CN201781733U - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
- Publication number
- CN201781733U CN201781733U CN2010201060810U CN201020106081U CN201781733U CN 201781733 U CN201781733 U CN 201781733U CN 2010201060810 U CN2010201060810 U CN 2010201060810U CN 201020106081 U CN201020106081 U CN 201020106081U CN 201781733 U CN201781733 U CN 201781733U
- Authority
- CN
- China
- Prior art keywords
- portable terminal
- electromagnetic radiation
- mobile terminal
- main board
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/245—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Abstract
The utility model provides a mobile terminal and aims at solving the problems that the traditional mobile terminal is extremely easy to enhance the radiation interference of a main board on the mobile terminal after PCB (Printed Circuit Board) layers of the main board are reduced, so that the receiving sensitivity of the mobile terminal is lower. The mobile terminal comprises a main board and a shielding layer capable of shielding electromagnetic radiation, wherein the main board is provided with an electromagnetic radiation area which is provided with a ground plane subjected to the cooper exposing treatment; and the shielding layer is electrically connected with the ground plane. In the technical scheme, the ground plane of the electromagnetic radiation area can be electrically connected with the shielding layer after being subjected to the copper exposing treatment, so that the shielding layer can effectively shield the radiation of the electromagnetic radiation area, reduce the radiation interference of the main board and improve the receiving sensitivity of the mobile terminal; and the effect for the mobile terminal reducing the number of the PCB layers is more remarkable.
Description
Technical field
The utility model relates to the terminal equipment technical field, particularly a kind of portable terminal.
Background technology
Continuous development along with the portable terminal technology, simple communication function can not satisfy user's demand, the subsidiary function of portable terminal is constantly being expanded, for example music, take pictures, functions such as shooting, bluetooth, file process and storage, portable terminal also need trend towards miniaturization and cost degradation simultaneously.
In the prior art, reduce the cost of portable terminal by PCB (Printed circuit board, the printed circuit board (PCB)) number of plies that reduces mainboard usually, make portable terminal small volume and less weight more.
But because mobile terminal function is more and more, make that the baseband chip disposal ability of portable terminal need improve constantly on the one hand, the portable terminal dominant frequency also improves constantly; The speed of the transfer of data between baseband processing chip and the various peripheral hardware is also improving constantly on the other hand, finally causes the electromagnetic environment of portable terminal self to become increasingly complex.This has brought challenge just for the hardware fabric swatch, and HW High Way needs protection in order to avoid be subjected to external influence on the one hand, will prevent that also high speed signal from influencing the radio-frequency (RF) index of portable terminal simultaneously.The harmonic components of high speed signal is very abundant, if handle badly, the high order harmonic component that drops on the high speed signal in the mobile terminal communication frequency acceptance band can obviously influence the receiving sensitivity of portable terminal.The high order harmonic component of the clock signal of portable terminal also can influence the receiving sensitivity of portable terminal simultaneously, causes the deterioration of some specific receive channel sensitivity.
As seen, under the function situation how that the PCB number of plies that has reduced the portable terminal mainboard (as having the portable terminal of 4 layers of PCB layer), portable terminal attach, mainboard is stronger for the radiated interference of portable terminal, and the receiving sensitivity of portable terminal is lower.
The utility model content
The utility model embodiment provides a kind of portable terminal, in order to solve existing portable terminal after the PCB number of plies that reduces mainboard, very easily strengthens the radiated interference of mainboard to portable terminal, makes the lower problem of receiving sensitivity of portable terminal.
A kind of portable terminal that the utility model embodiment provides comprises:
Mainboard has the electromagnetic radiation zone, and described electromagnetic radiation zone has through revealing the ground level that copper is handled;
Screen that can electromagnetic radiation shielding is electrically connected at described ground level.
Wherein, the plane conductive material layer of described screen for making by electric conducting material.
Described screen is connected in described ground level by omnidirectional's conducting resinl.
Described electromagnetic radiation zone is: the high order harmonic component radiation areas of high speed signal.
In the technical scheme that the utility model embodiment provides, the ground level in electromagnetic radiation zone is through after revealing the copper processing, can realize electric connection with screen, make the effectively radiation in electromagnetic radiation shielding zone of screen, reduce the radiated interference of mainboard, improved the receiving sensitivity of portable terminal; This effect is more remarkable for the portable terminal that has reduced the mainboard PCB number of plies.
Description of drawings
Fig. 1 is the schematic diagram that the ground level 11 of portable terminal among the utility model embodiment is handled through dew copper;
Fig. 2 A is the rearview of the utility model embodiment portable terminal;
Fig. 2 B is the end view of the utility model embodiment portable terminal.
Embodiment
In order to solve the problem that prior art exists, the utility model embodiment provides a kind of portable terminal.
In the technical scheme that the utility model embodiment provides, the ground level in electromagnetic radiation zone is through after revealing the copper processing, can realize electric connection with screen, make the effectively radiation in electromagnetic radiation shielding zone of screen, reduce the radiated interference of mainboard, improved the receiving sensitivity of portable terminal; This effect is more remarkable for the portable terminal that has reduced the mainboard PCB number of plies.
As shown in Figure 1, the portable terminal that the utility model embodiment provides comprises:
In this portable terminal, the ground level 11 in electromagnetic radiation zone is through after revealing copper and handling, and can realize the electric connection with screen 13, makes the effectively radiation in electromagnetic radiation shielding zone of screen 13, reduce the radiated interference of mainboard, improved the receiving sensitivity of portable terminal; This effect is more remarkable for the portable terminal that has reduced the mainboard PCB number of plies.
Wherein, screen 13 can be the plane conductive material layer of being made by electric conducting material.Wherein, electric conducting material can be conductive fabric, Copper Foil, aluminium foil, conductive paper etc.
In addition, the electromagnetic radiation zone can also be the high order harmonic component radiation areas of high speed signal.At this moment, screen 13 can effectively shield the high order harmonic component radiation of high order harmonic component radiation areas, because high order harmonic component radiation meeting obviously influences the receiving sensitivity of portable terminal, therefore, when screen 13 shielding be the high order harmonic component radiation of high order harmonic component radiation areas the time, can greatly improve the receiving sensitivity of portable terminal.
Wherein, the method for determining the electromagnetic radiation zone is:
By special radiation detecting instrument whole mainboard is scanned, confirm electromagnetic radiation source circuit or parts, detect the electromagnetic radiation zone; Perhaps the high speed signal path that may produce electromagnetic radiation and parts are implemented means such as removal, shielding, software function stop and detecting influence, determine the electromagnetic radiation zone according to influence to receiving sensitivity.
The above is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. a portable terminal is characterized in that, comprising:
Mainboard has the electromagnetic radiation zone, and described electromagnetic radiation zone has through revealing the ground level that copper is handled;
Screen that can electromagnetic radiation shielding is electrically connected at described ground level.
2. portable terminal as claimed in claim 1 is characterized in that,
The plane conductive material layer of described screen for making by electric conducting material.
3. portable terminal as claimed in claim 1 or 2 is characterized in that,
Described screen is connected in described ground level by omnidirectional's conducting resinl.
4. portable terminal as claimed in claim 1 is characterized in that,
Described electromagnetic radiation zone is: the high order harmonic component radiation areas of high speed signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201060810U CN201781733U (en) | 2010-01-25 | 2010-01-25 | Mobile terminal |
| PCT/CN2010/074028 WO2011088655A1 (en) | 2010-01-25 | 2010-06-17 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201060810U CN201781733U (en) | 2010-01-25 | 2010-01-25 | Mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781733U true CN201781733U (en) | 2011-03-30 |
Family
ID=43794929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201060810U Expired - Lifetime CN201781733U (en) | 2010-01-25 | 2010-01-25 | Mobile terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201781733U (en) |
| WO (1) | WO2011088655A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8680406B2 (en) | 2011-09-07 | 2014-03-25 | Trend Power Limited | Radiation-proof laminate for electronic devices and method for embedding the same into a case |
| CN107221765A (en) * | 2017-06-23 | 2017-09-29 | 上海传英信息技术有限公司 | Electronic component ground structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2202695B (en) * | 1987-03-20 | 1991-10-02 | Ibm | Computer system accepting feature cards |
| CN2074930U (en) * | 1990-08-28 | 1991-04-10 | 杨军华 | Computer radiation-resistance mask |
| CN2453647Y (en) * | 2000-10-17 | 2001-10-10 | 林德政 | Electromagnetic radiation shield structure for printing circuit plate |
-
2010
- 2010-01-25 CN CN2010201060810U patent/CN201781733U/en not_active Expired - Lifetime
- 2010-06-17 WO PCT/CN2010/074028 patent/WO2011088655A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8680406B2 (en) | 2011-09-07 | 2014-03-25 | Trend Power Limited | Radiation-proof laminate for electronic devices and method for embedding the same into a case |
| CN107221765A (en) * | 2017-06-23 | 2017-09-29 | 上海传英信息技术有限公司 | Electronic component ground structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011088655A1 (en) | 2011-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |