Connector

Abstract

The invention provides a connector which comprises a shell with a first plugging end and a second plugging end which are communicated with each other, a first terminal assembly plugged into the shell along the first plugging end, a second terminal assembly plugged into the shell along the second plugging end, and a second terminal assembly with one end connected with the first terminal assembly and the other end connected with the second terminal assembly. And the other end of the connecting assembly is connected with the second terminal assembly. And the connecting assembly comprises a third conductive part and a sleeving part, wherein one end of the third conductive part is plugged with the first terminal assembly, and the other end of the third conductive part is in attached connection with the second terminal assembly, and the sleeving part is provided with a pin structure plugged with the first terminal assembly, is internally provided with an accommodating groove for accommodating the third conductive part, and wraps the third conductive part. Insulation gaps are formed between the adjacent third conductive parts arranged side by side and the adjacent containing grooves, the pin structures are arranged in the insulation gaps, and the pin structures and the third conductive parts are arranged side by side. By means of the structure, various inserting structures are achieved, and close fit is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of connectors, in particular to a connector. BACKGROUND

[0002] With the development of new energy vehicle high-voltage platform and high-power charging technology, the connector needs to meet electrical performance, mechanical stability and space constraints. The electrical performance is to bear large current, and requires multiple conductive channels in parallel to reduce contact resistance. The mechanical stability refers to the anti-fretting corrosion ability of the plug-in interface under the vibration environment of the vehicle. The space constraint is the compression of the installation space of the battery pack or motor controller.

[0003] In order to meet the requirements of electrical performance and mechanical stability, multiple plug-in structures are often used in the prior art, however, increasing multiple plug-in structures will inevitably increase the volume of the connector. In actual application, it is embodied as arranging two groups of independent areas side by side in the cross section of the connector, one for the conductive part and the other for the pin. Thus, the cross-sectional size is increased.

[0004] Therefore, there is a need for a connector with multiple plug-in structures and tight fit. SUMMARY

[0005] Therefore, it is necessary to provide a connector with multiple plug-in structures and tight fit to solve the above problems.

[0006] Embodiments of the present application provide a connector, comprising a shell having a first plug-in end and a second plug-in end in communication, a first terminal assembly plugged into the shell along the first plug-in end, and a second terminal assembly plugged into the shell along the second plug-in end, the connector further comprising: a connecting assembly connected to the first terminal assembly at one end and connected to the second terminal assembly at the other end, the connecting assembly comprising: a third conductive part plugged into the first terminal assembly at one end and abuttingly connected to the second terminal assembly at the other end; a sleeve part having a pin structure plugged into the first terminal assembly and an accommodation slot in the interior of the sleeve part accommodating the third conductive part and wrapping the third conductive part; the third conductive parts arranged adjacent to each other in parallel, an insulating gap formed between adjacent accommodation slots, the pin structure arranged in the insulating gap and arranged in parallel with the pin structure.

[0007] In at least one embodiment of the present application, the sleeve part is integrally formed, the plug-in direction of the pin structure is the same as the plug-in direction of the third conductive part, and the third conductive part abuts the accommodation slot along the plug-in direction.

[0008] In at least one embodiment of the present application, the outer surface of the sleeve is provided with a first positioning structure in the circumferential direction, which is in abutment with the shell in the circumferential direction to fix the sleeve and ensure the accuracy of the plug-in position.

[0009] In at least one embodiment of the present application, when the first positioning structure is discontinuous, the first positioning structure is located at the corners of two side-by-side accommodating grooves and the pin structure, respectively.

[0010] In at least one embodiment of the present application, the first terminal assembly includes a first conductive part plugged with the connecting assembly and a plug-in sleeve, the plug-in sleeve is provided with a limiting groove, and the first conductive part passes through the limiting groove; The first conductive part includes: a first plug-in part, two first plug-in parts pass through the limiting groove and are plugged with the third conductive part, respectively; a second plug-in part arranged side by side with the first plug-in part and plugged with the pin structure; a second positioning structure integrally formed with the outer surface of the first plug-in part, the first plug-in part is located on the side away from the adjacent first plug-in part, and the second positioning structure is symmetrically arranged, and the second positioning structure is in abutment with the plug-in sleeve in the plug-in direction; a third positioning structure integrally formed with the outer surface of the second plug-in part and arranged perpendicularly to the second positioning structure, the third positioning structure is in abutment with the plug-in sleeve in the plug-in direction; The second positioning structure and the third positioning structure form a circumferential positioning structure of the first conductive part and the plug-in sleeve.

[0011] In at least one embodiment of the present application, the first plug-in part and the second plug-in part are both provided with a shrinkage groove, and the shrinkage groove is in communication with the second positioning structure and the third positioning structure, respectively; When the first plug-in part and the second plug-in part are inserted into the plug-in sleeve, respectively, the plug-in sleeve applies a pressing force to the second positioning structure and the third positioning structure, respectively, and the second positioning structure and the third positioning structure are shrunk into the shrinkage groove, respectively, to be inserted into the plug-in sleeve and form abutment in the plug-in direction with the plug-in sleeve.

[0012] In at least one embodiment of the present application, the first terminal assembly further includes: a sealing part integrally formed with the first plug-in part and the second plug-in part, respectively, the sealing part is close to the starting end of the limiting groove through which the first conductive part passes, and the sealing part is in interference fit with the limiting groove to isolate the external environment and the internal environment of the connector.

[0013] In at least one embodiment of the present application, the third conductive member comprises: a first contact end inserted with the first conductive member and a second contact end inserted with the second terminal assembly, the first contact end being in communication with the second contact end; the first contact end being inserted with the third conductive member, the second contact end being attached with the second terminal assembly, and the second contact end being provided with a protruding structure attached with the second terminal assembly.

[0014] In at least one embodiment of the present application, the connector further comprises: a handle mounted on the outer surface of the shell and rotatable relative to the shell, one end of the handle being located at the first insertion end, and the other end of the handle being located at the second insertion end and abutting against the shell in the locked state; a locking guide mounted on the outer surface of the shell and slidingly connected with the shell, and abutting against the shell, wherein in the locked state, the locking guide is inserted into the handle, and the locking guide extends into the second insertion end and abuts against the handle and the shell, respectively.

[0015] In at least one embodiment of the present application, the connector can be a connector of any shape, such as a straight connector or a bent connector.

[0016] The above-mentioned connector has the following advantages: The two third conductive members are arranged side by side in the accommodating grooves of the sleeve member. The gap between the adjacent accommodating grooves is directly used to arrange the pin structures and the third conductive members side by side in the same horizontal section. The gap between the two third conductive members on the sleeve member for insulation is converted into a functional area of the pin, without occupying additional cross-sectional space. The electrical connection of the conductive member and the mechanical reinforcement of the pin coexist in the same longitudinal layer, rather than being stacked in multiple layers.

[0017] The accommodating grooves of the sleeve member wrap and fix the third conductive member, providing insulation protection. When the third conductive member is a clamping member with multiple pin structures, the sheet-shaped pin is expanded by the pin structure when the sheet-shaped pin is inserted with the first insertion part. Since the pin structure is located in the accommodating groove, the accommodating groove is inserted with the pin structure, and the electrical path of one of the connectors is inserted with the third conductive member and the mechanical path of the connector is inserted with the first terminal assembly and the pin of the sleeve member. The electrical path and the mechanical path are connected by sharing the same insertion action, without the need for step-by-step operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The connector of the present application is a perspective view of a straight connector; Figure 2Figure 1 is a front view of the connector of the present application in a straight-in shape; Figure 3 Figure 2 is a top view of the connector of the present application in a straight-in shape; Figure 4 Figure 3 is a sectional view of A-A in Figure 1; Figure 2 Figure 5 Figure 4 is a sectional view of B-B in Figure 1; Figure 3 Figure 6 Figure 5 is a sectional view of C-C in Figure 1; Figure 3 Figure 7 Figure 6 is an exploded view of the connector of the present application in a straight-in shape; Figure 8 Figure 7 is an assembly view of the second terminal assembly and the connecting assembly of the connector of the present application in a straight-in shape; Figure 9 Figure 8 is a perspective view of the sleeve of the present application; Figure 10 Figure 9 is a top view of the locking guide of the present application; Figure 11 Figure 10 is a perspective view of the locking guide of the present application; Figure 12 Figure 11 is a perspective view of the connector of the present application in a bent shape; Figure 13 Figure 12 is an assembly view of the first terminal assembly, the second terminal assembly and the connecting assembly of the connector of the present application in a bent shape; Figure 14 Figure 13 is an assembly view of the second terminal assembly and the connecting assembly of the connector of the present application in a bent shape; Main component symbol explanation 100, connector; 10, housing; 11, first plug-in end; 12, second plug-in end; 13, inner housing; 14, outer housing; 20, first terminal assembly; 21, first conductive member; 211, first plug-in part; 2111, sheet-like pin; 2112, limiting member; 2113, second positioning structure; 212, second plug-in part; 2121, third positioning structure; 215, shrinkage groove; 22, plug-in sleeve; 221, limiting groove; 222, accommodating housing; 23, sealing member; 30, second terminal assembly; 31, second conductive member; 32, sealing housing; 40, connecting assembly; 41, third conductive member; 411, first contact end; 412, second contact end; 413, protruding structure; 42, sleeve; 421, pin structure; 422, accommodating groove; 423, insulating gap; 424, first positioning structure; 50, handle; 60, locking guide. DETAILED DESCRIPTION

[0019] ​​​The embodiments of the present application will be described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them.

[0020] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or can exist simultaneously with a middle component. When a component is considered to be "provided on" another component, it can be directly provided on the other component or can exist simultaneously with a middle component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and the like used herein are for illustrative purposes only.

[0021] The embodiments of the present application provide a connector, comprising a housing having a first plug-in end and a second plug-in end in communication, a first terminal assembly plugged into the housing along the first plug-in end, and a second terminal assembly plugged into the housing along the second plug-in end. The connector further comprises a connecting assembly. One end of the connecting assembly is connected to the first terminal assembly, and the other end of the connecting assembly is connected to the second terminal assembly. The connecting assembly comprises a third conductive piece and a sleeve assembly. One end of the third conductive piece is plugged into the first conductive piece, and the other end of the third conductive piece is connected to the second terminal assembly. The sleeve assembly comprises a pin structure and a receiving groove. The pin structure is plugged into the first conductive piece. The pin structure has a receiving groove inside, which receives the third conductive piece. The two third conductive pieces are arranged side by side, and a gap is formed between adjacent receiving grooves. The pin structure is arranged in the gap and arranged side by side with the row of pin structures.

[0022] By arranging the two third conductive pieces side by side in the receiving grooves of the sleeve assembly, and directly utilizing the gap between the adjacent receiving grooves, the pin structure and the third conductive piece are arranged side by side in the same horizontal cross-section. The gap on the sleeve assembly, which was originally used for insulating and isolating the two third conductive pieces, is converted into a functional area of the pin, without occupying additional cross-sectional space. The electrical connection of the conductive piece and the mechanical reinforcement of the pin coexist in the same longitudinal layer, rather than being stacked in multiple layers.

[0023] The receiving groove of the sleeve assembly wraps and fixes the third conductive piece, providing insulation protection. When the third conductive piece is a clamping piece with multiple pin structures, and the sheet-shaped pin is inserted into the first plug-in part (sheet-shaped pin) during insertion, the sheet-shaped pin spreads the pin structures. Since the pin structures are located in the receiving grooves, the receiving grooves are inserted into the pin structures. The electrical path of one of the connectors is connected to the third conductive piece through the insertion of the first terminal assembly and the third conductive piece, and the mechanical path of the connector is connected to the pin of the sleeve assembly through the insertion of the first terminal assembly. The electrical path and the mechanical path are connected by sharing the same insertion action, without the need for step-by-step operation.

[0024] Some embodiments of the present application will be described in detail with reference to the drawings. The following embodiments and features can be combined with each other in the case of no conflict.

[0025] Please refer to Figures 1-14 The embodiments of the present application provide a connector 100, which comprises a housing 10 having a first plug-in end 11 and a second plug-in end 12 in communication, a first terminal assembly 20 plugged into the housing 10 along the first plug-in end 11 and comprising a first conductive piece 21, and a second terminal assembly 30 plugged into the housing 10 along the second plug-in end 12. The connector 100 further comprises a connecting assembly 40. One end of the connecting assembly 40 is connected to the first terminal assembly 20, and the other end of the connecting assembly 40 is connected to the second terminal assembly 30. The connecting assembly 40 comprises a third conductive piece 41 and a sleeve piece 42. One end of the third conductive piece 41 is plugged into the first conductive piece 21, and the other end of the third conductive piece 41 is connected to the second terminal assembly 30. The sleeve piece 42 comprises a pin structure 421 and a receiving groove 422. The pin structure 421 is plugged into the first conductive piece 21. The pin structure 421 has the receiving groove 422 inside, which receives the third conductive piece 41. The two third conductive pieces 41 are arranged side by side, and a gap is formed between adjacent receiving grooves 422. The pin structure 421 is arranged in the gap and arranged side by side with the row of insertion structures.

[0026] The housing 10 has a first plug-in end 11 and a second plug-in end 12 opposite to each other.

[0027] The first terminal assembly 20 is arranged at the first plug-in end 11 of the housing 10 and comprises a first conductive piece 21 and a first insulating piece for fixed connection with the first conductive piece 21. The first conductive piece 21 comprises a first plug-in part 211 plugged into a female socket on the controller side and a second plug-in part 212 arranged inside the housing 10. The first insulating piece is a plug-in sleeve 22.

[0028] The second terminal assembly 30 is arranged at the second plug-in end 12 of the housing 10 and comprises a second conductive piece 31 and a second insulating piece for connection with a cable.

[0029] The connecting assembly 40 is arranged between the first terminal assembly 20 and the second terminal assembly 30 and comprises a third conductive piece 41 and a sleeve piece 42. The two ends of the third conductive piece 41 are respectively connected to the second plug-in part 212 of the first conductive piece 21 and the second conductive piece 31, forming a current path.

[0030] Further, the housing 10 is provided with an isolation structure, which physically isolates the first conductive piece 21 and the second conductive piece 31, ensures clear conduction path, and prevents short circuit.

[0031] The third conductive member 41 in the connecting assembly 40 is in the form of an elastic metal sheet, both ends of which are provided with clamping arms for elastically clamping the plug-in parts, and a convex point structure is arranged on the contact surface to enhance the contact stability.

[0032] The sleeve member 42 is an insulating body, which is provided with two opposite accommodating grooves 422 for limiting the third conductive member 41, and an insulating gap 423 is formed between the accommodating grooves 422, and a plug pin structure 421 is arranged in the insulating gap 423, which is used for plugging with the second plug-in part 212 of the first conductive member 21 to form an electrical connection.

[0033] In the embodiment, the sleeve member 42 in the connecting assembly 40 is an integrally formed structure, which is internally provided with a plurality of accommodating grooves 422 extending in the plug-in direction, and each accommodating groove 422 is used for fixing and covering one third conductive member 41 to form a mutually independent conductive channel. The insulating gap 423 is naturally formed between the adjacent accommodating grooves 422 due to the structural isolation requirement, which is essentially a non-conductive area and is used for realizing the electrical insulation between the conductive members. In order to improve the structural utilization rate, the plug pin structure 421 is arranged in the insulating gap 423 and is arranged side by side with the third conductive member 41 in the same horizontal section, so that the conductive connection path and the mechanical positioning structure are arranged in combination without additionally increasing the cross-sectional area of the connector 100, and the electrical performance and space compactness are considered. The above structure not only effectively improves the integration and insulation safety of the connector 100, but also simplifies the plug-in action and improves the assembly efficiency.

[0034] Preferably, there is no electrical connection between the plug pin structure 421 and the third conductive member 41, and only mechanical positioning or additional signal channels are used.

[0035] Further, the second terminal assembly 30 is connected with a cable, the conductor of which is arranged in the accommodating groove 422 of the sleeve member 42 and elastically press-bonded with the third conductive member 41 to complete the electrical connection.

[0036] The other end of the third conductive member 41 is connected with the second terminal assembly 30 in a pasting manner, wherein the pasting manner refers to a non-rigid connection structure, which is realized by means of elastic press-bonding, contact convex points or other ways that can realize stable conduction.

[0037] In an optional embodiment, the connector 100 further comprises a locking mechanism, which comprises: In the embodiment, the connector 100 further comprises a locking mechanism for realizing quick locking and releasing, which comprises a handle 50 and a locking guide 60, both of which are arranged on the outer surface of the housing 10 and work cooperatively to ensure the stable connection of the first terminal assembly 20 and the second terminal assembly 30 after the plug-in is completed.

[0038] The handle 50 is an arc-shaped structure with one end located at the first plug-in end 11, and is hinged or pivotally connected with the shell 10 through a rotating shaft or a rotating connector, so that it can rotate relative to the shell 10. The other end of the handle 50 extends to the second plug-in end 12 and abuts against the shell 10 in the locked state, forming a complete locking outer ring.

[0039] The locking guide 60 is arranged on the outer side of the shell 10 and is slidingly connected with the shell 10, preferably along the axial or plug-in direction of the shell 10. The front end of the locking guide 60 is inserted into the handle 50 in the locked state and further extends into the second plug-in end 12, abutting against the handle 50 and the shell 10 at the same time, thereby forming three-point positioning and compression in space.

[0040] In actual operation, when the user rotates the handle 50 from the initial position to the locking direction, the inclined surface or the limiting column of the handle 50 cooperates with the locking guide 60 and applies an axial compression force. Under the action of the compression force, the locking guide 60 elastically deforms and separates from the abutment state with the shell 10, overcomes the fitting resistance and slides forward until it enters the ejection state.

[0041] After the locking guide 60 is ejected, the locking guide 60 can be pushed along the sliding rail arrangement direction. The locking guide 60 moves forward along the sliding direction of the abutment member, enters the handle 50 and extends into the second plug-in end 12, and abuts against the limiting structure of the shell 10, thereby completing the locking operation. This process realizes the complete action flow of limiting-release-insertion by rotating the handle 50 to drive the locking guide 60, so that the first terminal assembly 20 and the second terminal assembly 30 are stably locked. The locking mechanism realizes quick locking and unlocking through the rotating-sliding cooperative action, improves the assembly efficiency and the operation feeling.

[0042] The third conductive member 41 can be an elastic needle structure, a fork spring structure, or a planar bump structure coated with conductive paste, to adapt to different current levels and corrosion resistance requirements.

[0043] According to the application space requirement, the shell 10 can be designed as a straight plug-in type or a bent type to meet the different direction layout of the controller and the battery pack. The shape of the shell 10 is different from that of the third conductive member 41.

[0044] The connector 100 assembly of the present application has simple and compact structure, realizes intermediate connection through the third conductive member 41, improves the contact reliability and assembly flexibility. In cooperation with the locking mechanism, the anti-vibration performance and operation convenience can be significantly improved, and it is suitable for large current connection requirements in various electric transportation and energy storage systems.

[0045] Specifically, the shell 10 is a double-layer structure. The shell 10 has an inner shell 13 and an outer shell 14. The inner shell 13 is internally provided with a first plug-in end 11 and a second plug-in end 12. The outer shell 14 is sleeved with the outer surface of the inner shell 13. The inner shell 13 is a shielding layer.

[0046] In an embodiment, the first conductive part 21 is a composite structure of a first plug-in part 211 and a second plug-in part 212. The two first plug-in parts 211 are arranged side by side and are plugged into the two accommodating grooves 422 arranged side by side. The two composite structures are respectively matched and plugged into the third conductive end and the plug pin structure 421 in the accommodating groove 422. The plug-in sleeve 22 includes an accommodating shell 222. Specifically, the accommodating shell 222 is internally provided with a limiting groove 221 corresponding to the number of the first plug-in part 211. The first plug-in part 211 passes through the limiting groove 221 and abuts against the accommodating shell 222.

[0047] The first plug-in part 211 includes a limiting part 2112 connected with a sheet-shaped plug pin 2111. The limiting part 2112 is located at the starting end of the plug-in position of the accommodating shell 222, and abuts against the accommodating groove 422 to fix one end of the sheet-shaped plug pin 2111.

[0048] The diameter of the middle part of the limiting groove 221 is smaller than the diameter of the two ends of the limiting groove 221. The diameter of the middle part of the limiting groove 221 is equal to or smaller than the thickness of the sheet-shaped plug pin 2111. When the sheet-shaped plug pin 2111 passes through the limiting groove 221, an interference fit is generated to realize clamping of the sheet-shaped plug pin 2111 by the limiting groove 221.

[0049] The sheet-shaped plug pin 2111 includes a second positioning structure 2113. The second positioning structure 2113 is integrally formed with the outer surface of the first plug-in part 211. The first plug-in part 211 is located on the side away from the adjacent first plug-in part 211.

[0050] Each first plug-in part 211 has the second positioning structure 2113. The second positioning structure 2113 protrudes from the outer surface of the sheet-shaped plug pin 2111. The two second positioning structures are symmetrically arranged. The second positioning structure 2113 abuts against the plug-in sleeve 22 along the plug-in direction.

[0051] The sheet-shaped plug pin 2111 is provided with a contraction groove 215. The contraction groove 215 is in communication with the second positioning structure 2113.

[0052] When the first plug-in part 211 is inserted into the limiting groove 221, the plug-in sleeve 22 applies a pressing force to the second positioning structure 2113. The second positioning structure 2113 is contracted to be inserted into the plug-in sleeve 22 and abuts against the accommodating shell 222 along the plug-in direction of the second positioning structure 2113.

[0053] The second plug-in part 212 is arranged side by side with the first plug-in part 211. The second plug-in part 212 is plugged with the pin structure 421. The second plug-in part 212 is provided with a plug-in part matched with the pin structure 421, and a plug hole is formed in the plug-in part to be plugged with the pin structure 421. The second plug-in part 212 is located between two first plug-in parts 211.

[0054] The first conductive part 21 comprises a third positioning structure 2121 which is integrally formed with the outer surface of the second plug-in part 212. The third positioning structure 2121 protrudes from the outer surface of the second plug-in part 212. The third positioning structure 2121 is located on a vertical surface. The vertical surface is a surface perpendicular to the adjacent surface of the first plug-in part 211.

[0055] The second positioning structure 2113 is located on the outer surface of the sheet-shaped pin 2111 away from the third positioning structure 2121 located on the vertical surface. The second positioning structure 2113 cooperates with a limiting groove 221 of the plug-in sleeve 22 to prevent loosening in the plug-in direction. The third positioning structure 2121 forms a latching structure with another limiting groove 221 of the plug-in sleeve 22 to prevent circumferential rotation. The second positioning structure 2113 and the third positioning structure 2121 combine to form a mechanical positioning limit in a 360° space, so that the first terminal assembly 20 cannot slide forward and backward or rotate and tilt in the sleeve part 42. This facilitates subsequent stable plug-in.

[0056] The diameter of the limiting groove 221 in the middle is smaller than the diameter of the limiting groove 221 at both ends. The diameter of the limiting groove 221 in the middle is equal to or smaller than the thickness of the sheet-shaped pin 2111, so that when the plug-in part passes through the limiting groove 221, an interference fit is generated to achieve clamping of the plug-in part by the limiting groove 221.

[0057] A contraction groove 215 is formed on the plug-in part, and the contraction groove 215 is in communication with the third positioning structure 2121.

[0058] When the second plug-in part 212 is inserted into the plug-in sleeve 22, the plug-in sleeve 22 applies a pressing force to the third positioning structure 2121. The third positioning structure 2121 is contracted into the contraction groove 215, so that the second plug-in part 212 passes through the limiting groove 221 in the middle. The third positioning structure 2121 is rebounded to abut against the limiting groove 221 in the middle according to the rebounding force, so that the second plug-in part 212 abuts against the containing shell 222 in the plug-in direction of the second positioning structure 2113.

[0059] The first terminal assembly 20 further comprises a sealing member 23. The sealing member 23 is integrally formed with the first plug-in part 211 and the second plug-in part 212 respectively. The sealing member 23 is close to the starting end of the limiting groove 221 through which the first conductive member 21 passes. The sealing member 23 is in interference fit with the limiting groove 221 to isolate the external environment and the internal environment of the connector 100.

[0060] When the connector 100 is in the form of a straight plug-in connector 100, the installation method of the first terminal assembly 20 is as follows: first, assemble the accommodating shell 222, and fit the sealing member 23 to the first plug-in part 211, and push the first plug-in part 211 with the sealing member 23 through the limiting groove 221 in the accommodating shell 222 to form abutment with the limiting groove 221. Then, the crimped terminal after crimping is put into one end of the terminal protection shell to assemble the second plug-in part 212. The other end of the terminal protection shell is matched with the pin structure 421. And the sealing member 23 is fitted to the second plug-in part 212, the second plug-in part 212 with the sealing member 23 is inserted into the accommodating shell 222, and the limiting member 2112 of the first plug-in part 211 is locked with the sheet-shaped pin 2111.

[0061] When the connector 100 is in the form of a straight plug-in connector 100, the installation method of the first terminal assembly 20 is as follows: first, assemble the accommodating shell 222, and fit the sealing member 23 to the first plug-in part 211, and push the first plug-in part 211 with the sealing member 23 through the limiting groove 221 in the accommodating shell 222 to form abutment with the limiting groove 221. Then, the crimped terminal after crimping is put into one end of the terminal protection shell to assemble the second plug-in part 212. The other end of the terminal protection shell is matched with the pin structure 421. And the sealing member 23 is fitted to the second plug-in part 212, the second plug-in part 212 with the sealing member 23 is inserted into the accommodating shell 222, and the limiting member 2112 of the first plug-in part 211 is locked with the sheet-shaped pin 2111.

[0062] The second terminal assembly 30 comprises a second conductive member 31 and a sealing shell 32. The second conductive member 31 is a cable with an electrical connector. The second conductive member 31 passes through the sealing shell 32, and the second conductive member 31 is connected with the sealing shell 32. After the second terminal assembly 30 is plugged with the third conductive member 41, the sealing shell 32 is connected with the shell 10, and the sealing shell 32 covers one end of the shell 10. The second terminal assembly 30 is a prior art, and thus will not be described here.

[0063] The connector 100 further comprises a connecting assembly 40, which comprises a third conductive member 41 and a fitting member 42. One end of the third conductive member 41 is plugged with the first terminal assembly 20, and the other end of the third conductive member 41 is connected with the second terminal assembly 30.

[0064] The fitting member 42 has a pin structure 421 and an accommodating groove 422. The pin structure 421 is plugged with the first terminal assembly 20. The accommodating groove 422 has an accommodating third conductive member 41 inside. The fitting member 42 wraps the third conductive member 41. The two third conductive members 41 are arranged side by side, and an insulation gap 423 is formed between adjacent accommodating grooves 422. The pin structure 421 is arranged in the insulation gap 423 and arranged side by side with the row of plug-in structures.

[0065] The pin structure 421 is integrally formed with the sleeve 42 and vertically arranged in the insulating gap 423 between the third conductive members 41. The second plug-in part 212 of the first conductive member 21 is provided with a slot or hole position, and the pin structure 421 is directly inserted. Since the second plug-in part 212 and the pin structure 421 are auxiliary positioning structures without electrical function, a larger insertion force can be formed during plugging, realizing positioning, support and anti-torsion. The purpose of the pin structure 421 and the sleeve 42 is to realize mechanical anti-rotation positioning and reduce the contact surface micro-motion of the connector 100 in a vibrating environment.

[0066] The sleeve 42 is integrally formed, the plug-in direction of the pin structure 421 is the same as the plug-in direction of the third conductive member 41, and the third conductive member 41 abuts against the accommodating groove 422 along the plug-in direction.

[0067] The outer surface of the sleeve 42 is provided with a first positioning structure 424 in the circumferential direction, which abuts against the shell 10 in the circumferential direction to fix the sleeve 42 and ensure the accuracy of the plug-in position. The first positioning structure 424 is a raised rib or buckle structure on the outer wall of the sleeve 42, which is distributed in the circumferential direction.

[0068] The inner wall of the shell 10 is provided with a corresponding limiting clamping groove or clamping table, and the sleeve 42 is clamped to the inner wall after being inserted.

[0069] In an embodiment, the first positioning structure 424 can be a discontinuous structure, such as a local reinforcing rib located on both sides of the pin structure 421 or the edge of the accommodating groove 422. After installation, the connection assembly 40 cannot move inside the shell 10, and the plug-in depth and angle are accurately controlled.

[0070] In an embodiment, when the first positioning structure 424 is discontinuous, the first positioning structure 424 is located at the corners of the two side-by-side accommodating grooves 422 and the pin structure 421, respectively.

[0071] The third conductive member 41 includes a first plug-in end 11 and a second plug-in end 12. The first contact end 411 is plugged with the first conductive member 21. The second contact end 412 is plugged with the second terminal assembly 30. The first contact end 411 is plugged with the third conductive member 41, the second contact end 412 is attached to the second terminal assembly 30, and the second contact end 412 is provided with a protruding structure 413 attached to the second terminal assembly 30.

[0072] In addition, the dimple structure can also adapt to the slight deformation of the second terminal assembly 30, further improving the contact stability in a vibrating environment. This attachment method is particularly suitable for the application scenarios of large current, high frequency plugging and severe vibration conditions in new energy vehicle connectors 100.

[0073] In an embodiment, one end of the third conductive member 41 is provided with a first contact end 411, which is a plug-in structure. The first contact end 411 can adopt a pin hole structure, an elastic bayonet structure, or a sheet-shaped contact spring. The first plug-in part 211 of the first conductive member 21 is preferably a sheet-shaped plug-in pin 2111, which is directly inserted into the pin hole of the third conductive member 41, so that the two side springs are clamped. The plug-in process is supported by the inner wall of the sleeve member 42 on the third conductive member 41, preventing deformation during plug-in. The plug-in depth of the first plug-in part 211 is constrained by the limiting groove 221 (inside the plug-in sleeve 22), and the sheet-shaped plug-in pin 2111 cannot be loosened after being inserted into place. This part forms a reliable main electrical path.

[0074] The other end of the third conductive member 41 is a second contact end 412, which is preferably provided with a planar contact area, and the planar contact area is provided with a micro-convex structure. The planar contact area is plugged with the second conductive member 31, and the micro-convex structure is attached to the second conductive member 31.

[0075] The planar contact area is plugged with the second conductive member 31, and the second conductive member 31 is partially located in the accommodating groove 422. In particular, in order to improve the electrical reliability and anti-micro-motion performance of the contact interface, the planar contact area of the second contact end 412 is provided with a pitted structure. The pitted area is a rough surface composed of a plurality of small convex points, which is usually made by stamping, die casting or surface etching. This structure can enhance the friction between the micro-surfaces and the actual contact area during the contact process, effectively reducing the contact resistance.

[0076] The installation method of the connector 100 is to install the assembled connection assembly 40 into the shell 10, and then connect the second terminal assembly 30 with the second contact end 412 in the connection assembly 40, so that the electrical connection head of the second conductive member 31 of the second terminal assembly 30 is located in the accommodating groove 422, and the sealing shell 32 is arranged at the opening of the second plug-in end 12 of the shell 10 to seal one end of the shell 10. Finally, the first plug-in part 211 and the second plug-in part 212 of the first terminal assembly 20 are matched with the plug-in part of the second contact end 412 of the connection assembly 40, and the sleeve member 42 of the first terminal assembly 20 is arranged at the opening of the first contact end 411 of the shell 10 to seal the shell 10. At this time, the openings of the shell 10 are completely blocked, forming a sealed cavity. In addition, a locking handle 50 is arranged outside the shell 10, one end of which is arranged at the first contact end 411 of the shell 10, and the other end is arranged at the second contact end 412 of the shell 10 by rotating relative to the shell 10, and the handle 50 is in abutment with the second contact end 412 of the shell 10 through the locking guide 60. Further fix the connection between the first terminal assembly 20 and the connection assembly 40.

[0077] In this way, the two third conductive members 41 are arranged side by side in the accommodating grooves 422 of the sleeve member 42. The gap between the adjacent accommodating grooves 422 is directly used to arrange the pin structures 421 and the third conductive members 41 side by side in the same horizontal section. The gap originally used to insulate the two third conductive members 41 on the sleeve member 42 is converted into a functional area of the pins, without occupying additional sectional space. The electrical connection of the conductive members and the mechanical reinforcement of the pins coexist in the same longitudinal layer instead of being stacked in multiple layers.

[0078] The accommodating grooves 422 of the sleeve member 42 wrap and fix the third conductive members 41, providing insulation protection. When the third conductive members 41 are clamping members of multiple pin structures, the sheet-shaped pins 2111 spread the pin structures when they are inserted with the first connector. Since the pin structures are located in the accommodating grooves 422, the accommodating grooves 422 are inserted with the pin structures, and the electrical path first terminal assembly 20 of one of the connectors 100 is inserted and connected with the third conductive members 41, and the mechanical path first terminal assembly 20 of the connector 100 is inserted and connected with the pin of the sleeve member 42. The electrical path and the mechanical path are connected through the same insertion operation, without step-by-step operation.

[0079] The above only describes the embodiments of the present application, and it should be pointed out that those skilled in the art can make improvements without departing from the creative concept of the present application, and these improvements are within the protection scope of the present application.

Claims

1. A connector comprising a housing having a first plug end and a second plug end in communication, a first terminal assembly plugged into the housing along the first plug end, and a second terminal assembly plugged into the housing along the second plug end, characterized in that: The connector further comprises: A connecting assembly, one end of which is connected to the first terminal assembly and the other end of which is connected to the second terminal assembly, the connecting assembly comprising: A third conductive member, one end of which is plugged into the first terminal assembly and the other end of which is fitted and connected to the second terminal assembly; a socket having a pin structure for plugging with the first terminal assembly and an accommodating groove for accommodating a third conductive member, and wrapping the third conductive member; The third conductive members are arranged adjacent to each other, and an insulating gap is formed between adjacent accommodating grooves. The pin structure is arranged in the insulating gap and arranged side by side with the pin structure.

2. The connector according to claim 1, wherein: The plugging direction of the plug-in pin structure is the same as the plugging direction of the third conductive member, and the third conductive member abuts against the accommodating groove along the plugging direction.

3. The connector according to claim 1, wherein: A first positioning structure is circumferentially provided on the outer surface of the sleeve, and the first positioning structure abuts against the circumference of the shell to fix the sleeve and ensure the accuracy of the plug-in position.

4. The connector according to claim 3, wherein: When the first positioning structure is discontinuous, the first positioning structure is respectively located at the corners of two side-by-side accommodating grooves and at the connection of the pin structure.

5. The connector according to claim 1, wherein: The first terminal assembly includes a first conductive member and a plug sleeve plugged into the connecting assembly, a limiting groove is defined in the plug sleeve, and the first conductive member passes through the limiting groove; The first conductive member includes: a first plug-in portion, wherein the two first plug-in portions are respectively provided with the limiting groove and plugged into the third conductive member; A second plug-in portion, arranged side by side with the first plug-in portion and plugged into the pin structure; a second positioning structure integrally formed with the outer surface of the first plug-in portion, the first plug-in portion being located on a side away from the adjacent first plug-in portion, and the second positioning structure being symmetrically arranged, and the second positioning structure abutting against the plug sleeve along the plugging direction; a third positioning structure integrally formed with the outer surface of the second plug-in portion and arranged perpendicular to the second positioning structure, wherein the third positioning structure abuts against the plug-in sleeve along the plug-in direction; The second positioning structure and the third positioning structure are combined to form a circumferential positioning structure for the first conductive member and the plug sleeve.

6. The connector according to claim 5, wherein: The first plug-in portion and the second plug-in portion are both provided with a contraction groove, and the contraction groove is communicated with the second positioning structure and the third positioning structure respectively; When the first plug-in portion and the second plug-in portion are respectively inserted into the plug-in sleeve, the plug-in sleeve applies extrusion force to the second positioning structure and the third positioning structure respectively, and the second positioning structure and the third positioning structure are respectively contracted into the contraction groove to insert the plug-in sleeve and form abutment with the plug-in sleeve in the plug-in direction.

7. The connector according to claim 5, wherein: The first terminal assembly further includes: The sealing member is integrally formed with the first plug-in portion and the second plug-in portion respectively. The sealing member is close to the starting end of the limiting groove where the first conductive member passes through, and the sealing member is interference fit with the limiting groove to isolate the external environment from the internal environment of the connector.

8. The connector according to claim 5, wherein: The third conductive member comprises: a first contact end plugged into the first conductive member and a second contact end plugged into the second terminal assembly, the first contact end being in communication with the second contact end; The first contact end is plugged into the third conductive member, the second contact end is fitted with the second terminal assembly, and the second contact end is provided with a protruding structure fitted with the second terminal assembly.

9. The connector according to claim 1, wherein: The connector further comprises: a handle mounted on the outer surface of the housing and rotatable relative to the housing, with one end of the handle located at the first plug-in end and the other end of the handle located at the second plug-in end in a locked state and abutting against the housing; A locking guide is installed on the outer surface of the shell, is slidably connected to the shell, and abuts against the shell, wherein, in the locked state, the locking guide is inserted into the handle, and the locking guide extends into the second plug-in end, abutting against the handle and the shell respectively.

10. The connector according to claim 1, wherein: The connector may be a bent connector or a straight connector.

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