Simplified implementation method of TYPE-C female joint for transmitting analog audio signals

Abstract

The invention discloses a simplified implementation method of a TYPE-C female joint for transmitting analog audio signals. The simplified implementation method comprises the following steps: step 1, preparing an integrated TYPE-C female joint terminal material strip and a metal middle spacer material strip; 2, the metal middle spacer material belt and the integrated TYPE-C female head terminal material belt are arranged on the front side and the rear side to be fed into an injection mold together, two metal middle spacers are in one set and located on the left side and the right side of a double-row terminal composed of the first terminal set and the second terminal set respectively, and an inlay injection molding technology is adopted to form the integrated TYPE-C female head terminal material belt. Forming an insulating body on the two metal middle spacers and the double-row terminals; step 3, removing the material belt; and step 4, loading the product obtained in the step 3 into a shell. Therefore, the two terminal groups are arranged on the same main material belt side by side and are divided into the upper row of terminals and the lower row of terminals in a folding manner, and the upper row of terminals and the lower row of terminals are skillfully combined and arranged on the same continuous material belt, so that the number of parts is reduced, injection molding is easy, the production difficulty of products is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of TYPE-C female connector technology, and in particular to a simplified implementation method of a TYPE-C female connector for transmitting analog audio signals. The TYPE-C female connector is mainly used for transmitting analog audio signals on headphones. Background Art

[0002] The Type-C connector is a versatile connection interface that can be used for data transmission, power supply, and audio / video (A / V) applications. Due to its slim shape and durability, the Type-C connector is very suitable for mobile devices and has been widely used in a variety of electronic devices such as smartphones, tablets, laptops, monitors, etc.

[0003] At present, Type-C connectors are also used in small electronic products such as headphones. In fact, when applying TYPE-C connectors to the field of headphones, it is not necessary to use all the functions of TYPE-C connectors. Moreover, if the standard USB2.0 TYPE-C 16 PIN female connector or USB TYPE-C 24 PIN female connector is directly applied to headphones, it will be difficult to promote due to the high cost. Therefore, some TYPE-C female connectors for small electronic products such as headphones have appeared in the industry, such as a TYPE-C dustproof connector female connector disclosed in CN 214589415U, which includes a shell and a back cover, a contact portion is provided inside the shell, and a transmission conductor group is welded at the upper and lower ends of the contact portion. The number of terminals is reduced, and pins that are not required for the headphone function are omitted. In comparison, the structure is simplified, raw materials are saved, and the manufacturing cost is reduced.

[0004] However, because there are two rows of terminal contacts, although the total number of terminals has been reduced, the industry still generally uses two rows of terminals to make a simplified version of the TYPE-C female socket for headphones, which requires two terminal strips, and the strips generate a lot of waste. In addition, during production, the two terminal strips still need to be stamped and bent separately, and when the two terminal strips are sent to the injection mold for injection molding, the two terminal strips still need to be positioned. Compared with the standard USB2.0 TYPE-C 16PIN female head or USB TYPE-C 24 PIN female head, it only has a reduced number of terminals, the production process is basically the same, and the production difficulty is basically the same, which makes it difficult to further reduce the production cost, which is not conducive to the promotion and popularization of the TYPE-C female socket in small electronic products such as headphones.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the invention

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a simplified implementation method of a TYPE-C female connector for transmitting analog audio signals, which arranges two terminal groups side by side on the same main material strip, and folds them to form upper and lower rows of terminals, cleverly combining the upper and lower rows of terminals into one on the same continuous material strip, reducing the number of parts, facilitating injection molding, reducing the difficulty of product production, and reducing production costs.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: A simplified implementation method of a TYPE-C female connector for transmitting analog audio signals comprises the following steps: Step 1, prepare an integrated TYPE-C female terminal strip and a metal spacer strip; When making an integrated TYPE-C female terminal strip, firstly, a first terminal group and a second terminal group arranged side by side are integrally arranged on the front side of the main strip, wherein the first terminal group includes B6 terminals, B7 terminals and B8 terminals arranged from right to left, and the second terminal group includes A6 terminals, A7 terminals and A8 terminals arranged from right to left, and then the second terminal group is bent upward by 180±5 degrees and then stacked on top of the first terminal group in a spaced manner; When manufacturing the metal middle spacer strip, two sub-strips with left and right spacing are integrally arranged on the rear side of the spacer strip, and each of the two sub-strips is integrally connected with a metal middle spacer; Step 2, the metal spacer strip and the front and rear sides of the integrated TYPE-C female terminal strip are sent into the injection mold together, two metal spacers form a group and are respectively located on the left and right sides of the double-row terminals composed of the first terminal group and the second terminal group, and an inlay injection molding process is used to form an insulating body on the two metal spacers and the double-row terminals; Step 3, remove the metal spacer strip and the integrated TYPE-C female terminal strip that are exposed outside the insulation body, and the rear end of the double-row terminal determines the position of the cutting line according to the length of the welding foot to retain the corresponding length of the welding foot; Step 4: Put the product obtained in step 3 into the shell.

[0008] As a preferred solution, in step 1, an extension material strip is integrally connected to the right side of the rear end of the B6 terminal, and the A6 terminal, A7 terminal and A8 terminal are arranged side by side from right to left on the front side of the extension material strip. A foldable area is formed on the extension material strip corresponding to the B6 terminal and the A6 terminal. The extension material strip is bent 180±5 degrees to the left and upward in the foldable area, so that the second terminal group and the first terminal group are stacked up and down and a gap is maintained.

[0009] As a preferred solution, a stacking positioning portion is integrally extended between the rear end of the B6 terminal and the main material strip, and the bending process of the extended material strip is divided into two steps: first, the extended material strip is bent 90±5 degrees to the left and upward, and then bent to the left and downward until it is stacked on the stacking positioning portion.

[0010] As a preferred solution, in step 1, a first sub-material strip is connected to the front end of the first terminal group, and a second sub-material strip is connected to the front end of the second terminal group. When the extended material strip is bent leftward and upward to a stacked shape, the second sub-material strip is attached to the top surface of the first sub-material strip.

[0011] As a preferred solution, in step 1, the fixing parts of the B6 terminal, the B7 terminal, the B8 terminal, the A6 terminal, the A7 terminal and the A8 terminal are staggered in the horizontal direction.

[0012] As a preferred solution, in step 1, the front end of each contact portion of the B6 terminal, the B7 terminal, the B8 terminal, the A6 terminal, the A7 terminal and the A8 terminal is extended with a front end extension portion, and each front end extension portion is staggered in the horizontal direction; In step 2, each front extension portion is sunk into the tongue piece of the insulating body.

[0013] As a preferred solution, in step 2, supporting parts are provided for each front end extension in the injection mold to position the top surfaces of each front end extension of the B6 terminal, B7 terminal and B8 terminal, and to position the bottom surfaces of each front end extension of the A6 terminal, A7 terminal and A8 terminal during injection molding; after injection molding, supporting positioning holes corresponding to each front end extension are formed on the tongue of the insulating body.

[0014] As a preferred scheme, in step 1, the rear end of the front end extension portion of each terminal is connected to the front end of the corresponding contact portion through a bending portion, so that the front end extension portions of the upper and lower rows are close to each other in the up and down directions, and the distance between the rear sections of the front end extension portions of the upper and lower rows is increased by thinning the bottom surface of the front end extension portions of the upper row and thinning the top surface of the front end extension portions of the lower row.

[0015] As a preferred solution, in step 1, a bending portion is designed at the front end of the contact portion of each terminal so that: the front end extension portions of the upper and lower rows are close to each other in the up and down directions and maintain an up and down spacing; a bending portion is designed at the front end of each front end extension portion so that: the second sub-material strip and the first sub-material strip fit each other with zero gap.

[0016] As a preferred solution, in step 1, positioning holes are provided on the first auxiliary material belt and the first auxiliary material belt. When the extended material belt is bent leftward and upward to a stacked state, the positioning holes of the second auxiliary material belt and the first auxiliary material belt are vertically opposite and connected.

[0017] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the two terminal groups are mainly arranged side by side on the same main material strip, and are folded to form upper and lower rows of terminals, and the upper and lower rows of terminals are cleverly combined into one and arranged on the same continuous material strip, thereby reducing the number of parts, facilitating injection molding, reducing the difficulty of product production, and reducing production costs, which is conducive to the promotion and popularization of TYPE-C female connectors in small electronic products such as headphones.

[0018] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a flowchart of a simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention; Figure 2 It is a three-dimensional diagram of an integrated TYPE-C female terminal strip according to an embodiment of the present invention (before bending 1); Figure 3 It is a top view of an integrated TYPE-C female terminal strip according to an embodiment of the present invention (before bending); Figure 4 It is a side view of an integrated TYPE-C female terminal strip according to an embodiment of the present invention (before bending); Figure 5 It is a diagram showing the bending process of an integrated TYPE-C female terminal strip according to an embodiment of the present invention (the angle changes from 0-90-180±5 degrees); Figure 6 It is a top view of an integrated TYPE-C female terminal strip according to an embodiment of the present invention (after being bent 180±5 degrees); Figure 7 It is a side view of an integrated TYPE-C female terminal strip according to an embodiment of the present invention (after being bent 180±5 degrees); Figure 8 This is a front view of an integrated TYPE-C female terminal strip according to an embodiment of the present invention (after being bent 180±5 degrees); Fig. 9 yes Figure 6 A partial enlarged diagram of Fig.10 yes Figure 7 A partial enlarged diagram of Fig.11 It is a three-dimensional diagram of another integrated TYPE-C female terminal strip according to an embodiment of the present invention (after being bent 180±5 degrees); Fig.12 It is a side view of another integrated TYPE-C female terminal strip according to an embodiment of the present invention (after being bent 180 degrees); Fig.13 yes Fig.11 A partial enlarged diagram of Fig.14 yes Fig.12 A partial enlarged diagram of Fig.15 It is a stereoscopic diagram of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention; Fig.16 is another stereoscopic diagram of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention; Fig.17 is an exploded view of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention; Fig.18 is another exploded view of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention; Fig.19 It is a top view of an integrated TYPE-C female connector terminal set and a metal middle spacer of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention; Fig. 20 is a cross-sectional view of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention; Fig.21 It is another cross-sectional view of a TYPE-C female connector for transmitting analog audio signals according to an embodiment of the present invention.

[0020] Description of the accompanying drawings: TYPE-C female terminal group 100, insulating body 200, shell 300, tongue 21, metal middle spacer 400, main material strip 1, first terminal group 2, extended material strip 3, second terminal group 4, first auxiliary material strip 5, second auxiliary material strip 6, B6 terminal 201, B7 terminal 202, B8 terminal 203, foldable area 301, A6 terminal 401, A7 terminal 402, A8 terminal 403, first connection end J1 of the extended material strip, second connection end J2 of the extended material strip, first auxiliary material strip connection end J3, second auxiliary material strip connection end J4, connection end J5 of the main material strip, connection end J6 of the spacer material strip, spacer material strip 7, split material strip 71 ', the first welding leg F1, the first fixed part F2, the first contact part F3, the first front end extension part F4, the second welding leg G1, the second fixed part G2, the second contact part G3, the second front end extension part G4, the first horizontal extension body F41, the first bending part F42, the second horizontal extension body G41, the second bending part G42, the upper and lower gaps D1, the thinned part F401, the thinned part G401, the sealing surface C1, the positioning hole E, the positioning edge 51, the dividing tape 101, the dividing tape 101', the left widened part 102', the third bending part F43, the fourth bending part G43, the support positioning hole K1, the first terminal positioning hole K2, and the second terminal positioning hole K3. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] like Figures 1 to 21 As shown, a simplified implementation method of a TYPE-C female connector for transmitting analog audio signals and a structure of a TYPE-C female connector made using the method; a simplified implementation method of a TYPE-C female connector for transmitting analog audio signals, comprising the following steps: Step 1, prepare an integrated TYPE-C female terminal strip and a metal spacer strip; When making an integrated TYPE-C female terminal strip, firstly, a first terminal group and a second terminal group arranged side by side on the front side of the main strip extending continuously from left to right are integrally arranged, wherein the first terminal group includes B6 terminals, B7 terminals and B8 terminals arranged from right to left, and the second terminal group includes A6 terminals, A7 terminals and A8 terminals arranged from right to left, and then the second terminal group is bent upward by 180±5 degrees and then stacked on top of the first terminal group in a spaced manner; When manufacturing the metal spacer strip, two strips with left and right spacing are integrally provided on the rear side of the spacer strip extending continuously to the left and right, and the two strips are respectively connected with a metal spacer, and the two metal spacers are arranged at left and right spacings, and the spacing is slightly larger than the left and right widths of the contact parts of the two groups of terminals of the integrated TYPE-C female terminal strip, and the spacing is smaller than the left and right widths of the fixing parts and welding feet of the two groups of terminals of the integrated TYPE-C female terminal strip, taking into account the position arrangement of the terminal contact parts, the design of the metal spacer, and the design of the enlarged spacing of the welding feet. The two strips are connected to the outside of the metal spacer; further, an extended strip is integrally connected to the right side of the rear end of the B6 terminal, and the A6 terminal, A7 terminal and A8 terminal are arranged side by side from right to left on the front edge of the extended strip, and a foldable area is formed on the extended strip corresponding to the B6 terminal and the A6 terminal, and the extended strip is bent 180±5 degrees to the left and upward in the foldable area, so that the second terminal group and the first terminal group are stacked up and down and a gap is maintained. A stacking positioning portion is integrally extended between the rear end of the B6 terminal and the main material strip. The bending process of the extended material strip is divided into two steps: first, bend the extended material strip 90±5 degrees to the left and upward, and then bend it to the left and downward to be stacked on the stacking positioning portion, usually parallel to each other. The front ends of each terminal of the first terminal group are connected together with the first auxiliary material strip, and the front ends of each terminal of the second terminal group are connected together with the second auxiliary material strip. When the extended material strip is bent to the left and upward to a stacked state, the second auxiliary material strip is attached to the top surface of the first auxiliary material strip. Positioning holes (also referred to as auxiliary material strip positioning holes) are provided on both the first auxiliary material strip and the first auxiliary material strip. When the extended material strip is bent to the left and upward to a stacked state, the positioning holes of the second auxiliary material strip and the first auxiliary material strip are directly connected up and down, and a positioning hole (also referred to as the main material strip positioning hole) is provided on the left and right sides of the double-row terminals composed of the first terminal group and the second terminal group on the main material strip. The two main material strip positioning holes and one auxiliary material strip positioning hole form a triangle. The fixing parts and welding legs of the B6 terminal, B7 terminal, B8 terminal, A6 terminal, A7 terminal and A8 terminal are staggered in the horizontal direction. The front end of each contact part of the B6 terminal, B7 terminal, B8 terminal, A6 terminal, A7 terminal and A8 terminal is extended with a front end extension part, and each front end extension part is staggered in the horizontal direction; Furthermore, in order to reduce the short circuit of the upper and lower rows of terminals, the rear end of the front end extension of each terminal is connected to the front end of the corresponding contact portion through a bending portion, so that the front end extensions of the upper and lower rows are close to each other in the up and down directions, and the spacing between the rear sections of the front end extensions of the upper and lower rows is increased by thinning the bottom surface of the front end extension of the upper row and the top surface of the front end extension of the lower row; or, a bending portion is designed at the front end of the contact portion of each terminal, so that: the front end extensions of the upper and lower rows are close to each other in the up and down directions and maintain the up and down spacing; the front end of each front end extension is designed with a bending portion, so that: the second sub-material strip and the first sub-material strip fit each other with zero gap.

[0023] Step 2: Arrange the front and rear sides of the metal spacer strip and the integrated TYPE-C female terminal strip and send them into the injection mold together. Two metal spacers form a group and are respectively located on the left and right sides of the double-row terminals composed of the first terminal group and the second terminal group. The inlay injection molding process is used to mold the insulating body on the two metal spacers and the double-row terminals; the metal spacer strip and the integrated TYPE-C female terminal strip are exposed on the front and rear sides of the insulating body; each front end extension is sunk into the tongue of the insulating body. Furthermore, support parts are set for each front end extension in the injection mold to form a positioning for the top surface of each front end extension of the B6 terminal, the B7 terminal and the B8 terminal, and the bottom surface of each front end extension of the A6 terminal, the A7 terminal and the A8 terminal during injection molding; after injection molding, support positioning holes corresponding to each front end extension are formed on the tongue of the insulating body.

[0024] Step 3, remove the metal spacer strip and the integrated TYPE-C female terminal strip that are exposed outside the insulation body, and the rear end of the double-row terminal determines the position of the cutting line according to the length of the welding foot to retain the corresponding length of the welding foot; Step 4: Place the product obtained in step 3 (which can be defined as the TYPE-C female connector body) into the housing. The obtained 6-pin TYPE-C female connector includes an insulating body 200, a TYPE-C female connector terminal set 100 disposed on the insulating body 200, and a housing 300 covering the outer periphery of the insulating body 200; the insulating body 200 has a tongue 21, the TYPE-C female connector terminal set 100 is exposed on the upper and lower sides of the tongue 21, and a ring-shaped plug interface is formed between the inner wall surface of the housing 300 and the outer peripheral surface of the tongue 21; the housing 300 is a metal shell, which has the functions of protection, shielding and forming a plug interface.

[0025] The 6-pin TYPE-C female connector produced by the present invention can be adapted for use with a standard 16-pin TYPE-C male connector or a standard 24-pin TYPE-C male connector. Of course, if the standard 16-pin TYPE-C male connector or the standard 24-pin TYPE-C male connector is also correspondingly simplified in design so that its terminals are reduced and only the required terminals are retained, the 6-pin TYPE-C female connector produced by the present invention can also be adapted for use with the simplified TYPE-C male connector. Among them, B6 terminal 201, B7 terminal 202, B8 terminal 203, A6 terminal 401, A7 terminal 402, A8 terminal 403 may refer to the corresponding A6, A7, A8, B6, B7, B8 terminals of the standard 24PINTYPE-C female connector. For example, for the standard 24PIN TYPE-C female connector, its PIN definitions are (from left to right A1 to A12) GND, TX1+, TX1-, VBUS, CC1, D+, D-, SBU1, VBUS, RX2-, RX2+, GND; (from right to left B1 to B12) GND, TX2+, TX2-, VBUS, CC2, D+, D-, SBU2, VBUS, RX1-, RX1+, GND. The present invention can be a simplified design based on a standard 24PINTYPE-C female connector. The definitions of A6\A7\A8\B6\B7\B8 mentioned in the present invention are the same as those of A6\A7\A8\B6\B7\B8 of a standard 24PINTYPE-C female connector. Alternatively, the B6 terminal 201, the B7 terminal 202, the B8 terminal 203, the A6 terminal 401, the A7 terminal 402, and the A8 terminal 403 may refer to the corresponding A6, A7, A8, B6, B7, and B8 terminals of the standard 16-pin TYPE-C female connector. For example, for the standard 16-pin TYPE-C female connector, the PIN definitions are (from left to right A1, A4 to A9, A12) GND, TVBUS, CC1, D+, D-, SBU1, VBUS, and GND; (from right to left B1, B4-B9, B12) GND, VBUS, CC2, D+, D-, SBU2, VBUS, and GND. The present invention may be a simplified design based on the standard 16-pin TYPE-C female connector. The A6\A7\A8\B6\B7\B8 mentioned in the present invention are defined in the same manner as the standard 16-pin The A6\A7\A8\B6\B7\B8 of the TYPE-C female connector are the same; to meet the needs of transmitting analog audio signals on headphones.

[0026] Next, the structure and manufacturing method of the integrated TYPE-C female terminal strip are introduced in detail.

[0027] like Figures 2 to 10As shown, it shows the specific structure of an integrated TYPE-C female terminal strip.

[0028] An integrated TYPE-C female terminal strip comprises a main strip 1 extending left and right and a first terminal group 2 connected to the front edge of the main strip 1, wherein the first terminal group 2 comprises two or more terminals arranged at left and right intervals along the front edge of the main strip 1; an extension strip 3 is also connected to the front edge of the main strip 1 or the side of the first terminal group 2, wherein the extension strip 3 is connected to a second terminal group 4, wherein the second terminal group 4 and the first terminal group 2 are arranged side by side left and right, wherein the second terminal group 4 comprises two or more terminals arranged at left and right intervals along the front edge of the main strip 1; a foldable area 301 is formed on the extension strip 3 corresponding to between the second terminal group 4 and the first terminal group 2, wherein the extension strip 3 is bent in the foldable area 301 so that the second terminal group 4 and the first terminal group 2 are stacked up and down and a gap is maintained.

[0029] In this embodiment, the first terminal group 2 includes a B6 terminal 201, a B7 terminal 202 and a B8 terminal 203 arranged from right to left (i.e., in sequence: D+ terminal, D- terminal, SBU2 terminal), and the second terminal group 4 includes an A6 terminal 401, an A7 terminal 402 and an A8 terminal 403 arranged from right to left (i.e., in sequence: D+ terminal, D- terminal, SBU1 terminal), and after the extended material strip 3 is bent 180 degrees to the left and upward, the A6 terminal 401, the A7 terminal 402 and the A8 terminal 403 are arranged from left to right.

[0030] Furthermore, the rear end of the first terminal group 2 is connected to the main material strip 1, and the front end of the first terminal group 2 is connected to the first sub-material strip 5; the rear end of the second terminal group 4 is connected to the extended material strip 3, and the front end of the second terminal group 4 is connected to the second sub-material strip 6. The first terminal group 2 is formed into a whole by the provision of the first sub-material strip 5, and the second terminal group 4 is formed into a whole by the provision of the second sub-material strip 6, that is, the terminals in the same row are formed into a whole, which effectively improves the problem of poor alignment caused by the small cross-sectional area and long length of a single terminal during the stamping production process.

[0031] The second sub-material belt 6 and the first sub-material belt 5 are both provided with positioning holes E. After the extension material belt 3 is bent, the positioning holes E of the two are arranged vertically opposite to each other; and the side of the first sub-material belt 5 is widened and designed with positioning edges 51. After the extension material belt 3 is bent, the positioning edges 51 are exposed at the periphery of the second sub-material belt 6. Preferably, the second sub-material belt 6 is overlapped and attached to the top surface of the first sub-material belt 5, so that the upper and lower gap values ​​between the second sub-material belt 6 and the first sub-material belt 5 are zero, and then the rear end surfaces of the second sub-material belt 6 and the first sub-material belt 5 together constitute the sealing surface C1. During injection molding, it can play a role in sealing the front end of the tongue of the insulating body 200 to prevent the front end from overflowing during the injection molding process and causing flashing, which affects the product quality.

[0032] Typically, each terminal of the first terminal group 2 includes a first welding leg F1, a first fixing portion F2, a first contact portion F3 and a first front end extension portion F4 which are arranged in sequence from back to front, the first welding leg F1 is extended horizontally, the first fixing portion F2 is integrally extended upward from the front end of the first welding leg F1, the first contact portion F3 is integrally extended forward from the upper end of the first fixing portion F2, and the first front end extension portion F4 is integrally extended forward from the front end of the first contact portion F3 and connected to the first auxiliary material strip 5; each terminal of the second terminal group 4 includes a second welding leg G1, a second fixing portion G2, a second contact portion G3 and a second front end extension portion G4 which are arranged in sequence from back to front, the second welding leg G1 is extended horizontally, The second fixing portion G2 is integrally extended downward from the front end of the second welding leg G1, the second contact portion G3 is integrally extended forward from the lower end of the second fixing portion G2, and the second front end extension portion G4 is integrally extended forward from the front end of the second contact portion G3 and connected to the second auxiliary material strip 6; and after the extended material strip 3 is bent, the first welding leg F1 and the second welding leg G1 are arranged side by side with a spacing, the first fixing portion F2 and the second fixing portion G2 are arranged side by side with a spacing, the second contact portion G3 is located above the first contact portion F3 and maintains a spacing, the second auxiliary material strip 6 is stacked above the first auxiliary material strip 5, and the second front end extension portion G4 is arranged side by side with a spacing from the first front end extension portion F4. In this way, the problem of the second terminal group colliding with the first terminal group during bending is avoided.

[0033] Furthermore, the first front end extension portion F4 includes a first horizontal extension body F41 and a first bending portion F42, the first bending portion F42 is bent and extended from the front end of the first contact portion F3 to the front and obliquely upward (forming a Z-shaped bend), that is, the rear end of the first bending portion F42 is integrally connected to the front end of the first contact portion F3, the first horizontal extension body F41 is connected to the front end of the first bending portion F42, so that the first horizontal extension body F41 is higher than the first contact portion F3, and the top of the rear section area of ​​the first horizontal extension body F41 is thinned, as shown in the thinning portion F401; the front end of the first horizontal extension body F41 is connected to the first auxiliary material belt 5; and the second front end extension portion G4 includes a second horizontal extension body G41 and a second bending portion G42, the second bending portion G42 is bent and extended from the front end of the second contact portion G3 to the front and obliquely upward (forming a Z-shaped bend), that is, the second bending portion G42 The rear end is integrally connected to the front end of the second contact portion G3, and the second horizontal extension body G41 is connected to the front end of the second bending portion G42, so that the second horizontal extension body G41 is higher than the second contact portion G3, and the top of the rear section area of ​​the second horizontal extension body G41 is thinned, as shown in the thinned portion G401; the front end of the second horizontal extension body G41 is connected to the second auxiliary material strip 6; and after the extended material strip 3 is bent, the second horizontal extension body G41 is lower than the second contact portion G3, and the top of the rear section area of ​​the second horizontal extension body G41 is thinned downward, so that: the upper and lower gaps D1 of the rear sections of the first horizontal extension body F41 and the second horizontal extension body G41 are increased to ensure that there is enough gap between the upper and lower rows of terminals here to prevent short circuit between the upper and lower rows of terminals (because the first bending portion F42 and the second bending portion G42 are not completely staggered, if the upper and lower spacing is insufficient, it may cause short circuit problems between the upper and lower rows of terminals). In addition, through the setting of the first bending portion F42 and the second bending portion G42, the head structure of the first contact portion F3 and the second contact portion G3 is designed to be a bent and sunken type (the heads of the upper and lower rows of terminals are close to each other, which is equivalent to a middle design close to the inside of the tongue piece of the insulating body), and the upper and lower spacings between the first contact portion F3 and the second contact portion G3 are relatively large, while the spacing between the first bending portion F42 and the second bending portion G42 gradually decreases until the spacing between the first horizontal extension body F41 and the second horizontal extension body G41 is smaller. By utilizing the first bending portion F42, the second bending portion G42, the first horizontal extension body F41, and the second horizontal extension body G41 to sink into the tongue piece of the insulating body, the PIN warping phenomenon can be effectively prevented from occurring at the terminal head end, and the PIN warping phenomenon will not occur even after repeated plugging and unplugging.

[0034] The extended material strip 3 is bent 180±5 degrees to the left and upward. Before bending, the level of the welding feet of each terminal of the first terminal group 2 is slightly higher than the level of the welding feet of each terminal of the second terminal group 4. In this way, when the extended material strip 3 is bent upward by 180 degrees, the level of the welding feet of each terminal of the second terminal group 4 becomes higher, so as to be flush with the level of the welding feet of each terminal of the first terminal group 2. In this way, after folding, the terminal groups are arranged in two groups of upper and lower rows, and all their welding feet are at the same level, which is convenient for welding the connector with components such as PCB boards.

[0035] The first horizontal extension body F41 of the B6 terminal 201 deviates to the right from the front end of the first contact portion F3 thereof to increase the left-right distance D5 between the first horizontal extension body F41 of the B6 terminal 201 and the first horizontal extension body F41 of the B7 terminal 202; the second horizontal extension body G41 of the A6 terminal 401 deviates to the right from the front end of the first contact portion F3 thereof to increase the left-right distance D6 between the second horizontal extension body G41 of the A6 terminal 401 and the second horizontal extension body G41 of the A7 terminal 402; and after the extension strip 3 is bent, the second horizontal extension body G41 of the A6 terminal 401 The extension body G41 is located between the left and right distance between the first horizontal extension body F41 of the B7 terminal 202 and the first horizontal extension body F41 of the B8 terminal 203, the second horizontal extension body G41 of the A7 terminal 402 is located between the left and right distance between the first horizontal extension body F41 of the B7 terminal 202 and the first horizontal extension body F41 of the B6 terminal 201, and the first horizontal extension body F41 of the B6 terminal 201 is located between the left and right distance between the first horizontal extension body F41 of the B7 terminal 202 and the second horizontal extension body G41 of the A8 terminal 403. Since the second contact portion G3 of the upper row A6 / A7 terminal and the first contact portion F3 of the lower row B7 / B6 terminal are aligned vertically and overlapped (also referred to as the overlapped position in the horizontal direction), there is no supporting part in the mold during the insert molding process, which easily leads to the risk of short circuit between the upper and lower row terminals. In this embodiment, the first horizontal extension body F41 and the second horizontal extension body G41 are deliberately arranged side by side (i.e., staggered in the horizontal direction) to facilitate the addition of supporting parts in the mold to support and position the first horizontal extension body F41 and the second horizontal extension body G41, thereby avoiding the risk of short circuit between the upper and lower row terminals. It can be seen that the tongue piece 21 is provided with a supporting positioning hole K1 corresponding to the top or bottom surface of the first horizontal extension body F41 and the second horizontal extension body G41, which is the hole position left at the position of the supporting part in the injection mold.

[0036] Due to the setting of the extended material strip 3, the welding feet of the B6 terminal 201, the B7 terminal 202, and the B8 terminal 203 are respectively connected to the main material strip 1 through a section of the sub-material strip 101, which is equivalent to cutting the material at the front end of the sub-material strip 101 when the material strip is subsequently separated. Fig.13 As shown, the cutting line L. The rear end of the welding foot of the B6 terminal 201 is connected to the front edge of the main material strip 1 through a strip 101', and the left side of the strip 101' is integrally extended to the left and widened to form a left widened portion 102', and the distance D2 between the left widened portion 102' and the welding foot of the B7 terminal 202 is smaller than the distance D3 between the welding foot of the B6 terminal 201 and the welding foot of the B7 terminal 202; the extended material strip 3 is integrally extended to the right from the right side of the strip 101' of the welding foot of the B6 terminal 201, and the rear edge of the extended material strip 3 and the front edge of the main material strip 1 maintain a gap D4, the The A8 terminal 403, the A7 terminal 402 and the A6 terminal 401 are arranged at intervals from left to right on the front edge of the extended material strip 3, and after the extended material strip 3 is bent, the top surface of the right end of the extended material strip 3 is overlapped on the top surface of the left widened portion 102', so that the A6 terminal 401, the A7 terminal 402 and the A8 terminal 403 are arranged from left to right, and the welding pins of the A6 terminal 401 and the A7 terminal 402 are located between the left side of the welding pin of the B6 terminal 201 and the right side of the welding pin of the B7 terminal 202, and the welding pin of the A8 terminal 403 is located on the right side of the welding pin of the B6 terminal 201. The 6PIN welding pin can design the spacing between adjacent welding pins as needed, which is easy for the welding process.

[0037] like Figures 11 to 14 As shown, it shows the specific structure of another integrated TYPE-C female terminal strip.

[0038] Its Figures 8 to 16The specific structure of the one-piece TYPE-C female terminal strip shown in the figure is basically the same, and the main difference is that: further, a third bending portion F43 (forming a Z-shaped bend) is integrally connected between the front end of the first horizontally extending body F41 and the first secondary strip 5, and a fourth bending portion G43 (forming a Z-shaped bend) is integrally connected between the front end of the second horizontally extending body G41 and the second secondary strip 6. By using the design of the third bending portion F43 and the fourth bending portion G43, the first secondary strip The material strip 5 and the second sub-material strip 6 overlap and fit closely with each other after being bent to form an effective sealing structure; in the second embodiment, before the extension material strip 3 of the integrated TYPE-C female terminal material strip is bent, the first contact portion F3 to the first sub-material strip 5 is bent twice, namely: the first bending portion F42 and the third bending portion F43, so that the horizontal height of the first horizontal extension body F41 is slightly higher than the horizontal height of the first contact portion F3, and the horizontal height of the first sub-material strip 5 is higher than the horizontal height of the first horizontal extension body F41. Similarly, before the extension strip 3 of the integrated TYPE-C female terminal strip is bent, the second contact portion G3 to the second auxiliary strip 6 is bent twice, namely, the second bending portion G42 and the fourth bending portion G43, so that the horizontal height of the second horizontal extension body G41 is slightly higher than the horizontal height of the second contact portion G3, and the horizontal height of the second auxiliary strip 6 is slightly higher than the horizontal height of the second horizontal extension body G41. When the extension strip 3 of the integrated TYPE-C female terminal strip is bent 180 After ±5 degrees, the level of the second horizontal extension body G41 is slightly lower than the level of the second contact portion G3, and the level of the second auxiliary material belt 6 is slightly lower than the level of the second horizontal extension body G41. In this way, the head end of the upper and lower rows of terminals and the two auxiliary material belts gradually approach each other, the upper and lower spacing between the first contact portion F3 and the second contact portion G3 is greater than the upper and lower spacing between the first horizontal extension body F41 and the second horizontal extension body G41, and the first auxiliary material belt 5 and the second auxiliary material belt 6 are tightly fitted (the upper and lower spacing is zero). In addition, under the premise of adding the third bending portion F43 and the fourth bending portion G43, because the upper and lower spacing between the first horizontal extension body F41 and the second horizontal extension body G41 is sufficient to prevent the upper and lower rows of terminals from short-circuiting, the top thinning design of the rear section area of ​​the first horizontal extension body F41 is optional, and the bottom thinning design of the rear section area of ​​the second horizontal extension body G41 is optional, or only one side of the opposite surfaces of the two is selected to adopt the thinning design.

[0039] like Figures 15 to 21 As shown, the specific structure of the TYPE-C female connector for transmitting analog audio signals is introduced: The rear ends of the B6 terminal 201, the B7 terminal 202 and the B8 terminal 203 are all used as the connection end J5 of the main material strip, the rear end of the B6 terminal 201 is also used as the first connection end J1 of the extended material strip, and the rear ends of the A6 terminal 401, the A7 terminal 402 and the A8 terminal 403 are all used as the second connection end J2 of the extended material strip, so that: the extended material strip 3 can be integrally connected between the rear end of the B6 terminal 201 and the rear ends of the A6 terminal, the A7 terminal and the A8 terminal, and the extended material strip is bent upward 180±5 degrees around the first connection end J1 of the extended material strip and then overlapped above the rear end of the B6 terminal 201, so that the second terminal group 4 is located above the first terminal group 2; And, the front ends of the B6 terminal 201, the B7 terminal 202 and the B8 terminal 203 are all used as the first sub-belt connection end J3, and the front ends of the A6 terminal 401, the A7 terminal 402 and the A8 terminal 403 are all used as the second sub-belt connection end J4. The insulating body 200 is injection molded and fixed on the TYPE-C female terminal set 100, and the connection end J5 of the main material belt, the first connection end J1 of the extended material belt, and the second connection end J2 of the extended material belt are all exposed on the rear side of the insulating body 200, and the first sub-belt connection end J3 and the second sub-belt connection end J4 are all exposed on the front side of the tongue 21 of the insulating body 20.

[0040] The extended material strip 3 is bent upward around the first connection end J1 of the extended material strip and folded above the rear end of the B6 terminal 201, so that the second terminal group 4 is located above the first terminal group 2. Each terminal of the first terminal group 2 includes a first welding leg F1, a first fixing portion F2, a first contact portion F3, and a first front end extension portion F4, which are arranged in sequence from back to front. The first welding leg F1 is horizontally extended, the first fixing portion F2 is integrally extended upward from the front end of the first welding leg F1, the first contact portion F3 is integrally extended forward from the upper end of the first fixing portion F2, the first front end extension portion F4 is integrally extended forward from the front end of the first contact portion F3, and the first auxiliary material strip connection end J3 is arranged at the front end of the first front end extension portion F4; the first contact portions F3 of the B6 terminal 201, the B7 terminal 202 and the B8 terminal 203 are arranged side by side from right to left at the bottom of the tongue piece 21, and a first contact portion F3 is arranged on the bottom surface of the tongue piece 21. , the first terminal positioning hole K2 on the right side is used to accurately and reliably position all the first terminals; each terminal of the second terminal group 4 includes a second welding foot G1, a second fixing portion G2, a second contact portion G3, and a second front end extension portion G4 which are arranged in sequence from back to front, the second welding foot G1 is horizontally extended, and when the extended material strip 3 is bent, the second fixing portion G2 is integrally extended upward from the front end of the second welding foot G1, the second contact portion G3 is integrally extended forward from the upper end of the second fixing portion G2, the second front end extension portion G4 is integrally extended forward from the front end of the second contact portion G3, and the second auxiliary material strip connection end J4 is arranged at the front end of the second front end extension portion G4; the first front end extension portion F4 and the second front end extension portion G4 are buried in the tongue piece 21. The second contact portions G3 of the A6 terminal 401, the A7 terminal 402 and the A8 terminal 403 are arranged side by side from left to right at the top of the tongue piece 21, and second terminal positioning holes K3 are provided on the top surface of the tongue piece 21 on the left and right sides of the second contact portions G3 to accurately and reliably position all the second terminals.

[0041] Two metal spacers 400 are also arranged in the tongue 21. The two metal spacers 400 are respectively located on the left and right sides of the TYPE-C female terminal group 100. The outer sides of the two metal spacers 400 are close to the rear end as the connection end J6 of the spacer strip. The size of the two metal spacers 400 can be designed to be wider. Since the B6 terminal 201, the B7 terminal and the B8 terminal, the A6 terminal, the A7 terminal and the A8 terminal occupy a smaller area on the tongue 21 (roughly less than 1 / 3 of the area in the center), the metal spacers 400 on both sides are buried in the tongue 21. In addition to the basic function of the snap connection with the male plug, it can also play a role in strengthening the structural strength of the tongue 21. The spacer material strip 7 is arranged parallel to the opposite side of the main material strip 1, and a dividing material strip 71' is respectively arranged on the rear side of the spacer material strip 7 for each group of metal middle spacers 400 (that is, two metal middle spacers 400 form a group). The rear end of the dividing material strip 71' is connected to the connecting end J6 of the spacer material strip, leaving sufficient space for the left and right sides of the first sub-material strip 5 and the second sub-material strip 6.

[0042] The first welding leg F1 and the second welding leg G1 are arranged side by side with a spacing therebetween, the first fixing portion F2 and the second fixing portion G2 are arranged side by side with a spacing therebetween, the second contact portion G3 is located above the first contact portion F3 and maintains a spacing therebetween, and the second front end extension portion G4 is arranged side by side with a spacing therebetween.

[0043] The first front end extension portion F4 includes a first horizontal extension body F41 and a first bending portion F42. The first bending portion F42 is extended and bent forward and upward from the front end of the first contact portion F3. The first horizontal extension body F41 is connected to the front end of the first bending portion F42, so that the first horizontal extension body F41 is higher than the first contact portion F3; and the second front end extension portion G4 includes a second horizontal extension body G41 and a second bending portion G42. When the extended material strip 3 is bent upward by 180±5 degrees, the second bending portion G42 is extended and bent forward and downward from the front end of the second contact portion G3. The second horizontal extension body G41 is connected to the front end of the second bending portion G42, so that the second horizontal extension body G41 is lower than the second contact portion G3. The top of the rear section area of ​​the first horizontal extension body F41 is designed to be thinned, as shown in the thinning portion F401; the top of the rear section area of ​​the second horizontal extension body G41 is designed to be thinned, as shown in the thinning portion G401, when the extended material strip 3 is bent 180±5 degrees, the top thinning design portion G401 of the rear section area of ​​the second horizontal extension body G41 is set downward, so that: the upper and lower gaps D1 between the rear sections of the first horizontal extension body F41 and the second horizontal extension body G41 are increased; or, the front section of the first horizontal extension body F41 is provided with a third bending portion F43, and the front section of the second horizontal extension body G41 is provided with a fourth bending portion G43, so that: the horizontal height of the first auxiliary material strip connection end J3 is higher than the horizontal height of the first horizontal extension body F41, and the horizontal height of the second auxiliary material strip connection end J4 is lower than the horizontal height of the second horizontal extension body G41.

[0044] The first horizontal extension body F41 of the B6 terminal 201 deviates to the right from the front end of the first contact portion F3 thereof to increase the left-right distance D5 between the first horizontal extension body F41 of the B6 terminal 201 and the first horizontal extension body F41 of the B7 terminal 402; the second horizontal extension body G41 of the A6 terminal 401 deviates to the right from the front end of the first contact portion G3 thereof to increase the left-right distance D6 between the second horizontal extension body G41 of the A6 terminal 401 and the second horizontal extension body G41 of the A7 terminal 402; the second horizontal extension body G41 of the A6 terminal 401 is located between the first horizontal extension body F41 of the B7 terminal 202 and the B The second horizontal extension body G41 of the A7 terminal 402 is located between the left and right distance D5 of the first horizontal extension body F41 of the B7 terminal 202 and the left and right distance D5 of the first horizontal extension body F41 of the B6 terminal 201, and the first horizontal extension body F41 of the B6 terminal 201 is located between the left and right distance D8 of the second horizontal extension body G41 of the A7 terminal 402 and the second horizontal extension body G41 of the A8 terminal 403; the tongue piece 21 is provided with a support positioning hole K1 corresponding to the top surface or bottom surface of the first horizontal extension body F41 and the second horizontal extension body G41.

[0045] The design focus of the present invention is that two terminal groups are arranged side by side on the same main material strip, and the upper and lower rows of terminals are formed by folding, and the upper and lower rows of terminals are cleverly arranged on the same continuous material strip as one, so as to realize the upper and lower row terminal requirements on the integrated TYPE-C female terminal strip, and it is easy to meet the arrangement position relationship and adjacent spacing control of A6, A7, A8, B6, B7, B8, reduce the number of parts, facilitate injection molding, reduce the difficulty of product production, and reduce production costs; Compared with the traditional technology that uses two continuous material strips for the upper and lower rows of terminals, the production yield and quality of the TYPE-C female connector of the present invention are further improved. The TYPE-C female connector has a long service life and stable and reliable performance, which avoids the impact of TYPE-C female connector failure on user experience of small electronic products such as headphones, and also avoids the problem of increased failure rate, return rate and even scrapping of small electronic products such as headphones due to TYPE-C female connector failure. Therefore, using the simplified TYPE-C 6PIN female connector of the present invention on small electronic products such as headphones is conducive to improving user experience of small electronic products such as headphones, reducing the after-sales service costs of small electronic products such as headphones, and is conducive to the promotion and popularization of TYPE-C female connectors in small electronic products such as headphones.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A simplified implementation method of a TYPE-C female connector for transmitting analog audio signals, characterized in that: The steps include: Step 1, prepare an integrated TYPE-C female terminal strip and a metal spacer strip; When making an integrated TYPE-C female terminal strip, firstly, a first terminal group and a second terminal group arranged side by side are integrally arranged on the front side of the main strip, wherein the first terminal group includes B6 terminals, B7 terminals and B8 terminals arranged from right to left, and the second terminal group includes A6 terminals, A7 terminals and A8 terminals arranged from right to left, and then the second terminal group is bent upward by 180±5 degrees and then stacked on top of the first terminal group in a spaced manner; When manufacturing the metal middle spacer strip, two sub-strips with left and right spacing are integrally arranged on the rear side of the spacer strip, and each of the two sub-strips is integrally connected with a metal middle spacer; Step 2, the metal spacer strip and the front and rear sides of the integrated TYPE-C female terminal strip are sent into the injection mold together, two metal spacers form a group and are respectively located on the left and right sides of the double-row terminals composed of the first terminal group and the second terminal group, and an inlay injection molding process is used to form an insulating body on the two metal spacers and the double-row terminals; Step 3, remove the metal spacer strip and the integrated TYPE-C female terminal strip that are exposed outside the insulation body, and the rear end of the double-row terminal determines the position of the cutting line according to the length of the welding foot to retain the corresponding length of the welding foot; Step 4: Put the product obtained in step 3 into the shell.

2. According to claim 1, a simplified implementation method of a TYPE-C female connector for transmitting analog audio signals is characterized in that: In step 1, an extension material strip is integrally connected to the right side of the rear end of the B6 terminal, and the A6 terminal, A7 terminal and A8 terminal are arranged side by side from right to left on the front side of the extension material strip. A foldable area is formed on the extension material strip corresponding to the B6 terminal and the A6 terminal. The extension material strip is bent 180±5 degrees to the left and upward in the foldable area, so that the second terminal group and the first terminal group are stacked up and down and a gap is maintained.

3. The simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 2, characterized in that: A stacking positioning portion is integrally extended between the rear end of the B6 terminal and the main material strip. The bending process of the extended material strip is divided into two steps: first, the extended material strip is bent 90±5 degrees to the left and upward, and then bent to the left and downward until it is stacked on the stacking positioning portion.

4. A simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 1 or 2, characterized in that: In step 1, a first sub-material strip is connected to the front end of the first terminal group, and a second sub-material strip is connected to the front end of the second terminal group. When the extended material strip is bent leftward and upward to a stacked shape, the second sub-material strip is attached to the top surface of the first sub-material strip.

5. The simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 1, characterized in that: In step 1, the fixing portions of the B6 terminal, the B7 terminal, the B8 terminal, the A6 terminal, the A7 terminal, and the A8 terminal are staggered in the horizontal direction.

6. The simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 1, characterized in that: In step 1, the front end of each contact portion of the B6 terminal, the B7 terminal, the B8 terminal, the A6 terminal, the A7 terminal and the A8 terminal is extended with a front end extension portion, and each front end extension portion is staggered in the horizontal direction; In step 2, each front end extension portion is sunk into the tongue piece of the insulating body.

7. The simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 6, characterized in that: In step 2, supporting parts are arranged for each front end extension in the injection mold to position the top surface of each front end extension of the B6 terminal, the B7 terminal and the B8 terminal, and to position the bottom surface of each front end extension of the A6 terminal, the A7 terminal and the A8 terminal during injection molding; after injection molding, supporting positioning holes corresponding to each front end extension are formed on the tongue of the insulating body.

8. The simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 6, characterized in that: In step 1, the rear end of the front end extension portion of each terminal is connected to the front end of the corresponding contact portion through a bending portion, so that the front end extension portions of the upper and lower rows are close to each other in the up and down directions, and the distance between the rear sections of the front end extension portions of the upper and lower rows is increased by thinning the bottom surface of the front end extension portion of the upper row and thinning the top surface of the front end extension portion of the lower row.

9. The simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 6, characterized in that: In step 1, a bending portion is designed at the front end of the contact portion of each terminal so that: the front end extension portions of the upper and lower rows are close to each other in the vertical direction and maintain the upper and lower spacing; a bending portion is designed at the front end of each front end extension portion so that: the second auxiliary material strip and the first auxiliary material strip are fitted to each other with zero gap.

10. The simplified implementation method of a TYPE-C female connector for transmitting analog audio signals according to claim 4, characterized in that: In step 1, positioning holes are provided on the first secondary material belt and the first secondary material belt. When the extended material belt is bent leftward and upward to a stacked state, the positioning holes of the second secondary material belt and the first secondary material belt are vertically opposite and connected.

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