CN103957071A - Desktop board type signal shielding device - Google Patents
Desktop board type signal shielding device Download PDFInfo
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- CN103957071A CN103957071A CN201410198787.7A CN201410198787A CN103957071A CN 103957071 A CN103957071 A CN 103957071A CN 201410198787 A CN201410198787 A CN 201410198787A CN 103957071 A CN103957071 A CN 103957071A
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Abstract
The invention discloses a desktop board type signal shielding device. The device comprises a machine shell, a signal shielding module and a power module, wherein the signal shielding module is provided with an antenna, the signal shielding module and the power module are arranged in the machine shell, the appearance of the machine shell is in a flat board shape, the thickness of the machine shell does not exceed 3 cm, the machine shell comprises an upper shell body and a lower shell body, the upper shell body is buckled with the lower shell body, and the signal shielding module and the power module are arranged in space between the upper shell body and the lower shell body. The device is creatively characterized in that due to the desktop board modeling of the shielding device, when the device is used, the device is directly placed on an examination desk for serving as a desktop, goods on the desktop of an examinee cannot be added, on the premise of not occupying the desktop space in the respondence process of the examinee, a plurality of low-power independent shielding units can be contained, and short-distance shielding can be performed on various wireless communication devices possibly carried by the examinee. Shielding is performed on the single examinee, and the shielding effect is good.
Description
Technical field
The present invention relates to a kind of wireless communication signals jamming equipment, particularly a kind of signal shielding device.
Background technology
There are on the market now various cellular phone signal shielding devices and intercom signal shielding device on sale, modal is to use metal shell antenna to leak outside or two kinds of using plastic casing built-in aerial, conventionally be all to hang on the wall in the place that needs shielding, can meet the shielding demand within the scope of certain radius, but such shielding device brings two serious problems, one is that the electromagnetic radiation of shielding device near zone is too high, far beyond required interfering signal power intensity, and distance shielding device Position disturbance signal power strength far away a little less than, sometimes even cannot meet shielding demand, still there is wireless communication facility to work.In examination hall, use in recent years shielding device to become the standard chemoprevention cheating tool in examination hall, but in society, especially examinee and the examinee head of a family are more and more to the worry of shielding device radiation, voice object also occurs again and again, with regard to the shielding device of installing with regard to most examination hall, can not get rid of some examination hall, near the electromagnetic radiation intensity that shields the examinee position of device, surpass regulation in national standard < < electromagnetic radiation protection regulation > > (GB8702-88), the mean value guided restrictions 0.4W/m2 safety value upper limit in the electromagnetic field intensity arbitrary continuation 6min of frequency range 30-3000MHz, really unfair to part examinee, may affect the examinee examinee that normally takes an examination even healthy.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of table panel type signal shielding device shielding for single examinee on the table that arranges is provided.
In order to solve the problems of the technologies described above, the present invention includes casing, signal shielding module and power module, signal shielding module is provided with antenna, signal shielding module and power module are arranged in casing, the profile of described casing is tabular, and casing thickness is no more than 3cm, and casing comprises upper casing and lower casing, upper casing and lower casing are interlocked, and signal shielding module and power module are arranged between upper casing and lower casing in space.
For the ease of supervisor, check operating state of the present invention, the present invention also comprises a relay indicating light, relay indicating light is connected with power module, one end of the leading flank of casing is provided with lamp hole, relay indicating light is inserted in lamp hole, and on casing, on a side adjacent with leading flank and one end adjacent with lamp hole is provided with power module charging socket.
For the ease of heat radiation, the leading flank of described casing is provided with thermal window, and the part of signal shielding module is in thermal window and not stretches out outside housing.
In order to shield multi-signal, described signal shielding module comprises two groups of signal shielding unit, and first group of signal shielding unit is used for shielding mobile phone signal, and second group of signal shielding unit is for shielding the signal except mobile phone signal.
In order to realize shielding multi-signal, described every group of signal shielding unit comprises a plurality of independently channel screen units, and each independent channel screen unit is furnished with an antenna.
In order to improve the safety in utilization of signal shielding module, in described signal shielding module, also comprise high temperature protection control circuit.
During for fear of start, there is spark phenomenon, in described signal shielding module, also comprise dynamically slow executive circuit.
For easy to use, described power module is chargeable lithium cell or dry cell batteries.
For the ease of being fixed on the desk of examination, and make student be difficult for holding discovery, described upper casing and lower casing are connected by screw, and the upper surface of upper casing is smooth flat, and the cap end of screw is located on the bottom surface of lower casing, and the bottom surface of lower casing is provided with a plurality of suckers.
The invention has the beneficial effects as follows: intention point of the present invention is to shield the table panel type moulding of device, during use, be placed directly in to examine and on table, serve as desktop, do not increase examinee's desktop article, do not take examinee and answer under the prerequisite of desk-top space and can hold a plurality of lower powered individual screen unit, the various Wireless Telecom Equipments that may carry examinee closely shield.For single examinee, shield, shield effectiveness is good.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of disassemble state of the present invention;
Fig. 2 is the novel perspective view of this reality;
Fig. 3 is schematic diagram of the present invention;
In figure: 1, upper casing, 2, lower casing, 3, signal shielding unit, 4, signal shielding unit, 5, power module, 6, relay indicating light.
Embodiment
A kind of table panel type signal shielding device as depicted in figs. 1 and 2, comprise casing, signal shielding module, power module 5 and relay indicating light 6, signal shielding module is provided with antenna, signal shielding module and power module 5 are arranged in casing, the profile of casing is tabular, casing thickness is no more than 3cm(and comprises 3cm), casing comprises upper casing 1 and lower casing 2, upper casing 1 and lower casing 2 are interlocked, upper casing 1 and lower casing 2 are connected by screw, the upper surface of upper casing 1 is smooth flat, and the cap end of screw is located on the bottom surface of lower casing 2.The bottom surface of lower casing 2 is provided with a plurality of suckers.Signal shielding module and power module 5 are arranged between upper casing 1 and lower casing 2 in space.Upper casing 1 preferably selects ABS plastic to make with lower casing 2, and housing overall dimension is preferably 60cm * 45cm * 2cm, can be applicable to general single desktop.
One end of the leading flank of casing is provided with lamp hole, and relay indicating light 6 is inserted in lamp hole, and on casing, on a side adjacent with leading flank and one end adjacent with lamp hole is provided with the charging socket of power module 5.On the leading flank of casing, be also provided with thermal window.Relay indicating light 6 is connected with power module 5, and relay indicating light 6 is inserted in lamp hole.The part of signal shielding module is in thermal window and not stretches out outside housing.Signal shielding module in thermal window is for heat radiation, preferably use aluminum thermal fin, aluminum thermal fin is inner to be connected with the heater members heat conduction on screen unit, outside is plane, because being, screen unit only meets single shielding, be all low-power design, caloric value is very little, does not need fin also can meet radiating requirements.
Relay indicating light 6 is contained on one end of leading flank of housing, the operating state that facilitates invigilator personnel film viewing screen to cover device, and examinee cannot see.Thermal window designs on the leading flank of housing, the contiguous leading flank of charging socket, and this design, is all in order to reduce examinee's attention as far as possible.
As shown in Figure 3, signal shielding module comprises that signal shielding unit 3 and signal shielding unit 3,4, the first groups of signal shielding unit are for shielding mobile phone signal, and second group of signal shielding unit 4 is for shielding the signal except mobile phone signal.Every group of signal shielding unit comprises a plurality of independently channel screen units, and each independent channel screen unit is furnished with an antenna.In signal shielding module, also comprise high temperature protection control circuit and dynamically slow executive circuit.Each independently the independent corresponding corresponding band in signal shielding unit shield, in the present embodiment, first group of signal shielding unit 3 comprises the mobile phone shielding group that 800MHz～900MHz screen unit, 1800MHz～1900MHz screen unit, 2100MHz screen unit form, and signal shielding unit 4 comprises that intercom, number that the concealed earphone audio frequency screen unit of 130MHz～170MHz screen unit, 400MHz～470MHz screen unit, 500Hz～3000Hz forms pass and invisible earpiece shielding group.Three channel screen units of first group of signal shielding unit 3 are arranged on a circuit board; three channel screen units of second group of signal shielding unit 4 are arranged on another piece circuit board; on two circuit boards, be all designed with dynamically slow executive circuit; in the time of effectively avoiding starting shooting, there is spark phenomenon in it; and comprise high temperature protection control circuit; realizing shroud module has self-protection function, avoids may damaging or bring various potential safety hazards at bad operational environment.
This specific embodiment is specific embodiment of the present invention, and signal shielding module of the present invention is not the signal shielding module that can only adopt this specific embodiment to describe.Relay indicating light 6, sucker and thermal window neither be necessary.Upper casing must not adopt screw to be connected with lower casing yet.These, all can adopt the technology of existing routine to replace.
Claims (9)
1. a table panel type signal shielding device, comprise casing, signal shielding module and power module, signal shielding module is provided with antenna, signal shielding module and power module are arranged in casing, it is characterized in that: the profile of described casing is tabular, and casing thickness is no more than 3cm, casing comprises upper casing and lower casing, upper casing and lower casing are interlocked, and signal shielding module and power module are arranged between upper casing and lower casing in space.
2. table panel type signal shielding device according to claim 1, it is characterized in that: also comprise a relay indicating light, relay indicating light is connected with power module, one end of the leading flank of casing is provided with lamp hole, relay indicating light is inserted in lamp hole, and on casing, on a side adjacent with leading flank and one end adjacent with lamp hole is provided with power module charging socket.
3. table panel type signal shielding device according to claim 2, is characterized in that: the leading flank of described casing is provided with thermal window, and the part of signal shielding module is in thermal window and not stretches out outside housing.
4. according to the table panel type signal shielding device described in claim 1,2 or 3, it is characterized in that: described signal shielding module comprises two groups of signal shielding unit, first group of signal shielding unit is used for shielding mobile phone signal, and second group of signal shielding unit is for shielding the signal except mobile phone signal.
5. table panel type signal shielding device according to claim 4, is characterized in that, described every group of signal shielding unit comprises a plurality of independently channel screen units, and each independent channel screen unit is furnished with an antenna.
6. table panel type signal shielding device according to claim 5, is characterized in that, in described signal shielding module, also comprises high temperature protection control circuit.
7. table panel type signal shielding device according to claim 6, is characterized in that, also comprises dynamically slow executive circuit in described signal shielding module.
8. table panel type signal shielding device according to claim 7, is characterized in that, described power module is chargeable lithium cell or dry cell batteries.
9. table panel type signal shielding device according to claim 8, is characterized in that: described upper casing and lower casing are connected by screw, and the upper surface of upper casing is smooth flat, and the cap end of screw is located on the bottom surface of lower casing, and the bottom surface of lower casing is provided with a plurality of suckers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198787.7A CN103957071A (en) | 2014-05-13 | 2014-05-13 | Desktop board type signal shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198787.7A CN103957071A (en) | 2014-05-13 | 2014-05-13 | Desktop board type signal shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103957071A true CN103957071A (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410198787.7A Pending CN103957071A (en) | 2014-05-13 | 2014-05-13 | Desktop board type signal shielding device |
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| Country | Link |
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| CN (1) | CN103957071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484303A (en) * | 2017-09-25 | 2017-12-15 | 罗义凌 | A kind of multifunctional lamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201230307Y (en) * | 2008-06-27 | 2009-04-29 | 天津光电聚能专用通信设备有限公司 | Mobile communication interference unit |
| CN102196717A (en) * | 2010-03-17 | 2011-09-21 | 上海良相电子科技有限公司 | Cell phone signal detection shielding system |
| CN202231705U (en) * | 2011-10-18 | 2012-05-23 | 合肥创兆电子科技有限公司 | Portable cell phone signal shielding device |
| CN202364204U (en) * | 2011-12-07 | 2012-08-01 | 天津市英讯科技有限公司 | Examination room wireless signals shielding device |
| CN203813799U (en) * | 2014-05-13 | 2014-09-03 | 济南中经鹿鸣信息科技有限公司 | Desktop plate type signal shielding device |
-
2014
- 2014-05-13 CN CN201410198787.7A patent/CN103957071A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201230307Y (en) * | 2008-06-27 | 2009-04-29 | 天津光电聚能专用通信设备有限公司 | Mobile communication interference unit |
| CN102196717A (en) * | 2010-03-17 | 2011-09-21 | 上海良相电子科技有限公司 | Cell phone signal detection shielding system |
| CN202231705U (en) * | 2011-10-18 | 2012-05-23 | 合肥创兆电子科技有限公司 | Portable cell phone signal shielding device |
| CN202364204U (en) * | 2011-12-07 | 2012-08-01 | 天津市英讯科技有限公司 | Examination room wireless signals shielding device |
| CN203813799U (en) * | 2014-05-13 | 2014-09-03 | 济南中经鹿鸣信息科技有限公司 | Desktop plate type signal shielding device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484303A (en) * | 2017-09-25 | 2017-12-15 | 罗义凌 | A kind of multifunctional lamp |
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Application publication date: 20140730 |
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