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Electromagnetically-shielding sound-insulating protecting window applicable to electromagnetically-shielded room

A technology of electromagnetic shielding and electromagnetic shielding doors, which is applied in the direction of soundproof doors/windows, doors for defense against harmful radiation, ventilation layout, etc., can solve the problems of induced current interference noise, increased construction period, increased cost, etc., to achieve good electromagnetic shielding, Ease of use and reasonable structure

Inactive Publication Date: 2014-12-03
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) When the energized wire vibrates, it will cut the geomagnetic field and other magnetic force lines, and an induced current will be generated to form interference noise, which will destroy the normal operation of the instrument
[0005] (2) Almost all materials have a certain degree of piezoelectric effect. When the stress generated by external vibration and acoustic wave interference is applied to these materials, the originally insulating material will also become a certain amount of piezoelectric effect due to the generation of piezoelectric charges. Noise source of charge that interferes with the normal operation of the instrument
[0006] (3) In all circuit connections, a large number of soldering operations are required
[0007] (4) According to the quantum tunneling principle of STM, it can be known that the tunneling distance between the probe / sample is only about 0.5 nanometers, and the change of the tunnel junction distance of 0.1 nanometers will cause about 10 times the change of the tunneling current, so a slight external Acoustic disturbance will also cause fatal harm to the measured signal
But this will also greatly increase the cost, and lead to a significant reduction in the utilization of laboratory space and a substantial increase in the construction period

Method used

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  • Electromagnetically-shielding sound-insulating protecting window applicable to electromagnetically-shielded room
  • Electromagnetically-shielding sound-insulating protecting window applicable to electromagnetically-shielded room
  • Electromagnetically-shielding sound-insulating protecting window applicable to electromagnetically-shielded room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, a basic type of electromagnetic shielding soundproof protective window suitable for electromagnetic shielding rooms,

[0033] Such as figure 1 and image 3 As shown, the wall 9 is provided with a cut-off waveguide ventilation window 2, and the outside or inside of the cut-off waveguide ventilation window is equipped with an electromagnetic shielding door 5 matching its cross-sectional size; the length and width of the electromagnetic shielding door are equal to the described Cut off the length and width dimensions of the waveguide ventilation window, and the window frame 6 of the cutoff waveguide ventilation window is used as the doorframe of the electromagnetic shielding door. And the window frame is provided with the main metal inserting knife 3 and the main reed 11 matching secondary metal inserting knife 4 and auxiliary reed 10 around the electromagnetic shielded door body. The conductive sealing strip 8 that matches the end of the knife. The fixing...

Embodiment 2

[0037] Embodiment 2, an electromagnetic shielding and soundproof protective window suitable for electromagnetic shielding rooms with strong adaptability to installation conditions,

[0038] Such as figure 2 and Figure 4 As shown, the wall 9 is provided with a cut-off waveguide ventilation window 2, and an electromagnetic shielding door 5 matching its cross-sectional size is installed on the outside or inside of the cut-off waveguide ventilation window; the length and width of the electromagnetic shielding door are larger than the above-mentioned When the length and width dimensions of the cut-off waveguide ventilation window, the outside of the window frame 6 of the cut-off waveguide ventilation window can be additionally provided with a door frame 12 matching the size of the electromagnetic shielding door, so that the doorframe installation problem corresponding to the electromagnetic shielding door can be solved, and The door frame is provided with the secondary metal ins...

Embodiment 3

[0040] Embodiment 3, an electromagnetic shielding and soundproof protective window suitable for an electromagnetic shielding room with enhanced noise reduction effect.

[0041] Such as figure 1 and image 3 As shown, the wall 9 is provided with a cut-off waveguide ventilation window 2, and an electromagnetic shielding door 5 matching its cross-sectional size is installed on the outside or inboard of the cut-off waveguide ventilation window; the length and width of the electromagnetic shielding door are equal to the described When the length and width dimensions surrounded by the inner edge of the cut-off waveguide ventilation window sash frame, the window frame 6 of the cut-off waveguide ventilation window is used as the doorframe of the electromagnetic shielding door, and the window frame is provided with the main metal plate around the electromagnetic shielding door body. Insert knife 3 and main reed 11 matching auxiliary metal insert 4 and auxiliary reed 10, on the door bo...

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Abstract

The invention discloses an electromagnetically-shielding sound-insulating protecting window applicable to an electromagnetically-shielded room and aims to provide the electromagnetically-shielding sound-insulating protecting window which is reasonable in structure, excellent in performance and applicable to the electromagnetically-shielded room. The window comprises a cut-off waveguide ventilating window and an electromagnetically-shielding door with dimensions matched with those of the cut-off waveguide ventilating window, wherein the electromagnetically-shielding door is installed on the outer side or the inner side of the cut-off waveguide ventilating window and combined with the cut-off waveguide ventilating window for use. The cut-off waveguide ventilating window and the electromagnetically-shielding door are different in electromagnetic shielding principle, so that the better electromagnetic shielding effect can be realized when the cut-off waveguide ventilating window and the electromagnetically-shielding door are combined for use; the electromagnetically-shielding sound-insulating protecting window is modified on the basis of an electromagnetically-shielding door which is usually very thick and heavy, so that the better sound-insulating effect can be realized; the electromagnetically-shielding door can be opened and closed, so that the cut-off waveguide ventilating window has the flexible ventilation performance. In short, compared with the prior art, the electromagnetically-shielding sound-insulating protecting window has the advantages of simple structure, small size, convenience in use and low cost.

Description

Technical field: [0001] The invention relates to the technical field of electromagnetic shielding rooms, in particular to an electromagnetic shielding and soundproof protective window which is suitable for electromagnetic shielding rooms and is used in combination with electromagnetic shielding doors and cut-off waveguide ventilation windows. Background technique: [0002] With the increasing precision and sensitivity of today's signal generation and transmission equipment, small external electromagnetic or mechanical noise interference will cause even fatal damage to the measurement itself. For example, for the Scanning Tunneling Microscope (STM), which plays an important role in the field of micro-nano technology manufacturing and surface science, and won the Nobel Prize in Physics for the inventor of the instrument, its working signal is the magnitude of nanoampere (nA), internal resistance at 10 9 For a very weak signal in the order of ohms (GΩ), a little bit o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B5/18E06B5/20E06B7/02E06B7/16
Inventor 李全锋秦朝朝蒋玉荣李全利赵彩云
Owner HENAN NORMAL UNIV
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