JP2010012854A - Snow accretion preventive apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snow accretion preventive apparatus, heating an outer surface of a cover member without arranging any metallic material in a metal separating area of an onboard communication means, and preventing any snow accretion on the cover member. <P>SOLUTION: The snow accretion preventive apparatus 10 is provided on a vehicle 2 and performs the communication by using radio waves. At least a part thereof is arranged inside a metal separating area T of an onboard communication means 20 having the metal separating area T to prevent deposition of ice and snow on an outer surface 1a arranged inside the metal separating area T of a cover member 1 to cover the onboard communication means 20. A hot air blow-out unit 11 is provided which blows out hot air from an outer side of the metal separating area T toward the outer surface 1a of the cover member 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides the metal of the cover member which is provided in the vehicle and communicates using radio waves and which has at least a part inside the metal separation area of the vehicle communication means having a metal separation area and covers the vehicle communication means. The present invention relates to a snow accretion prevention device for preventing the adhesion of ice and snow on the outer surface disposed inside a separation area.

  Conventionally, on-board communication means such as an ATC (Automatic Train Control), an ATS (Automatic Train Stop), or a power receiver is installed in the lower part of a railway vehicle such as a Shinkansen (for example, a patent) Reference 1).

Since such on-vehicle communication means is configured to perform communication using radio waves with a ground element installed around the vehicle traveling track, there is a predetermined metal separation around the on-vehicle communication means. An area is provided. Therefore, the on-vehicle communication means is covered with a cover member made of a non-metallic material such as fiber reinforced plastic (FRP) that does not inhibit radio waves in the metal separation region.
JP-A-6-247309

  By the way, when the railway vehicle travels in a cold region, as shown in FIG. 3, ice and snow rolled up on the outer surface 21a of the cover member 21 covering the on-vehicle communication means 20 provided at the lower part of the vehicle. May accumulate and form a snow mass S. Thus, the snow mass S adhering to the cover member 21 may be peeled off and scattered from the cover member 21 during traveling to damage peripheral equipment and the like along the line.

  In order to prevent such scattering of the snow mass S, it is conceivable to heat with a heater in advance so that ice and snow do not adhere to the outer surface 21a of the cover member 21, but the heater is made of a metal material and may interfere with radio waves. And could not be disposed in the metal separation region T. Although it is conceivable that heating is performed from a heater installed outside the metal separation region T using heat conduction, the cover member 21 made of a non-metallic material such as FRP has a low heat conductivity and is difficult to transfer heat. It wasn't.

  The present invention has been made in view of such circumstances, and can heat the outer surface of the cover member without arranging a metal material in the metal separation region of the on-board communication means, and snow is applied to the cover member. An object of the present invention is to provide a snow accretion prevention device capable of preventing the above.

In order to achieve the above object, the present invention proposes the following means.
That is, the present invention provides a cover member that is provided in a vehicle and that communicates using radio waves and has a metal separation region and is disposed at least partially inside the metal separation region and covers the vehicle communication device. A snow accretion prevention apparatus for preventing adhesion of ice and snow on an outer surface disposed inside a metal separation region, comprising a blow-out portion that blows hot air from the outside of the metal separation region toward the outer surface of the cover member. And

  According to the snow accretion prevention device according to the present invention, since the blowout portion that blows hot air toward the outer surface of the cover member disposed inside the metal separation region from the outside of the metal separation region is provided, The outer surface of the cover member can be heated without arranging a metal material inside, and it is possible to prevent ice and snow from adhering to the outer surface. Further, even when icy and snow adheres to the outer surface of the cover member, the icy and snow can be removed at an early stage by heating the outer surface. Therefore, as in the prior art, ice and snow adhere to the outer surface of the cover member and gradually accumulate to form a snow mass, and the snow mass is prevented from peeling off and scattering around the vehicle.

Moreover, the snow accretion prevention apparatus which concerns on this invention WHEREIN: The said blowing part is good also as providing the blowing part which blows off air toward the said outer surface of the said cover member, and the heating part which heats air.
According to the snow accretion prevention device according to the present invention, since the ejection part blows out the air heated by the heating part toward the outer surface of the cover member, the outer surface of the cover member can be reliably heated, and snow is prevented.

Moreover, the snow accretion prevention apparatus which concerns on this invention WHEREIN: The said heating part is good also as being comprised so that the front-end | tip of the said ejection part may be heated.
According to the snow accretion prevention device according to the present invention, since the heating unit is configured to heat the tip of the ejection part, the tip of the ejection part is prevented from being frozen by ice and snow. Therefore, the blowing of air from the ejection part is performed stably.

  Further, in the snow accretion prevention device according to the present invention, the heating unit is configured to blow hot air, and a flow rate of air blown from the blowing unit is set faster than a flow rate of hot air blown from the heating unit. It may be done.

  According to the snow accretion prevention device according to the present invention, the flow velocity of the air blown from the ejection portion is set faster than the flow velocity of the hot air blown from the heating portion, so that the hot air blown toward the tip of the ejection portion is It is sent to the outer surface of the cover member so as to be drawn into the air ejected from the air, and the cover member is heated more reliably.

  According to the snow accretion prevention device according to the present invention, it is possible to heat the outer surface of the cover member without disposing a metal material inside the metal separation region of the on-board communication means, and it is possible to reliably snow on the outer surface of the cover member. Can be prevented.

  FIG. 1 is a side sectional view showing a schematic configuration of a snow accretion prevention device according to an embodiment of the present invention.

  On-board communication means such as an ATC (Automatic Train Control), an ATS (Automatic Train Stop), or a power receiver installed on the lower part of a railway vehicle such as a Shinkansen are installed on the ground around the vehicle running track. Communication is performed with radio waves using radio waves, and a predetermined metal separation region is provided around the on-board communication means.

  As shown in FIG. 1, the on-board communication means 20 has a metal separation region T centered on the on-board communication means 20, and is made of a non-metallic material such as fiber reinforced plastic (FRP) that does not inhibit radio waves. The substantially rectangular parallelepiped cover member 1 is covered. Further, the cover member 1 has a part of the outer surface thereof disposed inside the metal separation region T of the on-vehicle communication means 20.

  The snow accretion prevention device 10 of the present embodiment is disposed above the outside of the metal separation region T of the on-board communication means 20 at the lower part of the vehicle 2. The snow accretion prevention device 10 includes a blow-out portion 11 that blows hot air toward the outer surface 1a of the cover member 1 that is arranged inside the metal separation region T and extends in the vertical direction. The blowing part 11 has an opening 11a having a substantially cylindrical or substantially rectangular hole shape, and the opening 11a is formed to open toward the outer surface 1a of the cover member 1 disposed below.

Moreover, the blowing part 11 has the blowing part 12 which blows off air toward the outer surface 1a of the cover member 1, and the heating part 13 which heats air.
The ejection portion 12 is made of a deformable flexible hose made of metal, for example, and is formed in a substantially tubular shape. The base end of the ejection part 12 is connected to a compressor or the like (not shown), and is configured to be supplied with compressed air from the compressor and to eject air from the tip of the ejection part 12.

  The tip of the ejection part 12 is arranged along the outer surface 1a of the cover member 1 and is directed to the lower outer surface 1a, and the tip is disposed slightly above the lower end of the opening 11a. Yes. In addition, the ejection portion 12 is deformed so that the direction of the tip can be set in various ways. Although not shown, a valve and a control means electrically connected to the valve are provided in the vicinity of the base end of the ejection portion 12, and the ejection of air can be controlled as follows.

  As control for ejecting air from the ejection part 12, for example, speed information is obtained from the vehicle 2, and an optimum ejection pressure and ejection time for preventing snow accretion are set for each speed range, or near the tip of the ejection part 12. A temperature probe (not shown) can be installed, and the ejection pressure and ejection time can be set according to the temperature detected by the temperature probe. Moreover, it is good also as control which ejects air for every preset time interval using a timer. Moreover, it is good also as an operator ejecting air by manual operation.

  The heating unit 13 is installed below the ejection unit 12 and includes, for example, a defroster having a heater and a blower fan. The heating unit 13 heats air to form hot air, and serves as a heat source that supplies the hot air to the outside. Yes. Further, the tip portion of the heating unit 13 that blows hot air is disposed toward the tip of the ejection unit 12. Reference numeral 13 a denotes a mounting bracket that supports the heating unit 13. A drip-proof cover (not shown) is provided around the heating unit 13. The heating unit 13 is provided with a control means that is electrically connected, and the supply of hot air can be controlled as follows.

  As control for supplying hot air from the heating unit 13, for example, speed information is obtained from the vehicle 2, a heater output and a blower fan air volume that are optimal for preventing snow accretion are set for each speed range, or near the tip of the heating unit 13. A temperature probe (not shown) can be installed in the heater, and the heater output and the blower fan air volume can be set according to the temperature detected by the temperature probe. Moreover, it is good also as control which supplies a hot air for every preset time interval using a timer. Moreover, it is good also as an operator supplying hot air by manual operation.

  In addition, when a snow lump is formed on the outer surface 1a of the cover member 1, the snow lump is prevented from scattering and interposing at the point. You may control so that the ejection of air and supply of the hot air of the heating part 13 may be stopped. Also, when the vehicle traveling through the tunnel exits from the tunnel, the temperature of the outside suddenly drops to prevent the adhering snow mass from solidifying, so that the air in the squirting part 12 is not lost during the tunnel traveling. It is also possible to control so as to increase the supply of hot air and the supply of hot air from the heating unit 13.

  In addition, the flow rate of air blown from the tip of the ejection unit 12 is set to be faster than the flow rate of hot air blown from the heating unit 13. Further, the air ejected from the ejection part 12 is heated by the hot air blown from the heating part 13 so that the hot air is blown from the blowing part 11 toward the outer surface 1 a of the cover member 1.

  As described above, according to the snow accretion prevention device 10 of the present embodiment, since the blowout portion 11 that blows hot air from the outside of the metal separation region T toward the outer surface 1a of the cover member 1 is provided, the metal separation region T The outer surface 1a of the cover member 1 can be heated without arranging a metal material therein, and it is possible to prevent ice and snow from adhering to the outer surface 1a. Moreover, even when ice and snow adhere to the outer surface 1a of the cover member 1, the outer surface 1a can be heated to remove ice and snow at an early stage. Therefore, as in the prior art, ice and snow adhere to the outer surface 1 a of the cover member 1 and gradually accumulate to form a snow mass, and the snow mass is prevented from peeling off and scattering around the vehicle 2.

Moreover, since the air heated with the hot air of the heating part 13 blows off toward the outer surface 1a of the cover member 1 from the ejection part 12, the outer surface 1a of the cover member 1 can be heated reliably, and snowfall is prevented.
Moreover, since the hot air of the heating part 13 is comprised so that the front-end | tip of the ejection part 12 may be heated, it is prevented that the front-end | tip of the ejection part 12 freezes with ice and snow. Therefore, the blowing of air from the ejection part 12 is performed stably.

  In addition, since the flow velocity of the air blown out from the ejection portion 12 is set faster than the flow velocity of the hot air blown out from the heating portion 13, the hot air blown toward the tip of the ejection portion 12 is drawn into the air ejected from the ejection portion 12. It is sent to the outer surface 1a of the cover member 1 without waste, and the outer surface 1a is heated more reliably.

  Moreover, since the opening part 11a of the blowing part 11 is provided above the cover member 1 and opened downward, it is difficult for the ice and snow rolled up during traveling to enter the opening part 11a. Therefore, the opening 11a is reliably prevented from being blocked by ice and snow.

  Moreover, since the ejection part 12 is made deformable and the direction of the tip thereof can be set in various ways, the heating position of the outer surface 1a of the cover member 1 can be selected by simple adjustment. In addition, since the tip of the ejection part 12 is disposed slightly above the lower end of the opening 11a, the tip is covered with the opening 11a to make it difficult for ice and snow to adhere. It is prevented that 12 is obstructed.

  Moreover, since the blowing part 11 blows air and a hot air so that the outer surface 1a of the cover member 1 may be heated, for example, when the cover member 1 is heated from the inner surface, the thermal conductivity of the cover member 1 is low. As a result, the heating efficiency is not reduced and the adhesion of ice and snow cannot be prevented.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
For example, a plurality of ejection units 12 and heating units 13 may be provided.
The cover member 1 may be a non-metallic material made of a resin other than FRP.

  In the present embodiment, the heating unit 13 has been described as heating air to form hot air and mixing the hot air with the air ejected from the ejection unit 12, but the heating unit 13 ejects from the ejection unit 12. However, the present invention is not limited to this. For example, the periphery of the ejection part 12 is covered with a heating part 13 made of a heater or the like, and the ejection part 12 is heated from outside and the air flowing inside is heated to blow hot air. It does not matter as a configuration to be made.

  Moreover, in this embodiment, although demonstrated that the front-end | tip of the ejection part 12 was distribute | arranged so that the outer surface 1a of the cover member 1 may be arranged, it should just be set as the structure which blows off hot air toward the outer surface 1a of the cover member 1. However, the present invention is not limited to this. That is, for example, the tip of the ejection portion 12 is arranged at an obliquely upper portion separated from the outer surface 1a of the cover member 1, and hot air is blown out obliquely downward in the opposite direction of the obliquely upper portion to heat the outer surface 1a of the cover member 1. It does not matter as a structure to do.

Moreover, although this embodiment demonstrated that the heating part 13 heated the front-end | tip of the ejection part 12, it is not limited to this.
Moreover, in this embodiment, as control which ejects air from the ejection part 12, and control which supplies a hot air from the heating part 13, speed information is acquired from the vehicle 2 and it controls for every speed range, or temperature is controlled with a temperature probe. However, the present invention is not limited to this. For example, the presence or absence of a snow mass is detected and controlled using other optical probes or the like, and a monitoring monitor is used. Control may be performed by image detection.

Next, another example of the snow accretion prevention device will be described.
FIG. 2 is a side sectional view showing a schematic configuration of another example of the snow accretion prevention device.

  As shown in FIG. 2, the on-vehicle communication means 20 has a metal separation region T centering on the on-vehicle communication means 20, and the FRP that does not inhibit radio waves around the inside of the metal separation region T. It is covered with a substantially rectangular parallelepiped cover member 31. Further, a part of the outer surface of the cover member 31 is disposed inside the metal separation region T of the on-vehicle communication means 20.

  Further, a part of the cover member 31 in the vicinity of the on-vehicle communication means 20 is opened, and a cover part 31a of the cover member 31 is provided so as to cover the opened part (hereinafter referred to as “opening part”). The lid portion 31a is made of FRP and is formed in a substantially rectangular plate shape or a substantially circular plate shape, and a part thereof is disposed inside the metal separation region T. A substantially rectangular frame-like or substantially circular frame-like seal member 31b made of a non-metallic material and elastically deformable is provided between the lid portion 31a and the periphery of the opening portion of the cover member 31.

  The snow accretion prevention device 30 is disposed above the outside of the metal separation region T of the on-vehicle communication means 20 at the lower part of the vehicle 2. The snow accretion prevention device 30 includes a vibrating portion 32 that can vibrate the lid portion 31a of the cover member 31 in the front-rear direction (arrow D direction) in which the vehicle 2 travels.

  That is, the vibration part 32 is composed of, for example, a vibration motor using an eccentric weight, and has a shaft part 32a connected to the cover part 31a of the cover member 31, and vibrates the shaft part 32a in the direction of arrow D. It is configured. Reference numeral 32 b denotes a support member that supports the vibration unit 32. Further, a drip-proof cover (not shown) is installed around the vibration unit 32. Although not shown, the vibration unit 32 is provided with a control unit that is electrically connected, and the vibration of the vibration unit 32 can be controlled as follows.

  As the control for vibrating the vibration part 32, for example, speed information is obtained from the vehicle 2, and the optimum amplitude and frequency for snowfall prevention are set for each speed range, or the lid part 31a outside the metal separation region T is set. A temperature probe (not shown) can be installed in the vicinity, and the amplitude and frequency can be set according to the temperature detected by the temperature probe. Moreover, you may control to perform a vibration for every preset time interval using a timer. Moreover, it is good also as an operator vibrating the vibration part 32 by manual operation. Further, the vibration frequency of the vibration unit 32 is set outside the range of the natural frequency of the vehicle 2 measured in advance, and is controlled to stop the vibration when resonance occurs.

  In addition, in the unlikely event that a snow mass is formed on the outer surface of the lid portion 31a of the cover member 31, in order to prevent the snow mass from scattering and interposing at the point, vibration is generated when passing near the point. You may control so that the vibration of the part 32 may be stopped. In addition, the amplitude of the vibration part 32 during the tunnel travel is kept so that the attached snow mass does not harden due to a sudden drop in the outside air temperature when the vehicle traveling through the tunnel leaves the tunnel. The vibration time may be increased.

  As described above, according to the snow accretion prevention device 30, since the vibrating portion 32 that vibrates the lid portion 31a of the cover member 31 is provided, without arranging a metal material inside the metal separation region T, It is possible to prevent ice and snow from adhering to the outer surface of the lid portion 31a of the cover member 31. Further, even when ice and snow adhere to the outer surface of the lid portion 31a of the cover member 31, the ice and snow can be removed at an early stage by vibrating the lid portion 31a. Therefore, ice and snow are gradually deposited on the outer surface of the lid portion 31a of the cover member 31 to form a snow lump, and the snow lump is prevented from being separated and scattered around the vehicle 2.

  In addition, since the elastically deformable seal member 31b is provided between the lid portion 31a and the periphery of the opening portion of the cover member 31, the cover member 31 is also provided when the vibrating portion 32 vibrates the lid portion 31a. Airtightness between the inside and outside of the opening portion is sufficiently secured, and ice and snow are prevented from entering the inside of the cover member 31 from the opening portion.

  Note that the vibration unit 32 may be anything that can vibrate the lid 31a of the cover member 31, and is not limited to the vibration motor described above, and may be configured using, for example, an electromagnetic coil, a hydraulic piston, or an electric actuator. I do not care.

It is a sectional side view showing a schematic structure of a snow accretion prevention device concerning one embodiment of the present invention. It is a sectional side view which shows schematic structure of the snow accretion prevention apparatus of another example. It is a fragmentary sectional side view of a vehicle explaining the cover member which covers the conventional on-vehicle communication means, and the snow mass which accumulated on the outer surface of this cover member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover member 1a Outer surface 2 Vehicle 10 Snow prevention device 11 Blowing part 12 Blowing part 13 Heating part 20 On-vehicle communication means T Metal separation area

Claims (4)

The inside of the metal separation region of the cover member that is provided in the vehicle and communicates by using radio waves and has a metal separation region, the cover member covering at least a part of the metal separation region and covering the vehicle communication device A snow accretion prevention device for preventing the adhesion of ice and snow on the outer surface,
The snow accretion prevention apparatus characterized by including the blowing part which blows off hot air toward the said outer surface of the said cover member from the said metal separation area | region. The snow accretion prevention device according to claim 1,
The said blowing part is provided with the blowing part which blows off air toward the said outer surface of the said cover member, and the heating part which heats air, The snow accretion prevention apparatus characterized by the above-mentioned. A snow accretion prevention device according to claim 2,
The snow accretion prevention device, wherein the heating unit is configured to heat a tip of the ejection unit. The snow accretion prevention device according to claim 3,
The heating unit is configured to blow hot air,
The snow accretion prevention device, wherein a flow velocity of air blown from the ejection portion is set faster than a flow velocity of hot air blown from the heating portion.

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