JP2017014874A - Roof structure - Google Patents

Abstract

A roof structure that can efficiently melt snow while suppressing the amount of electricity used is provided. SOLUTION: A roof structure is installed on a planar heater 1 installed on a roof base 91, a metal uneven roof material 2 installed on the planar heater 1, and an uneven roof material 2. A temperature sensor 3 and a controller that controls energization of the planar heater 1 based on the temperature sensed by the temperature sensor 3 are provided. The uneven roofing material 2 alternately has convex portions 21 that open downward and project upward, and bottom plate portions 22 that continue to the convex portions 21 along one direction D1. The temperature sensor 3 is installed on the back surface of the convex portion 21 of the uneven roof material 2 and is positioned away from the planar heater 1 in the vertical direction. [Selection] Figure 2

Description

  The present invention relates to a roof structure, and more particularly to a roof structure having a snow melting function.

  In order to melt snow on the roof, it has been conventionally proposed to provide a surface heater for melting snow on the roof.

  For example, in the snowmelt roof material described in Patent Document 1, a planar heating element (planar heater) is installed on the back surface of the metal panel roof material. In this snowmelt roofing material, the sheet heating element is provided with an overheating control device using a thermostat or the like, and is controlled so that the temperature of the sheet heating element does not rise too much.

Japanese Utility Model Publication No. 4-101421

  The snowmelt roofing material described in Patent Document 1 can be controlled so that the temperature of the planar light emitter does not rise too much, but there is room for improvement in terms of suppressing the amount of electricity used.

  An object of the present invention is to provide a roof structure that can efficiently melt snow while suppressing the amount of electricity used.

  The roof structure according to the embodiment of the present invention includes a planar heater, a metal uneven roof material, a temperature sensor, and a control unit.

  The planar heater is installed on the roof foundation of a building.

  The uneven roof material alternately has convex portions that open downward and project upward, and bottom plate portions that continue to the convex portions along one direction. The uneven roof material is installed on the planar heater.

  The temperature sensor is installed on the uneven roof material.

  The controller controls energization to the planar heater based on the temperature sensed by the temperature sensor.

  The said temperature sensor is installed in the back surface of the said convex part which the said uneven | corrugated roof material has, and is spaced apart and located in the up-down direction from the said planar heater.

  The present invention has an effect that snow can be efficiently melted while suppressing the amount of electricity used.

It is a disassembled perspective view which decomposes | disassembles and shows some ridge members in the roof structure of Embodiment 1. FIG. It is the sectional view on the AA line of FIG. It is a disassembled perspective view which decomposes | disassembles and shows the principal part of the roof structure of Embodiment 1. FIG. It is a block diagram which shows roughly the structure of the roof structure of Embodiment 1. FIG. It is a block diagram which shows the structure of the roof structure of Embodiment 2 roughly.

(Embodiment 1)
The roof structure of Embodiment 1 is demonstrated based on FIGS.

  As shown in FIG. 1 and the like, the roof structure of the first embodiment is a structure in which a snow melting function is added to the roof 90 provided in the building 9. The roof 90 of the first embodiment is a gable roof, but may be another type of roof such as a single-flow roof.

  The foundation of the roof 90 is a roof foundation 91 composed of a field board and a roofing on the field board (see FIG. 3). The roof base 91 has a pair of inclined surfaces located across the ridge of the roof 90.

  On each inclined surface of the roof base 91, a plurality of planar heaters 1 capable of exhibiting a snow melting function are disposed. Each planar heater 1 is a film-like or plate-like heater configured to generate heat from the entire upper surface.

  In FIG. 3 and the following description, a structure in which a plurality of planar heaters 1 are arranged on one inclined surface is shown, but the same structure is applied to the other inclined surface.

  On the inclined surface of the roof base 91, a plurality of uneven roof materials 2 are disposed so as to cover the top of the plurality of planar heaters 1 disposed on the inclined surface. The number of the planar heaters 1 and the uneven roofing material 2 disposed on the roof base 91 is not limited to a plurality, and a structure in which only one planar heater 1 or the uneven roofing material 2 is disposed can be employed. is there.

  Each uneven roof material 2 is a roof material formed using, for example, a metal plate material (painted steel plate) having a thickness of about 0.35 mm. As shown in FIG. 2, the convex portion 21 and the bottom plate portion 22 are arranged in one direction D1. Have alternating along. The one direction D1 is a direction along the eaves of the roof 90 (left-right direction).

  Each uneven roof material 2 has a plurality of convex portions 21 and bottom plate portions 22. The convex portion 21 and the bottom plate portion 22 adjacent in the one direction D1 are smoothly continuous with each other.

  The convex portion 21 is a portion that is bent so as to open downward and protrude upward in the coated steel plate constituting the uneven roof material 2.

  The convex portion 21 includes a top plate portion 211 formed flat and a pair of side plate portions 212 extending downward from both ends in one direction D1 of the top plate portion 211. In a state where the uneven roof material 2 is installed on the roof base 91, the top plate portion 211 is positioned in parallel with the roof base 91.

  Note that the term “flat” used in the text is not limited to a strictly flat meaning, but includes a case where it is substantially flat. Similarly, the term “parallel” used in the text is not limited to a strictly parallel meaning, but includes a case of being substantially parallel.

  The bottom plate portion 22 is a flat portion located below the top plate portion 211 and parallel to the top plate portion 211 among the steel plates constituting the uneven roof material 2. In the state where the uneven roof material 2 is installed on the roof base 91, the bottom plate portion 22 is positioned in parallel with the roof base 91.

  In a state where a plurality of planar heaters 1 and a plurality of uneven roofing materials 2 are installed on the roof base 91 (hereinafter, this state is simply referred to as “installed state”), each planar heater 1 has its The uneven roof material 2 in a position covering the upper side is in close contact with or close to the heat conductive material (see FIG. 2).

  More specifically, at least one (four in the first embodiment) bottom plate portion 22 of the uneven roof material 2 is in close contact with or close to the planar heater 1. Another member such as a waterproof sheet may be interposed between the uneven roof material 2 and the planar heater 1.

  In the installed state, a space S1 is formed between each planar heater 1 and the rugged roofing material 2 covering the upper side. The space S <b> 1 is a space surrounded by each convex portion 21 of the uneven roof material 2 and the planar heater 1 below the convex portion 21.

  The temperature sensor 3 is installed on at least one of the plurality of convex portions 21 of the uneven roof material 2 (in the first embodiment, the central convex portion 21 in one direction D1). The temperature sensor 3 is installed on the back surface of the top plate portion 211 in the convex portion 21 and senses the temperature of the top plate portion 211. The number of temperature sensors 3 is not particularly limited, and it is sufficient that at least one temperature sensor 3 is installed on the back surface of the top plate portion 211.

  The back surface of the top plate portion 211 is a surface facing the space S1 in the installed state. The back surface of the top plate portion 211 is a surface located farthest from the planar heater 1 in the installed state among the back surfaces of the uneven roof material 2. The temperature sensor 3 installed on the back surface of the top plate portion 211 is accommodated in the space S <b> 1 and is positioned at a distance from the top and bottom of the planar heater 1.

  Further, among the plurality of spaces S1 formed between the uneven roofing material 2 and the planar heater 1, at least one space S1 (in the first embodiment, the central space S1 in one direction D1) is shown in FIG. Thus, the electrical connection portion 4 and various cords 5 are accommodated.

  The cords 5 include a power supply cord 51 connected to the electrical connection portion 4 and a connection cord 52 connected to the temperature sensor 3. The power supply cord 51 supplies electric power to each planar heater 1 via the electrical connection portion 4 connected to at least one planar heater 1.

  The cords 5 are drawn into the building 9 through the opening 92 provided in the ridge of the roof 90 (see FIG. 1). Since the opening 92 is covered by the ridge member 93, the intrusion of rain and wind is prevented.

  The cords 5 drawn into the building 9 are electrically connected to the control unit 6 installed in the building 9. The temperature detected by the temperature sensor 3 is input to the control unit 6. The controller 6 is configured to control power supply to each planar heater 1 based on the input content (see FIG. 4).

  In detail, the control part 6 controls the electric power feeding to each planar heater 1 so that the temperature of the top plate part 211 of the uneven roof material 2 maintains a predetermined temperature or temperature range. The predetermined temperature is preferably a temperature or temperature range set higher than 0 ° C. and as low as possible from the viewpoint of suppressing the amount of electricity used.

  The energization of each sheet heater 1 can be switched on and off by manually operating the operation unit 7 composed of operation switches and the like. It is preferable that the predetermined temperature can be switched by manually operating the operation unit 7.

  According to the roof structure of the first embodiment, the temperature of the top plate portion 211 of the uneven roof material 2 can be sensed with high accuracy. Since the temperature sensor 3 is installed on the back surface of the metal top plate portion 211 and is separated from the planar heater 1 and accommodated in the space S1, it is possible to suppress the influence from the outside such as wind and rain. The temperature of the top plate portion 211 showing the substantially same temperature as the outside can be sensed directly and with high accuracy.

  Therefore, according to the roof structure of the first embodiment, it is possible to efficiently melt snow on the uneven roof material 2 (especially, snow on each convex portion 21) while suppressing the total amount of electricity used. it can.

  In addition, in the roof structure of the first embodiment, the electrical connection part 4 and the cords 5 for adding a snow melting function to the roof 90 can be accommodated in the space S1. For this reason, the roof base 91 and the planar heater 1 are brought into close contact with or close to each other, and the planar heater 1 and the rugged roofing material 2 are brought into close contact with or close to each other without the electric connecting portion 4 and the cords 5 being in the way The roof structure having a snow melting function can be thinned as a whole. The thinning of the entire roof structure having a snow melting function is advantageous in increasing the efficiency of heat conduction, and is advantageous in ensuring the strength of the entire structure.

  In the first embodiment, the temperature sensor 3, the electrical connection portion 4, and the cords 5 are accommodated in one space S1 formed between the uneven roof material 2 and the planar heater 1, but these are separated into separate spaces. It is also possible to accommodate in S1.

(Embodiment 2)
The roof structure of Embodiment 2 is demonstrated based on FIG.

  The basic configuration of the roof structure of the second embodiment is the same as the configuration described in the roof structure of the first embodiment. In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The roof structure of the second embodiment includes a snowfall sensor 8 instead of the operation unit 7 described in the first embodiment. The snowfall sensor 8 senses snowfall and inputs the sensing result to the control unit 6.

  The snowfall sensor 8 can employ various types of sensors such as a sensor that detects snowfall using infrared rays, and a sensor that detects moisture in the attached snow. Further, in addition to the snowfall sensor 8, it is possible to include the same operation unit 7 as in the first embodiment.

  According to the roof structure of the second embodiment, it is possible to efficiently melt snow on the uneven roof material 2 while automatically detecting snowfall without the user's operation and suppressing the amount of electricity used. it can.

  The roof structures of Embodiments 1 and 2 have been described in detail above based on the attached drawings.

  As described above, the roof structures of the first and second embodiments include the planar heater 1, the metal uneven roof material 2, the temperature sensor 3, and the control unit 6.

  The planar heater 1 is installed on the roof base 91 of the building 9.

  The uneven roofing material 2 alternately has convex portions 21 that open downward and project upward, and bottom plate portions 22 that continue to the convex portions 21 along one direction D1. The uneven roof material 2 is installed on the planar heater 1.

  The temperature sensor 3 is installed on the uneven roof material 2.

  The controller 6 controls energization to the planar heater 1 based on the temperature sensed by the temperature sensor 3.

  The temperature sensor 3 is installed on the back surface of the convex portion 21 of the uneven roof material 2 and is positioned away from the planar heater 1 in the vertical direction.

  Therefore, according to the roof structures of the first and second embodiments, the temperature of the metal top plate portion 211 included in the uneven roof material 2 is detected with high accuracy while suppressing the influence from the outside and the planar heater 1, and this detection is performed. Based on the result, snow on the uneven roof material 2 can be melted.

  Therefore, according to the roof structure of Embodiments 1 and 2, it is possible to efficiently melt the snow on the uneven roof material 2 while suppressing the total amount of electricity used.

  Although the embodiments have been described above, the roof structure is not limited to the embodiments described above, and appropriate design changes can be made.

DESCRIPTION OF SYMBOLS 1 Planar heater 2 Uneven roof material 21 Convex part 22 Bottom plate part 3 Temperature sensor 6 Control part 9 Building 91 Roof base D1 One direction

Claims (1)

A planar heater installed on the roof of the building;
A metal uneven roof material that has a convex portion that opens downward and protrudes upward and a bottom plate portion that continues to the convex portion alternately along one direction, and is installed on the planar heater. When,
A temperature sensor installed on the uneven roof material;
A controller that controls energization of the planar heater based on the temperature sensed by the temperature sensor;
The said temperature sensor is installed in the back surface of the said convex part which the said uneven roof material has, and is spaced apart and located in the up-down direction from the said planar heater, The roof structure characterized by the above-mentioned.

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