CN112467332A - Windproof retractable antenna structure - Google Patents
Windproof retractable antenna structure Download PDFInfo
- Publication number
- CN112467332A CN112467332A CN202011104422.5A CN202011104422A CN112467332A CN 112467332 A CN112467332 A CN 112467332A CN 202011104422 A CN202011104422 A CN 202011104422A CN 112467332 A CN112467332 A CN 112467332A
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- antenna
- housing
- air
- dewing
- layer glass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/005—Damping of vibrations; Means for reducing wind-induced forces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
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Abstract
The invention discloses a windproof telescopic antenna structure which comprises an antenna housing. A hollow channel is arranged on the side surface of the antenna housing, a double-layer glass piece covers the hollow channel, and an air cavity is formed on the housing body of the antenna housing; the bottom of the antenna housing is provided with a dewing device, the dewing device is provided with an air duct, and a dewing plate is arranged in the air duct; the antenna housing, the double-layer glass piece and the dewing device form a closed accommodating space in an enclosing mode; the double-layer glass piece consists of inner-layer glass and outer-layer glass in sequence from the inside to the outside of the antenna housing; the top of the inner layer glass is provided with a first gap to form a first channel for communicating the air cavity and the accommodating space; the bottom of the inner glass layer is provided with a second notch, the air duct of the dewing device is arranged at the second notch, and the second notch is matched with the air duct of the dewing device to form a second channel for communicating the air chamber with the accommodating space. The invention has the technical effects of reducing and delaying the influence of salt spray on the performance of the antenna and prolonging the service life of the antenna.
Description
Technical Field
The invention relates to an antenna structure, in particular to a windproof telescopic antenna structure.
Background
When sailing on the sea, the air contains a large amount of salt evaporated along with the sea water, and the salt fog with high concentration is formed when the salt is dissolved in the water drops, and the salt fog can damage electrical components, especially the components made of metal materials. In the consideration of daily maintenance, change, the windshield is the detachable part mostly, can not guarantee absolute seal, in addition, also need open the windshield during daily maintenance, and this just leads to partial salt fog still can be along with inside the air flow gets into the windshield, causes the influence to inside metal device. The antenna, as a passive device, is usually made of metal, and is also susceptible to salt fog, resulting in performance loss.
Disclosure of Invention
The invention aims to provide a windproof telescopic antenna structure which has the technical effects of reducing and delaying the influence of salt mist on the performance of an antenna and prolonging the service life of the antenna.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a windproof telescopic antenna structure comprises an antenna housing. A hollow channel is arranged on the side surface of the antenna housing, a double-layer glass piece covers the hollow channel, and an air cavity is formed on the housing body of the antenna housing; the bottom of the antenna housing is provided with a dewing device, the dewing device is provided with an air duct, and a dewing plate is arranged in the air duct; the antenna housing, the double-layer glass piece and the dewing device form a closed accommodating space in an enclosing mode; the double-layer glass piece consists of inner-layer glass and outer-layer glass in sequence from the inside to the outside of the antenna housing; the top of the inner layer glass is provided with a first gap to form a first channel for communicating the air cavity and the accommodating space; the bottom of the inner glass layer is provided with a second notch, the air duct of the dewing device is arranged at the second notch, and the second notch is matched with the air duct of the dewing device to form a second channel for communicating the air chamber with the accommodating space.
Salt fog entering the interior of the radome can cause electrochemical corrosion of the metal parts of the antenna and cause the antenna to become wet because of the tendency of the salt fog to form condensation on the metal parts of the antenna. The amount of water vapor which can be contained by the salt spray is in direct proportion to the temperature, when the temperature is reduced to a level that the water vapor originally contained cannot be contained, the condensation phenomenon can occur, and the metal has better heat conductivity compared with nonmetal, so that the temperature of the metal is lower than that of the surrounding environment, therefore, the salt spray is easy to form small water drops on the surface of the metal and is condensed and exposed, and the antenna is affected by the moisture of the water; in addition, the dew formed by the salt spray contains sodium chloride, which is decomposed into sodium ions and chloride ions, and reacts with metals to cause electrochemical corrosion.
According to the invention, solar energy is absorbed through the double-layer glass piece, the air circulation is utilized, the integral temperature of air in the accommodating space is raised, and the upper limit of the amount of water vapor capable of being accommodated is raised, so that the possibility of salt mist condensation is reduced, and the electrochemical corrosion influence and the damp influence on the antenna are reduced. Particularly, on outdoor solar ray incided double glazing spare, after reflection, transmission and absorption, glass temperature rose under the radiation of light, simultaneously with the air in the air cavity carry out the heat transfer, the air that is heated rises, send heat in to the accommodation space by first passageway, the cold air in the accommodation space then gets into the air cavity via the second passageway, so forms the convection current circulation of air repeatedly, utilizes the whole temperature of air in this kind of circulation promotion accommodation space. In addition, the double glazing described herein is made of glass and/or plexiglass, since both reflect, refract and absorb solar rays.
In the present invention, the condensation device is provided at the second notch, and the cold air containing the salt mist can be transported to the condensation device by using the air convection circulation, and the cold air is further cooled by the condensation plate, so that the salt mist is condensed on the condensation plate at a fixed point. The moisture concentration in the antenna housing can be reduced through the condensation device, so that the possibility of condensation of salt mist on the antenna is further reduced.
Preferably, an antenna is arranged in the accommodating space and fixedly connected to the upper portion of the accommodating space through an antenna bracket.
According to the principle that hot air is heated to rise and cold air is cooled down, the temperature of the upper part of the accommodating space is higher than that of the lower part, the antenna is arranged in an environment with relatively high temperature, the upper limit of vapor accommodation of the air can be improved, the temperature of the antenna, particularly the temperature of metal parts is improved, and therefore the possibility that salt fog is condensed on the antenna is reduced. In addition, the temperature is increased, and the convection circulation of air is assisted, so that a dry environment can be formed on the surface of the antenna, and electrochemical corrosion is frequently generated in a deliquescent environment, so that the drying can destroy the generation condition of the electrochemical corrosion.
At the same time, the resulting dry environment may protect the antenna from corrosion by microorganisms in the salt spray. Avoidance of microbial corrosion of antennas is achieved primarily by inhibiting microbial growth for three reasons: firstly, when the water on the surface of the antenna is completely evaporated, the microorganisms lose the nutritional condition for growth, namely the water required by growth; secondly, the water condensed on the surface of the antenna contains salt, and when the water content is reduced, the alkalinity is increased along with the salt and exceeds the PH range suitable for the growth of microorganisms; third, as water is reduced, the concentration of microorganisms increases, also inhibiting their growth. The overall service life of the antenna is improved as a result of the reduced effects of the aforementioned corrosion and moisture on the antenna.
Preferably, the dewing device comprises a dew collection box, a collection box cover is connected to the dew collection box, and the air channel is arranged between the dew collection box and the collection box cover; the dewing plate is connected to the dew collection box and/or the collection box cover; a dew collecting channel is arranged between the air duct and the dew collecting box.
The salt fog forms dew on the surface of the dew condensation plate, and finally enters the dew collection box through the dew collection channel under the action of gravity, so that the dew is collected at fixed points. Of course, when the bottom of the accommodating space and the top of the box cover of the collecting box are inclined towards the cold air inlet direction of the air duct, the fixed-point collecting effect of the dew is the best.
Preferably, the dew condensation plate is embodied as a metal plate.
The characteristic that metal has better heat conductivity than nonmetal is mainly utilized, and the metal material is selected for use to the dewing board, compares other materials, realizes the dewing to the salt atmosphere more easily.
Preferably, the antenna housing comprises a housing, an opening is arranged at the top of the housing, and a housing cover is connected to the opening; the inside of the shell cover is an antenna cavity, and the antenna is arranged in the antenna cavity.
The horizontal position in antenna cavity is higher than the horizontal position of first passageway in the cap, when the antenna was arranged in the antenna cavity, can guarantee that the whole antenna all is in the environment of relative high temperature. In addition, by adopting the structure, the antenna is convenient for the user to maintain and clean the antenna in daily life. Certainly, in order to improve the sealing performance between the housing and the housing cover, a sealing gasket may be disposed between the housing and the housing cover.
Preferably, the bottom of the shell is connected with a rotating device, and the bottom of the rotating device is fixedly connected with a telescopic rod; the shell and the telescopic rod can rotate relatively through the rotating device.
The invention mainly utilizes solar energy to heat the air in the air cavity, so that the double-layer glass piece needs to face the sun. The rotating device is a conventional device, and has many specific designs, which are not described in detail.
The invention is provided with the telescopic rod, and mainly utilizes the telescopic rod to lift the height of the antenna, the design firstly reduces the influence of the superstructure of the ship on the antenna signal reception through the height increase, and secondly realizes the height adjustment to realize the reception of various short wave signals by the ship.
Preferably, the shell and the shell cover are connected in a detachable fixed connection mode; the shell and the dewing device are connected in a detachable and fixed mode.
The shell is detachably and fixedly connected with the dewing device, so that a user can conveniently and regularly clean the dew collected in the dewing device.
Preferably, the telescopic rod is a hydraulic telescopic rod or a pneumatic telescopic rod.
Preferably, the surface of the inner layer glass on the side close to the antenna is covered with a glass reflective film or a heat storage material.
The glass reflective film and the heat storage material belong to the prior art, and are not described herein. Utilize the two mainly to be used for promoting the air temperature difference between the air in the air cavity and the accommodation space, this kind of temperature difference's increase can promote air flow velocity firstly, secondly can promote the air in the air cavity through the heat that obtains with double glazing spare heat transfer, promotes double glazing spare's solar energy utilization efficiency promptly. In addition, the dew condensation device can further reduce the temperature of the air in the accommodating space and can also assist the increase of the temperature difference.
When the sunlight is incident on the double-layer glass piece, the sunlight firstly passes through the reflection, transmission and absorption of the outer layer glass and enters the accommodating space after passing through the reflection, transmission and absorption of the inner layer glass, and the temperature in the accommodating space is increased. And cover the glass reflective membrane on inlayer glass, then can reflect the sun ray of inlayer glass transmission once more to reduce the accommodation space and get hot, and obtain by the air cavity again, promote the temperature difference of the air in the air cavity and the accommodation space. According to the formula, the heat Q gained by the air in the air chamber by heat exchange with the double glazing unit can be expressed as:
Q＝ρ·Cp·F·v·(t1-t2)·3600 [Kw/h]
in the formula: rho-air Density, [ Kg/m3]；
Cp-air specific heat, [ J/Kg. K ];
f is the area of the cross section of the first gap, namely a square meter;
v-average flow velocity of the gas stream at the first notch, [ m/s ];
t 1-temperature of air within the air cavity; [K] (ii) a
t 2-temperature of air in the accommodating space; [K]
according to the formula, rho, Cp and F are constants, the heat Q mainly depends on the wind speed and the temperature difference, and the wind speed also depends on the temperature difference, so that the temperature of the air in the air cavity is increased, the temperature difference between the air in the air cavity and the air in the accommodating space is enlarged, the utilization efficiency of the double-layer glass piece on solar energy is increased, the integral temperature in the antenna housing is increased, the air flow in the antenna housing is accelerated, and the integral technical performance of the antenna is improved.
In addition, the heat storage material can further improve the temperature difference by reducing the heat exchange between the inner layer glass and the air in the accommodating space compared with the glass reflective film.
The invention has the following beneficial effects:
1. according to the invention, through the double-layer glass piece and the condensation device and by utilizing solar energy, air circulation in the antenna housing is realized, and cold air containing salt mist is brought to the condensation device, so that the technical problem that the antenna is subjected to electrochemical corrosion and humidity due to the fact that the salt mist enters the interior of the windshield in the prior art is solved, the fixed-point condensation of the salt mist is realized, the fixed-point collection of dew is realized, the possibility of condensation of the salt mist on the surface of the antenna is reduced, and the electrochemical corrosion influence and humidity influence on the antenna are reduced.
2. According to the invention, the metal parts on the antenna are continuously heated to raise the temperature of the metal parts, and then the convection circulation of air is assisted to form a dry environment on the surface of the antenna, so that the growth of microorganisms is inhibited, the technical problem that the antenna is corroded by the microorganisms due to the fact that salt fog enters the interior of the windshield in the technology is solved, and the influence of the microbial corrosion on the antenna is reduced.
3. According to the invention, the glass reflective film or the heat storage material is covered on the inner layer glass, and the moisture condensation device is utilized to cool the air in the accommodating space, so that the temperature difference between the air in the air cavity and the air in the accommodating space is improved, the solar energy utilization efficiency of the double-layer glass piece is improved, the air flow in the antenna housing is accelerated, and the overall technical performance of the antenna is improved.
4. The invention reduces the influence of the corrosion and the moisture on the antenna and prolongs the whole service life of the antenna.
Drawings
FIG. 1 is an overall schematic view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic view of the connection between the housing and the rotating device.
Fig. 4 is a cross-sectional view taken at a-a in fig. 3.
Fig. 5 is a schematic view of a double glazing unit.
FIG. 6 is a schematic view of the housing cover.
Fig. 7 is an overall schematic view of the condensation device.
Fig. 8 is an exploded view of the dewing device.
Fig. 9 is a schematic view of the collection box lid.
Fig. 10 is a schematic diagram of the present invention.
Reference numerals: 10-a radome; 11-a housing; 12-a shell cover; 121-an antenna cavity; 13-a rotation device; 20-double glazing; 21-inner layer glass; 211-a first gap; 212-a second gap; 22-outer layer glass; 30-an antenna; 31-an antenna mount; 40-a condensation device; 41-collecting box cover; 42-dew collection box; 43-a dew condensation plate; 50-a telescopic rod; b-incident direction of solar rays; c-the direction of air circulation in the radome.
Detailed Description
Example 1: as shown in fig. 1-10, a wind resistant retractable antenna structure includes a radome 10. A hollow channel is arranged on the side surface of the antenna housing 10, a double-layer glass piece 20 covers the hollow channel, and an air cavity is formed on the housing body of the antenna housing 10; the bottom of the antenna housing 10 is provided with a dewing device 40, an air duct is arranged on the dewing device 40, a dewing plate 43 is arranged in the air duct, and the dewing plate 43 is specifically a metal plate; the antenna housing 10, the double-layer glass piece 20 and the dewing device 40 enclose a closed accommodating space; the double-layer glass piece 20 is composed of an inner layer glass 21 and an outer layer glass 22 in sequence from the inside to the outside of the antenna cover 10; the top of the inner layer glass 21 is provided with a first gap 211 which forms a first channel for communicating the air cavity and the accommodating space; the bottom of the inner layer glass is provided with a second gap 212, the air duct of the dewing device 40 is arranged at the second gap, and the second gap 212 is matched with the air duct of the dewing device 40 to form a second channel for communicating the air chamber and the accommodating space. An antenna 30 is arranged in the accommodating space, and the antenna 30 is fixedly connected to the upper part of the accommodating space through an antenna bracket 31.
The dewing device 40 comprises a dew collection box 42, a collection box cover 41 is connected to the dew collection box 42, and an air channel is arranged between the dew collection box 42 and the collection box cover 41; the dew condensation plate 43 is connected on the dew collection box 42 and/or the collection box cover 41; a dew collection passage is provided between the air duct and the dew collection box 42.
In using the present invention, the double glazing 20 is first adjusted to face in the direction of the sunlight. On solar ray incided double glazing spare 20, after reflection, transmission and absorption, glass temperature rose under the radiation of light, simultaneously with the air in the air cavity carry out the heat transfer, the air that is heated rises, send heat in to the accommodation space by first passageway, the cold air in the accommodation space then gets into the air cavity via the second passageway, so forms the convection current circulation of air repeatedly, utilizes the whole temperature of the interior air of this kind of circulation promotion accommodation space.
By the air convection circulation, the cold air containing the salt mist can be conveyed to the condensation device 40, and the condensation plate 43 can further cool the cold air, so that the salt mist can be condensed on the condensation plate 43 at a fixed point. The condensation device 40 can reduce the concentration of moisture in the radome, thereby further reducing the possibility of condensation of salt mist on the antenna. The salt mist forms dew on the surface of the dew condensation plate 43, and finally enters the dew collection box 42 through the dew collection channel under the action of gravity, so that the dew is collected at fixed points. Of course, when the bottom of the accommodating space and the top of the collecting box cover 41 are inclined towards the cold air inlet of the air duct, the fixed-point collecting effect of the dew is the best.
The antenna 30 is arranged on the upper portion of the accommodating space, so that the water content of air can be improved, the temperature of the antenna 30, particularly the temperature of metal parts, can be improved, and the possibility of condensation of salt mist on the antenna 30 can be reduced. In addition, the temperature rise, assisted by the convection circulation of air, can form a dry environment on the surface of the antenna 30, and the electrochemical corrosion often occurs in a deliquescent environment, so the drying can destroy the conditions for generating the electrochemical corrosion. Meanwhile, the formed dry environment can inhibit the growth of microorganisms, so that the antenna is prevented from being corroded by the microorganisms in the salt fog.
Example 2: based on embodiment 1, the radome 10 includes a housing 11, an opening is disposed at a top of the housing 11, and a housing cover 12 is connected to the opening; inside the housing cover 12 is an antenna cavity 121, and the antenna 30 is disposed in the antenna cavity 121.
The horizontal position of the antenna cavity 121 in the case cover 12 is higher than that of the first channel, and when the antenna 30 is placed in the antenna cavity 31, the whole antenna can be ensured to be in a relatively high-temperature environment. In addition, by adopting the structure, the antenna is convenient for the user to maintain and clean the antenna in daily life. In order to ensure the sealing performance between the housing 11 and the housing cover 12, a sealing gasket may be disposed between the housing 11 and the housing cover 12, which is not described herein since it is a prior art solution.
Example 3: based on embodiment 2, the bottom of the housing 11 is connected with the rotating device 13, and the bottom of the rotating device 13 is fixedly connected with the telescopic rod 50; the housing 11 and the telescopic rod 50 can be rotated relatively by the rotating device.
The rotating device 13 is a manual device and comprises a rotating part and a base, a kinematic pair formed by the rotating part and the base adopts a low-pair rotating pair and is a sliding friction pair, and by adopting the structure, firstly, frictional resistance needs to be overcome in rotation, and therefore, the phenomenon that the antenna housing is improperly rotated due to external force, especially sea wind, is avoided, and secondly, the antenna housing and the telescopic rod can be coaxially arranged.
Example 4: based on the embodiment 1, the surface of the inner layer glass 21 on the side close to the antenna 30 is covered with a glass reflective film or a heat storage material.
By utilizing the glass reflective film or the heat storage material, the sunlight transmitted by the inner layer glass 21 can be reflected again, so that the heat gain of the accommodating space is reduced, the sunlight is obtained again by the air chamber, the temperature difference between the air in the air chamber and the air in the accommodating space is improved, the utilization efficiency of the double-layer glass piece 20 on the solar energy is increased, the overall temperature in the antenna housing 10 is improved, the air flow in the antenna housing 10 is accelerated, and the overall technical performance of the antenna is improved. For the heat storage material, the temperature difference can be further increased by reducing the heat exchange between the inner layer glass 21 and the air in the accommodating space.
Claims (10)
1. A windproof telescopic antenna structure comprises an antenna housing (10), and is characterized in that a hollow channel is arranged on the side surface of the antenna housing (10), a double-layer glass piece (20) covers the hollow channel, and an air cavity is formed on a housing body of the antenna housing (10); the bottom of the antenna housing (10) is provided with a dewing device (40), an air channel is arranged on the dewing device (40), and a dewing plate (43) is arranged in the air channel; the antenna housing (10), the double-layer glass piece (20) and the dewing device (40) enclose a closed accommodating space; the double-layer glass piece (20) consists of inner-layer glass (21) and outer-layer glass (22) in sequence from the inside to the outside of the radome; a first gap (211) is formed in the top of the inner layer glass (21) to form a first channel for communicating the air cavity and the accommodating space; the bottom of inner glass (21) is provided with second breach (212), and the wind channel setting of dewing device (40) is in second breach (212) department, and second breach (212) and the wind channel cooperation of dewing device (40) form the second passageway of intercommunication air cavity and accommodation space.
2. The windproof telescopic antenna structure according to claim 1, wherein an antenna (30) is disposed in the accommodating space, and the antenna (30) is fixedly connected to an upper portion of the accommodating space by an antenna bracket (31).
3. A windproof telescopic antenna structure according to claim 2, characterized in that the dewing device (40) comprises a dew collection box (42), a collection box cover (41) is connected to the dew collection box (42), and an air duct is provided between the dew collection box (42) and the collection box cover (41); the dew condensation plate (43) is connected to the dew collection box (42) and/or the collection box cover (41); a dew collection channel is arranged between the air channel and the dew collection box (42).
4. A wind resistant telescopic antenna structure according to claim 3, characterized in that said dewing plate (43) is embodied as a metal plate.
5. A windproof telescopic antenna structure according to claim 4, characterized in that the air duct between the dew-water collection box (42) and the collection box cover (41) is of a straight type, and the dew condensation plates (43) are staggered one above the other in the air duct.
6. A windproof telescopic antenna structure according to claim 5, characterized in that the radome (10) comprises a housing (11), an opening is provided at the top of the housing (11), and a housing cover (12) is connected to the opening; an antenna cavity is arranged in the shell cover (12), and the antenna (30) is arranged in the antenna cavity.
7. A windproof telescopic antenna structure according to claim 6, characterized in that a rotation device (13) is connected to the bottom of the housing (11), and a telescopic rod (50) is fixedly connected to the bottom of the rotation device (13); the shell (11) and the telescopic rod (50) can rotate relatively through the rotating device (13).
8. A wind resistant retractable antenna structure according to claim 7, characterized in that said housing (11) is removably fixed to said housing cover (12); the shell (11) and the dewing device (40) are fixedly connected in a detachable mode.
9. A wind resistant telescopic antenna structure according to claim 8, characterized in that said telescopic rod (50) is embodied as a hydraulic telescopic rod or a pneumatic telescopic rod.
10. A wind resistant retractable antenna structure according to any of claims 1-9, characterized in that the surface of the inner glass (21) on the side close to the antenna is covered with a glass reflective film or heat storage material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104422.5A CN112467332B (en) | 2020-10-15 | 2020-10-15 | Windproof retractable antenna structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104422.5A CN112467332B (en) | 2020-10-15 | 2020-10-15 | Windproof retractable antenna structure |
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| CN112467332A true CN112467332A (en) | 2021-03-09 |
| CN112467332B CN112467332B (en) | 2022-05-17 |
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| CN202011104422.5A Active CN112467332B (en) | 2020-10-15 | 2020-10-15 | Windproof retractable antenna structure |
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| CN112467332B (en) | 2022-05-17 |
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