CN2768340Y

CN2768340Y - Electronic installation capable of reducing high-frequency noise interference to disturb telephone receiver

Info

Publication number: CN2768340Y
Application number: CNU200520005125XU
Authority: CN
Inventors: 余敏宏
Original assignee: E Ten Information Systems Co Ltd
Current assignee: E Ten Information Systems Co Ltd
Priority date: 2005-02-21
Filing date: 2005-02-21
Publication date: 2006-03-29
Anticipated expiration: 2015-02-21

Abstract

The utility model relates to an electronic device which is capable of reducing high-frequency noise interference to a telephone receiver. A shielding component having the effect of obstructing and absorbing high-frequency electromagnetic waves is arranged between a telephone receiver and an antenna module in the electronic device. The shielding component is fixedly arranged on the surface of the telephone receiver and electrically connected with an isolating cover, and thus the high-frequency electromagnetic waves generated when the antenna module operates can be absorbed and isolated by the shielding component. Simultaneously, noise or the electromagnetic waves absorbed by the shielding component can be guided to a grounding layer of a main circuit board for isolation.

Description

Can reduce the electronic installation that high-frequency noise disturbs receiver

Technical field

The utility model belongs to a kind of high-frequency noise that reduces to the electronic installation that receiver disturbs, and refers to that especially a kind of can effectively covering comes from the electronic device construction of Anneta module for the high-frequency electromagnetic wave interference that receiver sent.

Background technology

Continuous lifting development along with telecommunications science and technology, occur at present various on the market for the individual portable electron device product of carrying and using, so that provide the user to can be used as the management of personal information, mobile phone communication, all functions such as two-way call and wireless network online, especially extremely pay attention in the industrial and commercial society of efficient and speed at this, by this type of powerful portable type electronic product with the public affair things in the trifling affairs of real-time processing daily life or the work, accepted by the modern gradually, and this series products carrying for the ease of the consumer, and meet the demand of consumer on function of use, designing towards compact in appearance of product, on product content, then provide diversified function to use and use as much as possible, go up most of consumer demand to meet society.So; in the design of Related product; more powerful operation capacity and memory size just must be provided; therefore often need to carry out high-speed computing work at the inner set electronic building brick of this electron-like device; and also can produce many high-frequency electromagnetism involves the excessive of noise relatively in its calculating process; and then influence and interfere with the running of other electronic building brick; the high frequency antenna module of especially relevant communication information transmitting-receiving effect; it is in the middle of the electronic installation running; tend in the process of receiving and transmitting signal; give out a large amount of frequency electromagnetic waves; for other electronic building brick that coordination is in electronic installation inside; usually can cause interference, make this electronic building brick in running, can have problems.

See also Figure 1 and Figure 2, be front view and the internal structure schematic diagram thereof of knowing portable electronic equipment 1 ' outward appearance.As shown in the figure; for the portable electron device 1 ' that generally has communication function; its body 10 ' mainly is to be combined by a loam cake 12 ' and a lower cover 14 ' institute; and be respectively arranged with a main circuit board 20 ' in body 10 ' inside; one LCD Panel 30 '; one metal covering lid 22 '; one receiver 50 ' and an Anneta module 40 '; wherein on the surface of main circuit board 20 ', have and to produce high-frequency noise electronic building brick and circuit part; usually meeting is covered by metal covering lid 22 ' and is covered; and the ground plane of metal covering lid 22 ' and main circuit board 20 ' is and conducts; to stop that a large amount of frequency electromagnetic waves noises that this electronic building brick and circuit is distributed produce interference for other electronic building brick; LCD Panel 30 ' then can be provided with a metal cage 32 '; so that being provided, LCD Panel 30 ' group establishes in it; and when LCD Panel 30 ' is assembled in body 10 ' inside; this cage 32 ' is superimposed with each other with metal covering lid 22 ' surface; make that cage 32 ' can be via the conduction of metal covering lid 22 '; conduct and can be with ground plane equally; receiver 50 ' then is to be arranged at loam cake 12 ' inner surface; so that dispersing of sound to be provided; Anneta module 40 ' then mainly is to correspond to the position of receiver 50 ' and another surface of being arranged at main circuit board 20 ', so that the transmission-receiving function of electronic installation 1 ' signal of communication to be provided.

In the middle of the electronic installation 1 ' internal structure of knowing, because Anneta module 40 ' often is arranged on the main circuit board 20 ', and with the set position of receiver 50 ' at a distance of nearer, make receiver 50 ' tend to be subjected to the interference of high-frequency signal, and in the process of sounding, produce extra noise, and significantly reduced the definition of receiver 50 '.

The utility model content

Main purpose of the present utility model, be to provide a kind of electronic installation that high-frequency noise disturbs receiver that reduces, mainly be by effective isolated mode, make the inner set receiver of electronic installation avoid being subjected to the frequency electromagnetic waves that Anneta module produces and disturb.

Another purpose of the present utility model is to provide a kind of electronic installation that high-frequency noise disturbs receiver that reduces, by intercepting the frequency electromagnetic waves that Anneta module produced, with the definition of effective lifting receiver sounding.

For reaching above-mentioned purpose, the utility model mainly is to be positioned in electronic installation inside to be provided with between receiver and Anneta module to have the shield assemblies of obstruct and absorbing high-frequency electromagnetic wave effect, this shield assemblies is fixedly installed on the surface of receiver, and be an electric connection with cage, the feasible frequency electromagnetic waves that when Anneta module operates, is produced, can be absorbed and isolated by shield assemblies, simultaneously noise or the electromagnetic waveguide that shield assemblies absorbed be given diversion to the ground plane of main circuit board.

Description of drawings

Fig. 1 is the outward appearance front view of the portable electron device known.

Fig. 2 is the internal structure schematic diagram of the portable electron device known.

Fig. 3 can reduce the preferred embodiment internal structure schematic diagram of high-frequency noise to the electronic installation of receiver interference for the utility model.

Fig. 4 is the metal spacing block of the utility model preferred embodiment and the decomposing schematic representation of receiver relative position.

Fig. 5 is the metal spacing block of the utility model preferred embodiment and the combination schematic diagram of receiver relative position.

1 ' electronic installation, 10 ' body

12 ' loam cake, 14 ' lower cover

20 ' main circuit board, 22 ' metal covering lid

30 ' LCD Panel, 32 ' cage

40 ' antenna mould is 50 ' receiver certainly

1 electronic installation, 10 bodies

12 loam cakes, 122 flutings

124 fixing cell body 126 slotted eyes

128 screw seats, 1282 screws

1284 screws, 14 lower covers

20 main circuit boards, 22 metal covering lids

30 LCD Panel, 32 cages

40 Anneta modules, 50 receivers

60 shield assemblies, metal spacing block

62 bodies, 622 bearing surfaces

6222 positioning ends, 624 holders

6242 perforation, 626 extensions

6262 contact-making surfaces, 6264 lugs

Embodiment

See also shown in Figure 3ly, can reduce the internal structure schematic diagram of electronic installation 1 preferred embodiment that high-frequency noise disturbs receiver for the utility model.As shown in the figure, the utility model mainly is to be applied in internal body to have on the product of the portable electron device 1 that LCD Panel is provided with, and general personal digital assistant device (PDA), mobile phone, intelligent mobile phone (PPC), stock handset or the e-dictionary etc. of this electronic installation 1 general reference need the electronic installation product of installing LCD Panel.The body 10 of this electronic installation 1 is to be covered mutually by a

loam cake

12 and 14 of lower covers to form, this electronic installation 1 inside then is respectively arranged with a main circuit board 20, a LCD Panel 30, an Anneta module 40 and a receiver 50, wherein main circuit board 20 is fixedly set in the inside of body 10, and can produce electronic building brick and the circuit part lid that high-frequency noise disturbs at main circuit board 20 upper surface places and establish with a metal covering lid 22, this metal covering lid 22 also needs ground plane (figure does not show) with main circuit board 20 be one to conduct; LCD Panel 30 is mounted between main circuit board 20 and the loam cake 12, and these loam cake 12 surfaces are equipped with a rectangular fluting 122, and correspond to the fluting 122 positions loam cake 12 surface below LCD Panel 30 is set, LCD Panel 30 bottoms then are provided with a cage 32, this cage 32 is made by the metal material with conductivity, make LCD Panel 30 to organize and be located at cage 32 inside, cage 32 then is mounted on metal covering lid 22 set on the inner back of electronic installation 1 and the main circuit board 20 in LCD Panel 30 and is superimposed with each other, make cage 32 equally can be via the conduction of metal covering lid 22 with main circuit board 20 on ground plane be one and conduct; In addition, receiver 50 is to be fixedly set in loam cake 12 inner surface places, the inner surface of loam cake 12 is provided with the fixedly cell body 124 that is hollow in, to provide receiver 50 ccontaining location in it, and the loam cake 12 at opposite position is equipped with a slotted eye 126, and the sound that receiver 50 is sent can be by slotted eye 126 to body 10 outside diffusions; Again, Anneta module 40 is to correspond to receiver 50 positions and be arranged on the opposite side surface of main circuit board 20, with transmission and the receiving function that signal of communication is provided.

The utility model mainly is to be provided with a shield assemblies 60 at

receiver

50 and 40 of Anneta modules, 60 of shield assemblies are made by the material with conductivity, and this shield assemblies 60 is in contact with one another with receiver 50 and cage 32 surfaces respectively, the feasible frequency electromagnetic waves that when Anneta module 40 runnings, is produced, can absorb and isolate by shield assemblies 60, and via the conduction of cage 32, the ground plane of frequency electromagnetic waves that shield assemblies 60 is absorbed or noise guiding main circuit board 20 gives diversion, wherein shield assemblies 60 is that a metal spacing block 60 covers the surface that is arranged at receiver 50 in preferred embodiment, and an end of this metal spacing block 60 needs to be an electric connection with cage 32; In addition, shield assemblies 60 more can replace by a conducting foam, and conducting foam is attached at the surface of receiver 50, and conducting foam need equally with cage 32, metal covering lid 22 or main circuit board 20 wherein any is electric connection.

Other sees also Fig. 4 and shown in Figure 5, is the shield assemblies 60 of this preferred embodiment and the decomposing schematic representation and the constitutional diagram of receiver 50 relative positions.As shown in the figure, shield assemblies 60 is a metal spacing block 60 in this preferred embodiment, this metal spacing block 60 is processed into by a sheet metal, metal spacing block 60 has the body 62 of a strip sheet, and at these body 62 central bearing surfaces 622 that form the general rounded sheet of outward appearances, bearing surface 622 1 sides then stretch out and upwards bend the positioning end 6222 that formation one is vertical configuration, then symmetrical also each extension of 62 liang of end opposite of body has a holder 624, and on each holder 624, respectively be equipped with one the perforation 6242, holder 624 side edge then stretch out and form an extension 626, and upwards be bent to form a contact-making surface 6262 at extension 626 ends, and the microscler lug 6264 that extended internally in the inboard of contact-making surface 6262, but to increase contact area.

In addition, receiver 50 is to be arranged at set fixedly cell body 124 inside of electronic installation 1 loam cake 12 inner surfaces, and be provided with two screw seats 128 in addition at close fixedly cell body 124 outer head covers 12 inner surface places, respectively be provided with a screw 1282 on this screw seat 128, make when metal spacing block 60 desires are assembled, the bearing surface 622 of metal spacing block 60 and 6242 positions that can correspond to receiver 50 and screw seat 128 respectively of boring a hole, with screw 1284 metal spacing block 60 is fixed on the screw seat 128,622 of bearing surfaces are superimposed with each other with receiver 50 surfaces and contact, 6222 of positioning ends and receiver 50 sides are interlockingly connected, and the contact-making surface 6262 of metal spacing block 60 then contacts with cage 32 surfaces of LCD Panel 30 bottoms after metal spacing block 60 assemblings are finished, please consult shown in Figure 3 simultaneously, will be to reach isolation and to absorb from the frequency electromagnetic waves in the external world, and metal hidden from the conduction via cage 32 of the frequency electromagnetic waves of absorption that sheet 60 is accumulated or noise, and by the ground plane institute removal of main circuit board 20.

By above-mentioned explanation as can be known, the utility model can produce the problem of disturbing to receiver 50 for the frequency electromagnetic waves that solution Anneta module 40 is distributed in operation, mainly be to be positioned at 40 settings of receiver 50 and Anneta module to have the shield assemblies 60 of obstruct and absorbing high-frequency electromagnetic wave effect, this shield assemblies 60 mainly is the superimposed surface that is arranged on receiver 50, and for making shield assemblies 60 have the electromagnetic effect of preferable obstruct, shield assemblies 60 needs to be an electric connection with cage 32 in addition, by strengthening the contact area of shield assemblies 60, to promote the electromagnetic efficient of shield assemblies 60 removals.

Claims

1, a kind of high-frequency noise that reduces is characterized in that to the electronic installation that receiver disturbs this electronic installation comprises having:

One body has the loam cake and the lower cover that cover mutually;

One main circuit board is arranged at internal body, and can produce the electronic building brick of noise jamming in this main circuit board surface and the circuit part lid is established with a metal covering lid, and this metal covering lid needs the ground plane with main circuit board be one to conduct;

One LCD Panel, be arranged between main circuit board and the loam cake, this LCD Panel bottom then is provided with a metal cage, and this cage after LCD Panel is mounted on electronic installation inside with main circuit board on set metal covering lid be one and conduct;

One receiver is fixedly set in the upper interior surface place;

One Anneta module corresponds to speaker position and is arranged on the opposite side surface of main circuit board, so that the transmission and the receiving function of communication signal to be provided; And

One shield assemblies is arranged between receiver and Anneta module, and this shield assemblies and receiver and cage surface be in contact with one another, and is an electric connection with cage.

2, the electronic installation that reduces high-frequency noise to the receiver interference as claimed in claim 1, it is characterized in that, described shield assemblies is a metal spacing block, and covers and to be arranged at the receiver surface, and an end of described metal spacing block needs be an electric connection with cage.

3, the high-frequency noise that reduces as claimed in claim 1 is characterized in that to the electronic installation that receiver disturbs described shield assemblies is a conducting foam, and this conducting foam is the surface that is attached at receiver, and this conducting foam needs to be an electric connection with cage.

4, the high-frequency noise that reduces as claimed in claim 1 is characterized in that to the electronic installation that receiver disturbs the inner surface of described loam cake is provided with the fixedly cell body that is hollow in, and receiver is located in it.