JP7325788B1 - warmer - Google Patents

Abstract

An object of the present invention is to provide a heat retaining device capable of efficiently transferring heat from a heating means to a heat radiating stone plate. Kind Code: A1 A heat-retaining device is provided with a heat-dissipating stone plate for dissipating far-infrared rays, a stone-plate holder for housing the heat-dissipating stone plate, and a heating means for heating the heat-dissipating stone plate. The slate holder 20 covers the entire bottom surface and peripheral side surfaces of the radiating slate 6 and is made of a metal material with high thermal conductivity. It is conducted to the entire bottom surface and peripheral side surface of 6 . The heating means 34 preferably comprises a tubular cartridge heater 36 , which is housed in a heater holder 38 and which is attached to the bottom surface of the slate holder 20 . [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a warmer used for keeping feet warm.

As a foot warmer for keeping feet warm, one using a heat-dissipating stone plate has been proposed (see, for example, Patent Document 1). This warmer (foot warmer) consists of a stone slab attached to an outer frame with its surface exposed, a sheet-like heater (for example, a PTC heater) disposed below this slate, and a heating element for this heater. A heat insulating material is provided on the lower side, and a stone slab that dissipates far-infrared rays, such as celestial stone, is used.

In this foot warmer, when the heat from the heater is transmitted to the slate, the slate is warmed by this heat, and the slate is heated by the heat transmitted from the surface and the far-infrared rays radiated from the surface. When you put it on, you can get a heat retention effect by warming this leg.

Utility Model Registration No. 3125048

However, in this foot warmer, the heater is arranged under the slate, so the heat from the heater is transferred through the bottom surface of the slate, and this heat transfer is not efficient, and the slate is not warmed. There is a problem that it takes time to

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat retaining device capable of efficiently transferring heat from a heating means to a slate for heat dissipation.

A first heat retaining device of the present invention comprises a heat radiation stone plate for radiating far-infrared radiation, a stone plate holder for housing the heat radiation stone plate, and a heating means for heating the heat radiation stone plate, wherein the stone plate holder includes the heat radiation stone plate. It has a bottom wall portion that covers the bottom surface of the stone plate and four side wall portions that cover the entire peripheral side surface of the heat radiation stone plate, and the bottom wall portion and the four side wall portions are integrally formed of a metal material with high thermal conductivity . The heating means is attached to the bottom wall portion of the slate holder, and heat from the heating means is transmitted to the bottom wall portion of the slate holder through the bottom wall portion and the four side wall portions. It is characterized in that the heat is conducted to the entire area of the bottom surface and the peripheral side surface of the heat radiation stone plate.
The second heat insulator of the present invention comprises a heat radiation stone plate for radiating far infrared rays, a stone plate holder for accommodating the heat radiation stone plate, a heating means for heating the heat radiation stone plate, and a heater holder for housing the heating means. and the slate holder covers the entire bottom surface and peripheral side surface of the heat radiating slate,
The heating means is composed of a cylindrical cartridge heater, and the slate holder and the heater holder are integrally formed from a metal material with high thermal conductivity to constitute a holder body, and the radiating slate plate is mounted on the upper surface of the holder body. is provided with a slate containing portion for containing, a heater containing portion for containing the cartridge heater is provided on the lower side surface of the holder body, the cartridge heater is contained in the heater containing portion,
Heat from the cartridge heater is conducted to the heat radiation stone plate through the holder body .

In such a heat insulator, it is preferable that the heating means is composed of a cylindrical cartridge heater, and that the cartridge heater is housed in the heater holder and provided on the bottom side of the slate holder. heat can be efficiently transmitted to the heat radiating stone plate through the heater holder and the stone plate holder.

In addition, it is preferable to interpose a shim plate made of a metal material with high thermal conductivity or a thermally conductive cement with high thermal conductivity between the inner surface of the slate holder and the side surface of the heat radiating slate. By doing so, the heat radiation stone plate can be securely attached to the stone plate holder, and the efficiency of heat transfer from the stone plate holder to the side surface of the heat radiation stone plate can be further enhanced. A germanium slate and a tourmaline slate can be preferably used as the heat radiation slate.

According to the first heat insulator of the present invention, the slate holder is made of a highly thermally conductive metal material (eg, aluminum, aluminum alloy, etc.), and the slate holder covers the entire bottom surface and peripheral side of the heat radiating slate. Therefore, the heat from the heating means is conducted to the entire area of the bottom surface and peripheral side surfaces of the heat radiation stone plate via the bottom wall portion and the four side wall portions of the stone plate holder, thereby efficiently warming the heat radiation stone plate and relatively It is possible to heat the radiating stone plate to a desired temperature in a short period of time.
According to the second heat insulator of the present invention, the slate holder and the heater holder are integrally formed to constitute the holder body, the slate receiving portion is provided on the upper surface of the holder body, and the lower side surface of the holder body is provided with Since the heater accommodating portion is provided and the cartridge heater is accommodated in this heater accommodating portion, the heat from the cartridge heater can be more efficiently conducted to the radiating stone plate.

1 is a perspective view showing one embodiment of a warmer according to the present invention; FIG. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1 and partially omitting the interior of the heat insulator; FIG. 4 is a cross-sectional view showing a holder body in which a slate holder and a heater holder are integrated; FIG. 4 is a developed view showing a modified slate holder in a developed state; FIG. 2 is a perspective view showing a usage example in which the warmer according to the present invention is applied to a chair;

Hereinafter, one embodiment of a heat insulator according to the present invention will be described with reference to the accompanying drawings. In FIGS. 1 and 2, the heat insulator 2 shown has a rectangular housing body 4 to which a heat radiation stone plate 6 is attached. The housing body 4 includes a lower housing 8 installed on the floor surface 7 or the like, and an upper housing 10 arranged above the lower housing 8. The upper housing 10 is attached so as to cover the opening of the lower housing 8. be done.

In this embodiment, as shown in FIG. 2, a mounting plate 12 is fixed by welding to a plurality of locations on the inner surface of the side wall of the lower hauning 8, and a female screw hole (not shown) is provided in the upper portion of the mounting plate 12. . Through holes (not shown) are provided in the side wall of the upper housing 10 corresponding to the mounting plates 12 of the lower housing 8, and mounting screws 14 are screwed into the mounting plates 12 through the through holes. , an upper housing 10 is attached to the lower housing 8 .

Contrary to the construction described above, these mounting plates 12 are fixed by welding to the inner surface of the side wall of the upper housing 10, and through holes (not shown) corresponding to the respective mounting plates 12 are formed in the side wall of the lower housing 10. Upper housing 10 may be attached to lower housing 8 by forming and threading mounting screws 14 into mounting plate 12 through respective through holes.

A rectangular opening 18 is provided in the upper wall 16 of the upper housing 10 , and the heat radiation stone plate 6 is arranged so as to be exposed to the outside through the opening 18 . The radiating stone plate 6 is held by a stone plate holder 20 and attached to the housing body 4 as described later. The illustrated slate holder 20 is made of a metal material with high thermal conductivity, such as aluminum or an aluminum alloy, and has a slate containing portion 22 corresponding to the size of the heat sink 6 on its upper surface. In this form, the slate holder 20 has a bottom wall portion 24 and four side wall portions 26, 28, 30, 32 extending upward from the bottom wall portion 24. The bottom wall portion 24 and the four side wall portions 26-32 A slate containing portion 22 having an open upper surface is defined. Such a slate holder 20 is formed, for example, by cutting a block-shaped member.

The heat-dissipating stone plate 6 is preferably made of a material that dissipates far-infrared rays when heated, such as a germanium stone plate or a tourmaline stone plate. Germanium stone slabs are made by processing germanium ore, by mixing germanium pebbles and hardening them, or by kneading and hardening germanium stone into powder (for example, by kneading it into clay and baking it). tiles), etc. can be used. Also, the tourmaline stone slab can be made by processing raw tourmaline, by mixing and hardening tourmaline pebbles, or by kneading and hardening crushed tourmaline stone into powder (for example, by kneading into clay). baked to look like tiles), etc. can be used.

A heating means 34 for heating the heat radiation stone plate 6 is incorporated in the housing body 4 . As the heating means 34, it is preferable to use a cartridge heater 36 that is small and has a large output.

In this embodiment, a cartridge heater 36 is attached to a heater holder 38 and this heater holder 38 is attached to the slate holder 20 . The heater holder 38, like the slate holder 20, is made of a metal material with high thermal conductivity, such as aluminum or an aluminum alloy. The heater holder 38 has a rectangular shape smaller than the bottom wall portion 24 of the slate holder 20, and is formed with a pair of heater insertion holes 40 spaced apart in a predetermined direction (horizontal direction in FIG. 2). The cartridge heater 36 is inserted into the insertion hole 40 and fixed by a fixing screw (not shown) or the like. Such a heater holder 38 is formed, for example, by drilling a pair of heater insertion holes 40 in a block-shaped member.

This heater holder 38 is attached, for example, as follows. A plurality of through holes (not shown) are formed in predetermined portions of the bottom wall portion 24 of the slate holder 20, and female screw holes (not shown) are formed in predetermined portions of the heater holder 38 corresponding to the respective through holes of the slate holder 20 side. ), and a fixing screw (not shown) is screwed into the female threaded hole on the heater holder 38 side through the through hole on the slate holder 20 side, so that the heater holder 38 is attached to the lower surface of the bottom wall portion 24 of the slate holder 20. It is attached.

In this heat insulator 2 , the heater holder 38 is supported by the lower housing 8 via a plurality of stay members 42 . Male threaded portions 44 and 46 are provided at both ends of the stay member 42 . The heater holder 38 is attached to the lower housing 8 by projecting outward through a through hole 50 provided in the bottom wall portion 48 of the heater holder 38 and screwing a nut 52 onto the projecting portion. With this configuration, the heat sink slab 6 mounted on the slab holder 38 is supported by the lower housing 8 via the heater holder 38 and the plurality of stay members 42 .

In this heat insulator 2, the temperature of the heating means 34 (cartridge heater 36) is adjusted by temperature adjusting means, for example, a temperature adjusting dial (not shown), and the surface temperature of the heat sink slab 6 is, for example, 50 to 60°C. The temperature is adjusted accordingly. A main switch 56 is arranged on the upper wall 16 of the upper housing 10 . The main switch 56 is a switch for turning on and off the power, and turning it on turns the power on, and turning it off turns the power off. Although the main switch 56 is arranged on the upper wall 16 of the upper housing 10 in this embodiment, it may be arranged on the side wall of the upper housing 10 or may be arranged on the side wall of the lower housing 8. .

In relation to the slate holder 20, the heat insulator 2 is further configured as follows. When the heat sink slab 6 is attached to the slate housing portion 22 of the slate holder 20, as shown in FIG. It is preferable to configure the upper surface of the upper wall 16 so as to define the same plane. By configuring in this way, surface unevenness around and near the heat sink 6 is eliminated, and safety in use is ensured. can be done.

In this mounted state, the bottom wall portion 24 of the stone plate holder 20 covers the entire bottom surface of the heat dissipation stone plate 6, and the inner surfaces of the four side wall portions 26 to 32 of the stone plate holder 20 cover the peripheral side surfaces of the heat dissipation stone plate 6 (this form With this configuration, the heat radiation from the heat radiation stone plate 6 is radiated only from the upper surface, and wasteful heat radiation can be prevented. Further, the heat conducted from the cartridge heater 36 to the heat radiation stone plate 6 is transmitted to the bottom surface of the heat radiation stone plate 6 through the bottom wall portion 24 of the stone plate holder 20, and also to the heat radiation stone plate 6 through the four side wall portions 26 to 32 of the stone plate holder 20. Since the heat is also transmitted to the four sides and thus transferred, the efficiency of heat conduction to the heat radiation stone plate 6 via the stone plate holder 20 is enhanced, and the stone plate 6 can be efficiently heated for a relatively short time. can be warmed by

In addition, in order to improve the contact of the heat sink slab 6 to the slate holder 20 to securely fix it and to increase the heat conductivity, as shown in FIG. It is preferable to interpose one or a plurality of shim plates 62 between the peripheral side surfaces of the stone plate 6 (in this embodiment, the four side surfaces of the heat radiation stone plate 6) as necessary. The shim plate 62 can be made of a metal material with high thermal conductivity, such as aluminum or an aluminum alloy, like the slate holder 20 . Instead of the shim plate 62, a thermally conductive cement (not shown) having high thermal conductivity is interposed between the inner surfaces of the four side walls 26 to 32 of the slate holder 20 and the peripheral side surface of the heat sink slab 6. Alternatively, the heat-conducting cement can be used to securely fix the heat-dissipating stone slab 6 and to enhance heat conduction from the slate holder 20 to the slate 6 .

This warmer 2 can be conveniently used as a foot warmer, and when it is used as a foot warmer, for example, the foot is placed on the surface of the radiating stone plate 6 and the main switch 56 is turned on. When the cartridge heater 36 is turned on, current flows through the heating means 34 (cartridge heater 36 ) to generate heat. When the heat is transmitted in this way, the radiating stone plate 6 is warmed, and the feet are warmed by the heat transmitted to the surface of the radiating stone plate 6 and the far-infrared rays radiated from the surface, and the feet can be kept warm. .

Although two cartridge heaters 36 are used as the heating means 34 in the above-described embodiment, one or three or more cartridge heaters may be used. Further, in place of such a cartridge heater 36, other types of heaters known per se may be used.

Also, in this embodiment, the heater holder 38 is attached to the lower housing 8 via a plurality of stay members 42. It may be attached to the housing 8 .

Also, as shown in FIG. 3, the slate holder and the heater holder may be integrated. In addition, in the following embodiments and modifications, the same reference numerals are assigned to substantially the same elements as in the embodiment described above, and the description thereof will be omitted.

In FIG. 3, the illustrated holder body 72 has a rectangular accommodation body portion 74 and four side wall portions (three side wall portions 76, 78 and 80 are shown in FIG. 3) extending upward from the peripheral side portion of the accommodation body portion 74. ), and the housing body 74 and the four side walls 76 to 80 define a stone plate housing portion 82 corresponding to the size of the heat radiation stone plate 6 . The heat-dissipating stone plate 6 is accommodated in the stone plate accommodating portion 82, the upper surface of which is exposed to the outside through the opening of the stone plate accommodating portion 82, and the upper portion of the holder main body 72 functions as a stone plate holder.

A pair of heater insertion holes 86 corresponding to the size of a cartridge heater 84 as heating means are provided in the lower portion of the holder main body 72 (specifically, the housing main body portion 74). A cartridge heater 84 is inserted and fixed in the holder body 72, and the lower portion of the holder body 72 functions as a heater holder.

When this holder main body 72 is used, the heat from the cartridge heater 84 is transmitted to the heat dissipating stone plate 6 through the holder main body 72, and the heat from this holder main body 72 to the heat dissipating stone plate 6 is transferred to the surface of the containing body portion 74 of the holder main body 72. The heat is transmitted to the bottom surface of the heat radiation stone plate 6 through the heat sink plate 6 and to the peripheral side surfaces (four side surfaces) of the heat radiation stone plate 6 through the inner surfaces of the four side wall portions 76 to 80 of the holder body 72 . Therefore, when this holder main body 72 is used, heat is transferred from the cartridge heater 84 from the bottom surface and peripheral side surfaces (that is, four side surfaces) of the radiating stone plate 6 in the same manner as described above. can increase the efficiency of heat conduction. Furthermore, since the distance between the cartridge heater 84 and the heat radiation stone plate (not shown) can be shortened, the heat transfer efficiency can be further enhanced.

In this configuration, as shown in FIG. 3, both lower corners (lower corners in the arrangement direction of the cartridge heater 84) of the holder main body 72 are notched, and are directed toward the side wall portions 76 and 78. It is preferable to use an inclined surface 88 that inclines upward, and by configuring in this way, waste of materials can be reduced, and weight reduction can be achieved.

FIG. 4 shows a variant of the slate holder, in which the slate holder is formed, for example, by bending. In FIG. 4 showing a developed view of the slate holder, the illustrated slate holder 92 comprises a rectangular mounting main body 94 and four side walls 96, 98, 100, 102 extending outward from the mounting main body 94. , and the four side walls 96 to 102 extending upward from the mounting main body 94 are bent, for example, upward (front side) by valley folding along the dashed lines 104. is formed.

In this slate holder 92, a slate containing portion is defined by a mounting main body 94 and four side walls 96 to 102, and the radiating slate 6 is contained in this slate containing portion. Even in such a configuration, heat is transferred from the surface of the mounting main body 94 of the slate holder 92 to the bottom surface of the heat sink 6, and from the inner surfaces of the four side walls 96 to 102 to the peripheral side of the heat sink 6 ( In this variant, the heat is transferred to the four sides), and therefore the efficiency of the heat transfer to the heat sink 6 can be increased, in the same way as described above.

The warmer having such a structure can be suitably used as a foot warmer by using it as it is, but it can also be used by incorporating it into a chair, a bench, or the like. Referring to FIG. 5, in this usage example, a warmer 112 is incorporated into a chair 114 and used. A heat retaining device 112 is incorporated in a seat portion 116 of a chair 114, and a heat radiating stone plate 118 of this heat retaining device 112 is exposed to the outside from the surface of the seat portion 116.例文帳に追加In such a chair 114 , the user sits on the heat radiating stone plate 118 of the warmer 112 incorporated in the seat portion 116 .

In this example, it is incorporated in the seat portion 116 of the chair 114 , but it may be incorporated in the backrest portion of the chair 114 instead of or in addition to the seat portion 114 . Also, in place of the chair 114, although not shown, a plurality of warmers may be incorporated in the seat portion of an elongated bench at intervals, and a plurality of warmers may also be incorporated in the backrest portion of the bench. , or can be incorporated into a bed or the like as well.

Although one embodiment of the warmer according to the present invention has been described above, the present invention is not limited to such an embodiment, and various changes and modifications can be made without departing from the scope of the present invention.

2,112 warmer 4 housing main body 6,118 heat radiation stone plate 20,92 stone plate holder 22 stone plate accommodating portion 34 heating means 36,84 cartridge heater 38 heater holder 40,86 heater insertion hole 72 holder main body 114 chair 116 seat

Claims (5)

A heat radiation stone plate that radiates far infrared rays, a stone plate holder that houses the heat radiation stone plate, and a heating means for heating the heat radiation stone plate, wherein the stone plate holder includes a bottom wall that covers the bottom surface of the heat radiation stone plate, The heat dissipating stone plate has four side walls covering the entire peripheral side surface, and the bottom wall and the four side walls are integrally formed of a metal material with high thermal conductivity, and the heating means is the stone plate holder. The heat from the heating means is transmitted to the bottom wall of the slate holder, and the bottom and peripheral side surfaces of the radiating stone plate are transmitted through the bottom wall and the four side walls. A warmer characterized in that the heat is conducted to the entire area of the The heating means is composed of a cylindrical cartridge heater, the cartridge heater is housed in a heater holder, the heater holder is provided on the bottom surface side of the slate holder, and is made of a metal material with high thermal conductivity. 2. The warmer according to claim 1, characterized in that a A heat radiation stone plate that radiates far infrared rays, a stone plate holder that houses the heat radiation stone plate, a heating means for heating the heat radiation stone plate, and a heater holder that houses the heating means, wherein the stone plate holder includes the heat radiation stone plate. It covers the entire bottom surface and peripheral side of the
The heating means is composed of a cylindrical cartridge heater, and the slate holder and the heater holder are integrally formed from a metal material with high thermal conductivity to constitute a holder body, and the radiating slate plate is mounted on the upper surface of the holder body. is provided with a slate containing portion for containing, a heater containing portion for containing the cartridge heater is provided on the lower side surface of the holder body, the cartridge heater is contained in the heater containing portion,
A heat retaining device, wherein heat from the cartridge heater is conducted to the radiating stone plate via the holder body. A shim plate made of a metal material with high thermal conductivity or a thermally conductive cement with high thermal conductivity is interposed between the inner surface of the slate holder and the side surface of the radiating stone plate. The warmer according to claim 1 or 3 . 4. The heat retaining device according to claim 1 , wherein said heat radiating stone plate is a germanium stone plate or a tourmaline stone plate.

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