A charging plug-in assembly

Abstract

The application discloses a charging plug-in assembly, aiming at providing a charging plug-in assembly with difficult polarity reverse connection. It comprises a socket and a plug, the socket is provided with a slot matched with the plug, the plug is connected with the socket through the slot, the slot is provided with a conductive column one, a conductive groove one and a plurality of detection grooves, the plug is provided with a conductive groove two matched with the conductive column one, a conductive column two matched with the conductive groove one and a plurality of detection needles matched with the detection grooves, one end of the conductive column one is located in the slot, the other end of the conductive column one and the end of the conductive column two are both provided with a limiting structure one, the conductive column one is limited in the bottom of the slot through the limiting structure one and is fixedly connected with the socket, the conductive column two is limited in the plug through the limiting structure one, and the detection needle and the conductive column two are both fixedly connected with the plug. The application has the advantages of reducing the use risk, guaranteeing the safety and difficult polarity reverse connection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plug-in connectors, and particularly to a charging plug-in assembly. BACKGROUND

[0002] Chargers are generally required to realize the plug-in connection of the circuit through the cooperation of the plug and the socket. With the progress of the times, more and more electrical equipment is used, so that the use of plugs and sockets is everywhere, such as various household appliances at home, large equipment in factories, and even various electric vehicles. Especially various electric vehicles, sufficient electric energy can drive the vehicle to run, and when the electric energy is exhausted, it needs to be charged. At this time, the battery needs to be charged through the matching of the plug and the socket.

[0003] A charging female socket with power-off function is disclosed in Chinese Patent Publication No. CN214505963U, authorized on October 26, 2021. It includes a female socket body and a power-off assembly. The bottom end of the female socket body is provided with a plug-in slot, and the bottom center of the plug-in slot is provided with a plug-in column. A plurality of plug-in interfaces are provided on the plug-in column, and a conductive clamp is provided in the plug-in interface. One end of the conductive clamp is located in the plug-in interface, and the other end of the conductive clamp penetrates the top end of the female socket body and is located outside the female socket body. The power-off assembly includes a shell, a metal sheet one, and a plastic part. The top end of the female socket body is detachably installed on one side of the shell, and the metal sheet one is detachably installed on the other side of the shell. One end of the metal sheet one is located in the shell and is provided with a static contact point. The other end of the metal sheet one penetrates the shell and is located outside the shell. A metal sheet two is provided in the shell. The conductive clamp in one of the plug-in interfaces penetrates the bottom of the shell and is electrically connected to one end of the metal sheet two. The other end of the metal sheet two is provided with a movable contact point corresponding to the static contact point. The upper half of the plastic part is located in the shell and connected to the metal sheet two. The upper half of the plastic part in the shell is elastically connected to the top of the shell. The lower half of the plastic part penetrates the bottom of the shell and the top end of the female socket body and is located in the plug-in slot. The plastic part is slidably connected to the shell and the female socket body. The plastic part is located on the side surface of the plug-in column.

[0004] In the above-mentioned patent, the shape and position arrangement of the two plug-in slots and the two plug-in interfaces are easy to cause the positive and negative poles of the plug and the socket to be connected in reverse. It needs to be tried many times to insert the plug into the socket, which is very inconvenient to use. SUMMARY

[0005] The present application is to overcome the deficiency that the polarity is easy to be connected in reverse when the plug and the socket are plugged in the prior art, and provides a charging plug-in assembly with polarity that is not easy to be connected in reverse.

[0006] In order to achieve the above object, the present application adopts the following technical solutions:

[0007] The charging plug-in assembly comprises a socket and a plug, the socket is provided with a socket slot matched with the plug, the plug is connected with the socket through the socket slot, the socket slot is provided with a conductive column I, a conductive slot I and a plurality of detection slots, the plug is provided with a conductive slot II matched with the conductive column I, a conductive column II matched with the conductive slot I and a plurality of detection needles matched with the detection slots, one end of the conductive column I is located in the socket slot, the other end of the conductive column I and the end of the conductive column II are both provided with a limiting structure I, the conductive column I is limited in the bottom of the socket slot through the limiting structure I and is fixedly connected with the socket, the conductive column II is limited in the plug through the limiting structure I, and the detection needle and the conductive column II are both fixedly connected with the plug.

[0008] The socket is provided with a socket slot matched with the plug, the plug is connected with the socket through the socket slot, the socket slot is provided with a conductive column I, a conductive slot I and a plurality of detection slots, the plug is provided with a conductive slot II matched with the conductive column I, a conductive column II matched with the conductive slot I and a plurality of detection needles matched with the detection slots, one end of the conductive column I is located in the socket slot, the other end of the conductive column I and the end of the conductive column II are both provided with a limiting structure I, the conductive column I is limited in the bottom of the socket slot through the limiting structure I and is fixedly connected with the socket, the conductive column II is limited in the plug through the limiting structure I, and the detection needle and the conductive column II are both fixedly connected with the plug. The detection slots can quickly detect the function state of the charger, the detection slots also have conductive columns, so that the detection needles entering the detection slots can accurately and quickly detect the fault of the charger, so that the charger can be reasonably and scientifically used, the use risk is reduced, and safety is ensured; when plugging, only the conductive column I on the socket and the conductive slot II on the plug are matched, and the conductive slot I on the socket and the conductive column II on the plug are matched, so that the plug can be accurately plugged into the socket without multiple attempts, and the purpose of not being easily reversed in polarity is achieved.

[0009] As preferred, the structure of the conductive column one is same as that of the conductive column two, one end edge of the conductive column one is provided with a guide inclined plane one, which plays a good guiding role for the insertion of the conductive column one into the conductive groove two, the other end of the conductive column one is provided with a terminal block one, which is convenient for wiring with the wire in the external circuit, so as to realize the line conduction of the conductive column one, the bottom of the insertion groove and the plug are both provided with a mounting seat one, the conductive column one and the conductive column two are both limited on the mounting seat one through the corresponding limiting structure one and fixedly connected with the terminal block one through the mounting seat one, the conductive column one is fixedly connected with the socket through injection molding and forms an integral, the conductive column two is fixedly connected with the plug through injection molding and forms an integral. The conductive column one and the conductive column two are both first limited on the mounting seat one through the corresponding limiting structure one, and then fixedly connected with the socket and the plug respectively through injection molding, on the one hand, it is convenient for the preliminary limiting of the conductive column one and the conductive column two during injection molding, improves the position accuracy during injection molding, and is convenient for injection molding, on the other hand, it is conducive to improving the connection firmness of the conductive column one and the conductive column two, is convenient for repeated plugging and unplugging, and ensures the firmness of the wiring, prolongs the service life.

[0010] As preferred, the limiting structure one comprises a longitudinal limiting block and a transverse limiting elastic sheet, the mounting seat one is provided with a mounting hole, the other end of the conductive column one is fixedly connected with the terminal block one after penetrating through the mounting hole, the longitudinal limiting block is fixedly connected with the side surface of the conductive column one and forms an integral, one end of the mounting hole is close to the terminal block one and is provided with a limiting groove one matched with the longitudinal limiting block, the other end of the mounting hole is away from the terminal block one and is provided with a clamping groove matched with the transverse limiting elastic sheet, the clamping groove is located on the side wall of the mounting hole and communicates with the mounting hole, one end of the transverse limiting elastic sheet is fixedly connected with the side wall of the conductive column one, the other end of the transverse limiting elastic sheet is limited in the clamping groove. The longitudinal limiting block is matched with the limiting groove one at the end of the mounting hole close to the terminal block one, and the other end of the transverse limiting elastic sheet is limited in the clamping groove at the same time, and through the injection molding process, it is conducive to improving the stability of the longitudinal position of the conductive column one and the conductive column two in the repeated plugging and unplugging process of the plug and the socket, so as to prevent the wiring from being excessively pulled and causing poor contact, and at the same time, it is conducive to ensuring the waterproof and dustproof performance of the inside of the plug or the socket, so as to comprehensively improve the conduction performance of the line.

[0011] As preferred, one side of the transverse limiting elastic sheet is close to the clamping groove, the other side of the transverse limiting elastic sheet is away from the clamping groove, the side of the transverse limiting elastic sheet close to the clamping groove is protruded to form an arc structure, the conductive column is provided with a rectangular hole matched with the transverse limiting elastic sheet, one end of the rectangular hole is close to the wiring block one, the other end of the rectangular hole is away from the wiring block one, one end of the transverse limiting elastic sheet is fixedly connected with the other end of the rectangular hole away from the wiring block one and forms an integral, the other end of the transverse limiting elastic sheet is in contact with the bottom of the clamping groove. The design of the transverse limiting elastic sheet, on the one hand, cooperates with the longitudinal limiting block to improve the stability of the longitudinal position of the conductive column one and the conductive column two, on the other hand, the elastic force of the transverse elastic sheet and the close contact with the bottom of the clamping groove are beneficial to improve the stability of the transverse position of the conductive column one and the conductive column two, and further improve the connection firmness of the conductive column one and the conductive column two.

[0012] As preferred, one side of the transverse limiting elastic sheet is close to the clamping groove, the other side of the transverse limiting elastic sheet is away from the clamping groove, the conductive column is provided with a rectangular hole matched with the transverse limiting elastic sheet, one end of the rectangular hole is close to the wiring block one, the other end of the rectangular hole is away from the wiring block one, one end of the transverse limiting elastic sheet is fixedly connected with the other end of the rectangular hole away from the wiring block one and forms an integral, the other end of the transverse limiting elastic sheet is in contact with the bottom of the clamping groove. The design of the transverse limiting elastic sheet, on the one hand, cooperates with the longitudinal limiting block to improve the stability of the longitudinal position of the conductive column one and the conductive column two, on the other hand, the elastic force of the transverse elastic sheet and the close contact with the bottom of the clamping groove are beneficial to improve the stability of the transverse position of the conductive column one and the conductive column two, and further improve the connection firmness of the conductive column one and the conductive column two.

[0013] As preferred, the structure of the conductive groove one is the same as that of the conductive groove two, the same clamping pieces are arranged in the conductive groove one and the conductive groove two, one end of the clamping piece is provided with a clamping part matched with the conductive column two, the other end of the clamping piece is provided with a wiring block two, the wiring block two is convenient for being connected with the wire in the external circuit to realize the line conduction of the clamping block, the bottom of the conductive groove one is fixedly provided with a mounting seat two, the clamping piece is provided with a limiting structure two, the clamping piece is limited on the mounting seat two through the limiting structure two and sequentially penetrates the bottom of the conductive groove one and the mounting seat two and is fixedly connected with the wiring block two, the clamping piece in the conductive groove one is fixedly connected with the socket through injection and forms an integral, the clamping piece in the conductive groove two is fixedly connected with the plug through injection and forms an integral. The clamping pieces in the conductive groove one and the conductive groove two are first limited on the mounting seat two through the corresponding limiting structure two, and then are fixedly connected with the socket and the plug through injection, on the one hand, the preliminary limiting of the clamping piece is convenient for injection, the position accuracy during injection is improved, and injection is convenient, on the other hand, the connection firmness of the clamping piece is improved, repeated plugging and unplugging is convenient, the firmness of the connection is ensured, and the service life is prolonged.

[0014] As a preferred, the clamping piece includes a metal sheet, the metal sheet is limited in the second mounting seat by the limiting structure two, two clamping pieces are provided on the metal sheet and are symmetrically distributed left and right with the metal sheet as the center and are located on one side of the metal sheet, one end of the clamping piece penetrates the bottom of the conductive groove one and the second mounting seat in sequence and is fixedly connected with the metal sheet and forms an integral whole, the clamping part is located in the region formed by the other end of the two clamping pieces, one end of the clamping part is close to the metal sheet, the other end of the clamping part is away from the metal sheet, the width of the clamping part gradually decreases from the one end close to the metal sheet to the other end, thereby the clamping effect on the conductive column one or the conductive column two is good and the conduction of the circuit is facilitated, the other side of the metal sheet corresponding to the other side is provided with a connecting block, the metal sheet penetrates the second mounting seat through the connecting block and is fixedly connected with the connecting block two and forms an integral whole, the limiting structure two is located at one end of the clamping part close to the metal sheet and is located at the side of the clamping piece.

[0015] As a preferred, one side of the clamping piece is located in the clamping part, the other side of the clamping piece corresponding to the other side is located outside the clamping part, the other end of the clamping piece is folded to form an inclined surface to the side outside the clamping part, the inclined surface is located on one end of the clamping part away from the metal sheet, the opening end of the conductive groove one is fixedly provided with a limiting strip in contact with the inclined surface, one end of the inclined surface is fixedly connected with the clamping piece and forms an integral whole, one side of the inclined surface is located in the clamping part, the other side of the inclined surface corresponding to the other side is located outside the clamping part, the other end of the inclined surface is folded to form an inclined surface to the side inside the clamping part, the opening end of the conductive groove one is fixedly provided with a limiting strip in contact with the inclined surface, one end of the inclined surface is fixedly connected with the clamping piece and forms an integral whole, the other end of the inclined surface is provided with a guide inclined surface two at the edge, and the guide inclined surface two is located in the clamping part. The inclined surface and the guide inclined surface two play a good guiding role for the conductive column one or the conductive column two inserted into the clamping part between the two clamping pieces, thereby being easy to plug and unplug.

[0016] As another preferred, one side of the clamping piece is located in the clamping part, the other side of the clamping piece corresponding to the other side is located outside the clamping part, the other end of the clamping piece is folded to form an inclined surface to the side outside the clamping part, the inclined surface is located on one end of the clamping part away from the metal sheet, one end of the inclined surface is fixedly connected with the clamping piece and forms an integral whole, one side of the inclined surface is located in the clamping part, the other side of the inclined surface corresponding to the other side is located outside the clamping part, the other end of the inclined surface is folded to form an inclined surface to the side inside the clamping part, the opening end of the conductive groove one is fixedly provided with a limiting strip in contact with the inclined surface, one end of the inclined surface is fixedly connected with the clamping piece and forms an integral whole, the other end of the inclined surface is provided with a guide inclined surface two at the edge, and the guide inclined surface two is located in the clamping part. The inclined surface and the guide inclined surface two play a good guiding role for the conductive column one or the conductive column two inserted into the clamping part between the two clamping pieces, thereby being easy to plug and unplug.

[0017] As preferred, the limiting structure two comprises two limiting plates and two limiting pieces, the two limiting plates are respectively located on the left and right sides of the metal sheet and form a U-shaped structure with the metal sheet, one side edge of the limiting plate is fixedly connected with the metal sheet to form an integral body, the other side edge of the limiting plate corresponding to the clamping piece is fixedly connected to form an integral body and forms a T-shaped structure, one side of the mounting seat two is close to the wiring block two, the other side of the mounting seat two corresponding to the wiring block two is away from the wiring block two, the side of the mounting seat two close to the wiring block two is provided with a limiting groove two matched with the U-shaped structure, the bottom of the limiting groove two is provided with a through hole convenient for the two clamping pieces to penetrate, the through hole is communicated with the conductive groove one, the two limiting pieces are respectively located on the two clamping pieces, one end of the limiting piece is close to the limiting plate, the other end of the limiting piece is away from the limiting plate and is fixedly connected with the edge of the clamping piece to form an integral body, the bottom of the conductive groove one is provided with a limiting protrusion, the limiting protrusion is fixedly connected with the side wall of the conductive groove one, the end of the limiting piece close to the limiting plate is located on the limiting protrusion, and the width between the two limiting pieces gradually decreases from one end away from the limiting plate to the other end. The synergistic effect of the limiting strip, the limiting piece and the limiting plate can improve the position stability of the clamping piece during repeated plugging and unplugging of the plug and the socket; the width between the two limiting pieces gradually decreases from one end to the other end, the conductive column one or the conductive column two is clamped in the corresponding clamping part, which further improves the clamping effect of the clamping piece on the conductive column one or the conductive column two through the clamping part, and the limiting protrusion also plays a limiting role on the conductive column one or the conductive column two.

[0018] As preferred, the plug-in slot is provided with a guide block, the guide block is fixedly connected with the bottom of the plug-in slot and forms an integral body, which is conducive to improving the strength and facilitating the repeated plugging and unplugging of the plug and the socket, the guide block is located on the side of the conductive column one, the plug is provided with a guide groove matched with the guide block, the guide groove is located on the side of the conductive groove two, the conductive groove one and the plurality of detection grooves are located on the guide block, and the conductive column two and the plurality of detection pins are located in the guide groove. The guide block and the guide groove are matched, which is conducive to improving the connection strength of the plug and the socket.

[0019] As preferred, the guide block is L-shaped, the detection grooves are four in total, the four detection grooves are evenly distributed in a straight line on one side of the guide block, the conductive groove one is located on the other side of the guide block, and the conductive column one is located in the L-shaped structure of the guide block. The guide block is L-shaped and matched with the guide groove, which has a foolproof effect and is more conducive to preventing the polarity from being easily reversed.

[0020] The beneficial effects of the present application are: reducing the use risk, ensuring safety; improving the position accuracy of the clamping piece, the first conductive column and the second conductive column during injection molding; facilitating injection molding; being conducive to improving the connection firmness of the clamping piece, the first conductive column and the second conductive column, facilitating repeated plugging and unplugging, and ensuring the firmness of the wiring, prolonging the service life; being conducive to ensuring the waterproof and dustproof performance inside the plug or the socket, thereby comprehensively improving the conduction performance of the circuit; being easy to plug and unplug; being conducive to improving the connection strength of the plug and the socket; having a foolproof effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the present application;

[0022] Figure 2 is a structural schematic diagram of the socket;

[0023] Figure 3 is a structural schematic diagram of the plug;

[0024] Figure 4 is a left view of Figure 2 ;

[0025] Figure 5 is a right view of Figure 3 ;

[0026] Figure 6 is an exploded view of the socket;

[0027] Figure 7 is an exploded view of the plug;

[0028] Figure 8 is a sectional view of A-A in Figure 4 ;

[0029] Figure 9 is a structural schematic diagram of the inside of the socket;

[0030] Figure 10 is a structural schematic diagram of the inside of the plug;

[0031] Figure 11 is a structural schematic diagram of the inside of the socket after removing the first conductive column and the clamping piece;

[0032] Figure 12 is another structural schematic diagram of the clamping piece.

[0033] In the figure: 1. socket, 2. plug, 3. slot, 4. conductive column one, 5. conductive groove one, 6. detection groove, 7. conductive groove two, 8. conductive column two, 9. detection needle, 10. limiting structure one, 11. guide inclined surface one, 12. wiring block one, 13. mounting seat one, 14. longitudinal limiting block, 15. transverse limiting elastic sheet, 16. mounting hole, 17. limiting groove one, 18. clamping groove, 19. rectangular hole, 20. clamping piece, 21. clamping part, 22. wiring block two, 23. mounting seat two, 24. limiting structure two, 25. metal sheet, 26. clamping sheet, 27. limiting strip, 28. bevel, 29. guide inclined surface two, 30. limiting plate, 31. limiting sheet, 32. limiting groove two, 33. limiting convex block, 34. guide block, 35. guide groove, 36. inclined surface. DETAILED DESCRIPTION

[0034] The application will be further described below in conjunction with the drawings and specific embodiments.

[0035] As Figure 1 , Figure 2 and Figure 3 described in the embodiments, a charging plug-in assembly includes a socket 1 and a plug 2, as shown in Figure 4 , Figure 5 , Figure 6 and Figure 7 , the socket 1 is provided with a slot 3 matched with the plug 2, the plug 2 is connected with the socket 1 through the slot 3, the slot 3 is provided with a conductive column one 4, a conductive groove one 5 and a plurality of detection grooves 6, the plug 2 is provided with a conductive groove two 7 matched with the conductive column one 4, a conductive column two 8 matched with the conductive groove one 5 and a plurality of detection needles 9 matched with the detection grooves 6 one by one, one end of the conductive column one 4 is located in the slot 3, the other end of the conductive column one 4 and the end of the conductive column two 8 are both provided with a limiting structure one 10, the conductive column one 4 is limited in the bottom of the slot 3 through the limiting structure one 10 and is fixedly connected with the socket 1, the conductive column two 8 is limited in the plug 2 through the limiting structure one 10, and the detection needle 9 and the conductive column two 8 are both fixedly connected with the plug 2.

[0036] As Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown in the drawings, the structure of the conductive column one 4 is the same as that of the conductive column two 8, one end edge of the conductive column one 4 is provided with a guide inclined plane one 11, the other end of the conductive column one 4 is provided with a terminal block one 12, the bottom of the slot 3 and the plug 2 are both provided with a mounting seat one 13, the conductive column one 4 and the conductive column two 8 are both limited on the mounting seat one 13 through corresponding limiting structures one 10 and fixedly connected with the terminal block one 12 through the mounting seat one 13, the conductive column one 4 is fixedly connected with the socket 1 through injection molding and forms an integral whole, and the conductive column two 8 is fixedly connected with the plug 2 through injection molding and forms an integral whole.

[0037] As shown in the drawings, Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , the limiting structure one 10 comprises a longitudinal limiting block 14 and a transverse limiting spring piece 15, the mounting seat one 13 is provided with a mounting hole 16, the other end of the conductive column one 4 is fixedly connected with the terminal block one 12 after penetrating through the mounting hole 16, the longitudinal limiting block 14 is fixedly connected with the side surface of the conductive column one 4 and forms an integral whole, one end of the mounting hole 16 is close to the terminal block one 12 and is provided with a limiting groove one 17 matched with the longitudinal limiting block 14, the other end of the mounting hole 16 is away from the terminal block one 12 and is provided with a clamping groove 18 matched with the transverse limiting spring piece 15, the clamping groove 18 is located on the side wall of the mounting hole 16 and communicates with the mounting hole 16, one end of the transverse limiting spring piece 15 is fixedly connected with the side wall of the conductive column one 4, and the other end of the transverse limiting spring piece 15 is limited in the clamping groove 18.

[0038] As shown in the drawings, Figure 6 and Figure 8 , one side of the transverse limiting spring piece 15 is close to the clamping groove 18, and the other side of the transverse limiting spring piece 15 corresponding to the one side is away from the clamping groove 18, the one side of the transverse limiting spring piece 15 close to the clamping groove 18 is protruded to form an arc-shaped structure away from the other side, the conductive column one 4 is provided with a rectangular hole 19 matched with the transverse limiting spring piece 15, one end of the rectangular hole 19 is close to the terminal block one 12, the other end of the rectangular hole 19 is away from the terminal block one 12, one end of the transverse limiting spring piece 15 is fixedly connected with the one end of the rectangular hole 19 away from the terminal block one 12 and forms an integral whole, and the other end of the transverse limiting spring piece 15 is in contact with the bottom of the clamping groove 18.

[0039] As shown in the drawings, Figure 8 , one side of the conductive column one 4 is away from the clamping groove 18, and the other side of the conductive column one 4 corresponding to the one side is close to the clamping groove 18, one end of the transverse limiting spring piece 15 fixedly connected with the rectangular hole 19 is located on the one side of the conductive column one 4 away from the clamping groove 18, and the one side of the transverse limiting spring piece 15 away from the clamping groove 18 is on the same smooth surface with the one side of the conductive column one 4 away from the clamping groove 18.

[0040] As shown in the drawings, Figure 4 , Figure 5 ,Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, the structure of conductive groove 5 is the same as that of conductive groove 7. Both conductive groove 5 and conductive groove 7 are provided with the same clamping member 20. One end of the clamping member 20 is provided with a clamping part 21 that matches the conductive post 8, and the other end of the clamping member 20 is provided with a wiring block 22. The bottom of conductive groove 5 is fixed with a mounting base 23. The clamping member 20 is provided with a limiting structure 24. The clamping member 20 is limited to the mounting base 23 by the limiting structure 24 and passes through the bottom of conductive groove 5 and the mounting base 23 in sequence and is fixedly connected to the wiring block 22. The clamping member 20 in conductive groove 5 is fixedly connected to the socket 1 by injection molding and forms an integral part. The clamping member 20 in conductive groove 7 is fixedly connected to the plug 2 by injection molding and forms an integral part.

[0041] like Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, the clamping member 20 includes a metal sheet 25, which is confined within the mounting base 23 by a limiting structure 24. Two clamping pieces 26 are provided on the metal sheet 25. The two clamping pieces 26 are symmetrically distributed on both sides of the metal sheet 25. One end of the clamping piece 26 passes through the bottom of the conductive groove 5 and the mounting base 23 and is fixedly connected to the metal sheet 25 to form an integral unit. The clamping part 21 is located in the area formed by the other ends of the two clamping pieces 26. One end of the clamping part 21 is close to the metal sheet 25, and the other end is away from the metal sheet 25. The width of the clamping part 21 gradually decreases from the end close to the metal sheet 25 to the other end. A connecting block is provided on the other side of the metal sheet 25. The metal sheet 25 passes through the mounting base 23 and is fixedly connected to the wiring block 22 to form an integral unit. The limiting structure 24 is located at the end of the clamping part 21 close to the metal sheet 25 and on the side of the clamping piece 26.

[0042] like Figure 6 , Figure 7 and Figure 11 As shown, one side of the clamping piece 26 is located inside the clamping part 21, and the other side of the clamping piece 26 is located outside the clamping part 21. The other end of the clamping piece 26 is folded towards the side outside the clamping part 21 to form a beveled surface 28. The beveled surface 28 is located on the end of the clamping part 21 away from the metal piece 25. A limiting strip 27 that contacts the beveled surface 28 is fixed inside the opening end of the conductive groove 5. One end of the beveled surface 28 is fixedly connected to the clamping piece 26 and forms an integral part. The other edge of the beveled surface 28 is provided with a guide bevel 29, which is located inside the clamping part 21.

[0043] like Figure 11 and Figure 12As shown in the drawings, one side of the clamping piece 26 is located in the clamping portion 21, and the other side of the clamping piece 26 is located outside the clamping portion 21. The other end of the clamping piece 26 is folded to form a bevel surface 28 on the side of the clamping portion 21. One end of the bevel surface 28 is fixedly connected to the clamping piece 26 and forms an integral whole. One side of the bevel surface 28 is located in the clamping portion 21, and the other side of the bevel surface 28 is located outside the clamping portion 21. The other end of the bevel surface 28 is folded to form an inclined surface 36 on the side of the clamping portion 21. A limiting strip 27 in contact with the inclined surface 36 is fixedly arranged in the opening end of the conductive groove 5. One end of the inclined surface 36 is fixedly connected to the bevel surface 28 and forms an integral whole. The other end of the inclined surface 36 is provided with a guide bevel surface 29 located in the clamping portion 21.

[0044] As shown in the drawings, Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 11 , the limiting structure 24 includes two limiting plates 30 and two limiting pieces 31. The two limiting plates 30 are respectively located on the left and right sides of the metal sheet 25 and form a U-shaped structure with the metal sheet 25. One side of the limiting plate 30 is fixedly connected to the metal sheet 25 and forms an integral whole. The other side of the clamping piece 26 is fixedly connected to the limiting plate 30 and forms an integral whole and forms a T-shaped structure. One side of the mounting seat 23 is close to the wiring block 22, and the other side of the mounting seat 23 is away from the wiring block 22. The side of the mounting seat 23 close to the wiring block 22 is provided with a limiting groove 32 matched with the U-shaped structure. The bottom of the limiting groove 32 is provided with a through hole for the two clamping pieces 26 to pass through. The through hole is in communication with the conductive groove 5. The two limiting pieces 31 are respectively located on the two clamping pieces 26. One end of the limiting piece 31 is close to the limiting plate 30, and the other end of the limiting piece 31 is away from the limiting plate 30 and fixedly connected to the edge of the clamping piece 26 and forms an integral whole. The bottom of the conductive groove 5 is provided with a limiting protrusion 33 fixedly connected to the side wall of the conductive groove 5. The end of the limiting piece 31 close to the limiting plate 30 is located on the limiting protrusion 33. The width between the two limiting pieces 31 gradually decreases from one end away from the limiting plate 30 to the other end.

[0045] As shown in the drawings, Figure 6 and Figure 7As shown, the slot 3 is provided with a guide block 34, the guide block 34 is fixedly connected with the bottom of the slot 3 and forms an integral, the guide block 34 is located at the side of the conductive column one 4, the plug 2 is provided with a guide groove 35 matched with the guide block 34, the guide groove 35 is located at the side of the conductive groove two 7, the conductive groove one 5 and the plurality of detection grooves 6 are all located on the guide block 34, the conductive column two 8 and the plurality of detection needles 9 are all located in the guide groove 35. The shape of the guide block 34 is L-shaped, the detection grooves 6 are four, the four detection grooves 6 are evenly distributed on one side of the guide block 34 in a straight line, the conductive groove one 5 is located on the other side of the guide block 34, and the conductive column one 4 is located in the L-shaped structure of the guide block 34.

[0046] The detection groove 6 enables the function state of the charger to be quickly detected, the detection groove 6 also has a conductive column, so that the detection needle 9 entering the detection groove 6 can accurately and quickly detect the fault of the charger, so that the charger can be reasonably and scientifically used, the use risk is reduced, and safety is ensured.

[0047] When plugging, the guide block 34 on the socket 1 is matched with the guide groove 35 on the plug 2, so that the conductive column one 4 on the socket 1 and the conductive groove two 7 on the plug 2, the conductive groove one 5 on the socket 1 and the conductive column two 8 on the plug 2, and the detection needle 9 and the detection groove 6 are matched one by one, so that the plug 2 can be accurately inserted into the socket 1 without multiple attempts, and the purpose of not easily reversing the polarity is achieved.

[0048] The conductive column one 4 and the conductive column two 8 are matched with the limiting groove one 17 through the longitudinal limiting block 14 and the limiting groove one 17, and the transverse limiting spring 15 acts on the bottom of the clamping groove 18 to be limited on the mounting seat one 13, and then are fixedly connected with the socket 1 and the plug 2 respectively through the injection molding process. On the one hand, the preliminary limiting of the conductive column one 4 and the conductive column two 8 during injection molding is facilitated, the positional accuracy during injection molding is improved, and injection molding is facilitated. On the other hand, it is beneficial to improve the connection firmness of the conductive column one 4 and the conductive column two 8, facilitate repeated plugging and unplugging, ensure the firmness of the wiring, and prolong the service life.

[0049] The clamping pieces 20 in the conductive groove one 5 and the clamping pieces 20 in the conductive groove two 7 are first limited on the mounting seat two 23 through the cooperation of the limiting piece 31 and the limiting plate 30, and then are fixedly connected with the socket 1 and the plug 2 respectively through injection molding. On the one hand, the preliminary limiting of the clamping pieces 20 during injection molding is facilitated, the positional accuracy during injection molding is improved, and injection molding is facilitated. On the other hand, it is beneficial to improve the connection firmness of the clamping pieces 20, facilitate repeated plugging and unplugging, ensure the firmness of the wiring, and prolong the service life.

Claims

1. A charging plug assembly, characterized in that, The utility model provides a socket (1) and plug (2) including, the socket (1) is equipped with the slot (3) matching with plug (2), the plug (2) is connected through the slot (3) with the socket (1) plug -in, the slot (3) is equipped with the electrically conductive column one (4), the electrically conductive groove one (5) and a plurality of detection groove (6), the plug (2) is equipped with the electrically conductive groove two (7) matching with electrically conductive column one (4), the electrically conductive groove one (5) is matched with the electrically conductive column two (8) and a plurality of detection needle (9) one -to -one matching with detection groove (6), the electrically conductive column one (4) one end is located in the slot (3), the other end of electrically conductive column one (4) and the end of electrically conductive column two (8) all are equipped with limit structure one (10), the electrically conductive column one (4) is limited in the bottom of slot (3) through limit structure one (10) and is fixedly connected with socket (1), the electrically conductive column two (8) is limited in the plug (2) through limit structure one (10), and the detection needle (9) and electrically conductive column two (8) are all fixedly connected with plug (2);The structure of electrically conductive groove one (5) and the structure of electrically conductive groove two (7) are same, and the same clamping piece (20) is arranged in electrically conductive groove one (5) and electrically conductive groove two (7);The clamping piece (20) includes metal sheet (25), the metal sheet (25) is limited in the mounting seat two (23) through limit structure two (24), the metal sheet (25) is equipped with two clamping pieces (26), and the two clamping pieces (26) are symmetrically distributed with the metal sheet (25) as the center and are located on one side of the metal sheet (25), one end of the clamping piece (26) penetrates the bottom of electrically conductive groove one (5) and the mounting seat two (23) in turn and is fixedly connected with the metal sheet (25) and forms an integral whole, one end of the clamping piece (20) is equipped with the clamping portion (21) matching with electrically conductive column two (8), the other end of the clamping piece (20) is equipped with the terminal block two (22), the clamping portion (21) is located in the region formed by the other end of the two clamping pieces (26), one end of the clamping portion (21) is close to the metal sheet (25), the other end of the clamping portion (21) is away from the metal sheet (25), the width of the clamping portion (21) gradually decreases from one end close to the metal sheet (25) to the other end, the other side of the metal sheet (25) is equipped with the connecting block, the metal sheet (25) is fixedly connected with the terminal block two (22) and forms an integral whole through the connecting block and the mounting seat two (23), and the limit structure two (24) is located at one end of the clamping portion (21) close to the metal sheet (25) and is located at the side of the clamping piece (26);One side of the clamping piece (26) is located in the clamping portion (21), the other side of the clamping piece (26) is located outside the clamping portion (21), the other end of the clamping piece (26) is folded to form the bevel (28) to the side outside the clamping portion (21), and the bevel (28) is located on one end of the clamping portion (21) away from the metal sheet (25).The guiding block (34) is fixedly connected with the bottom of the slot (3) and forms an integral whole, the guiding block (34) is located at the side of the conductive column (4), the plug (2) is provided with a guiding groove (35) matched with the guiding block (34), the guiding groove (35) is located at the side of the conductive groove (7), the conductive groove (5) and the plurality of detection grooves (6) are located on the guiding block (34), and the conductive column (8) and the plurality of detection needles (9) are located in the guiding groove (35).

2. A charging docking assembly according to claim 1, characterised in that, The structure of the conductive column one (4) is same as the structure of the conductive column two (8), one end edge of the conductive column one (4) is equipped with a guide inclined plane one (11), the other end of the conductive column one (4) is equipped with a wiring block one (12), the bottom of the slot (3) and the plug (2) are both equipped with a mounting seat one (13), the conductive column one (4) and the conductive column two (8) are both limited on the mounting seat one (13) through corresponding limiting structures one (10) and are fixedly connected with the wiring block one (12) through penetrating the mounting seat one (13), the conductive column one (4) is fixedly connected with the socket (1) through injection molding and forms an integral, the conductive column two (8) is fixedly connected with the plug (2) through injection molding and forms an integral.

3. A charging docking assembly according to claim 2, wherein, The limiting structure one (10) includes a longitudinal limiting block (14) and a transverse limiting elastic sheet (15), the mounting seat one (13) is equipped with a mounting hole (16), the other end of the conductive column one (4) is fixedly connected with the wiring block one (12) through penetrating the mounting hole (16), the longitudinal limiting block (14) is fixedly connected with the side surface of the conductive column one (4) and forms an integral, one end of the mounting hole (16) is close to the wiring block one (12) and is equipped with a limiting groove one (17) matched with the longitudinal limiting block (14), the other end of the mounting hole (16) is away from the wiring block one (12) and is equipped with a clamping groove (18) matched with the transverse limiting elastic sheet (15), the clamping groove (18) is located on the side wall of the mounting hole (16) and is communicated with the mounting hole (16), one end of the transverse limiting elastic sheet (15) is fixedly connected with the side wall of the conductive column one (4), the other end of the transverse limiting elastic sheet (15) is limited in the clamping groove (18).

4. A charging docking assembly according to claim 3, wherein, One side of the transverse limiting elastic sheet (15) is close to the clamping groove (18), the other side of the transverse limiting elastic sheet (15) corresponding to the one side is away from the clamping groove (18), the one side of the transverse limiting elastic sheet (15) close to the clamping groove (18) is convex to the other side away from the clamping groove (18) and forms an arc structure, the conductive column one (4) is equipped with a rectangular hole (19) matched with the transverse limiting elastic sheet (15), one end of the rectangular hole (19) is close to the wiring block one (12), the other end of the rectangular hole (19) is away from the wiring block one (12), one end of the transverse limiting elastic sheet (15) is fixedly connected with one end of the rectangular hole (19) away from the wiring block one (12) and forms an integral, the other end of the transverse limiting elastic sheet (15) is in contact with the bottom of the clamping groove (18).

5. A charging docking assembly according to claim 4, wherein, One side of the conductive column one (4) is away from the clamping groove (18), the other side of the conductive column one (4) corresponding to the one side is close to the clamping groove (18), one end of the transverse limiting elastic sheet (15) fixedly connected with the rectangular hole (19) is located on the one side of the conductive column one (4) away from the clamping groove (18), the other side of the transverse limiting elastic sheet (15) away from the clamping groove (18) is on the same smooth surface with the one side of the conductive column one (4) away from the clamping groove (18).

6. A charging plug assembly according to claim 1 or 2 or 3 or 4 or 5, characterised in that, The bottom of the conductive groove one (5) is fixedly provided with a mounting seat two (23), the clamping piece (20) is provided with a limiting structure two (24), the clamping piece (20) is limited on the mounting seat two (23) through the limiting structure two (24) and is fixedly connected with the wiring block two (22) in sequence through the bottom of the conductive groove one (5) and the mounting seat two (23), the clamping piece (20) in the conductive groove one (5) is fixedly connected with the socket (1) through injection molding and forms an integral whole, the clamping piece (20) in the conductive groove two (7) is fixedly connected with the plug (2) through injection molding and forms an integral whole.

7. A charging docking assembly according to claim 1, wherein, The opening end of the conductive groove one (5) is fixedly provided with a limiting strip (27) in contact with the bevel (28), one end of the bevel (28) is fixedly connected with the clamping piece (26) and forms an integral whole, the other end edge of the bevel (28) is provided with a guide bevel two (29), and the guide bevel two (29) is located in the clamping portion (21).

8. A charging docking assembly according to claim 1, wherein, One end of the bevel (28) is fixedly connected with the clamping piece (26) and forms an integral whole, one side of the bevel (28) is located in the clamping portion (21), the corresponding side of the bevel (28) is located outside the clamping portion (21), the other end of the bevel (28) is folded to form an inclined surface (36) towards the side located in the clamping portion (21), the opening end of the conductive groove one (5) is fixedly provided with a limiting strip (27) in contact with the inclined surface (36), one end of the inclined surface (36) is fixedly connected with the bevel (28) and forms an integral whole, the other end edge of the inclined surface (36) is provided with a guide bevel two (29), and the guide bevel two (29) is located in the clamping portion (21).

9. A charging docking assembly according to claim 7, wherein, The limiting structure two (24) includes two limiting plates (30) and two limiting sheets (31), the two limiting plates (30) are respectively located on the left side and the right side of the metal sheet (25) and form a U-shaped structure with the metal sheet (25), one side edge of the limiting plate (30) is fixedly connected with the metal sheet (25) and forms an integral, the clamping sheet (26) is fixedly connected with the other side edge of the limiting plate (30) and forms an integral and forms a T-shaped structure, one side of the mounting seat two (23) is close to the wiring block two (22), the other side of the mounting seat two (23) is away from the wiring block two (22), the side of the mounting seat two (23) close to the wiring block two (22) is provided with a limiting groove two (32) matched with the U-shaped structure, the bottom of the limiting groove two (32) is provided with a through hole convenient for the two clamping sheets (26) to penetrate, the through hole is communicated with the conductive groove one (5), the two limiting sheets (31) are respectively located on the two clamping sheets (26), one end of the limiting sheet (31) is close to the limiting plate (30), the other end of the limiting sheet (31) is away from the limiting plate (30) and is fixedly connected with the edge of the clamping sheet (26) and forms an integral, the bottom of the conductive groove one (5) is provided with a limiting protrusion (33), the limiting protrusion (33) is fixedly connected with the side wall of the conductive groove one (5), one end of the limiting sheet (31) close to the limiting plate (30) is located on the limiting protrusion (33), and the width between the two limiting sheets (31) gradually decreases from one end away from the limiting plate (30) to the other end.

10. A charging docking assembly according to claim 1, wherein, The shape of the guide block (34) is L-shaped, the detection groove (6) has four, four detection grooves (6) are evenly distributed on one side of the guide block (34) in a straight line, the conductive groove one (5) is located on the other side of the guide block (34), and the conductive column one (4) is located in the L-shaped structure of the guide block (34).

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