CN205546408U - Security installations electromagnetic signal shield assembly - Google Patents

Security installations electromagnetic signal shield assembly Download PDF

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Publication number
CN205546408U
CN205546408U CN201620092123.7U CN201620092123U CN205546408U CN 205546408 U CN205546408 U CN 205546408U CN 201620092123 U CN201620092123 U CN 201620092123U CN 205546408 U CN205546408 U CN 205546408U
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CN
China
Prior art keywords
side door
plate
door plant
electromagnetic
safety inspection
Prior art date
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Active
Application number
CN201620092123.7U
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Chinese (zh)
Inventor
周云志
张富顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Dunwei Tech Co ltd
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Shenzhen Dunwei Tech Co ltd
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Priority to CN201620092123.7U priority Critical patent/CN205546408U/en
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Abstract

The utility model discloses a security installations electromagnetic signal shield assembly. It includes left side door plant, the right side door plant of making by metal material, is provided with the mainframe box between left side door plant and the right side door plant, safety inspection door that left side door plant, right side door plant and mainframe box constitute, the medial surface of left side door plant go up or the medial surface of right side door plant on be provided with and launch the big coil of electromagnetic, big coil inside is arranged to have and to launch the little coil of electromagnetic equally. After adopting foretell structure, utilize metal material's electromagnetic shield characteristic, make the safety inspection door become a confined magnetic field environment, do not receive the influence of external metallic object or electromagenetic wave radiation, thoroughly shielded the interference of external electromagnetic wave signal, make the safety inspection door not receive the influence of applied environment, can all normal use at the environment of any complicacy, simultaneously, still improve the detection precision of safety inspection door, still improved the steadiness of safety inspection door in addition.

Description

Rays safety detection apparatus electromagnetic signal screening arrangement
Technical field
The utility model relates to a kind of rays safety detection apparatus, specifically a kind of rays safety detection apparatus electromagnetic signal screening arrangement.
Background technology
At present, the energising of existing detector gate commonly used wire coil produces magnetic field, whether current personnel can be carried metal contraband to detect, but the detector gate of this version is higher to environmental requirement to using, neighbouring can not have metal object, it is impossible to has ultrasonic equipment, Electromagnetic Launching machine etc., (if there being people to carry metal object, cutting will be caused in original detector gate magnetic field, thus produce warning) bring very big inconvenience to user.
For above puzzlement, have at present and use DSP signal processing technology to carry out disturbing signal filtering to process or two pieces of door-plates are outside about detector gate inner side coating graphite carries out shielding and disturbs signal transacting;But, environment around remains and is continually changing, and these technology still fundamentally 100% can not solve above problem.
Summary of the invention
The technical problems to be solved in the utility model is to provide one can thoroughly shield interference signal, makes the rays safety detection apparatus electromagnetic signal screening arrangement that rays safety detection apparatus can normally use at any complex environment.
In order to solve above-mentioned technical problem, rays safety detection apparatus electromagnetic signal screening arrangement of the present utility model, including the left side door-plate made by metal material, right side door-plate, between left side door-plate and right side door-plate, it is provided with mainframe box, the detector gate that left side door-plate, right side door-plate and mainframe box are constituted.
Being provided with launching the big coil of electromagnetic wave on the inner side end of described left side door-plate or on the inner side end of right side door-plate, the internal arrangement of big coil has the little coil that can launch electromagnetic wave equally.
Described mainframe box is arranged between left side door-plate and the top of right side door-plate.
After using above-mentioned structure, the coil that can launch electromagnetic wave of the setting on the door-plate made due to the metal material arranged and the inner side end of door-plate, utilize the electromagnetic shielding characteristic of metal material, detector gate is made to become a magnetic field environment closed, do not affected by extraneous metal object or electromagenetic wave radiation, thoroughly shield the interference (or interference of external object electromagnetic wave signal own to detector gate) of external electromagnetic ripple signal, make detector gate not affected by applied environment, can normally use at any complex environment;Meanwhile, also improve the detection accuracy of detector gate, additionally improves the steadiness of detector gate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model rays safety detection apparatus electromagnetic signal screening arrangement;
Fig. 2 is the side-looking structural representation of door-plate in the utility model rays safety detection apparatus electromagnetic signal screening arrangement.
Detailed description of the invention
Below in conjunction with the accompanying drawings with detailed description of the invention, rays safety detection apparatus electromagnetic signal screening arrangement of the present utility model is described in further detail.
As shown in the figure, rays safety detection apparatus electromagnetic signal screening arrangement of the present utility model, including the left side door-plate 1 made by metal material, right side door-plate 2, certainly also include that mainboard (common knowledge), the door-plate made due to metal material and traditional metal material have the advantages that electric conductivity is high, resistivity is little;Metal can produce the effects such as reflection, absorption, and counteracting to electromagnetic wave;Therefore its door-plate made can make the magnetic line of force be limited in inside shield, prevents the another side being diffused into shield from going;It is provided with mainframe box 3 between left side door-plate and right side door-plate, mainframe box 3 is arranged between left side door-plate 1 and the top of right side door-plate 2, left side door-plate 1, the detector gate 4 that right side door-plate 2 and mainframe box 3 are constituted, it is provided with launching the big coil 5 of electromagnetic wave on the inner side end of left side door-plate 1 or on the inner side end of right side door-plate 2, the internal arrangement of big coil 5 has the little coil 6 that can launch electromagnetic wave equally, owing to the mainboard of detector gate only considers an electromagnetic field environment, can accomplish electromagnetic wave signal to preset accurately, as long as signal value is inconsistent, i.e. make safety check to report to the police, precision is greatly improved;Simultaneously because the characteristic of metal, have solderable, can polish, the characteristic such as sprayable, therefore detector gate can be made the most attractive in appearance.
Its principle is as follows:
When big coil 5, little coil 6 are arranged on the door-plate of right side, when big coil 5, little coil 6 produce electromagnetic field and can be blocked shielding by left side door-plate, and metal is encountered the electromagnetic field of change, will be produced eddy current;According to Lenz's law (faradic magnetic field hinders always and causes the change of faradic magnetic flux), eddy current always stops the change of electromagnetic field, i.e. consumes the energy of electromagnetic field.Therefore cannot continue to produce magnetic field, thus the continuation having blocked electromagnetic wave is propagated;Therefore, the electromagnetic wave of detector gate can not be radiated outside detector gate through the end face outside of left side door-plate 1, in like manner, electromagnetic wave outside detector gate can not reach, through the end face outside of left side door-plate 1, the magnetic field affecting detector gate inside detector gate, then, between left side door-plate and right side door-plate, i.e. define in detector gate one stable and not by the magnetic field environment of external interference, when this magnetic field environment is by cutting damage, data acquisition card collects information, it is transferred to the mainboard of detector gate, detector gate makes alarm, thus play the function of safety check.

Claims (3)

1. a rays safety detection apparatus electromagnetic signal screening arrangement, it is characterized in that: include left side door-plate (1), the right side door-plate (2) made by metal material, mainframe box (3), the detector gate (4) that described left side door-plate (1), right side door-plate (2) and mainframe box (3) are constituted it is provided with between described left side door-plate and right side door-plate.
2. according to the rays safety detection apparatus electromagnetic signal screening arrangement described in claim 1, it is characterized in that: being provided with launching the big coil (5) of electromagnetic wave on the inner side end in described left side door-plate (1) or on the inner side end of right side door-plate (2), the internal arrangement of described big coil (5) has the little coil (6) that can launch electromagnetic wave equally.
3. according to the rays safety detection apparatus electromagnetic signal screening arrangement described in claim 1, it is characterised in that: described mainframe box (3) is arranged between left side door-plate (1) and the top of right side door-plate (2).
CN201620092123.7U 2016-01-30 2016-01-30 Security installations electromagnetic signal shield assembly Active CN205546408U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620092123.7U CN205546408U (en) 2016-01-30 2016-01-30 Security installations electromagnetic signal shield assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620092123.7U CN205546408U (en) 2016-01-30 2016-01-30 Security installations electromagnetic signal shield assembly

Publications (1)

Publication Number Publication Date
CN205546408U true CN205546408U (en) 2016-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620092123.7U Active CN205546408U (en) 2016-01-30 2016-01-30 Security installations electromagnetic signal shield assembly

Country Status (1)

Country Link
CN (1) CN205546408U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108445543A (en) * 2018-03-16 2018-08-24 爱德森(厦门)电子有限公司 A kind of raising electromagnetic detection detector gate sensitivity and anti-interference ability device and method
CN113747775A (en) * 2020-05-29 2021-12-03 同方威视技术股份有限公司 Radio frequency identification device for preventing electromagnetic interference between security inspection channels and method for manufacturing shielding plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108445543A (en) * 2018-03-16 2018-08-24 爱德森(厦门)电子有限公司 A kind of raising electromagnetic detection detector gate sensitivity and anti-interference ability device and method
CN113747775A (en) * 2020-05-29 2021-12-03 同方威视技术股份有限公司 Radio frequency identification device for preventing electromagnetic interference between security inspection channels and method for manufacturing shielding plate

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