CN210671177U - All-weather electromagnetic shielding structure - Google Patents

Abstract

The utility model provides an all-weather electromagnetic shield structure, it is including the wave guide board that stacks gradually, rain-proof noise elimination body and dust screen, and wherein, rain-proof noise elimination body includes a plurality of chevron shape structures, and chevron shape structure comprises chevron shape aluminum plate, chevron shape microporous aluminum plate and the noise elimination material of setting between chevron shape aluminum plate and chevron shape microporous aluminum plate. The all-weather electromagnetic shielding structure is simple in structure and convenient to install, and can be widely applied to the fields of electromagnetic shielding, noise reduction and the like of a generator set. The all-weather electromagnetic shielding structure is applied to the van-type power station, so that the interference of electromagnetic waves to the power station can be eliminated when a plurality of high-frequency equipment circuits work; the rain-proof and dust-proof air conditioner is not influenced by environments such as rainfall, sand wind and the like, and has the functions of rain prevention, dust prevention, ventilation, noise reduction and the like; the circuit failure rate of the power station equipment is reduced, and the use reliability of the power station is improved.

Description

All-weather electromagnetic shielding structure

Technical Field

The utility model relates to a van-type power station field, concretely relates to all-weather electromagnetic shield structure.

Background

With the development of modern military power stations, the requirements of users on the environmental adaptability and electromagnetic shielding of the power stations are higher and higher. In a power station, control circuits are easily affected by electromagnetic waves in numerous supporting devices, so that various faults are generated, and meanwhile, the operation reliability is greatly affected in a severe environment. The power station needs to work in environments such as plateau, sand storm, rainy and snowy days and the like, and under the environments, the operation reliability of the power station is greatly influenced, and particularly, the protection of an air inlet and an air outlet of the power station is highly required. If the air inlet and outlet of the power station is not protected, the noise is very high in the running process of the diesel generator set, and in an environment with large wind sand, the wind sand is easy to block an air filter, so that the air inflow of the diesel engine is insufficient, and the diesel engine is stopped; in a rainy day, if the power station compartment body is filled with water, the diesel generator set is easy to be short-circuited, so that great potential safety hazards are caused.

Electromagnetic compatibility means that various electronic and electrical equipment, devices or systems which work in the same electromagnetic environment can work normally without mutual interference to achieve a compatible state. For electromagnetic compatibility, there are three main solutions: shielding, filtering and grounding.

Disclosure of Invention

In order to be able to eliminate the interference that the electromagnetic wave produced to the power station at numerous high frequency equipment circuit during operation, can not receive the influence of environment such as rainfall and sand blown by the wind, make the power station satisfy the environmental suitability and the electromagnetic shield requirement that the user proposed, the utility model provides an all-weather electromagnetic shield structure.

The utility model provides a pair of all-weather electromagnetic shield structure, including wave guide plate, the rain-proof noise elimination body and the dust screen that stacks gradually, wherein, the rain-proof noise elimination body includes a plurality of chevron shape structures, and chevron shape structure comprises chevron shape aluminum plate, chevron shape microporous aluminum plate and the noise elimination material of setting between chevron shape aluminum plate and chevron shape microporous aluminum plate.

Further, in the rainproof silencer, the distance between adjacent herringbone structures is 30-50 mm, and preferably 45 mm.

Further, the noise elimination material is rock wool.

The technical effects of the utility model are that: simple structure, simple to operate can wide application in fields such as generating set electromagnetic shield, fall and make an uproar. The all-weather electromagnetic shielding structure is applied to the van-type power station, so that the interference of electromagnetic waves to the power station can be eliminated when a plurality of high-frequency equipment circuits work; the rain-proof and dust-proof air conditioner is not influenced by environments such as rainfall, sand wind and the like, and has the functions of rain prevention, dust prevention, ventilation, noise reduction and the like; the circuit failure rate of the power station equipment is reduced, and the use reliability of the power station is improved.

Drawings

Fig. 1 is a schematic view of the all-weather electromagnetic shielding structure of the present invention.

3 fig. 3 2 3 is 3 a 3 schematic 3 view 3 of 3 a 3 waveguide 3 plate 3 according 3 to 3 the 3 present 3 invention 3 ( 3 fig. 3 1 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 along 3 the 3 direction 3 a 3- 3 a 3) 3. 3

Fig. 3 is a schematic view of the rain-proof silencer according to the present invention (fig. 1 is a schematic cross-sectional view along the direction B-B).

Fig. 4 is a schematic view of the herringbone structure of the present invention.

Fig. 5 is a schematic view of the dust screen according to the present invention (fig. 1 is a schematic cross-sectional view along the direction C-C).

The reference signs explain: 1 is a waveguide plate, 2 is a rain-proof silencer, 201 is a herringbone aluminum plate, 202 is a sound absorption material, 203 is a herringbone microporous aluminum plate, and 3 is a dust screen.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 5, an all-weather electromagnetic shielding structure is composed of a waveguide plate 1, a rain-proof noise eliminator 2 and a dust screen 3. That is, the structure is divided into three layers in total, the first layer is the waveguide plate 1 and is arranged at the outermost side of the structure; the second layer is a rain-proof noise eliminator 2 and is arranged in the middle; the third layer is a dust screen 3 which is arranged at the innermost side. Wherein, the rain-proof muffler body 2 is formed by arranging a plurality of herringbone structures; the herringbone structure is composed of herringbone aluminum plates 201, a sound attenuation material 202 and herringbone microporous aluminum plates 203, wherein the herringbone aluminum plates 201 are arranged on the uppermost layer, the sound attenuation material 202 is filled in the middle layer, and the herringbone microporous aluminum plates 203 are arranged on the lowermost layer. In this embodiment, the spacing between adjacent gables is 45mm and the sound damping material is rock wool.

The waveguide plate 1 is arranged at the outermost side of the structure and mainly functions to eliminate interference of electromagnetic waves generated when high-frequency equipment works on power station circuits. The rain-proof noise eliminator 2 is arranged in the middle layer of the structure and has the main function of rain prevention and noise reduction. The dust screen 3 is placed at the innermost side of the structure and has the main function of preventing sand and dust.

The all-weather electromagnetic shielding structure can be arranged at an air inlet and an air outlet of a van-type power station. Wind, electromagnetic waves, sound waves, rainwater and sand dust in the external environment approach the waveguide plate 1, and the waveguide plate 1 shields the external electromagnetic waves; after passing through the waveguide plate 1, the sound waves are blocked by a herringbone aluminum plate 201; the reflected sound waves enter the herringbone microporous aluminum plate 203 and are absorbed by the sound attenuation material 202 in the rainproof sound attenuation body 2; after rainwater passes through the waveguide plate 1, the herringbone aluminum plate 201 is used for preventing rainwater; the sand dust is blocked by the dust screen 3 after passing through the waveguide plate 1 and the rain-proof muffler body 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. An all-weather electromagnetic shielding structure is characterized in that: the rainproof noise elimination device comprises a waveguide plate, a rainproof noise elimination body and a dustproof net which are sequentially stacked, wherein the rainproof noise elimination body comprises a plurality of herringbone structures, and each herringbone structure comprises a herringbone aluminum plate, a herringbone microporous aluminum plate and a noise elimination material arranged between the herringbone aluminum plate and the herringbone microporous aluminum plate.

2. The all-weather electromagnetic shielding structure of claim 1, wherein: in the rain-proof noise damper, the distance between adjacent herringbone structures is 30-50 mm.

3. The all-weather electromagnetic shielding structure of claim 2, wherein: in the rain-proof silencer, the distance between adjacent herringbone structures is 45 mm.

4. The all-weather electromagnetic shielding structure according to any one of claims 1 to 3, wherein: the sound attenuation material is rock wool.

Images