CN2678164Y - Low Profile USB Plug Connector with System Common Ground - Google Patents

Abstract

A thin USB plug connector with system common ground is butt jointed with a USB socket, the socket is provided with an outer frame which is concavely provided with a plurality of elastic sheets, a tongue piece arranged in the outer frame and four conductive spring pieces arranged below the tongue piece; the thin USB plug connector is inserted in the space below the tongue piece of the USB socket. The thin USB plug connector comprises a circuit substrate; four conductive pole pieces are arranged on the top surface of the circuit substrate and are abutted with the corresponding conductive reeds of the USB socket; and the grounding polar plate is arranged on the bottom surface of the circuit substrate and is abutted against the elastic sheet of the USB socket so as to achieve system common ground with the USB socket.

Description

Low Profile USB Plug Connector with System Common Ground

technical field

The utility model relates to a thin USB plug connector with a system common ground, in particular to a USB (A-Type) plug connector with a system common ground after thinning design, and conforms to the specifications of the original USB.

Background technique

Universal Serial Bus (USB, Universal Serial Bus) is a very common connection interface for computers at present. USB is an external bus that supports plug-and-play installation. Using USB, the user can connect and disconnect the connection between the computer and the device without shutting down or restarting the computer. A single USB connection port can be used to connect up to 127 peripheral devices, including speakers, telephones, CD-ROM disk drives, joysticks, tape drives, keyboards, scanners, and cameras, among others. The USB connection port is usually located on the back of the computer next to the serial or parallel connection port.

Please refer to FIG. 1 , which is a perspective view of a common USB (A-Type) socket (female) and plug (male) in the market today. The current general USB (A-Type) socket 70 and plug 90 comply with the physical dimensions and positions of the USB A-Type socket and plug to achieve the purpose of electrical connection.

The USB socket 70 is usually installed on the computer system end and soldered on a circuit board 80 . The USB socket 70 has an outer frame 72 which is formed by stamping a metal plate and grounded to the chassis of the computer system, and a tongue 76 is disposed inside the outer frame 72 . Four sidewalls of the outer frame 72 are integrally formed to inwardly depress the elastic pieces 74 . The tongue piece 76 is an electrical conductive embedded plate, and four conductive reeds 78 are arranged on the bottom surface of the tongue piece 76 .

The USB plug 90 is usually installed on the client side. The USB plug 90 has an outer frame 92 formed by stamping a metal plate, and a tongue 96 is disposed inside the outer frame 92 . The outer frame 92 is grounded with the computer system chassis through the USB socket 70 to meet the electrical specification requirements of the USB-IF common ground. Two square holes 94 are formed on the upper and lower sides of the USB socket 70 to facilitate contact with the shrapnel 74 of the outer frame 72 of the USB socket 70. contacts and has a clasp function. The tongue 96 in the middle is the electrical conduction embedded plate, and four conductive reeds 98 are arranged on the top of the tongue 96, which just fit with the tongue 76 of the USB socket 70 to conduct to the client.

The USB socket 70 and the plug 90 of the prior art have a certain directionality of mating, and if they are reversed, they cannot be mated.

The peripheral dimensions of the USB socket 70 and plug 90 in the prior art are limited by their outer frames, and they are often pushed against the plugs on the parallel USB sockets when plugged in, which is inconvenient to use. The key here is that the bezel becomes a major obstacle to thinning the design.

Therefore, it can be known from the above that the above-mentioned existing USB plug connector obviously has inconvenience and defects in actual use, and needs to be improved.

Contents of the invention

The main purpose of this utility model is to provide a thin USB plug connector with system common ground, which has a thinner appearance design and conforms to USB specifications, and is especially designed by abandoning the fitting method of the metal outer frame of the original plug. There is a hidden grounding part to achieve the common ground of the system, which has the advantages of light weight and easy portability.

In order to achieve the above-mentioned purpose, the utility model provides a thin USB plug connector with system common ground, which is connected with a USB socket. The tongue, and four conductive reeds located under the tongue; the thin USB plug connector is inserted in the space below the tongue of the USB socket, including a circuit board, forming a plurality of circuits on its top surface and its bottom surface; four conductive electrodes, which are arranged on the circuit on the top surface of the circuit substrate, and abut against the corresponding conductive reed of the USB socket; and grounding electrodes, which are arranged on the circuit substrate For the circuit on the bottom surface, the grounding plate abuts against the elastic piece of the USB socket to achieve a system common ground with the USB socket.

The preferred embodiments of the utility model are described in detail below with reference to the drawings, but these descriptions are only used to illustrate the utility model, rather than to limit the scope of rights of the utility model.

Description of drawings

FIG. 1 is a perspective view of a conventional USB (A-Type) socket and plug.

FIG. 2 is a cross-sectional exploded view of the thin USB plug connector with system common ground of the present invention.

FIG. 3A is a perspective view of the application of the thin USB plug connector with system common ground in the portable access device of the present invention.

FIG. 3B is a perspective view from another angle of the application of the thin USB plug connector with system common ground in the portable access device of the present invention.

FIG. 4 is a top view of the application of the thin USB plug connector with system common ground in the portable access device of the present invention.

Fig. 5 is a cross-sectional view along line 5-5 in Fig. 4 .

FIG. 6 is a side view of a thin USB plug connector with system common ground applied to peripheral devices of a computer according to the present invention.

FIG. 7 is a side view of a thin USB plug connector with system common ground applied to a cable connection of the present invention.

Wherein, the reference signs are explained as follows:

USB socket 70

Frame 72 Shrapnel 74

Tongue 76 Conductive reed 78

Insert space 79

circuit board 80

USB plug 90

Frame 92 Square Hole 94

Tongue 96 Conductive reed 98

Portable Access Device 1

Low Profile USB Plug Connector 2

Circuit board 10

Top surface 11 Conductive electrode 12

Bottom 13 Grounding plate 14

Insulation housing 20

Upper housing 22 Lower housing 24

Foil Groove 222 Ground Groove 242

convex wall 224, 226

cable 3'

Computer Peripherals4

Electrical Connector 4'

Detailed ways

Please refer to FIG. 2 , which is a cross-sectional exploded view of the thin USB plug connector with system common ground of the present invention. The thin USB plug connector 2 with system common ground of the present invention is docked with the USB socket 70 of the prior art. The USB socket 70 is as previously described (please refer to FIG. 1 ). A conductive reed 78 located below the tongue 76. The tongue 76 and the frame 72 below form an insertion space 79 .

The thin USB plug connector 2 with system common ground is inserted into the insertion space 79 between the tongue 76 of the USB receptacle 70 and the outer frame 72 . The thin USB plug connector 2 includes a left circuit board 10 , four conductive plates 12 , and a ground plate 14 . The circuit substrate 10 has a plurality of circuits (not shown) formed on its top surface 11 and its bottom surface 13 .

The four conductive electrode sheets 12 are made of metal with good electrical conductivity; the conductive electrode sheets 12 are disposed on the top surface 11 of the circuit substrate 10 and connected with the corresponding circuit. The size of the length and width of the conductive electrode 12 can conform to the electrical and physical corresponding position of the conductive reed 78 on the tongue 76 of the original USB socket (female seat), and is connected with the corresponding conductive wire of the USB socket 70. The reed 78 abuts.

The ground plate 14 is formed by punching a metal plate, and has two ends respectively welded to be fixed on the bottom surface 13 of the circuit substrate 10 and connected to a corresponding ground circuit. The grounding plate 14 abuts against the elastic plate 74 below the outer frame 72 of the USB socket 70 , whereby the thin USB plug connector 2 of the present invention and the USB socket 70 achieve a system common ground.

In the present invention, the circuit substrate 10 can further wrap an insulating shell 20 on its periphery. In this embodiment, the insulating housing 20 is provided with an upper housing 22 and a lower housing 24, each of which is provided with a foil groove 222 and a grounding groove 242 corresponding to the conductive electrode piece 12 and the grounding plate 14. for its exposure. The upper casing 22 is provided with four foil grooves 222 , and the convex walls 224 , 226 are disposed between the foil grooves 222 and on both side edges. The protruding walls 226 of the two side edges are embedded in the gap between the tongue 76 of the USB socket 70 and the outer frame 72 of the USB socket. The lower housing 24 of the insulating housing 20 is provided with a pair of grounding grooves 242 for the grounding plate 14 to be exposed, and for engaging and electrically connecting the elastic pieces 74 on the outer frame 72 of the USB socket 70 , thereby It also has a fixed effect.

Please refer to FIG. 3A and FIG. 3B , which are three-dimensional views from different angles of the application of the thin USB plug connector with system common ground in the portable access device of the present invention. The thin USB plug connector 2 of the utility model can be applied to various current USB electronic devices, and has the advantage of being lightweight and easy to carry. Especially when it is applied to a portable access device 1 (Flash memory card), a main body 3 extends backward from the thin USB plug connector 2 and is formed on the portable access device 1 . With the thin USB plug connector 2 of the present invention, the USB-type portable access device 1 becomes lighter and lighter, and its plug-in part has the same thickness as the main body 3, so it is convenient to be applied to portable electronic products , such as personal digital assistants, digital cameras, notebook computers, etc. Wherein the circuit design in the main body 3 of the portable access device 1 is not repeated here because it is part of the prior art.

Please refer to FIG. 4 and FIG. 5 for a top view of the utility model applied to a portable access device and assembled in a socket connector, and a cross-sectional view along line 5-5 in FIG. 4 . The utility model achieves the thin design of the USB plug, abandons the metal outer frame 92 of the original plug (male seat) 90, and replaces it with a non-metallic plastic molding to form a shell, which contains the conductive electrode sheet 12 and the system for USB electrical contact. The grounding plate 14 only uses the insertion space 79 below the original USB socket (female seat) 70 to achieve a thin design, which not only conforms to the specifications and functions of the original USB, but also has a hidden grounding part to achieve system commonness. land. The overall height is only about half of that of the prior art, and the width is also reduced. Especially when it is applied to a portable access device, it shows the advantages of being light and handy and easy to carry.

Please continue to refer to FIG. 6 , which is a side view of the thin USB plug connector with system common ground applied to computer peripheral devices of the present invention. The thin USB plug connector 2 with system common ground of the present invention can further have a cable 3' connected to one end of the circuit substrate 10 and electrically connected to the top surface 11 and the bottom surface 13 of the circuit substrate 10. Wherein the cable 3' can be connected to a computer peripheral device 4, such as a mouse or a keyboard; or wherein the cable 3' can be connected to an electrical connector 4 to form an electronic device connection cable (as shown in Figure 7 Show).

What is disclosed above is only a preferred embodiment of the utility model, and cannot limit the scope of rights of the utility model. Therefore, equal changes or modifications made according to the application scope of the utility model are still covered by the utility model. scope.

Claims (9)

1. A thin universal serial bus plug connector with system common ground, which is connected with a universal serial bus socket. sheet, and four conductive reeds located under the tongue; the thin universal serial bus plug connector is inserted into the space below the tongue of the universal serial bus socket, and is characterized in that it includes: A circuit substrate having a plurality of circuits formed on its top surface and its bottom surface; four conductive pads disposed on the circuit on the top surface of the circuit substrate and in contact with the corresponding conductive springs of the USB socket; and The grounding plate is arranged on the circuit on the bottom surface of the circuit substrate. The grounding plate abuts against the spring piece of the USB socket to achieve a system common ground with the USB socket. 2. The thin USB plug connector with system common ground as claimed in claim 1, wherein the circuit board extends to one end and is formed on a portable access device. 3. The thin USB plug connector with system common ground as claimed in claim 1, further comprising a cable connected to one end of the circuit substrate and electrically connected to the top surface and the bottom surface of the circuit. 4. The thin USB plug connector with system common ground as claimed in claim 3, wherein the cable can be connected to a peripheral device of a computer. 5. The thin USB plug connector with system common ground as claimed in claim 3, wherein the cable can be connected to an electrical connector to form an electronic device connection cable. 6. The thin universal serial bus plug connector with system common ground as claimed in claim 1, wherein the ground plate is formed by stamping a metal plate, and has two ends welded to the bottom surface of the circuit substrate respectively . 7. The thin universal serial bus plug connector with system common ground as claimed in claim 1, wherein the circuit board is further covered with an insulating shell on its periphery, and the insulating shell is provided with corresponding The conductive electrode sheet and the groove of the ground electrode plate are used for their exposure. 8. The thin universal serial bus plug connector with system common ground as claimed in claim 7, wherein the insulating housing is provided with a pair of grounding grooves for exposing the grounding plate and for the universal serial bus The shrapnel on the outer frame of the row bus socket is snapped inside. 9. The thin-type universal serial bus plug connector with system common ground as claimed in claim 7, characterized in that, the side edges on both sides of the insulating shell each have a convex wall embedded in the universal serial bus socket The gap between the tongue and the outer frame of the USB socket.

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