USB type c plug connector

Abstract

The utility model relates to the technical field of type c interfaces, in particular to a USB type c connecting plug which comprises a wire fixing seat, the two ends of the wire fixing seat are communicated, and a wire is inserted into one opening of the wire fixing seat; one end of the terminal shell is in plug-in fit with the other opening of the wire fixing seat, and the other end of the terminal shell extends to the outer side of the wire fixing seat; the terminal shell is internally provided with a containing groove, the terminal strips are arranged in the terminal shell, the terminal strips are arranged in the containing groove, and pins at the two ends of each terminal strip penetrate out of groove openings in the front side and the rear side of the containing groove; one end of the plug is clamped and matched with the terminal shell, the other end of the plug is provided with a plugging groove, and one end of the terminal strip penetrates out of the accommodating groove and then extends into the plugging groove.

Description

Technical Field

[0001] The present application relates to the field of Type C interface technology, and in particular to a USB Type C plug connector. Background Art

[0002] The Type-C connector is defined as a widely used interface designed to provide high-speed data transmission, power transmission, and transmission of video and audio signals. It is usually designed to be flippable and reversible to achieve fast and easy connection regardless of the insertion method.

[0003] Reference Figure 1 In the existing Type-C connector structure, the connector is usually connected to the sub-PCB board and then connected to the main chip circuit module through the PCB module. This connection method is widely used in applications such as consumer electronics, automobiles, industry and enterprise systems.

[0004] However, the existing connector connection method still has certain defects. In the traditional connection method, when the connector pins are connected to the wire, each pin of the connector needs to be welded to the wire one by one, which has a low welding efficiency. Summary of the Invention

[0005] In order to improve the efficiency of welding between pins and wires in a Type-C connector, the present application provides a USB type-c plug connector.

[0006] The present application provides a USB type-C plug connector that adopts the following technical solution:

[0007] A USB type-c plug connector, comprising:

[0008] A wire fixing seat, wherein both ends of the wire fixing seat are connected, and one opening of the wire fixing seat is for inserting wires;

[0009] A terminal shell, one end of which is pluggable with the other opening of the wire fixing seat, and the other end of which extends to the outside of the wire fixing seat;

[0010] Terminal blocks, two groups of which are provided, a receiving groove is provided inside the terminal housing, the terminal blocks are built into the receiving groove, and the pins at both ends of the terminal blocks are passed through the notches on the front and rear sides of the receiving groove;

[0011] A plug, one end of which is engaged with the terminal housing, and the other end of which is provided with a plugging slot, and one end of the terminal row extends from the receiving slot to the inside of the plugging slot;

[0012] A solder groove is provided on the surface of the terminal housing, the solder groove is communicated with the receiving groove, the pins at one end of the terminal row pass through the receiving groove and are carried in the solder groove, and the solder groove is used for performing pre-soldering;

[0013] The terminal rows are provided in two groups, and the two groups of terminal rows are arranged at intervals along the vertical direction, and some pins between the two groups of terminal rows are accommodated in the same solder tank.

[0014] Preferably, the pins of the terminal block include a high-frequency pin and a plurality of other pins, and the plurality of other pins are arranged on one side of the high-frequency pin to enhance the signal strength of the high-frequency pin.

[0015] Preferably, the terminal shell includes an upper shell and a lower shell, and the terminal row is respectively accommodated in the accommodating groove located in the upper shell and the accommodating groove located in the lower shell, the side wall of the plug is provided with a first card slot, and the end side wall of the upper shell and the end side wall of the lower shell are both provided with a first card block, and the first card block is snap-fitted with the first card slot.

[0016] Preferably, it also includes an elastic clamping block, and the upper shell and the lower shell clamp the elastic clamping block up and down. Two clamping parts are provided on one side of the elastic clamping block, and the two clamping parts extend into the interior of the plug-in slot. The two clamping parts can be elastically deformed to clamp an external connector inserted into the interior of the plug-in slot.

[0017] Preferably, the plug is provided with a metal spring, a clearance opening is opened on the surface of the plug, a pressing portion is provided on the surface of the metal spring, the pressing portion extends through the clearance opening into the plug-in slot, and the pressing portion assists in cooperating with the clamping portion to clamp the external plug-in component in the plug-in slot.

[0018] Preferably, a shielding sleeve is further provided on the outside of the plug, both ends of the shielding sleeve are through-through, the side walls of the upper shell and the side walls of the lower shell are both provided with a second card slot, and the two opposite inner walls of the shielding sleeve are both provided with a second card block, and the second card block is engaged with the second card slot.

[0019] Preferably, an isolation cover is inserted into the slot of the plug-in slot, and the isolation cover includes a cover body and a spacer block. The cover body is fixedly connected to the spacer block, and the spacer block is inserted into the interior of the plug-in slot. The two side walls of the spacer block are respectively in contact with the pins of the two terminal rows. The spacer block is used to isolate the pins of the two terminal rows, and the cover body covers the slot of the plug-in slot.

[0020] Preferably, the end of the wire fixing seat is provided with a plurality of arc-shaped extensions, the arc-shaped extensions are fitted to the outer side wall of the shielding sleeve, and the plurality of arc-shaped extensions cooperate with each other to clamp and fix the terminal shell.

[0021] Preferably, the wire fixing seat includes an upper seat and a lower seat, the upper seat and the lower seat cover each other, the side wall of the lower seat is provided with two positioning grooves, and the side wall of the upper seat is integrally formed with two positioning blocks. When the upper seat and the lower seat cover each other, the two positioning blocks are respectively plugged into and matched with the two positioning grooves.

[0022] Preferably, a deformable clamp is fixed to the side wall of the upper seat, and the deformable clamp is used to clamp and fix the wire. A wire supporting member is fixed to the side wall of the lower seat, and the wire supporting member is used to support the wire.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By directly integrating the terminal block with the wire holder and terminal housing, the sub-PCB board used in traditional designs is eliminated, simplifying the internal structure of the plug connector. This design not only reduces the number of components and production costs, but also simplifies the assembly process and improves production efficiency.

[0025] 2. The plug connector in this application can pre-weld the tin liquid into the solder tank by hot-melting to form a pre-weld layer, and then cooperate with the external wire clamp to realize high-frequency welding of the wire. The formation of the pre-weld layer ensures that the welding between the terminal block and the wire can be completed quickly and accurately in the subsequent assembly process, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a connector in the prior art.

[0027] Figure 2 This is a schematic diagram of the overall structure of a USB type-c plug connector according to an embodiment of the present application.

[0028] Figure 3 This is an exploded schematic diagram of a USB type-c plug connector according to an embodiment of the present application.

[0029] Figure 4 This is a diagram of the matching relationship between the terminal shell and the terminal block in the embodiment of the present application.

[0030] Figure 5 yes Figure 4 Schematic diagram of the back structure.

[0031] Figure 6 It is a structural diagram of the terminal block in an embodiment of the present application.

[0032] Figure 7 This is a schematic diagram of the structure of the terminal block in Example 2 of the present application.

[0033] Explanation of reference numerals: 1. Wire holder; 11. Upper seat; 111. Positioning block; 112. Third clamping block; 113. Deformable clamping member; 1131. Protrusion; 1132. Recess; 12. Lower seat; 121. Positioning groove; 122. Third clamping groove; 123. Wire supporting member; 13. Arc-shaped extension; 2. Terminal housing; 21. Upper housing; 22. Lower housing; 23. Accommodating groove; 24. Solder tank; 25. First clamping block; 26. Second card slot; 3. Terminal block; 31. Upper row; 32. Lower row; 3a. High-frequency pin; 3b. Positive power pin; 3c. Ordinary signal pin; 3d. Ground pin; 4. Plug; 41. Plug slot; 42. First card slot; 43. Makeway port; 44. Makeway slot; 5. Elastic clamp; 51. Clamping part; 6. Metal spring; 61. Pressing part; 7. Shielding sleeve; 71. 8. Isolation cover; 81. Cover body; 82. Spacer. DETAILED DESCRIPTION

[0034] The following is combined with Figure 2-Figure 7 This application is described in further detail.

[0035] Example 1:

[0036] The present application embodiment discloses a USB type C plug connector. Figure 2 and Figure 3 A USB type-c plug connector includes a wire fixing seat 1, a terminal shell 2, a terminal block 3, a plug 4 and an elastic clamp 5, wherein the wire fixing seat 1 is used to assemble and fix the wire, the terminal shell 2 is used to accommodate and carry the terminal block 3, the terminal block 3 is used to connect with the wire, the plug 4 realizes the plug-in function of the plug connector and the external plug connector, and the elastic clamp 5 is used to improve the connection stability of the plug connector and the external plug connector.

[0037] Specifically, the wire fixing seat 1 includes an upper seat 11 and a lower seat 12, the upper seat 11 and the lower seat 12 are arranged opposite to each other, and the two side edges of the upper seat 11 and the lower seat 12 are bent, wherein the two side edges of the upper seat 11 are bent toward the lower seat 12, and the two side edges of the lower seat 12 are correspondingly bent toward the upper seat 11. At the same time, the upper seat 11 and the lower seat 12 cover each other, so that the wire fixing seat 1 forms a cavity, and the cavity passes through both ends of the wire fixing seat 1.

[0038] Furthermore, the side walls of the lower seat 12 are provided with two positioning slots 121, and the side walls of the upper seat 11 are integrally formed with two positioning blocks 111. When the upper seat 11 and the lower seat 12 are closed, the two positioning blocks 111 respectively engage with the two positioning slots 121. Simultaneously, two third clamping blocks 112 are integrally formed on both sides of the upper seat 11, and third clamping slots 122 are provided on both sides of the lower seat 12. When the upper seat 11 and the lower seat 12 are closed, the third clamping blocks 112 engage with the third clamping slots 122.

[0039] Therefore, during the assembly process, the upper seat 11 and the lower seat 12 are initially positioned by plugging and fitting the positioning block 111 and the positioning slot 121, and then the upper seat 11 and the lower seat 12 are fixed by snapping and engaging the third clamping block 112 and the third clamping slot 122.

[0040] In addition, since the upper seat 11 and the lower seat 12 cover each other to form a cavity, the USB type-c plug connector in this application needs to insert the wire into the cavity during the wire assembly process. In order to maintain the stability of the wire position, this application also adopts the following solution.

[0041] Specifically, a wire-supporting member 123 is fixed to the end of the lower seat 12. The cross-section of the wire-supporting member 123 is arc-shaped, and the inner arc surface of the wire-supporting member 123 faces the upper seat 11. At the same time, a deformable clamping member 113 is fixed to the side wall of the upper seat 11. The deformable clamping member 113 and the upper seat 11 are integrally formed. In this embodiment, the cross-section of the deformable clamping member 113 is V-shaped, and the V-shaped opening of the deformable clamping member 113 faces the wire-supporting member 123. A protrusion 1131 is provided at one end of the deformable clamping member 113, and a recessed portion 1132 is provided at the other end of the deformable clamping member 113. The shape of the recessed portion 1132 is adapted to the shape of the protrusion 1131.

[0042] Correspondingly, when the wire is inserted into the cavity of the wire fixing seat 1, the inner arc surface of the wire supporting member 123 provides initial support for the wire, and then the two arms of the deformable clamping member 113 are bent, and the two arms of the deformable clamping member 113 cooperate to clamp the wire, and the protrusion 1131 is inserted into the recessed portion 1132 to achieve positioning, thereby fixing the wire, indirectly improving the connection stability between the wire fixing seat 1 and the wire.

[0043] On the other hand, after the wire is inserted into the cavity of the wire holder 1, the wire needs to be high-frequency welded to the pins of the terminal block 3. For this purpose, the terminal shell 2, the terminal block 3 and the plug 4 are specifically connected using the following scheme in the embodiment of the present application.

[0044] Specifically, one end of the terminal shell 2 is plugged into the opening of the cavity of the wire fixing seat 1 away from the deformable clamping part 113, wherein the terminal shell 2 includes an upper shell 21 and a lower shell 22. Correspondingly, there are two groups of terminal blocks 3, and the two groups of terminal blocks 3 are composed of a number of pins. The two groups of terminal blocks 3 are respectively installed in the upper shell 21 and the lower shell 22.

[0045] Correspondingly, multiple accommodating grooves 23 are provided inside the upper shell 21 and the lower shell 22. The two notches of the accommodating grooves 23 pass through the two ends of the upper shell 21 and the lower shell 22. The number of the accommodating grooves 23 matches the number of pins of the terminal row 3. The multiple accommodating grooves 23 are arranged at intervals in the horizontal direction. The terminal row 3 is built into the accommodating grooves 23, that is, each pin of the terminal row 3 is built into the accommodating grooves 23 one by one, and the pins at both ends of the terminal row 3 pass through the front and rear notches of the accommodating groove 23.

[0046] Among them, in order to achieve efficient connection between the wire and the pins of the terminal block 3 in the future, the surface of the upper shell 21 and the lower shell 22 are both provided with a solder groove 24. Taking the upper shell 21 as an example, the solder groove 24 runs through the surface of the end face of the upper shell 21, and the solder groove 24 is connected to one of the notches of the accommodating groove 23. When the pins at one end of the terminal block 3 pass through the notch of the accommodating groove 23, the pins at one end of the terminal block 3 are carried in the solder groove 24, and the solder groove 24 is used to perform pre-soldering. Therefore, the tin liquid is pre-melted into the solder groove 24 to form a pre-soldering layer, and then combined with an external wire clamp to achieve high-frequency welding of the wire. The formation of the pre-soldering layer ensures that the welding between the terminal block 3 and the wire can be completed quickly and accurately during the subsequent assembly process, thereby improving production efficiency.

[0047] In this embodiment, one terminal row 3 has 12 pins, and is defined as an upper row 31, which is correspondingly received in the receiving groove 23 of the upper housing 21. Furthermore, another terminal row 3 has 10 pins, and is defined as a lower row 32, which is correspondingly received in the receiving groove 23 of the lower housing 22.

[0048] Among them, combined Figure 4 、 Figure 5 as well as Figure 6From left to right, the 12 pins in the upper row 31 are defined as the first pin to the twelfth pin. Correspondingly, the first pin of the upper row 31 is bent downward and defined as the ground pin 3d, the second and third pins of the upper row 31 are high-frequency pins 3a, the fourth pin of the upper row 31 is bent downward and defined as the positive power pin 3b, the fifth pin of the upper row 31 is defined as the ordinary signal pin 3c, the sixth and seventh pins of the upper row 31 are defined as the high-frequency pin 3a, the eighth pin of the upper row 31 is defined as the ordinary pin, the ninth pin of the upper row 31 is bent downward and defined as the positive power pin 3b, the tenth and eleventh pins of the upper row 31 are defined as the high-frequency pin 3a, and the twelfth pin of the upper row 31 is defined as the ground pin 3d.

[0049] Correspondingly, taking the accompanying figure of the specification as an example, the 10 pins of the lower row 32 are arranged from left to right and defined as the first pin to the tenth pin, among which the first pin of the lower row 32 is bent downward and defined as the ground pin 3d, the second pin and the third pin of the lower row 32 are defined as the high-frequency pin 3a, the fourth pin of the lower row 32 is defined as the positive power pin 3b, the fifth pin and the sixth pin of the lower row 32 are defined as the ordinary signal pin 3c, the seventh pin of the lower row 32 is defined as the positive power pin 3b, the eighth pin and the ninth pin of the lower row 32 are defined as the high-frequency pin 3a, and the tenth pin of the lower row 32 is defined as the ground pin 3d.

[0050] It should be noted that, in this embodiment, the first pin of the upper row 31 and the tenth pin of the lower row 32 are located in the same solder tank 24, the fourth pin of the upper row 31 and the seventh pin of the lower row 32 are located in the same solder tank 24, the ninth pin of the upper row 31 and the fourth pin of the lower row 32 are located in the same solder tank 24, and the twelfth pin of the upper row 31 and the first pin of the lower row 32 are located in the same solder tank 24.

[0051] On the other hand, the second pin of the upper row 31 and the ninth pin of the lower row 32 form a high-speed pair; the third pin of the upper row 31 and the eighth pin of the lower row 32 form a high-speed pair; the tenth pin of the upper row 31 and the third pin of the lower row 32 form a high-speed pair; and the eleventh pin of the upper row 31 and the second pin of the lower row 32 form a high-speed pair. In this embodiment, a high-speed pair is a pin pair used for high-speed data transmission. In high-speed signal transmission, differential signal transmission is generally used to ensure signal integrity and reduce electromagnetic interference. Correspondingly, a pair of pins, one for transmitting a signal and the other for receiving an inverted signal, is called a high-speed pair.

[0052] Correspondingly, the high-frequency pins 3a included in the upper row 31 and the lower row 32 can be arranged at intervals with several other pins, namely the positive power pin 3b, the normal signal pin 3c and the ground pin 3d, so as to separate the high-frequency signal. The other pins can pass the signal noise and improve the transmission efficiency and quality of the high-frequency pin 3a.

[0053] In summary, the present application defines the function of the pins at the physical level by arranging the pins and changing the structure of the pins (i.e., bending), which is more convenient and quicker than the traditional plug connector that defines the function of the pins by entering a computer program into the sub-PCB board.

[0054] On the other hand, the pin at one end of the terminal block 3 passes through one of the slots of the accommodating groove 23 to cooperate with the wire to realize solder connection. Correspondingly, the pin at the other end of the terminal block 3 passes through another slot of the accommodating groove 23 to cooperate with the external plug-in component to realize electrical signal connection. In this process, the plug 4 is required to provide suitable connection conditions.

[0055] Replay Figure 2 and Figure 3 Specifically, one end of the plug 4 is snap-fitted with the terminal housing 2, and the other end of the plug 4 is provided with an insertion slot 41. One end of the terminal block 3 extends into the insertion slot 41 after passing through the accommodating slot 23. A first snap-fitting slot 42 is provided on the side wall of the plug 4, and first snap-fitting blocks 25 are provided on the end side walls of the upper shell 21 and the end side walls of the lower shell 22. The first snap-fitting blocks 25 snap-fit ​​with the first snap-fitting slot 42, thereby securing the terminal housing 2 and the plug 4.

[0056] Therefore, the external connector can be inserted into the insertion slot 41 on the plug 4, and the port of the external connector contacts the pins of the terminal block 3 to achieve electrical connection. During this process, the insertion slot 41 relatively keeps the position of the external connector stable.

[0057] In addition, in order to further improve the connection stability between the external connector and the plug 4, the elastic clamping block 5 in the embodiment of the present application plays a corresponding role.

[0058] Specifically, the upper shell 21 and the lower shell 22 clamp the elastic clamp 5 from top to bottom. Two clamping portions 51 are provided on one side of the elastic clamp 5. The two clamping portions 51 extend into the interior of the plug slot 41. The two side walls of the plug 4 are provided with clearance grooves 44, which are connected to the plug slot 41. The two clamping portions 51 of the elastic clamp 5 are respectively accommodated in the two clearance grooves 44, which provide space for the clamping portions 51 to deform. The two clamping portions 51 can undergo elastic deformation to clamp an external connector inserted into the plug slot 41. When the external connector is inserted into the plug slot 41, the clamping portions 51 undergo elastic deformation, tightly fitting the connector, thereby significantly improving the stability and reliability of the plug-in connection and reducing the risk of the connector loosening or falling off during use.

[0059] Furthermore, the plug 4 is provided with a metal spring 6, and a clearance opening 43 is opened on the surface of the plug 4, which is connected to the plug-in slot 41. A pressing portion 61 is integrally formed on the surface of the metal spring 6, and the pressing portion 61 extends through the clearance opening 43 into the plug-in slot 41. The pressing portion 61 assists in cooperating with the clamping portion 51 to clamp the external plug-in component in the plug-in slot 41, thereby further improving the stability and reliability of the plug-in.

[0060] Furthermore, to enhance the performance stability of the USB Type-C connector of this application, a shielding sleeve 7 is further provided on the outside of the plug 4. The shielding sleeve 7 is through-connected at both ends, completely enclosing the plug 4. The die-cut shielding sleeve 7 also partially encloses the terminal housing 2. Specifically, second slots 26 are defined on the sidewalls of the upper housing 21 and the lower housing 22. Second retaining blocks (not shown) are provided on the two opposing inner walls of the shielding sleeve 7, which engage with the second slots 26.

[0061] Correspondingly, the shielding sleeve 7 effectively blocks external electromagnetic interference, improving the electromagnetic compatibility of the plug connector and ensuring signal transmission stability and data integrity in complex electromagnetic environments. Furthermore, the shielding sleeve 7 not only provides electromagnetic shielding but also provides additional mechanical protection for the plug 4 and terminal housing 2, preventing damage caused by external impact or extrusion, thereby increasing the durability and service life of the plug connector.

[0062] Furthermore, an isolation cover 8 is inserted into the slot of the plug-in slot 41, and the isolation cover 8 includes a cover body 81 and a spacer block 82. The cover body 81 is fixedly connected to the spacer block 82, and the spacer block 82 is inserted into the inside of the plug-in slot 41. The two side walls of the spacer block 82 are respectively abutted against the pins of the two terminal rows 3. The spacer block 82 is used to isolate the pins of the two terminal rows 3, and the cover body 81 covers the slot of the plug-in slot 41.

[0063] Correspondingly, spacer 82 is inserted into connector slot 41, with its sidewalls tightly abutting the pins of the two terminal blocks 3, effectively isolating the pins and preventing signal crosstalk, ensuring the purity and accuracy of data transmission. Furthermore, cover 81, which covers the notch of connector slot 41, not only prevents dust and foreign matter from entering the slot 41 but also provides additional physical protection for the connector, enhancing its reliability and durability in harsh environments.

[0064] On the other hand, in order to improve the connection strength between the terminal housing 2 and the wire fixing seat 1, the present application also adopts the following solution.

[0065] Specifically, a plurality of arc-shaped extension portions 13 are provided at the end of the wire fixing seat. In the present embodiment, four arc-shaped extension portions 13 are provided, and the four arc-shaped extension portions 13 are circumferentially arranged. The arc-shaped extension portion 13 and the wire fixing seat are integrally formed. The arc-shaped extension portion 13 has deformation capability, and the arc-shaped extension portion 13 is attached to the outer wall of the shielding sleeve 7. The four arc-shaped extension portions 13 cooperate with each other to clamp and fix the terminal shell 2.

[0066] The implementation principle of a USB type-C plug connector in the embodiment of the present application is as follows:

[0067] The wire holder 1 is used to assemble and secure the wires, ensuring a stable connection between the wires and the plug connector. The terminal housing 2 is used to accommodate and support the terminal block 3, providing physical support for signal transmission between the wires and the plug connector. The terminal block 3 is connected to the wires to achieve signal transmission. The plug 4 is responsible for connecting with the external connector to achieve data and power transmission. The design of the elastic clamp 5 further improves the connection stability between the plug connector and the external connector. Through its elastic deformation characteristics, it ensures that the connector is firmly clamped in the plug slot 41, thereby enhancing the mechanical strength and durability of the plug connector and improving the continuity and reliability of data transmission and power supply. Overall, through the synergistic effect of various components, this solution provides a stable, efficient, and reliable connection solution for the USB Type-C plug connector.

[0068] Example 2:

[0069] The difference from Example 1 is that the first pin of the upper row 31 is located at the same horizontal position as the remaining pins, and the first pin of the upper row 31 also serves as the ground pin 3d. In addition, the tenth pin of the lower row 32 is located at the same horizontal position as the remaining pins, and the tenth pin of the lower row 32 also serves as the ground pin 3d. Therefore, compared with Example 1, the terminal row 3 in Example 2 of the present application includes 4 ground pins 3d.

[0070] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A USB type C plug connector, characterized in that: include: A wire fixing seat (1), wherein both ends of the wire fixing seat (1) are connected, and one opening of the wire fixing seat (1) is for inserting a wire; A terminal shell (2), one end of the terminal shell (2) being pluggably engaged with the other opening of the wire fixing seat (1), and the other end of the terminal shell (2) extending to the outside of the wire fixing seat (1); Terminal blocks (3), the terminal blocks (3) are provided with two groups, a receiving groove (23) is provided inside the terminal shell (2), the terminal blocks (3) are built into the receiving groove (23), and the pins at both ends of the terminal blocks (3) are passed through the front and rear notches of the receiving groove (23); A plug (4), one end of the plug (4) is snap-fitted with the terminal housing (2), the other end of the plug (4) is provided with a plug slot (41), and one end of the terminal block (3) passes through the accommodating slot (23) and extends into the interior of the plug slot (41); A solder groove (24) is provided on the surface of the terminal shell (2), the solder groove (24) is communicated with the accommodating groove (23), and the pins at one end of the terminal row (3) pass through the accommodating groove (23) and are carried in the solder groove (24), and the solder groove (24) is used for performing pre-soldering; The terminal rows (3) are provided in two groups, the two groups of terminal rows (3) are spaced apart in a vertical direction, and some pins between the two groups of terminal rows (3) are accommodated in the same solder bath (24).

2. A USB type C plug connector according to claim 1, characterized in that: The pins of the terminal block (3) include a high-frequency pin (3a) and a plurality of other pins, wherein the plurality of other pins are arranged on one side of the high-frequency pin (3a) to enhance the signal strength of the high-frequency pin (3a).

3. The USB type C plug connector according to claim 1, wherein: The terminal shell (2) comprises an upper shell (21) and a lower shell (22); the two groups of terminal rows (3) are respectively accommodated in the accommodating groove (23) located in the upper shell (21) and the accommodating groove (23) located in the lower shell (22); a first card slot (42) is provided on the side wall of the plug (4); the end side wall of the upper shell (21) and the end side wall of the lower shell (22) are both provided with a first card block (25); the first card block (25) is engaged with the first card slot (42).

4. A USB type C plug connector according to claim 3, characterized in that: The invention also includes an elastic clamping block (5), wherein the upper shell (21) and the lower shell (22) clamp the elastic clamping block (5) from top to bottom, and two clamping portions (51) are provided on one side of the elastic clamping block (5), and the two clamping portions (51) extend into the interior of the plug-in slot (41). The two clamping portions (51) can be elastically deformed to clamp an external plug-in component inserted into the interior of the plug-in slot (41).

5. The USB type C plug connector according to claim 4, characterized in that: The plug (4) is provided with a metal spring (6), a clearance opening (43) is provided on the surface of the plug (4), a pressing portion (61) is provided on the surface of the metal spring (6), the pressing portion (61) passes through the clearance opening (43) and extends into the plug slot (41), and the pressing portion (61) assists in cooperating with the clamping portion (51) to clamp the external plug-in component in the plug slot (41).

6. The USB type C plug connector according to claim 4, characterized in that: The outside of the plug (4) is also provided with a shielding sleeve (7), both ends of the shielding sleeve (7) are connected, the side wall of the upper shell (21) and the side wall of the lower shell (22) are both provided with a second card slot (26), and the two opposite inner walls of the shielding sleeve (7) are both provided with a second card block, and the second card block is engaged with the second card slot (26).

7. The USB type C plug connector according to claim 4, characterized in that: An isolation cover (8) is inserted into the slot of the plug-in slot (41), and the isolation cover (8) includes a cover body (81) and a spacer (82). The cover body (81) is fixedly connected to the spacer (82). The spacer (82) is inserted into the inside of the plug-in slot (41). The two side walls of the spacer (82) are respectively in contact with the pins of the two terminal blocks (3). The spacer (82) is used to isolate the pins of the two terminal blocks (3). The cover body (81) covers the slot of the plug-in slot (41).

8. The USB type C plug connector according to claim 6, characterized in that: The end of the wire fixing seat (1) is provided with a plurality of arc-shaped extensions (13), the arc-shaped extensions (13) are fitted to the outer side wall of the shielding sleeve (7), and the plurality of arc-shaped extensions (13) cooperate with each other to clamp and fix the terminal shell (2).

9. The USB type C plug connector according to claim 1, characterized in that: The wire fixing seat (1) comprises an upper seat (11) and a lower seat (12); the upper seat (11) and the lower seat (12) cover each other; the side wall of the lower seat (12) is provided with two positioning grooves (121); the side wall of the upper seat (11) is integrally formed with two positioning blocks (111); when the upper seat (11) and the lower seat (12) cover each other, the two positioning blocks (111) are respectively plugged into and matched with the two positioning grooves (121).

10. The USB type C plug connector according to claim 9, characterized in that: A deformable clamping member (113) is fixed to the side wall of the upper seat (11), and the deformable clamping member (113) is used to clamp and fix the wire. A wire supporting member (123) is fixed to the side wall of the lower seat (12), and the wire supporting member (123) is used to support the wire.

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