JPS6022648Y2 - Snow melting device for antenna primary radiator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a snow melting device that melts and scatters ice, snow, and water droplets that adhere to the primary radiator opening of a communication antenna and cause radio wave interference.

Generally, a satellite communication antenna has a configuration in which a reflector 9 including a primary radiator 7 and a sub-reflector 10 is mounted on an antenna installation stand 11, as shown in FIG.

If ice, snow, or water droplets adhere to the primary radiator 7 and sub-reflector 10 of this antenna, there is a problem in that the radiation characteristics of the antenna deteriorate.

For this reason, hot air is sent from the blower 1 through the blow pipe 4 to prevent ice, snow, and water droplets from adhering.

Conventionally, this snow melting device has a structure in which a blower 1 and a heat generating part 2 are integrated and connected to a blower outlet 3 of a primary radiator 7 by a blower pipe 4, as shown in FIGS. 2a and 2b.

In this structure where the heat generating part 2 and the air outlet 3 are separated from each other, heat loss due to the air pipe 4 is extremely large.

To prevent this, a heat insulating material 4' was wrapped around the blast pipe 4, and the heat generating part 2 was installed immediately after the main reflecting mirror 9 to shorten the length of the pipe 4.

Even with this, heat loss is large and a large capacity heat generating part 2 is required, and since the blast pipe 4 is wrapped with a heat insulating material 4', the pipe becomes thick and cannot be bent, making piping work difficult.

In addition, since the location where the blower 1 and the heat generating part 2 are installed is where the antenna transmitter/receiver is stored, the size to which the blower 1 and the heat generating part 2 can be installed is limited. In addition, increasing the wind speed will lower the wind temperature, so high-velocity hot air is injected from the outlet 3 in order to melt snow and snow adhering to the cover 8 of the primary radiator 7 and blow away water droplets. It was impossible to do so.

To solve this problem, it would be possible to increase the heat generation capacity and use a powerful blower, but this method requires increased power consumption, weight, and larger equipment, and requires more space for installation.
There were problems such as an increase in production costs.

The purpose of this invention is to solve these problems and to improve thermal efficiency by separating the blower and heat generating part, miniaturizing the heating element, and placing it close to the outlet of the primary radiator. Our objective is to provide snow melting equipment.

The present invention will be explained in detail below with reference to the drawings.

Figures 3a and 3b are a side view and a front view of an embodiment of the present invention.

As shown in the figure, the heat generating part 2 is placed at the tip of the primary radiator 7, separated from the blower 1.

As shown in the cross-sectional view of FIG.
This is a device for controlling the temperature of this heating element 5.

First, air sent by the blower 1 passes through the blower pipe 4 and enters the heat generating part 2, where it is heated by the heat generating element 5, and hot air is injected from the outlet 3 to melt the ice and snow adhering to the cover 8 of the primary radiator 7. , has a structure that blows away water droplets.

Since the blower 1 and the heat generating part 2 are thus separated and there is no heat loss due to the blower pipe 4, the blower pipe 4 can be freely arranged without reducing the snow melting ability.

According to this invention, the heavy blower 1 is not attached to the antenna, but is installed on the ground, etc., and the flexible blower pipe 4 is connected to make the antenna smaller and lighter, and it can also be used as a portable antenna. You can also do it.

As explained above, by directly connecting the heat generating part to the air outlet of the primary radiator, the air heated by the heat generating part is immediately injected, resulting in good thermal efficiency, requiring only a small capacity of the heat generating element, and reducing heat loss in the air pipe. Since there is no heat insulating material, piping work becomes easier.

In addition, the installation location of the blower is not restricted and can be placed freely.Furthermore, the heating element is smaller, which allows the entire device to be more compact, and power consumption is reduced, resulting in significant effects such as weight and cost reductions. be.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of a conventional antenna, Figures 2a and b are side and front views of a conventional snow melting device for a primary radiator, and Figures 3a and b are side and front views of an embodiment of the present invention. , FIG. 4 is an enlarged cross-sectional view of FIG. 3. In the figure, 1...Blower, 2...Heating part, 3...Air outlet, 4...Blow pipe,
4'...Insulating material, 5...Heating element, 6.
...Temperature control device, 7...Primary radiator,
8... - secondary radiator cover, 9... main reflecting mirror.

Claims (1)

[Scope of utility model registration request] Antenna - A tip member provided around the radiator and having a plurality of air outlets formed in a tube bent into a semicircle, a heating element provided in the tip member, and a temperature regulating element for adjusting the temperature of the heating element. 1. A snow melting device for an antenna-substrate, characterized by comprising a temperature control device, a blower pipe connected to the tip member, and a blower that sends air to the blower pipe.