TypeC plug

Abstract

The utility model discloses a TypeC plug, and relates to the technical field of circuit connection, and the TypeC plug comprises an upper row of terminals, a lower row of terminals and a middle clamping piece. The upper-row terminal is provided with an upper combination part, a first upper extension part, a second upper extension part and an upper welding part which are sequentially connected from front to back, the second upper extension part is bent downwards relative to the first upper extension part, and the included angle between the second upper extension part and the first upper extension part is smaller than 120 degrees; the lower-row terminal is arranged below the upper-row terminal, the lower-row terminal is provided with a lower combination part, a first lower extension part, a second lower extension part and a lower welding part which are sequentially connected from front to back, the second lower extension part is bent downwards relative to the first lower extension part, and the lower welding part and the upper welding part are arranged in the same plane; the middle clamping piece is arranged between the upper row of terminals and the lower row of terminals, and the middle clamping piece is in abutting fit with the upper row of terminals and the lower row of terminals. The TypeC plug can solve the technical problem that an existing TypeC connector is difficult to meet actual application requirements in mechanical performance, signal stability or assembly efficiency.

Description

Technical Field

[0001] The present application relates to the field of power supply circuit connection technology, and in particular to a Type C plug. Background Art

[0002] In the prior art, the Type C connector standard has clearly defined the basic physical construction parameters of the connector, such as the physical dimensions of the plug and socket, the maximum number of terminals, the basic pin definition of the terminals, the positioning position of the terminal joint, the spacing of the terminal joint, and the basic electrical specifications of the terminals.

[0003] Considering the wide application of Type C connectors, on the basis of complying with the Type C connector standards, it is necessary to tailor the connector's performance or enhance its structure to overcome the practical problem that it is difficult to meet actual application requirements in terms of mechanical performance, signal stability or assembly efficiency. Utility Model Content

[0004] The purpose of this application is to provide a Type C plug, aiming to solve the technical problem that the existing Type C connector is difficult to meet the actual application requirements in terms of mechanical performance, signal stability or assembly efficiency.

[0005] In order to achieve its purpose, the technical solutions adopted by this application are as follows:

[0006] A Type C plug, comprising:

[0007] An upper row of terminals, the upper row of terminals comprising an upper combining portion, a first upper extension portion, a second upper extension portion and an upper welding portion sequentially connected from front to back, the second upper extension portion being bent downward relative to the first upper extension portion, and an angle between the second upper extension portion and the first upper extension portion being less than 120°;

[0008] A lower row of terminals, the lower row of terminals being arranged below the upper row of terminals, the lower row of terminals comprising a lower combining portion, a first lower extending portion, a second lower extending portion and a lower welding portion sequentially connected from front to back, the second lower extending portion being bent downward relative to the first lower extending portion, and the lower welding portion and the upper welding portion being arranged in the same plane;

[0009] A middle clip is disposed between the upper row of terminals and the lower row of terminals, and the middle clip abuts against and cooperates with the upper row of terminals and the lower row of terminals.

[0010] Further, the upper row of terminals includes a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal, a seventh terminal, an eighth terminal, a ninth terminal and a tenth terminal arranged at intervals from left to right; the lower row of terminals includes an eleventh terminal and a twelfth terminal arranged at intervals from left to right;

[0011] The upper welding portion of the first terminal, the upper welding portion of the second terminal, the upper welding portion of the third terminal, the upper welding portion of the fourth terminal, the upper welding portion of the fifth terminal, the upper welding portion of the sixth terminal, the upper welding portion of the seventh terminal, the upper welding portion of the eighth terminal, the upper welding portion of the ninth terminal, the upper welding portion of the tenth terminal, the lower welding portion of the eleventh terminal, and the lower welding portion of the twelfth terminal are arranged in the same plane; the lower welding portion of the eleventh terminal and the lower welding portion of the twelfth terminal are located between the upper welding portion of the ninth terminal and the upper welding portion of the tenth terminal; the lower combining portion of the eleventh terminal is relatively arranged below the upper combining portion of the second terminal, and the lower combining portion of the twelfth terminal is relatively arranged below the upper combining portion of the third terminal.

[0012] Further, a rectangular vacant area is formed between the first lower extension portion of the eleventh terminal and the first lower extension portion of the twelfth terminal, and a width of the rectangular vacant area is greater than a distance between the lower welding portion of the eleventh terminal and the lower welding portion of the twelfth terminal.

[0013] Furthermore, the middle clip includes a clip body, which is in the shape of a rectangular flat plate and is arranged between the first upper extension portion and the first lower extension portion; a pair of combining clip arms are axially symmetrically arranged at the left front and right front portions of the clip body, and the two arms of the combining clip arms are in the shape of narrow strips and extend forward to the front end portions of the upper combining portion and the lower combining portion, and the front end portions of the two arms of the combining clip arms are provided with inwardly protruding snap-fit ​​protrusions.

[0014] Furthermore, a first notch is formed at the connection between the inner side of the root of the combined clamp arm and the clip body; the width of the two arms of the combined clamp arm gradually decreases from the root to the end, and the two arms of the combined clamp arm form an outward convex arc from the root to the end.

[0015] Furthermore, a pair of hook plates are arranged at the left rear and right rear parts of the clip body in an axially symmetrical manner, and the hook plates are in the shape of strip plates, the front end of the hook plates is fixed to the clip body, the middle part of the hook plates extends backward and bends downward, and the rear end of the hook plates is arranged in the same plane as the upper welding part and the lower welding part.

[0016] Furthermore, the Type C plug also includes a plug shell, and the left and right sides of the plug shell are respectively provided with snap-in holes; the upper row of terminals, the lower row of terminals, and the middle clip are accommodated in the inner cavity of the plug shell; a pair of right-angle protrusions are axially symmetrically arranged in the middle of the left end surface and the middle of the right end surface of the clip body, and the front side surface of the right-angle protrusion is an inclined surface deviating inward from back to front, and the rear side surface of the right-angle protrusion is a vertical surface perpendicular to the front and rear directions, and the right-angle protrusion is snap-fitted into the snap-in hole.

[0017] Furthermore, a second notch is formed between the outer side of the root of the combined clamp arm and the right-angle protrusion.

[0018] Furthermore, the plug housing is provided with an avoidance through hole, which is opposite to the second notch; the plug housing is provided with an active buckle, and the active buckle is provided with a clip patch; the clip patch is used to pass through the avoidance through hole and snap-fit ​​into the second notch as the active buckle rotates, and the clip patch is used to disengage from the second notch as the active buckle rotates.

[0019] Furthermore, the Type C plug also includes an upper plastic body, a lower plastic body, an upper plastic sheath and a lower plastic sheath;

[0020] The upper plastic body is fixedly matched with the upper portion of the middle clip according to the positioning reference provided by the middle clip, and the upper plastic body is used to accommodate the first upper extension portion and the second upper extension portion;

[0021] The lower plastic body is fixedly matched with the lower part of the middle clip according to the positioning reference provided by the middle clip, and the lower plastic body is used to accommodate the first lower extension part and the second lower extension part;

[0022] The upper plastic sheath is fixedly matched with the front part of the upper plastic body according to the positioning reference provided by the upper plastic body, and the upper plastic sheath is used to support the upper joint part;

[0023] The lower plastic sheath is fixedly matched with the front part of the lower plastic body according to the positioning reference provided by the lower plastic body, and the lower plastic sheath is used to support the lower joint part;

[0024] A circumferential contour formed by the upper plastic body, the upper plastic sleeve, the lower plastic body and the lower plastic sleeve is snap-fitted with an inner wall of the plug housing.

[0025] Furthermore, the Type C plug further includes two EMI shrapnel templates respectively arranged in the upper plastic sheath and the lower plastic sheath, and the two EMI shrapnel templates are arranged in parallel in an axisymmetric manner based on a central horizontal plane;

[0026] The EMI spring sheet template comprises a rectangular sheet, a plurality of arc spring sheets are evenly arranged at the front end of the rectangular sheet from left to right, one end of the arc spring sheet is fixed on the rectangular sheet, the other end of the arc spring sheet is suspended, and the middle part of the arc spring sheet protrudes toward the central horizontal plane; the projection of the arc spring sheet on the horizontal plane is located in front of the upper joint part and the lower joint part; the left rear part and the right rear part of the rectangular sheet are respectively provided with short-circuit sheets, which extend horizontally backward and contact the inner wall of the plug housing;

[0027] A group of through holes are respectively formed at the front ends of the upper plastic sheath and the lower plastic sheath. The through holes are arranged in one-to-one correspondence with the circular arc spring pieces, and the middle convex part of the circular arc spring piece is penetrated in the through holes.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] The Type C plug proposed in this application can optimize the arrangement order of the upper soldering part and the lower soldering part through the orderly extension of the upper extension part and the lower extension part; and through the downward bending operation of the second upper extension part and the second lower extension part, the upper soldering part of the upper row terminal and the lower soldering part of the lower row terminal can be placed on the same plane and arranged in parallel to form a single row of solder pins, making the overall structure of the plug more compact; at the same time, by limiting the angle between the second upper extension part and the first upper extension part to within 120°, that is, increasing the degree of downward bending of the second upper extension part relative to the first upper extension part, the upper soldering part and the lower soldering part can be limited to a lower position, so that the upper soldering part and the lower soldering part are closer to the soldering area of ​​the lower circuit board, which is more conducive to the soldering operation and ensuring the reliability of the circuit connection after soldering. Based on the above settings, the complexity of the connection between the plug module and the circuit board and the overall volume of the plug module are reduced, which is conducive to simplifying the spatial layout of the circuit board and improving the reliability of the terminal circuit connection. At the same time, the standard GND terminal is used to form a balanced support force during the plug-in process, so that the upper and lower rows of terminals have stable and consistent plug-in force, which is conducive to overcoming excessive lateral wear during the plug-in process, and the product performance is more stable during long-term use. In addition, a support structure that can release and adjust internal stress can be formed between the middle clip and the upper and lower rows of terminals, so that the plug structure can adapt to the harsh use environment of the plug from the inside, ensuring the stability of the structural performance over a long service life; at the same time, the conductor connection characteristics between the middle clip and the upper and lower rows of terminals can form a signal shielding layer that isolates the upper and lower rows of terminals, eliminating electromagnetic radiation interference caused by high-frequency transmission between the sending and receiving signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of the partial assembly structure of an embodiment of a Type C plug of the present application;

[0032] Figure 2 This is a partial exploded structural diagram of an embodiment of a Type C plug of the present application;

[0033] Figure 3 This is a schematic diagram of the structure of the clip in an embodiment of the Type C plug of this application;

[0034] Figure 4 This is a schematic diagram of the structure of the clip in another embodiment of the Type C plug of the present application;

[0035] Figure 5 This is a schematic diagram of the overall exploded structure of the Type C plug in the present application after removing the plug housing;

[0036] Figure 6 This is a schematic diagram of the overall assembly structure after removing the plug housing in an embodiment of the Type C plug of the present application;

[0037] Figure 7 This is a schematic diagram of the overall assembly structure of an embodiment of the Type C plug of the present application.

[0038] Description of Figure Numbers:

[0039]

[0040]

[0041] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] This application embodiment provides a Type C plug, see Figure 1 and Figure 2 , the Type C plug includes:

[0046] The upper row terminal 1 comprises an upper connecting portion 101, a first upper extension portion 102, a second upper extension portion 103 and an upper welding portion 104 which are sequentially connected from front to back, the second upper extension portion 103 is bent downward relative to the first upper extension portion 102, and the angle between the second upper extension portion 103 and the first upper extension portion 102 is less than 120°;

[0047] The lower row of terminals 2 is arranged below the upper row of terminals 1. The lower row of terminals 2 comprises a lower combining portion 201, a first lower extending portion 202, a second lower extending portion 203 and a lower welding portion 204 which are sequentially connected from front to back. The second lower extending portion 203 is bent downward relative to the first lower extending portion 202. The lower welding portion 204 and the upper welding portion 104 are arranged in the same plane.

[0048] The middle clamping piece 3 is arranged between the upper row of terminals 1 and the lower row of terminals 2 , and the middle clamping piece 3 is in abutment with the upper row of terminals 1 and the lower row of terminals 2 .

[0049] The Type C plug provided in this embodiment improves the fixing method, electrical structure and other aspects based on the Type C connector standard, so that the performance of the plug is improved; the Type C plug defines two rows of upper and lower terminals, that is, facing the plug insertion opening, wherein each terminal has a pin function definition, for example, the pin function is defined as RX1-, RX1+, BUS, D-, D+, CC, TX1-, TX1+, GND, etc., to form a specific power supply and data transmission structure.

[0050] Specifically, through the orderly extension of the upper extension part and the lower extension part, the arrangement order of the upper welding part 104 and the lower welding part 204 can be optimized; and through the downward bending operation of the second upper extension part 103 and the second lower extension part 203, the upper welding part 104 of the upper row terminal 1 and the lower welding part 204 of the lower row terminal 2 can be placed on the same plane and arranged in parallel to form a single row of welding feet, so that the overall structure of the plug is more compact; at the same time, by limiting the angle between the second upper extension part 103 and the first upper extension part 102 to within 120°, that is, increasing the degree of downward bending of the second upper extension part 103 relative to the first upper extension part 102, the upper welding part 104 and the lower welding part 204 can be limited to a lower position, so that the upper welding part 104 and the lower welding part 204 are closer to the welding area of ​​the circuit board below, which is more conducive to the welding operation and ensures the reliability of the circuit connection after welding. Based on the above settings, the complexity of the connection between the plug module and the circuit board and the overall volume of the plug module are reduced, which is conducive to simplifying the spatial layout of the circuit board and improving the reliability of the terminal circuit connection. At the same time, the standard GND terminal is used to form a balanced support force during the plug and socket insertion process, so that the upper and lower rows of terminals 2 have stable and consistent insertion forces, which is conducive to overcoming excessive lateral wear during the plug and socket insertion process, and the product performance is more stable in long-term use.

[0051] In addition, a support structure capable of releasing and adjusting internal stress can be formed between the middle clip 3 and the upper row of terminals 1 and the lower row of terminals 2, so that the plug structure can adapt to the harsh use environment of the plug from the inside, ensuring the stability of the structural performance over a long use period. At the same time, by utilizing the conductor connection characteristics between the middle clip 3 and the upper row of terminals 1 and the lower row of terminals 2, a signal shielding layer can be formed to isolate the upper and lower rows of terminals 2, eliminating electromagnetic radiation interference caused by high-frequency transmission between the sending and receiving signals.

[0052] Optionally, refer to Figure 1 and Figure 2 , the upper row of terminals 1 includes a first terminal 1a, a second terminal 1b, a third terminal 1c, a fourth terminal 1d, a fifth terminal 1e, a sixth terminal 1f, a seventh terminal 1g, an eighth terminal 1h, a ninth terminal 1i and a tenth terminal 1j which are arranged at intervals from left to right; the lower row of terminals 2 includes an eleventh terminal 2a and a twelfth terminal 2b which are arranged at intervals from left to right;

[0053] The upper soldering portion 104 of the first terminal 1a, the upper soldering portion 104 of the second terminal 1b, the upper soldering portion 104 of the third terminal 1c, the upper soldering portion 104 of the fourth terminal 1d, the upper soldering portion 104 of the fifth terminal 1e, the upper soldering portion 104 of the sixth terminal 1f, the upper soldering portion 104 of the seventh terminal 1g, the upper soldering portion 104 of the eighth terminal 1h, the upper soldering portion 104 of the ninth terminal 1i, the upper soldering portion 104 of the tenth terminal 1j, and the lower soldering portion 204 of the eleventh terminal 2a , and the lower welding portion 204 of the twelfth terminal 2b are arranged in the same plane; the lower welding portion 204 of the eleventh terminal 2a and the lower welding portion 204 of the twelfth terminal 2b are located between the upper welding portion 104 of the ninth terminal 1i and the upper welding portion 104 of the tenth terminal 1j; the lower combining portion 201 of the eleventh terminal 2a is relatively arranged below the upper combining portion 101 of the second terminal 1b, and the lower combining portion 201 of the twelfth terminal 2b is relatively arranged below the upper combining portion 101 of the third terminal 1c.

[0054] In this embodiment, by planning the extension paths of the eleventh terminal 2a and the twelfth terminal 2b, the positions of the lower welding portion 204 of the eleventh terminal 2a and the lower welding portion 204 of the twelfth terminal 2b can be adjusted so that the lower welding portion 204 of the eleventh terminal 2a and the lower welding portion 204 of the twelfth terminal 2b are away from the corresponding upper welding portion 104 of the upper row of terminals 1. For example, the lower welding portion 204 of the RX1-, RX1+ functions is away from the upper welding portion 104 of the TX1-, TX1+ functions, so that the transmission spacing of the positive and negative dual-path differential signals is increased, the isolation of the high-speed serial signal is increased, and the probability of forming high-frequency interference such as parasitic channel interference is reduced.

[0055] Optionally, refer to Figure 2 A rectangular vacant area 100 is formed between the first lower extension portion 202 of the eleventh terminal 2a and the first lower extension portion 202 of the twelfth terminal 2b, and the width of the rectangular vacant area 100 is greater than the distance between the lower welding portion 204 of the eleventh terminal 2a and the lower welding portion 204 of the twelfth terminal 2b.

[0056] In this embodiment, the first lower extension portion 202 of the eleventh terminal 2a and the first lower extension portion 202 of the twelfth terminal 2b are linearly extended along different paths, and the consistency of the extension lengths should be ensured at the same time; in this way, the distance between the eleventh terminal 2a and the twelfth terminal 2b can be increased locally (i.e., in the rectangular vacant area 100), so that the probability of mutual coupling and interference of transmission signals between the transmission channel corresponding to the eleventh terminal 2a and the transmission channel corresponding to the twelfth terminal 2b is further reduced, so that the signal transmission accuracy can be further improved, and the same interference signal can be avoided from coupling two transmission channels at the same time, which is beneficial to further reduce the transmission bit error rate.

[0057] Preferably, the first downward extension portion 202 of the eleventh terminal 2a forms at least two right-angle bends, and the first downward extension portion 202 of the twelfth terminal 2b forms at least two right-angle bends.

[0058] Optionally, refer to Figures 1 to 3 The middle clip 3 includes a clip body, which is in the shape of a rectangular flat plate and is arranged between the first upper extension portion 102 and the first lower extension portion 202; a pair of combining clamp arms 301 are axially symmetrically arranged at the left front and right front portions of the clip body, and the two arms of the combining clamp arms 301 are in the shape of narrow strips and extend forward to the front end portions of the upper combining portion 101 and the lower combining portion 201, and the front ends of the two arms of the combining clamp arms 301 are both provided with inwardly protruding snap-fit ​​protrusions 3011.

[0059] Optionally, refer to Figures 1 to 3 A first notch 302 is formed at the connection between the inner side of the root of the clamp arm 301 and the clamp body; the width of the two arms of the clamp arm 301 gradually decreases from the root to the end, and the two arms of the clamp arm 301 form an outward convex arc from the root to the end.

[0060] In this embodiment, based on the above-mentioned structural setting of the combined clamp arm 301, during the plug-in process of the socket, the combined clamp arm 301 can provide nonlinear torque changes, so that the resistance during the plug-in process is smaller, and the resistance during the holding process after the plug-in is completed is larger, thereby improving the smoothness of the plug-in and the stability of the connection after the plug-in.

[0061] Optionally, refer to Figures 1 to 3 A pair of hook plates 303 are provided at the left and right rear parts of the clip body in an axisymmetric manner. The hook plates 303 are in the shape of strip plates. The front end of the hook plates 303 is fixed to the clip body. The middle part of the hook plates extends backward and bends downward. The rear end of the hook plates is arranged in the same plane as the upper welding part 104 and the lower welding part 204. On the basis of the middle clip 3 as the assembly positioning reference, the hook plates 303 can provide a limiting structure in the third direction of the circuit board to ensure the assembly quality of the multi-layer circuit board or the flexible circuit.

[0062] Optionally, refer to Figure 1 , Figure 2 , Figure 3 and Figure 7The Type C plug also includes a plug shell 9, and the left and right sides of the plug shell 9 are respectively provided with card-connecting holes 901; the upper row of terminals 1, the lower row of terminals 2, and the middle clip 3 are accommodated in the inner cavity of the plug shell 9; a pair of right-angle protrusions 304 are axially symmetrically arranged in the middle of the left end surface and the middle of the right end surface of the clip body, and the front side surface of the right-angle protrusion 304 is an inclined surface deviating inward from back to front, and the rear side surface of the right-angle protrusion 304 is a vertical surface perpendicular to the front and rear directions, and the right-angle protrusion 304 is card-fitted into the card-connecting hole 901.

[0063] The connection and fixation between the middle clip 3, the upper row of terminals 1, the lower row of terminals 2 and the plug housing 9 is achieved through the snap-fitting between the right-angle protrusion 304 and the snap-fitting through hole 901 on the side wall of the plug housing 9. Among them, based on the structural setting of the right-angle protrusion 304, the difference of bidirectional rejection can be provided, the vertical surface is used to provide the overall stability of the action with the matching parts, and the inclined surface is used to provide the matching parts with the necessary movement buffer to alleviate the impact, thereby ensuring the smooth insertion and removal of the plug. At the same time, the conductive middle clip 3 and the metal plug housing 9 can form an integrated shielding structure, so that the potential of the electromagnetic shielding structure inside and outside the plug is balanced.

[0064] Optionally, refer to Figure 1 , Figure 2 , Figure 4 and Figure 7 In another embodiment, a second notch 305 is formed between the outer side of the root of the combined clamp arm 301 and the right-angle protrusion 304. By providing the second notch 305, the clamping action of the combined clamp arm 301 and the right-angle protrusion 304 can be decoupled to a certain extent, reducing the structural impact of the clamping action of the combined clamp arm 301 on the right-angle protrusion 304, ensuring the matching stability of the right-angle protrusion 304 and the clamping through hole 901; at the same time, the combined clamp arm 301 can be opened more easily, thereby further reducing the plugging resistance and improving the plugging smoothness of the plug.

[0065] Optionally, refer to Figure 1 , Figure 2 , Figure 4 and Figure 7 The plug housing 9 is provided with an avoidance through hole (not shown in the figure), and the avoidance through hole is opposite to the second notch 305; the plug housing 9 is provided with an active buckle (not shown in the figure), and the active buckle is provided with a clip patch (not shown in the figure); the clip patch is used to pass through the avoidance through hole and snap-fit ​​into the second notch 305 as the active buckle rotates, and the clip patch is used to disengage from the second notch 305 as the active buckle rotates.

[0066] After the plug is plugged in, the movable buckle can be pulled to drive the clip patch to engage in the second notch 305 to fill the vacancy of the second notch 305, thereby increasing the resistance when the combined clamp arm 301 is opened, so that the resistance during the holding process after the plug is plugged in is restored to a larger state, thereby ensuring the connection stability after plugging in; and when the plug needs to be unplugged, it is only necessary to pull the movable buckle again to drive the clip patch to disengage from the second notch 305, so that the combined clamp arm 301 is easier to open and the plug-in resistance is reduced.

[0067] Preferably, the material of the clip patch is the same as that of the middle clip 3, so that the integrity of the original structure of the middle clip 3 can be guaranteed during the working process after the plug is inserted, reducing the problem of damaging the original structure of the middle clip 3 due to the opening of the second notch 305, thereby causing adverse effects on the performance of the middle clip 3, and ensuring the signal shielding and electromagnetic radiation interference elimination functions of the middle clip 3 on the upper row of terminals 1 and the lower row of terminals 2.

[0068] Optionally, refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The Type C plug also includes an upper plastic body 4, a lower plastic body 5, an upper plastic sheath 6 and a lower plastic sheath 7;

[0069] The upper plastic body 4 is fixedly matched with the upper portion of the middle clip 3 according to the positioning reference provided by the middle clip 3, and the upper plastic body 4 is used to accommodate the first upper extension portion 102 and the second upper extension portion 103;

[0070] The lower plastic body 5 is fixedly matched with the lower part of the middle clip 3 according to the positioning reference provided by the middle clip 3, and the lower plastic body 5 is used to accommodate the first lower extension part 202 and the second lower extension part 203;

[0071] The upper plastic sheath 6 is fixed to the front of the upper plastic body 4 according to the positioning reference provided by the upper plastic body 4, and the upper plastic sheath 6 is used to support the upper joint 101;

[0072] The lower plastic sheath 7 is fixed to the front of the lower plastic body 5 according to the positioning reference provided by the lower plastic body 5, and the lower plastic sheath 7 is used to support the lower joint 201;

[0073] The circumferential contour formed by the upper plastic body 4 , the upper plastic sheath 6 , the lower plastic body 5 and the lower plastic sheath 7 is snap-fitted with the inner wall of the plug housing 9 .

[0074] In this embodiment, the stress inside the structure can be released through the orderly combination of modular plastic bodies. At the same time, by setting a graded fixing reference, the stability of the combination of the modular plastic bodies is weakened from the center of the terminal to the end. While ensuring the stability of the terminal core fixation, the necessary directional elastic buffering of the plug-in part is supported.

[0075] Among them, each of the matching and fixing methods based on the positioning reference in this embodiment can specifically adopt a shaft-hole matching method, which is not limited here.

[0076] Optionally, refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The Type C plug further includes two EMI shrapnel templates 8 respectively disposed in the upper plastic sheath 6 and the lower plastic sheath 7, and the two EMI shrapnel templates 8 are disposed in parallel in an axisymmetric manner based on a central horizontal plane;

[0077] The EMI spring template 8 includes a rectangular sheet, and a plurality of arc springs 801 are evenly arranged at the front end of the rectangular sheet from left to right, one end of the arc spring 801 is fixed on the rectangular sheet, and the other end of the arc spring 801 is suspended, and the middle of the arc spring 801 protrudes toward the central horizontal plane; the projection of the arc spring 801 on the horizontal plane is located in front of the upper joint 101 and the lower joint 201; the left rear and right rear parts of the rectangular sheet are respectively provided with short-circuit sheets 802, which extend horizontally backward and contact the inner wall of the plug housing 9;

[0078] A group of through holes 601 are respectively formed at the front ends of the upper plastic sheath 6 and the lower plastic sheath 7 . The through holes 601 are arranged in one-to-one correspondence with the arc spring pieces 801 . The middle protrusion of the arc spring piece 801 is passed through the through holes 601 .

[0079] In this embodiment, the additionally formed arc spring clip 801 can ensure the effective shell connection between the plug plug-in part and the socket plug-in part, meet the electromagnetic shielding requirements, and improve the anti-electromagnetic interference performance; the EMI spring clip template 8 can also be used to enhance the overall structural strength of the Type C plug.

[0080] It should be noted that other contents of the Type C plug disclosed in this application can be found in the prior art and will not be repeated here.

[0081] The above are only optional embodiments of the present application, and do not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A Type C plug, characterized in that: The Type C plug includes: An upper row of terminals, the upper row of terminals comprising an upper combining portion, a first upper extension portion, a second upper extension portion and an upper welding portion sequentially connected from front to back, the second upper extension portion being bent downward relative to the first upper extension portion, and an angle between the second upper extension portion and the first upper extension portion being less than 120°; A lower row of terminals, the lower row of terminals being arranged below the upper row of terminals, the lower row of terminals comprising a lower combining portion, a first lower extending portion, a second lower extending portion and a lower welding portion sequentially connected from front to back, the second lower extending portion being bent downward relative to the first lower extending portion, and the lower welding portion and the upper welding portion being arranged in the same plane; A middle clip is disposed between the upper row of terminals and the lower row of terminals, and the middle clip abuts against and cooperates with the upper row of terminals and the lower row of terminals.

2. The Type C plug according to claim 1, characterized in that: The upper row of terminals includes a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal, a seventh terminal, an eighth terminal, a ninth terminal and a tenth terminal arranged at intervals from left to right; the lower row of terminals includes an eleventh terminal and a twelfth terminal arranged at intervals from left to right; The upper welding portion of the first terminal, the upper welding portion of the second terminal, the upper welding portion of the third terminal, the upper welding portion of the fourth terminal, the upper welding portion of the fifth terminal, the upper welding portion of the sixth terminal, the upper welding portion of the seventh terminal, the upper welding portion of the eighth terminal, the upper welding portion of the ninth terminal, the upper welding portion of the tenth terminal, the lower welding portion of the eleventh terminal, and the lower welding portion of the twelfth terminal are arranged in the same plane; The lower welding portion of the eleventh terminal and the lower welding portion of the twelfth terminal are located between the upper welding portion of the ninth terminal and the upper welding portion of the tenth terminal; the lower combining portion of the eleventh terminal is relatively arranged below the upper combining portion of the second terminal, and the lower combining portion of the twelfth terminal is relatively arranged below the upper combining portion of the third terminal.

3. The Type C plug according to claim 2, characterized in that: A rectangular vacant area is formed between the first lower extension portion of the eleventh terminal and the first lower extension portion of the twelfth terminal, and a width of the rectangular vacant area is greater than a distance between the lower welding portion of the eleventh terminal and the lower welding portion of the twelfth terminal.

4. The Type C plug according to claim 1, characterized in that: The middle clip includes a clip body, which is in the shape of a rectangular flat plate and is arranged between the first upper extension portion and the first lower extension portion; a pair of combining clamp arms are arranged in an axially symmetrical manner at the left front and right front portions of the clip body, and the two arms of the combining clamp arms are in the shape of narrow strips and extend forward to the front end portions of the upper combining portion and the lower combining portion, and the front ends of the two arms of the combining clamp arms are provided with inwardly protruding snap-fit ​​protrusions.

5. The Type C plug according to claim 4, characterized in that: A first notch is formed at the connection between the inner side of the root of the combined clamp arm and the clamp body; the width of the two arms of the combined clamp arm gradually decreases from the root to the end, and the two arms of the combined clamp arm form an outward convex arc from the root to the end; And / or, a pair of hook plates are arranged at the left rear and right rear parts of the clip body in an axially symmetrical manner, the hook plates are in the shape of strip plates, the front end of the hook plates is fixed to the clip body, the middle part of the hook plates extends backward and bends downward, and the rear end of the hook plates is arranged in the same plane as the upper welding part and the lower welding part.

6. The Type C plug according to claim 4, characterized in that: The Type C plug also includes a plug shell, and the left and right sides of the plug shell are respectively provided with snap-in holes; the upper row of terminals, the lower row of terminals, and the middle clip are accommodated in the inner cavity of the plug shell; a pair of right-angle protrusions are axially symmetrically arranged in the middle of the left end surface and the middle of the right end surface of the clip body, the front side surface of the right-angle protrusion is an inclined surface deviating inward from back to front, and the rear side surface of the right-angle protrusion is a vertical surface perpendicular to the front and rear directions, and the right-angle protrusion is snap-fitted into the snap-in holes.

7. The Type C plug according to claim 6, characterized in that: A second notch is formed between the outer side of the root of the combined clamp arm and the right-angle protrusion.

8. The Type C plug according to claim 7, characterized in that: The plug housing is provided with an avoidance through hole, which is opposite to the second notch; the plug housing is provided with an active buckle, and the active buckle is provided with a clip patch; the clip patch is used to pass through the avoidance through hole and snap-fit ​​into the second notch as the active buckle rotates, and the clip patch is used to disengage from the second notch as the active buckle rotates.

9. The Type C plug according to claim 6, characterized in that: The Type C plug also includes an upper plastic body, a lower plastic body, an upper plastic sheath and a lower plastic sheath; The upper plastic body is fixedly matched with the upper portion of the middle clip according to the positioning reference provided by the middle clip, and the upper plastic body is used to accommodate the first upper extension portion and the second upper extension portion; The lower plastic body is fixedly matched with the lower part of the middle clip according to the positioning reference provided by the middle clip, and the lower plastic body is used to accommodate the first lower extension part and the second lower extension part; The upper plastic sheath is fixedly matched with the front part of the upper plastic body according to the positioning reference provided by the upper plastic body, and the upper plastic sheath is used to support the upper joint part; The lower plastic sheath is fixedly matched with the front part of the lower plastic body according to the positioning reference provided by the lower plastic body, and the lower plastic sheath is used to support the lower joint part; A circumferential contour formed by the upper plastic body, the upper plastic sleeve, the lower plastic body and the lower plastic sleeve is snap-fitted with an inner wall of the plug housing.

10. The Type C plug according to claim 9, characterized in that: The Type C plug further includes two EMI shrapnel templates respectively arranged in the upper plastic sheath and the lower plastic sheath, and the two EMI shrapnel templates are arranged in parallel in an axisymmetric manner based on a central horizontal plane; The EMI spring sheet template comprises a rectangular sheet, a plurality of arc spring sheets are evenly arranged at the front end of the rectangular sheet from left to right, one end of the arc spring sheet is fixed on the rectangular sheet, the other end of the arc spring sheet is suspended, and the middle part of the arc spring sheet protrudes toward the central horizontal plane; the projection of the arc spring sheet on the horizontal plane is located in front of the upper joint part and the lower joint part; the left rear part and the right rear part of the rectangular sheet are respectively provided with short-circuit sheets, which extend horizontally backward and contact the inner wall of the plug housing; A group of through holes are respectively formed at the front ends of the upper plastic sheath and the lower plastic sheath. The through holes are arranged in one-to-one correspondence with the circular arc spring pieces, and the middle convex part of the circular arc spring piece is penetrated in the through holes.

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