CN200994033Y - Improved plug connector - Google Patents

Abstract

The utility model relates to a plug connector improvement especially indicates the improvement of miniature Universal Bus plug connector (Micro Universal series Bus; Micro USB), and this plug connector includes: 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, including joint part and butt joint part, set in several terminal slots of the base and fixed by the cover seat; 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-plug connector (Micro USB) very simple and convenient, thereby improving the manufacturing economic benefit, having better telecommunication transmission quality, and ensuring that the connection part of the terminal and the cable wire can not be influenced in the plugging and unplugging process of the plug connector.

Description

Improved 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; Micro USB), which has the advantages of convenient assembly and manufacturing, good docking performance and stable electrical connection. .

Background technique

Electrical connectors are the main transfer components used for telecommunication transmission in various electronic products. Due to the continuous improvement of electronic technology, electronic products tend to be thinner and shorter. 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 structure of the miniature universal serial bus plug connector (Micro USB) related to the present invention includes: an insulating body, several terminals and a metal shielding shell, wherein the several terminals are punched according to the structure of the terminal with a metal sheet Formed so that the terminal has a middle interference part in addition to the joint part at the rear end and the butt joint part at the front end; when assembling, insert the several terminals one by one into the terminal slot 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 end surface of the metal sheet. Terminals are prone to scratches during butt contact, which will affect the quality of telecommunication transmission and service life. Moreover, the movement flexibility of the stamping terminal is poor, and the plugging and unplugging interference force will be too large for the docking operation, and even the docking terminal will be damaged, resulting in defects in the quality of telecommunication transmission. Therefore, such micro plug connectors cannot be manufactured in the existing way.

Although the existing integrated molding technology (Insert Molding) can solve the above-mentioned shortcomings of terminal stamping assembly, it is not the best solution because of its high cost and limited manufacturing process and inflexibility. Moreover, no matter which method is used, after the terminal and the cable are assembled, the connecting part 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 telecommunications contact.

Contents of the invention

The purpose of this utility model is to provide an improved plug connector, which uses the upper and lower clamping methods of the insulating body to fix the terminals so that the manufacture and assembly of the micro plug connector (Micro USB) is greatly simplified and convenient, thereby improving its manufacturing efficiency. Economic benefits, and better quality of telecommunication transmission.

Another purpose of the improvement of the plug connector of the utility model 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 plugged in during the process of plugging and unplugging. It will affect the connection between the joint and the cable.

In order to achieve the above purpose, the improvement of the plug connector of the present invention includes: an insulating body, a base and a cover, wherein the base is provided with several terminal grooves, and the cover is fastened to the base; several terminals are provided It is located in several terminal grooves of the base and is fastened and positioned by the cover seat, and includes a joint part and a butt joint part; a metal shielding shell covers the outside of the insulating body.

Therefore, the improvement of the 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 simply and once arranged on the base, and then the cover is consolidated. In this way, the assembly of the several terminals and the insulating body is completed, making it easy to manufacture the improved plug connector (Micro USB) with a small pitch, and the joint portion of the terminal is pressed against the fastening of the pressure plate, which can prevent the loosening of the several terminals or detachment, and the stamping of the terminal can be simplified (the production of the interference part for positioning of the general terminal is omitted); 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, thereby The improvement of the plug connector of the utility model can facilitate the docking operation and electrical connection, thereby meeting the requirements of manufacturing economic benefits and improving product quality and market competitiveness.

For further elaborating the technical means and effects that the utility model takes to achieve the intended purpose, please refer to the following detailed description and accompanying drawings of the utility model. It is believed that the purpose, features and characteristics of the utility model should be able to be obtained in-depth and For specific understanding, however, the accompanying drawings are only for reference and description, and are not intended to limit the present utility model.

Description of drawings

The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings.

In the attached picture,

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

Figure 1A is a perspective view of the base, cover and terminal assembly of the utility model;

Fig. 2 is the combination top view schematic diagram of the present utility model;

Fig. 3 is the front view after the combination of the utility model;

Fig. 4 is a schematic cross-sectional view of Fig. 2 along section line 3-3;

Fig. 5 is a schematic cross-sectional view along line 5-5 of Fig. 3;

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

Detailed ways

Referring to Fig. 1, the utility model 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, wherein the base 11 includes: a rear end The step-shaped end seat 13 and the docking seat 14 extending forward from the end seat 13, the central part of the end seat 13 is provided with a plurality of concave first terminal slots 131 and correspondingly connected to the first terminal slots 131. A plurality of second terminal slots 132 extend forward and protrude, and a positioning hole 133 and a positioning slot 134 are respectively provided on both sides of the end base 13 . 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 an end cover 22 at the rear end and a cover plate 23 perpendicular to the end cover 22. The end cover 22 can be pressed against the terminal. 30 connected cables to ensure that the plug connector will not affect the connection between the terminal and the cable during the plugging and unplugging process. In addition, the end cover 22 is provided with a locking block 221 corresponding to the locking step 135 of the base 11 to play a role of locking. The two sides of the cover plate 23 are provided with a positioning column 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 columns 231, which corresponds to the second terminal slot. 132 , and a plurality of pressing plate terminal slots 234 corresponding to the second terminal slots 132 are provided 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, the number of terminals 30 is five, and each terminal includes a joint part 31 and a butt joint part 32, and the joint part 31 is used for welding to a lead unit (not shown) at its rear end such as a cable, The bent portions 31B, 31D are arranged at intervals among the several joint portions 31 . 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 making 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 and Fig. 4, when the utility model plug connector is improved and combined, the several terminals 30 (connectable sheets) are placed in several terminal slots (first and second) of the base 11 in a row. Terminal slots 131, 132 and docking terminal slots 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 the pressing plate 233 is further pressed against the second terminal The joint part 31 of the terminal 30 on the slot 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 accommodating space 517 of the base shell 51, and the base shell is combined 51 and housing 52 make it an improved 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 Fig. 3 and Fig. 5, the curved end 321 of the terminal 30 of the present invention has a better elastic effect, therefore, the action recess 143 below the curved end 321 can make the elastic operation of the curved end 321 more effective. For unhindered and smooth.

Figures 6 and 7 are schematic diagrams of the assembly and processing of several terminals 30 of the present invention. As shown in Figure 6, the rows of terminals 30 are placed behind the several terminal grooves of the base 11, and the joint portion 31 of each terminal It is straight and has no 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 improvement of the 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 simply and once arranged on the base, and then the cover is consolidated. Thus, the assembly of the several terminals and the insulating body is completed, making it easy to manufacture the improved plug connector (Micro USB) with a small pitch, and using the fastening of the pressing plate to press against the junction of the terminals can prevent the several terminals from being disconnected. Loose or detached, and the punching of the terminal can be simplified (the production of the interference part for positioning of the general terminal is omitted); 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 improvement of the plug connector of the present invention can facilitate the docking operation and electrical connection, thereby meeting the requirements of manufacturing economic benefits and improving product quality and market competitiveness.

The above are only preferred embodiments of the utility model, and all modifications and changes made according to the utility model shall belong to the protection scope of the claims of the utility model.

Claims (10)

1, a kind of pin connector improvement especially refers to the improvement of micro universal bus plug connector, it is characterized in that, comprising:

Insulating body comprises the pedestal and the cage of inlay card one mutually, and wherein this cage inlay card is fixed in a side of this pedestal;

Several terminals is mounted between this pedestal and the cage, and by this pedestal and cage clamping location, each butt comprises junction surface and docking section;

The metal shielding casing is coated on the outside of this insulating body.

2, pin connector improvement as claimed in claim 1, it is characterized in that, this pedestal comprises: the rear end be the end seat of scalariform and front end by this end seat extend forward to joint chair, this end seat central part is provided with several the first terminal grooves of depression and several second terminal grooves that corresponding this first terminal groove that continues extends and be more protruding liter forward, and this cage is holding seat and this L shaped structure to the part of joint chair in addition.

3, pin connector as claimed in claim 1 improvement is characterized in that these pedestal both sides are provided with location hole and locating groove, and this cage is provided with respectively should location hole and the reference column and the location trip of this locating groove.

4, pin connector improvement as claimed in claim 1 is characterized in that this position, pedestal rear end is provided with the card rank, and this cage is provided with blocking the fixture block on rank.

5, pin connector improvement as claimed in claim 1 is characterized in that, contiguous this place, butt end of this terminal groove front end is provided with the action recess.

6, pin connector improvement as claimed in claim 2 is characterized in that this is provided with recessed elongated slot to the joint chair both sides.

7, pin connector as claimed in claim 1 improvement is characterized in that, this cage is provided with pressing plate that should terminal groove.

8, pin connector improvement as claimed in claim 7 is characterized in that, this pressing plate below is provided with several pressing plate terminal grooves.

9, pin connector improvement as claimed in claim 1, it is characterized in that, this several terminals is to rush with sheet metal to have kink in this junction surface with mode bending separately again, and this docking section front end is provided with the curved arc end, and the contact-making surface of this curved arc end is equivalent to the surface of this sheet metal.

10, pin connector improvement as claimed in claim 1 is characterized in that this metal shielding casing comprises basic shell and case, and this base shell and case are respectively equipped with the hole clipping and the card that can be fastened.

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