CN201594604U - usb connector - Google Patents

Abstract

The utility model discloses a USB connector, this USB connector are suitable for the welding and include on the PCB board: the conductive terminal comprises a plurality of conductive terminals, an insulating body for accommodating and fixing the conductive terminals and a metal shell for coating the insulating body and the conductive terminals, wherein an opening is formed at the front end of the metal shell, first welding parts which are bent outwards and extend horizontally are arranged on two opposite side surfaces of the metal shell so as to be installed and welded with the surface of a PCB, and second welding parts which extend downwards are also arranged on two opposite side surfaces of the metal shell. The utility model discloses USB connector when welding on the PCB board, can strengthen the firm in connection nature between USB connector and the PCB board from the combination effort of copper foil piece on a plurality of direction increases and the PCB board, has prolonged USB connector's life.

Description

usb connector

technical field

The utility model relates to an electronic device connector, in particular to a USB connector.

Background technique

With the continuous development of electronic products, the connection between various electronic products and their peripheral devices is becoming more and more frequent, and the connection between electronic products and their peripheral devices is a very common way of connection , so the frequency of use of the USB connector also increases. USB connectors are so widely used in the electronic field, and users have higher and higher requirements for their quality. In order to meet users' requirements for the quality of USB connectors, various manufacturers have improved the quality of USB connectors from all aspects to make The connection with the external connector is stronger and more reliable.

Figures 1 and 2 illustrate the structural components of a USB connector in the prior art. The USB connector includes: a metal shell 100 , a plurality of conductive terminals 120 and an insulating body 130 . The metal casing 100 is surrounded by opposite upper surfaces 140 , lower surfaces 150 and opposite side surfaces 160 , and an opening 141 is formed at a front end of the metal casing 100 . The two side surfaces 160 are respectively bent outwards and extended horizontally to form a welding part 161, and the welding part 161 is welded to the welding contact 101 on the PCB board 110, so that the entire metal shell 100 is fixed on the PCB board 110 on. The plurality of conductive terminals 120 are clamped on the insulating body 130, and the insulating body 130 is provided with a plurality of grooves (not shown) corresponding to the conductive terminals 120, and the conductive terminals 120 are all fixedly installed. In the groove; the other surface of the insulating body 130 opposite to the groove is recessed to form a plurality of card slots 131, and correspondingly, the upper surface 140 of the metal shell 100 protrudes inward to form a plurality of The tab 142 , during installation, the tab 142 is snapped into the slot 131 , so that the conductive terminal 120 and the insulating body 130 are fixed together in the metal housing 100 .

During use, when the external connector is inserted into the metal housing 100 through the opening 141, if the operator exerts too much force, the copper foil on the soldering contact 101 will be subject to a large horizontal force. If the force is too high, it is easy to cause the copper foil to loosen, and the copper foil may fall off from the PCB board 110 after so many times of use; in addition, if the operator accidentally pulls the USB connector upwards, the The welding part 161 will be subject to a relatively large upward traction force, which may tear the copper foil from the PCB board 110, thereby making the connection between the welding part 161 and the PCB board 110 loose . If the above two situations are used for a long time, the connection between the welding part 161 and the PCB board will be weak, which will easily lead to poor contact between the welding part 161 and the PCB board 110, so that the USB connector cannot work normally. It also affects the service life of the USB connector.

Utility model content

The purpose of this utility model is to provide a USB connector for the above-mentioned deficiencies in the prior art. The USB connector can increase the combined force with the PCB board from multiple directions, so as to strengthen the connection between the USB connector and the PCB. The firmness of the connection between the boards prolongs the service life of the USB connector.

In order to achieve the above purpose, the utility model provides a USB connector, which is suitable for welding on a PCB board, and includes: a plurality of conductive terminals, an insulating body for accommodating and fixing the plurality of conductive terminals, and covering the insulating body. The body and the metal shell of the conductive terminal, the front end of the metal shell forms an opening, wherein, the opposite two sides of the metal shell are provided with a first welding portion that is bent outward and extends horizontally to connect with the The PCB board is surface-mounted and welded, and the opposite side surfaces of the metal shell are also provided with a second welding portion extending downward.

As mentioned above, when the USB connector of the present invention is welded to the PCB board, since the two sides are respectively bent outwards and extended horizontally to form the second welding part, the gap between the USB connector and the PCB board Two additional welding places are added, so that the connection between the USB connector and the PCB board is more firm; and the second welding part can be welded on the soldering contact on the lower surface of the PCB board, so that it can withstand Greater force perpendicular to the direction of the PCB board, so that when the USB connector is accidentally subjected to an upward force due to careless operation, it can prevent the copper foil from being torn from the PCB board, thus enhancing the USB connector. The firmness of the connection between the connector and the PCB board is improved, and the service life of the USB connector is prolonged.

Description of drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a USB connector in the prior art.

FIG. 2 is an exploded perspective view of the USB connector shown in FIG. 1 .

Fig. 3 is a three-dimensional structural diagram of an embodiment of the USB connector of the present invention.

FIG. 4 is an exploded view of the USB connector shown in FIG. 3 .

FIG. 5 is another perspective exploded view of the USB connector shown in FIG. 3 .

Each reference sign of the utility model is explained as follows:

Metal shell 200 PCB board 210

Solder contacts 201, 202, 203

The upper surface of the PCB board 211 The lower surface of the PCB board 212

Conductive terminal 220 Fixed part 221

Insulation body 230 Terminal board 231

groove 232 through hole 233

Card slot 234 Upper surface 240

Opening 241 Tab 242

The first guiding part 243 The third welding part 244

Lower surface 250 Second guide part 251

Side 260 The first welding part 261

Second welding part 262 Convex rib 262a

The third guide 263

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 3-5, the USB connector of the utility model is suitable for being fixedly welded on the PCB board 210, and the USB connector includes: a metal shell 200, a plurality of conductive terminals 220 and an insulating body 230; It is disposed on the insulating body 230 , and the insulating body 230 is fixedly installed in the metal shell 200 .

The metal casing 200 is surrounded by opposite upper surfaces 240 , lower surfaces 250 and opposite side surfaces 260 , and an opening 241 is formed at a front end of the metal casing 200 . The two sides 260 are respectively bent outwards and extended horizontally to form two first welding parts 261, and the first welding parts 261 are welded to the welding contacts 201 on the upper surface 211 of the PCB board; in addition, the two sides 260 are respectively A second welding portion 262 is formed extending downward adjacent to the lower surface 250, and the second welding portion 262 on each side 260 is located between the two first welding portions 261; the second welding portion 260 The outer surface is provided with a convex rib 262a, and the convex rib 262a is close to the welding contact 203 between the upper surface 211 of the PCB board and the lower surface 212 of the PCB board, when the second welding part 262 is connected to the PCB board When the welding contact 202 of the lower surface 212 is welded, the convex rib 262 a is welded on the welding contact 203 of the PCB 210 . The rear end of the upper surface 240 is bent and extended backward to form a third welding portion 244 , and the third welding portion 244 is welded to the soldering contact 201 on the upper surface 211 of the PCB. The first welding part 261 , the second welding part 262 and the third welding part 244 are all fixedly welded on the corresponding welding contacts of the PCB board 210 , so that the USB connector is fixedly installed on the PCB board 210 superior. Wherein, the first soldering portion 261 and the third soldering portion 244 are approximately located at half the height of the USB connector, such a design can not only quickly solder the USB connector to the PCB board 210, but also Make the USB connector vertically symmetrical with respect to the PCB board 210 , so that the pressure of the USB connector on the PCB board can be balanced up and down.

In addition, the front ends of the upper surface 240, the lower surface 250, and the two side surfaces 260 are respectively bent and extended outward to form a first guide portion 243, a second guide portion 251, and a third guide portion 263, and the first guide portion 243, The second guide portion 251 and the third guide portion 263 together guide the external connector to be inserted into the metal housing 200 through the opening 241 to realize the electrical connection between the external connector and the conductive terminal 220 of the USB connector.

The insulating body 230 extends horizontally outward to form a terminal board 231 , and the terminal board 231 is provided with a plurality of grooves 232 passing through the terminal board 231 front and back, and the conductive terminals 220 are inserted into the grooves 232 inside; the groove 232 at the end of the terminal plate 231 is provided with a through hole 233 that penetrates the terminal plate 231 up and down, and correspondingly the ends of the plurality of conductive terminals 220 are bent obliquely downward to form a fixing portion 221, The through hole 233 accommodates the fixing portion 221, thereby fixing the conductive terminal 220 in the groove 232; the insulating body 230 is concaved to form three slots on the other surface of the groove 232 234. Correspondingly, the upper surface 240 of the metal shell 200 protrudes inwards to form three tabs 242, and the tabs 242 cooperate with the slots 234 to fix the insulating body 230. inside the metal casing 200 .

The following describes the assembly process of the USB connector of the present invention with reference to FIG. 4 and FIG. 5 . First, insert the conductive terminal 220 into the groove 232 of the terminal board 231, and make the fixing portion 221 at the end of the conductive terminal 220 be accommodated in the through hole 233, so that the conductive terminal 220 It is fixedly installed on the insulating body 230 . Then, the insulating body 230 is inserted into the metal shell 200, and the tab 242 on the upper surface 240 is pressed down, so that the tab 242 presses down and snaps into the snap of the insulating body 230. slot 234 , so that the insulating body 230 is fixed in the metal shell 200 . Finally, the metal shell 200 is welded on the PCB board 210, specifically: first place the metal shell 200 on the PCB board 210 and make each welding part close to each corresponding welding contact; Then respectively weld the first soldering portion 261 and the third soldering portion 244 on the soldering contact 201 on the upper surface 211 of the PCB; finally weld the second soldering portion 262 on the lower surface 212 of the PCB At the same time, the convex rib 262 a on the second welding portion 262 is also welded on the soldering contact 203 of the PCB board 210 . So far, the entire USB connector is assembled, and the USB connector can be used normally, that is, the external connector can be passed through the USB connector under the joint guidance of the first guide part 243, the second guide part 251 and the third guide part 263. The opening 241 is inserted into the metal shell 200 of the USB connector, so as to realize the connection between the external connector and the USB connector.

As mentioned above, the convex rib 262a of the second welding portion 262 of the USB connector of the present invention is welded on the welding contact 203 of the PCB 210 (perpendicular to the PCB 210, see FIG. 4 ), and The second welding part 262 is welded on the welding contact 202 on the lower surface 212 of the PCB, that is, the second welding part 262 and the convex rib 262a are connected to the PCB 210 in both vertical and horizontal directions by welding. Fixed connection, so when the external connector is inserted into the metal housing 200 of the USB connector through the opening 241, the distance between the copper foil of the soldering contact relative to the PCB board 210 can be reduced in the horizontal direction and the vertical direction at the same time. force, thereby greatly reducing the possibility that the soldering contact copper foil will fall off from the PCB board 210 due to looseness, and enhance the firmness of the connection between the USB connector and the PCB board 210, thereby The service life of the USB connector is extended.

Claims (6)

1. USB connector, be suitable for being welded on the pcb board, comprise: plurality of conductive terminals, accommodate the insulating body of fixing described plurality of conductive terminals and coat the metal shell of described insulating body and described conducting terminal, described metal shell front end forms opening, it is characterized in that: the relative two sides of described metal shell are provided with outside bending and horizontally extending first weld part, to weld with described pcb board mounted on surface, the relative two sides of described metal shell also are provided with second weld part of downward extension.

2. USB connector as claimed in claim 1 is characterized in that: described first weld part roughly is positioned at the position of half height of described USB connector.

3. USB connector as claimed in claim 1, it is characterized in that: described first weld part is equipped with two in the both sides of metal shell, described second weld part is equipped with one in the both sides of metal shell, and each described second welding position is between two described first weld parts of the same side.

4. USB connector as claimed in claim 1 is characterized in that: the described second weld part lateral surface is provided with fin.

5. USB connector as claimed in claim 1 is characterized in that: the rear end of described metal shell is provided with bending and horizontally extending the 3rd weld part backward.

6. USB connector as claimed in claim 5 is characterized in that: described the 3rd weld part roughly is positioned at the position of half height of described USB connector.

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