating slots (301) and a plurality of first wiring holes (302) and a plurality of second wiring holes (303) corresponding one-to-one to the plurality of accommodating slots (301), and each of the accommodating slots (301) is provided with the clamp assembly (10) and the safety assembly (20).

10. The electrical connection device according to claim 8, characterized in that: The electrical connection device further comprises: a temperature sensor (50), the temperature sensor (50) being used to detect a temperature value of the current protector (202); A display (60) is provided on the box body (30) or the box door (40), the display (60) is communicatively connected to the temperature sensor (50), and the display (60) is used to display the temperature value measured by the temperature sensor (50).

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