TWI835480B - Module connector and assembly method thereof - Google Patents

Abstract

A module connector includes an insulating body, a plurality of conductive terminals, a cable module and a metal shell. The insulating body includes a mating surface, an installation surface and an installation space extending through the installation surface. The cable module includes an insulating block and a plurality of cables fixed to the insulating block. The insulating block is received in the installation space. The cables are in electrical contact with the conductive terminals. The metal shell is fixed to the insulating body. The metal shell includes a stop elastic arm extending into the installation space. The insulating block includes a protrusion. The stop elastic arm is configured to abut against the protrusion so as to prevent the insulating block from exiting the installation space. The present invention also discloses an assembly method of the module connector.

Description

Modular connector and assembly method thereof

The invention relates to a modular connector and an assembly method thereof, and belongs to the technical field of connectors.

Modular connectors in the related art (such as RJ45 cable connectors) usually include an insulating body, a metal shell covering the insulating body, a plurality of cables installed in the insulating body, and a plurality of cables installed in the insulating body. A plurality of conductive terminals on and electrically connected to the plurality of cables.

After the aforementioned module connector and the mating connector (such as an RJ45 socket connector) are continuously plugged and unplugged, the aforementioned cable is prone to loosening, thereby reducing the reliability of the product.

The object of the present invention is to provide a highly reliable modular connector and an assembly method thereof.

In order to achieve the foregoing object, the present invention adopts the following technical solution: a modular connector, which includes: an insulating body. The insulating body includes a butt surface, a mounting surface, a plurality of terminal receiving grooves penetrating the butt surface, and a plurality of terminal receiving grooves penetrating the mounting surface. Installation space; a plurality of conductive terminals, the conductive terminals are installed in the corresponding terminal receiving grooves, the conductive terminals include a butt portion exposed to the butt surface, the butt portion is configured to contact the terminal of the butt connector; the cable mold The aforementioned cable module includes an insulating block and a plurality of cables installed on the aforementioned insulating block. The aforementioned insulating block is accommodated in the aforementioned installation space, and the aforementioned cables are in electrical contact with the aforementioned conductive terminal; and Metal shell, the metal shell is fixed on the insulating body, the metal shell includes a stop elastic arm protruding into the installation space; wherein the insulating block includes a terminal mounting surface, a cable mounting surface, and a A plurality of slots on the terminal installation surface, cable installation grooves penetrating the cable installation surface, and bumps, the aforementioned slots are aligned with and connected to the corresponding terminal receiving grooves, and the aforementioned cable installation grooves are aligned with and connected to the corresponding aforementioned slots. The grooves are connected; the stop elastic arm is configured to abut the protrusion to prevent the insulating block from exiting the installation space.

As a further improved technical solution of the present invention, the aforementioned insulating body includes a first side wall, a second side wall opposite to the aforementioned first side wall, and a first surface opposite to the aforementioned butt surface; the aforementioned metal shell includes a first wall portion, a third One side wall portion, a second side wall portion opposite to the aforementioned first side wall portion, and a second wall portion connecting the aforementioned first side wall portion and the aforementioned second side wall portion; wherein the aforementioned first wall portion abuts against the aforementioned first surface On the top, the first side wall portion abuts on the first side wall, the second side wall portion abuts on the second side wall, and the second wall portion abuts on the butt surface.

As a further improved technical solution of the present invention, the aforementioned stop spring arm is integrally extended from the aforementioned second wall portion.

As a further improved technical solution of the present invention, the aforementioned convex block includes a first convex block and a second convex block, the aforementioned first convex block is provided with a first stop surface, and the aforementioned second convex block is provided with a second stop surface; The stop spring arm includes a first spring arm and a second spring arm. The free end of the first spring arm contacts the first stop surface, and the free end of the second spring arm contacts the second stop surface.

As a further improved technical solution of the present invention, the insulating body is provided with a guide slope exposed in the installation space, and the bump is provided with an slope matching the guide slope.

As a further improved technical solution of the present invention, the insulating body is provided with a first groove and a second groove recessed from the butt surface; the metal shell is provided with a first groove bent from the first side wall portion. The holding tab and the second holding piece bent from the second side wall portion The aforementioned first holding protruding piece is held in the aforementioned first groove, and the aforementioned second holding protruding piece is held in the aforementioned second groove.

As a further improved technical solution of the present invention, the conductive terminal includes a sharp corner portion opposite to the butt portion, and the sharp corner portion is configured to pierce the cable to make contact with the cable.

As a further improved technical solution of the present invention, the aforementioned cable includes a grounding cable, the aforementioned metal shell includes a clip, and the aforementioned clip includes a first buckling part and a second buckling part, wherein the first buckling part and the aforementioned The second buckling parts are bent and buckled together to fix the cable, and the ground cable is in contact with the clip to achieve grounding.

As a further improved technical solution of the present invention, the insulating body includes a second surface opposite to the installation surface, and the cable installation groove penetrates the second surface.

The present invention also discloses an assembly method of the aforementioned modular connector. The aforementioned assembly method includes the following steps: S1, providing the aforementioned insulating body; S2, providing the aforementioned metal shell, and assembling and fixing the aforementioned metal shell to the aforementioned insulating body; S3, provide the aforementioned insulating block, and pass the aforementioned cable through the cable installation groove of the aforementioned insulating block to form the aforementioned cable module; S4, assemble the aforementioned insulating block of the aforementioned cable module in the aforementioned installation space; In the early stage of assembling the insulating block, the protrusions of the insulating block squeeze the stop elastic arm; when the insulating block is assembled in place, the stop elastic arm rebounds, causing the free end of the stop elastic arm to contact the protrusion. The blocks are in contact with each other to prevent the insulating block from exiting the installation space; S5, provide the conductive terminals, assemble the conductive terminals in the terminal receiving grooves; squeeze the conductive terminals to cause the conductive terminals to pierce the cables to connect with the wires. Electrical contact.

Compared with the prior art, the present invention prevents the insulating block from exiting the installation space and improves the reliability of the modular connector by arranging the stop elastic arm to abut the bump.

1: Insulating body

10:Installation space

100:Module connector

11: docking surface

110: Terminal storage slot

111: Fence Department

112: First groove

113: Second groove

12: First surface

121:Lock spring arm

13:First side wall

131: First positioning block

14:Second side wall

141: Second positioning block

15:Mounting surface

16: Second surface

17:Guide slope

2:Conductive terminal

20:Middle part

21: docking department

22: Sharp corner part

23: Notch

3: Cable module

31:Insulation block

311: Terminal mounting surface

3111:Slot

312: Cable installation surface

313: Cable installation slot

314: Bump

3141: first bump

3141a: First inclined surface

3141b: First stop surface

3142:Second bump

3142a: Second inclined surface

3142b: Second stop surface

315: Front end face

32:Cable

4: Metal shell

40: Stop spring arm

401:The first elastic arm

4011,4021: Free end

402:Second elastic arm

41:First wall

42: First side wall part

421:First gap

43: Second side wall part

431:Second gap

44:Second wall

45:Open your mouth

461: First retaining tab

462: Second retaining tab

47:Card holder

471:The first holding part

472:Second holding part

A1-A1: first direction

A2-A2: Second direction

B-B: line

G: Ground cable

S1, S2, S3, S4, S5: steps

FIG. 1 is a schematic three-dimensional view of the modular connector of the present invention in one embodiment, in which the cable is not shown.

Figure 2 is a schematic perspective view of Figure 1 from another angle.

FIG. 3 is a partially exploded perspective view of FIG. 1 .

Figure 4 is a partially exploded perspective view of Figure 3 from another angle.

FIG. 5 is a further three-dimensional exploded view after removing the metal shell in FIG. 3 .

Figure 6 is a partially exploded perspective view of Figure 5 from another angle.

Figure 7 is an exploded perspective view of the conductive terminals and the insulating block.

Figure 8 is a schematic cross-sectional view along line B-B in Figure 1.

Figure 9 is a schematic three-dimensional view of the cable in one embodiment of the present invention.

Exemplary embodiments of the present invention will be described in detail below with reference to the drawings. If there are multiple specific embodiments, features in these embodiments can be combined with each other provided there is no conflict. When the description refers to drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise stated. What is described in the following illustrative embodiments does not represent all embodiments consistent with the invention; rather, they are only consistent with some aspects of the invention described in the claimed scope of the invention. Examples of devices, products and/or methods.

The terminology used in the present invention is for the purpose of describing specific embodiments only and is not intended to limit the scope of the present invention. As used in the specification and claims of the invention, the singular forms "a", "the" or "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that words such as "first", "second" and similar words used in the description and patent application scope of the present invention do not indicate any order, quantity or importance, but are only used to distinguish the naming of features. . Likewise, "a" or "one" and similar words do not indicate a quantitative limit, but rather indicate the presence of at least one. Unless otherwise indicated, similar words such as "front", "back", "upper", "lower" appearing in the present invention are only for convenience of explanation and are not limited to a specific position or spatial orientation. "includes" or "Include" and other similar words are an open-ended expression, meaning that the elements appearing before "include" or "include" cover the elements appearing after "include" or "include" and their equivalents, which does not exclude Elements that appear before "includes" or "includes" may also contain other elements. If "plural" appears in the present invention, it means two or more than two.

Referring to FIGS. 1 to 9 , the present invention discloses a modular connector 100 , which includes an insulating body 1 , a plurality of conductive terminals 2 assembled in the insulating body 1 , and a cable module assembled in the insulating body 1 3 and a metal shell 4 installed on the aforementioned insulating body 1. In the illustrated embodiment of the present invention, the aforementioned module connector 100 is an RJ45 cable connector.

Please refer to FIG. 5 and FIG. 6 . In the illustrated embodiment of the present invention, the insulating body 1 includes a docking surface 11 (for example, an upper surface) and a first surface 12 (for example, a lower surface) opposite to the docking surface 11 . , the first side wall 13, the second side wall 14 opposite to the first side wall 13, the mounting surface 15 (for example, the rear surface), the second surface 16 (for example, the front surface) opposite to the aforementioned mounting surface 15, and penetrating the aforementioned mounting surface 15. The installation space 10 and a plurality of terminal receiving grooves 110 penetrating the aforementioned mating surface 11 are provided. Each terminal receiving groove 110 extends along the first direction A1-A1.

In the illustrated embodiment of the present invention, the insulative body 1 includes a plurality of fence portions 111 penetrating the mating surface 11 , and a terminal receiving groove 110 is formed between any two adjacent fence portions 111 . The terminal receiving groove 110 penetrates upwardly through the aforementioned mating surface 11 and forwardly through the aforementioned second surface 16 . In addition, the insulative body 1 further includes a first groove 112 and a second groove 113 recessed from the docking surface 11 , wherein the first groove 112 is close to the top of the first side wall 13 , and the second groove 113 Close to the top of the aforementioned second side wall 14 . In the first direction A1 - A1 , the first groove 112 and the second groove 113 are located approximately in the middle of the insulating body 1 so as not to excessively weaken the structural strength of the insulating body 1 .

As shown in FIGS. 6 and 8 , the insulative body 1 further includes a lock spring arm 121 integrally extending from the first surface 12 . The aforementioned locking elastic arm 121 is configured to lock with the notch of a mating connector (eg, an RJ45 socket connector).

As shown in FIGS. 5 and 6 , the first side wall 13 includes a first positioning block 131 located close to the second surface 16 and at a corner of the first side wall 13 .

Similarly, the second side wall 14 includes a second positioning block 141 located close to the second surface 16 and at a corner of the second side wall 14 .

As shown in FIG. 8 , the insulating body 1 also includes a guide slope 17 exposed in the installation space 10 . The guide slope 17 makes the installation space 10 have a trumpet shape with a larger opening toward the rear to facilitate the installation of the wires. Cable module 3. The guide slope 17 is used to guide the insertion of the cable module 3 .

As shown in FIG. 7 , the conductive terminals 2 are installed in the corresponding terminal receiving grooves 110 . Each conductive terminal 2 includes an intermediate portion 20 , a mating portion 21 extending upward from the intermediate portion 20 , and at least one sharp corner portion 22 extending downward from the intermediate portion 20 . The aforementioned butt portion 21 is exposed to the aforementioned butt surface 11 . The mating portion 21 is arranged to be in contact with the terminals of the mating connector. In the illustrated embodiment of the present invention, the mating portion 21 protrudes upward from the mating surface 11 to facilitate contact with the terminals of the mating connector. In the illustrated embodiment of the present invention, the width of the butt portion 21 along the first direction A1-A1 is greater than the width of the middle portion 20 along the first direction A1-A1, thereby increasing the width of the butt portion 21 as much as possible. , which is conducive to achieving docking reliability with the docking connector. In the illustrated embodiment of the present invention, there are two sharp corner portions 22 and they are spaced apart along the first direction A1-A1. The aforementioned conductive terminal 2 includes a notch 23 located between the two sharp corner portions 22 . The sharp corner portion 22 is configured to pierce the cable and come into contact with the cable. By providing two aforementioned sharp corner portions 22, it is helpful to improve the success rate of piercing the cable. Those skilled in the art can understand that the technical term "puncture" used in the present invention refers to puncturing the insulation of the cable, so that the sharp corner portion 22 can interfere with the conductive core of the cable. .

As shown in FIGS. 7 to 9 , the cable module 3 includes an insulating block 31 and a plurality of cables 32 installed on the insulating block 31 . The insulating block 31 is accommodated in the installation space 10 , and the cable 32 is in electrical contact with the conductive terminal 2 .

In the illustrated embodiment of the present invention, the insulating block 31 includes a terminal mounting surface 311, a cable mounting surface 312, and a plurality of slots 3111 upwardly penetrating the terminal mounting surface 311. The cable installation groove 313 and the protrusion 314 of the cable installation surface 312 are penetrated backward along the first direction A1-A1. The slits 3111 are aligned with the corresponding terminal receiving grooves 110 in the up and down direction and communicate with each other. The aforementioned cable installation groove 313 is connected with the corresponding aforementioned slot 3111. The cable installation groove 313 penetrates forward through the front end surface 315 of the insulating block 31 along the first direction A1-A1. In the illustrated embodiment of the present invention, the aforementioned cable installation grooves 313 are spaced and staggered along the second direction A2-A2. The aforementioned second direction A2-A2 is perpendicular to the aforementioned first direction A1-A1. In other words, the aforementioned cable installation grooves 313 are generally arranged in two rows up and down and are arranged in a staggered manner. With this arrangement, the insulating block 31 can be fully utilized to achieve the purpose of arranging more cables 32 .

In the illustrated embodiment of the present invention, the protrusion 314 includes a first protrusion 3141 and a second protrusion 3142. The first protrusion 3141 is provided with a first inclined surface 3141a and a first stop surface 3141b. In the illustrated embodiment of the present invention, the first stop surface 3141b is a vertical surface located at the rear end of the first protrusion 3141.

Similarly, the aforementioned second protrusion 3142 is provided with a second inclined surface 3142a and a second stopping surface 3142b. In the illustrated embodiment of the present invention, the second stop surface 3142b is a vertical surface located at the rear end of the second protrusion 3142.

The first inclined surface 3141a and the second inclined surface 3142a are configured to cooperate with the guide inclined surface 17.

As shown in FIG. 3 and FIG. 4 , the metal shell 4 is fixed on the insulating body 1 . The metal shell 4 includes a stop elastic arm 40 that protrudes obliquely into the installation space 10 . The stop elastic arm 40 is configured to abut the protrusion 314 to prevent the insulating block 31 from retreating backward from the installation space 10 along the first direction A1-A1.

Specifically, in the illustrated embodiment of the present invention, the metal shell 4 includes a first wall portion 41 (such as a bottom wall), a first side wall portion 42, and a second side wall portion 43 opposite to the first side wall portion 42. , and a second wall portion 44 (for example, a top wall) connecting the first side wall portion 42 and the second side wall portion 43 . In the illustrated embodiment of the present invention, the aforementioned metal shell 4 is formed by stamping, bending, and buckling a piece of metal. Dovetail grooves and dovetail protrusions for mutual fastening are located on the aforementioned second wall portion 44 . The top of the metal shell 4 is provided with an opening 45 in front of the second wall 44, and the butt portion 21 of the conductive terminal 2 is exposed to the opening. Within 45% of the mouth. After the metal shell 4 is assembled on the insulating body 1 , the first wall portion 41 abuts on the first surface 12 , the first side wall portion 42 abuts on the first side wall 13 , and the second wall portion 41 abuts on the first surface 12 . The side wall portion 43 abuts on the aforementioned second side wall 14 , and the aforementioned second wall portion 44 abuts on the aforementioned butt surface 11 .

The first side wall portion 42 is provided with a first notch 421 at its front end, and the first notch 421 cooperates with the first positioning block 131 . The second side wall portion 43 is provided with a second notch 431 at its front end, and the second notch 431 cooperates with the second positioning block 141 .

The metal shell 4 is provided with a first holding tab 461 bent from the first side wall 42 and a second holding tab 462 bent from the second side wall 43. The first holding tab 461 is bent from the second side wall 43. The clamping protrusion 461 is clamped in the first groove 112 , and the second clamping protrusion 462 is clamped in the second groove 113 . With this arrangement, the metal shell 4 can be prevented from being separated from the insulating body 1 along the first direction A1-A1. By arranging the first groove 112 and the second groove 113 in the middle of the insulating body 1 , it is beneficial to make full use of the higher structural strength parts of the insulating body 1 and further improve the insulation between the metal shell 4 and the insulation body 1 . Fixation between bodies 1.

In the illustrated embodiment of the present invention, the stop elastic arm 40 integrally extends from the second wall portion 44 , that is, the stop elastic arm 40 extends from the rear end edge of the second wall portion 44 It extends downward and forward in one piece. The stop elastic arm 40 includes a first elastic arm 401 and a second elastic arm 402. The free end 4011 of the first elastic arm 401 abuts the first stop surface 3141b, and the free end 4021 of the second elastic arm 402 abuts against the first stop surface 3141b. Connected to the aforementioned second stop surface 3142b.

In addition, the aforementioned metal housing 4 includes a clip 47 . In the illustrated embodiment of the present invention, the clamp 47 extends integrally with the first wall portion 41 . The clip 47 includes a first buckling part 471 and a second buckling part 472 , wherein the first buckling part 471 and the second buckling part 472 are bent and buckled together to fix the cable 32 . In the illustrated embodiment of the present invention, the aforementioned cable 32 includes a ground cable G, and the aforementioned ground cable G is in contact with the aforementioned clamp 47 to achieve grounding. Preferably, the aforementioned clip 47 fixes the aforementioned ground cable G inside the clip 47 . The part of the ground cable G fixed to the clamp 47 can be along the first direction. A1-A1 extends, or extends along the aforementioned second direction A2-A2, or extends at any angle, which is not limited by the present invention.

The present invention also discloses an assembly method of the aforementioned modular connector 100. The aforementioned assembly method includes the following steps: S1, providing the aforementioned insulating body 1; S2, providing the aforementioned metal shell 4, and assembling and fixing the aforementioned metal shell 4 on the aforementioned The insulating body 1; S3, provide the aforementioned insulating block 31, and insert the aforementioned cable 32 into the cable installation slot 313 of the aforementioned insulating block 31 to form the aforementioned cable module 3; S4, insert the aforementioned cable module 3 The insulating block 31 is assembled in the installation space 10; in the early stage of assembling the insulating block 31, the bump 314 of the insulating block 31 presses the stop spring arm 40; when the insulating block 31 is assembled in place, the stop The elastic arm 40 rebounds, causing the free end of the stop elastic arm 40 to contact the bump 314 to prevent the insulating block 31 from retreating backward from the installation space 10 along the first direction A1-A1; and S5, providing the aforementioned conductive Terminal 2: Assemble the conductive terminal 2 into the terminal receiving groove 110; squeeze the conductive terminal 2 so that the conductive terminal 2 pierces the cable 32 to make electrical contact with the cable 32.

In step S2, the first holding tab 461 is held in the first groove 112, and the second holding tab 462 is held in the second groove 113 to realize the metal shell. 4 is assembled and fixed with the aforementioned insulating body 1.

In step S3, the portion of the cable 32 that protrudes from the front end surface 315 of the insulating block 31 is cut off.

Those skilled in the art can understand that in the assembly method of the modular connector 100 of the present invention, the order of the relevant steps can be adjusted as needed.

Compared with the prior art, the present invention prevents the insulating block 31 from exiting the installation space 10 by arranging the stop elastic arm 40 to abut the bump 314, thereby improving the reliability of the module connector 100. .

The above embodiments are only used to illustrate the present invention and are not intended to limit the description of the present invention. Technical solutions, the understanding of the present invention should be based on those skilled in the technical field. Although the present invention has been described in detail with reference to the foregoing embodiments in this specification, those of ordinary skill in the art should understand that the technical solution Skilled personnel can still make modifications or equivalent substitutions to the present invention, and all technical solutions and improvements that do not deviate from the spirit and scope of the present invention should be covered by the patent application scope of the present invention.

1: Insulating body

10:Installation space

121:Lock elastic arm

17:Guide slope

3: Cable module

313: Cable installation slot

3141: first bump

3141a: First inclined surface

3141b: First stop surface

401:The first elastic arm

4011: Free end

47:Card holder

Claims (10)

A modular connector, characterized in that it includes: an insulating body, the insulating body including a butt surface, a mounting surface, a plurality of terminal receiving slots penetrating the butt surface, and an installation space penetrating the mounting surface; a plurality of conductive terminals, the conductive terminals The terminals are installed in the corresponding terminal receiving slots, the conductive terminals include a butt portion exposed to the butt surface, the butt portion is configured to contact the terminal of the butt connector; a cable module, the cable module includes an insulation block and a plurality of cables installed on the insulating block, the insulating block is accommodated in the installation space, the cables are in electrical contact with the conductive terminals; and a metal shell, the metal shell is fixed on the insulating body, The aforementioned metal shell includes a stop elastic arm protruding into the aforementioned installation space; wherein, the aforementioned insulating block includes a terminal mounting surface, a cable mounting surface, a plurality of slots penetrating the terminal mounting surface, and a plurality of slots penetrating the cable mounting surface. Cable installation grooves and bumps, the aforementioned slots are aligned with and connected to the corresponding terminal receiving grooves, the aforementioned cable installation grooves are connected to the corresponding aforementioned slots; the aforementioned stop spring arm is configured to be connected to the aforementioned bumps abutting to prevent the insulating block from exiting the installation space; the metal shell includes a second wall that at least partially covers the docking surface; the stop elastic arm extends from the rear end edge of the second wall Extending downward and forward; the stop elastic arm bypasses the insulating body and abuts against the insulating block. The modular connector according to claim 1, wherein: the insulating body includes a first side wall, a second side wall opposite to the first side wall, and a first surface opposite to the mating surface; and the metal shell includes a third side wall. A wall portion, a first side wall portion, a second side wall portion opposite to the aforementioned first side wall portion, and a second wall portion connecting the aforementioned first side wall portion and the aforementioned second side wall portion; Wherein, the first wall portion abuts on the first surface, the first side wall portion abuts on the first side wall, the second side wall portion abuts on the second side wall, and the second wall portion abuts on the first side wall. Leaning on the aforementioned docking surface. The modular connector according to claim 2, wherein the stop elastic arm extends integrally from the second wall. The modular connector according to claim 3, wherein: the aforementioned bump includes a first bump and a second bump, the first bump is provided with a first stop surface, and the aforementioned second bump is provided with a second Stop surface; the stop elastic arm includes a first elastic arm and a second elastic arm. The free end of the first elastic arm abuts the first stop surface, and the free end of the second elastic arm abuts the second elastic arm. Stop surface. The modular connector according to claim 1, wherein the insulative body is provided with a guide slope exposed in the installation space, and the protrusion is provided with a slope matching the guide slope. The modular connector according to claim 2, wherein: the insulative body is provided with a first groove and a second groove recessed from the mating surface; and the metal shell is provided with a groove bent from the first side wall. The first holding tab is formed and the second holding tab is bent from the second side wall. The first holding tab is held in the first groove, and the second holding tab is held in the first groove. The protruding piece is held in the aforementioned second groove. The module connector according to claim 1, wherein the conductive terminal includes a sharp corner portion opposite to the mating portion, and the sharp corner portion is configured to pierce the cable to make contact with the cable. The modular connector according to claim 1, wherein: the cable includes a grounding cable, the metal shell includes a clip, the clip includes a first latching part and a second latching part, wherein the first The buckling part and the second buckling part are bent and buckled together to fix the cable, and the ground cable is in contact with the clip to achieve grounding. The modular connector according to claim 1, wherein the insulative body includes a second surface opposite to the mounting surface, and the cable mounting groove penetrates the second surface. An assembly method of a modular connector. The aforementioned modular connector is a modular connector as described in any one of claims 1 to 9. The aforementioned assembly method includes the following steps: S1, provide the aforementioned insulating body; S2, provide The aforementioned metal shell, and the aforementioned metal shell is assembled and fixed on the aforementioned insulating body; S3, the aforementioned insulating block is provided, and the aforementioned cable is passed through the cable installation groove of the aforementioned insulating block to form the aforementioned cable module; S4, assemble the insulating block of the cable module in the installation space; in the early stage of assembling the insulating block, the bump of the insulating block squeezes the stop spring arm; when the insulating block is assembled in place, the stop The elastic arm rebounds, causing the free end of the elastic arm to contact the bump to prevent the insulating block from exiting the installation space; and S5, providing the conductive terminal, and assembling the conductive terminal in the terminal receiving groove. ; Squeeze the conductive terminal so that the conductive terminal pierces the cable to make electrical contact with the cable.