CN218959386U - Electromagnetic shielding chamber with layered protection function - Google Patents
Electromagnetic shielding chamber with layered protection function Download PDFInfo
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- CN218959386U CN218959386U CN202223440609.XU CN202223440609U CN218959386U CN 218959386 U CN218959386 U CN 218959386U CN 202223440609 U CN202223440609 U CN 202223440609U CN 218959386 U CN218959386 U CN 218959386U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses an electromagnetic shielding chamber with a layered protection function, which comprises an assembly chamber and a protection unit; the assembly room: the left side in the door frame arranged at the right lower corner of the front surface is hinged with a first electromagnetic shielding door through a hinge, the inner wall surface of the assembly room is provided with a first shielding layer, the bottom wall surface of the first shielding layer is provided with an evenly distributed antistatic floor, and the upper surface of the antistatic floor arranged at the right front corner is provided with a power filter; protection unit: including L type backup pad, second electromagnetic shield door and shielding layer two, L type backup pad sets up in the inner chamber right front angle of assembly room, and this layering safeguard function's electromagnetic shield room is set up by the cooperation of two electromagnetic shield doors, even is testing in the electromagnetic shield room, also can be free business turn over, has reached electromagnetic shield room layering safeguard's purpose, leads to indoor electron and electrical equipment outside radiation leakage or suffers external electromagnetic interference's condition emergence when avoiding the staff to get in and out electromagnetic shield room.
Description
Technical Field
The utility model relates to the technical field of electromagnetic shielding chambers, in particular to an electromagnetic shielding chamber with a layered protection function.
Background
The electromagnetic shielding room is generally used for isolating external electromagnetic interference, an ideal electromagnetic environment is simulated by the electromagnetic shielding room, accuracy of test results in measurement and test of indoor electronic and electrical equipment is guaranteed, indoor electromagnetic radiation is prevented from diffusing to the outside, strong electromagnetic radiation is shielded and isolated, normal work of other electronic and electrical equipment is prevented from being interfered or physical health of workers is prevented from being damaged, information leakage of electronic information equipment is prevented, information safety is guaranteed, the existing electromagnetic shielding room is simple in structure, electromagnetic signals are isolated by adopting a plurality of electromagnetic shielding layers, but a single overlapped shielding layer cannot completely isolate the electromagnetic signals, a protective door of the electromagnetic shielding room is communicated with the outside, when the electromagnetic signals are isolated, a door cannot be freely opened and closed, and when workers enter and exit the electromagnetic shielding room and open and close the door, the indoor electronic and electrical equipment are easy to leak out radiation or suffer from the external electromagnetic interference.
Disclosure of Invention
The utility model aims to overcome the existing defects, provides the electromagnetic shielding chamber with the layered protection function, and the two electromagnetic shielding doors are matched for arrangement, so that even if the electromagnetic shielding chamber is tested, the electromagnetic shielding chamber can freely enter and exit, the aim of layered protection of the electromagnetic shielding chamber is fulfilled, the situation that indoor electrons and electrical equipment leak outwards or suffer from external electromagnetic interference when workers enter and exit the electromagnetic shielding chamber is avoided, the probability that the electrons and the electrical equipment leak outwards or suffer from external electromagnetic interference can be reduced to the greatest extent when the workers enter the electromagnetic shielding chamber, and the three mutually cooperate for layered protection, thereby greatly improving the electromagnetic shielding effect of the electromagnetic shielding chamber and effectively solving the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an electromagnetic shielding chamber with a layered protection function comprises an assembly chamber and a protection unit;
the assembly room: the left side in the door frame arranged at the right lower corner of the front surface is hinged with a first electromagnetic shielding door through a hinge, the inner wall surface of the assembly room is provided with a first shielding layer, the bottom wall surface of the first shielding layer is provided with an evenly distributed antistatic floor, and the upper surface of the antistatic floor arranged at the right front corner is provided with a power filter;
protection unit: the assembly room comprises an L-shaped supporting plate, a second electromagnetic shielding door and a second shielding layer, wherein the L-shaped supporting plate is arranged at the right front corner of an inner cavity of the assembly room, through holes which are in one-to-one correspondence with the L-shaped supporting plate are formed in the inner wall surface of the first shielding layer, the second electromagnetic shielding door is hinged to the front side of a door frame arranged at the lower end of a longitudinal plate body of the L-shaped supporting plate through a hinge, the second shielding layer is arranged on the inner wall surface and the outer wall surface of the L-shaped supporting plate, and the outer end head of the second shielding layer is fixedly connected with the inner wall surface of the first shielding layer;
wherein: the input of power filter connects external power supply, and the cooperation setting of two electromagnetic shield doors even the indoor test of electromagnetic shield is being carried out, also can the free business turn over, has reached electromagnetic shield room layering protection's purpose, and the condition that leads to indoor electron and electrical equipment to outwards radiate leakage or suffer external electromagnetic interference takes place when avoiding the staff business turn over electromagnetic shield room, can furthest reduce electron and electrical equipment to outwards radiate leakage or suffer external electromagnetic interference's probability when the staff gets into, and the three mutually supports layering protection to electromagnetic shield room shielding electromagnetic effect has been promoted greatly.
Further, the protection unit further comprises a conductive cloth, wherein the conductive cloth is arranged on the inner top wall surface of the door frame arranged at the lower end of the longitudinal plate body of the L-shaped supporting plate, and the probability of outward radiation leakage or external electromagnetic interference of electronic and electrical equipment can be reduced to the greatest extent.
Furthermore, ferrite wave absorbing layers are arranged on the inner wall surfaces of the interlayers of the first shielding layer and the second shielding layer respectively and absorb electromagnetic waves generated in the electromagnetic shielding chambers.
Furthermore, permalloy shielding layers are arranged on the outer wall surfaces of the interlayers of the first shielding layer and the second shielding layer, so that electromagnetic waves in the electromagnetic shielding chamber and electromagnetic waves outside the electromagnetic shielding chamber can be shielded.
Further, a conductive foam reflecting layer is arranged between the inner wall surface of the permalloy shielding layer and the outer wall of the ferrite wave absorbing layer, and the outer side end heads of the conductive foam reflecting layer are fixedly connected with the corresponding wall surfaces of the adjacent shielding layer I and the shielding layer II respectively, so that the electromagnetic shielding effect of the electromagnetic shielding chamber is greatly improved.
Further, a waveguide window is arranged in the vent hole arranged on the right surface of the assembly chamber, and the inner side end head of the waveguide window respectively penetrates through the inner wall surfaces of the adjacent shielding layer I, the ferrite wave absorbing layer, the permalloy shielding layer and the conductive foam reflecting layer and extends to the inner cavity of the assembly chamber, so that the electromagnetic signal can be prevented while the ventilation of air is ensured.
Furthermore, the first shielding layer is a cold rolled steel hollow shielding layer, the second shielding layer is a cold rolled steel hollow shielding layer, and the electromagnetic shielding effect is achieved by using the cold rolled steel material.
Compared with the prior art, the utility model has the beneficial effects that: the electromagnetic shielding chamber with the layered protection function has the following advantages:
1. when the staff gets in and out the electromagnetic shielding room, the staff opens first electromagnetic shielding door at first, then enter into the space that L type backup pad and assembly room right front angle department formed, afterwards close first electromagnetic shielding door, at this moment open the second electromagnetic shielding door again and enter into the electromagnetic shielding room, the cooperation setting of two electromagnetic shielding doors, even the electromagnetic shielding room is being tested in, also can be free business turn over, the purpose of electromagnetic shielding room layering protection has been reached, the condition emergence that leads to indoor electron and electrical equipment outward radiation leakage or suffer external electromagnetic interference when avoiding the staff business turn over electromagnetic shielding room, the conducting cloth can reduce electron and electrical equipment outward radiation leakage or suffer external electromagnetic interference's probability when the staff gets in to the furthest.
2. The ferrite wave absorbing layer absorbs electromagnetic waves generated in the electromagnetic shielding chamber, the permalloy shielding layer can shield the electromagnetic waves in the electromagnetic shielding chamber and the electromagnetic waves outside the electromagnetic shielding chamber, the conductive foam reflecting layer reflects the electromagnetic waves passing through the ferrite wave absorbing layer, the permalloy shielding layer, the shielding layer I and the shielding layer II, and the ferrite wave absorbing layer, the permalloy shielding layer, the shielding layer I and the shielding layer II are mutually matched for layered protection, so that the electromagnetic shielding effect of the electromagnetic shielding chamber is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a protection unit according to the present utility model;
FIG. 3 is a schematic diagram of the protection unit A according to the present utility model;
FIG. 4 is a schematic diagram of a B-type protection unit according to the present utility model.
In the figure: the electromagnetic shielding device comprises a mounting room 1, a first electromagnetic shielding door 2, a shielding layer I, a shielding unit 4, a 41L-shaped supporting plate, a second electromagnetic shielding door 42, a shielding layer II, 44 conductive cloth, a ferrite wave absorbing layer 5, a conductive foam reflecting layer 6, a permalloy shielding layer 7, an antistatic floor 8, a waveguide window 9 and a power filter 10.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present embodiment provides a technical solution: an electromagnetic shielding chamber with a layered protection function comprises an assembly chamber 1 and a protection unit 4;
assembly room 1: the assembly room 1 provides an installation supporting place for the affiliated mechanism units, a first electromagnetic shielding door 2 is hinged to the left side in a door frame arranged at the right lower corner of the front surface of the assembly room through a hinge, the first electromagnetic shielding door 2 pneumatically shields electromagnetic action, the inner wall surface of the assembly room 1 is provided with a shielding layer I3, the shielding layer I3 achieves the purpose of primary electromagnetic shielding, the bottom wall surface of the shielding layer I3 is provided with an uniformly distributed antistatic floor 8, the antistatic floor 8 can electromagnetically shield the room and inducted charges, interference caused by electrostatic coupling is prevented, a power filter 10 is arranged on the upper surface of the antistatic floor 8 arranged at the right front corner, the power filter 10 can filter clutter supplied into a power supply, and the ferrite wave absorbing layer 5 absorbs electromagnetic waves generated in the electromagnetic shielding room, so that the accuracy of detection data in the electromagnetic shielding room with a layered protection function is improved;
protection unit 4: the electromagnetic shielding device comprises an L-shaped supporting plate 41, a second electromagnetic shielding door 42 and a shielding layer II 43, wherein the L-shaped supporting plate 41 is arranged at the right front corner of an inner cavity of an assembly room 1, the inner wall surface of a shielding layer I3 is provided with penetrating openings corresponding to the L-shaped supporting plate 41 one by one, the front side of a door frame arranged at the lower end of a longitudinal plate body of the L-shaped supporting plate 41 is hinged with the second electromagnetic shielding door 42 through a hinge, the inner wall surface and the outer wall surface of the L-shaped supporting plate 41 are both provided with a shielding layer II 43, the outer end of the shielding layer II 43 is fixedly connected with the inner wall surface of the shielding layer I3, the protective unit 4 also comprises a conductive cloth 44, the conductive cloth 44 is arranged on the inner top wall surface of the door frame arranged at the lower end of the longitudinal plate body of the L-shaped supporting plate 41, when workers enter the electromagnetic shielding room, the workers firstly open the first electromagnetic shielding door 2, then enter into a space formed at the right front corner of the L-shaped supporting plate 41 and the assembly room 1, then close the first electromagnetic shielding door 2, at this time open the second electromagnetic shielding door 42 enters the electromagnetic shielding room, the two electromagnetic shielding doors are matched, even if the electromagnetic shielding room is tested, the electromagnetic shielding room is free, the electromagnetic shielding room can also, the electromagnetic shielding room can be prevented from leaking out of the electromagnetic shielding equipment and the electromagnetic shielding equipment from the electromagnetic shielding equipment to the outside when the electromagnetic shielding room or the electromagnetic shielding equipment is maximally entering and the electromagnetic shielding equipment;
wherein: the input terminal of the power filter 10 is electrically connected to an external power source, and functions as a power supply.
Wherein: the inner wall surfaces of the interlayers of the first shielding layer 3 and the second shielding layer 43 are respectively provided with a ferrite wave absorbing layer 5, and the ferrite wave absorbing layer 5 absorbs electromagnetic waves generated in the electromagnetic shielding chamber.
Wherein: the outer wall surfaces of the interlayers of the first shielding layer 3 and the second shielding layer 43 are respectively provided with a permalloy shielding layer 7, and the permalloy shielding layer 7 can shield electromagnetic waves in and out of the electromagnetic shielding chamber.
Wherein: the electromagnetic shielding device comprises a ferrite wave absorbing layer 5, a permalloy shielding layer 7, a shielding layer 3 and a shielding layer 43, wherein a conductive foam reflecting layer 6 is arranged between the inner wall surface of the permalloy shielding layer 7 and the outer wall of the ferrite wave absorbing layer 5, the outer side end of the conductive foam reflecting layer 6 is fixedly connected with the corresponding wall surfaces of the adjacent shielding layer 3 and the shielding layer 43 respectively, and the conductive foam reflecting layer 6 reflects electromagnetic waves passing through the ferrite wave absorbing layer 5, the permalloy shielding layer 7, the shielding layer 3 and the shielding layer 43, and the electromagnetic wave absorbing layer and the shielding layer are mutually matched and protected in a layered mode, so that the electromagnetic shielding effect of an electromagnetic shielding chamber is greatly improved.
Wherein: the vent hole arranged on the right surface of the assembly chamber 1 is internally provided with a waveguide window 9, and the inner side end of the waveguide window 9 respectively penetrates through the inner wall surfaces of the adjacent shielding layer I3, the ferrite wave-absorbing layer 5, the permalloy shielding layer 7 and the conductive foam reflecting layer 6 and extends to the inner cavity of the assembly chamber 1, so that the waveguide window 9 can prevent electromagnetic signals while ensuring air circulation.
Wherein: the first shielding layer 3 is a cold rolled steel hollow shielding layer I, the second shielding layer 43 is a cold rolled steel hollow shielding layer II, and the electromagnetic shielding effect is achieved by utilizing the material of the cold rolled steel.
The working principle of the electromagnetic shielding chamber with the layered protection function provided by the utility model is as follows: when a worker enters and exits the electromagnetic shielding chamber, the worker firstly opens the first electromagnetic shielding door 2, then enters the space formed at the right front corner of the L-shaped supporting plate 41 and the assembling chamber 1, then closes the first electromagnetic shielding door 2, at this time, opens the second electromagnetic shielding door 42 again, and enters the electromagnetic shielding chamber, the two electromagnetic shielding doors are matched, even if the electromagnetic shielding chamber is being tested, the worker can freely enter and exit the electromagnetic shielding chamber, the purpose of layered protection of the electromagnetic shielding chamber is achieved, the situation that the worker causes outward radiation leakage of indoor electrons and electrical equipment or suffers from external electromagnetic interference when entering and exits the electromagnetic shielding chamber is avoided, the conductive cloth 44 can furthest reduce the probability that the outward radiation leakage of electrons and electrical equipment or suffers from external electromagnetic interference when entering and exits the worker, the power filter 10 can filter clutters in a power supply, the ferrite wave absorbing layer 5 absorbs electromagnetic waves generated in the electromagnetic shielding chamber, the permalloy shielding layer 7 can shield the electromagnetic wave in the electromagnetic shielding chamber and the outdoor electromagnetic wave, the conductive foam reflecting layer 6 can also freely enter and exit the electromagnetic shielding chamber, the electromagnetic wave absorbing layer 5, the permalloy shielding layer 7, the shielding layer 3 and the shielding layer 43 are matched with the shielding layer, the electromagnetic wave absorbing layer 43 can greatly prevent electromagnetic wave coupling, the electromagnetic wave coupling effect of the electromagnetic wave coupling and the electromagnetic wave coupling between the electromagnetic wave shielding layer and the electromagnetic wave shielding chamber is prevented, and the electromagnetic wave coupling effect is prevented, and the electromagnetic wave coupling is prevented, and electromagnetic wave coupling effect is prevented, and electromagnetic shielding effect is greatly, and electromagnetic shielding effect is protected.
It should be noted that the power filter 10 disclosed in the above embodiment can be freely configured according to the practical application scenario, and the power filter 10 can be a VIP5-2A-3dB-20 type power filter.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. An electromagnetic shielding chamber with layered protection function, which is characterized in that: comprises an assembly room (1) and a protection unit (4);
fitting chamber (1): the left side in a door frame arranged at the right lower corner of the front surface of the door frame is hinged with a first electromagnetic shielding door (2) through a hinge, the inner wall surface of an assembly room (1) is provided with a shielding layer I (3), the bottom wall surface of the shielding layer I (3) is provided with an uniformly distributed antistatic floor (8), and a power filter (10) is arranged on the upper surface of the antistatic floor (8) arranged at the right front corner;
protection unit (4): the electromagnetic shielding device comprises an L-shaped supporting plate (41), a second electromagnetic shielding door (42) and a second shielding layer (43), wherein the L-shaped supporting plate (41) is arranged at the right front corner of an inner cavity of an assembly room (1), through holes which are in one-to-one correspondence with the L-shaped supporting plate (41) are formed in the inner wall surface of the first shielding layer (3), the second electromagnetic shielding door (42) is hinged to the front side of a door frame arranged at the lower end of a longitudinal plate body of the L-shaped supporting plate (41) through a hinge, the second shielding layer (43) is arranged on the inner wall surface and the outer wall surface of the L-shaped supporting plate (41), and the outer side end heads of the second shielding layer (43) are fixedly connected with the inner wall surface of the first shielding layer (3);
wherein: the input end of the power filter (10) is electrically connected with an external power supply.
2. An electromagnetic shielding chamber with layered protection function according to claim 1, wherein: the protection unit (4) further comprises a conductive cloth (44), and the conductive cloth (44) is arranged on the inner top wall surface of the door frame arranged at the lower end of the longitudinal plate body of the L-shaped supporting plate (41).
3. An electromagnetic shielding chamber with layered protection function according to claim 1, wherein: and ferrite wave absorbing layers (5) are arranged on the inner wall surfaces of the interlayers of the first shielding layer (3) and the second shielding layer (43).
4. An electromagnetic shielding chamber with layered protection function according to claim 3, wherein: and permalloy shielding layers (7) are arranged on the outer wall surfaces of the interlayers of the first shielding layer (3) and the second shielding layer (43).
5. An electromagnetic shielding chamber with layered protection function according to claim 4, wherein: and a conductive foam reflecting layer (6) is arranged between the inner wall surface of the permalloy shielding layer (7) and the outer wall of the ferrite wave absorbing layer (5), and the outer side end of the conductive foam reflecting layer (6) is fixedly connected with the corresponding wall surfaces of the adjacent shielding layer I (3) and the shielding layer II (43) respectively.
6. An electromagnetic shielding chamber with layered protection function according to claim 5, wherein: the inner side end of the waveguide window (9) respectively penetrates through the inner wall surfaces of the adjacent shielding layer I (3), the ferrite wave absorbing layer (5), the permalloy shielding layer (7) and the conductive foam reflecting layer (6) and extends to the inner cavity of the assembly chamber (1).
7. An electromagnetic shielding chamber with layered protection function according to claim 1, wherein: the first shielding layer (3) is a cold rolled steel hollow shielding layer I, and the second shielding layer (43) is a cold rolled steel hollow shielding layer II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223440609.XU CN218959386U (en) | 2022-12-22 | 2022-12-22 | Electromagnetic shielding chamber with layered protection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223440609.XU CN218959386U (en) | 2022-12-22 | 2022-12-22 | Electromagnetic shielding chamber with layered protection function |
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| Publication Number | Publication Date |
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| CN218959386U true CN218959386U (en) | 2023-05-02 |
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| CN202223440609.XU Active CN218959386U (en) | 2022-12-22 | 2022-12-22 | Electromagnetic shielding chamber with layered protection function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118434116A (en) * | 2024-07-04 | 2024-08-02 | 易创智芯(西安)科技有限公司 | Electromagnetic shielding room with layering protection function |
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2022
- 2022-12-22 CN CN202223440609.XU patent/CN218959386U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118434116A (en) * | 2024-07-04 | 2024-08-02 | 易创智芯(西安)科技有限公司 | Electromagnetic shielding room with layering protection function |
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