Built-in resistor TYPE-C connector and manufacturing process thereof

Abstract

The invention discloses a built-in resistor TYPE-C connector and a manufacturing process thereof. The built-in resistor TYPE-C connector comprises an upper-row terminal assembly and a lower-row terminal assembly, the lower-row terminal assembly comprises a first lower terminal, a second lower terminal, a third lower terminal and a fourth lower terminal which are arranged side by side at intervals; the first lower terminal is provided with a first upper contact part, and the other first lower terminal is provided with a first lower contact part; the second lower terminal is provided with a second upper contact part, and the other second lower terminal is provided with a second lower contact part; the third lower terminal is provided with a third lower contact part; the fourth lower terminal is provided with a fourth lower contact part; the upper-row terminal assembly comprises a first upper terminal and a second upper terminal; the first upper terminal extends to a position right above the third contact part; the second upper terminal extends to a position right above the fourth contact part; the tail end of the first upper terminal is connected with the tail end of the fourth lower terminal; resistance elements are electrically connected between the tail end of the third lower terminal and the tail end of the second upper terminal and the tail end of the corresponding first lower terminal. User requirements are met, and electrical reliability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and more specifically, to an internal resistance TYPE-C connector and its manufacturing process. Background Art

[0002] Existing TYPE-C connectors have the function of being inserted in either direction. To meet the USB-PD protocol, CC pins are provided for determining the insertion direction and VCONN power supply. Therefore, 6 PINs are arranged at the front end of the existing TYPE-C connector and then converted into 2 PINs at the tail end and led out by wires.

[0003] However, within the effective space of the existing TYPE-C connector, if additional PINs are needed to meet other functional requirements of users, the spacing between the PINs and the width of the PINs need to be reduced, which will reduce the electrical reliability of the TYPE-C connector. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned drawbacks, and provide an internal resistance TYPE-C connector and its manufacturing process, which can achieve the effect of converting 8 PINs into a 3-PIN structure within the limited space of the existing TYPE-C connector, meet the needs of users, and is conducive to ensuring the electrical performance between the terminals, with high electrical reliability.

[0005] To achieve the above purpose, the specific solutions of the present invention are as follows:

[0006] In the first aspect of the present invention, an internal resistance TYPE-C connector is provided, including an upper row terminal assembly and a lower row terminal assembly;

[0007] The lower row terminal assembly includes two first lower terminals, two second lower terminals, a third lower terminal, and a fourth lower terminal arranged side by side at intervals; the two second lower terminals are located between the two first lower terminals; the third lower terminal and the fourth lower terminal are located between the two second lower terminals; one of the first lower terminals is provided with a first upper contact portion, and the other first lower terminal is provided with a first lower contact portion; one of the second lower terminals is provided with a second upper contact portion, and the other second lower terminal is provided with a second lower contact portion; the third lower terminal is provided with a third lower contact portion; the fourth lower terminal is provided with a fourth lower contact portion; the tails of the two first lower terminals are connected; the tails of the two second lower terminals are connected;

[0008] The upper row terminal assembly includes a first upper terminal and a second upper terminal arranged side by side at intervals; the front end of the first upper terminal extends directly above the third contact portion; the front end of the second upper terminal extends directly above the fourth contact portion; the tail end of the first upper terminal is connected to the tail end of the fourth lower terminal; a resistance element is electrically connected between the tail end of the third lower terminal and the tail end of the second upper terminal and the corresponding tail end of the first lower terminal respectively.

[0009] Preferably, the built-in resistor TYPE-C connector further includes a plastic base; the upper row terminal assembly and the lower row terminal assembly are both arranged in the plastic base; a front connection part is provided at the front end of the plastic base;

[0010] The first upper contact part, the second upper contact part, the front end of the first upper terminal and the front end of the second upper terminal all expose the upper surface of the front connection part; the first lower contact part, the second lower contact part, the third lower contact part and the fourth lower contact part all expose the lower surface of the front connection part.

[0011] Preferably, the lower row terminal assembly further includes a lower row seat; the lower row seat is arranged in the plastic base; the first lower terminal, the second lower terminal, the third lower terminal and the fourth lower terminal are arranged on the lower row seat;

[0012] The upper row terminal assembly further includes an upper row seat; the upper row seat is arranged in the plastic base; the first upper terminal and the second upper terminal are arranged on the upper row seat.

[0013] Preferably, the first lower terminal, the second lower terminal, the third lower terminal and the fourth lower terminal are molded with the lower row seat; the first upper terminal and the second upper terminal are molded with the upper row seat.

[0014] Preferably, after the lower row seat and the upper row seat are buckled up and down, they are molded with the plastic base.

[0015] Preferably, a tail end connection part is provided at the tail end of the plastic base; the resistance element is located on the tail end connection part;

[0016] After the tails of the two first lower terminals are connected, a first welding part that exposes the surface of the tail end connection part is provided at the tail end connection part; after the tails of the two second lower terminals are connected, a second welding part that exposes the surface of the tail end connection part is provided at the tail end connection part; after the tail end of the first upper terminal is connected to the tail end of the fourth lower terminal, a third welding part that exposes the surface of the tail end connection part is provided at the tail end connection part.

[0017] Preferably, one resistance element is connected between the tail end of the third lower terminal and the tail end of the first lower terminal by welding, and the other resistance element is connected between the tail end of the second upper terminal and the tail end of the first lower terminal by welding.

[0018] Preferably, one resistance element is respectively connected between the tail end of the third lower terminal and the tail end of the first lower terminal by dispensing or screen printing, and the other resistance element is respectively connected between the tail end of the second upper terminal and the tail end of the first lower terminal by dispensing or screen printing.

[0019] Preferably, the plastic base is respectively provided with connection grooves corresponding to each resistance element, and the resistance elements are accommodated in the connection grooves.

[0020] In the second aspect of the present invention, a manufacturing process of the built-in resistor TYPE-C connector as described above is provided, specifically including the following steps:

[0021] Mold the first upper terminal and the second upper terminal with the upper row socket to obtain an upper row terminal assembly; mold the first lower terminal, the second lower terminal, the third lower terminal, and the fourth lower terminal with the lower row socket to obtain a lower row terminal assembly;

[0022] Combine and assemble the obtained upper row terminal assembly and the lower row terminal assembly to obtain a terminal group; mold the obtained terminal group with a plastic base;

[0023] Electrically connect resistance elements between the third lower terminal and the first lower terminal, and between the second upper terminal and the first lower terminal respectively, so as to obtain a built-in resistor TYPE-C connector.

[0024] The beneficial effects of the present invention are as follows: by arranging an upper row terminal assembly and a lower row terminal assembly in the plastic base, and forming positive and negative terminal pairs between the first upper terminal and the fourth lower terminal, and between the second upper terminal and the third lower terminal respectively, the present invention achieves the effect of converting an 8PIN structure into a 3PIN structure within the limited space of the existing TYPE-C connector, meets the user's needs, is conducive to ensuring the electrical performance between terminals, has high electrical reliability, reasonable structural layout, and saves manufacturing costs. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram provided by Embodiment 1 of the present invention;

[0026] Figure 2 is a schematic structural diagram of another perspective provided by Embodiment 1 of the present invention;

[0027] Figure 3 is a schematic structural diagram provided by Embodiment 1 of the present invention after hiding the metal shell;

[0028] Figure 4 is a schematic structural diagram of another perspective provided by Embodiment 1 of the present invention after hiding the metal shell;

[0029] Figure 5 is a schematic structural diagram provided by Embodiment 1 of the present invention after hiding the metal shell, resistance elements, and protective layer;

[0030] Figure 6 is a schematic structural diagram of the cooperation between the lower row terminal assembly and the upper row terminal assembly provided by Embodiment 1 of the present invention;

[0031] Figure 7It is a schematic structural diagram of the cooperation between the lower row terminal assembly and the upper row terminal assembly provided in the first embodiment of the present invention from another perspective;

[0032] Figure 8 It is a partial schematic structural diagram of the cooperation between the lower row terminal assembly and the upper row terminal assembly provided in the first embodiment of the present invention;

[0033] Figure 9 It is a partial schematic structural diagram of the cooperation between the lower row terminal assembly and the upper row terminal assembly provided in the first embodiment of the present invention from another perspective;

[0034] Figure 10 It is a schematic structural diagram of the upper row terminal assembly provided in the first embodiment of the present invention;

[0035] Figure 11 It is a schematic structural diagram of the upper row terminal assembly provided in the first embodiment of the present invention from another perspective;

[0036] Figure 12 It is a schematic structural diagram of the lower row terminal assembly provided in the first embodiment of the present invention;

[0037] Figure 13 It is a schematic structural diagram of the lower row terminal assembly provided in the first embodiment of the present invention from another perspective;

[0038] Figure 14 It is a partial schematic structural diagram of the lower row terminal assembly provided in the first embodiment of the present invention;

[0039] Figure 15 It is a schematic structural diagram provided in the second embodiment of the present invention;

[0040] Explanation of reference numerals: 1, plastic base; 11, front end connection part; 12, tail end connection part; 121, step part; 122, connection groove; 123, accommodation groove; 13, buckle; 2, metal shell; 21, card hole; 3, upper row terminal assembly; 31, upper row seat; 311, buckle hole; 312, first boss; 32, first upper terminal; 33, second upper terminal; 4, lower row terminal assembly; 41, lower row seat; 411, buckle post; 412, second boss; 42, first lower terminal; 421, first upper contact part; 422, first lower contact part; 423, first tail terminal; 43, second lower terminal; 431, second upper contact part; 432, second lower contact part; 433, second tail terminal; 44, third lower terminal; 441, third lower contact part; 45, fourth lower terminal; 451, fourth lower contact part; 5, resistance element; 6, protective layer. Detailed implementation manners

[0041] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments, and the scope of implementation of the present invention is not limited thereto.

[0042] Embodiment 1: As Figures 1 to 14 shown, a built-in resistor TYPE-C connector described in this embodiment includes a plastic base 1, a metal shell 2, an upper row terminal assembly 3, and a lower row terminal assembly 4.

[0043] The plastic base 1 is preferably made of high-temperature resistant rubber particles. The front end of the plastic base 1 is provided with a front end connection portion 11; the front end connection portion 11 and the middle part of the plastic base 1 are in a stepped structure; the metal shell 2 is sleeved on the plastic base 1 and covers the outer periphery of the front end connection portion 11 to play a shielding role; further, the tail end of the metal shell 2 is provided with a clamping hole 21, and the plastic base 1 is provided with a clamping buckle 13. The clamping buckle 13 is clamped into the clamping hole 21 to increase the connection stability between the metal shell 2 and the plastic base 1, the structure is more reliable, and the metal shell 2 is prevented from falling off.

[0044] Both the upper row terminal assembly 3 and the lower row terminal assembly 4 are arranged in the plastic base 1. Specifically, the lower row terminal assembly 4 includes two first lower terminals 42, two second lower terminals 43, a third lower terminal 44, and a fourth lower terminal 45 that are arranged side by side at intervals; the two second lower terminals 43 are located between the two first lower terminals 42; the third lower terminal 44 and the fourth lower terminal 45 are located between the two second lower terminals 43;

[0045] One first lower terminal 42 is provided with a first upper contact portion 421 that exposes the upper surface of the front end connection portion 11, and the other first lower terminal 42 is provided with a first lower contact portion 422 that exposes the lower surface of the front end connection portion 11; one second lower terminal 43 is provided with a second upper contact portion 431 that exposes the upper surface of the front end connection portion 11, and the other second lower terminal 43 is provided with a second lower contact portion 432 that exposes the lower surface of the front end connection portion 11; the third lower terminal 44 is provided with a third lower contact portion 441 that exposes the lower surface of the front end connection portion 11; the fourth lower terminal 45 is provided with a fourth lower contact portion 451 that exposes the lower surface of the front end connection portion 11; the tails of the two first lower terminals 42 are connected and then connected to a connecting wire; the tails of the two second lower terminals 43 are connected and then connected to a connecting wire.

[0046] The upper row terminal assembly 3 includes a first upper terminal 32 and a second upper terminal 33 that are arranged side by side at intervals; the front end of the first upper terminal 32 extends to directly above the third contact portion; the front end of the second upper terminal 33 extends to directly above the fourth contact portion; the tail end of the first upper terminal 32 is connected to the tail end of the fourth lower terminal 45 and then connected to a connecting wire; a resistor element 5 is electrically connected between the tail end of the third lower terminal 44 and the tail end of one first lower terminal 42, and between the tail end of the second upper terminal 33 and the tail end of the other first lower terminal 42 respectively; the front ends of the first upper terminal 32 and the second upper terminal 33 both expose the upper surface of the front end connection portion 11.

[0047] In practical applications, the two first lower terminals 42 are GND conductive terminals, the two second lower terminals 43 are VBUS conductive terminals, the third lower terminal 44 is a CC1 conductive terminal, the second upper terminal 33 is a CC2 conductive terminal, and the fourth lower terminal 45 and the first upper terminal 32 are functional PIN pins.

[0048] In this embodiment, the resistance value of the resistance element 5 can be set to 5.1 KΩ, or can be set according to actual usage needs, and is not limited here.

[0049] In this embodiment, by arranging the upper row terminal assembly 3 and the lower row terminal assembly 4 in the plastic base 1, and enabling the first upper terminal 32 and the fourth lower terminal 45, and the second upper terminal 33 and the third lower terminal 44 to form positive and negative terminal pairs respectively, the effect of converting an 8PIN structure into a 3PIN structure is achieved within the limited space of the existing TYPE-C connector, meeting the user's needs, facilitating the guarantee of the electrical performance between the terminals, having high electrical reliability, reasonable structural layout, and saving manufacturing costs.

[0050] As Figure 9 shown, in some embodiments of the built-in resistance TYPE-C connector of this embodiment, the tails of the two first lower terminals 42 are connected by a first tail terminal 423; by providing the first tail terminal 423, the electrical connection between the two first lower terminals 42 is facilitated; preferably, the first tail terminal 423 is integrally formed with the two first lower terminals 42 to enhance the electrical reliability between the two first lower terminals 42.

[0051] As Figure 9 shown, in some embodiments of the built-in resistance TYPE-C connector of this embodiment, the tails of the two second lower terminals 43 are connected by a second tail terminal 433; by providing the second tail terminal 433, the electrical connection between the two second lower terminals 43 is facilitated; preferably, the second tail terminal 433 is integrally formed with the two second lower terminals 43 to enhance the electrical reliability between the two second lower terminals 43.

[0052] As Figures 6 to 9 、 Figures 12 to 14 shown, in some embodiments of the built-in resistance TYPE-C connector of this embodiment, the lower row terminal assembly 4 further includes a lower row seat 41; the lower row seat 41 is arranged in the plastic base 1; the first lower terminal 42, the second lower terminal 43, the third lower terminal 44, and the fourth lower terminal 45 are arranged on the lower row seat 41; by providing the lower row seat 41, the positions of the first lower terminal 42, the second lower terminal 43, the third lower terminal 44, and the fourth lower terminal 45 are fixed. Preferably, the first lower terminal 42, the second lower terminal 43, the third lower terminal 44, and the fourth lower terminal 45 are molded with the lower row seat 41, and the structural reliability is higher.

[0053] AsFigure 6 , Figure 10 and Figure 11 As shown in Figure 6 , Figure 10 and Figure 11 , in some embodiments, the built-in resistor TYPE-C connector of this embodiment, the upper row terminal assembly 3 further includes an upper row seat 31; the upper row seat 31 is arranged in the plastic base 1; the first upper terminal 32 and the second upper terminal 33 are arranged on the upper row seat 31; by setting the upper row seat 31, the positions of the first upper terminal 32 and the second upper terminal 33 are fixed. Preferably, the first upper terminal 32 and the second upper terminal 33 are molded with the upper row seat 31; with such a setting, the structural reliability is higher.

[0054] In some embodiments, the built-in resistor TYPE-C connector of this embodiment, after the lower row seat 41 and the upper row seat 31 are buckled up and down, they are molded with the plastic base 1. That is to say, by combining the upper row terminal assembly 3 and the lower row terminal assembly 4 and then molding them with the plastic base 1, the reliability of the overall structure is enhanced, and each terminal is fixed more firmly. In this embodiment, the upper row seat 31 and the lower row seat 41 are buckled and connected up and down; with such a setting, it is convenient for the assembly of the upper row terminal assembly 3 and the lower row terminal assembly 4.

[0055] As Figure 6 , Figures 10 to 12 As shown in Figure 6 and Figures 10 to 12 , in some embodiments, the built-in resistor TYPE-C connector of this embodiment, a buckle hole 311 is provided in the middle of the upper row seat 31; a buckle post 411 protrudes from the middle of the lower row seat 41; the buckle post 411 penetrates into the buckle hole 311. During assembly, the buckle post 411 of the lower row seat 41 is inserted into the buckle hole 311 of the upper row seat 31, so as to assemble the upper row terminal assembly 3 and the lower row terminal assembly 4 together, and then perform molding with the plastic base 1; this is beneficial for the position correspondence of the upper and lower terminals.

[0056] As Figure 10 and Figure 12 As shown in Figure 10 and Figure 12 , in some embodiments, the built-in resistor TYPE-C connector of this embodiment, several first bosses 312 are provided on the upper surface of the upper row seat 31; several second bosses 412 are provided on both the upper and lower surfaces of the lower row seat 41; the plastic base 1 is provided with first hole positions corresponding to the first bosses 312 and second hole positions corresponding to the second bosses 412. In this embodiment, by setting the cooperation of the first bosses 312 and the first hole positions, the combination between the upper row seat 31 and the plastic base 1 is made more firm, and by the cooperation of the second bosses 412 and the second hole positions, the combination between the lower row seat 41 and the plastic base 1 is made more firm.

[0057] As Figures 1 to 5As shown, in some embodiments, the built-in resistor TYPE-C connector of this embodiment has a tail connection portion 12 provided at the tail end of the plastic base 1; preferably, the front connection portion 11, the tail connection portion 12 and the plastic base 1 are integrally formed, with better structural strength;

[0058] The resistor element 5 is located on the tail connection portion 12; after the tails of the two first lower terminals 42 are connected, a first welding portion exposed on the surface of the tail connection portion 12 is provided at the tail connection portion 12; after the tails of the two second lower terminals 43 are connected, a second welding portion exposed on the surface of the tail connection portion 12 is provided at the tail connection portion 12; after the tail of the first upper terminal 32 is connected to the tail of the fourth lower terminal 45, a third welding portion exposed on the surface of the tail connection portion 12 is provided at the tail connection portion 12; in this embodiment, by providing the first welding portion, the second welding portion and the third welding portion, it is convenient for welding the terminals to the connecting wires.

[0059] In some embodiments, the built-in resistor TYPE-C connector of this embodiment has one of the resistor elements 5 connected between the tail of the third lower terminal 44 and the tail of the first lower terminal 42 by means of dispensing or screen printing respectively, and the other resistor element 5 connected between the tail of the second upper terminal 33 and the tail of the first lower terminal 42 by means of dispensing or screen printing respectively. In the built-in resistor TYPE-C connector of this embodiment, the plastic base 1 is respectively provided with connection grooves 122 corresponding to each resistor element 5, and the resistor element 5 is accommodated in the connection grooves 122. By providing communication grooves, the resistor element 5 is formed in the connection grooves 122, so as to control the resistance accuracy.

[0060] In order to enable the dispensing or screen printing operation to be applied in the narrow space of the TYPE-C connector to ensure the resistance value accuracy of the resistor element 5. As Figures 3 to 5 shown, in some embodiments, the tail connection portion 12 of the plastic base 1 of the built-in resistor TYPE-C connector of this embodiment is provided with a stepped portion 121; the stepped portion 121 is an upwardly convex platform structure, and the stepped portion 121 is respectively provided with connection grooves 122 corresponding to each resistor element 5; the resistor element 5 is accommodated in the connection grooves 122; in this embodiment, by providing the connection grooves 122, it is convenient for the setting of the resistor element 5, and conductive glue or conductive ink is placed in the connection grooves 122 by means of dispensing or screen printing, and the conductive glue or conductive ink forms the required resistor element 5 in the connection grooves 122, so that the required resistor element 5 is made of conductive glue or conductive ink in the narrow space of the built-in resistor TYPE-C connector, without STM welding operation, with lower manufacturing cost, and making the connection between the resistor element 5 and the terminal more firm and not easy to fall off.

[0061] To protect the resistor element 5 within the connection groove 122, in some embodiments of the built-in resistor TYPE-C connector of the present embodiment, a receiving groove 123 is recessed in the stepped portion 121; the connection groove 122 is provided at the bottom of the receiving groove 123; and a protective layer 6 is provided within the receiving groove 123. By providing the protective layer 6 in this embodiment to shield and protect the resistor element 5 within the receiving groove 123, the structure is more reliable in use. Preferably, the protective layer 6 is a nano-coating.

[0062] Embodiment Two: As Figure 15 shown, the difference between this embodiment and Embodiment One lies in the setting manner of the resistor element 5. In this embodiment, one of the resistor elements 5 is connected between the tail ends of the third lower terminal 44 and the first lower terminal 42 by soldering, and the other resistor element 5 is connected between the tail ends of the second upper terminal 33 and the first lower terminal 42 by soldering. The remaining structures are the same as those in Embodiment One and will not be elaborated here. The resistor element 5 adopts the STM patch soldering method, which occupies less space. To facilitate the soldering operation of the resistor element 5, the stepped portion 121 is a downwardly concave planar structure.

[0063] The built-in resistor TYPE-C connectors of Embodiment One and Embodiment Two of the present invention can be obtained through the following steps: First, the first upper terminal 32 and the second upper terminal 33 are molded with the upper row seat 31 to obtain the upper row terminal assembly 3, and the first lower terminal 42, the second lower terminal 43, the third lower terminal 44, and the fourth lower terminal 45 are molded with the lower row seat 41 to obtain the lower row terminal assembly 4;

[0064] The obtained upper row terminal assembly 3 and lower row terminal assembly 4 are combined and assembled to obtain the terminal group; the obtained terminal group is molded with the plastic base 1;

[0065] Then, resistor elements 5 are electrically connected between the third lower terminal 44 and the first lower terminal 42 and between the second upper terminal 33 and the first lower terminal 42 respectively; the metal shell 2 is sleeved on the plastic base 1; thus, the built-in resistor TYPE-C connector is obtained.

[0066] In this embodiment, by separately molding the upper row terminal assembly 3 and the lower row terminal assembly 4 once and then assembling them, and then performing secondary molding with the plastic base 1, the overall structure is more compact, the structure is more reliable and firm, and the manufacturing cost is low.

[0067] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structures, features, and principles described in the scope of the present invention patent application are included in the protection scope of the present invention patent application.

Claims

1. A TYPE-C connector with built-in resistor, characterized in that: It includes an upper row terminal assembly and a lower row terminal assembly; The lower row terminal assembly includes two first lower terminals, two second lower terminals, a third lower terminal and a fourth lower terminal arranged side by side at intervals; the two second lower terminals are located between the two first lower terminals; the third lower terminal and the fourth lower terminal are located between the two second lower terminals; one first lower terminal is provided with a first upper contact portion, and the other first lower terminal is provided with a first lower contact portion; one second lower terminal is provided with a second upper contact portion, and the other second lower terminal is provided with a second lower contact portion; the third lower terminal is provided with a third lower contact portion; the fourth lower terminal is provided with a fourth lower contact portion; the tail ends of the two first lower terminals are connected; the tail ends of the two second lower terminals are connected; The upper row terminal assembly includes a first upper terminal and a second upper terminal arranged side by side at intervals; the front end of the first upper terminal extends to just above the third contact portion; The front end of the second upper terminal extends to just above the fourth contact portion; The tail end of the first upper terminal is connected to the tail end of the fourth lower terminal; a resistor element is electrically connected between the tail end of the third lower terminal and the tail end of the second upper terminal and the corresponding tail end of the first lower terminal.

2. A TYPE-C connector with built-in resistor according to claim 1, characterized in that: The built-in resistor TYPE-C connector also includes a plastic base; the upper row terminal assembly and the lower row terminal assembly are both arranged in the plastic base; the front end of the plastic base is provided with a front end connecting portion; The first upper contact portion, the second upper contact portion, the front end of the first upper terminal and the front end of the second upper terminal all expose the upper surface of the front end connecting portion; the first lower contact portion, the second lower contact portion, the third lower contact portion and the fourth lower contact portion all expose the lower surface of the front end connecting portion.

3. A TYPE-C connector with built-in resistor according to claim 2, characterized in that: The lower row terminal assembly also includes a lower row seat; the lower row seat is arranged in the plastic base; the first lower terminal, the second lower terminal, the third lower terminal and the fourth lower terminal are arranged in the lower row seat; The upper row terminal assembly also includes an upper row seat; the upper row seat is arranged in the plastic base; the first upper terminal and the second upper terminal are arranged in the upper row seat.

4. A TYPE-C connector with built-in resistor according to claim 3, characterized in that: The first lower terminal, the second lower terminal, the third lower terminal and the fourth lower terminal are molded with the lower seat; the first upper terminal and the second upper terminal are molded with the upper seat.

5. A TYPE-C connector with built-in resistor according to claim 3, characterized in that: The lower row seat and the upper row seat are buckled up and down and then molded with the plastic base.

6. A TYPE-C connector with built-in resistor according to claim 2, characterized in that: The tail end of the plastic base is provided with a tail end connection portion; the resistor element is located on the tail end connection portion; After the tail ends of the two first lower terminals are connected, a first welding portion exposing the surface of the tail end connection portion is provided at the tail end connection portion; after the tail ends of the two second lower terminals are connected, a second welding portion exposing the surface of the tail end connection portion is provided at the tail end connection portion; after the tail end of the first upper terminal is connected to the tail end of the fourth lower terminal, a third welding portion exposing the surface of the tail end connection portion is provided at the tail end connection portion.

7. A TYPE-C connector with built-in resistor according to claim 1, characterized in that: One of the resistor elements is connected between the tail end of the third lower terminal and the tail end of the first lower terminal by welding, and the other resistor element is connected between the tail end of the second upper terminal and the tail end of the first lower terminal by welding.

8. The TYPE-C connector with built-in resistor according to claim 1, characterized in that: One of the resistor elements is connected between the tail end of the third lower terminal and the tail end of the first lower terminal by dispensing or screen printing, and the other resistor element is connected between the tail end of the second upper terminal and the tail end of the first lower terminal by dispensing or screen printing.

9. A TYPE-C connector with built-in resistor according to claim 8, characterized in that: The plastic base is provided with a connection groove corresponding to each resistor element, and the resistor element is accommodated in the connection groove.

10. A manufacturing process of a TYPE-C connector with built-in resistor as claimed in claim 3, characterized in that: The steps include: Molding the first upper terminal and the second upper terminal with the upper row seat to obtain an upper row terminal assembly; molding the first lower terminal, the second lower terminal, the third lower terminal and the fourth lower terminal with the lower row seat to obtain a lower row terminal assembly; Assembling the obtained upper row terminal assembly and the lower row terminal assembly to obtain a terminal group; molding the obtained terminal group and the plastic base; Resistor elements are electrically connected between the third lower terminal and the first lower terminal and between the second upper terminal and the first lower terminal, respectively, so as to obtain a TYPE-C connector with built-in resistor.

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