JP2005326045A - Planar heater and bathroom wash place floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a planar heater capable of reducing the number of terminals of a heater wire in applying a heating function to a back face of a floor even in a case when intervals of lattice-shaped ribs of a rear face of a bathroom wash place floor are narrow. <P>SOLUTION: This planar heater 1 is composed of a heat transfer sheet 2 and a heating wire 3. The heat transfer sheet 2 has two longitudinal sheet parts 2a, 2b arranged in parallel with each other on one face. The longitudinal sheet parts 2a, 2b are connected by a connecting sheet part 2c at their one ends. The heating wire 3 is passed inside of the heat transfer sheet 2. The wire is distributed in a state of being reciprocated once between both ends of the longitudinal sheet parts 2a, 2b, and connected between adjacent longitudinal sheet parts 2a, 2b. Thus the number of terminals of the heater wire can be reduced, the work of connecting power supply terminals of each planar heater 1 and workload in waterproofing work of the connection part of the power supply terminals can be reduced, and the execution of work can be simplified. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a surface heater used for a bathroom washing floor such as a bathroom unit and a bathroom washing floor using the same.

  What was described in patent document 1 is well-known as a conventional bathroom washroom floor.

  FIG. 6 is a cross-sectional view illustrating a schematic configuration of a washroom floor installed in a bathroom unit. The interior of the bathroom unit 101 is surrounded by unit walls 102 and 102, a unit ceiling 103, and a washing floor 104.

  In one section on the washing floor 104, a bathtub 105 is installed so as to approach one unit wall 102. A belt-like heater 106 is attached to the back surface of the washing floor 104 where the bathtub 105 is not installed. Then, a heat insulating foam 107 is attached so as to cover the belt-like heater 106.

  In the belt-like heater 106, a heating wire 112 is passed through a belt-like heat transfer sheet 111 made of a metal foil or a thin plate (see FIG. 7). A power cord 108 for supplying power to the heating wire 112 is connected to the strip heater 106. The heat transfer sheet 111 is grounded by a ground wire 109 to prevent an electric shock accident. The disconnection of the current to the heating wire 112 is performed by the operation unit 110 connected to the power cord 108.

  FIG. 7 is a plan view of the washing floor 104 as seen from the back side. On the back surface of the washing floor 104, ribs 113a and 113b for reinforcing the strength of the floor surface are formed in a lattice shape. Hereinafter, the rib 113a parallel to the longitudinal direction of the washing floor 104 is referred to as “vertical rib”, and the rib 113b in a direction perpendicular thereto is referred to as “lateral rib”.

  One long belt-like heater 106 is attached along each groove between the adjacent vertical ribs 113a and 113a. Each strip heater 106 is arranged with its longitudinal direction parallel. The belt-like heater 106 is disposed so as to straddle the lateral ribs 113b that define the grooves between the ribs 113a and 113a. In the groove, the belt-like heater 106 is stuck to the bottom of the groove, and the rib 113b in the lateral direction is stuck along the surface of the rib 113b.

  A heating wire 112 is passed through each strip heater 106 in parallel to the longitudinal direction. The heating wire 112 enters from one end side of the belt-like heater 106, is folded back in a U shape at the other end side, and is passed along a path that goes out to the one end side. The terminals 112a of the heating wires 112 of the adjacent strip heaters 106 are connected to form one heater circuit. A terminal 112 a of the heating wire 112 of the strip heater 106 positioned at one end of the row of strip heaters 106 arranged in parallel is connected to the power cord 108. Further, the terminal 112 a of the heating wire 112 of the belt-like heater 106 located at the opposite end is connected to one terminal of the thermostat 115 arranged near the center of the row of the belt-like heater 106 by the connection cord 114. . The other terminal of the thermostat 115 is connected to the power cord 108.

With such a configuration, it is possible to add a floor heating function to the washing floor of a sheet molding (hereinafter referred to as “SMC”) molded product having excellent mass productivity by a relatively simple operation. Further, when the belt heater 106 fails, the heat insulating foam 107 can be removed and the belt heater 106 can be replaced. Therefore, repair at the time of failure of the heater is also simplified.
Japanese Patent Laid-Open No. 11-293938

  However, since the conventional bathroom washroom floor has a configuration in which the belt-like heaters 106 are laid one by one in the grooves between the respective vertical ribs 113a, there are many cases where the interval between the vertical ribs 113a is narrow. It is necessary to lay the belt-like heater 106 under the floor. If it does so, the number of the terminals 112a of the heating wire 112 will also increase, and the operation | work which connects these terminals 112a will become very complicated. In many cases, the failure of the belt-like heater 106 is mainly caused by poor contact or deterioration at the terminal 112a. Therefore, as the number of terminals 112a increases, the probability that a failure will occur increases accordingly.

  In addition, the thermostat 115 is usually installed near the center of the floor surface of the bathroom wash floor 104. In this case, wiring from the strip heater 106 at one end of the strip heaters 106 arranged in parallel to the thermostat 115 is required. In this case, there is a problem that the wiring distance is long and wiring is wasted.

  Further, the heater circuit of the conventional bathroom washing floor 104 is a single circuit. Therefore, regardless of the temperature in the bathroom unit 101, the temperature of the entire washing area is always increased when floor heating of the washing area is performed. However, when the temperature in the bathroom unit 101 is not so low, it is only necessary to floor-heat the vicinity of the entrance in order to eliminate the cool feeling near the entrance door of the bathroom unit 101. Therefore, in such a case, there is also a problem that heating is wasted.

  Therefore, an object of the present invention is to reduce the number of terminals of the heater wire when adding a heating function to the back surface of the washroom floor even when the interval between the grid-like ribs on the back surface of the bathroom washroom floor is narrow. It is to provide a surface heater.

  It is another object of the present invention to provide a bathroom washroom floor having a floor heating function that is simple in installation or replacement of the surface heater, has a small number of terminals of the heater wire on the back surface of the washroom floor.

  Furthermore, another object of the present invention is to provide a bathroom washing floor that can reduce the waste of wiring when the thermostat is mounted near the center of the floor, and can be heated by dividing the floor into a plurality of sections. It is to provide.

The configuration of the surface heater according to the present invention is a surface heater laid on the floor surface of the bathroom washing place,
(A) It has two or more vertically long sheet portions, the vertically long sheet portions are arranged in parallel on one surface, and each vertically long sheet portion is connected to an adjacent vertically long sheet portion at one end or at a plurality of positions. A heat transfer sheet having a shape connected by a sheet portion;
(B) and each of the adjacent vertically long wires that are passed through the surface or inside of the heat transfer sheet and are reciprocated one or more times between both ends of each of the vertically long sheet portions constituting the heat transfer sheet. It is characterized by comprising a continuous heating wire connected between the sheet portions.

  With this configuration, the back surface of the bathroom washroom floor having grid-like ribs is transferred into a groove formed between a pair of adjacent ribs parallel to one direction (hereinafter referred to as “longitudinal direction”). By disposing the vertically long sheet portion of the thermal sheet so as to be parallel to the ribs in the vertical direction, it is possible to attach a surface heater along the unevenness of the ribs. In addition, since a plurality of vertically long sheet portions are connected by a connecting sheet portion, the surface heater assembly (each portion of the surface heater is laid under the floor) compared to the surface heater used in the above-described conventional bathroom washroom floor. This is what is gathered into a single part (hereinafter referred to as “heater assembly”). Each heater assembly requires two terminals (power supply terminals) for supplying power to the heating wire, but if the number of heater assemblies installed under the floor is reduced, the number of power supply terminals under the floor will also be reduced. Is possible. Accordingly, the amount of work for connecting the power supply terminals of each heater assembly and the waterproof work for the portion where the power supply terminals are connected is reduced, and the construction work of the surface heater is facilitated.

  Here, the shape of the “vertically long sheet portion” is not particularly limited, and includes, for example, a rectangle, a meandering vertically long shape, and the like. Further, the position where the two vertically long sheet portions are connected by the connecting sheet portion may be one end portion of the vertically long sheet portion, or may be another portion (for example, the center portion, both end portions, etc.). .

The first configuration of the bathroom washroom floor according to the present invention is a bathroom washroom floor provided with a floor having lattice-like ribs formed on the back surface.
(A) It has two or more vertically long sheet portions, the vertically long sheet portions are arranged in parallel on one surface, and each vertically long sheet portion is connected to an adjacent vertically long sheet portion at one end or at a plurality of positions. A heat transfer sheet having a shape connected by a sheet portion;
(B) and each of the adjacent vertically long wires that are passed through the surface or inside of the heat transfer sheet and are reciprocated one or more times between both ends of each of the vertically long sheet portions constituting the heat transfer sheet. A surface heater having a continuous heating wire connected between the sheet portions is laid on the rear surface of the floor, and the surface heater is in one direction (hereinafter referred to as “longitudinal direction”) of the grid-like ribs. The longitudinally long sheet portions of the heat transfer sheet are arranged one by one along a groove formed between a pair of adjacent ribs parallel to each other, and the connecting sheet portion of the heat transfer sheet. Is laid so as to straddle the longitudinal ribs.

  According to this configuration, in the surface heater, one vertically long sheet portion is laid along one groove formed between the longitudinal ribs. The vertically long sheet portion adjacent to the vertically long sheet portion is laid along the adjacent groove. Each vertically long sheet portion is disposed on the back surface of the floor by sticking or pressure bonding so as to straddle the rib in the direction intersecting the longitudinal rib (hereinafter referred to as “lateral direction”). In addition, the connecting sheet portion connecting the adjacent vertically long sheet portions is disposed on the back surface of the floor by sticking or crimping so as to straddle the rib formed between the vertically long sheet portions. become. Thus, since it is set as the shape which connected the some vertically long sheet | seat part by the connection sheet | seat part, a surface heater can be arrange | positioned according to the rib formed in the grid | lattice form on the back surface of the floor. In this case, the surface heater has a structure in which a plurality of vertically long sheet portions are connected by a connecting sheet portion. Therefore, what was conventionally a separate vertically long sheet-shaped surface heater is an assembly of one surface heater (heater As an assembly), it is possible to increase the area of the heater assembly over which one heating wire is stretched. Therefore, the number of heater assemblies laid under the floor can be reduced. In addition, the amount of work for connecting the power supply terminals of each heater assembly and the waterproof work for the portion where the power supply terminals are connected is small, and the construction work for the bathroom washroom floor is facilitated.

  According to a second configuration of the bathroom washroom floor according to the present invention, in the first configuration, the surface heaters are respectively laid on left and right floor sections separated by a center line of the floor, and the surface heater The power supply terminal of the heating wire is arranged on the center line side of the floor.

  In this way, the surface heater is divided into left and right sections of the floor surface, and the heating wire feeding terminal is arranged on the center line side of the floor, so that the position of the heating wire feeding terminal is located on the floor of the bathroom washing place. It can be near the center. Therefore, regardless of the orientation of the bathroom washing floor, the power supply terminal is located near the center of the bathroom washing area. Therefore, since the restrictions on the installation direction of the bathroom washroom floor are not strict, there is no need to worry about extra work such as changing the floor due to an incorrect installation direction during the floor installation work.

  In addition, when an automatic temperature controller (thermostat) is connected in the heating wire circuit of each surface heater, usually, one thermostat is placed in the center of each of the left and right floor sections across the center line of the bathroom washroom floor. Be placed. Therefore, by positioning the power supply terminal near the center of the bathroom washing place, the length of the connection wiring from the power supply terminal to the thermostat can be shortened compared to the case where the power supply terminal is located at the end of the bathroom wash place. Therefore, waste of wiring material can be eliminated and cost can be reduced.

  In the third configuration of the bathroom washer floor according to the present invention, in the first or second configuration, the surface heater is divided into a plurality of sections and laid one by one for each section. Further, the present invention is characterized in that an energization switch capable of independently connecting and de-energizing each surface heater is provided.

  According to this configuration, for example, when the temperature is considerably low, the energizing switch is operated to heat the entire bathroom washing floor. On the other hand, when the temperature is not so low, only the floor near the entrance of the bathroom washing area is heated by operating the energizing switch in order to relieve the cool feeling at the moment of entering the bathroom washing area from the entrance of the bathroom washing area. In this way, by operating the energization switch, it is possible to heat only the section of the floor that requires floor heating, and to save the electrical energy required for heating.

  As described above, the surface heater according to the present invention has a structure in which a plurality of vertically long sheet portions are connected by the connecting sheet portions, so that the number of heater assemblies laid under the floor can be reduced. Further, the amount of work for connecting the power feeding terminals of each heater assembly and the waterproof work for the portion where the power feeding terminals are connected is reduced, and the construction work of the surface heater is facilitated.

  Moreover, according to the bathroom washroom floor according to the present invention, the surface heater to be used has been integrated as a single heater assembly, which was conventionally a vertically long sheet-shaped surface heater, The area of the heater assembly over which one heating wire is stretched is large. Therefore, the number of heater assemblies laid under the floor can be reduced. In addition, the amount of work for connecting the power supply terminals of each heater assembly and the waterproof work for the portion where the power supply terminals are connected is small, and the construction work for the bathroom washroom floor is facilitated.

  Further, by energizing one to several of the several heater assemblies, it is possible to heat only the necessary portions of the washing floor. This saves electrical energy compared to heating the entire floor.

  In addition, for example, the heater can be linked with an outside temperature thermistor to automatically turn on the heater when a certain temperature is reached. In general, since the temperature of the floor reaches the optimal bathing temperature approximately 30 minutes after energization, the energization is started so that the floor temperature becomes optimal at a preset time, for example, the reserved bathing time. can do.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a plan view illustrating a surface heater according to a first embodiment of the present invention. The surface heater 1 which concerns on a present Example is laid on the bathroom washing-room floor surface. The surface heater 1 has a heat transfer sheet 2 made of a good heat transfer body. The heat transfer sheet 2 has two vertically long sheet portions 2a and 2b. The two vertically long sheet portions 2a and 2b are arranged on one plane with their longitudinal directions parallel to each other. Then, at one end of the two vertically long sheet portions 2a and 2b, the two vertically long sheet portions 2a and 2b are connected by a connecting sheet portion 2c, and the heat transfer sheet 2 has a П-shape as a whole.

  The heat transfer sheet 2 has a configuration in which two metal thin plates are bonded together. Specifically, as the metal thin plate, for example, an aluminum foil (or aluminum tape) having a thickness of 20 to 100 μm can be used. As a method of bonding the two metal thin plates, for example, a method of bonding with an adhesive or a double-sided tape, a method of welding by hot pressing, or the like can be used.

  Moreover, the heating wire 3 is wired inside the heat transfer sheet 2 so as to reciprocate once between both ends of the vertically long sheet portions 2a and 2b. The heating wires 3 in the vertically long sheet portions 2a and 2b are connected to each other at the connecting sheet portion 2c, and are configured as a whole.

  As the heating wire 3, for example, a cord-like heating element in which a nichrome wire, a tungsten wire or the like is covered with an insulator can be used. As the cord-like heating element, specifically, for example, a digel heater, a glass heater, a bezel heater, a full-bon heater, etc. can be used.

  At both ends of the heating wire 3, feed terminals 3a and 3b for connecting to the lead wires 4 and 4 are provided. The power supply terminals 3 a and 3 b are covered with an insulating tube in order to ensure insulation between the heat transfer sheet 2. The lead wires 4 and 4 are for connection to a power cord (not shown) for supplying power to the heating wire 3 from the outside.

  Furthermore, the ground wire 5 is connected to the heat transfer sheet 2 in order to ensure safety in the event of a leakage.

  The effects of the surface heater 1 according to this embodiment configured as described above will be described. When this surface heater 1 is affixed to the back surface of a bathroom washroom floor having grid-like ribs, the longitudinal direction of the vertically long sheet portions 2a and 2b is one direction of the grid-like ribs (hereinafter referred to as "longitudinal direction"). )) Paste it so that it is parallel to the rib. At that time, the vertically long sheet portions 2a and 2b are arranged so as to enter a groove formed between a pair of adjacent longitudinal ribs. In this case, the connecting sheet portion 2c is laid so as to straddle the longitudinal rib between the two vertically long sheet portions 2a and 2b. Since the heat transfer sheet 2 has the above-described character shape, the heat transfer sheet 2 is in close contact with the bottom surface of the groove formed between each rib and the longitudinal rib along the unevenness of the rib. It becomes possible to paste.

  Further, compared to the above-described conventional belt-shaped surface heater, the heat transfer sheet 2 has two vertically long sheet portions 2a and 2b joined by a connecting sheet portion 2c, so that two conventional belt-shaped surface heaters are one. This is equivalent to one heater assembly. Therefore, the number of heater assemblies laid under the floor can be reduced as compared with the surface heater used in the above-described conventional bathroom washroom floor. Each heater assembly requires two sets of power supply terminals 3a and 3b and lead wires 4 and 4 for supplying power to the heating wire 3, but if the number of heater assemblies to be laid under the floor is reduced, the corresponding amount Only the number of power supply terminals under the floor can be reduced. Therefore, the amount of work for connecting the power supply terminals of each heater assembly and the waterproof work for the portion where the power supply terminals are connected is reduced, and the construction work of the surface heater is facilitated.

  FIG. 2 is a plan view illustrating a surface heater according to a second embodiment of the present invention. 2, the same components as those in FIG. 1 are denoted by the same reference numerals and description thereof is omitted. In the surface heater 1 ′ according to the present embodiment, the heat transfer sheet 2 ′ has three vertically long sheet portions 2a ′, 2b ′, and 2c ′, and the vertically long sheet portions 2a ′, 2b ′, and 2b ′, 2c. 'Is connected by connecting sheet portions 2d' and 2e '. The heat transfer sheet 2 ′ has a cross-sectional shape as a whole.

  Even if comprised in this way, the effect similar to Example 1 can be acquired.

  In this embodiment, the case of three longitudinal sheet portions of the heat transfer sheet is illustrated, but in the present invention, the number of the longitudinal sheet portions is not limited to two or three, and may be more. In Examples 1 and 2, the connecting sheet portion of the heat transfer sheet is one end of the vertically long sheet portion. However, in the present invention, the position and number of the connecting sheet portions are not limited to this, for example, the vertically long sheet portion. It is good also as the center or both ends.

  FIG. 3 is a perspective view showing the back surface of the bathroom wash floor according to the third embodiment of the present invention, and FIG. 4 is a schematic plan view showing the wiring structure of the bathroom wash floor according to the third embodiment of the present invention. 3 and 4, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals.

  The bathroom washing floor 10 according to the present embodiment is used for the washing floor in the bathroom unit as shown in the above-described conventional example. This bathroom washroom floor 10 is configured by a sheet molding (SMC) molded product having excellent mass productivity.

  The bathroom washing floor 10 has a substantially rectangular shape in plan view. On the back surface of the bathroom washing place floor 10, lattice-like ribs 12 are formed to protrude. Hereinafter, the longitudinal direction of the bathroom washing floor 10 is referred to as “vertical direction”, and the direction perpendicular thereto is referred to as “lateral direction”. The rib 12 has a structure in which a plurality of longitudinal ribs 12a arranged in parallel and a plurality of transverse ribs 12b arranged in parallel intersect each other in a lattice pattern. The mass portion 13 of the lattice is a plane.

  A drainage basin 14 is formed near the center of one long side of the bathroom washroom floor 10. In the center of the drainage basin 14, a circular drainage port 14a penetrating from the front surface to the back surface is formed. Further, drainage basins 15 and 15 are formed on the left and right of the drainage basin 14 along the long side where the drainage basin 14 is formed.

  Near the center of the back surface of the bathroom washroom floor 10, two surface heaters 1, 1 and two surface heaters 1 'and 1' are attached symmetrically around the center line passing through the drainage basin 14. ing. The vertically long sheet portions 2a and 2b of the surface heater 1 and the vertically long sheet portions 2a ', 2b' and 2c 'of the surface heater 1' are adjacent to each other in the two longitudinal directions so as to straddle each lateral rib 12b. It sticks along the inside of one groove | channel formed between rib 12a, 12a. Further, the connecting sheet portions 2c, 2d ′, 2e ′ connecting the adjacent vertically long sheet portions 2a, 2b, 2a ′, 2b ′, 2b ′, 2c ′ are formed between the vertically long sheet portions. It is affixed to the back surface of the floor so as to straddle the longitudinal ribs 12a.

  Two surface heaters 1, 1 ′ adjacent in the horizontal direction are connected to each other between the adjacent power supply terminals 3 a, 3 b by a lead wire 4 via a thermostat 16. The thermostat 16 is affixed to the bottom surface of the mass portion 13 near the center of the left and right floor surfaces of the bathroom wash floor 10 centering on the center line passing through the drainage basin 14. The thermostat 16 is turned off when the surface temperature of the surface heaters 1 ′ and 1 ′ reaches a predetermined temperature. Thereby, heating temperature on / off control is performed.

Further, the power supply terminals 3 b and 3 b of the surface heaters 1 ′ and 1 ′ arranged on the left and right sides with the center line passing through the drainage basin 14 are connected by lead wires 4. The power supply terminals 3 a and 3 a of the surface heaters 1 and 1 arranged on the left and right with the center line passing through the drainage basin 14 are connected to a power cord (not shown) via the lead wire 4. Thereby, the heating wire 3 of each surface heater 1, 1 ', 1', 1 comprises the continuous series circuit.

  As described above, each of the surface heaters 1 and 1 ′ has a shape in which a plurality of vertically long sheet portions are connected by a connecting sheet portion. Therefore, the surface heaters are arranged in conformity with ribs formed in a lattice shape on the back surface of the floor. can do. In addition, a conventional vertically long sheet-shaped surface heater is integrated as one heater assembly, and the area of the heater assembly over which one heating wire is stretched can be increased. . Therefore, the number of heater assemblies laid under the floor can be reduced. In addition, the amount of work for connecting the power supply terminals of each heater assembly and the waterproof work for the portion where the power supply terminals are connected is small, and the construction work for the bathroom washroom floor is facilitated.

  In the present embodiment, the bathroom wash floor 10 is divided into two left and right sections around the center line passing through the drainage basin 14, and the respective surface heaters 1 and 1 'are arranged symmetrically in the left and right sections. It was. Thereby, the position of the power feeding terminals 3 a and 3 b of the heating wire 3 can be set near the center of the bathroom washing floor 10. Accordingly, the power supply terminals 3a and 3b are located near the center of the bathroom washing place 10 regardless of the orientation of the bathroom washing place floor 10. Therefore, since the restriction on the installation direction of the bathroom washing floor 10 is not strict, there is no fear that extra work such as replacement of the floor due to a mistake in the installation direction occurs during the floor installation work.

  In this embodiment, the heating wires 3 of all the surface heaters 1 and 1 'are connected in series. However, the surface heaters 1 and 1' in the left and right sections or the respective surface heaters 1 and 1 are used. It may be configured such that power is supplied independently for each 'and the energization is turned on / off for each of the left and right sections or for each surface heater 1, 1'. Thereby, only the location where the floor surface of the bathroom washroom floor 10 is required can be heated intensively, and an electrical energy can be saved compared with heating the bathroom washroom floor 10 whole surface.

  FIG. 5 is a schematic plan view illustrating a wiring structure of a bathroom washing floor according to a fourth embodiment of the present invention. In the present embodiment, the two surface heaters 1, 1 'are laid over the entire length of the bathroom washing floor 10'.

  Even with such a configuration, since the number of heater assemblies can be reduced, the construction work of the bathroom washroom floor is facilitated.

It is a top view showing the surface heater which concerns on Example 1 of this invention. It is a top view showing the surface heater which concerns on Example 2 of this invention. It is a perspective view showing the back surface of the bathroom washroom floor which concerns on Example 3 of this invention. It is a plane schematic diagram showing the wiring structure of the bathroom washroom floor which concerns on Example 3 of this invention. It is a plane schematic diagram showing the wiring structure of the bathroom washroom floor which concerns on Example 4 of this invention. It is sectional drawing showing the schematic structure of the washing-room floor installed in the bathroom unit. It is the top view which looked at the washroom floor from the back.

Explanation of symbols

1, 1 'surface heater 2, 2' Heat transfer sheet 2a, 2b, 2a ', 2b', 2c 'Long sheet portion 2c, 2d', 2e 'Connection sheet portion 3 Heating wire 3a, 3b Feeding terminal 4 Lead wire 4a , 4n Connection terminal 5 Ground wire 10, 10 'Bathroom wash floor 12 Rib 12a Longitudinal rib 12b Lateral rib 13 Mass portion 14 Drainage basin 14a Drainage port 15 Drainage basin 16 Thermostat 101 Bathroom unit 102 Unit wall 103 Unit ceiling 104 Washing floor 105 Bath 106 Strip heater 107 Thermal insulation foam 108 Power cord 109 Ground wire 111 Heat transfer sheet 112 Heating wire 112a Terminal 113a, 113b Rib 114 Connection cord 115 Thermostat

Claims (4)

A surface heater laid on the floor of the bathroom washing area,
It has two or more vertically long sheet portions, the vertically long sheet portions are arranged in parallel on one surface, and each vertically long sheet portion is adjacent to one end or a plurality of positions by adjacent vertically long sheet portions and connecting sheet portions. A heat transfer sheet having a connected shape,
And it is passed through the surface or the inside of the heat transfer sheet and wired so as to reciprocate one or more times between both ends of each of the vertically long sheet portions constituting the heat transfer sheet, and each of the adjacent vertically long sheet portions A surface heater comprising a series of heating wires connected between each other. It is a bathroom washroom floor with a floor with grid-like ribs formed on the back,
It has two or more vertically long sheet portions, the vertically long sheet portions are arranged in parallel on one surface, and each vertically long sheet portion is adjacent to one end or a plurality of positions by adjacent vertically long sheet portions and connecting sheet portions. A heat transfer sheet having a connected shape,
And it is passed through the surface or the inside of the heat transfer sheet and wired so as to reciprocate one or more times between both ends of each of the vertically long sheet portions constituting the heat transfer sheet, and each of the adjacent vertically long sheet portions A surface heater with a series of heating wires connected between them is laid on the back of the floor,
The surface heater includes the heat transfer along a groove formed between a pair of adjacent ribs parallel to one direction (hereinafter referred to as “longitudinal direction”) of the lattice-like ribs. A bathroom washroom floor characterized in that longitudinal sheet portions of the sheet are arranged one by one, and the connecting sheet portion of the heat transfer sheet is laid so as to straddle the longitudinal ribs. The surface heaters are respectively laid on left and right floor sections separated by a center line of the floor,
The bathroom washroom floor according to claim 2, wherein a power supply terminal of the heating wire of the surface heater is disposed on a center line side of the floor. The surface heater divides the floor into a plurality of sections and is laid one by one for each section.
The bathroom washroom floor according to claim 1 or 2, further comprising an energization switch capable of independently connecting and de-energizing each surface heater.

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