CN202111930U

CN202111930U - Circuit board

Info

Publication number: CN202111930U
Application number: CN2011201333348U
Authority: CN
Inventors: 吴明; 王志孟
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2012-01-11
Anticipated expiration: 2021-04-29

Abstract

The utility model discloses a circuit board. The gravity center of the circuit board leans rightwards; the circuit board is provided with at least fifteen positioning holes comprising positioning holes H1-H15; the positioning holes H1-H15 are positioned precisely by using the centre of a circle of the positioning hole H1 as an initial point; and further, the centers of circles of the positioning holes H2 and H3 are positioned on the left of the circuit board. In conclusion, 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. Furthermore, in the utility model, the open positioning holes H2 and H3 positioned on the left of the circuit board are added at the left lower corner of the circuit board, and the circuit board is effectively prevented from inclining as the gravity center deviates, so that the structure is stable after the circuit board is mounted.

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.And if circuit board is whole asymmetric, after the installation, circuit board tends to owing to centre-of gravity shift tilts.

Therefore, be badly in need of a kind of location hole design, be convenient to installation and removal with exact position, and the stable circuit board of mounted configuration.

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, be convenient to installation and removal, and mounted configuration is stable.

For on realizing purpose is arranged, the utility model discloses a kind of circuit board, said circuit board center of gravity takes over, and is provided with at least 15 location holes above, comprises location hole H1～H15, is initial point with the said location hole H1 center of circle, and horizontal line is the X axle; Vertical line is the Y axle, and unit of measurement is mm, and the position in said location hole H1～H15 center of circle is respectively: H1 (0,0), and H2 (4.5,2.5), H3 (4.5; 9.5), H4 (171.1,0.4), H5 (175,0), H6 (175,4); H7 (81.5,12.5), H8 (86.5,15.5), H9 (95,60), H10 (130; 130), H11 (172.5,136), H12 (177.5,139), H13 (175,170); H14 (93.5,170), H15 (0,96.5), said location hole H2 and location hole H3 are positioned on the left side of said circuit board, and the site error in said location hole H1～H15 center of circle is ± 2mm.

The length of said circuit board is 185mm, and width is 182mm, 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 ,-7), and scale error is ± 2mm.

Location hole H1～H2 on the said circuit board, H4～H15 diameter are 3.5mm, and the diameter of location hole H3 is 5mm, and scale error is ± 2mm.

Said circuit board is bending, wherein goes up length of side 92mm, following length of side 185mm, and the long 108.5mm in the left side, the long 182mm in the right, scale error is ± 2mm.

Also offer an intercommunicating pore between said location hole H4 and the location hole H5, said intercommunicating pore is communicated with said location hole H4 and location hole H6 and forms to the crooked new location hole H16 in upper right side.Because the coordinate of H4 is (171.1,0.4), the coordinate of location hole H5 is (175; 0); Location hole crooked that location hole H4 and location hole H6 is communicated with formation to the upper right side, during mounting circuit boards, mounting screw in the two ends of location hole (being location hole H4 and location hole H6); Two screws bear and are directed downwards the active force of taking back; Again because location hole H4 and location hole H6 are in the lower right of circuit board, and the center of gravity of circuit board to the right on the upper side, so this location hole further avoids circuit board owing to centre-of gravity shift tilts.

Particularly, said intercommunicating pore comprises the circular hole that is connected with said location hole H5 and the straight hole that offers along the common tangent of said circular hole and location hole H4, and the diameter of said circular hole is 3.5mm, and central coordinate of circle is (172.2 ,-0.1).

As first kind of improved procedure, also be provided with three HDMI input interfaces on the said circuit board, a SCART input interface; A computer VGA input interface, a computer VGA audio input interface, a composite video input interface; First group of audio frequency R channel input interface and one first group audio left sound channel input interface; A color difference components input interface, second group of audio input interface, a TV RF input interface; A headset output interface, a coaxial output interface and a multimedia input interface.

Particularly, also be provided with master chip on the said circuit board, RF modular circuit, analog audio-video commutation 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.

As second kind of improved procedure, also be provided with three HDMI input interfaces on the said circuit board, a color difference components-Y input interface; A color difference components-PB input interface, a color difference components-PR input interface, a computer VGA input interface; A computer VGA audio input interface, a composite video input interface, first group of audio frequency R channel input interface and one first group audio left sound channel input interface; A color difference components input interface, second group of audio input interface, a TV RF input interface; A headset output interface, a coaxial output interface and a multimedia input interface.

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.And the coordinate of H2 is (4.5,2.5); The coordinate of H3 is (4.5,9.5), and said location hole H2 and location hole H3 are positioned at and make location hole H2 and H3 be open location hole on the left side of said circuit board; During mounting circuit boards, at fixtures such as location hole H2 and H3 installing and locating posts, can the latch circuit plate; Prevent circuit board effectively owing to centre-of gravity shift tilts, make the circuit board mounted configuration stable.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 embodiment one provides.

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

Fig. 3 is the interface structure sketch map that the circuit board right side that the utility model embodiment one provides is looked.

Fig. 4 is the circuit board Facad structure sketch map that the utility model embodiment two provides.

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

Fig. 6 is the interface structure sketch map that the circuit board right side that the utility model embodiment two provides is looked.

Each description of reference numerals is following among Fig. 2,3:

HDMI input interface 1 HDMI input interface 2

HDMI input interface 3 SCART input interfaces 4

Computer VGA input interface 5 computer VGA audio input interfaces 6

Composite video input interface 7 audio frequency R channel input interfaces 8

Audio left sound channel input interface 9 color difference components input interfaces 10

Second group of audio input interface 11 TV RF input interface 12

Headset output interface 13 coaxial output interfaces 14

Multimedia input interface 15

Each description of reference numerals is following among Fig. 5,6:

HDMI input interface 1 HDMI input interface 2

HDMI input interface 3 color difference components-Y input interface 4

Color difference components-PB input interface 5 color difference components-PR input interface 6

Computer VGA input interface 7 computer VGA audio input interfaces 8

Composite video input interface 9 audio frequency R channel input interfaces 10

Audio left sound channel input interface 11 color difference components input interfaces 12

Second group of audio input interface 13 TV RF input interface 14

Headset output interface 15 coaxial output interfaces 16

Multimedia input interface 17

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.

With reference to figure 1-Fig. 3, be the circuit board that the utility model embodiment one provides, said circuit board center of gravity takes over, and is provided with at least 15 location holes above, comprises location hole H1～H15, is initial point with the said location hole H1 center of circle, and horizontal line is the X axle; Vertical line is the Y axle, and unit of measurement is mm, and the position in said location hole H1～H15 center of circle is respectively: H1 (0,0), and H2 (4.5,2.5), H3 (4.5; 9.5), H4 (171.1,0.4), H5 (175,0), H6 (175,4); H7 (81.5,12.5), H8 (86.5,15.5), H9 (95,60), H10 (130; 130), H11 (172.5,136), H12 (177.5,139), H13 (175,170); H14 (93.5,170), H15 (0,96.5), said location hole H2 and location hole H3 are positioned on the left side of said circuit board, and the site error in said location hole H1～H15 center of circle is ± 2mm.

Also offer an intercommunicating pore between said location hole H4 and the location hole H5, said intercommunicating pore is communicated with said location hole H4 and location hole H6 and forms to the crooked new location hole H16 in upper right side.Particularly; Said intercommunicating pore comprises the circular hole that is connected with said location hole H5 and the straight hole that offers along the common tangent of said circular hole and location hole H4; The diameter of said circular hole is 3.5mm; Central coordinate of circle is (172.2 ,-0.1), and said circular hole and straight hole are communicated with the said location hole H16 of formation with said location hole H5 with location hole H4.

With reference to figure 1-Fig. 3, also be provided with three HDMI input interfaces on the said circuit board, a SCART input interface; A computer VGA input interface, a computer VGA audio input interface, a composite video input interface; First group of audio frequency R channel input interface and one first group audio left sound channel input interface; A color difference components input interface, second group of audio input interface, a TV RF input interface; A headset output interface, a coaxial output interface and a multimedia input interface.

With reference to figure 4-Fig. 6, be the circuit board that the utility model embodiment two provides, said circuit board center of gravity inclined right is provided with at least 15 location holes above, comprises location hole H1～H15, is initial point with the said location hole H1 center of circle, and horizontal line is the X axle; Vertical line is the Y axle, and unit of measurement is mm, and the position in said location hole H1～H15 center of circle is respectively: H1 (0,0), and H2 (4.5,2.5), H3 (4.5; 9.5), H4 (171.1,0.4), H5 (175,0), H6 (175,4); H7 (81.5,12.5), H8 (86.5,15.5), H9 (95,60), H10 (130; 130), H11 (172.5,136), H12 (177.5,139), H13 (175,170); H14 (93.5,170), H15 (0,96.5), said location hole H2 and location hole H3 are positioned on the left side of said circuit board, and the site error in said location hole H1～H15 center of circle is ± 2mm.

Also offer an intercommunicating pore between said location hole H4 and the location hole H5, said intercommunicating pore is communicated with said location hole H4 and location hole H6 and forms to the crooked new location hole H16 in upper right side.Said intercommunicating pore comprises the circular hole that is connected with said location hole H5 and the straight hole that offers along the common tangent of said circular hole and location hole H4; The diameter of said circular hole is 3.5mm; Central coordinate of circle is (172.2;-0.1), said circular hole and straight hole are communicated with the said location hole H16 of formation with said location hole H5 with location hole H4.

Embodiment two is to have changed the SCART interface with the difference of embodiment one, with reference to figure 4-Fig. 6, also is provided with three HDMI input interfaces on the said circuit board; A color difference components-Y input interface, a color difference components-PB input interface, a color difference components-PR input interface; A computer VGA input interface, a computer VGA audio input interface, a composite video input interface; First group of audio frequency R channel input interface and one first group audio left sound channel input interface; A color difference components input interface, second group of audio input interface, a TV RF input interface; A headset output interface, a coaxial output interface and a multimedia input interface.

The above disclosed preferred embodiment that is merely the utility model can not limit the interest field of the utility model certainly with this, so according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.

Claims

1. a circuit board is characterized in that, said circuit board center of gravity takes over, and is provided with at least 15 location holes above, comprises location hole H1～H15, is initial point with the said location hole H1 center of circle, and horizontal line is the X axle; Vertical line is the Y axle, and unit of measurement is mm, and the position in said location hole H1～H15 center of circle is respectively: H1 (0,0), and H2 (4.5,2.5), H3 (4.5; 9.5), H4 (171.1,0.4), H5 (175,0), H6 (175,4); H7 (81.5,12.5), H8 (86.5,15.5), H9 (95,60), H10 (130; 130), H11 (172.5,136), H12 (177.5,139), H13 (175,170); H14 (93.5,170), H15 (0,96.5), said location hole H2 and location hole H3 are positioned on the left side of said circuit board, and the site error in said location hole H1～H15 center of circle is ± 2mm.

2. circuit board as claimed in claim 1 is characterized in that, the length of said circuit board is 185mm, and width is 182mm, 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 ,-7), and scale error is ± 2mm.

3. circuit board as claimed in claim 1 is characterized in that, the location hole H1～H2 on the said circuit board, H4～H15 diameter are 3.5mm, and the diameter of location hole H3 is 5mm, and scale error is ± 2mm.

4. circuit board as claimed in claim 1 is characterized in that said circuit board is bending, wherein goes up length of side 92mm, following length of side 185mm, and the long 108.5mm in the left side, the long 182mm in the right, scale error is ± 2mm.

5. circuit board as claimed in claim 1 is characterized in that, also offers an intercommunicating pore between said location hole H4 and the location hole H5, and said intercommunicating pore is communicated with said location hole H4 and location hole H6 and forms to the crooked new location hole H16 in upper right side.

6. circuit board as claimed in claim 1; It is characterized in that said intercommunicating pore comprises the circular hole that is connected with said location hole H5 and the straight hole that offers along the common tangent of said circular hole and location hole H4, the diameter of said circular hole is 3.5mm; Central coordinate of circle is (172.2 ,-0.1).

7. like any described circuit board among the claim 1-6, it is characterized in that, also be provided with three HDMI input interfaces on the said circuit board; A SCART input interface, a computer VGA input interface, a computer VGA audio input interface; A composite video input interface, first group of audio frequency R channel input interface and one first group audio left sound channel input interface, a color difference components input interface; Second group of audio input interface; A TV RF input interface, a headset output interface, a coaxial output interface and a multimedia input interface.

8. circuit board as claimed in claim 7 is characterized in that, also is provided with master chip on the said circuit board, RF modular circuit, analog audio-video commutation circuit, HDMI high definition input circuit, power amplifier module circuit and power-supply system.

9. like any described circuit board among the claim 1-6, it is characterized in that, also be provided with three HDMI input interfaces on the said circuit board; A color difference components-Y input interface, a color difference components-PB input interface, a color difference components-PR input interface; A computer VGA input interface, a computer VGA audio input interface, a composite video input interface; First group of audio frequency R channel input interface and one first group audio left sound channel input interface, a color difference components input interface, second group of audio input interface; A TV RF input interface, a headset output interface, a coaxial output interface and a multimedia input interface.

10. circuit board as claimed in claim 9 is characterized in that, also is provided with master chip on the said circuit board, RF modular circuit, analog audio-video commutation circuit, HDMI high definition input circuit, power amplifier module circuit and power-supply system.