Snow melting and deicing composite heating structure for reflecting surface of satellite antenna

Abstract

The utility model discloses a snow melting and deicing composite heating structure of a satellite antenna reflecting surface. The snow melting and deicing composite heating structure comprises an antenna main reflecting surface and an antenna auxiliary reflecting surface, a feed source is arranged in the near end of the antenna main reflecting surface; the antenna auxiliary reflecting surface is provided with a connecting support frame; a heating film module is arranged on the back surface of the antenna main reflecting surface, and the heating film module structurally comprises a heat conversion layer, a heat source, a heat reflecting layer, an oak insulating layer, a heat transmission layer and an aluminum-plastic plate from inside to outside in sequence; by installing the heating film module, when the antenna is used in cold weather, radiant heat can be emitted after fibers in a heat source are electrified, the temperature is transmitted to the reflecting surface of the antenna through the heat conversion layer for temperature conduction, and meanwhile the heat conversion layer can store the temperature for use; therefore, snow and frozen ice accumulated in the reflecting surface of the antenna are melted in cold weather, the normal gain of the antenna is recovered, and the change of an antenna aperture function caused by excessive accumulated snow is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field related to parabolic satellite antennas, and in particular relates to several parabolic satellite antenna reflective surface snow-melting and ice-removing composite heating structures. Background Art

[0002] The parabolic satellite signal antenna equipment, also known as the satellite receiver, consists of a main and sub-reflector, a feed source and a servo system. The sub-reflector is installed directly above the main reflector and connected to the main reflector using a bracket to form a secondary focusing hyperboloid geometry for the receiver to receive satellite signals in the sky. However, in cold and severe weather, snow and ice will accumulate inside the main reflector of the satellite antenna, causing the main parabola aperture field to change, the secondary focusing hyperboloid geometry to be destroyed, resulting in a reduction in the antenna receiving gain and interference with its normal communication. Utility Model Content

[0003] The purpose of the utility model is to provide a composite heating structure for melting snow and removing ice on the reflective surface of a satellite antenna, so as to solve the problem proposed in the above-mentioned background technology that snow will accumulate and ice will form inside the inclined satellite dish in cold and severe weather.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a satellite antenna reflector surface snow melting and deicing composite heating structure, comprising an antenna main reflector surface and an antenna sub-reflector surface;

[0005] A feed source is disposed inside the proximal end of the main reflective surface of the antenna;

[0006] The antenna sub-reflector has a connecting support frame;

[0007] A heating film module is arranged on the back of the main reflection surface of the antenna. The structure of the heating film module is, from the inside to the outside, a heat conversion layer, a heat source, a heat reflection layer, an oak insulation layer, a heat transmission layer and an aluminum-plastic plate.

[0008] Preferably, the heat conversion layer is fixed to the main reflective surface of the antenna and the back of the secondary reflective surface of the antenna by gluing, and has a high emissivity ε≈0.96 and a low thermal conductivity {0.35.W / m·K} to store radiant heat and convert conductive heat. The heat source is fixed to the outside of the heat conversion layer by gluing to provide far-infrared radiant heat generated by free electrons exciting molecular Brownian motion gain.

[0009] Preferably, the heat reflecting layer is fixed to the outside of the heat source by gluing, and with its low transmittance Qτ≈0, it reflects the far-infrared radiation heat emitted to the outside and transfers it to the inside. The oak insulation layer is fixed to the outside of the heat reflecting layer by gluing to isolate the conduction heat transfer to the outside.

[0010] Preferably, the aluminum-plastic plate is fixed to the reinforcing ribs with rivets to stabilize the position of each functional layer of the heating film module, a foaming agent is used to fill between the aluminum-plastic plate and the oak insulation layer, and the heat transmission layer is fixed to the outside of the heat reflection layer by gluing.

[0011] Preferably, a positioning block is fixedly connected to the inner side of the main reflection surface of the antenna, and a limiting block is arranged outside the positioning block.

[0012] Preferably, a waterproof plate is fixedly connected to the outside of the limit block to prevent rainwater from contacting the inner wall of the main reflection surface of the antenna, and a rubber pad is fixedly connected to the outside of the waterproof plate near the upper side to isolate the penetration of rainwater.

[0013] Preferably, through positioning holes are provided inside the limit block and the positioning block, and fixing screws are threadedly connected inside the positioning holes to limit the position between the limit block and the positioning block.

[0014] Preferably, a through hole is opened inside the waterproof plate for the band receiver to pass through, and a rubber sleeve is sleeved outside the through hole to fill the gap between the band receiver and the through hole.

[0015] Compared with the prior art, the utility model provides a composite heating structure for melting snow and deicing the reflective surface of a satellite antenna, which has the following beneficial effects:

[0016] 1. By installing a heating film module, when used in cold weather, the fiber filaments inside the heat source can be electrified to emit radiant heat, and the temperature is transferred to the antenna reflective surface through the heat conversion layer for temperature conduction. At the same time, the heat conversion layer can preserve the temperature for use, so that the snow and ice accumulated inside the antenna reflective surface in cold weather melt, restore the normal gain of the antenna, and prevent excessive snow accumulation from causing changes in the antenna aperture function. Carbon-based heating materials,

[0017] 2. Through electron excitation of polymer carbon-based materials, the Brownian motion of its molecules is intensified, generating far-infrared radiation heat. The frequency band of this radiation heat electromagnetic wave is higher than the transmission frequency band of the satellite antenna, so it does not interfere with the normal communication of the antenna. It has low energy consumption during operation, fast heating speed, and a wide working environment temperature range. It can quickly generate heat to melt the snow and ice on the antenna surface.

[0018] 3. By adding two layers of composite materials, namely far-infrared electromagnetic wave insulation material and silica thermal insulation material, it can effectively prevent the rapid loss of radiant heat and conductive heat, so that it has high thermal insulation capacity and engineering dimensionality reduction ability. The heat from ice and snow removal is not easily lost and can be transmitted in a single direction.

[0019] 4. The heating film module is designed in a modular way. During installation and production, it can be customized according to the size and depth of the reinforcing rib grille on the back of the satellite antenna reflective surface. During production, the corresponding power coefficient can be configured according to the specific module size. During installation, it can be quickly located and installed according to the number printed during production. When replaced, the damaged position can be detected according to the real-time data of the temperature control device, and replaced according to the number of the damaged position, which facilitates maintenance and positioning while saving detection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of a composite heating structure for melting snow and deicing on a satellite antenna reflector surface.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the aluminum-plastic panel area of ​​the utility model.

[0022] Figure 3 The utility model is a schematic diagram of the front cross-sectional structure of a composite heating structure for melting snow and deicing on a satellite antenna reflector surface.

[0023] Figure 4 It is a schematic diagram of the partial structure of the front cross-section of the waterproof board area of ​​the utility model.

[0024] Figure 5 It is a schematic diagram of the partial structure of the front cross-section of the waterproof board area of ​​the utility model.

[0025] Figure 6 It is a schematic structural diagram illustrating the working principle of the utility model.

[0026] Figure 7 It is a schematic structural diagram illustrating the working principle of the utility model.

[0027] In the figure: 1. fixing seat; 2. aluminum-plastic plate; 3. feed source; 4. support frame; 5. waterproof board; 6. band receiver; 7. heat reflection layer; 8. reinforcing ribs; 9. heat conversion layer; 10. heat source; 11. oak insulation layer; 12. heat transmission layer; 13. main reflective surface of antenna; 14. fixing screws; 15. positioning holes; 16. limit blocks; 17. positioning blocks; 18. rubber pads; 19. through-holes; 20. rubber sleeves; 21. heating film modules; 22. heating modules; 23. control cabinet; 24. power cord; 25. conversion box; 26. auxiliary air duct; 27. secondary reflective surface of antenna. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model provides Figure 1-3 A satellite antenna reflector surface deicing and snow removal composite heating structure is shown, comprising an antenna main reflector surface 13 and an antenna sub-reflector surface 27;

[0030] A feed source 3 is disposed inside the proximal end of the antenna main reflector 13;

[0031] The antenna sub-reflector 27 is connected to the support frame 4;

[0032] A heating film module 21 is arranged on the back of the main reflecting surface 13 of the antenna. The structure of the heating film module 21 is, from the inside to the outside, a heat conversion layer 9, a heat source 10, a heat reflecting layer 7, an oak insulation layer 11, a heat transmission layer 12 and an aluminum-plastic plate 2. The aluminum-plastic plate 2 is fixed by rivets, and the heating film module 21 is fixed to the back of the antenna. The polymer carbon fiber filaments inside the heat source 10 contained in the heating film module 21 will be excited to generate radiant heat by molecular Brownian motion after being energized. The radiant heat will be transferred to the antenna reflecting surface 131 by heat conduction through the heat conversion layer 9. During the operation, no electromagnetic waves and their frequency doublings that may affect the antenna reception will be generated.

[0033] like Figure 1 and Figure 2 As shown, the heat conversion layer 9 is fixed on the back of the main reflective surface 13 of the antenna and the secondary reflective surface 27 of the antenna by gluing, and has a high emissivity ε≈0.96 and a low thermal conductivity {0.35W / m·K} to store radiant heat and convert conduction heat exchange. The heat source 10 is fixed on the outside of the heat conversion layer 9 by gluing to provide far-infrared radiant heat generated after the free electron excitation molecular Brownian motion gain. The heat reflection layer 7 is fixed on the outside of the heat source 10 by gluing to reflect the far-infrared radiant heat emitted to the outside with its low transmittance Qτ≈0, so that it is transferred to the inside. The oak insulation layer 11 is fixed on the outside of the heat reflection layer 7 by gluing to isolate the conduction heat transfer to the outside. The aluminum-plastic panel 2 is fixed on the reinforcing rib 8 by rivets to stabilize the position of each functional layer of the heating film module 21. The aluminum-plastic panel 2 and the oak insulation layer 11 are filled with a foaming agent. The heat transmission layer 12 is fixed on the outside of the heat reflection layer 7 by gluing.

[0034] The grid frame formed by the arrangement of reinforcing ribs 8 is the installation frame of the heating film module 21. The heat transmission layer 12 is fixedly connected to the heat source 10 and the heat conversion layer 9 by heat pressing. The heat transmission layer 12 can block the penetration of external water molecules to achieve waterproofing and insulation. The oak insulation layer 11 is made of silica material to isolate the heat exchange between the conductive heat and the outside temperature. The heat reflection layer 7 is made of far-infrared electromagnetic wave blocking material to isolate the radiant heat from the outside. Heat exchange, while achieving engineering heat transfer dimensionality reduction, so that heat only moves to the back of the antenna.

[0035] like Figure 3 and Figure 4 As shown, a positioning block 17 is fixedly connected to the inside of the main reflective surface 13 of the antenna, a limiting block 16 is arranged outside the positioning block 17, a waterproof plate 5 is fixedly connected to the outside of the limiting block 16 to prevent rainwater from contacting the inner wall of the main reflective surface 13 of the antenna, a rubber pad 18 is fixedly connected to the outside of the waterproof plate 5 near the upper side to isolate the penetration of rainwater, a through positioning hole 15 is provided inside the limiting block 16 and the positioning block 17, a fixing screw 14 is threadedly connected inside the positioning hole 15 to limit the position between the limiting block 16 and the positioning block 17, a through opening 19 is provided inside the waterproof plate 5 for the band receiver 6 to pass through, and a rubber sleeve 20 is sleeved outside the through opening 19 to fill the gap between the band receiver 6 and the through opening 19.

[0036] When installing the antenna, after the limit blocks 16 at both ends of the waterproof plate 5 are abutted against the positioning blocks 17, the band receiver 6 passes through the rubber sleeve 20 and is close to the rubber sleeve 20, and then the fixing screws 14 are passed through the inside of the positioning hole 15 to fix the positioning block 17 and the limit blocks 16 to reduce the gap between the two, and a rubber pad 18 abutting the main reflective surface 13 of the antenna is provided on the lower side of the gap to prevent rainwater from penetrating from the gap and contacting the main reflective surface 13 of the antenna.

[0037] like Figure 3 As shown, a heating module 22 is arranged outside the fixing seat 1, and the heating module 22 includes a control cabinet 23, a power cord 24, a conversion box 25 and an auxiliary air duct 26. A conversion box 25 and a control cabinet 23 are arranged inside the central control box and near the upper and lower ends respectively. The power cord 24 is fixedly connected inside the conversion box 25 and the control cabinet 23, and the other end of the main air duct is fixedly connected to the auxiliary air duct 26.

[0038] The implementation principle of this embodiment is: when the antenna receives signals through the feed source 3 and the band receiver 6 in heavy snow weather, the surface of the main reflection surface 13 of the antenna can be heated by the heat source 10 in the heating film module 21, and the radiant heat generated by the heat source 10 is transferred to the heat conversion layer 9 to conduct the heat to the reflection surface of the main reflection surface 13 of the antenna, and when the heat source 10 is electrically connected to an external power supply, a temperature controller and a sensor are provided to control the heat temperature of the heat source 10.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A satellite antenna reflector surface snow-melting and de-icing composite heating structure, comprising a central control box, a fixing seat (1), an antenna main reflector surface (13) and an antenna secondary reflector surface (27); A feed source (3) is disposed inside the proximal end of the main reflective surface (13) of the antenna; The antenna sub-reflecting surface (27) has a connecting support frame (4); Features: A heating film module (21) is arranged on the back side of the main reflection surface (13) of the antenna, and the structure of the heating film module (21) is, from the inside to the outside, a heat conversion layer (9), a heat source (10), a heat reflection layer (7), an oak insulation layer (11), a heat transmission layer (12) and an aluminum-plastic plate (2).

2. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 1, characterized in that: The heat conversion layer (9) is fixed to the back of the antenna main reflection surface (13) and the antenna secondary reflection surface (27) by adhesive, and has a high emissivity and a low thermal conductivity to store radiant heat and convert conductive heat. The heat source (10) is fixed to the outside of the heat conversion layer (9) by adhesive to provide far-infrared radiant heat generated after free electrons excite molecular Brownian motion gain.

3. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 1, characterized in that: The heat reflecting layer (7) is fixed to the outside of the heat source (10) by gluing, and reflects the far-infrared radiation heat emitted to the outside with its low transmittance so that it is transferred to the inside. The oak insulation layer (11) is fixed to the outside of the heat reflecting layer (7) by gluing to isolate the heat transfer to the outside by conduction.

4. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 1, characterized in that: The aluminum-plastic panel (2) is fixed to the reinforcing rib (8) by rivets to stabilize the position of each functional layer of the heating film module (21), a foaming agent is used to fill between the aluminum-plastic panel (2) and the oak insulation layer (11), and the heat transmission layer (12) is fixed to the outside of the heat reflection layer (7) by gluing.

5. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 1, characterized in that: A positioning block (17) is fixedly connected to the inner side of the main reflection surface (13) of the antenna, and a limiting block (16) is arranged on the outer side of the positioning block (17).

6. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 5, characterized in that: The outer side of the limit block (16) is fixedly connected to a waterproof plate (5) to prevent rainwater from contacting the inner wall of the main reflection surface (13) of the antenna, and the outer side of the waterproof plate (5) is fixedly connected to a rubber pad (18) near the upper side to prevent rainwater from penetrating.

7. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 5, characterized in that: A through positioning hole (15) is provided inside the limit block (16) and the positioning block (17), and a fixing screw (14) is threadedly connected inside the positioning hole (15) to limit the position between the limit block (16) and the positioning block (17).

8. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 6, characterized in that: The waterproof plate (5) is provided with a through hole (19) inside for the band receiver (6) to pass through, and the through hole (19) is sleeved with a rubber sleeve (20) outside to fill the gap between the band receiver (6) and the through hole (19).

9. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 1, characterized in that: A heating module (22) is arranged outside the fixing seat (1), and the heating module (22) includes a control cabinet (23), a power cord (24) and a conversion box (25). A conversion box (25) and a control cabinet (23) are arranged inside the central control box and near the upper and lower ends respectively.

10. The satellite antenna reflector surface snow melting and deicing composite heating structure according to claim 9, characterized in that: The conversion box (25) and the control cabinet (23) are fixedly connected with a power line (24).

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