CN202068665U

CN202068665U - Circuit board

Info

Publication number: CN202068665U
Application number: CN2011201302068U
Authority: CN
Inventors: 包小诗; 徐超警
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority date: 2011-04-28
Filing date: 2011-04-28
Publication date: 2011-12-07
Anticipated expiration: 2021-04-28

Abstract

The utility model discloses a circuit board which comprises a main circuit board. A plurality of positioning holes are arranged on the main circuit board; and the main circuit board comprises positioning holes H1-H4. A circle center of the positioning hole H1 is used as an original point; a horizontal line is an axis X; a vertical line is an axis Y; a metering unit is mm; the positions of the circle centers of the positioning holes H1-H4 are respectively as follows: H1(0,0), H2(171.5,0), H3(175.5,65.0) and H4 (-22.0, 65.0); and the position errors of the circle centers of the positioning holes are +2.0mm/-2.0mm. By the adoption of the design of the positioning holes in accurate positions, the matching shell meets the requirement of large-scale LCD (liquid crystal display) screen display with generality; therefore, the circuit board has good practicability and convenience in installation and detachment.

Description

Circuit board

Technical field

The utility model relates to electronic applications, relates more specifically to a kind of circuit board.

Background technology

Traditional circuit board does not adopt the location hole design of exact position for the shell of coupling, position design is science not, do not meet the requirement of present versatility large-scale LCD screen display, practicality, versatility are poor, be not easy to client's installation and removal, and the interface number is few, and the integrated circuit board function is low.

The utility model content

The purpose of this utility model provides a kind of circuit board, adopts the location hole design of exact position, and the corresponding shell of coupling meets the requirement of present versatility large-scale LCD screen display, and practicality is convenient to installation and removal well.

For achieving the above object, the utility model provides a kind of circuit board, this circuit board comprises a main circuit board, described main circuit board is provided with some location holes, comprises location hole H1～H4, is initial point with the described location hole H1 center of circle, horizontal line is an X-axis, vertical line is a Y-axis, and unit of measurement is mm, and the position in described location hole H1～H4 center of circle is respectively: H1 (0,0), H2 (171.5,0), H3 (175.5,65.0), H4 (22.0,65.0), the site error in each described location hole H1～H4 center of circle is ± 2.0mm.

Preferably, the length of described main circuit board is 272.0mm, and width is 90.0mm, and scale error is ± 2.0mm.

Preferably, the described location hole diameter of each on the described main circuit board is 3.3mm, and scale error is ± 2mm.

Preferably, described circuit board also is provided with the RF module, main control chip, analog audio-video commutation circuit, HDMI high definition input circuit, CI input circuit, power amplifier module circuit and power-supply system.

Preferably, also be provided with on the described main circuit board and also be provided with a multimedia input interface on the described main circuit board, two HDMI input interfaces, a computer VGA input interface, a S-VIDEO input interface, a color difference components-PR/CR input interface, a composite video input interface, one first group audio frequency R channel input interface, one first group audio frequency L channel input interface, a SCART input interface, a coaxial output interface, a TV RF input interface, a color difference components-PB/CB input interface, a color difference components-Y input interface, one second group audio frequency R channel input interface, one second group audio frequency L channel input interface, a CI input interface.

Further, also be provided with a multimedia input interface on the described main circuit board, two HDMI input interfaces, a computer VGA input interface, a S-VIDEO input interface, a color difference components 1-PR/CR input interface, first group of composite video input interface, one first group audio frequency R channel input interface, one first group audio frequency L channel input interface, second group of composite video input interface, one second group audio frequency R channel input interface, one second group audio frequency L channel input interface, a coaxial output interface, a TV RF input interface, a computer VGA audio input interface, a color difference components 1-PB/CB input interface, a color difference components 1-Y input interface, the 3rd a group of audio frequency R channel input interface, the 3rd a group of audio frequency L channel input interface, a color difference components 2-Y input interface, a color difference components 2-PB/CB input interface, a color difference components 2-PR/CR input interface.

Circuit board of the present utility model adopts the location hole design of exact position, the shell that coupling is corresponding, and the position design science meets the requirement of the display screen of present versatility large-scale LCD, and versatility, practicality are good, are convenient to client's installation and removal; While can be adjusted the interface of difference in functionality according to client's user demand, and the installation number of interface, realizes the circuit board of difference in functionality, has expanded the range of application of integrated circuit board greatly, has saved cost of manufacture.

By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.

Description of drawings

Fig. 1 is the circuit board Facad structure schematic diagram that the utility model embodiment one provides.

Fig. 2 is the interface structure schematic diagram that circuit board that the utility model embodiment one provides is looked up.

Fig. 3 is the interface Chinese tabulation that circuit board that the utility model embodiment one provides is looked up.

Fig. 4 is the circuit board Facad structure schematic diagram that the utility model embodiment two provides.

Fig. 5 is the interface structure schematic diagram that circuit board that the utility model embodiment two provides is looked up.

Fig. 6 is the interface Chinese tabulation that circuit board that the utility model embodiment two provides is looked up.

Embodiment

With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the utility model provides a kind of circuit board, adopts the location hole design of exact position, and the corresponding shell of coupling meets the requirement of present versatility large-scale LCD screen display, and practicality is convenient to installation and removal well.

As shown in Figure 1, 2, the circuit board that the utility model embodiment one provides, comprise a main circuit board, described main circuit board is provided with some location holes, comprises location hole H1～H4, is initial point with the described location hole H1 center of circle, horizontal line is an X-axis, vertical line is a Y-axis, and unit of measurement is mm, and the position in described location hole H1～H4 center of circle is respectively: H1 (0,0), H2 (171.5,0), H3 (175.5,65.0), H4 (22.0,65.0), the site error in each described location hole H1～H4 center of circle is ± 2.0mm.And the diameter of each described location hole is 3.3mm, and scale error is ± 2.0mm; In addition, the length of described main circuit board is 272.0mm, and width is 90.0mm, and scale error is ± 2.0mm.

Further, also be provided with the RF module on the described circuit board, main control chip, analog audio-video commutation circuit, HDMI high definition input circuit, CI input circuit, power amplifier module circuit and power-supply system.

Described main circuit board is provided with a multimedia input interface, two HDMI input interfaces, a computer VGA input interface, a S-VIDEO input interface, a color difference components-PR/CR input interface, a composite video input interface, one first group audio frequency R channel input interface, one first group audio frequency L channel input interface, a SCART input interface, a coaxial output interface, a TV RF input interface, a color difference components-PB/CB input interface, a color difference components-Y input interface, one second group audio frequency R channel input interface, one second group audio frequency L channel input interface, a CI input interface.Among the embodiment one among each interface name and Fig. 2 the tabulation of sequence number correspondence specifically see Fig. 3.

Shown in Fig. 4,5, the difference of circuit board that the utility model embodiment two provides and embodiment one is: described main circuit board is deleted the CI input interface on the basis of enforcement one, and the SCART input interface is replaced by one group of video input interface, being both increases by one road color difference components input interface.Particularly, the described main circuit board of present embodiment is provided with a multimedia input interface, two HDMI input interfaces, a computer VGA input interface, a S-VIDEO input interface, a color difference components 1-PR/CR input interface, first group of composite video input interface, one first group audio frequency R channel input interface, one first group audio frequency L channel input interface, second group of composite video input interface, one second group audio frequency R channel input interface, one second group audio frequency L channel input interface, a coaxial output interface, a TV RF input interface, a computer VGA audio input interface, a color difference components 1-PB/CB input interface, a color difference components 1-Y input interface, the 3rd a group of audio frequency R channel input interface, the 3rd a group of audio frequency L channel input interface, a color difference components 2-Y input interface, a color difference components 2-PB/CB input interface, a color difference components 2-PR/CR input interface.Among the embodiment two among each interface name and Fig. 5 the tabulation of sequence number correspondence specifically see Fig. 6.

Abovely the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to essence of the present utility model in conjunction with most preferred embodiment.

Claims

1. a circuit board is characterized in that, comprises a main circuit board, described main circuit board is provided with some location holes, comprises location hole H1～H4, is initial point with the described location hole H1 center of circle, horizontal line is an X-axis, and vertical line is a Y-axis, and unit of measurement is mm, the position in described location hole H1～H4 center of circle is respectively: H1 (0,0), and H2 (171.5,0), H3 (175.5,65.0), H4 (22.0,65.0), the site error in each described location hole H1～H4 center of circle is ± 2.0mm.

2. circuit board according to claim 1 is characterized in that, the length of described main circuit board is 272.0mm, and width is 90.0mm, and scale error is ± 2.0mm.

3. circuit board according to claim 1 is characterized in that, the described location hole diameter of each on the described main circuit board is 3.3mm, and scale error is ± 2.0mm.

4. circuit board according to claim 1 is characterized in that, also is provided with the RF module, main control chip, analog audio-video commutation circuit, HDMI high definition input circuit, CI input circuit, power amplifier module circuit and power-supply system.

5. according to each described circuit board of claim 1-4, it is characterized in that, also be provided with a multimedia input interface on the described main circuit board, two HDMI input interfaces, a computer VGA input interface, a S-VIDEO input interface, a color difference components-PR/CR input interface, a composite video input interface, one first group audio frequency R channel input interface, one first group audio frequency L channel input interface, a SCART input interface, a coaxial output interface, a TV RF input interface, a color difference components-PB/CB input interface, a color difference components-Y input interface, one second group audio frequency R channel input interface, one second group audio frequency L channel input interface, a CI input interface.

6. according to each described circuit board of claim 1-4, it is characterized in that, also be provided with a multimedia input interface on the described main circuit board, two HDMI input interfaces, a computer VGA input interface, a S-VIDEO input interface, a color difference components 1-PR/CR input interface, first group of composite video input interface, one first group audio frequency R channel input interface, one first group audio frequency L channel input interface, second group of composite video input interface, one second group audio frequency R channel input interface, one second group audio frequency L channel input interface, a coaxial output interface, a TV RF input interface, a computer VGA audio input interface, a color difference components 1-PB/CB input interface, a color difference components 1-Y input interface, the 3rd a group of audio frequency R channel input interface, the 3rd a group of audio frequency L channel input interface, a color difference components 2-Y input interface, a color difference components 2-PB/CB input interface, a color difference components 2-PR/CR input interface.