JP3223525U - Electric kotatsu heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a gentle heating effect by the action of radiant heat without making protrusions at the center and four sides of the underside of the tower frame plate, it can be set to a heating temperature that does not cause burns even if it touches the heating element directly, Provided is an electric kotatsu heat source device capable of providing a comfortable warming effect of the lower body. A heating device of an electric kotatsu is constituted by a flat and rectangular oil heater, and is attached in a frame shape to the bottom four sides of the top plate of the electric kotatsu. [Selection] Figure 1

Description

  The present invention relates to an electric kotatsu heat source device, and more particularly, to a heat source that is a heat source, which is replaced with an oil heater instead of a conventional infrared heater or an infrared heating bulb.

  In the conventional electric kotatsu, a heating element is provided only at the center and four sides of the underside of the tower frame plate, or only the four sides excluding the center, and only the switch and temperature control knob or switch for controlling each is provided at each hand. This is a multi-heat source type YAGURA electric kotatsu (see Patent Document 1).

  Further, regarding an electric kotatsu heat source device, an electric kotatsu heat generating device having a function of deodorizing an unpleasant odor in the kotatsu at the same time as an infrared heater becomes a heat source for heating is provided. The structure is such that, in the space surrounded by the reflector 6 and the guard 5, an electric kotatsu heating device formed by mounting the air blower 3 with the fan 31 and the infrared heater 1 is arranged on the outer periphery of the rod-shaped infrared heater 1. The deodorizing cover 2 provided with the catalyst layer 21 having a deodorizing function on the surface of the structure having the opening 22 through which infrared rays pass and having a deodorizing function as a main component, such as platinum, manganese, etc. The infrared heater 1 can be formed as a lamp heater that contains a lot of visible light, and the thermostat 9 that controls the temperature in the kotatsu is connected to the infrared heater 1 in series. (For example, refer to Patent Document 2).

Japanese Utility Model Publication No. 63-129109 Japanese Patent Application Laid-Open No. 07-180849

  The Japanese Utility Model Publication No. 63-129109 discloses a kotatsu because a heating element is provided only on the center and four sides of the bottom surface of the tower frame plate, or only on the four sides excluding the central part, and a switch and temperature control knob for controlling each is provided. About the number of people and the center and four sides of the lower surface of the frame plate, it is possible to use by switching the heating element arranged at each position. However, since the heat source is an infrared light bulb, a mild heat generation characteristic cannot be obtained, and there is a problem that the kotatsu futon (clothing) is heated to a higher temperature than necessary. Furthermore, there is a problem that the heating element has a low heat generation efficiency as a heat source, and the efficiency as the heat source body is low. Further, since the infrared light bulb is in a cylindrical state, a large space is required on the bottom surface of the tower frame plate, and when a plurality of people enter the kotatsu, there is a problem that the knees and the like touch the heating element.

  Japanese Unexamined Patent Publication No. 07-180849 is an electric kotatsu heating device having a function of deodorizing an unpleasant odor in the kotatsu at the same time as an infrared heater becomes a heat source for heating. However, since a number of various members serving as protrusions are arranged on the bottom surface of the tower frame plate, the knee touches the heat generating device, causing burns. Further, since warm air or hot air is blown to the knee portion by the fan, only the knee tends to be warmed, and the effect of blowing warm air on the leg tip (foot tip) cannot be obtained. There is a problem. Moreover, the number of parts of the heat generating device increases, which causes a cost increase.

The present invention was made in view of the problems in the above two known examples of the electric kotatsu,
(1) At the center and four sides of the underside of the tower frame plate, we succeeded in installing a flat heating element with a simple structure without making protrusions.
(2) The structure was simple, and a gentle heating effect was achieved by the action of radiant heat.
(3) Even if it touches the heating element directly, it is set to a heat generation temperature that does not cause burns, so the temperature in the kotatsu is controlled by radiant heat, and it has succeeded in warming the lower body in a comfortable kotatsu. .

  In order to achieve the above object, the electric kotatsu heating device of the present invention is a heating device attached to the bottom surface of the electric kotatsu top plate, the heating device is a flat and rectangular oil heater, and the bottom surface of the top plate is It is characterized by being attached to the four sides of the bottom of the top plate in a frame shape.

  The heating device of the electric kotatsu of the present invention is a heating device attached to the bottom surface of the top plate of the electric kot, the heating device is a flat and rectangular oil heater, and the bottom surface of the top plate is the four sides of the bottom surface of the top plate. And a square oil heater is also attached to the center of the bottom surface of the top plate, or the two oil heaters are integrated.

  An electric kotatsu heat generating device according to the present invention is characterized by including a temperature control unit that heats or selectively heats oil heaters arranged on four sides of the bottom surface of the top plate.

  The electric kotatsu heating device of the present invention is a temperature control unit that heats or selectively heats an oil heater attached to the four sides of the bottom surface of the top plate or a square oil heater attached to the center portion of the bottom surface of the top plate. It is characterized by comprising.

  The heating device of the electric kotatsu of the present invention is the above-described oil heater, wherein the oil heater joins two flat plates and injects nonflammable oil into the inside, and the heater wire for heating is connected to the nonflammable oil. It is characterized by being arranged in

  An electric kotatsu heat generating device according to the present invention is characterized in that, in the above-described oil heater, the oil heater includes a heat insulating plate having a high heat insulating property on an upper surface side attached to the bottom surface of the top plate.

  The heating device for the electric kotatsu of the present invention is characterized in that in the oil heater described above, the oil heater is formed by interposing a heat insulating plate material between an upper surface attached to the bottom surface of the top plate and a bottom surface of the top plate.

  The electric kotatsu heating device of the present invention is the electric kotatsu heating device described in each of the above items, wherein the oil heater includes a temperature sensor on the heating surface of the oil heater, and the temperature detection value of the temperature sensor is a predetermined temperature in the electric kotatsu. The temperature is controlled by a temperature control unit that sets the temperature, and the oil heater that is heated by the switch is switched.

  The heating device attached to the bottom surface of the electric kotatsu top plate is a flat and rectangular oil heater, and the bottom surface of the top plate is framed on the four sides of the bottom surface of the top plate. Since it is installed, there will be heat sources at the four corners of the kotatsu, and it will warm up to the knees of the person entering from the four sides of the kotatsu.

  Furthermore, in the present invention, the bottom surface of the top plate is attached to the four sides of the bottom surface of the top plate in a frame shape, and a square oil heater is also attached to the central portion of the bottom surface of the top plate, or an integrated configuration. It is warmed all the way from the knees to the feet of people entering from the four sides of the kotatsu.

  Furthermore, since the present invention includes a temperature control unit that heats or selectively controls the oil heaters arranged on the four sides of the bottom surface of the top board, the oil heaters are provided according to the number of people entering the kotatsu. Heating is performed simultaneously or selectively. This makes it possible to efficiently manage the temperature in the kotatsu.

  Furthermore, according to the present invention, since the oil heater is formed by joining two flat plates and injecting non-flammable oil into the inside and arranging the heater wire for heating, it has a flat shape and the bottom surface (lower surface) of the top plate. The oil heater does not protrude as a protrusion. As a result, those who enter the kotatsu can extend their legs without hitting the knees against the oil heater.

  Further, the present invention is such that the oil heater has a top surface attached to the bottom surface of the top plate with a heat insulating plate having high heat insulation properties, and the oil heater is insulated between the top surface attached to the bottom surface of the top plate and the bottom surface of the top plate. Since the plate material is interposed, the heat generated from the oil heater spreads over the entire area of the kotatsu. On the other hand, the top plate of the kotatsu is not heated, so that the heat efficiency is good and the life of the top plate is also prolonged.

  Further, according to the present invention, a temperature sensor is provided on the heat generating surface of the oil heater, and the temperature detection value of the temperature sensor is temperature-controlled by a temperature controller of a temperature control unit that sets the temperature in the electric kotatsu to a predetermined temperature. As a result, the oil heater is not overheated and burns can be prevented, and the heating in the kotatsu can be controlled with high efficiency. Furthermore, since the oil heater heated by the switching device is switched, the heating location and area are controlled according to the number of people entering the kotatsu.

  1 shows a first embodiment of the present invention and is a side view of an electric kotatsu. FIG.   1 is a bottom view of a top board according to first and second embodiments of the present invention. FIG.   It is a bottom view of a top plate, showing a third embodiment of the present invention.   It is sectional drawing of each direction of the oil heater used for each embodiment of this invention.   It is a layout view of a temperature controller / switcher in each embodiment of the present invention.

  Hereinafter, an electric kotatsu heating device according to each embodiment of the present invention will be described with reference to FIGS. 1 to 5.

  The heat generating device H1 of the electric kotatsu 1 according to the first embodiment of the present invention is shown in FIGS. The electric kotatsu 1 has square frame plates 1A, 1B, 1C, and 1D, legs 2A, 2B, 2C, and 2D attached to the four corners, and a top plate 3 attached to the square frame plate. . As shown in FIG. 2 (a), an oil ter OH having a flat cross section, which becomes the heat generating device H1, is attached to the four sides of the bottom surface 3A of the top plate 3 in a frame shape. The oil heater OH is integrally formed with four rectangular bodies OH as one rectangular body 11. However, as shown in FIG. 2 (b), the rattling kotetsu heating device H <b> 2 according to the second embodiment of the present invention has four rectangular bodies OH connected to each other by a conducting wire L as a rectangular body 12. Also good.

  An electric kotatsu heating device H3 according to a third embodiment of the present invention is shown in FIG. This is because four rectangular bodies of an oil heater OH having a flat cross section are integrally formed as one rectangular body 11 on four sides of the bottom surface 3A of the top plate 3 shown in FIG. 2A, and attached in a frame shape. In the form, a square oil heater OH4 is attached to the center of the bottom surface 3A of the top plate 3. Of course, both the oil heaters OH and OH4 may be integrated.

  The oil heater OH (OH4) has a flat cross-sectional shape as shown in FIG. That is, as shown in FIG. 4, the upper surface side fixed to the bottom surface 3 </ b> A of the top plate 3 is a heat insulating material 13 having a high heat insulating property. Of course, the heat insulating plate material D0 may be interposed between the heat insulating material 13 and the bottom surface of the top plate as shown in FIG. Furthermore, the lower surface which becomes the space inside the kotatsu is a heat radiating material 14 having a high heat radiating property. The heat insulating material 13 and the heat radiating material 14 have a substantially dish-shaped cross section, and their outer peripheral edges 13A and 14A are joined by welding or the like. A flat space created by the heat insulating material 13 and the heat radiating material 14 is filled with nonflammable oil O. Further, the heater wire 15 for heating the non-combustible oil O is disposed in the flat space. When the heater wire 15 is heated by energization, the non-combustible oil O is heated and radiant heat is radiated from the heat radiating material 14 to the outside. . Therefore, the oil heater OH (OH4) can be manufactured in a flat arbitrary shape. The heater wire 15 is made of, for example, a nichrome wire and is a member that generates heat when an electric current is passed. Therefore, it is needless to say that other heating elements can be used.

  In FIG. 5, the electric kotatsu heat generating devices H1 to H3 include a temperature sensor S in the heat dissipating material 14 serving as the heat generating surface of the oil heater OH (OH4), and the temperature detection value t of the temperature sensor is within the electric kotatsu. The temperature is controlled by a temperature controller 50 serving as a temperature control unit for setting the temperature of the first temperature to a predetermined temperature. The temperature controller 50 serving as the temperature control unit is normally attached to the square frame plate 1A of the yagura kotatsu 10, and includes a power on / off knob S1, a temperature control knob S2, and oil heaters OH ( OH4) has a function of a switching knob S3 for individually turning on / off.

  The function of the switching knob S3 shown in FIG. 5 can be switched in about nine ways. (1) Only A is heated. (2) Only B is heated. (3) Only C is heated. (4) Only D is heated. (5) Heating only AC (or heating only AB). (6) Heat only BD (or only BC). (7) Heating A to D simultaneously. (8) Only E is heated. (9) All A to E are heated. The above switching is performed by a known arbitrary switching mechanism.

  According to the electric kotatsu heat generating devices H1, H2, and H3 according to the above embodiments, the following operations are performed. The heating devices H1, H2, and H3 attached to the bottom surface of the electric kotatsu top plate are flat and rectangular oil heaters OH (OH4), and the bottom surface 3A of the top plate 3 is framed on the four sides of the bottom surface of the top plate. Because it has been installed, there are heat sources at the four corners of the kotatsu, so it can be warmed up to the knees of people entering from the four sides of the kotatsu.

  Furthermore, the heating devices H1, H2, and H3 of the present invention are attached to the bottom of the top plate in a frame shape on the four sides of the top plate, and a square oil heater is also attached to the center of the bottom of the top plate. It is warmed from the knees to the feet of the people who enter from the four sides of the kotatsu.

  Furthermore, the heat generating devices H1, H2, and H3 of the present invention are provided with the temperature regulator 50 that heats or selectively controls the oil heaters OH (OH4) disposed on the four sides of the bottom surface of the top plate at the same time. Depending on the number of people entering the kotatsu, the oil heaters OH (OH4) can be heated simultaneously or selectively. This makes it possible to efficiently manage the temperature in the kotatsu.

  Furthermore, in the heat generating devices H1, H2, and H3 of the present invention, the oil heater OH (OH4) is formed by joining two flat plates, injecting non-flammable oil inside, and arranging a heater wire for heating. It becomes a flat shape, and the oil heater does not protrude as a protrusion on the bottom surface (lower surface) of the top plate. As a result, those who enter the kotatsu can extend their legs without hitting the knees against the oil heater.

  Further, in the heat generating devices H1, H2, and H3 of the present invention, the oil heater OH (OH4) is configured by a heat insulating plate 13 having a high heat insulating property on the top surface attached to the bottom surface 3A of the top plate 3, or the oil heater Since the heat insulating plate material D0 is interposed between the top surface attached to the bottom surface of the plate and the bottom surface of the top plate, the heat generated from the oil heater spreads throughout the entire area of the kotatsu, but the top plate is not heated, so the thermal efficiency is good. The life of the top plate also lasts long.

  Furthermore, the heat generating devices H1, H2, and H3 of the present invention are provided with a temperature sensor S on the heat generating surface of the oil heater OH (OH4), and the temperature detection value t of the temperature sensor sets the temperature in the electric kot to a predetermined temperature. Since the temperature is controlled by the temperature controller 50 to be set, the oil heater can be prevented from being overheated and burns can be prevented, and heating in the kotatsu can be controlled with high efficiency. Furthermore, since the oil heater heated by the switching device is switched, the heating location and area are controlled according to the number of people entering the kotatsu.

  The electric kotatsu heat source devices H1, H2, and H3 of the present invention are not limited to the above-described embodiments, and the design can be changed within the technical scope of the invention. For example, the shape and arrangement of the oil heater, the temperature controller 50, and the like can be freely changed. Further, a plurality of oil heaters OH (OH4) may be configured as a single sheet, which may be heated simultaneously or switched for each region.

1 Electric kotatsu 1A, 1B, 1C, 1D Frame plate 2 Lower surface (bottom surface)
2A, 2B, 2C, 2D Leg 3 Top plate 3A Bottom surface H1, H2, H3 Heating device 13 Heat insulation material D0 Heat insulation plate material 14 Heat radiation material 15 Heater wire OH (OH4) Oil heater O Nonflammable oil S Temperature sensor S1 On / Off Knob S2 Temperature control knob S3 Switch knob t Temperature detection value 50 Temperature controller (temperature control unit)

Claims (8)

  In the heat generating device attached to the bottom of the top plate of the electric kotatsu, the heat generating device is a flat and rectangular oil heater, and the oil heater is attached to the four sides of the bottom surface of the top plate in a frame shape. Kotatsu heating device.   In the heat generating device attached to the bottom surface of the electric kotatsu top plate, the heat generating device is a flat and rectangular oil heater, and the oil heater is attached in a frame shape to four sides of the bottom surface of the top plate, and the bottom surface of the top plate. An electric kotatsu heating device, wherein a square oil heater is attached to the center of the electric heater, or the oil heaters described above are integrated.   2. The electric kotetsu heat generating device according to claim 1, further comprising a temperature control unit that heats or selectively heats the oil heaters arranged on the four sides of the bottom surface of the top plate.   3. A temperature control for heating or selectively heating an oil heater attached to the four sides of the bottom surface of the top plate or a square oil heater attached to the center of the bottom surface of the top plate at the same time. An electric kotatsu heat generating device characterized by comprising a section.   5. The heating device for an electric kotatsu according to claim 1, wherein the oil heater joins two flat plates and injects nonflammable oil into the inside, and the heater wire for heating is connected to the nonflammable oil. An electric kotatsu heating device characterized by being arranged inside.   6. The electric kotetsu heat generating device according to claim 5, wherein the oil heater has a heat insulating plate having a high heat insulating property on an upper surface side attached to the bottom surface of the top plate.   7. The electric kotetsu heat generating device according to claim 5 or 6, wherein the oil heater comprises an insulating plate material interposed between an upper surface side attached to the bottom surface of the top plate and a bottom surface of the top plate. Kotatsu heating device.   The heating device of the electric kotatsu according to claim 1 to 7, wherein a temperature sensor is provided on the heat generating surface of the oil heater, and the temperature detection value of the temperature sensor is a temperature control for setting the temperature in the electric kotatsu to a predetermined temperature. An electric kotatsu heating device characterized in that the temperature of the electric heater is switched by an oil heater heated by a switch.

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