CN110392518A - Electromagnetic shielding vent peculiar to vessel - Google Patents
Electromagnetic shielding vent peculiar to vessel Download PDFInfo
- Publication number
- CN110392518A CN110392518A CN201910779698.4A CN201910779698A CN110392518A CN 110392518 A CN110392518 A CN 110392518A CN 201910779698 A CN201910779698 A CN 201910779698A CN 110392518 A CN110392518 A CN 110392518A
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- China
- Prior art keywords
- shell
- shield
- electromagnetic shielding
- peculiar
- gauze screen
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0001—Rooms or chambers
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention provides a kind of electromagnetic shielding vent peculiar to vessel, the vent includes: shell, shield and gauze screen, the shell is the ducted body of variable cross-section, the shield and gauze screen are placed in the shell and the both ends setting of the corresponding shell, and the periphery wall of the shield and gauze screen is mutually fixed with the inner wall of the shell respectively.The present invention passes through the combined use of gauze screen and shield, it realizes the reflection of electromagnetic wave and absorbs double effects, not only meet electromagnetic shielding cabin ventilation requirement, and it ensure that the integrality and continuity of electromagnetic shielding circumference, it avoids electromagnetic transmission to enter to shield cabin, ensure that the normal operation of shielding cabin indoor equipment.
Description
Technical field
The present invention relates to technical field of ships, more particularly to a kind of electromagnetic shielding vent peculiar to vessel.It specifically, is to use
The air hose communication cabin component of shielding cabin shielding requirements is able to satisfy in electromagnetic shielding cabin ventilating system.Suitable for public affair ship and high speed
In ship electromagnetic shielding cabin ventilating system pipeline.
Background technique
Along with the development and abyssal pelagic demand of China's shipping industry, electromagnetic shielding cabin is in public affair ship and high-speed craft
On using more and more extensive.Communication apparatus, information processing equipment, scientific investigation equipment of electromagnetic shielding cabin etc. are dry in electromagnetic shielding
In the case where disturbing, electromagnetic coupling will form, cause distorted signals, error in data, communication confusion etc., influence ship performance.Thus
While meeting electromagnetic shielding cabin ventilation requirement, also need to consider crossing cabin air hose to the electromagnetic shielding performance of electromagnetic shielding cabin
Influence.Common air hose communication cabin component is directly entered electromagnetic shielding cabin, is easy that integrality and the company of electromagnetic shielding circumference can be destroyed
Continuous property, makes external electromagnetic transmission enter to shield cabin, influences the normal operation for shielding cabin indoor equipment.It is logical using common air hose
Cabin part adds the form of gauze screen, and installation is complicated, and shielding properties is poor, while also will affect the efficiency of ventilating system.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of electromagnetic shieldings peculiar to vessel to divulge information
Part, for solving the problems, such as electromagnetic shielding cabin air hose communication cabin component in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of electromagnetic shielding vent peculiar to vessel, feature
It is, comprising: shell, shield and gauze screen, the shell are the ducted body of variable cross-section, and the shield and gauze screen are placed in
In the shell and the both ends setting of the corresponding shell, the periphery wall of the shield and gauze screen respectively with the shell
Inner wall is mutually fixed.
Preferably, the outer surface of the shell has the web being connected with bulkhead, and the shield and gauze screen are located at institute
State the two sides of web.
Preferably, the shield is fixed on the housing inner diameter maximum.
Preferably, the cross section of the shield is made of multiple regular hexagons.
Preferably, shelves item is equipped in the shell, the end of the shield is fixedly linked with the shelves item.
Preferably, the gauze screen is wire mesh.
Preferably, gauze screen fixed part is equipped in the shell, the gauze screen and the gauze screen fixed part are detachable
It is connected.
Preferably, the end of the shell is equipped with connecting flange.
As described above, present invention electromagnetic shielding vent peculiar to vessel, has the advantages that
The shell of the electromagnetic shielding vent is that the design of variable cross-section reduces shielding by the sectional area locally increased
Influence of the body to pipeline Wind resistance ensure that the indoor ventilation efficiency in cabin, while remaining electromagnetism is also absorbed in maximum magnitude
Wave.By the combined use of gauze screen and shield, the double action of the reflection and absorption to electromagnetic wave is realized, is not only met
Electromagnetic shielding cabin ventilation requirement, and ensure that the integrality and continuity of electromagnetic shielding circumference, avoid electromagnetic wave biography
Input shielding cabin, ensure that the normal operation of shielding cabin indoor equipment.
Detailed description of the invention
Fig. 1 is shown as electromagnetic shielding vent structure chart peculiar to vessel of the invention.
Fig. 2 is shown as shell structure figure of the invention.
Fig. 3 is shown as shield and blend stop connection schematic diagram of the invention.
Fig. 4 is shown as gauze screen and gauze screen fixed part connection schematic diagram of the invention.
Fig. 5 is shown as shield cellular construction schematic diagram of the invention.
Fig. 6 is shown as the scheme of installation of electromagnetic shielding vent peculiar to vessel of the invention.
Component label instructions
1 shell
1-1 cabin interconnecting piece
1-2 interlude
1-3 web
1-4 gauze screen fixed part
1-5 grades of items
1-6 flange
2 shields
3 gauze screens
4 bulkheads
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that structure, ratio, size etc. depicted in this specification institute attached drawing, only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, the model that disclosed technology contents can be covered should all be still fallen in
In enclosing.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be also only
Convenient for being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the present invention.
As shown in Figures 1 to 6, the present invention provides a kind of electromagnetic shielding vent peculiar to vessel comprising: shell 1, shield 2
With gauze screen 3, the shell 1 is the ducted body of variable cross-section, and the shield 2 and gauze screen 3 are placed in the shell 1 and corresponding
The both ends of the shell 1 are arranged, and inner wall of the periphery wall of the shield 2 and gauze screen 3 respectively with the shell 1 is mutually fixed.
The present invention is welded by web 1-3 and electromagnetic shielding cabin bulkhead 4, and the flange 1-6 and ventilating system pipeline at 1 both ends of shell connect
It connects, gauze screen 3 and shield 2 is used in combination, ensure that the integrality of electromagnetic shielding circumference, realize the reflection to electromagnetic wave
Shield 2 is reduced by the sectional area locally increased with the variable cross-section feature of the double action of absorption, while utilization shell 1
Influence to pipe resistance ensure that the indoor ventilation efficiency in cabin, and realizing shielding cabin can satisfy the ventilation of shielding requirements
Effect.
As shown in Figure 1, Figure 2, Figure 6 shows, the outer surface of shell 1 described in the present embodiment has the web 1- being connected with bulkhead 4
3, the shield 2 and gauze screen 3 are located at the two sides of the web 1-3, i.e. gauze screen 3 is located at outside shielding cabin, and shield 2
In in shielding cabin, such design can be shielded external electromagnetic wave by the reflex of gauze screen 3, be passed through simultaneously
The absorption of shield 2 is shielded, and the double action of the reflection and absorption to electromagnetic wave is realized, and avoids electromagnetic wave biography
Input shielding cabin.
As shown in Figure 1, Figure 2, Figure 6 shows, for shell 1 by three Duan Zucheng, front and rear sections are cabin interconnecting piece 1-1 in the present embodiment, in
Between section 1-2 in dolioform, the shield 2 is fixed on the 1 internal diameter maximum of shell and is located at the dolioform internal diameter of interlude 1-2
Maximum reduces the resistance to pipeline ventilation by the sectional area locally increased, ensure that the smooth of ventilation, also in maximum model
The interior remaining electromagnetic wave of absorption is enclosed, electromagnetic transmission is avoided and enters to shield cabin.
As shown in figure 5, the cross section of shield 2 described in the present embodiment is made of multiple regular hexagons, i.e., it can be by more
The tube-like piece of a regular hexagon constitutes honeycomb structure, increases shielding properties.
As shown in Figure 1 to Figure 3, shelves 1-5, the end of the shield 2 and institute are equipped in shell 1 described in the present embodiment
It states shelves 1-5 to be fixedly linked using welding manner with shell 1, because shield 2 is multiple regular hexagons composition, boundary is not advised
Then, directly it is connected with shell 1, periphery can have the gap, and be welded and fixed by shelves 1-5 and shell 1 so that full perimetric enclosure, tool
There is good electrical contact.
As shown in Figure 1, Figure 2, Figure 4 shows, gauze screen 3 described in the present embodiment is wire mesh, is equipped with shielding in the shell 1
Net fixed part 1-4, the gauze screen 3 are detachably to be connected with the gauze screen fixed part 1-4, and replacement is convenient, can play protection against rodents
The effect of insect prevention, while increasing the practicability of electromagnetic shielding vent.
As shown in fig. 6, the end of shell 1 described in the present embodiment is equipped with connecting flange 1-6, external ventilation system pipeline is logical
Two end flanges 1-6 connections, installation convenience are crossed, and 1 section of shell can be rectangle, circle, oblateness, be able to satisfy different air hose systems
Road demand under the overall leadership.
Such as Fig. 6, a kind of specifically used process of electromagnetic shielding vent peculiar to vessel of the present embodiment are as follows: by web 1-3 and electromagnetism
Shield 4 two-sided welding of cabin bulkhead, the flange 1-6 and ventilating system piping connection at 1 both ends of shell, the normal ventilation state in cabin
Under, external electromagnetic wave is shielded by the reflex of gauze screen 3, while being shielded by the absorption of shield 2, real
The double action for having showed the reflection and absorption to electromagnetic wave avoids electromagnetic transmission and enters to shield cabin.
Shield effectiveness requirement referring to shield door peculiar to vessel is as follows:
When requiring wind speed to reach 8m/s in ventilation attachment design peculiar to vessel simultaneously, the drag losses by attachment of divulging information are little
In 40Pa, when wind speed reaches 10m/s, it is not more than 50Pa by the drag losses for attachment of divulging information.
It is as follows using example:
This electromagnetic shielding vent framework peculiar to vessel section can be 220mm*150mm, and length can be 300mm, interlude specification
It can be 250*180*70mm, the side length of each regular hexagon can be 10.8mm in shield, and thickness can be 0.6mm, shield body length
It can be 70mm.About 3 mesh of gauze screen silk screen meshcount/cun, string diameter about 1.0mm.
1) it is as follows to test its electromagnetic shielding performance:
This electromagnetic shielding vent is suitable for 2 grades and 3 grades of electromagnetic shielding cabins, by the change side length of shield, thickness,
Length, material etc. can enhance the requirement that its shielding properties reaches 1 grade of electromagnetic shielding cabin.
2) ventilation efficiency is as follows:
Local resistance loss is as shown in the table:
When wind speed is 8.17m/s in upper table, drag losses 20.3Pa, when wind speed is 10.02m/s, drag losses are
36.1Pa, thus this electromagnetic shielding vent ventilation efficiency peculiar to vessel meets the requirement of ventilation attachment design peculiar to vessel.
In conclusion present invention electromagnetic shielding vent peculiar to vessel, had not only been able to satisfy the shielding requirements of electromagnetic shielding cabin, but also energy
Meets the needs of electromagnetic shielding cabin chamber ventilated.So present invention electromagnetic shielding vent peculiar to vessel effectively overcomes in the prior art
Various shortcoming and have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (8)
1. a kind of electromagnetic shielding vent peculiar to vessel characterized by comprising shell, shield and gauze screen, the shell are to become
The ducted body in section, the shield and gauze screen are placed in the shell and the both ends setting of the corresponding shell, the screen
The periphery wall for covering body and gauze screen is mutually fixed with the inner wall of the shell respectively.
2. electromagnetic shielding vent peculiar to vessel according to claim 1, it is characterised in that: the outer surface of the shell have with
The connected web of bulkhead, the shield and gauze screen are located at the two sides of the web.
3. electromagnetic shielding vent peculiar to vessel according to claim 1, it is characterised in that: the shield is fixed on the shell
Internal diameter maximum.
4. according to claim 1 or electromagnetic shielding vent peculiar to vessel as claimed in claim 3, it is characterised in that: the shield
Cross section be made of multiple regular hexagons.
5. electromagnetic shielding vent peculiar to vessel according to claim 4, it is characterised in that: be equipped with shelves item, institute in the shell
The end and the shelves item for stating shield are fixedly linked.
6. electromagnetic shielding vent peculiar to vessel according to claim 1, it is characterised in that: the gauze screen is wire mesh.
7. according to claim 1 or electromagnetic shielding vent peculiar to vessel as claimed in claim 6, it is characterised in that: in the shell
Equipped with gauze screen fixed part, the gauze screen is detachably connected with the gauze screen fixed part.
8. electromagnetic shielding vent peculiar to vessel according to claim 1, it is characterised in that: the end of the shell is equipped with connection
Flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779698.4A CN110392518A (en) | 2019-08-22 | 2019-08-22 | Electromagnetic shielding vent peculiar to vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779698.4A CN110392518A (en) | 2019-08-22 | 2019-08-22 | Electromagnetic shielding vent peculiar to vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110392518A true CN110392518A (en) | 2019-10-29 |
Family
ID=68289228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910779698.4A Pending CN110392518A (en) | 2019-08-22 | 2019-08-22 | Electromagnetic shielding vent peculiar to vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110392518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730610A (en) * | 2019-11-25 | 2020-01-24 | 苏州嘉盛科技电讯有限公司 | High-performance electromagnetic shielding cabinet |
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| JP2001336237A (en) * | 2000-05-29 | 2001-12-07 | Shimizu Corp | Electric wave absorbing body for building and electromagnetic wave shielded building |
| CN2829319Y (en) * | 2005-11-07 | 2006-10-18 | 技越电子股份有限公司 | Ventilation shield of signal shield box |
| CN200987256Y (en) * | 2006-12-13 | 2007-12-05 | 中国科学院半导体研究所 | Anti-electromagnetic radiation package structure of digital electronic product |
| DE102007010818A1 (en) * | 2007-03-06 | 2008-04-24 | Audi Ag | Electromagnetic radiation shielding device for control device of motor vehicle, has web made from threads, which are coated with metallic material, where threads are provided with fiber forming core of threads |
| CN103118523A (en) * | 2013-01-18 | 2013-05-22 | 范茂荣 | Ship electromagnetic shielding cabin through piece |
| CN204215310U (en) * | 2014-11-18 | 2015-03-18 | 合肥联宝信息技术有限公司 | Notebook computer casing |
| CN206685608U (en) * | 2017-03-12 | 2017-11-28 | 江苏东源电子科技有限公司 | A kind of light current connector |
| CN206984292U (en) * | 2017-06-29 | 2018-02-09 | 常熟市海鑫船舶机械制造有限公司 | A kind of air grid peculiar to vessel with electro-magnetic screen function |
| CN208590215U (en) * | 2018-08-14 | 2019-03-08 | 洛阳市通航电子设备有限公司 | A kind of control cabinet for the anti-electromagnetic interference that thermal diffusivity is good |
| CN109862770A (en) * | 2019-03-14 | 2019-06-07 | 四川海特亚美航空技术有限公司 | The anti-interference structure of auxiliary power unit control unit |
| JP2019096646A (en) * | 2017-11-17 | 2019-06-20 | 株式会社デンソー | Electronic equipment |
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2019
- 2019-08-22 CN CN201910779698.4A patent/CN110392518A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10335878A (en) * | 1997-06-03 | 1998-12-18 | Kajima Corp | Electromagnetic shield structure for openings |
| JP2001336237A (en) * | 2000-05-29 | 2001-12-07 | Shimizu Corp | Electric wave absorbing body for building and electromagnetic wave shielded building |
| CN2829319Y (en) * | 2005-11-07 | 2006-10-18 | 技越电子股份有限公司 | Ventilation shield of signal shield box |
| CN200987256Y (en) * | 2006-12-13 | 2007-12-05 | 中国科学院半导体研究所 | Anti-electromagnetic radiation package structure of digital electronic product |
| DE102007010818A1 (en) * | 2007-03-06 | 2008-04-24 | Audi Ag | Electromagnetic radiation shielding device for control device of motor vehicle, has web made from threads, which are coated with metallic material, where threads are provided with fiber forming core of threads |
| CN103118523A (en) * | 2013-01-18 | 2013-05-22 | 范茂荣 | Ship electromagnetic shielding cabin through piece |
| CN204215310U (en) * | 2014-11-18 | 2015-03-18 | 合肥联宝信息技术有限公司 | Notebook computer casing |
| CN206685608U (en) * | 2017-03-12 | 2017-11-28 | 江苏东源电子科技有限公司 | A kind of light current connector |
| CN206984292U (en) * | 2017-06-29 | 2018-02-09 | 常熟市海鑫船舶机械制造有限公司 | A kind of air grid peculiar to vessel with electro-magnetic screen function |
| JP2019096646A (en) * | 2017-11-17 | 2019-06-20 | 株式会社デンソー | Electronic equipment |
| CN208590215U (en) * | 2018-08-14 | 2019-03-08 | 洛阳市通航电子设备有限公司 | A kind of control cabinet for the anti-electromagnetic interference that thermal diffusivity is good |
| CN109862770A (en) * | 2019-03-14 | 2019-06-07 | 四川海特亚美航空技术有限公司 | The anti-interference structure of auxiliary power unit control unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730610A (en) * | 2019-11-25 | 2020-01-24 | 苏州嘉盛科技电讯有限公司 | High-performance electromagnetic shielding cabinet |
| CN110730610B (en) * | 2019-11-25 | 2024-05-10 | 苏州嘉盛科技电讯有限公司 | Electromagnetic shielding cabinet |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191029 |
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| RJ01 | Rejection of invention patent application after publication |