CN107611748A - The moulding process of USB TYPE C Male head connectors - Google Patents

Abstract

The invention discloses a molding process of a USB TYPE-C male connector, which includes the following steps: 1: Put the first terminal group and the hook piece into the first mold for the first injection molding, so as to form the first injection molding part, the first terminal group, the hook part and the first injection molded part are embedded and fixed together to form the first module; two: the welding end of the second terminal group and the welding end of the first terminal group are respectively welded to the PCB board On both sides of the front and back, the second module group is composed of the second terminal group, the PCB board and the first module group; three: put the second module group into the second injection mold for the second injection molding to form a The second injection molded part, the second module is embedded and fixed with the second injection molded part to form the third module; four: assemble and fix the insulating body on the front end of the third mold to form a semi-finished product; five: wrap the shielding shell Form finished products out of semi-finished products. The product assembled by the invention has stable performance, simplifies the manufacturing process, improves the assembly efficiency, and reduces the defective rate.

Description

Forming process of USB TYPE-C male connector

technical field

The invention relates to the technology in the field of connectors, in particular to a molding process of a USB TYPE-C male connector.

Background technique

The highlights of USB Type C connector products are slimmer design, faster transmission speed and more powerful power transmission; Type-C supports double-sided insertion of USB interface, which formally solves the worldwide problem of "USB can never be plugged in correctly". Difficult problems, just plug in the front and back. At present, USB Type C connector products have been widely supported, and many manufacturers have launched USB Type C connector products.

The existing USB Type-C plug connector includes an insulating body, upper and lower terminal sets, hooks, shielding shells, and circuit boards; the molding of the existing USB Type-C plug connector includes the following steps:

(1) Injection molding of the upper row of terminals;

(2) Injection molding of the lower row of terminals;

(3) The formed upper row of terminals and lower row of terminals are combined with hooks;

(4) The product in step 3 and the body are assembled together to form a semi-finished product

(5) Step 4 The product and the shell are assembled together to form a finished product

(6) In step five, the product and the PCB board are welded together.

From the above steps, it can be seen that the molding process of the existing USB Type-C plug connector is complicated, the assembly efficiency is low and the product defect rate is high.

Contents of the invention

In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a molding process for a USB TYPE-C male connector, which effectively solves the problem of complex processing procedures, low assembly efficiency and high defective rate. The problem.

To achieve the above object, the present invention adopts the following technical solutions:

A molding process for a USB TYPE-C male connector, comprising the following steps:

Step 1: Put the first terminal group and the hook part into the first injection mold for the first injection molding to form the first injection molded part, the first terminal group, the hook part and the first injection molded part are embedded and fixed together form a first module;

Step 2: Solder the welding end of the second terminal group and the welding end of the first terminal group on the front and back sides of the PCB board respectively, and the second module group is composed of the second terminal group, the PCB board and the aforementioned first module group ;

Step 3: Put the second module into the second injection mold for the second injection molding to form the second injection molded part, the second mold group and the second injection molded part are fixed together by insert molding to form the third module, The rear end of the PCB board protrudes backward from the second injection molded part, and the front end of the second module extends forward from the second injection molded part;

Step 4: Assembling and fixing the insulating body on the front end of the third module to form a semi-finished product;

Step 5: Wrap the shielding shell on the semi-finished product to form a finished product.

As a preferred solution, the hook part has an integrated structure, and the hook part is provided with a fixing through groove, and the fixing through groove is embedded in the first injection molded part.

As a preferred solution, a plurality of fixing grooves are recessed on the outer surface of the first injection molded part, and the plurality of fixing grooves are embedded in the second injection molded part.

As a preferred solution, both sides of the second injection molded part are provided with through grooves, and both sides of the hook part protrude outward through the corresponding through grooves.

As a preferred solution, the insulating body is an integrated structure, the front end of the third module is inserted through the rear opening of the insulating body, and the insulating body and the second injection molded part are snapped together through the button hole and the button part. fixed.

As a preferred solution, both sides of the upper and lower surfaces of the rear end of the insulating body are provided with the aforementioned buttonholes, and the upper and lower surfaces of the front end of the second injection molded part are protrudingly provided with the aforementioned button parts, and the plurality of button parts are respectively connected to the corresponding button holes. The hole is fixed with a buckle connection.

As a preferred solution, the inner wall of the rear end of the shielding shell is convexly provided with a buckle, and the second injection molded part is concavely provided with a buckle groove, and the buckle and the buckle groove are snapped and fixed.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

Firstly, the first injection molded part is formed by putting the first terminal group and the hook part into the first injection mold for the first injection molding, and the first terminal group, the hook part and the first injection part are embedded and fixed Form the first module together, and then solder the welding ends of the first terminal group and the second terminal group to the front and back sides of the PCB to form the second module, and then the second module and the second injection molded part Inlaid molding is fixed together to form the third module, and finally the insulating body and the shielding shell are assembled. Compared with the traditional process, this process is to weld the PCB board first and then assemble it by injection molding; the assembled product of the present invention is simple It is beautiful and stable in performance, and the structure is optimized, the manufacturing process is simplified, the assembly efficiency is improved, and the defective rate is reduced.

In order to more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic perspective view of assembly of Step 1 of a preferred embodiment of the present invention;

Fig. 2 is a schematic perspective view of assembly step 2 of a preferred embodiment of the present invention;

Fig. 3 is a three-dimensional schematic diagram of assembly of Step 3 of a preferred embodiment of the present invention;

Fig. 4 is a schematic perspective view of assembly step 4 of a preferred embodiment of the present invention;

Fig. 5 is a schematic perspective view of assembly step five of a preferred embodiment of the present invention;

Figure 6 is an exploded view of a preferred embodiment of the present invention;

Fig. 7 is a cross-sectional view of a preferred embodiment of the present invention.

Explanation of the accompanying drawings:

10. The first module 11. The first terminal group

12. Hook piece 121. Fixed slot

13. First injection molded part 131. Fixing groove

20. The second module 21. The second terminal group

22. PCB board 30. The third module

31. Second injection molded part 311. Through groove

312, buckle 313, buckle groove

40. Semi-finished products 41. Insulation body

411. Buttonhole 50. Finished product

51. Shielding shell 511. Buckle.

detailed description

Please refer to Fig. 1 to Fig. 7, which shows the molding process of a preferred embodiment of the present invention, including the following steps:

Step 1: Put the first terminal group 11 and the hook member 12 into the first injection mold for the first injection molding to form the first injection molded part 13, the first terminal group 11, the hook member 12 and the first The injection molded parts 13 are insert-molded and fixed together to form the first mold set 10 .

Step 2: Solder the welding end of the second terminal group 21 and the welding end of the first terminal group 11 on the front and back sides of the PCB board 22 respectively, and the second terminal group 21, the PCB board 22 and the first module 10 constitute the second module 20;

Step 3: Put the second module 20 into the second injection mold for the second injection molding to form the second injection molded part 31. The second mold group 20 and the second injection molded part 31 are embedded and fixed together to form the second injection molded part 31. Three modules 30, the rear end of the PCB board 22 protrudes backward from the second injection molded part 31, and the front end of the second module 20 protrudes forward from the second injection molded part 31;

Step 4: Assembling and fixing the insulating body 41 on the front end of the third module 30 to form a semi-finished product 40;

Step 5: Wrap the shielding shell 51 on the semi-finished product 40 to form the finished product 50 .

The existing USB TYPE-C male connector molding process is to assemble the various components first, and then weld the PCB board, and this product is to weld the PCB board first, and then assemble it by injection molding. The assembled product is simple and beautiful with stable performance. Moreover, the structure is optimized, the manufacturing process is simplified, the assembly efficiency is improved, and the defect rate is reduced.

The above-mentioned hook piece 12 has an integrated structure, and the hook piece 12 is provided with a fixed through groove 121, which is buried in the first injection molded part 13, and the first injection molded part 13 is exposed outside the fixed through groove 121, thereby easily Fix the hook part 12 and the first injection molded part 13 together; the outer surface of the first injection molded part 13 is recessed with a plurality of fixing grooves 131, and the plurality of fixing grooves 131 are embedded in the second injection molded part 31, so that the first injection molded part 13 and the second injection molded part 31 are well combined and fixed together.

Both sides of the above-mentioned second injection molded part 31 are provided with through grooves 311, and both sides of the hook part 12 protrude outward through the corresponding through grooves 311, so that the second injection molded part 31 and the hook part are well connected. 12 are combined and fixed together, and the structure is more stable; the above-mentioned insulating body 41 has an integral structure, the front end of the third module 30 is inserted through the rear end opening of the insulating body 41, and the insulating body 41 and the second injection molded part 31 pass through The buckle hole 411 and the buckle part 312 are connected and fixed by buckle. Specifically, the above-mentioned button hole 411 is provided on both sides of the upper and lower surfaces of the rear end of the insulating body 41, and the above-mentioned button hole 411 is provided on the upper and lower surfaces of the front end of the second injection molded part 31. The buckle part 312 , and a plurality of buckle parts 312 are snap-connected and fixed with the corresponding buckle holes 411 respectively, so as to combine and fix the insulating body 41 and the second injection molded part 31 together.

The inner wall of the rear end of the above-mentioned shielding shell 51 is convexly provided with a buckle 511, and the second injection molded part 31 is concavely provided with a buckle groove 313. The injection molding parts 31 are well combined and fixed together.

The design focus of the present invention is:

Firstly, the first injection molded part is formed by putting the first terminal group and the hook part into the first injection mold for the first injection molding, and the first terminal group, the hook part and the first injection part are embedded and fixed Form the first module together, and then solder the welding ends of the first terminal group and the second terminal group to the front and back sides of the PCB to form the second module, and then the second module and the second injection molded part Inlaid molding is fixed together to form the third module, and finally the insulating body and the shielding shell are assembled. Compared with the traditional process, this process is to weld the PCB board first and then assemble it by injection molding; the assembled product of the present invention is simple It is beautiful and stable in performance, and the structure is optimized, the manufacturing process is simplified, the assembly efficiency is improved, and the defective rate is reduced.

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still valid. It belongs to the scope of the technical solutions of the present invention.

Claims (7)

1. A molding process of a USB TYPE-C male connector, characterized in that: comprising the following steps: Step 1: Put the first terminal group and the hook part into the first injection mold for the first injection molding to form the first injection molded part, the first terminal group, the hook part and the first injection molded part are embedded and fixed together form a first module; Step 2: Solder the welding end of the second terminal group and the welding end of the first terminal group on the front and back sides of the PCB board respectively, and the second module group is composed of the second terminal group, the PCB board and the aforementioned first module group ; Step 3: Put the second module into the second injection mold for the second injection molding to form the second injection molded part, the second mold group and the second injection molded part are fixed together by insert molding to form the third module, The rear end of the PCB board protrudes backward from the second injection molded part, and the front end of the second module extends forward from the second injection molded part; Step 4: Assembling and fixing the insulating body on the front end of the third module to form a semi-finished product; Step 5: Wrap the shielding shell on the semi-finished product to form a finished product. 2. The molding process of USB TYPE-C male connector according to claim 1, characterized in that: the hook part has an integrated structure, and the hook part is provided with a fixed through groove, which is embedded in the fixed through groove. in the first injection molded part. 3. The molding process of the USB TYPE-C male connector according to claim 1, characterized in that: the outer surface of the first injection molded part is concavely provided with a plurality of fixing grooves, and the plurality of fixing grooves Buried in the second injection molded part. 4. The molding process of the USB TYPE-C male connector according to claim 1, characterized in that: both sides of the second injection molded part are provided with through grooves, and the two sides of the hook part pass through the corresponding The slots protrude outwards. 5. The molding process of the USB TYPE-C male connector according to claim 1, characterized in that: the insulating body is an integrated structure, the front end of the third module is inserted from the rear opening of the insulating body, The insulating body and the second injection molded part are connected and fixed through the buckle hole and the buckle part. 6. The molding process of USB TYPE-C male connector according to claim 5, characterized in that: both sides of the upper and lower surfaces of the rear end of the insulating body are provided with the aforementioned buttonholes, and the front end of the second injection molded part Both the upper and lower surfaces are protrudingly provided with the above-mentioned buckle parts, and the plurality of buckle parts are respectively connected and fixed with the corresponding buckle holes through snap fit. 7. The molding process of the USB TYPE-C male connector according to claim 1, characterized in that: the inner wall of the rear end of the shielding shell is convexly provided with a buckle, and the second injection molded part is concavely provided with a buckle groove , the buckle and the buckle groove are buckled and fixed.