CN102123559B

CN102123559B - Communication device and circuit board structure thereof

Info

Publication number: CN102123559B
Application number: CN201010004509A
Authority: CN
Inventors: 许振贤
Original assignee: Acer Inc
Current assignee: Acer Inc
Priority date: 2010-01-07
Filing date: 2010-01-07
Publication date: 2012-09-19
Anticipated expiration: 2030-01-07
Also published as: CN102123559A

Abstract

The invention discloses a communication device which comprises a circuit board, a first metal shielding structure, a radio frequency circuit and a fundamental frequency circuit, wherein the circuit board comprises a circuit layer, an insulation layer and a grounding layer; the insulation layer is arranged below the circuit layer, the grounding layer is arranged below the insulation layer, and the grounding layer upwards passes through the insulation layer and is provided with an isolated body in an extending way so as to isolate a first circuit area from a second circuit area; the first circuit area and the grounding end of the second circuit area are electrically connected with the grounding layer, and a gap is arranged between the first circuit area and the isolated body; and the radio frequency circuit is arranged on the first circuit area, the foundational frequency circuit is arranged on the second circuit area, and the first metal shielding structure is arranged above the circuit board structure and electrically connected with the isolated body so that the first circuit area and the second circuit area are not easy to interfer by respective noise.

Description

Communication device and board structure of circuit thereof

Technical field

The present invention relates to a kind of communication device and board structure of circuit thereof, particularly relate to and be difficult for the quilt communication device and the board structure of circuit thereof of noise jamming each other between a kind of a plurality of circuit.

Background technology

In the prior art, when a plurality of different circuit were arranged on the circuit board, the circuit of each part all had the metal shielding layer of oneself, and the earth terminal of each circuit all can be connected to metal shielding layer separately, to strengthen the effect of noise isolation.And known metal shielding layer below can adopt intensive wire netting pattern to insert circuit board again with the screening effect between the accentuator.

But along with continuous progress in science and technology; Sophistication is more and more moved towards in requirement to electronic installation, and is should volume little functional again strong, but and but the function that need more and more little when the size of electronic installation more and more for a long time; There have not been enough spaces to let the circuit of each part that the metal shielding layer of oneself is arranged in the electronic installation; Therefore, a plurality of circuit must be shared same metal shielding layer, and each metal shielding layer is also only isolated with a metallic walls.Simultaneously, for reducing the circuit board overall volume, the wire netting of each metal shielding layer below also becomes more sparse.

Yet in the prior art, even if a plurality of circuit is shared an electronic masking layer, the earth terminal of each circuit still connects the metal shielding layer, and therefore, the noise isolation effect between a plurality of circuit reduces, and easily by each other noise jamming.

Summary of the invention

Technical problem to be solved by this invention is: remedy the deficiency of above-mentioned prior art, propose a kind of communication device and board structure of circuit thereof, to solve the problem that is easy to generate noise jamming when a plurality of circuit are shared a metal shielding layer in the available circuit plate to each other.

Technical problem of the present invention solves through following technical scheme:

A kind of board structure of circuit, said board structure of circuit comprise a circuit layer, an insulating barrier and a ground plane, and said circuit layer comprises one first circuit region and a second circuit district; Said insulating barrier is arranged at the below of said circuit layer, and said ground plane is arranged at the below of insulating barrier, and ground plane is upward through insulating barrier and extends a slider to isolate first circuit region and second circuit district; The earth terminal in first circuit region and second circuit district is electrically connected ground plane, and second circuit district and one space, isolated system interval.

Preferably, insulating barrier has a plurality of perforates, and is formed with a conductive structure in each perforate, and said first circuit region and said second circuit fauna see through said a plurality of conductive structures and be electrically connected ground plane.

Preferably, said first circuit region is a kind of in the alloy formed of lead, tin, silver, copper, gold, bismuth, antimony, zinc, nickel, zirconium, magnesium, indium, tellurium, gallium, palladium and aforementioned metal.

Preferably, said second circuit district is a kind of in the alloy formed of lead, tin, silver, copper, gold, bismuth, antimony, zinc, nickel, zirconium, magnesium, indium, tellurium, gallium, palladium and aforementioned metal.

Technical problem of the present invention solves through following further technical scheme:

A kind of communication device comprises a board structure of circuit, one first metallic shield structure, a radio circuit and a baseband circuit; Said board structure of circuit comprises a circuit layer, an insulating barrier and a ground plane; Said circuit layer comprises one first circuit region and a second circuit district; Said insulating barrier is arranged at the below of circuit layer; Said ground plane places the below of insulating barrier, and the ground connection series of strata are upward through insulating barrier and extend a slider to isolate first circuit region and second circuit district; The earth terminal in said first circuit region and this second circuit district is electrically connected said ground plane, and said second circuit district and one space, isolated system interval; The said first metallic shield structure is arranged at the board structure of circuit top, and is electrically connected with said slider, and said radio circuit is arranged at said first circuit region, and said baseband circuit is arranged at the second circuit district.

Preferably, said insulating barrier has a plurality of perforates, and is formed with a conductive structure in each perforate, and first circuit region and second circuit fauna see through said a plurality of conductive structures and be electrically connected ground plane.

Preferably, the position of the worn-out structure of said first metal screen is corresponding to the top of said radio circuit.

Preferably, the worn-out structure of said first metal screen coats said radio circuit.

Preferably, said communication device also comprises the worn-out structure of one second metal screen, is arranged at the top of said baseband circuit.

The beneficial effect of the present invention and prior art contrast is:

(1) communication device of the present invention and board structure of circuit thereof can be electrically connected with the metal shielding layer by the slider of the past circuit layer extension of ground plane, make the noise jamming that is difficult between each circuit by each other.

(2) first circuit region of communication device of the present invention and board structure of circuit thereof and second circuit district; Can be electrically connected ground plane by the conductive structure in the insulating layer perforating; And ground plane and metal shielding layer are electrically connected by slider; And make the metal shielding layer that wire netting must be set, still can reach shield effectiveness, and then effectively reduce the circuit board overall volume that comprises multiple circuit.

Description of drawings

Fig. 1 is the cut-away section sketch map of the board structure of circuit of the specific embodiment of the invention;

Fig. 2 is the sketch map of slider of the board structure of circuit of the specific embodiment of the invention;

Fig. 3 is the vertical view of the board structure of circuit of the specific embodiment of the invention;

Fig. 4 is the exploded view of the communication device of the specific embodiment of the invention;

Fig. 5 is the vertical view of the communication device of the specific embodiment of the invention.

Symbol description

1: circuit layer

11: the first circuit regions

12: the second circuit district

13: the space

2: insulating barrier

3: ground plane

31: slider

4: perforate

41: the radio frequency ground hole

42: the fundamental frequency ground hole

51: radio circuit

52: baseband circuit

Metallic shield in 61: the first

Metallic shield in 62: the second

71: radio noise disturbs

72: the fundamental frequency noise jamming

Embodiment

Below in conjunction with embodiment and contrast accompanying drawing the present invention is explained further details.

As shown in Figure 1, be the cut-away section sketch map of the board structure of circuit of this execution mode.Among Fig. 1, board structure of circuit comprises circuit layer 1, insulating barrier 2 and ground plane 3, and wherein insulating barrier 2 is arranged at the below of circuit layer 1, and ground plane 3 is arranged at the below of insulating barrier 2.Board structure of circuit comprises a plurality of perforates 4, and each perforate 4 has conductive structure, makes circuit layer 1 can see through perforate 4 and is electrically connected with ground plane 3.Wherein, a kind of in the alloy that can form for lead, tin, silver, copper, gold, bismuth, antimony, zinc, nickel, zirconium, magnesium, indium, tellurium, gallium, palladium and aforementioned metal of circuit layer 1.

As shown in Figure 2, be the sketch map of the slider of the board structure of circuit of this execution mode.Among Fig. 2; Ground plane 3 extends upward at least one slider 31; Slider 31 is upward through insulating barrier; And circuit layer 1 divided into first circuit region 11 and second circuit district 12, and the perforate that is positioned at first circuit region 11 is radio frequency ground hole 41, and the perforate that is positioned at second circuit district 12 is a fundamental frequency ground hole 42.In this execution mode, circuit layer 1 is divided into first circuit region 11 and second circuit district 12, but not as limit.

See also Fig. 1 and Fig. 3, wherein Fig. 3 is the vertical view of the board structure of circuit of this execution mode.Having a space 13, the first circuit regions 11 between slider 31 and the second circuit district 12 isolates with the circuit in second circuit district 12.

See also Fig. 4 and Fig. 5, Fig. 4 is the exploded view of the communication device of this execution mode, Fig. 5 be this execution mode the vertical view of communication device.Comprise in the communication device of this execution mode like Fig. 1 to board structure of circuit shown in Figure 3, also comprise a radio circuit 51, a baseband circuit 52, one first metallic shield 61 and one second metallic shield 62, wherein; Radio circuit 51 is arranged on first circuit region 11; Baseband circuit 52 is arranged in the second circuit district 12, and first metallic shield 61 is located on the radio circuit 51, and covers radio circuit 51; The periphery of first metallic shield 61 is posted by slider 31; And be electrically connected with ground plane 3, and second metallic shield 62 is arranged at the top of baseband circuit 52, and cover baseband circuit 52.

Radio noise interference 71 and fundamental frequency noise jamming 72; Because of first metallic shield 61 is electrically connected ground plane 3 by slider 31; And second metallic shield 62 does not contact with slider 31; And first circuit region 11 and second circuit district 12 again because of slider 31 and space 13 each other circuit isolate, thereby make radio noise disturb 71 to be isolated in first metallic shield 61, fundamental frequency noise jamming 72 then is isolated in second metallic shield 62; Make to be difficult for by noise jamming to each other, and make each circuit on the circuit layer 1 all can give full play to its usefulness.

Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, make some substituting or obvious modification under the prerequisite of the present invention design not breaking away from, and performance or purposes are identical, all should be regarded as belonging to protection scope of the present invention.

Claims

1. a communication device comprises a board structure of circuit, one first metallic shield structure, a radio circuit and a baseband circuit, and it is characterized in that: said board structure of circuit comprises a circuit layer, an insulating barrier and a ground plane; Said circuit layer comprises one first circuit region and a second circuit district; Said insulating barrier is arranged at the below of said circuit layer; Said ground plane is arranged at the below of said insulating barrier, and this ground plane is upward through this insulating barrier and extends at least one slider to isolate this first circuit region and this second circuit district; The earth terminal in this first circuit region and this second circuit district is electrically connected said ground plane, and this second circuit district and one space, said isolated system interval; The said first metallic shield structure is arranged at said board structure of circuit top, and is electrically connected with said slider; Said radio circuit is arranged at said first circuit region; Said baseband circuit is arranged at said second circuit district.

2. communication device according to claim 1 is characterized in that: the position of the said first metallic shield structure is corresponding to the top of said radio circuit.

3. communication device according to claim 1 is characterized in that: the said first metallic shield structure coats said radio circuit.

4. communication device according to claim 1 is characterized in that: said communication device also comprises one second metallic shield structure, is arranged at the top of said baseband circuit.