CN202111931U - Circuit board - Google Patents

Abstract

The utility model discloses a circuit board. The circuit board is provided with at least five positioning holes comprising positioning holes H1-H5; by using the center of a circle of the positioning hole H1 as an initial point, a horizontal line as an X-axis and a vertical line as a Y-axis and mm as unit of measurement, the positions of the centers of circles of the positioning holes H1-H5 are respectively H1 (0, 0), H2 (202, 0), H3 (202, 55), H4 (101, 43) and H5 (0, 55); and the errors of the positions of the centers of the circles of the positioning holes H1-H5 are (+/-)2 mm. By using the circuit board provided by the utility model, a corresponding shell is matched by adopting the design of the positioning holes with precise positions; the design of a mounting position is scientific; the requirements of a current universal large-size LCD (liquid Crystal Display) screen display are met; the practicality is good; and the mounting and the disassembly are convenient. Simultaneously, interfaces with different functions can be adjusted according to the use requirements of a client; the circuit boards with different functions are achieved; the application range of a board card is expanded greatly; and the manufacturing cost is saved.

Description

A kind of circuit board

Technical field

The utility model relates to electronic applications, relates in particular to a kind of circuit board that is used for display.

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, are 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 the utility model provides a kind of circuit board, has a plurality of functional interfaces, and adopts the location hole design of exact position, is convenient to installation and removal.

For on realizing purpose being arranged, the utility model discloses a kind of circuit board, be provided with at least 5 location holes above, comprise location hole H1～H5, is initial point with the said location hole H1 center of circle; Horizontal line is the X axle, and vertical line is the Y axle, and unit of measurement is mm, and the position in said location hole H1～H5 center of circle is respectively: H1 (0,0); H2 (202,0), H3 (202,55), H4 (101; 43), H5 (0,55), the site error in said location hole H1～H5 center of circle is ± 2mm.

Preferably, the length of said circuit board is 263mm, and width is 84mm; The coordinate of the extended line right-angle intersection A on the two edges of boards edges, the lower left corner of said circuit board is (5 ,-23), and the coordinate of the extended line right-angle intersection A on the two edges of boards edges, the lower left corner of said circuit board is (5;-23), scale error is ± 2mm.

Preferably, the location hole H1 on the said circuit board, H3, H5 diameter are 3.5mm, and scale error is ± 2mm.Strengthened the location hole H2 in the upper left corner and the upper right corner, the diameter of H5, made that the installation of circuit board is more stable.

Preferably, also be provided with two USB input interfaces on the said circuit board, three HDMI input interfaces; A computer VGA input interface, a computer audio frequency input interface, a color difference components-Y input interface; A color difference components-PB input interface, a color difference components-PR input interface, two composite video input interfaces; Two groups of audio frequency R channel input interfaces and audio left sound channel input interface, a TV RF input interface, a coaxial output interface; A headset output interface, a composite video output interface, one group of audio frequency R channel output interface and audio left sound channel output interface.

Preferably, also be provided with master chip on the said circuit board, RF modular circuit, HDMI high definition input circuit, power amplifier module circuit and power-supply system.Said like this circuit board is the circuit board that can be used for television set or display screen.

The circuit board of the 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 present versatility large-scale LCD screen display, 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 practiced thrift cost of manufacture.

Description of drawings

Fig. 1 is the circuit board Facad structure sketch map that the utility model provides.

Fig. 2 is the interface structure sketch map that circuit board that the utility model provides is looked up.

Each description of reference numerals is following among Fig. 2:

The multimedia input connects 1 HDMI input and connects 2

The HDMI input connects 3 HDMI input and connects 4

Computer VGA input connects the input of 5 computer audio frequency and connects 6

Color difference components-Y input connects 7 color difference components-PB input interface 8

Color difference components-PR input connects the output of 9 composite videos and connects 10

The output of audio frequency R channel connects the output of 11 audio left sound channels and connects 12

Coaxial output connects the output of 13 earphones and connects 14

TV RF input connects the input of 15 multimedias and connects 16

The composite video input connects the input of 17 audio frequency R channels and connects 18

The input of audio left sound channel connects 19 composite video input interfaces 20

Audio frequency R channel input interface 21 audio left sound channel input interfaces 22

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done to describe in detail further below.

Circuit board as illustrated in fig. 1 and 2, that the utility model provides is provided with a plurality of location holes above, comprises location hole H1～H5, is initial point with the said location hole H1 center of circle; Horizontal line is the X axle, and vertical line is the Y axle, and unit of measurement is mm, and the position in said location hole H1～H5 center of circle is respectively: H1 (0,0); H2 (202,0), H3 (202,55), H4 (101; 43), H5 (0,55), the site error in said location hole H1～H5 center of circle is ± 2mm.

The length of said circuit board is 263mm, and width is 84mm, and the coordinate of the extended line right-angle intersection A on the two edges of boards edges, the lower left corner of said circuit board is (5 ,-23), and scale error is ± 2mm.

Location hole H1 on the said circuit board, H3, H5 diameter are 3.5mm, and location hole H2, H5 diameter are 5mm, and scale error is ± 2mm.

As further improvement execution mode, with reference to figure 1-Fig. 2, also be provided with two USB input interfaces on the said circuit board, three HDMI input interfaces; A computer VGA input interface, a computer audio frequency input interface, a color difference components-Y input interface; A color difference components-PB input interface, a color difference components-PR input interface, two composite video input interfaces; Two groups of audio frequency R channel input interfaces and audio left sound channel input interface, a TV RF input interface, a coaxial output interface; A headset output interface, a composite video output interface, one group of audio frequency R channel output interface and audio left sound channel output interface.

Also be provided with master chip on the said circuit board, RF modular circuit, HDMI high definition input circuit, power amplifier module circuit and power-supply system.Said like this circuit board is the circuit board that can be used for television set or display screen.

The above is the preferred implementation of the utility model; Certainly can not limit the interest field of the utility model with this; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and change, these improvement and change also are regarded as the protection range of the utility model.

Claims (5)

1. a circuit board is characterized in that, is provided with at least 5 location holes above, comprises location hole H1～H5, is initial point with the said location hole H1 center of circle; Horizontal line is the X axle, and vertical line is the Y axle, and unit of measurement is mm, and the position in said location hole H1～H5 center of circle is respectively: H1 (0,0); H2 (202,0), H3 (202,55), H4 (101; 43), H5 (0,55), the site error in said location hole H1～H5 center of circle is ± 2mm.

2. circuit board as claimed in claim 1 is characterized in that, the length of said circuit board is 263mm, and width is 84mm, and the coordinate of the extended line right-angle intersection A on the two edges of boards edges, the lower left corner of said circuit board is (5 ,-23), and scale error is ± 2mm.

3. circuit board as claimed in claim 1 is characterized in that, the location hole H1 on the said circuit board, H3, H4 diameter are 3.5mm, and location hole H2, H5 diameter are 5mm, and scale error is ± 2mm.

4. like any described circuit board among the claim 1-3, it is characterized in that, also be provided with two USB input interfaces on the said circuit board, three HDMI input interfaces; A computer VGA input interface, a computer audio frequency input interface, a color difference components-Y input interface; A color difference components-PB input interface, a color difference components-PR input interface, two composite video input interfaces; Two groups of audio frequency R channel input interfaces and audio left sound channel input interface, a TV RF input interface, a coaxial output interface; A headset output interface, a composite video output interface, one group of audio frequency R channel output interface and audio left sound channel output interface.

5. circuit board as claimed in claim 4 is characterized in that, also is provided with master chip on the said circuit board, RF modular circuit, HDMI high definition input circuit, power amplifier module circuit and power-supply system.

Images