CN102468859B

CN102468859B - Communication device of reducing double-layer metal coupling current

Info

Publication number: CN102468859B
Application number: CN201010535200.9A
Authority: CN
Inventors: 邱建评; 翁丰仁; 吴晓薇; 颜一平
Original assignee: Quanta Computer Inc
Current assignee: Quanta Computer Inc
Priority date: 2010-11-03
Filing date: 2010-11-03
Publication date: 2014-02-26
Anticipated expiration: 2030-11-03
Also published as: CN102468859A

Abstract

The invention discloses a communication device of reducing double-layer metal coupling current. The communication device comprises an antenna, a first shell and a second shell. The first shell comprises a first metal layer and a first non-metal layer; the first metal layer comprises a plurality of first gaps which are concavely arranged; the first non-metal layer is filled into the first gaps; the second shell comprises a second metal layer and a second non-metal layer; the second metal layer comprises a plurality of second gaps which are concavely arranged; the second non-metal layer is filled into the second gaps. Therefore, the forming of the interference coupling current can be reduced and communication function of the antenna can be avoided when the first shell coincides with the second shell.

Description

Reduce the communication device of double-layer metal coupling current

Technical field

The present invention relates to a kind of communication device, particularly relate to a kind of communication device that reduces double-layer metal coupling current.

Background technology

Consult Fig. 1, it is a kind of portable communication device 9, for example: mobile phone or notebook computer, comprise a upper shell 91 and relatively upper shell 91 doublings lift the lower house 92 closing, upper shell 91 is provided with display screen, on lower house 92 surfaces, be provided with the elements such as button, in the inside of lower house 92, be provided with a concealed antenna 93 being located at for the circuit board (not shown) and of layout circuit below the pivot end of close lower house 92 of circuit board.

And along with portable communication device 9 is compact and the demand of large screen, it is also more general as shell structure that the material of this class of use almag replaces thicker plastic cement material, also because be metal material, so just derive the problem of many communication aspects.

Consult Fig. 2, because the upper shell 91 of portable communication device 9 and lower house 92 adopt the design of metal materials, once but upper shell 91 and lower house 92 are closed, double layer of metal structure will cause the phenomenon of current coupling, make the communication effect of antenna 93 be subject to impact to a certain extent, for example: very two metal levels near (0.15mm) are similar to capacitance structure, will be coupled out unnecessary electric current, and cause the gain reduction of antenna 93.

Summary of the invention

Therefore, the object of the present invention is to provide a kind of communication device of reduction double-layer metal coupling current of the mechanism's intensity that reduces the current coupling phenomenon that double layer of metal structure causes and manage to keep basic.

So the communication device that the present invention reduces double-layer metal coupling current comprises antenna, one first housing and one second housing with communication function.

This first housing comprises a first metal layer and one first non-metallic layer, and this first metal layer has most the first gaps that are arranged with, and this first non-metallic layer is filled the plurality of the first gap.

This second housing comprises one second metal level and one second non-metallic layer, this second metal level has most the second gaps that are arranged with, this second non-metallic layer is filled the plurality of the second gap, thus, the formation that reduces interference and coupling electric current at this first housing and this second housing when superimposed is to avoid affecting the communication function of this antenna.

The effect that the present invention reduces the communication device of double-layer metal coupling current is, the current coupling phenomenon causing to reduce double layer of metal structure by most first, second gaps that are arranged with are set at first, second metal level, and fill the plurality of first, second gap, mechanism's intensity of the device of also keeping in communication with first, second non-metallic layer.

Accompanying drawing explanation

Fig. 1 is a schematic diagram, and it illustrates that existing portable communication device raising state;

Fig. 2 is a schematic diagram, and it illustrates that existing portable communication device is at closure state;

Fig. 3 is a schematic diagram, and its communication device that preferred embodiment of the present invention is described is being raised state;

Fig. 4 is a schematic diagram, and its communication device that preferred embodiment of the present invention is described is at closure state;

Fig. 5 is a schematic diagram, and the concave surface in its each first gap of explanation and the concave surface in each the second gap are probably the arc surfaced of indent;

Fig. 6 is a schematic diagram, and the concave surface in its each first gap of explanation and the concave surface in each the second gap are probably the triangle of indent;

Fig. 7 is a schematic diagram, and the concave surface in its each first gap of explanation and the concave surface in each the second gap are probably the trapezoidal of indent;

Fig. 8 is a curve chart, and its explanation adopts as the aerial voltage standing-wave ratio data measurement of the shell structure of Fig. 4;

Fig. 9 is a field pattern figure, the gapless aerial radiation field pattern that its explanation is 849MHz in frequency of operation;

Figure 10 is a field pattern figure, the gapped aerial radiation field pattern that its explanation is 849MHz in frequency of operation;

Figure 11 is a field pattern figure, the gapless aerial radiation field pattern that its explanation is 1910MHz in frequency of operation; And

Figure 12 is a field pattern figure, the gapped aerial radiation field pattern that its explanation is 1910MHz in frequency of operation.

Main element symbol description

Existing

9 portable communication devices

91 upper shells

92 lower houses

93 antennas

The present invention

100 communication devices

1,1 ', 1 ", 1 " ' first housing

11 the first metal layers

110 engage space

111,111 ', 111 ", 111 " ' first gap

12 first non-metallic layers

2,2 ', 2 ", 2 " ' second housing

21 second metal levels

211,211 ', 211 ", 211 " ' second gap

22 second non-metallic layers

3 antennas

Embodiment

About aforementioned and other technology contents, feature and effect of the present invention, in the detailed description in following cooperation with reference to a plurality of preferred embodiments of accompanying drawing, can clearly present.Before the present invention is described in detail, be noted that in the following description content, similarly element is to represent with identical numbering.

Consult Fig. 3 and Fig. 4, in preferred embodiment of the present invention, communication device 100 is folding type electronic products, for example: mobile phone or notebook computer, comprise antenna 3, one first housing 1 and one second housing 2 with communication function, between the first housing 1 and the second housing 2, be the state of raising (as Fig. 3), and during closure state (as Fig. 4), the first housing 1 and the second housing 2 adjacent antennas 3.

Consult Fig. 4, the first housing 1 comprises a first metal layer 11 and one first non-metallic layer 12; The first 11 layers, metal is almag material for example, and surface is formed with most the first gaps 111 that are arranged with, and the first non-metallic layer 12 is for example pottery or plastic cement material, fills and fill the plurality of the first gap 111.

Same, the second housing 2 comprises one second metal level 21 and one second non-metallic layer 22; The second metal level 22 is almag materials for example, and surface is formed with most the second gaps 211 that are arranged with, and the second non-metallic layer 22 is for example pottery or plastic cement material, fills and fill the plurality of the second gap 211.

Specifically, between the first housing 1 and the second housing 2, have a joint space 110, the concave surface in the concave surface in each first gap 111 and each the second gap 211 is to be asymmetricly crisscross arranged along engaging space 110; The concave surface in the first gap 111 of the first metal layer 11 and the second gap 211 of the second metal level 21 is the convexs that are generally indent, and the first non-metallic layer 12 is first gaps 111 that fill the first metal layer 11, and the second non-metallic layer 22 is second gaps 211 that fill the second metal level 21.

Principle of the present invention is: the dentalation forming by the first gap 111 being arranged with and the second gap 211 being arranged with, destroy the parallel class capacitance structure of double-metal layer originally, therefore at the first housing 1 and the second housing 2 when superimposed, just can reduce the formation of interference and coupling electric current, avoid affecting the communication function of antenna 3.

It is noted that, because the first housing 1 and the second housing 2 inside are provided with the elements such as display screen and keyboard, the structural strength of the side of the first housing 1 and the second housing 2 is also just comparatively weak, and this is also for how the first non-metallic layer 12 and the second non-metallic layer 22 increase the reason of structural strength.

As shown in table 1, the antenna radiation efficiency of more gapped (clearance height 3mm) and gapless (the distance 0.15mm that two metal shells are close to each other), can be observed and gappedly than gapless aerial radiation benefit, promote about 3dB.

Table 1

Below introduce respectively various may kenels, it should be noted that, the class zigzag of other rules or irregular type also can, due to of a great variety, at this, will not enumerate.

Consult Fig. 5, the concave surface in the concave surface in each first gap 111 ' of the first housing 1 ' and each second gap 211 ' of the second housing 2 ' is generally the arc surfaced of indent.Consult Fig. 6, the first housing 1 " each first gap 111 " concave surface and the second housing 2 " each second gap 211 " concave surface be generally the triangle of indent.Consult Fig. 7, the first housing 1 " concave surface and second housing 2 of ' each first gap 111 " ' " concave surface of ' each second gap 211 " ' is generally the trapezoidal of indent.Consult Fig. 8, to adopt as the shell structure of Fig. 4 and without adopting as aerial voltage standing-wave ratio (VSWR) data and curves of the shell structure of Fig. 4, known in figure, the communication device 100 of the gapped structure of the present invention is better than radiation benefit very close to each other in the radiation benefit of frequency band range 824Hz to 894Hz and 1710Hz to 1970Hz.

Consult Fig. 9 and Figure 10, the gapless aerial radiation field pattern figure (as Fig. 9) that is 849MHz in frequency of operation, aerial radiation field pattern figure comparative result (as Figure 10) with same operation frequency but gapped design, the aerial radiation field pattern figure of gapped design is more full, therefore has preferably radiation benefit.

Consult Figure 11 and Figure 12, the gapless aerial radiation field pattern figure (as Figure 11) that is 1910MHz in frequency of operation, aerial radiation field pattern figure comparative result (as Figure 12) with same operation frequency but gapped design, the aerial radiation field pattern figure of gapped design is more full, therefore has preferably radiation benefit.

In sum, the effect that the present invention reduces the communication device 100 of double-layer metal coupling current is, the current coupling phenomenon causing to reduce double layer of metal structure by most the first gaps 111 that are arranged with, the second gap 211 are set at the first metal layer 11, the second metal level 21, and fill the plurality of the first gap 111, the second gap 211 with the first non-metallic layer 12, the second non-metallic layer 22, also the mechanism's intensity of device 100 of just keeping in communication, therefore really can reach object of the present invention.

Above-described is only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence of generally doing according to the claims in the present invention and invention description content changes and modifies, and all still remains within the scope of the patent.

Claims

1. a communication device that reduces double-layer metal coupling current, it comprises:

Antenna, has communication function;

The first housing, contiguous this antenna, comprises the first metal layer and the first non-metallic layer, and this first metal layer has most the first gaps that are arranged with, and this first non-metallic layer is filled the plurality of the first gap; And

The second housing, contiguous this antenna, comprise the second metal level and the second non-metallic layer, this second metal level has most the second gaps that are arranged with, this second non-metallic layer is filled the plurality of the second gap, thus, the formation that reduces couple current at this first housing and this second housing when superimposed is to avoid affecting the communication function of this antenna.

2. according to the communication device of reduction double-layer metal coupling current claimed in claim 1, wherein, respectively the concave surface in this first gap and respectively the concave surface in this second gap be to be asymmetricly crisscross arranged.

3. according to the communication device of reduction double-layer metal coupling current claimed in claim 2, wherein, respectively this first gap and respectively the concave surface in this second gap be " protruding " font, arc surfaced, the triangle or trapezoidal that is generally indent.

4. according to the communication device of the reduction double-layer metal coupling current described in claim 1,2 or 3, wherein, this first non-metallic layer and this second non-metallic layer are respectively used to fill the first gap of this first metal layer and the second gap of this second metal level.

5. according to the communication device of the reduction double-layer metal coupling current described in claim 1,2 or 3, wherein, this first non-metallic layer and/or this second non-metallic layer are plastic cement or ceramic material.