JP7575223B2 - Heating and cooling devices - Google Patents

Description

The present invention relates to heating and cooling devices, and in particular to devices that are safe and can efficiently provide a sensory warmth or coldness.

Air circulation heating devices and radiant heating devices have been known as heating devices that heat from a distance without contact, rather than heating devices that heat by conductive heat transfer through direct contact. Fan heaters, for example, are known as air circulation heating devices. Various types of radiant heating devices are also known, and the heating target is warmed by radiant heat emitted from, for example, halogen lamp heaters, ceramic heaters, carbon heaters, hot water piping, etc. Examples of technologies related to radiant heating devices, so-called radiant heaters, include Patent Document 1. Patent Document 2 is also cited as a reference technology.

JP 2005-212556 A: Denso Patent No. 6320935: Kurabe

Recently, it has been considered to use this radiant heater close to the human body or to attach it to various devices. In the case of air circulation type heating devices such as fan heaters, it is necessary to combine them with a blower, which limits the shape and makes them large, so they cannot be made simple. In addition, in the case of radiant heaters, it is of course necessary to prevent electric shock, but it is also important to prevent burns caused by touching the heater and to minimize the thermal impact on other devices. Therefore, the internal temperature and surface temperature of such radiant heaters must be kept at around 100 degrees Celsius. On the other hand, since the amount of heat radiated is proportional to the fourth power of the temperature of the radiant surface, the temperature of the radiant heater's radiant surface must be as high as possible in order to sufficiently heat the heating object. This is the dilemma between safety and heating capacity. In addition, in these days when energy conservation is being called for, it is also required to obtain maximum warmth with minimum electricity. From this perspective, it is difficult to realize a simple non-contact heating device.

The present invention was made to solve these problems with the conventional technology, and its purpose is to provide a heating device that is safe and can efficiently provide a sense of warmth, and a cooling device that can efficiently provide a sense of coldness.

In order to achieve the above-mentioned object, the heating device according to the present invention comprises a heating section and a warm air storage member, the warm air storage member having a partition wall and a warm air storage compartment separated by the partition wall, and the warm air storage compartment has an opening.
It is also conceivable that the heating portion has a substantially planar shape, and the warm air retention member substantially covers one surface of the heating portion.
Furthermore, when the partition wall is projected onto the plane of the heating unit, the plane of the heating unit may be covered by the projection of the partition wall.
In addition, it is considered that the surface of the heating portion that is not covered by the warm air storage member is substantially covered with a heat insulating material.
It is also conceivable that the partition walls are black.
The cooling device according to the present invention comprises a cooling section and a cold air storage member, the cold air storage member having a partition wall and a cold air storage compartment separated by the partition wall, the cold air storage compartment having an opening.
It is also conceivable that the cooling portion has a substantially planar shape, and the cold air retention member substantially covers one surface of the cooling portion.
Furthermore, when the partition wall is projected onto the plane of the cooling part, it is considered that the plane of the cooling part is substantially covered by the projection of the partition wall.
In addition, it is considered that the surface of the cooling portion that is not covered by the cold air retaining member is substantially covered with a heat insulating material.
It is also conceivable that the partition walls are black.

In the heating device according to the present invention, the air (warm air) warmed by the heating section is stored in the warm air storage section. When an object to be heated, such as a human body, approaches, a surrounding air flow or pressure change occurs, causing the warm air to leak from the opening, and the object to be heated by the warm air. This warm air feels very comfortable, especially for the human body. In addition, from a safety perspective, the heating section is insulated by the warm air storage member, so that even if the heating device is directly touched, it does not reach a temperature that would cause burns. In addition, since the warm air is stored in the warm air storage section, this warm air is stored until the human body approaches, so that an excellent heating effect can be obtained with little power, which contributes to power saving.
In addition, in the cooling device according to the present invention, the air (cold air) cooled by the cooling unit is stored in the cold air storage compartment. When an object to be cooled, such as a human body, approaches, a surrounding air flow or pressure change occurs, causing the cold air to leak from the opening, and the cold air cools the object to be cooled. This cooling is particularly comfortable for the human body. In terms of safety, the cooling unit is insulated by the cold air storage member, so that even if the cooling device is directly touched, the temperature does not reach a level that would cause frostbite. Furthermore, since the cold air is stored in the cold air storage compartment until a human body or the like approaches, an excellent cooling effect can be obtained with little power, which contributes to power saving.

1 is a partially cutaway plan view showing a configuration of a heating device according to the present invention. 1 is an enlarged cross-sectional view illustrating a schematic view of a main part of a heating device according to a first embodiment of the present invention. FIG. 2 is a diagram showing the configuration of a heating unit manufacturing apparatus used in the present invention. FIG. 2 is a partial perspective view showing how heater elements are arranged in a predetermined pattern in the heating device of the present invention. FIG. 2 is a partially cutaway side view showing an example of a heater element used in the present invention. FIG. 11 is an enlarged cross-sectional view illustrating a schematic view of a main part of a heating device according to another embodiment of the present invention.

The following describes an embodiment of the present invention with reference to the drawings.

First, the first embodiment will be described with reference to Figs. 1 to 5. The configuration of the heating unit 10 in the first embodiment will be described. In the first embodiment, a sheet heater consisting of a heater element 1 made of a cord-shaped heater and a substrate 9 is used as the heating unit 10. The heater element 1 is configured as shown in Fig. 5. First, there is a core wire 3 made of an aromatic polyamide fiber bundle having an outer diameter of about 0.2 mm, and five conductor wires 5a made of hard tin-containing copper alloy wires having an element diameter of 0.08 mm are wound in a spiral shape with a pitch of about 1.0 mm around the outer periphery of the core wire 3. An insulating coating 5b containing silicone formed by applying and drying an alkyd silicone varnish (alkyd: silicone = 50: 50) is formed on the conductor wires 5a to a thickness of about 5 μm. The outer diameter of the heater element 1 configured in this manner is 0.38 mm. In addition, a polyethylene resin composition is extruded to a thickness of 0.13 mm around the outer periphery of the heater element 1 to form a coating 7. This coating 7 can be melted by applying a certain amount of heat and fused to other members. The finished outer diameter of the heater element 1, including the coating 7, is 0.64 mm.

The heater element 1 having the above configuration may be adhered and fixed to a substrate 9. The substrate 9 in the first embodiment is made of foamed polyurethane resin ^with an apparent density of 0.05 g/cm3 (based on JIS K7222), hardness of 30 (based on JIS K6400-2), length of 240 mm, width of 320 mm and thickness of 8 mm. Such substrate 9 is cut into a desired shape by a known method such as die cutting.

Next, the configuration for arranging the heater element 1 on the substrate 9 in a predetermined pattern and bonding and fixing it thereto will be described. FIG. 3 is a diagram showing the configuration of a hot press heater manufacturing device 13 for pressurizing and heating the substrate 9 on which the heater element 1 is arranged. First, there is a heater pattern jig 15, on which a plurality of locking mechanisms 17 are provided. As shown in FIG. 4, the locking mechanism 17 has a pin 19, which is inserted from below into a hole 21 drilled in the hot press jig 15. A locking member 23 is attached to the upper part of the pin 19 so as to be movable in the axial direction, and is constantly biased upward by a coil spring 25. Then, as shown by the phantom lines in FIG. 4, the heater element 1 is hooked on the locking members 23 of the plurality of locking mechanisms 17, and the heater element 1 is arranged in a predetermined pattern.

Returning to FIG. 3, a press plate 27 is arranged above the plurality of locking mechanisms 17 so that it can be raised and lowered. That is, the heater element 1 is arranged in a predetermined pattern shape while being hooked to the locking members 23 of the plurality of locking mechanisms 17, and the substrate 9 is placed on top of it. In this state, the press plate 27 is lowered to apply heat and pressure to the heater element 1 and the substrate 9. When the press hot plate 27 is lowered, it is necessary to design the compression amount of the substrate 9 to be at least larger than the outer diameter of the heater element 1. As a result, the substrate 9 is compressed and the heat-sealing layer 7 of the heater element 1 is fused to bond and fix the heater element 1 and the substrate 9. Note that when the heat press hot plate 27 is lowered to apply heat and pressure, the locking members 23 of the plurality of locking mechanisms 17 move downward against the biasing force of the coil spring 25. In this embodiment, the substrate 9 is then turned over, and the press hot plate 27 is used to further heat and press the surface on which the heater element 1 is arranged. This makes both sides of the heating unit 10 flat, preventing gaps from forming when the insulation material 41 and the warm air storage member 30 are attached.

Next, the warm air storage member 30 is attached to the surface of the base material 9 of the heating unit 10 on which the heater element 1 is not disposed. The warm air storage member 30 in this embodiment is made of black paper, 240 mm long, 320 mm wide, and 5 mm thick. In this embodiment, the warm air storage member 30 and the heating unit 10 have the same vertical and horizontal dimensions and the same shape of the main surface, and the warm air storage member 30 completely covers one surface of the heating unit 10. The warm air storage member 30 has a partition wall 31 and a warm air storage section 33 separated by the partition wall 31, and the warm air storage section 33 has an opening 35. In addition, on the main surface of the warm air storage member 30, parallel partition walls 31a are arranged at intervals of about 3 mm in the long side direction, and corrugated partition walls 31b are arranged so as to connect adjacent partition walls 31a, and the configuration is such that the cross section of a so-called corrugated cardboard is arranged. The thickness of the partitions 31 (31a and 31b) is 0.3 mm. The partitions 31a are arranged not perpendicular to the main surface of the warm air storage member 30 but inclined at about 30 degrees. Therefore, a gap that can become the warm air storage compartment 33 is formed in the warm air storage member 30, but it is not possible to see through to the other side from a direction perpendicular to the main surface of the warm air storage member 30. In other words, when the partitions 31a are projected onto the plane of the heating unit 10, the plane of the heating unit 10 is covered by the projection of the partitions 31a. The volume of the warm air storage compartment 33 is about 30 ^mm3 , and the area of the opening 35 is about 6 ^mm2 .

When attaching the heating unit 10 and the warm air storage member 30, an adhesive layer (not shown) may be formed on the heating unit 10, the warm air storage member 30, or both. The adhesive layer may be formed using an adhesive tape, adhesive, or the like. In addition, it is preferable to form the adhesive layer by first forming an adhesive layer consisting of only an adhesive on a release sheet, and then transferring the adhesive layer from the release sheet to the surface of the heating unit 10.

A first insulating material 41 can be arranged on the surface of the base material 9 of the heating unit 10 on which the heater element 1 is arranged. The first insulating material 41 has a planar shape of 240 mm in length, 320 mm in width, and 5 mm in thickness, and is made of a foamed silicone resin with an apparent density of 0.17 kg/m ³ (based on JIS-K6401) and a hardness of 8N (based on JIS-K6301). In this embodiment, the first insulating material 41 and the heating unit 10 have the same length and width dimensions and the same shape of the main surface, and the first insulating material 41 completely covers one side of the heating unit 10. In addition, a metal layer (not shown) made of aluminum or the like is formed on one side of the first insulating material 41. Such a first insulating material 41 is formed into a desired shape by a known method such as die cutting.

A second insulating material 42 can be placed on the surface of the first insulating material 41 that is not in contact with the heater element 1. The second insulating material 42 is a planar three-dimensional structure measuring 240 mm in length, 320 mm in width, and 5 mm in thickness, and is made of polypropylene resin. This second insulating material 42 is made of two flat plates supported by a partition wall, and is known as a plastic board.

The warm air storage member 30, the heating section 10, the first insulating material 41 and the second insulating material 42 may be arranged in layers and fixed at their outer peripheries with a fixing material 45 made of adhesive tape.

By carrying out the above operations, a heating device 51 as shown in Figures 1 and 2 can be obtained. Note that Figure 2 is a cross-sectional view showing an enlarged view of the main parts of Figure 1. Also, in Figure 1, the warm air storage member 30, the heating section 10, and the first insulating material 41 are partially cut away, but in reality, the warm air storage member 30, the heating section 10, the first insulating material 41, and the second insulating material 42 are stacked together with the same shape.

In the heating device 51 obtained as described above, both ends of the heater element 1 are pulled out and connected to lead wires (not shown), which connect the heater element 1, a temperature control device (not shown), and a connector (not shown). The temperature control device is placed on the heater element 1, and controls the temperature of the radiant heater by the heat generated by the heater element 1. It is then connected to a power source (not shown) via the connector described above.

The heating device 51 thus obtained can be placed with the surface on which the warm air storage member 30 is located facing downward. As a result, the air heated by the heating section 10 is retained in the warm air storage section 33. When an object to be heated, such as a human body, approaches, the surrounding air flow and pressure change occur, and warm air is discharged from the opening 35, and the object to be heated is warmed by this warm air. In particular, the human body feels this way of being warmed as very comfortable. The effect of the heating device 51 according to the present invention can be explained as follows. First, since the warm air storage member 30 has a heat storage function, a temporary amount of heat at the required timing is discharged in an amount greater than the power consumption per unit time, so that a high heating effect can be obtained with low power consumption. In addition, since warm air is discharged due to the surrounding air flow and pressure change when an object to be heated, such as a human body, approaches, efficient heating can be achieved only when the human body approaches, and when the human body moves away, heat storage is automatically started, and heat storage and discharge of warm air can be automatically switched. In addition, because heat is stored by storing warm air, there is little heat loss due to air convection, and the temperature near the heating unit 10 can be raised efficiently, thereby improving the heating effect by radiation. Also, from a safety standpoint, the heating unit 10 is insulated by the warm air storage member 30, so it does not reach a temperature that would cause burns even if you touch the heating device 51 directly.

On the other hand, if the heating device 51 in this embodiment is placed with the surface containing the warm air storage member 30 facing up, the effect of the present invention cannot be achieved. In such a placement, the air heated by the heating section 10 rises, is not retained in the warm air storage section 33, and is immediately released from the opening 35. The heating device 51 in this embodiment can also be placed, for example, by attaching it to a vertical surface or a curved surface, but in that case, it needs to be placed so that the opening 35 is on the lower side of the warm air storage section 33.

The temperature of the heating device 51 according to the first embodiment obtained as described above was measured by the following measurement method. In an environment where the room temperature was 0°C, the heating device 51 was placed at a predetermined distance away from the thermocouple so as to face it. The heating device 51 was attached to a wall surface whose main surface was perpendicular to the horizontal plane, and was placed so that the opening 35 faced downward. In this state, electricity was passed through the heating device 51 so that the output was 60 W, and the device was held for 30 minutes, during which the temperature change was measured. The distance between the thermocouple and the heating device 51 was set to four types: 0 mm, 50 mm, 100 mm, and 150 mm. In comparison with the first embodiment, the comparative embodiment 1 was placed so that the opening 35 faced upward, and the comparative embodiment 2 was not placed so that the warm air storage member 30 was not present, and temperature measurements were also performed in the same manner as above. The temperatures obtained by these temperature measurements after holding for 30 minutes are shown in Table 1.

In addition, a sensory test was also conducted on the heating devices according to the above-mentioned embodiment 1, comparative embodiment 1, and comparative embodiment 2. First, in a windless environment at room temperature 0°C, the heating device 51 was placed in the same manner as in the temperature measurement, and in that state, electricity was applied to the heating device 51 so that the output was 60 W, and the device was held for 10 minutes. After that, the subject inserted the palm of his right hand 100 mm away from the heating device 51 and held the device for 5 seconds. This test was conducted on 10 subjects on the heating devices according to embodiment 1, comparative embodiment 1, and comparative embodiment 2, and the subjects were asked to indicate the order in which they felt the warmest. The order of the tests for embodiment 1, comparative embodiment 1, and comparative embodiment 2 was random for each subject. The warmest item was given 3 points, the second warmest item was given 2 points, and the third warmest item was given 1 point. The total scores of the 10 subjects are shown in Table 1.

As shown in Table 1, the heating device according to the first embodiment had the highest temperature at points 50 mm, 100 mm, and 150 mm away from the heating device 51, and it was confirmed that the heating effect was high. In addition, at 0 mm, i.e., at the surface of the heating device 51, the heating device according to the first embodiment had a temperature of 65°C or less. This is not a temperature that would cause immediate burns even if touched directly. In ISO 13732-1:2006, regarding the relationship between contact time and burn temperature, the threshold value for a contact time of 10 seconds is 65°C when the material is ceramic, glass, or stone, and 70°C when the material is plastic. In addition, in the sensory test, the heating device according to the first embodiment also scored the highest, with 8 out of 10 people responding that it was the warmest. In this way, it was confirmed that the heating device according to the first embodiment is safe and can efficiently provide sensory warmth.

The present invention is not limited to the above embodiment. First, the heater element 1 may be configured not only as a cord-shaped heater as in the above embodiment, but also as a cord-shaped heater of various other forms. For example, when considering flexibility and tensile strength, the core wire 3 used in the above embodiment is effective, but it is also possible to use a plurality of conductor wires drawn together or twisted together without using the core wire 3. In addition, when the heating rate is to be increased, it is also possible to use a nickel-copper alloy wire as the conductor wire 5a. In addition, in the above embodiment, the conductor wire 5a is coated with an insulating coating 5b, but it is also possible not to coat the insulating coating 5b. In addition, various cord-shaped heaters can be selected with reference to the above-mentioned Patent Document 2. In addition, various heater elements can be used, such as a sheet heater, a tubular heater, a film heater, a lamp heater, a carbon heater, and a hot water pipe, without being limited to a cord-shaped heater.

In the present invention, the heater element 1 can be directly disposed on the warm air storage member 30, and in that case, a form in which the substrate 9 is not used can also be considered. In addition, the substrate 9 can be made of materials such as the first insulating material 41 and the second insulating material 42, a film-shaped material such as resin, metal foil, etc. For example, various polymer foams such as foamed resin sheets and foamed rubber sheets made of various materials are also considered. In addition, the state of the air bubbles can be made closed or open, and the foaming rate, hardness, and material used can be selected according to the characteristics such as insulation according to the purpose. Materials can be selected from various resins, rubbers, thermoplastic elastomers, etc., such as polyurethane resin, chloroprene rubber, silicone resin, silicone rubber, neoprene rubber, diene rubber, nitrile rubber, natural rubber, polyethylene resin, polypropylene resin, vinyl chloride resin, ethylene-vinyl acetate copolymer, and melamine resin. Metal foils can be selected from various materials such as aluminum foil, copper foil, silver foil, stainless steel foil, and those coated with coatings. In addition, nonwoven fabric or woven fabric can be used as the substrate 9. It is also possible to use multiple substrates 9 by stacking them together, in which case each substrate 9 may be made of a different material or have a different porosity.

It is preferable to form a metal layer on the surface of the base material 9 or the first insulating material 41 that is closer to the heater element 1, since this allows the heat from the heater element 1 to be uniformly transferred to the entire surface of the heating device 51. Materials with good thermal conductivity, such as aluminum, copper, silver, and gold, are preferable for the metal layer. The metal layer can be formed by various methods, such as vapor deposition, spraying, and attaching foil with an adhesive or adhesive tape.

In addition, for example, an adhesive layer may be formed around the outer periphery of the heater element 1, and this may be used to adhere the heater element 1 to the substrate 9, etc.; the heater element 1 may be clamped and fixed by a substrate 9 or the like having an adhesive or the like formed on its surface; the heater element 1 may be fixed to the substrate 9 or the like by sewing; the heater element 1 may be fused and fixed by melting the substrate 9 or the like side; or an adhesive may be applied or otherwise applied to the location where the heater element 1 is to be disposed, and the heater element 1 may be adhered and fixed to the substrate 9 or the like.

By using various insulating materials such as the first insulating material 41 and the second insulating material 42, it is possible to prevent heat from being transferred to the opposite side of the object to be heated, and to increase thermal efficiency. As insulating materials, various polymer foams such as foamed resin sheets and foamed rubber sheets, and materials with a structure that retains air for insulation, such as a structure in which a partition wall supports the space between flat plates, are preferably used. Of course, multiple insulating materials may be used.

The warm air storage member 30 can be of various configurations, so long as it has a warm air storage compartment 33 for holding warm air and an opening 35 for discharging the warm air. The warm air storage compartment 33 may not function as a warm air storage compartment depending on the position of the opening 35 and the location and orientation of the heating device 51. For example, if the opening 35 is located above the partition wall 31, the warm air will be discharged without being stored, and therefore it will not function as a warm air storage compartment. At least a portion of the enclosed space must be above the opening 35, and the enclosed space above the opening 35 will be the warm air storage compartment 33.

The partition wall 31 may have a variety of shapes. The shape of the partition wall 31 is also designed to be optimal depending on the location and orientation of the heating device 51. For example, if the surface containing the warm air storage member 30 is placed on the upper side, as shown in FIG. 6, a bent partition wall 31 will store the warm air, forming a warm air storage compartment 33.

In the above embodiment, the partition 31a is disposed at an angle, so that when the partition 31 is projected onto the plane of the heating unit 10, the plane of the heating unit 10 is preferably covered by the projection of the partition 31. This makes it easier for the radiant heat from the heating unit 10 to hit the partition 31, and the air in the warm air storage section 33 can be efficiently heated. In addition, the heating unit 10 is less visible from the outside, which makes for a good appearance.

There is no particular limitation on the material that constitutes the warm air storage member 30, but it is preferable to constitute it with a material with low thermal conductivity, such as the paper used in the above embodiment. In addition, it can be constituted with, for example, cloth materials made of various fiber materials, wood materials such as solid wood and laminated wood, rubber materials, resin materials, foamed rubber materials, foamed resin materials, etc. It can also be constituted with ceramic materials and metal materials, but attention must be paid to thermal conduction. These materials can also be appropriately combined, for example, by partially changing the material, pasting, coating, etc. In particular, it is preferable to place a material with low thermal conductivity on the surface portion of the warm air storage member 30 that the human body can touch. As a material that constitutes the warm air storage member 30, a material containing a deodorizing catalyst, an antibacterial agent, a heat storage material, etc. can be used. It is possible to mix these with the material that constitutes the warm air storage member 30, or to apply these to the surface of the warm air storage member 30. In addition, it is preferable that the warm air storage member 30 is black in consideration of the radiation efficiency to the heated object.

In the above embodiment, the warm air storage member 30 completely covers the heating section 10, but for example, a configuration in which a part of the heating section 10 is not covered is also conceivable. In the present invention, it is sufficient for the warm air storage member 30 to substantially cover one side of the heating section 10, and it is not necessary for it to completely cover the entirety. The area to be covered is designed appropriately depending on the shape and form of the heating section 10 and the warm air storage member 30, or the mounting location of the heating device 51, but it is conceivable for it to cover approximately 90% or more of the area of the heating section 10. In addition, in the above embodiment, the first insulating material 41 completely covers the heating section 10, but for example, a configuration in which a part of the heating section 10 is not covered is also conceivable. In the present invention, it is sufficient for the insulating material (for example, the first insulating material 41 or the second insulating material 42, etc.) to substantially cover one side of the heating section 10, and it is not necessary for it to completely cover the entirety. The area to be covered is designed appropriately depending on the shape and form of the heating unit 10 and the insulation material, or the installation location of the heating device 51, but it is expected that it will cover approximately 90% or more of the area of the heating unit 10.

The heating device according to the present invention can be made into a cooling device by using the heating section as a cooling section. In this case, the warm air storage member in the heating device becomes a cold air storage member, and the cold air storage member has a cold air storage compartment for holding cold air and an opening for discharging the cold air. In addition, since cold air descends, the opening needs to be formed above the cold air storage compartment. Possible cooling sections include, for example, Peltier elements, cold water piping, and cold air piping.

As described above in detail, the present invention provides a heating device and a cooling device that are safe and can efficiently provide a sense of warmth or coldness. Such heating and cooling devices can be suitably used as various heat and cooling sources, for example, in household heating and cooling appliances, heating and cooling devices for automotive interiors, industrial heating and cooling devices, various snow removal and ice melting devices, anti-fogging devices, heating and cooling cooking appliances, and thermotherapy devices that use radiant heat.

Reference Signs List 1 Heater element 9 Substrate 10 Heating section 30 Warm air storage member 31 (31a, 31b) Partition wall 33 Warm air storage compartment 35 Opening 41 First insulating material 42 Second insulating material 51 Heating device

Claims (6)

A heating device comprising a heating section and a warm air storage member, the warm air storage member having a partition and a warm air storage compartment separated by the partition, the warm air storage compartment having an opening , the heating section being generally planar in shape, the warm air storage member generally covering one side of the heating section, and when the partition is projected onto the plane of the heating section, the plane of the heating section is generally covered by the projection of the partition. A heating device comprising a heating section and a warm air storage member, the warm air storage member having a partition wall and a warm air storage compartment separated by the partition wall, the warm air storage compartment having an opening, the heating section being generally planar in shape, the warm air storage member generally covering one side of the heating section, and the side of the heating section not covered by the warm air storage member being generally covered by an insulating material. A heating device comprising a heating section and a warm air storage member, the warm air storage member having a partition and a warm air storage compartment separated by the partition, the warm air storage compartment having an opening, the heating section being generally planar in shape, the warm air storage member generally covering one side of the heating section, when the partition is projected onto a plane of the heating section, the plane of the heating section being generally covered by a projection of the partition, and the side of the heating section that is not covered by the warm air storage member being generally covered by an insulating material. A cooling device comprising a cooling section and a cold air storage member, the cold air storage member having a partition and a cold air storage compartment separated by the partition, the cold air storage compartment having an opening , the cooling section being generally planar in shape, the cold air storage member generally covering one side of the cooling section, and when the partition is projected onto the plane of the cooling section, the plane of the cooling section is generally covered by the projection of the partition. A cooling device comprising a cooling section and a cold air storage member, the cold air storage member having a partition and a cold air storage compartment separated by the partition, the cold air storage compartment having an opening, the cooling section being generally planar in shape, the cold air storage member generally covering one side of the cooling section, and the side of the cooling section not covered by the cold air storage member being generally covered by an insulating material. A cooling device comprising a cooling section and a cold air storage member, the cold air storage member having a partition and a cold air storage compartment separated by the partition, the cold air storage compartment having an opening, the cooling section being generally planar in shape, the cold air storage member generally covering one side of the cooling section, when the partition is projected onto a plane of the cooling section, the plane of the cooling section being generally covered by a projection of the partition, and the side of the cooling section not covered by the cold air storage member being generally covered by an insulating material.

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