One-time injection molding Type C connector

Abstract

The utility model discloses a Type C connector formed by one-time injection molding, comprising an upper layer terminal module which comprises upper layer terminals and first and second material belts connected to the front and rear ends of the upper layer terminals, the upper layer terminals located at the two sides are upper layer grounding terminals, and first hooks are formed at the outer sides of the upper layer grounding terminals; the lower-layer terminal module comprises lower-layer terminals and third and fourth material belts connected to the front and rear ends of the lower-layer terminals, the lower-layer terminals located on the two sides are lower-layer grounding terminals, and second hooks are formed on the outer sides of the lower-layer grounding terminals; the third material belt is overlapped with the first material belt, the fourth material belt is overlapped with the second material belt, the front end of the first contact part of the upper-layer terminal and the front end of the second contact part of the lower-layer terminal are distributed in a staggered manner, and the rear end of the first pin part of the upper-layer terminal and the rear end of the second pin part of the lower-layer terminal are distributed in a staggered manner; the insulator is formed on the upper-layer terminal module and the lower-layer terminal module in a one-time injection molding mode, and after the insulator is formed, the first material belt, the second material belt, the third material belt and the fourth material belt are cut off; and the shell is fixed at the periphery of the insulator.

Description

Technical Field:

[0001] The utility model relates to the technical field of connectors, in particular to a Type-C connector formed by one-time injection molding. Background Art:

[0002] USB is the abbreviation of Universal Serial BUS in English, and its Chinese abbreviation is "universal serial line". It is an external bus standard used to standardize the connection and communication between a computer and external devices, and is an interface technology applied in the PC field. USB was jointly proposed by multiple companies such as Intel, Compaq, IBM, and Microsoft at the end of 1994. USB not only has a fast transmission speed but is also very convenient to use. The USB interface also has the advantages of supporting plug-and-play and hot plugging of devices, flexible connection, independent power supply, etc. It can be connected to a mouse, keyboard, printer, scanner, camera, flash drive, MP3 player, mobile phone, digital camera, external hard drive, external optical or floppy drive, USB network card, ADSL Modem, Cable Modem, etc. Almost all external devices are equipped with a USB interface and are very widely used. Type-C is a connection interface of the USB interface. It can be inserted regardless of the front and back sides, with a size of approximately 8.3mm × 2.5mm, and like other interfaces, it supports functions such as USB-standard charging, data transmission, and display output. The Type-C connector is mainly for thinner and more slender devices, enhancing usability and paving the way for performance enhancement of future USB versions.

[0003] The standard Type-C connector has a large number of terminals, generally 24 terminals, and it is impossible to integrally injection mold all the terminals with the insulating base at one time, but requires two or even three times of injection molding, which results in a large cost and is not conducive to improving market competitiveness. In addition, the standard Type-C connector generally requires an independent middle iron sheet. The hook part of the middle iron sheet is exposed on both sides of the tongue plate and is used for clamping and positioning with the inserted plug to enhance the insertion and extraction force. For example, products such as a double-row SMT surface-mounted USB TYPE-C connector disclosed in the Chinese utility model with the patent number 202023232192.9 all have the above problems.

[0004] In view of this, the inventor proposes the following technical solutions. Content of the Utility Model:

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a Type-C connector formed by one-time injection molding.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: the one-time injection-molded Type C connector includes: an upper terminal module, which includes a plurality of upper terminals distributed in a row, a first material strip connected to the front end of the upper terminals, and a second material strip connected to the rear end of the upper terminals, wherein the upper terminals located on both sides are upper grounding terminals, and a first hook is formed on the outer side of the upper grounding terminals; a lower terminal module, which includes a plurality of lower terminals distributed in a row, a third material strip connected to the front end of the lower terminals, and a fourth material strip connected to the rear end of the upper terminals, wherein the lower terminals located on both sides are lower grounding terminals, and a second hook is formed on the outer side of the lower grounding terminals; the third material strip overlaps with the first material strip, and the fourth material strip overlaps with the first material strip. Overlapping with the second material strip, wherein the front end of the first contact portion of the upper terminal is staggered with the front end of the second contact portion of the lower terminal, and the rear end of the first pin portion of the upper terminal is staggered with the rear end of the second pin portion of the lower terminal; an insulator, which is injection molded on the upper terminal module and the lower terminal module at one time, wherein the first contact portion is spaced apart on the upper end surface of the tongue plate of the insulator, and the second contact portion is spaced apart on the lower end surface of the tongue plate of the insulator, and the first pin portion and the second pin portion are both distributed outside the rear end surface of the insulator; the first hook and the second hook are respectively exposed outside the two side surfaces of the tongue plate; after the insulator is injection molded, the first, second, third and fourth material strips are cut off; a shell, which is fixedly wrapped around the outer periphery of the insulator and forms an insertion space with the tongue plate.

[0007] Furthermore, in the above technical solution, the lower end surface of the upper grounding terminal is fitted with the upper end surface of the lower grounding terminal, and the first hook is fitted with the second hook; the upper grounding terminal is stamped to form a first conductive arm protruding upward; the lower grounding terminal is stamped to form a second conductive arm protruding downward.

[0008] Furthermore, in the above technical solution, the first positioning hole of the first material belt is connected to the third positioning hole of the third material belt; the second positioning hole of the second material belt is connected to the fourth positioning hole of the fourth material belt.

[0009] Further, in the above technical solution, the upper terminal includes a first main body portion, a first pin portion formed by longitudinally bending along the rear end of the first main body portion, and a first contact portion extended and formed at the front end of the first main body portion, a first material bridge bent transversely is formed at the front end of the first contact portion, and the first material bridge is integrally connected to the first material strip; the lower terminal includes a second main body portion, a second pin portion formed by longitudinally bending along the rear end of the second main body portion, and a second contact portion extended and formed at the front end of the second main body portion, a second material bridge bent transversely is formed at the front end of the second contact portion, and the second material bridge is integrally connected to the third material strip; wherein the second material bridge is transversely bent in an opposite direction to the first material bridge, so that the second material bridge does not overlap with the first material bridge, and the first main body portion and the first contact portion are respectively spaced apart from the second main body portion and the second contact portion.

[0010] Furthermore, in the above technical solution, the second material bridges are staggered with the first material bridges, and the upper end surface of the second material bridges and the lower end surface of the first material bridges are on the same horizontal plane.

[0011] Furthermore, in the above technical solution, a first bending leg and a second bending leg are formed in the middle of both sides of the shell, wherein the bending portion of the first bending leg is provided with an opening.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0013] 1. The utility model eliminates the middle iron sheet / middle steel sheet, so that there is no need to set the middle iron sheet / middle steel sheet between the upper terminal module and the lower terminal module. Instead, the first hook and the second hook for realizing the hook function of the middle iron sheet / middle steel sheet (i.e., the function of holding and positioning with the plug) are respectively formed on the outer side of the upper grounding terminal in the upper terminal module and the outer side of the lower grounding terminal in the lower terminal module. When the utility model is plugged into the Type C plug, the first hook and the second hook can be used to hold and position the Type C plug to increase the plugging and pulling force. That is to say, the upper and lower grounding terminals not only realize the grounding function, but also integrate the hook function of the middle iron sheet / middle steel sheet, which can reduce the number of parts, reduce the difficulty of product manufacturing, simplify the process steps, and have a more stable structure.

[0014] 2. Since there is no need to set a middle iron sheet / middle steel sheet between the upper terminal module and the lower terminal module, and the front end of the first contact portion of the upper terminal is staggered with the front end of the second contact portion of the lower terminal, and the rear end of the first pin portion of the upper terminal is staggered with the rear end of the second pin portion of the lower terminal, so that after the third material strip is overlapped with the first material strip and the fourth material strip is overlapped with the second material strip, the upper terminal and the lower terminal themselves will not contact each other. At this time, the insulator can be placed in a mold for injection molding, so that the insulator is injection molded on the upper terminal module and the lower terminal module at one time, which is simple to manufacture, has fewer process steps, and The structure is stable and the cost is low. The first, second, third and fourth material strips are cut off later, leaving only the upper terminals and the lower terminals fixed on the insulator, wherein the first contact portions are spaced apart on the upper end surface of the tongue plate of the insulator, and the second contact portions are spaced apart on the lower end surface of the tongue plate of the insulator, and the first pin portion and the second pin portion are both distributed outside the rear end surface of the insulator; the first hook and the second hook are respectively exposed outside the two side surfaces of the tongue plate, and finally the outer shell is wrapped around the outer periphery of the insulator to complete the product manufacturing. The manufacturing is simple, the process steps are fewer, the structure is more stable, and the cost is lower, which makes the utility model highly competitive in the market. Description of the drawings:

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a stereogram of another viewing angle of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the utility model after the shell is disassembled;

[0018] Figure 4 This is a bottom view of the utility model after the shell is disassembled;

[0019] Figure 5 It is an assembly diagram of the upper terminal module, the lower terminal module, and the insulator in the utility model;

[0020] Figure 6 It is an assembly diagram of the upper terminal module and the lower terminal module in the utility model;

[0021] Figure 7 It is an assembly diagram of the upper terminal module and the lower terminal module in the utility model from another perspective;

[0022] Figure 8 It is a structural diagram of the upper terminal module of the utility model;

[0023] Fig. 9 It is a structural diagram of the lower terminal module of the utility model;

[0024] Fig.10It is a structural diagram of a PCB board adapted to the utility model. Specific implementation method:

[0025] The utility model is further described below in conjunction with specific embodiments and drawings.

[0026] See Figure 1-9 As shown, a one-step injection-molded Type C connector includes: an upper terminal module 1, a lower terminal module 2, an insulator 3 and a shell 4.

[0027] The upper terminal module 1 includes a plurality of upper terminals 11 distributed in a row, a first material strip 12 connected to the front end of the upper terminal 11, and a second material strip 14 connected to the rear end of the upper terminal 11, wherein the upper terminals located on both sides are upper grounding terminals 13, and a first hook 130 is formed on the outer side of the upper grounding terminal 13; the lower terminal module 2 includes a plurality of lower terminals 21 distributed in a row, a third material strip 22 connected to the front end of the lower terminal 21, and a fourth material strip 24 connected to the rear end of the upper terminal 11, wherein the lower terminals located on both sides are lower grounding terminals 23, and a second hook 230 is formed on the outer side of the lower grounding terminal 23; the third material strip 22 overlaps with the first material strip 12, and the fourth material strip 24 overlaps with the second material strip 14, wherein the first contact portion of the upper terminal 11 The front end of 111 is staggered with the front end of the second contact portion 211 of the lower terminal 21, and the rear end of the first pin portion 112 of the upper terminal 11 is staggered with the rear end of the second pin portion 212 of the lower terminal 21; the insulator 3 is injection molded on the upper terminal module 1 and the lower terminal module 2 at one time, wherein the first contact portion 111 is spaced apart on the upper end surface of the tongue plate 31 of the insulator 3, and the second contact portion 211 is spaced apart on the lower end surface of the tongue plate 31 of the insulator 3, and the first pin portion 112 and the second pin portion 212 are both distributed outside the rear end surface of the insulator 3; the first hook 130 and the second hook 230 are respectively exposed outside the two side surfaces of the tongue plate 31; after the insulator 3 is injection molded, the first, second, third and fourth material strips are cut off; the shell 4 is fixedly wrapped around the outer periphery of the insulator 3, and an insertion space is formed between the shell 4 and the tongue plate 31. That is to say, the utility model eliminates the middle iron sheet / middle steel sheet, so that there is no need to set the middle iron sheet / middle steel sheet between the upper terminal module 1 and the lower terminal module 2. Instead, the first hook 130 and the second hook 230 for realizing the hook function of the middle iron sheet / middle steel sheet (that is, the function of holding and positioning with the plug) are respectively formed on the outer side of the upper grounding terminal 13 in the upper terminal module 1 and the outer side of the lower grounding terminal 23 in the lower terminal module 2. When the utility model is plugged into the Type C plug, the first hook 130 and the second hook 230 can be used to hold and position the Type C plug to increase the plugging and pulling force. In other words, the upper and lower grounding terminals not only realize the grounding function, but also integrate the hook function of the middle iron sheet / middle steel sheet, which can reduce the number of parts, reduce the difficulty of product manufacturing, simplify the process steps, and have a more stable structure.Since there is no need to set a middle iron sheet / middle steel sheet between the upper terminal module 1 and the lower terminal module 2, and the front end of the first contact portion 111 of the upper terminal 11 is staggered with the front end of the second contact portion 211 of the lower terminal 21, and the rear end of the first pin portion 112 of the upper terminal 11 is staggered with the rear end of the second pin portion 212 of the lower terminal 21, so that after the third material strip 22 is overlapped with the first material strip 12 and the fourth material strip 24 is overlapped with the second material strip 14, the upper terminal 11 and the lower terminal 21 themselves will not contact each other, and at this time, the insulator 3 can be placed in a mold for injection molding, so that the insulator 3 is injection molded at one time on the upper terminal module 1 1 and the lower terminal module 2, which is simple to manufacture, with fewer process steps, stable structure and low cost. The first, second, third and fourth material strips are cut off later, and only the upper terminal 11 and the lower terminal 21 are fixed to the insulator 3, wherein the first contact portions 111 are spaced apart on the upper end surface of the tongue plate 31 of the insulator 3, and the second contact portions 211 are spaced apart on the lower end surface of the tongue plate 31 of the insulator 3, and the first pin portion 112 and the second pin portion 212 are both distributed outside the rear end surface of the insulator 3; the first hook 130 and the second hook 230 are respectively exposed outside the two side surfaces of the tongue plate 31, and finally the outer shell is wrapped around the outer periphery of the insulator 3 to complete the product manufacturing. It is simple to manufacture, with fewer process steps, more stable structure and lower cost, which makes the utility model have strong market competitiveness.

[0028] The lower end surface of the upper grounding terminal 13 is fitted with the upper end surface of the lower grounding terminal 23, and the first hook 130 is fitted with the second hook 230, so as to form a hook with a more stable structure, which can better realize the hook function of the iron sheet / steel sheet.

[0029] The upper grounding terminal 13 is stamped with a first conductive arm 131 protruding upward, and the upper end surface of the first conductive arm 131 is flush with the upper end surface of the first contact portion 111 to better achieve conductive connection; the lower grounding terminal 23 is stamped with a second conductive arm 231 protruding downward, and the upper end surface of the second conductive arm 231 is flush with the upper end surface of the second contact portion 211 to better achieve conductive connection.

[0030] The first positioning hole 121 of the first material belt 12 is connected to the third positioning hole 221 of the third material belt 22; the second positioning hole 141 of the second material belt 14 is connected to the fourth positioning hole 241 of the fourth material belt 24, so as to facilitate the positioning of each material belt.

[0031] The upper terminal 11 includes a first main body 113, a first pin 112 formed by longitudinal bending along the rear end of the first main body 113, and a first contact portion 111 extending and formed at the front end of the first main body 113, and a first material bridge 114 formed at the front end of the first contact portion 111 is formed with a transverse bending, and the first material bridge 114 is integrally connected to the first material strip 12; the lower terminal 21 includes a second main body 213, a second pin 212 formed by longitudinal bending along the rear end of the second main body 213 and a second contact portion 211 extending and formed at the front end of the second main body portion 213, a second material bridge 214 is formed at the front end of the second contact portion 211 with a transverse bending, and the second material bridge 214 is integrally connected to the third material strip 22; wherein the second material bridge 214 is transversely bent in the opposite direction to the first material bridge 114, so that the second material bridge 214 does not overlap with the first material bridge 114, and the first main body portion 113 and the first contact portion 111 are spaced from the second main body portion 213 and the second contact portion 211 respectively. By directly cutting off the second material bridge 214 and the first material bridge 114 at a later stage, the purpose of not contacting the upper terminal 11 with the lower terminal 21 can be achieved.

[0032] Specifically, the second material bridge 214 and the first material bridge 114 are staggered, and the upper end surface of the second material bridge 214 and the lower end surface of the first material bridge 114 are on the same horizontal plane, so that the first material strip 12 and the third material strip 22 are fitted to position the upper terminal module 1 and the lower terminal module 2, which is convenient for the subsequent one-time injection molding of the insulator 3.

[0033] The shell 4 is formed with a first bending leg 41 and a second bending leg 42 at the middle of both sides, wherein the bending portion of the first bending leg 41 is provided with an opening 411. Fig.10 As shown, when the utility model is in use, it is installed at the installation opening 51 of the PCB board 5, wherein the first bending leg 41 and the second bending leg 42 are respectively inserted into the soldering pad hole 52 set on the periphery of the installation opening 51 of the PCB board 5, and fixed by soldering, wherein the opening 411 of the first bending leg 41 accommodates the solder, so that the first bending leg 41 can be more stably soldered to the PCB board 5, and the overall lower half of the utility model is sunk into the installation opening 51, which can reduce the overall height of the utility model after being installed on the PCB board.

[0034] In summary, the utility model eliminates the middle iron sheet / middle steel sheet, so that there is no need to set the middle iron sheet / middle steel sheet between the upper terminal module 1 and the lower terminal module 2. Instead, the first hook 130 and the second hook 230 for realizing the hook function of the middle iron sheet / middle steel sheet (i.e., the function of holding and positioning with the plug) are respectively formed on the outer side of the upper grounding terminal 13 in the upper terminal module 1 and the outer side of the lower grounding terminal 23 in the lower terminal module 2. When the utility model is plugged into the Type C plug, the first hook 130 and the second hook 230 can be used to hold and position the Type C plug to increase the plugging and pulling force. In other words, the upper and lower grounding terminals not only realize the grounding function, but also integrate the hook function of the middle iron sheet / middle steel sheet, which can reduce the number of parts, reduce the difficulty of product manufacturing, simplify the process steps, and have a more stable structure. Since there is no need to set a middle iron sheet / middle steel sheet between the upper terminal module 1 and the lower terminal module 2, and the front end of the first contact portion 111 of the upper terminal 11 is staggered with the front end of the second contact portion 211 of the lower terminal 21, and the rear end of the first pin portion 112 of the upper terminal 11 is staggered with the rear end of the second pin portion 212 of the lower terminal 21, so that after the third material strip 22 is overlapped with the first material strip 12 and the fourth material strip 24 is overlapped with the second material strip 14, the upper terminal 11 and the lower terminal 21 themselves will not contact each other, and at this time, the insulator 3 can be placed in a mold for injection molding, so that the insulator 3 is injection molded at one time on the upper terminal module 1 1 and the lower terminal module 2, which is simple to manufacture, with fewer process steps, stable structure and low cost. The first, second, third and fourth material strips are cut off later, and only the upper terminal 11 and the lower terminal 21 are fixed to the insulator 3, wherein the first contact portions 111 are spaced apart on the upper end surface of the tongue plate 31 of the insulator 3, and the second contact portions 211 are spaced apart on the lower end surface of the tongue plate 31 of the insulator 3, and the first pin portion 112 and the second pin portion 212 are both distributed outside the rear end surface of the insulator 3; the first hook 130 and the second hook 230 are respectively exposed outside the two side surfaces of the tongue plate 31, and finally the outer shell is wrapped around the outer periphery of the insulator 3 to complete the product manufacturing. It is simple to manufacture, with fewer process steps, more stable structure and lower cost, which makes the utility model have strong market competitiveness.

[0035] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A one-shot injection molded Type C connector, characterized in that: include: An upper terminal module (1) comprises a plurality of upper terminals (11) arranged in a row, a first material strip (12) connected to the front end of the upper terminal (11), and a second material strip (14) connected to the rear end of the upper terminal (11), wherein the upper terminals located on both sides are upper grounding terminals (13), and a first hook (130) is formed on the outer side of the upper grounding terminal (13); A lower terminal module (2), comprising a plurality of lower terminals (21) arranged in a row, a third material strip (22) connected to the front end of the lower terminals (21), and a fourth material strip (24) connected to the rear end of the upper terminals (11), wherein the lower terminals located on both sides are lower grounding terminals (23), and a second hook (230) is formed on the outer side of the lower grounding terminal (23); the third material strip (22) is overlapped with the first material strip (12), and the fourth material strip (24) is overlapped with the second material strip (14), wherein the front end of the first contact portion (111) of the upper terminal (11) and the front end of the second contact portion (211) of the lower terminal (21) are arranged in an alternating manner, and the rear end of the first pin portion (112) of the upper terminal (11) and the rear end of the second pin portion (212) of the lower terminal (21) are arranged in an alternating manner; An insulator (3) is injection molded on an upper terminal module (1) and a lower terminal module (2) at one time, wherein the first contact portion (111) is distributed at intervals on the upper end surface of the tongue plate (31) of the insulator (3), the second contact portion (211) is distributed at intervals on the lower end surface of the tongue plate (31) of the insulator (3), the first pin portion (112) and the second pin portion (212) are both distributed outside the rear end surface of the insulator (3); the first hook (130) and the second hook (230) are respectively exposed outside the two side surfaces of the tongue plate (31); after the insulator (3) is injection molded, the first, second, third and fourth material strips are cut off; The outer shell (4) is fixedly wrapped around the outer periphery of the insulator (3) and forms an insertion space between the outer shell and the tongue plate (31).

2. The one-shot injection molded Type C connector according to claim 1, characterized in that: The lower end surface of the upper grounding terminal (13) is in contact with the upper end surface of the lower grounding terminal (23), and the first hook (130) is in contact with the second hook (230); the upper grounding terminal (13) is stamped to form a first conductive arm (131) protruding upward; and the lower grounding terminal (23) is stamped to form a second conductive arm (231) protruding downward.

3. The one-shot injection molded Type C connector according to claim 1, characterized in that: The first positioning hole (121) of the first material belt (12) is connected to the third positioning hole (221) of the third material belt (22); the second positioning hole (141) of the second material belt (14) is connected to the fourth positioning hole (241) of the fourth material belt (24).

4. A one-shot injection molded Type C connector according to any one of claims 1 to 3, characterized in that: The upper terminal (11) comprises a first main body (113), a first pin portion (112) formed by longitudinal bending along the rear end of the first main body (113), and a first contact portion (111) extending and formed at the front end of the first main body (113), the front end of the first contact portion (111) is formed with a first material bridge (114) bent transversely, and the first material bridge (114) is integrally connected to the first material strip (12); the lower terminal (21) comprises a second main body (213), a second pin portion (212) formed by longitudinal bending along the rear end of the second main body (213), and a second contact portion (211) extending from the front end of the second main body portion (213), wherein a second material bridge (214) with a transverse bend is formed at the front end of the second contact portion (211), and the second material bridge (214) is integrally connected to the third material strip (22); wherein the transverse bending direction of the second material bridge (214) is opposite to that of the first material bridge (114), so that the second material bridge (214) does not overlap with the first material bridge (114), and the first main body portion (113) and the first contact portion (111) are spaced apart from the second main body portion (213) and the second contact portion (211), respectively.

5. The one-shot injection molded Type C connector according to claim 4, characterized in that: The second material bridges (214) and the first material bridges (114) are arranged in an alternating manner, and the upper end surface of the second material bridges (214) and the lower end surface of the first material bridges (114) are on the same horizontal plane.

6. The one-shot injection molded Type C connector according to claim 4, characterized in that: A first bending leg (41) and a second bending leg (42) are formed in the middle of both sides of the shell (4), wherein the bending portion of the first bending leg (41) is provided with an opening (411).

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