KR20060018342A - Usb plug with two sides alternately connectable to a usb port - Google Patents

Abstract

The universal serial bus (USB) includes a grill top frame, a bottom frame, and a circuit board mounted between the top frame and the bottom frame. A plurality of corresponding slots are formed in the upper frame and the bottom frame, and thus ribs are formed on two adjacent slots. The circuit board includes a top side and a bottom side, and USB contacts are formed on both sides to correspond to the slots. Thus, when the USB plug is inserted into the standard USB port, the USB contact formed on one side comes into contact with the conductive pin. On the other side of the USB plug, since the protruding rib contacts the elastic metal tongue inside the USB port, the contact formed on the other side does not come into contact with the metal tongue, so that the occurrence of a short circuit can be avoided.

Universal Serial Bus, Frames, Mounting Plates, Slots, Ribs, Plugs, Pins, Contacts

Description

USB plug with two sides selectively connectable to USB port {USB PLUG WITH TWO SIDES ALTERNATELY CONNECTABLE TO A USB PORT}

1 is an enlarged perspective view of a USB plug according to the present invention;

2 is an exemplary enlarged perspective view showing a circuit layout on another layer of a USB plug according to the present invention.

3 is a perspective view of a USB plug according to the present invention;

4 is a perspective view of another embodiment of the USB plug according to the present invention, in which the USB plug is switched from the state of FIG.

5 is an operational side view showing that the USB plug according to the present invention is inserted into a standard USB port.

6 is an operation diagram showing that a memory card having a USB plug is connected to a USB port.

The present invention relates to a universal serial bus (USB); In particular, the present invention relates to a USB plug which has a contact formed on the bottom and an upper side, so that the USB plug can be electrically inserted into a standard USB port at one or more positions.

Like MP3, personal computer peripherals such as keyboards, mice, printers, scanners, CCD cameras, digital cameras, etc. are becoming increasingly important to people. In the past, conventional parallel or serial ports have met the needs of consumers, but have not been adequate in that so many peripherals are required for daily operation. Thus, the Universal Serial Bus (USB) protocol has been developed as a universal data transfer interface between personal computers and peripherals.

The USB protocol supports useful functions, such as hot plug, as well as plug and play. The utility provided by the USB protocol means that all USB products can be installed and operated easily. Compared with the conventional Ubi 1.1 protocol, the new Ubi 2.0 protocol maintains normal transmission mode (1.5 Mbits / s and 12 Mbits / s) and supports the conventional Ubi 1.1 protocol, but provides high-speed data transfer (480 Mbits per second). to provide.

When using traditional ubiquitous protocols or existing protocols, the same specifications for the USB architecture are used. Since the structure of the USB plug of the present invention is designed to be inserted into the USB port only in one direction, the contacts formed in the USB plug and the USB port can thus contact each other. If the USB plug is not aligned correctly with the USB port, the USB plug cannot be inserted correctly because the plastic platform formed in the USB port blocks the plug.

For some specific USB products, the constraint that the USB plug can only be connected to a port with a particular orientation is very inconvenient. For example, in Fig. 6, the memory card 60 is formed integrally with the USB plug 61 to be connected to the USB port 62 on the panel. However, since the parallel port 63 or other serial port adjacent to the USB port 62 must contact the edge of the memory card 60, the plug 61 will be blocked on the outside of the USB port 62. If contacts are formed at two sides of the USB plug 61, the USB plug 61 can be successfully linked to the port 62 by reorienting the memory card 60 like the USB plug 61. have.

Accordingly, the present invention provides a novel USB plug that solves the above problems.

It is a primary object of the present invention to provide a universal serial bus (USB) with contacts formed on its bottom / top side so that it can be inserted into a USB port at one or more locations. In order to achieve this object, the USB plug is a USB plug having two sides selectively connectable with a USB port, wherein the USB plug is formed into a rectangular body, and the first slot passes along the rectangular body and thus along the first slot. A plurality of second ribs are formed along the second slot by passing through the quadrangle a second frame corresponding to the plurality of first slots of the upper frame. A bottom frame formed and a circuit board mounted between the top frame and the bottom frame; Each said first rib is formed between two adjacent first slots; Each second rib is formed between two adjacent first slots; The circuit board comprises a top side and a bottom side; Near the front end and near the front end of the circuit board, four standard USB contacts are formed that correspond exactly to the first and second slots of the top and bottom frames.

Other objects, features and advantages of the present invention will be more clearly understood by the following detailed description with reference to the accompanying drawings.

In FIG. 1, the USB plug according to the present invention includes a grill type upper frame 10, a bottom frame 20, and a circuit board 30 mounted between the upper frame 10 and the bottom frame 20. do. The upper frame 10 and the bottom frame 20 are made of a non-conductive material such as plastic.

The fence-type upper frame 10 is formed of a rectangular body, and four long and narrow slots 11 penetrate the main body. Thus, several ribs 12 are formed between the slots 11, and each rib 12 is formed between two adjacent slots 11. The upper frame 10 includes small concave dimples formed on the bottom surfaces of two opposing long edges.

The bottom frame 20 has a structure similar to that of the upper frame 10. The bottom frame 20 also includes a rib 22 and four slots 21. In order to complement the dimple 13 of the upper frame 10, a plurality of protruding stubs 13 are formed on the upper surface of the two long opposing edges of the bottom frame 20. The circuit boards 30 are inserted between the frames 10 and 20 and then assembled together. The outer circumference of the frames 10 and 20 may be joined by ultrasonic welding.

The circuit board 30 includes a top side and a bottom side. Four standard USB contacts 31 are formed on the upper side and the bottom side near the front end of the circuit board 30. The plurality of wires 32 are connected to the rear end of the circuit board 30. When the circuit board 30 is inserted into the frames 10, 20, the contact 31 on the top / bottom side accurately corresponds to the slots 11, 21 of the top frame / bottom frame 10, 20.

In FIG. 2, the circuit board 30 is composed of a plurality of circuit layers 41 to 44. The first layer 41 and the fourth layer 44 are for forming the above-described USB contact 31. The second layer 42 is used as the ground plate. The third layer 43 is for providing an operating voltage VCC. It should be appreciated that the blank areas on the first layer 41 and the fourth layer 44 are indicative that no conductive material has been printed. Alternatively, empty areas on the second layer 42 and the third layer 43 indicate that the conductive material has been printed. Thus, most of the second layer 42 forms a ground plate, and most of the third layer can provide an operating voltage.

Two concentric circles formed in the first layer 41 represent non-conductive through holes. The vacant circles shown by dotted lines in the second layer 42 and the third layer 43 mean conductive through holes in electrical contact with the ground plate or the voltage plate. In contrast, the solid circles shown in the second layer 42 and the third layer 43 represent non-conductive through-holes that are not in electrical contact with the ground plate or the voltage plate.

The four USB contacts formed on the first layer 41 and the second layer 44 are respectively referred to as V (operation voltage pin), D1 (first data pin), D2 (second data pin), and G (ground pin). Is shown. The two USB contacts D1 and D2 on the first layer 41 are electrically connected to the conductive through holes a1 a2, respectively. The two conductive through holes a1 and a2 are additionally connected to the two conductive through holes a1 'and a2' of the fourth layer 44 through the second and third layers 42 and 43. . By superimposing the first layer 41 on the fourth layer 44, the circular trajectory (not shown) connecting the through holes a1 and a2 is the through hole a1 'and a2'. It intersects with the circle trajectory connecting.

The ground pin G of the first layer 41 provides two points b1, b2 for electrically connecting to the conductive holes b1 ′, b2 ′ of the second layer 42. The operating voltage pin V of the first layer 41 provides a point c1 for electrically connecting to the conductive hole c1 ′ of the third layer 43.

In the fourth layer 44, the ground pin G provides two points b3, b4 for electrically connecting to the conductive holes b3 ′, b4 ′ of the second layer 42. The voltage pin V of the fourth layer 44 uses two points c2 and c3 to be electrically connected to the conductive holes c2 'and c3' of the third layer 43.

3 and 4, in the plan view or the rear view of the USB plug according to the present invention, the USB contacts 31 are all arranged in the same sequence. As shown in Fig. 3, along the direction from left to right (shown by arrow A), the USB contact 31 has a ground pin (G), a second data pin (D2), and a first data pin ( D1), and the voltage pin (V) in order. After the USB plug is switched as shown in FIG. 4, the placement sequence of the USB contact 31 along the direction from left to right (shown by arrow A ′) is the same as that shown in FIG. 3. . Since the bottom or top USB contacts 31 have the same order, the USB plug according to the present invention can be freely inserted into the standard USB port without having to worry about the insertion direction.

In Fig. 5, a USB plug according to the present invention is inserted into a standard USB port 50. The USB port 50 has a plastic platform 53 with conductive pins 51 embedded therein. When the USB plug is inserted into the port 50, four USB contacts 31 formed on one side come into contact with the conductive pins 51. On the other side of the USB plug, since the protruding rib 12 contacts the elastic metal tongue portion 52 inside the USB port 50, the contact 31 on the other side is connected to the metal tongue portion 52. No contact is made, whereby occurrence of a short circuit can be avoided.

As a result, the top or bottom side of the USB plug can be in electrical contact with the contacts formed in the standard USB port. In addition, the overall thickness of the USB plug is in the range of 1.7 mm to 2.3 mm. The slim form allows the USB plug to be formed integrally with thin electrical appliances such as memory cards.

Since the bottom or top USB contacts 31 have the same order, the USB plug according to the present invention can be freely inserted into the standard USB port without having to worry about the insertion direction.

Claims (3)

A USB plug having a USB port and two sides selectively connectable, An upper frame 10 formed of a rectangular body and having a plurality of first ribs 12 formed along the first slot 11 by the first slot 11 penetrating the rectangular body; The second slot 21 formed of a rectangular main body and corresponding to the plurality of first slots 11 of the upper frame 10 penetrates the rectangular main body so that a plurality of second slots 21 are along the second slot 21. A bottom frame 20 in which ribs 22 are formed, It includes a circuit board 30 mounted between the upper frame 10 and the bottom frame 20, Each of the first ribs 12 is formed between two adjacent first slots 11; Each second rib 22 is formed between two adjacent second slots 21; The circuit board 30 includes a top side and a bottom side; In the upper side and the bottom side near the front end of the circuit board 30, four standard USB contacts (corresponding to the first and second slots 11, 21 of the upper frame 10 and the bottom frame 20) ( 31) USB plugs are formed. 2. The upper frame (10) further comprises a plurality of small concave dimples (13) on the bottom surface, the bottom frame (20) to complementarily engage with the plurality of dimples (13). USB plug, characterized in that it comprises a plurality of protruding stubs (13) on the upper surface. According to claim 1, wherein the circuit board 30 is composed of a plurality of circuit layers 41 to 44, the first layer 41 and the fourth layer 44 is for forming a USB contact 31, The second layer 42 is used as the ground plate, the third layer provides the operating voltage VCC, The USB contact 31 comprises an operating voltage pin V, two data pins D1 and D2, and a ground pin G; The voltage pin V of the first layer 41 is electrically connected to the third layer 43 through the second layer 42; The ground pin G of the first layer 41 is electrically connected to the second layer 42; The voltage pin V of the fourth layer 44 is electrically connected to the third layer 43; The ground pin (G) of the fourth layer (44) is electrically connected to the second layer (42) via the third layer (43).

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