Electric connection device and battery production system

Abstract

The utility model discloses an electric connection device and a battery production system. The electric connection device is used for electrically connecting a first to-be-connected piece and a second to-be-connected piece. The electric connection device comprises a conductive seat body and a locking assembly. Wherein the conductive seat body is provided with a slot and a connecting part, the connecting part is used for being electrically connected with a first to-be-connected piece, and the slot is used for accommodating a second to-be-connected piece. The locking assembly comprises a locking piece which is rotatably connected with the conductive seat body, and the locking piece has a first state in which the second to-be-connected piece is pressed in the slot and the second to-be-connected piece is in electric contact with the conductive seat body, and a second state in which the second to-be-connected piece is pulled out of the slot. The lock accessory is switched between the first state and the second state, that is, electric connection and disassembly of the second to-be-connected piece and the electric connection device are completed, the operation process is simplified, the tedious degree of manual operation is reduced, and connection operation is convenient and rapid.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to an electrical connection device and a battery production system. Background Art

[0002] In the process of battery production, the two electrode terminals of the battery need to be connected to the busbars respectively, and then the busbars are connected to the wiring harness, and the wiring harness is connected to the charging and discharging equipment to achieve the performance test of the battery. The current problem is that the busbars and the wiring harness are directly connected manually, which is inconvenient to operate. Utility Model Content

[0003] In view of the above problems, the present application provides an electrical connection device that can improve the situation where manual operation remains unchanged.

[0004] In a first aspect, the present application provides an electrical connection device for electrically connecting a first component to be connected and a second component to be connected, comprising:

[0005] The conductive seat body has a slot and a connecting portion, wherein the connecting portion is used to electrically connect to the first member to be connected, and the slot is used to accommodate the second member to be connected;

[0006] The locking assembly includes a locking part which is rotatably connected to the conductive seat. The locking part has a first state of pressing the second connected part into the slot and making the second connected part electrically contact with the conductive seat, and a second state of withdrawing the second connected part from the slot.

[0007] In the past, the busbar and the wiring harness were directly connected manually, which was inconvenient to operate. However, with the present electrical connection device, the first part to be connected (such as a wiring harness) can be fixed to the connecting part, and then a conductive seat with a slot and a locking component are provided. The second part to be connected (such as a busbar) only needs to be inserted into the slot of the conductive seat, and then the locking component is used to put it in the first state of pressing the second part to be connected, and the electrical connection can be completed. Compared with the previous manual connection method, the operation process is simplified, the tediousness of manual operation is reduced, and the connection operation is convenient and quick.

[0008] In some embodiments, the locking accessory has an outwardly convex arc surface, which is arranged around the axis of rotation of the locking accessory relative to the conductive seat body. When the locking accessory is in a first state, the minimum distance from the arc surface to the bottom wall of the slot is L1. When the locking accessory is in a second state, the minimum distance from the arc surface to the bottom wall of the slot is L2. L1 is smaller than L2, and the bottom wall is parallel to the insertion direction of the slot.

[0009] By setting an outwardly convex arc surface and setting it around the axis of rotation of the locking accessory relative to the conductive seat body, the change in the distance from the arc surface to the bottom wall of the slot at different rotation positions is used to achieve the pressing and releasing operations on the second part to be connected. When the locking accessory is in the first state, L1 is smaller than L2, and the arc surface is closer to the bottom wall of the slot at this time, which can apply appropriate pressure to the second part to be connected inserted into the slot, so that the second part to be connected is pressed against the bottom wall of the slot, ensuring a stable electrical contact effect; and when the second part to be connected needs to be pulled out, the locking accessory is rotated to put it in the second state, and the distance from the arc surface to the bottom wall of the slot increases to L2, which releases the pressing force on the second part to be connected, making it easier to pull it out of the slot. Therefore, by rotating the locking accessory, the second part to be connected and the electrical connection device can be quickly disassembled.

[0010] In some embodiments, the arc surface includes at least a portion of a cylindrical surface, and the axis of the cylindrical surface is parallel to the axis of rotation of the locking accessory relative to the conductive seat body and is spaced apart.

[0011] When the locking attachment is rotated to lock the second part to be connected, the setting of the cylindrical surface can gradually increase the clamping force of the second part to be connected, so as to reduce the probability of jamming caused by a sudden increase in resistance during the rotation process, and make the locking smoother.

[0012] In some embodiments, the locking assembly further comprises:

[0013] The pressing plate is located in the slot and is configured to be driven by the locking accessory to press the second member to be connected against the bottom wall of the slot.

[0014] The setting of the pressure plate can increase the pressing area of ​​the second part to be connected, which can make the connection more secure on the one hand and reduce the damage to the second part to be connected on the other hand.

[0015] In some embodiments, the slot includes a top wall, and the top wall is used to limit the movement of the pressure plate along the second direction.

[0016] Thus, the probability of the pressing plate being disengaged from the slot during use can be reduced, so that the electrical connection device can work stably and reliably.

[0017] In some embodiments, the electrical connection device further comprises:

[0018] An elastic member, one end of the elastic member abuts against the bottom wall of the slot, and the other end of the elastic member abuts against the pressure plate. The elastic force of the elastic member has a tendency to move the pressure plate away from the bottom wall in a direction perpendicular to the bottom wall.

[0019] When the second part to be connected is inserted into the slot, the presence of the elastic part enables the pressure plate to automatically adjust its position to a certain extent in accordance with the insertion action, so that there is a certain insertion space between the pressure plate and the bottom wall of the slot, thereby reducing the trouble of manually adjusting the pressure plate and improving the convenience of operation.

[0020] In some embodiments, an embedded structure is provided on the surface of the pressure plate facing the slot, the conductive seat body is provided with a connecting hole connected to the slot, and the electrical connection device also includes a limiter, which is connected to the connecting hole, and part of the limiter is located in the embedded structure, and the limiter is used to limit the position of the pressure plate along the insertion direction of the slot.

[0021] Thus, the probability of the pressing plate being detached from the insertion end of the slot during use can be reduced, so that the electrical connection device can work stably and reliably.

[0022] In some embodiments, the limiting member is threadedly connected to the connecting hole.

[0023] When the pressing plate is damaged, the limiting member can be disengaged from the embedded structure to pull the pressing plate out of the slot, thereby facilitating the replacement of the pressing plate.

[0024] In some embodiments, the connecting portion is a connecting hole or a notch.

[0025] Thus, a wiring terminal can be provided at one end of the second member to be connected, and the wiring terminal can be connected to the connecting portion by means of screws to facilitate assembly and disassembly.

[0026] In some embodiments, the connecting portion and the slot are spaced apart along an insertion direction of the slot.

[0027] The connecting portion is used to electrically connect to the first part to be connected, and the slot is used to receive the second part to be connected. They are spaced apart along the insertion direction of the slot. During the installation process, the mutual obstruction between the first part to be connected and the second part to be connected in space can be reduced, making it convenient to connect the first part to be connected and the second part to be connected to the electrical connection device respectively.

[0028] In a second aspect, the present application provides a battery production system, comprising the electrical connection device of the first aspect, wherein the first part to be connected is a wiring harness, the second part to be connected is a bus bar, the connecting portion is electrically connected to the wiring harness, the bus bar is disposed in a slot and electrically connected to the conductive seat.

[0029] Since the battery production system includes all the technical features of the electrical connection device of the first aspect, the effects are the same as those described above and will not be repeated here.

[0030] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0032] Figure 1 An exploded view of an electrical connection device according to an embodiment of the present application;

[0033] Figure 2 This is an isometric view of an electrical connection device in a first state according to an embodiment of the present application;

[0034] Figure 3 It is an isometric view of an electrical connection device in a second state according to an embodiment of the present application;

[0035] Figure 4 This is an axonometric diagram of an electrical connection device connecting a wiring harness and a battery according to an embodiment of the present application.

[0036] The reference numerals in the specific implementation manner are as follows:

[0037] 100. Electrical connection device;

[0038] 10. Conductive seat; 11. Connecting part; 12. Slot; 121. Top wall; 122. Bottom wall; 13. Connecting hole; 20. Locking assembly; 21. Locking attachment; 211. Arc surface; 22. Pressing plate; 221. Embedding structure; 30. Elastic member; 40. Limiting member; 50. Rotating shaft;

[0039] 200, battery; 210, busbar;

[0040] 300, wiring harness; 310, terminal block;

[0041] X, insertion direction. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0044] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0048] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0049] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0050] In the process of battery production, the two electrode terminals of the battery need to be connected to the busbars respectively, and then the busbars (such as the bars that connect the electrode terminals of the battery cells) are connected to the wiring harness, and the wiring harness is connected to the charging and discharging equipment to achieve battery performance testing. The current problem is that the busbars and the wiring harnesses are directly fixed manually using bolts and nuts. Especially when the same set of wiring harnesses is used to repeatedly connect different batteries, the bolts connecting the wiring harness and the busbars need to be disassembled and assembled multiple times, which is inconvenient to operate.

[0051] In view of this, the present application provides an electrical connection device, in which the first part to be connected can be a wiring harness, and the second part to be connected can be a busbar. After the wiring harness and the connecting part are fixed, a conductive seat with a slot and a locking assembly are provided. The busbar only needs to be inserted into the slot of the conductive seat, and then the locking accessory is used to operate it to be in a first state of pressing the second part to be connected, so as to complete the electrical connection. Compared with the previous manual connection method, it is only necessary to rotate the locking accessory to complete the electrical connection between the busbar and the wiring harness. In particular, when using the same set of wiring harnesses to repeatedly connect different batteries, it is only necessary to rotate the locking accessory each time for disassembly and assembly, which simplifies the operation process, reduces the tediousness of manual operation, and makes the connection operation convenient and quick.

[0052] The electrical connection device provided in the present application can be applied to various fields such as but not limited to household appliances, battery manufacturing, automobile field, medical equipment, etc., and can be used for electrical connection between two conductive parts.

[0053] For the convenience of explanation, please refer to the following examples. Figure 1-Figure 4 , an electrical connection device 100 according to some embodiments of the present application is taken as an example for description.

[0054] The electrical connection device 100 is used to electrically connect a first part to be connected and a second part to be connected. The electrical connection device 100 includes a conductive seat 10 and a locking assembly 20. The conductive seat 10 has a slot 12 and a connecting portion 11. The connecting portion 11 is used to electrically connect with the first part to be connected, and the slot 12 is used to accommodate the second part to be connected. The locking assembly 20 includes a locking attachment 21, which is rotatably connected to the conductive seat 10. The locking attachment 21 has a first state in which the second part to be connected is pressed against the slot 12 and the second part to be connected is electrically contacted with the conductive seat 10, and a second state in which the second part to be connected is pulled out of the slot 12.

[0055] The conductive base 10 can be made of a material with good conductivity and certain mechanical strength, such as steel, copper alloy or aluminum alloy. These materials can ensure that the current is efficiently transmitted through the conductive base 10, and can also withstand various external forces that may be encountered during actual use, so that the conductive base 10 has a certain rigidity.

[0056] The conductive base 10 as a whole presents a regular or irregular block shape, and the shape design of the conductive base 10 will be determined according to the specific application scenario and the layout requirements of the components to be connected. For example, in some relatively compact scenarios, the conductive base 10 may be designed to be flat to better adapt to the limited installation space; while in large electrical systems with high current carrying capacity requirements, its size may be relatively larger and the structure may be thicker to ensure safety and reliability when large currents pass through.

[0057] The profile shape of the cross section of the slot 12 may be, but is not limited to, a T-shape, a rectangle or a trapezoid, and the cross section of the slot 12 is perpendicular to the insertion direction of the slot 12 .

[0058] The connecting portion 11 is used to electrically connect with the first to-be-connected member, and its structural form is various. It can be a protruding metal connecting column directly set on a side of the conductive seat body 10, and the shape of the connecting column can be cylindrical, prismatic, etc., and a corresponding threaded hole or stud is set at its end, which is convenient for fastening and connecting with the first to-be-connected member (such as a circuit board with a corresponding mounting hole or a terminal 310 of other electrical equipment) through fasteners such as screws to ensure the firmness of the connection and the reliability of the electrical contact.

[0059] The locking attachment 21 and the conductive seat 10 are connected by rotation to achieve relative movement, and this rotation connection can be achieved through a variety of mechanical structures. For example, a cylindrical rotating shaft 50 hole is set on the conductive seat 10, and a rotating shaft 50 adapted to the rotating shaft 50 hole is installed at the corresponding position of the locking attachment 21. After the rotating shaft 50 is inserted into the rotating shaft 50 hole, the end of the rotating shaft 50 can extend from the rotating shaft 50 hole and be threaded with a nut for axial limitation. The two ends of the rotating shaft 50 can also be connected to the rotating shaft 50 hole by riveting.

[0060] As an example, when the locking member 21 is in the first state, a protrusion is provided on the side of the locking member 21 facing the slot 12, and the protrusion can press the second member to be connected to the slot 12. When the locking member 21 is in the second state, the protrusion can be moved out of the slot 12 as the locking member 21 rotates, so as to contact the second member to be connected. The locking member 21 can also be provided with an arc surface 211 structure to achieve the pressing and fixing of the second member to be connected, such as an eccentric spherical surface, an eccentric cylindrical surface or an elliptical surface.

[0061] In the past, the busbar 210 and the wiring harness 300 were directly connected manually, which was inconvenient to operate. However, with the present electrical connection device 100, the first component to be connected (such as the wiring harness 300) can be fixed to the connecting portion 11, and then a conductive base 10 with a slot 12 and a locking component 20 are provided. The second component to be connected (such as the busbar 210) only needs to be inserted into the slot 12 of the conductive base 10, and then the locking component 21 is used to operate it to be in the first state of pressing the second component to be connected, and the electrical connection can be completed. Compared with the previous manual connection method, the operation process is simplified, the tediousness of manual operation is reduced, and the connection operation is convenient and quick.

[0062] In some embodiments, please refer to Figure 1-Figure 3 The locking accessory 21 has an outwardly convex arc surface 211, and the arc surface 211 is arranged around the axis of rotation of the locking accessory 21 relative to the conductive seat body 10. When the locking accessory 21 is in the first state, the minimum distance from the arc surface 211 to the bottom wall 122 of the slot 12 is L1. When the locking accessory 21 is in the second state, the minimum distance from the arc surface 211 to the bottom wall 122 of the slot 12 is L2, L1 is smaller than L2, and the bottom wall 122 is parallel to the insertion direction of the slot 12.

[0063] The arc surface 211 may be, but is not limited to, a spherical surface, a cylindrical surface, an ellipsoidal arc surface 211 , an arc surface 211 having a parabolic shape, or an arc surface 211 having a parabolic shape.

[0064] By setting an outwardly convex arc surface 211 and setting it around the axis of rotation of the locking accessory 21 relative to the conductive seat body 10, the change in the distance from the arc surface 211 to the bottom wall 122 of the slot 12 at different rotation positions is utilized to realize the pressing and releasing operation of the second to-be-connected member. When the locking accessory 21 is in the first state, L1 is smaller than L2, and the arc surface 211 is closer to the bottom wall 122 of the slot 12 at this time, and can apply appropriate pressure to the second to-be-connected member inserted into the slot 12, so that the second to-be-connected member is pressed against the bottom wall 122 of the slot 12, ensuring a stable electrical contact effect; and when the second to-be-connected member needs to be pulled out, the locking accessory 21 is rotated to put it in the second state, and the distance from the arc surface 211 to the bottom wall 122 of the slot 12 increases to L2, thereby releasing the pressing force on the second to-be-connected member, and facilitating its smooth extraction from the slot 12. Therefore, by rotating the locking accessory 21, the second to-be-connected member and the electrical connection device 100 can be quickly disassembled and assembled.

[0065] In some embodiments, please refer to Figure 1-Figure 3 The arc surface 211 includes at least a portion of a cylindrical surface, and the axis of the cylindrical surface is parallel to the axis of rotation of the locking accessory 21 relative to the conductive seat body 10 and is spaced apart.

[0066] When the locking attachment 21 is rotated to lock the second part to be connected, the setting of the cylindrical surface can gradually increase the clamping force of the second part to be connected, so as to reduce the probability of jamming caused by a sudden increase in resistance during the rotation process, and make the locking smoother.

[0067] In some embodiments, please refer to Figure 1-Figure 3 The locking assembly 20 further includes a pressing plate 22 . The pressing plate 22 is located in the slot 12 , and is configured to be driven by the locking accessory 21 to press the second member to be connected against the bottom wall 122 of the slot 12 .

[0068] The surface of the pressing plate 22 may be properly processed, such as adding anti-skid lines or coatings, to increase the friction between the pressing plate 22 and the second member to be connected, and further enhance the stability of the electrical connection. The pressing plate 22 may also be a rigid plate.

[0069] The pressing plate 22 may be a conductor or an insulator.

[0070] The arrangement of the pressing plate 22 can increase the pressing area of ​​the second member to be connected, which can make the connection more secure on the one hand and reduce the damage to the second member to be connected on the other hand.

[0071] In some embodiments, please refer to Figure 1-Figure 3 The slot 12 includes a top wall 121 , the top wall 121 is spaced apart from a bottom wall 122 , and a portion of the pressure plate is disposed between the top wall 121 and the bottom wall 122 .

[0072] As an example, along the arrangement direction of the bottom wall 122 and the top wall 121, one side of the top wall 121 has a notch, and during the rotation of the locking member 21, part of the locking member 21 can rotate into the notch. The notch and the insertion opening of the slot 12 have different directions.

[0073] Taking the upward placement position of the locking accessory 21 as a reference, the wall above the slot 12 is the top wall 121 , and the wall below the slot 12 is the bottom wall 122 .

[0074] Therefore, the probability of the pressing plate 22 being separated from the slot 12 during use can be reduced, so that the electrical connection device 100 can work stably and reliably.

[0075] In some embodiments, please refer to Figure 1 The electrical connection device 100 also includes an elastic member 30, one end of the elastic member 30 abuts against the bottom wall 122 of the slot 12, and the other end of the elastic member 30 abuts against the pressure plate 22. Along the direction perpendicular to the bottom wall 122, the elastic force of the elastic member 30 has a tendency to move the pressure plate 22 away from the bottom wall 122.

[0076] The elastic member 30 may be a spring, an elastic sheet or other elastic member. When the locking member 21 is in the first state, the locking member 21 drives the pressing plate 22 to overcome the elastic force of the elastic member 30 and move toward the bottom wall 122 of the slot 12, thereby pressing the second member to be connected against the bottom wall 122 to achieve electrical connection.

[0077] When the locking member 21 is switched to the second state, the pressing plate 22 moves away from the bottom wall 122 along the second direction Y under the elastic force of the elastic member 30 , and the second member to be connected can be conveniently drawn out of the slot 12 .

[0078] The provision of the elastic member 30 enables the pressing plate 22 to automatically adapt when inserting or removing the second member to be connected, thereby providing a certain buffering effect and also helping to maintain the stability of the electrical connection.

[0079] As an example, the elastic member 30 is an elastic sheet, and an elastic sheet is provided on the side of the pressure plate 22 away from the locking accessory 21. The elastic sheet is a bending mechanism, and a limiting groove is provided on the side of the pressure plate 22 away from the locking accessory 21. Part of the elastic sheet is located in the limiting groove to limit the movement of the elastic sheet so that when the second part to be connected is inserted into the limiting groove, the interference between the elastic member 30 is reduced.

[0080] When the second component to be connected is inserted into the slot 12, the presence of the elastic member 30 enables the pressure plate 22 to automatically adjust its position to a certain extent in accordance with the insertion action, so that there is a certain insertion space between the pressure plate 22 and the bottom wall 122 of the slot 12, thereby reducing the trouble of manually adjusting the pressure plate 22 and improving the convenience of operation.

[0081] In some embodiments, please refer to Figure 1 An embedded structure 221 is provided on the surface of the pressure plate 22 facing the slot 12, and the conductive seat body 10 is provided with a connecting hole 13 connected to the slot 12. The electrical connection device 100 also includes a limit member 40, which is connected to the connecting hole 13, and part of the limit member 40 is located in the embedded structure 221. The limit member 40 is used to limit the position of the pressure plate 22 along the insertion direction X of the slot 12.

[0082] The limiting member 40 and the connecting hole 13 may be connected by welding, riveting or threading.

[0083] The embedded structure 221 can be arranged on the side of the pressing plate 22 facing the bottom wall 122, or on the side of the side wall of the pressing plate 22 facing the slot 12. For example, the embedded structure 221 can be a guide hole, and the embedded structure 221 is arranged on the side of the pressing plate 22 facing the bottom wall 122, and the limiter 40 is located in the guide hole. When the pressing plate 22 moves, the limiter will move relative to the axial direction of the guide hole.

[0084] The embedded structure 221 may be a notch, a groove or a limiting hole.

[0085] Thus, the probability of the pressing plate 22 being disengaged from the insertion end of the slot 12 during use can be reduced, so that the electrical connection device 100 can work stably and reliably.

[0086] In some embodiments, please refer to Figure 1 The limiting member 40 is threadedly connected to the connecting hole 13 .

[0087] As an example, the limiting member 40 may be, but is not limited to, a screw or a set screw, etc., and the limiting member 40 is threadedly connected to the connecting hole 13 .

[0088] When the pressing plate 22 is damaged, the limiting member 40 can be disengaged from the embedded structure 221 to pull the pressing plate 22 out of the slot 12 , thereby facilitating the replacement of the pressing plate 22 .

[0089] In some embodiments, the connection portion 11 is a connection hole 13 or a notch.

[0090] Taking the first to-be-connected member as the wiring harness 300 as an example, the connection portion 11 is the connection hole 13, and the wiring harness 300 can be connected to the connection hole 13 by binding or welding, or the wiring harness 300 can be pressed to the end of the connection hole 13 by screws. The wiring terminal 310 can also be electrically connected to the end of the wiring harness 300, and the wiring terminal 310 and the connection hole 13 are fixed by screws or bolts. When the connection portion 11 is a notch, the wiring harness 300 can be pressed to the notch position by bolts. When the wiring harness 300 needs to be separated from the electrical connection device 100, the bolts can be loosened and pulled out from the notch without completely unscrewing the bolts, so as to increase the speed of disassembly.

[0091] Thus, a connection terminal 310 may be provided at one end of the second member to be connected, and the connection terminal 310 may be connected to the connection portion 11 by means of screws to facilitate assembly and disassembly.

[0092] In some embodiments, please refer to Figure 1 The connecting portion 11 and the slot 12 are spaced apart from each other along the insertion direction X of the slot 12 .

[0093] The connecting portion 11 is used to electrically connect with the first part to be connected, and the slot 12 is used to receive the second part to be connected. They are spaced apart along the insertion direction X of the slot 12. During the installation process, the mutual obstruction between the first part to be connected and the second part to be connected in space can be reduced, making it convenient to connect the first part to be connected and the second part to be connected to the electrical connection device 100 respectively.

[0094] For the convenience of description, the following embodiments are described by taking a battery 200 production system according to some embodiments of the present application as an example.

[0095] The battery 200 production system includes the electrical connection device 100 of the above embodiment, the first part to be connected is the wire harness 300 , the second part to be connected is the busbar 210 , and the connection portion 11 is electrically connected to the wire harness 300 .

[0096] Since the battery 200 production system includes the electrical connection device 100 of the above embodiment, the effects are the same as those described above and will not be described in detail herein.

[0097] In an optional embodiment of the electrical connection device 100, please refer to Figure 1-Figure 4The electrical connection device 100 is used to electrically connect a first part to be connected and a second part to be connected. The first part to be connected is a busbar 210, and the second part to be connected is a wiring harness 300. The end of the wiring harness 300 is electrically connected to a terminal 310. The electrical connection device 100 includes a conductive seat 10 and a locking assembly 20. The conductive seat 10 has a slot 12 and a connecting portion 11. The connecting portion 11 is used to electrically connect to the first part to be connected, and the slot 12 is used to accommodate the second part to be connected. The locking assembly 20 includes a locking attachment 21, which is rotatably connected to the conductive seat 10. The locking attachment 21 has a first state in which the second part to be connected is pressed against the slot 12 and the second part to be connected is electrically contacted with the conductive seat 10, and a second state in which the second part to be connected is pulled out of the slot 12. The locking assembly 20 includes a locking attachment 21, which is rotatably connected to the conductive seat 10. The locking attachment 21 has a first state in which the second member to be connected is pressed against the slot 12 and the second member to be connected is electrically contacted with the conductive seat 10, and a second state in which the second member to be connected is withdrawn from the slot 12. The locking attachment 21 has an outwardly convex arc surface 211, which is arranged around the axis of rotation of the locking attachment 21 relative to the conductive seat 10. When the locking attachment 21 is in the first state, the minimum distance from the arc surface 211 to the bottom wall 122 of the slot 12 is L1. When the locking attachment 21 is in the second state, the minimum distance from the arc surface 211 to the bottom wall 122 of the slot 12 is L2, L1 is less than L2, and the bottom wall 122 is parallel to the insertion direction of the slot 12. The arc surface 211 includes at least a portion of a cylindrical surface, and the axis of the cylindrical surface is parallel to the axis of rotation of the locking attachment 21 relative to the conductive seat 10 and is arranged at intervals. The locking assembly 20 also includes a pressing plate 22. The pressing plate 22 is located in the slot 12, and is configured to be driven by the locking accessory 21 to press the second to-be-connected member against the bottom wall 122 of the slot 12. The slot 12 includes a top wall 121, which is spaced apart from the bottom wall 122, and a portion of the pressing plate is disposed between the top wall 121 and the bottom wall 122. The electrical connection device 100 also includes an elastic member 30, one end of the elastic member 30 abuts against the bottom wall 122 of the slot 12, and the other end of the elastic member 30 abuts against the pressing plate 22. In a direction perpendicular to the bottom wall 122, the elastic force of the elastic member 30 has a tendency to move the pressing plate 22 away from the bottom wall 122. The surface of the pressing plate 22 facing the slot 12 is provided with an embedded structure 221, the conductive seat body 10 is provided with a connection hole 13 connected to the slot 12, and the electrical connection device 100 further includes a limiter 40, the limiter 40 is connected to the connection hole 13, and part of the limiter 40 is located in the embedded structure 221, and the limiter 40 is used to limit the position of the pressing plate 22 along the insertion direction X of the slot 12. The limiter 40 is threadedly connected to the connection hole 13. The connecting portion 11 is a connection hole 13, and the wiring terminal 310 is connected to the connection hole 13 by a bolt, and the connecting portion 11 and the slot 12 are spaced apart along the insertion direction X of the slot 12.

[0098] By setting an outwardly convex arc surface 211 and surrounding the axis of rotation of the locking attachment 21 relative to the conductive seat 10, the change in the distance from the arc surface 211 to the bottom wall 122 of the slot 12 at different rotation positions is utilized to realize the pressing and releasing operation of the busbar 210. When the locking attachment 21 is in the first state, L1 is smaller than L2, and the arc surface 211 is closer to the bottom wall 122 of the slot 12 at this time, and can apply appropriate pressure to the busbar 210 inserted into the slot 12, so that the busbar 210 is pressed against the bottom wall 122 of the slot 12, ensuring a stable electrical contact effect; and when the busbar 210 needs to be pulled out, the locking attachment 21 is rotated to put it in the second state, and the distance from the arc surface 211 to the bottom wall 122 of the slot 12 increases to L2, which releases the pressing force on the busbar 210, facilitating its smooth extraction from the slot 12. Therefore, by rotating the locking attachment 21, the second to-be-connected member and the electrical connection device 100 can be quickly disassembled and assembled. Furthermore, the slot 12 and the limiting member 40 can limit the movement of the pressing plate 22. When the pressing plate 22 is damaged, the limiting member 40 can be loosened and the pressing plate 22 can be replaced for easy disassembly.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An electrical connection device for electrically connecting a first part to be connected and a second part to be connected, characterized in that: include: A conductive seat body, comprising a slot and a connecting portion, wherein the connecting portion is used to electrically connect to the first member to be connected, and the slot is used to accommodate the second member to be connected; The locking assembly includes a locking component which is rotatably connected to the conductive seat. The locking component has a first state in which the second connected member is pressed against the slot and makes electrical contact between the second connected member and the conductive seat, and a second state in which the second connected member is withdrawn from the slot.

2. The electrical connection device according to claim 1, characterized in that: The locking accessory has an outwardly convex arc surface, and the arc surface is arranged around the axis of rotation of the locking accessory relative to the conductive seat body. When the locking accessory is in the first state, the minimum distance from the arc surface to the bottom wall of the slot is L1. When the locking accessory is in the second state, the minimum distance from the arc surface to the bottom wall of the slot is L2, L1 is smaller than L2, and the bottom wall is parallel to the insertion direction of the slot.

3. The electrical connection device according to claim 2, characterized in that: The arc surface includes at least a portion of a cylindrical surface, and the axis of the cylindrical surface is parallel to the axis of rotation of the locking component relative to the conductive seat body and is spaced apart.

4. The electrical connection device according to any one of claims 1 to 3, characterized in that: The locking assembly also includes: A pressing plate is located in the slot, and the pressing plate is configured to be driven by the locking component to press the second member to be connected against the bottom wall of the slot.

5. The electrical connection device according to claim 4, characterized in that: The slot includes a top wall, the top wall is spaced apart from the bottom wall, and part of the pressure plate is disposed between the top wall and the bottom wall.

6. The electrical connection device according to claim 4, characterized in that: The electrical connection device also includes: An elastic member, one end of which abuts against the bottom wall of the slot, and the other end of which abuts against the pressure plate, and the elastic force of the elastic member has a tendency to move the pressure plate away from the bottom wall along a direction perpendicular to the bottom wall.

7. The electrical connection device according to claim 4, characterized in that: The surface of the pressure plate facing the slot is provided with an embedded structure, the conductive seat body is provided with a connecting hole connected to the slot, the electrical connection device also includes a limiter, the limiter is connected to the connecting hole, and part of the limiter is located in the embedded structure, and the limiter is used to limit the position of the pressure plate along the insertion direction of the slot.

8. The electrical connection device according to claim 7, characterized in that: The limiting member is threadedly connected to the connecting hole.

9. The electrical connection device according to any one of claims 1 to 3, characterized in that: The connecting portion is a connecting hole or a notch.

10. The electrical connection device according to any one of claims 1 to 3, characterized in that: The connecting portion and the slot are spaced apart from each other along an insertion direction of the slot.

11. A battery production system, characterized in that: It comprises an electrical connection device as described in any one of claims 1 to 10, wherein the first part to be connected is a wiring harness, the second part to be connected is a busbar, the connecting portion is electrically connected to the wiring harness, the busbar is arranged in the slot and electrically connected to the conductive seat.

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