CN201018148Y - Universal Bus Plug Connector - Google Patents

Abstract

The utility model discloses a Universal Bus plug connector especially indicates miniature Universal Bus plug connector (Micro Universal Series Bus; Micro USB), this plug connector, include: the insulating body is provided with a base and a cover seat, wherein the base is provided with a plurality of terminal grooves, and the cover seat is clamped and fixed on the base; several terminals integrally set on the cover seat and including joint part and butt joint part; the metal shielding shell is coated on the outer side of the insulating body, and the structure can make the manufacturing and assembling of a Micro USB plug connector to be simple and convenient, thereby improving the manufacturing economic benefit of the Micro USB plug connector, having better telecommunication transmission quality, and in addition, ensuring that the connection of the joint part of the terminal and a cable cannot be influenced in the plugging and unplugging process of the plug connector.

Description

Universal Bus Plug Connector

technical field

The utility model relates to an electrical connector, in particular to a miniature universal bus plug connector (Micro Universal series Bus; USB), which has the advantages of convenience in assembly and manufacture, good docking performance and stable electrical connection. .

Background technique

Electrical connectors are the main switching components used for telecommunication transmission in various electronic products. Due to the continuous advancement of electronic technology, electronic products tend to be thinner and shorter in design. Therefore, the electrical connectors installed in various electronic devices must also be able to match accordingly. , and at the same time of miniaturization, it is necessary to ensure the quality of telecommunication transmission. The utility model relates to a miniature universal serial bus plug connector (Micro USB), and its structure includes: an insulating body, several terminals and a metal shielding shell, wherein the several terminals are configured according to the configuration of the terminal with a metal sheet body It is formed by stamping, so that the terminal has an interfering part in the middle in addition to the joint part at the rear end and the butt part at the front end; when assembling, insert the several terminals one by one into the terminal groove of the insulating body, and use the interference The part interferes with the terminal groove and is positioned.

However, although this manufacturing technology can be used for general plug connectors (USB), it is difficult to apply to miniaturized plug connectors (Micro USB). The reason is that the pitch between the terminals of the Micro USB plug connector is very small, and it is impossible to insert a single terminal, and the contact surface of the stamped terminal is equivalent to the thickness of the metal sheet. Terminals are prone to scratches during butt contact, which affects the quality of telecommunication transmission and service life. Moreover, the movement flexibility of stamping terminals is poor, and the plugging and unplugging interference force will be too large during the docking operation, and may even damage the docking terminals, resulting in defects in the quality of telecommunication transmission. Therefore, such micro plug connectors cannot be manufactured in the existing way.

The existing one-piece molding technology (Insert Molding) can solve the above-mentioned shortcomings of terminal stamping assembly, but it is not the best solution because of its high cost, limited manufacturing process and inflexibility. Moreover, no matter what conventional method is used, after the terminal and the cable are assembled, the joint portion of the terminal and the connection of the cable are likely to be loosened due to plugging and unplugging during use, which may easily lead to poor communication.

Contents of the invention

The purpose of this utility model is to provide a universal bus plug connector, which uses the insulating body to clamp the terminals up and down, so that the manufacture and assembly of the micro plug connector (Micro USB) is greatly simplified and convenient, thereby improving the manufacturing efficiency. Economic benefits, and better quality of telecommunication transmission.

Another purpose of the utility model universal bus plug connector is that the insulating body can clamp up and down, and at the same time, it can press the cable on the side of the terminal joint, so as to ensure that the plug connector is not inserted during the process of plugging and unplugging. It will affect the connection between the joint and the cable.

To achieve the above purpose, the utility model universal bus plug connector includes: an insulating body, including a base and a cover, wherein the base is provided with several terminal slots, and the cover is fastened to the base; several terminals, It is integrally placed on the cover seat, including a joint part and a butt joint part; the metal shielding shell covers the outer side of the insulating body.

Therefore, the universal bus plug connector of the present invention utilizes the insulating body to be provided with a separate base and cover, so that the several terminals can be easily arranged on the base at one time, and then the cover can be consolidated , so as to complete the assembly of the several terminals and the insulating body, which makes the manufacture of the micro USB plug connector (Micro USB) with a small pitch easy, and uses the pressure plate to fasten the junction of the terminals, which can prevent the several terminals from Loose or detachment, and simplify the stamping of the terminal (eliminate the production of the interference part used for positioning of the general terminal); and the action concave part at the front end of the terminal groove can make the elastic force of the curved end of the terminal exert its characteristics, so that The universal bus plug connector of the utility model can facilitate the operation of docking and electrical connection, thereby actively meeting the requirements of manufacturing economic benefits and improving its product quality and market competitiveness.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present utility model.

Description of drawings

The technical solution and other beneficial effects of the utility model will be apparent through the detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings.

In the attached picture,

Fig. 1 is an exploded perspective view of the utility model;

Fig. 1A is an assembly perspective view of the base, cover and terminal of the utility model;

Fig. 2 is a combined perspective view of the utility model;

Fig. 3 is a schematic cross-sectional view of Fig. 2 along section line 3-3;

Fig. 4 is the front view after the combination of the utility model;

Fig. 5 is a schematic cross-sectional view along line 5-5 of Fig. 4;

Fig. 6 and Fig. 7 are schematic diagrams of assembly of the terminal of the present invention.

Detailed ways

Referring to Fig. 1, the utility model universal bus plug connector includes: an insulating body 10, several terminals 30 and a metal shielding shell 50; the insulating body 10 includes a base 11 and a cover 21, and the base 11 includes a rear The end seat 13 with a stepped end and the docking seat 14 extending forward from the end seat 13 at the front end, the central part of the end seat 13 is provided with several first terminal grooves 131 that are relatively concave and correspondingly connected to the first terminal grooves 131 A plurality of second terminal slots 132 extend forward and protrude, and two sides of the end base 13 are respectively provided with a positioning hole 133 and a positioning slot 134 . In addition, steps 135 are provided at appropriate positions on both sides of the rear end of the end seat 13 . The central part of the docking seat 14 is provided with several docking terminal slots 141 corresponding to the second terminal slot 132, and the several first and second terminal slots 131, 132 and the docking terminal slots 141 are used to form the base 11. Several terminal slots are provided, and the front end of the docking terminal slot 141 is provided with an action recess 143 (as shown in FIG. 5 ) adjacent to the docking end 142 . In addition, two sides of the docking base 14 are respectively provided with a long concave groove 144 . The cover base 21 is in an L-shaped structure corresponding to the end base 13 and the docking base 14, and includes a rear end cover 22 and a cover plate 23 perpendicular to the end cover 22, which integrally covers the docking of the terminal 30 described later. Part of the part 32, the butt part 32 can be cantilevered. The end cover 22 can press against the cables connected to the terminals 30 to ensure that the connection between the terminals and the cables will not be affected during the plugging and unplugging process of the plug connector. In addition, the end cover 22 is provided with a locking block 221 corresponding to the locking step 135 of the base 11 to generate a locking effect. The two sides of the cover plate 23 are provided with a positioning post 231 corresponding to the positioning hole 133 and a positioning hook 232 corresponding to the positioning slot 134, and a pressing plate 233 is formed between the positioning posts 231, and the pressing plate 233 corresponds to the first Two terminal grooves 132 , and a plurality of pressure plate terminal grooves 234 corresponding to the second terminal grooves 132 are disposed under the pressing plate 233 . Referring to FIG. 1A , after the terminal 30 is assembled on the base 11 , the cover 21 is assembled and clamped with the base 11 , and then the terminal 30 is assembled and fixed together.

Referring to Fig. 1, there are five terminals 30 integrated into the cover 21. Each terminal includes a joint part 31 and a butt joint part 32. The joint part 31 is used to weld the lead unit at its rear end. (Not shown in the figure) For example: cables, the bending portions 31B, 31D are arranged in the plurality of joint portions 31 at intervals. The front end of the docking portion 32 is provided with a curved arc end 321 for convenient docking contact, and the curved arc end 321 is just above the action concave portion 143 (as shown in FIG. 5 ).

The metal shielding shell 50 includes a base shell 51 and a cover shell 52 . The base shell 51 includes two side plates 511 , a front plate 512 and a connecting plate 513 extending from the rear end. The side plate 511 has a locking hole 514 . In addition, an accommodating space 517 is formed between the side plate 511 and the front end plate 512 for accommodating the insulating body 10, and makes the front end plate 512 resist the front end of the insulating body 10, and the rear end of the connecting plate 513 is provided There is a clamp ring piece 515. The casing 52 includes a casing cover 521 relatively located above the base casing 51 and a casing cover 522 extending forward from the casing cover 521. The casing cover 521 has two side plates 523 extending vertically, and the side plates 523 are set There is a card 524 corresponding to the card hole 514, and the cover 521 extends backward with a connecting plate 525 and a ring plate 526; The surface is provided with a docking protrusion 528 .

Referring to Fig. 2-3, when the universal bus plug connector of the present invention is assembled, the several terminals 30 (connectable sheets) are placed in a row on several terminal slots of the base 11 (the first and the second Two terminal slots 131, 132 and docking terminal slot 141), then cover the cover base 21 in combination, and make the block 221 of the end cover 22 abut against the step 135 of the base 11, the positioning of the cover plate 23 The post 231 is inserted into the positioning hole 133 of the base 11 and the positioning post 231 of the cover plate 23 is fastened to the positioning slot 134 of the base 11, and further makes the pressing plate 233 press against the second terminal The joint portion 31 of the terminal 30 on the groove 132 is used to fasten and position the several terminals 30; then the insulating body 10 after the combined terminal 30 is placed in the accommodation space 517 of the base shell 51, so that the base The shell 51 and the housing 52 are combined into a universal bus plug connector.

It is worth mentioning that, since the terminals 30 are punched and then bent from sheet metal, the contact surface of the curved end 321 of the terminal 30 is equivalent to the surface of the sheet metal, so that the arc of the terminal 30 The end 321 is not easy to be scratched during docking, and has better elasticity, which can make the plugging and pulling effect smoother during the docking operation, and has better telecommunications conducting effect. As shown in Figure 4 and Figure 5, the curved end 321 of the terminal 30 of the present invention has better elasticity, therefore, the action recess 143 below the curved end 321 can make the elastic operation of the curved end 321 more seamless. Obstacle, smooth.

Figure 6 and Figure 7 are schematic diagrams of the assembly and processing of the several terminals 30 of the present invention. 31 has a straight shape without forming bent portions 31B, 31D. As shown in FIG. 7 , after the plurality of terminals 30 are covered and fixed by the L-shaped cover base 21 , the bending of the bending portions 31B, 31D is further processed.

Therefore, the universal bus plug connector of the present invention utilizes the insulating body to be provided with a separate base and cover, so that the several terminals can be easily arranged on the base at one time, and then the cover can be consolidated , so as to complete the assembly of the several terminals and the insulating body, making it easy to manufacture the micro USB plug connector (Micro USB) with a small pitch, and using the pressing plate to fasten and press the joint of the terminal, which can prevent the several Loose or detachment of the terminal, and simplify the punching of the terminal (eliminate the production of the interference part used for positioning of the general terminal); and the action concave part at the front end of the terminal groove can make the elastic force of the curved end of the terminal play its characteristics , so that the universal bus plug connector of the utility model can facilitate the docking operation and electrical connection, and then actively meet the requirements of manufacturing economic benefits and improve its product quality and market competitiveness.

As mentioned above, for those of ordinary skill in the art, various other corresponding changes and deformations can be made according to the technical scheme and technical concept of the present utility model, and all these changes and deformations should belong to the claims of the present utility model scope of protection.

Claims (11)

1. A kind of universal bus plug connector, especially refers to the improvement of miniature universal bus plug connector, is characterized in that, comprises: The insulating body includes a base and a cover that can be inserted into one body, wherein the cover is fixed on one side of the base by inserting; Several terminals are integrally placed on the cover, and each terminal includes a joint part and a butt joint part; The metal shielding shell covers the outer side of the insulating body. 2. The universal bus plug connector according to claim 1, wherein the base includes a step-shaped end seat at the rear end and a docking seat whose front end extends forward from the end seat, and the central part of the end seat is set There are several first terminal grooves that are relatively concave and correspondingly continuous with the first terminal grooves and extend forward and are relatively raised second terminal grooves. 3. The universal bus plug connector according to claim 2, wherein the cover seat is in an L-shaped structure corresponding to a part of the end seat and the docking seat, and integrally covers a part of the butt joint portion of the terminal, Make the docking portion cantilevered. 4. The universal bus plug connector as claimed in claim 1, wherein positioning holes and positioning slots are provided on both sides of the base, and positioning posts corresponding to the positioning holes and positioning slots are respectively provided on the cover base and positioning hook. 5. The universal bus plug connector as claimed in claim 1, wherein a step is provided at the rear end of the base, and a block corresponding to the step is provided on the cover. 6 . The universal bus plug connector as claimed in claim 1 , wherein an action concave portion is provided at the front end of the terminal slot adjacent to the mating end. 6 . 7. The universal bus plug connector as claimed in claim 2, wherein the two sides of the docking seat are provided with concave and long grooves. 8. The universal bus plug connector as claimed in claim 1, wherein the cover is provided with a pressing plate corresponding to the terminal groove. 9. The universal bus plug connector as claimed in claim 8, wherein a plurality of pressing plate terminal slots are arranged under the pressing plate. 10. The universal bus plug connector as claimed in claim 1, wherein the plurality of terminals are punched out of sheet metal and then bent at intervals at the joining portion to have bending portions, and the front end of the butting portion A curved end is provided, and the contact surface of the curved end is equivalent to the surface of the sheet metal. 11. The universal bus plug connector according to claim 1, wherein the metal shielding shell comprises a base shell and a cover shell, and the base shell and the cover shell are respectively provided with card holes and card slots that can be locked with each other. .

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