JP5740601B2 - Freezing prevention method and freezing prevention device - Google Patents

Description

  The present invention relates to an antifreezing method and an antifreezing device, and more particularly to an antifreezing method and an antifreezing device for water pipes, faucets, valves, and the like.

As one type of this type of antifreezing device, Japanese Patent Application Laid-Open No. 2003-068430 discloses an antifreezing device in which a heater mat is attached to the inner peripheral wall surface of a cylindrical body made of foamed plastic. In this cylindrical body, a slit reaching from the outer peripheral wall surface to the inner peripheral wall surface is formed along the axial direction of the cylindrical body.
According to this anti-freezing device, the cylindrical body can be expanded from the slit and placed on the water pipe, and the water pipe can be heated by energizing the heater mat to prevent the water pipe from freezing.

Japanese Patent Laid-Open No. 2003-068430

  The heater mat in the conventional anti-freezing device described above incorporates a heating wire made of nickel-chromium alloy, nickel-copper alloy, nickel-iron alloy or the like as a heat source. An anti-freezing device that uses this type of heating wire as a heat source consumes a large amount of power, and thus the cost of anti-freezing increases.

Also, as a method of using this type of antifreezing device, it is usually operated only at night when the outside air temperature decreases, and is not operated during the day when the outside air temperature rises to save power. For this reason, the user may forget to operate the freeze prevention device at night or to stop the operation during the day, which is inconvenient.
In view of such problems, the present invention has an object to provide an anti-freezing method and an anti-freezing device that consumes less power and is easy to use.

The anti-freezing method according to the invention of claim 1 uses a belt-like heating element configured by covering a chip row in which a plurality of LED chips are arranged as a heat source with a coating material made of soft plastic or synthetic rubber , A freezing of the object to be frozen is prevented by bringing a belt-like heating element into close contact with the object to be frozen.

According to a second aspect of the present invention, in the freeze prevention method according to the first aspect, the covering material has translucency.

According to a third aspect of the present invention, in the freeze prevention method according to the first aspect, the plurality of LED chips are mounted on a flexible printed wiring board to form the chip row.

According to a fourth aspect of the present invention, in the freeze prevention method according to the first aspect, the plurality of LED chips are connected by lead wires to form the chip row.

The invention according to claim 5, the connecting portion of the antifreeze method, a heating element, and a cord that connects the heating element with a power supply circuit for lighting control of the LED chips, the heating element and the cord according to claim 1 wherein each be imparted with waterproof performance and.

According to a sixth aspect of the present invention, there is provided the antifreezing device according to the present invention, wherein a cylindrical body formed of translucent foamed plastic and a chip array in which a plurality of LED chips are arranged as a heat source are made of soft plastic or synthetic rubber. Equipped with a belt-like heating element configured by covering with material,
A heating element is mounted on the inner peripheral wall surface of the cylindrical body so as to extend along the axial direction of the cylindrical body, and the LED chip is mounted so as to face the inner wall surface of the cylindrical body,
A slit reaching the inner peripheral wall surface from the outer peripheral wall surface of the cylindrical body is formed along the axial direction of the cylindrical body,
It is characterized in that the cylindrical body can be expanded from the slit so as to be covered with a pipe material which is an object to be prevented from freezing.

According to the anti-freezing method according to claim 1, since an LED with low power consumption is used as a heat source instead of a heating wire with high power consumption, freezing prevention objects such as water pipes can be frozen at low cost. Can be prevented.
Further, since the heating element is configured by covering the chip array with soft plastic or synthetic rubber, the heating element has flexibility and flexibility. For this reason, the heating element can be wrapped around or pasted on a freeze prevention target such as a water pipe, and when it is wound or pasted, the heating element can be brought into contact with the freeze prevention target without any gaps. In general, it is conducted to the object to be frozen.

  According to the anti-freezing method of the second aspect, since the covering material covering the LED chip row has translucency, it can be easily recognized by the light emission of the LED chip that the heating element is energized. Therefore, it is possible to prevent forgetting the energization operation.

  According to the third aspect of the present invention, a chip array formed by mounting a plurality of LED chips on a flexible printed wiring board is generally provided on the market as illumination means. The manufacturing cost can be reduced.

  According to the fourth aspect of the present invention, the LED chip is connected by the lead wire to form the chip row. Therefore, the configuration is simple, and the manufacturing cost of the heating element can be reduced.

  According to the fifth aspect of the present invention, it is possible to prevent freezing of an object to be prevented from freezing in water or an object to be prevented from freezing that easily generates water droplets when the outside air temperature rises during the daytime.

According to the anti-freezing device according to the sixth aspect of the present invention, the pipe material can be prevented from freezing with less power consumption due to the heat retaining effect of the cylindrical body made of foamed plastic.
The cylindrical body is molded with translucent foamed plastic, and the LED chip is placed so as to face the inner peripheral wall surface of the cylindrical body, so that the light emission of the LED chip can be seen from the outside of the cylindrical body, and the anti-freezing device operates. Confirmation becomes easier.
Further, since the cylindrical body can be expanded from the slit, the work of covering the cylindrical body on the pipe material is facilitated, and the present invention can be applied to a plurality of types of pipe materials having different diameters.

It is a fragmentary top view which shows the strip | belt-shaped heat generating body used for the freezing prevention method which concerns on 1st Example of this invention. It is sectional drawing cut | disconnected from the 2-2 line | wire of FIG. It is explanatory drawing which shows the usage method of the same strip | belt-shaped heat generating body. It is a perspective view which shows the freezing prevention apparatus used for the freezing prevention method which concerns on 2nd Example of this invention. It is sectional drawing cut | disconnected from the 5-5 line | wire of FIG. It is sectional drawing which shows the usage method of the freezing prevention apparatus. It is a partial top view which shows the strip | belt-shaped heat generating body used for the freezing prevention method which concerns on 3rd Example of this invention. It is sectional drawing cut | disconnected from the 8-8 line | wire of FIG.

  The present invention will be described below with reference to the drawings. 1 to 3 show a belt-like heating element 10 used in the freeze prevention method according to the first embodiment of the present invention. The belt-like heating element 10 includes a flexible printed wiring board 12 on which a plurality of LED chips 11 are mounted. The plurality of LED chips 11 are arranged along the longitudinal direction of the flexible printed wiring board 12 to form a single row of chips. A power supply circuit 13 that supplies power to each LED chip 11 and controls the lighting of the LED chip 11 is connected to the flexible printed wiring board 12 via a power cord 14.

  Both the front and back surfaces of the flexible printed wiring board 12 are covered with a covering material 15 made of thermoplastic transparent soft polyvinyl chloride including the LED chip 11 mounted on the board 12. In this covering material 15, the electric wire 14 a exposed from the vinyl insulator at the connection portion between the power cord 14 and the flexible printed wiring board 12, that is, the tip portion of the power cord 14 is soldered to the printed wiring 12 a of the flexible printed wiring board 12. The covered portion 12b is also covered.

  The configuration of the belt-like heating element 10 is as described above, and in the anti-freezing method according to the first embodiment, as shown in FIG. 3, the belt-like heating element 10 is spirally formed on the water pipe 16 that is the object of anti-freezing. It winds and the front-end | tip part and base end part of the strip | belt-shaped heat generating body 10 are fixed to the water pipe 16 with the adhesive tape 17. FIG. When power is supplied from the power supply circuit 13 to the LED chip 11, the LED chip 11 emits light. The LED chip 11 generates heat with light emission, the water pipe 16 is heated, and the water pipe 16 is prevented from freezing.

  According to the anti-freezing method according to the first embodiment, the LED chip 11 with low power consumption is used as the heat source instead of the heating wire with high power consumption. Can be prevented from freezing.

  Since the belt-like heating element 10 is configured by covering the chip row with the soft vinyl chloride 15, the belt-like heating element 10 has flexibility and flexibility. Therefore, when the belt-like heating element 10 is wrapped around a freezing prevention object such as a water pipe 16, the belt-like heating element 10 contacts the water pipe 16 or the like without a gap, so that the heat generated by the LED chip 11 is efficiently applied to the water pipe 16 or the like. It is transmitted.

  Since the chip array of the flexible printed wiring board 12 and the LED chip 11 is covered with the transparent vinyl chloride 15, it can be easily recognized by the light emission of the LED chip 11 that the belt-like heating element 10 is energized. Therefore, it is possible to prevent forgetting the energization operation.

  Since a chip row formed by mounting a plurality of LED chips 11 on the flexible printed wiring board 12 is generally provided on the market as illumination means, the use of this makes it possible to reduce the manufacturing cost of the belt-like heating element 10. be able to.

  Since the power cord 14 is inherently waterproof, the chip array of the flexible printed circuit board 12 and the LED chip 11 is covered with vinyl chloride including the connecting portion between the substrate 12 and the power cord 14. The belt-like heating element 10 is waterproof. Therefore, even if the outside air temperature rises in the daytime and water droplets are generated in the water pipe 16, the belt-like heating element 10 will not leak and cause no malfunction.

  4 to 6 show a freeze prevention device 20 used in a freeze prevention method according to a second embodiment of the present invention. The anti-freezing device 20 includes a translucent white foamed polyurethane cylinder 21 and a belt-like heating element 10 used in the anti-freezing method of the first embodiment.

  A groove 21a extending along the axial direction of the cylindrical body 21 is formed on the inner peripheral wall surface of the cylindrical body 21, and the belt-like heating element 10 is fitted into the groove 21a. The belt-like heating element 10 is fitted so that the LED chip 11 faces the inner wall surface of the cylindrical body 21. In the cylindrical body 21, slits 21 b reaching from the outer peripheral wall surface to the inner peripheral wall surface are formed along the axial direction of the cylindrical body 21.

  The structure of the anti-freezing device 20 is as described above. The cylindrical body 21 is expanded from the slit 21b and covered with the water pipe 16, and the tape 22 is attached to the slit 21 to attach the cylindrical body 21 to the water pipe. It attaches to 16 and it supplies with electricity to the LED chip 11 from the power supply circuit 13, and heats the water pipe 16. FIG.

  According to the freeze prevention method according to the second embodiment, the water pipe 16 can be prevented from freezing with less power consumption due to the heat retaining effect of the cylindrical body 21 made of foamed plastic.

  Since the LED chip 11 is disposed so as to face the inner peripheral wall surface of the cylindrical body 21, the light emission of the LED chip 11 can be visually recognized from the outside of the cylindrical body 21, and the operation of the freeze prevention device 20 can be easily confirmed.

  Since the cylindrical body 21 can be expanded from the slit 21b, the work of covering the cylindrical body 21 on the water pipe 16 is facilitated, and the present invention can be applied to a plurality of types of water pipes 16 having different diameters.

7 and 8 show a belt-like heating element 30 used in the freeze prevention method according to the third embodiment of the present invention. The belt-like heating element 30 is formed by connecting a plurality of LED chips 31 with lead wires 32 to form a chip row, and covering the chip row with a thermoplastic transparent soft vinyl chloride covering material 33. ing. The covering material 33 also covers the electric wire 14 a of the power cord 14 connected to the lead wire 32.
In addition, since the other structure of the strip | belt-shaped heating element 30 used for the freezing prevention method which concerns on 3rd Example is the same as the strip | belt-shaped heating element 10 used for the freezing prevention method which concerns on 1st Example, it is the same component. The same reference numerals are given and description thereof is omitted.

  The belt-like heating element 30 used in the anti-freezing method according to the third embodiment has a simple structure because the LED chip 31 is connected by the lead wire 32 to form a chip row. Therefore, the manufacturing cost of the belt-like heating element 30 is reduced. Can be reduced.

  In the belt-like heating elements 10 and 30 described above, a thermoplastic transparent transparent vinyl chloride is used for the chip rows as the covering materials 15 and 33. As the covering materials 15 and 33, thermoplastic materials such as polyethylene, polystyrene, and polypropylene are used. Or a synthetic rubber such as butadiene rubber or styrene-butadiene rubber.

  In the belt-like heating elements 10 and 30 described above, one chip row is covered with the covering materials 15 and 33. However, by forming a large number of chip rows and covering them with the covering materials 15 and 33, a mud heating element is formed. Can also be formed. By using a mat-like heating element, it is possible to prevent freezing of a freezing prevention object having a large surface area.

DESCRIPTION OF SYMBOLS 10, 30 ... Strip | belt-shaped heat generating body 20 ... Freezing prevention apparatus 11, 31 ... LED chip 12 ... Flexible printed wiring board 13 ... Power supply circuit 14 ... Power supply cord 15, 33 ... Cover material 16 ... Water pipe 21 ... Cylindrical body 21b ... Slit 32 …Lead

Claims (6)

Using a belt-like heating element constructed by covering a chip array of a plurality of LED chips as a heat source with a coating material made of soft plastic or synthetic rubber , the belt-like heating element is closely attached to the object to be frozen and the object to be frozen A freeze prevention method characterized by preventing freezing of an object.   The antifreezing method according to claim 1, wherein the covering material has translucency.   The freeze prevention method according to claim 1, wherein the plurality of LED chips are mounted on a flexible printed wiring board to form the chip array.   The freeze prevention method according to claim 1, wherein the plurality of LED chips are connected by lead wires to form the chip row. 2. The freezing according to claim 1, wherein waterproofing is imparted to each of the heating element, a power supply circuit for controlling lighting of each LED chip, a cord connecting the heating element, and a connecting portion between the heating element and the cord. Prevention method. A belt-shaped heating element formed by coating a cylindrical body formed of translucent foamed plastic and a chip array in which a plurality of LED chips are arranged as a heat source with a translucent material made of soft plastic or synthetic rubber,
A heating element is mounted on the inner peripheral wall surface of the cylindrical body so as to extend along the axial direction of the cylindrical body, and the LED chip is mounted so as to face the inner wall surface of the cylindrical body,
A slit reaching the inner peripheral wall surface from the outer peripheral wall surface of the cylindrical body is formed along the axial direction of the cylindrical body,
An anti-freezing device characterized in that a cylindrical body can be expanded from a slit so as to be covered with a pipe material which is an anti-freezing object.

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