CN201084381Y - Image display connection port with protection circuit - Google Patents

Abstract

An image display connection port with a protection circuit, comprising: the circuit board comprises a bearing seat, a first terminal group, a circuit board, a second terminal group, a bottom plate and a shell. The front end of the body of the bearing seat is provided with a closed wall, the closed wall extends outwards and is provided with a bearing sheet, and the bearing part of the bearing sheet and the closed wall is provided with a plurality of through holes. The first terminal group is arranged on the bearing sheet through the through hole. The circuit board is arranged in the bearing seat, and the first terminal group is electrically connected with at least one protection component. The second terminal group is electrically connected with the circuit board. The bottom plate is also assembled at the bottom of the bearing seat. The shell is provided with a hollow body, the front end of the hollow body is provided with a socket, and the shell is assembled outside the bearing seat, so that the bearing sheet of the bearing seat is positioned in the socket. When a large current or surge signal enters the image display connection port, the protection assembly can isolate the large current or surge signal from entering so as to prevent certain electronic parts of the circuit board from being damaged.

Description

Video display connection port with protection circuit

technical field

The utility model relates to a connection port, in particular to a high-speed, high-definition image display connection port.

Background technique

The Video Electronics Standards Association (VESA) has officially approved the new generation of digital image transmission interface (DisplayPort), adding support for HDCP (High-bandwidth Digital Content Protection), which can meet the needs of high-resolution laser disc playback such as BD and HD DVD .

The image display connection port is a new generation of digital image transmission interface formulated by VESA for PCs and digital home appliances. It can replace the existing PC image transmission interfaces such as low voltage differential signal (LVDS), DVI and VGA, and provide internal/external connections. High-frequency broadband digital image (and sound effect) transmission function.

The image display connection port uses a small, easy-to-plug external connector similar to the size of a standard USB connector. It adopts 8B/10B encoding, embedded frequency signals and micro-packet architecture, which can reduce electromagnetic interference and provide a maximum of 10.8Gbps, which is higher than the existing DVI interface. High-speed transmission bandwidth, direct and flexible image transmission configuration, and also supports functions such as digital audio transmission, two-way auxiliary data transmission, and digital content encryption protection.

In the part of digital content encryption and protection, the unique DPCP specification is adopted, which meets the requirements of high-resolution laser disc playback of Blu-ray lasers such as BD or HD DVD, so that devices using image display connection ports can have digital high-resolution playback of BD or HD DVD. Resolution audio and video output function.

Although the image display connection port has the above-mentioned functions, when the image display connection port transmits audio-visual signals with an external audio-visual device through a transmission line, when the external audio-visual device does not operate normally, is struck by lightning or improperly plugged in and out, the resulting The large current or surge signal will be transmitted to the circuit board electrically connected with the image display connection port through the video display connection port, and the large current or surge signal (spark) generated at this moment may easily cause some Component damaged.

Contents of the invention

The main purpose of this utility model is to solve the defects of the traditional image display connection port. The utility model adds a protection circuit inside the image display connection port. The protection circuit is in the event of abnormal operation of the external audio-visual device, being struck by lightning or improperly plugging and unplugging the terminal. , isolate the generated large current or surge signal, and avoid inputting to the circuit board electrically connected with the image display connection port, which may cause damage to some electronic parts of the circuit board.

In order to achieve the above-mentioned purpose, the image display connection port with a protection circuit of the present invention includes: a bearing base, a first terminal group, a circuit board, a second terminal group, a bottom plate and a housing; wherein, the bearing base has a front end The body of the closed wall is provided, and the closed wall is extended outwards with a bearing piece and a chassis, and a plurality of grooves are provided on the upper and lower sides of the bearing piece, and a plurality of perforations are provided on the joint between the groove and the closed wall. The perforation communicates with the accommodating space inside the body. The first terminal group is composed of a plurality of pins. The pins include front pins and rear pins. The front pins pass through the holes and are fixedly inserted into the grooves. The above circuit board is electrically connected with at least one protection component. The function of this protection component is to prevent instantaneous large current or surge signal from being input into the electronic device. One end of the above circuit board is provided with a plurality of perforations, and the rear pins pass through the perforations and The circuit boards are electrically connected, and the other end of the circuit board has a plurality of electrode pins. The second terminal group is composed of a plurality of pins, the pins include front pins and rear pins, and the front pins are electrically connected with the electrode pins of the circuit board. The bottom plate is provided with a disc at the bottom of the bearing seat, and one end of the disc is bent with a stopper, and the stopper is assembled at the back opening of the bearing seat. In addition, the connection between the disc part and the stopper is provided with a perforation. The above-mentioned through holes provide a passing space for the rear pins of the second terminal group. The above-mentioned shell has a hollow body, the front end of the hollow body has a plug-in interface, and the opening edge of the plug-in port is supported by a plurality of arc-shaped baffles. When the seat is assembled inside the main body, it can prevent the bearing seat from loosening. There are assembly pins extending from the bottom of the side of the main body, and the pins provide electrical connection or fixed connection between the main body and the main circuit board of the electronic device.

The utility model adds a protection circuit inside the image display connection port, and the protection circuit isolates the large current or surge signal generated by the external device to avoid damage to some electronic parts of the circuit board caused by its input.

Description of drawings

Figure 1 is a three-dimensional schematic diagram of the appearance of the image display connection port of the present invention;

Fig. 2 is an exploded schematic view of the image display connection port of the present invention;

Fig. 3 is an exploded schematic diagram of another angle of the image display connection port of the present invention;

FIG. 4 is a schematic cross-sectional view of an image display connection port combination of the present invention; and,

FIG. 5 is a schematic diagram of the use status of the image display connection port of the present invention.

Explanation of main component symbols

Bearing seat 1 body 11

Closed wall 12 Perforation 121

Carrier sheet 13 Groove 131

Chassis 14 Accommodating space 15

Gap 16 Boss 17

The first terminal group 2 pin 21

Front pin 211 Rear pin 212

Circuit board 3 protection components 31

Perforation 32 Electrode pin 33

The second terminal group 4 pin 41

Front pin 411 Rear pin 412

Bottom plate 5 plate part 51

Stopper 52 Perforation 53

Shell 61 Hollow body 61

Socket 62 Curved baffle 621

Block 63, 64 Pin 65

Circuit board 7 Image display transmission line 8

Plug 81

Detailed ways

The technical contents and detailed description of the present utility model will be described as follows in conjunction with the accompanying drawings:

Referring to FIG. 1 to FIG. 3 , they are three-dimensional, exploded and exploded schematic diagrams of the image display connection port of the present invention. As shown in the figure: the image display connection port with a protection circuit of the present invention includes: a bearing base 1, a first terminal group 2, a circuit board 3, a second terminal group 4, a bottom plate 5 and a housing 6; wherein, the bearing base 1. Made of insulating material, it has a body 11 with a closed wall 12 at the front end. The closed wall 12 extends outwards with a carrier 13 and a chassis 14. The surface and bottom of the carrier 13 are provided with multiple grooves 131, and a plurality of perforations 121 are provided at the joint between the groove 131 and the closed wall 12. The perforations 121 communicate with the housing space 15 inside the body 11, and are used to provide the front pins 212 of the first terminal group 2 from the housing space 15. After passing through the through hole 121, the pin 212 can be plugged and fixed in the groove 131; in addition, a gap 16 is provided between the closed wall 12 and the chassis 14, and the gap 16 is used for inserting the bottom end of the casing 6; the back of the chassis 14 accepts the boss 17. The boss 17 helps the connector to be fixed on the circuit board (not shown in the figure).

The first terminal group 2 is composed of a plurality of L-shaped pins 21, the pins 21 have a front pin 211, and the rear end of the front pin 211 is extended with a rear pin 212 bent at 90 degrees. After the front pin 212 passes through the through hole 121 , the front pin 211 is fixedly inserted into the groove 131 .

The circuit board 3, on which at least one protection component 31 of a protection IC is electrically connected, and the function of the protection component 31 is to prevent the instantaneous large current or surge signal from being input into the electronic device (not shown in the figure), and the main circuit of the electronic device The electronic components on the board are burnt out; in addition, one end of the circuit board 3 is provided with a plurality of perforations 32, and the perforations 32 are used for the rear pins 212 of the pins 21 to pass through, so that the rear pins 212 and the circuit board 3 are electrically connected; The other end of the board 3 has a plurality of electrode pins 33 , and the electrode pins 33 are electrically connected to the second terminal group 4 .

The second terminal group 4 is composed of a plurality of stepped pins 41, the front pins 411 of the pins 41 are electrically connected to the electrode pins 33 of the circuit board 3, and the rear pins 412 are connected to the external circuit board (in the figure). not shown) electrical connection.

The bottom plate 5 is an L-shaped body made of insulating material, on which is provided a plate portion 51 at the bottom of the group bearing seat 1. One end of the plate portion 51 has a bent stop portion 52, and the stop portion 52 is assembled on the bottom of the support seat 1. At the rear opening, a through hole 53 is provided at the junction of the plate portion 51 and the blocking portion 52 , and the through hole 53 provides a space for the rear pin 412 of the second terminal group 4 to pass through.

The shell 6 is a hollow body 61 made of metal material. The front end of the body 61 has a plug-in port 62. The plug-in port 62 provides a connecting port (not shown in the figure) of the transmission line for plugging in. The opening edge of the plug-in port 62 accepts a plurality of arc-shaped stops piece 621; in addition, the rear side and side ends of the hollow body 61 are respectively provided with baffles 63, 64, and the baffles 63, 64 can prevent the bearing seat 1 from loosening when the bearing seat 1 is assembled inside the body 61; and, A set of pins 65 extend from the bottom of the side of the body 61 , and the pins 65 are used for electrically connecting or fixing the body 61 to a main circuit board of an electronic device (not shown in the figure).

FIG. 4 is a schematic cross-sectional view of an image display connection port assembly of the present invention. As shown in the figure: the image shows that when the connecting ports are assembled, the front pins 211 of the first terminal group 2 pass through the protrusions 17, so that the front pins 211 are inserted into the grooves 131 of the carrier sheet 13, and the pins The rear pin 212 of 21 passes through the perforation 32 of the circuit board 3 and is electrically connected with the circuit board 3, and the electrode pin 33 on the circuit board 3 is electrically connected with the front pin 411 of the second terminal group 4, and then on the bottom of the bearing seat 1 Assembling the insulating base 4 , the rear pins 412 of the second terminal group 4 pass through the through hole 53 of the insulating base 5 , and the blocking portion 52 of the insulating base 5 is located at the opening on the rear side of the supporting base 1 .

After the bearing seat 1, the first terminal group 2, the circuit board 3, the second terminal group 4 and the insulating base plate 5 are assembled, they are then assembled inside the housing 6, so that the carrier sheet 13 at the front end of the bearing seat 1 extends to the socket 62, and the bottom end of the socket 62 is inserted into the gap 16, and then the retaining pieces 53, 54 on the rear side and the side of the housing 6 are bent, and the bearing seat 1 can be assembled in the housing 6.

FIG. 5 is a schematic diagram of the usage state of the image display connection port of the present invention. As shown in the figure: when the image display connection port of the present utility model is in use, the rear pin 412 of the second terminal group 4 extending outside the image display connection port is electrically connected to the circuit board 7, and then the image display transmission line 8 is plugged 81 is plugged in by the plug interface 62, and when it is in electrical contact with the first terminal group 2, the audio-visual signal can be transmitted to the circuit board 3, and then the audio-visual signal is transmitted to the circuit board 7 by the second terminal group 4 of the circuit board 3. The video and audio signals of the external device are transmitted to the circuit board 7 of the device for processing.

When the external audio-visual device does not work normally or is struck by lightning, the generated large current or surge signal is transmitted from the first terminal group 2 to the circuit board 3, and the protection component 31 on the circuit board 3 makes the circuit open, so as to Avoiding large currents or surge signals from being transmitted to the circuit board 7 of the device, causing damage to the circuit board 7 .

The above is only a preferred embodiment of the utility model, and does not therefore limit the scope of the patent of the present invention. All other equivalent changes or modifications made within the scope of the features of the utility model should be included in the scope of the patent of the utility model Inside.

Claims (9)

1. A video display connection port with a protection circuit, characterized in that it comprises: The bearing seat has a body on it, and the front end of the body is provided with a closed wall. The closed wall extends outwards and has a bearing piece and a chassis. The surface and bottom surface of the bearing piece are provided with a plurality of grooves, and the grooves and A plurality of perforations are provided at the joint of the closed wall, and the perforations communicate with the accommodating space inside the body; The first terminal group is disposed in the groove through the accommodating space through the perforation; A circuit board, arranged in the accommodating space, and electrically connected to the first terminal group, the circuit board is electrically connected to at least one protection component; a second terminal group electrically connected to the circuit board; a bottom plate assembled at the bottom of the bearing seat; and The shell has a hollow body, and the front end of the hollow body is provided with an insertion port, and the shell is assembled on the outside of the bearing seat, so that the bearing piece of the bearing seat is located in the insertion port. 2 . The image display connection port with protection circuit according to claim 1 , wherein a gap is provided between the sealing wall and the chassis. 3 . 3 . The image display connection port with a protection circuit as claimed in claim 1 , wherein a protrusion is received on the back of the chassis. 4 . 4. The image display connection port with a protection circuit according to claim 1, wherein the pins of the first terminal group are L-shaped, and the first terminal group is composed of a plurality of pins, so The pins include a front pin disposed in the groove of the bearing sheet, and a rear pin extending from the rear end of the front pin. 5. The image display connection port with a protection circuit as claimed in claim 1, wherein one end of the circuit board has a through hole for the rear pin of the first terminal group to penetrate, and the circuit board The other end has a plurality of areas electrically connected to the front pins of the pins of the second terminal group, the second terminal group is composed of a plurality of stepped pins, and the pins are provided with front pins and the rear pin, the front pin is electrically connected with the electrode pin of the circuit board. 6. The image display connection port with a protection circuit as claimed in claim 1, wherein the protection component is a protection IC. 7. The image display connection port with a protective circuit according to claim 1, wherein the bottom plate is made of an insulating material into an L-shaped body, and the bottom plate is assembled on the plate portion at the bottom of the bearing seat, and the plate portion One end has a bent blocking part, and the blocking part group is at the opening at the back of the bearing seat. In addition, a perforation is opened at the connection between the plate part and the blocking part, and the perforation is provided for the rear pin of the second terminal group. out of space. 8. The image display connection port with a protective circuit according to claim 1, wherein the housing is made of metal, and the opening edge of the socket of the housing is supported by a plurality of arc-shaped baffles, and the housing When assembled outside the bearing seat, the bottom end of the socket is inserted into the gap of the bearing seat. 9 . The image display connection port with a protective circuit as claimed in claim 1 , wherein the hollow body is provided with a blocking plate at the rear and side ends, and a set of pins extend from the bottom of the side of the body. 10 .

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