JP2000297398A - Interior apparatus provided with aluminum panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily improve the adhesion of a coating film for a base material of aluminum, also to reduce the unevenness of film thickness and to satisfactorily maintain its appearance. SOLUTION: Since there are fine gaps on the surface of an anodized aluminum film 74, when a coating film 75 having any one among oil crackability, hydrophilic properties and water retentivity is formed on the upper face thereof, the gaps exert anchor effect to exceedingly improve the adhesion of the coating film 75 for a base material 73 of aluminum. Moreover, since the adhesion of the coating film 75 is satisfactory, the coating film 75 can uniformly be formed on the base material 73 of aluminum with good appearance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor apparatus having an aluminum panel and an aluminum panel used for various panels such as exterior and interior panels.

[0002]

Generally, aluminum is lightweight and has good workability, and has high decorativeness and good corrosion resistance by being painted, silk-printed or colored. It is used for the interior and exterior surfaces of panels that form outer shells. Furthermore, since aluminum has a low specific gravity and a good thermal conductivity, it has a characteristic that it has a high instantaneous heat when heated and has less heating unevenness, and is also used in various heating devices.

On the other hand, titanium oxide of the anatase type (TiO 2)
₂ ) Photocatalyst application technology utilizing photocatalysis by powder has increased in recent years. Photocatalysts have various functions such as antifouling property by decomposing organic compounds such as oil, improvement of hydrophilicity, prevention of fogging and water retention, sterilization by oxidizing action, deodorization, deodorization, and water purification. This photocatalyst is used by impregnating fibers, adding it to fluorine or silicone paints or various plastics, or coating metal, plastic, sheets, pottery, glass, and other surfaces.

As described above, aluminum is frequently used for the interior and exterior panels of various kinds of equipment, and as one means for adding an action such as aluminum to the aluminum and enhancing the functionality, a photocatalytic film is formed on the surface of the aluminum base material. It is thought that it forms. However, in coating the photocatalytic film, poor adhesion, uneven film thickness, and poor appearance are major problems.

[0005] In equipment in which the heat radiating surface of a heater such as an electric panel heater is made of an aluminum exterior surface, if oil remains on the heat radiating body, dirt stains and the external appearance deteriorates. Heating efficiency deteriorates. Further, in the case of a rice cooker in which the lower surface of the lid or an inner lid detachably provided on the lower surface of the lid is formed of aluminum and the lower surface or the inner lid of the lid is heated by a lid heater or the like, heating is not performed. The purpose is to prevent the adhesion of water (condensation), so if the contact angle with the water droplet is large and the water repellency is high, the contact area between the water to be heated and the lower surface of the lid or the inner lid is small. As a result, the heating efficiency of water evaporation for preventing dew condensation deteriorates. in this way,
When an aluminum panel used as a heater is used as the heat radiating surface of the heating means, there is a concern that the heating efficiency and the appearance may be deteriorated due to the adhesion of dirt. When heating is performed by the heating means, the affinity with water is reduced, and the heating efficiency of water evaporation is deteriorated.

[0006] For example, the apparatus is equipped with cooking and boiling water equipment such as an inner surface of a pot (container) of an insulated pot or an electric jar pot, an electric hot plate, an electric grill, a plate of a grilled meat or a surface of a frying pan. The container is provided with a non-stick coating such as a fluororesin so that dirt such as rice grains and oil can be easily removed. However, fluororesin tends to peel off when used for a long time, and has a drawback that it is easily scratched because the pencil hardness is 2H to 3H, which is softer than metals and ceramics. May be impaired.

An object of the present invention is to solve the above-mentioned problems by providing an aluminum panel which can easily improve the adhesion of a coating film to an aluminum substrate, reduce unevenness in film thickness, and maintain good appearance. It is a first object of the present invention to provide an indoor device equipped with:

[0008] A second object of the present invention is to reduce the heating efficiency and the appearance by the attachment of dirt when the aluminum base used as a heater is used as the heat radiating surface of the heating means. When the aluminum base is heated by a heating means in order to prevent and evaporate the attached moisture, the heating efficiency of the moisture evaporation is to be increased.

A third object of the present invention is to provide a high-hardness aluminum panel which has high adhesion to an aluminum substrate and is resistant to scratches while ensuring non-adhesion and water repellency on the surface of the container. An object of the present invention is to provide equipped indoor equipment.

[0010]

According to a first aspect of the present invention, there is provided an indoor apparatus having an aluminum panel, wherein the base is made of aluminum and the surface of the base is made of an alumite film. And a member formed by forming a film having any one of oil decomposability, hydrophilicity, and water retention on the surface of the alumite film.

Since there are fine voids (cracks, cracks) on the surface of the alumite coating, if a coating having any one of oil-decomposability, hydrophilicity and water retention is formed on the upper surface, the voids will serve as an anchor effect. As a result, the adhesion of the coating film to the aluminum substrate is significantly improved. In addition, in the normal alumite treatment, a process of covering the voids and improving corrosion resistance is performed by performing a sealing process. However, if a film having the above function is coated without performing the sealing process, the adhesion is further improved. Since the coating has good adhesion, a thin film having a thickness of 0.5 to 2 μm can be uniformly formed on an aluminum substrate with good appearance. Therefore, when using a member in which a functional film such as oil-decomposability, hydrophilicity, and water retention property is added to an aluminum base material, the adhesion of the coating is easily improved, and the unevenness in film thickness is reduced. Can be favorably maintained.

[0012] If the coating has oil-decomposability properties, even if oil generated from the kitchen or the like reaches the exterior surface of the equipment in equipment used indoors, the oil is decomposed by the member on which the coating is formed. Oil stains are less likely to adhere. In addition, if the film has a hydrophilic property, it is possible to easily remove oil stains by wiping off a portion stained with oil with a cloth soaked with water having a higher hydrophilicity than oil, thereby improving cleanability. .
In addition, dirt that does not contain much moisture or oil such as indoor dust can be relatively easily removed, and dirt containing moisture can be easily removed by wiping, but dust or dirt containing oil can be removed. The swelling becomes so severe that it cannot be easily removed by wiping. However, if the film has oil-decomposability or hydrophilicity, the cleaning property against such oil stains can be improved.

Further, if the coating has hydrophilicity or water retention, for example, when steam is generated inside the equipment, the steam hardly adheres to the member on which the coating is formed as water droplets. The appearance is improved.

[0014] According to a second aspect of the present invention, there is provided an indoor apparatus provided with the aluminum panel, wherein in addition to the configuration of the first aspect, the coating has oil-decomposability and hydrophilicity.

If the coating has oil-decomposability and hydrophilicity, these functions act synergistically to greatly improve the cleaning property against oil stains.

[0016] The indoor equipment provided with the aluminum panel according to the third aspect of the present invention is characterized in that, in addition to the constitution of the first aspect, the coating has hydrophilicity and water retention.

If the coating has hydrophilicity and water retention, these functions act synergistically to make it more difficult for water droplets to adhere to the member on which the coating is formed, and to reduce the inner and outer surfaces of the equipment. The appearance is further improved.

The indoor equipment provided with the aluminum panel according to claim 4 of the present invention, in addition to any one of claims 1 to 3, further comprises one or more of oil decomposability, hydrophilicity and water retention. The film having the function of (1) is a photocatalytic film.

In the case where a member having the photocatalytic film formed thereon is provided on the exterior surface of an apparatus by forming a film having one or more of the functions of oil decomposability, hydrophilicity, and water retention by a photocatalytic film. In addition, oil decomposability acts upon receiving light from indoor windows such as sunlight or fluorescent light, and the effect of making oil stains less likely to adhere is ensured over time. When the member having the photocatalyst film formed thereon is provided on the interior surface of the device, the member can be exposed to light as needed to increase the hydrophilicity. Further, it is well known that it is necessary to provide fine voids (cracks, cracks) on the surface of the photocatalytic film in order to effectively maintain the photocatalytic action. You can also get.

In order to achieve the first and second objects, the indoor equipment provided with an aluminum panel according to claim 5 of the present invention comprises aluminum as a base material, and forms an alumite film on the surface of the base material. An oil-decomposable or hydrophilic film is formed on the surface of the alumite film, and a heating means for heating the substrate is provided on the back side of the substrate.

Since the surface of the alumite film has minute voids (cracks, cracks), if a film having oil-decomposability or hydrophilicity is formed on the upper surface, the voids serve as an anchor effect, and the aluminum base material is used. The adhesion of the coating to the film is remarkably improved. In addition, usually the alumite treatment is to perform the sealing process, cover the voids and improve the corrosion resistance,
If a film having the above function is coated without performing the sealing treatment, the adhesion is further improved. Since the coating has good adhesion, a thin film having a thickness of 0.5 to 2 μm can be uniformly formed on an aluminum substrate with good appearance. Therefore, it is possible to easily improve the adhesion of the coating film to the aluminum base material, reduce the thickness unevenness, and maintain a good appearance.

Further, since the heating means is provided on the back side of the aluminum base material, when the aluminum base material is used as the heat radiating surface of the heating means, when oil adheres to the heat radiating surface, Oil decomposability due to the coating acts to decompose oil stains, thereby preventing a decrease in thermal emissivity and, consequently, heating efficiency due to the oil film, and also suppressing deterioration in appearance due to stain penetration. In addition, in the case of a rice cooker, for example, in which an aluminum substrate is heated by a heating means in order to evaporate adhering moisture, in the case of a rice cooker or the like, the lower surface of the lid provided with the heating means on the back surface or the inner lid has a hydrophilic property between the moisture and water. And the contact area with the heating surface is increased, and the heating efficiency of moisture evaporation can be increased.

According to a sixth aspect of the present invention, there is provided an indoor apparatus provided with the aluminum panel, wherein the alumite film is a colored alumite film in addition to the structure of the fifth aspect.

If the alumite coating is a colored alumite coating, the heat emissivity and thus the heating efficiency are further improved, and the appearance is further improved, especially when the aluminum base material is used as the heat radiation surface of the heating means.

The indoor equipment having an aluminum panel according to claim 7 of the present invention is characterized in that, in addition to the constitution of claim 5 or 6, the oil-decomposable or hydrophilic coating is a photocatalytic film. I do.

If the oil-decomposable or hydrophilic film is formed of a photocatalytic film, the oil-decomposable and hydrophilic functions can be enhanced by receiving light from indoor windows such as sunlight or a fluorescent lamp. .

[0027] In order to achieve the first and third objects, the indoor equipment having the aluminum panel according to claim 8 of the present invention, wherein the base material is aluminum and the base material is a bottomed cylindrical container. The alumite coating is formed on the surface of the container, and a hydrophilic coating is formed on the surface of the alumite coating.

Since the surface of the alumite film has minute voids (cracks, cracks), if a hydrophilic film is formed on the upper surface, the voids serve as an anchor effect, and the adhesion of the film to the aluminum base material is improved. Sex is greatly improved. In addition, in the normal alumite treatment, a process of covering the voids and improving corrosion resistance is performed by performing a sealing process. However, if a film having the above function is coated without performing the sealing process, the adhesion is further improved. Since the coating has good adhesion, a thin film having a thickness of 0.5 to 2 μm can be uniformly formed on an aluminum substrate with good appearance. Therefore,
The adhesion of the coating to the aluminum base material can be easily improved, and the film thickness can be reduced, and the appearance can be kept good. Thus, fine irregularities on the surface of the alumite coating
An anchor structure that enhances the adhesion of the hydrophilic coating is obtained, and a high-hardness aluminum panel that is difficult to be easily peeled off and is not easily scratched can be formed on the surface of the container.

Further, since a hydrophilic coating is formed on the surface of the container, when dirt such as rice grains or oil adheres, water that is more fresh than the dirt is supplied by supplying water. For example, dirt can be easily removed by dipping in water or covering with a cloth soaked in a large amount of water. Therefore, non-adhesiveness and water repellency to the container surface are ensured instead of the conventional non-adhesive coating such as fluororesin.

[0030] In the indoor equipment provided with the aluminum panel according to the ninth aspect of the present invention, in addition to the constitution of the eighth aspect, the hydrophilic coating is formed only on the inner surface of the container.

If the hydrophilic film is formed only on the inner surface of the container, it is not necessary to coat the outer surface of the container, and the productivity can be improved.

[0032] According to the tenth aspect of the present invention, in the indoor equipment provided with the aluminum panel, in addition to the constitution of the eighth or ninth aspect, the hydrophilic film is a photocatalytic film.

If the hydrophilic film is formed by a photocatalytic film, it receives light from indoor windows such as sunlight or a fluorescent lamp,
The hydrophilic action can be enhanced.

[0034]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an indoor apparatus having an aluminum panel according to an embodiment of the present invention. Note that the indoor equipment described in this embodiment is a rice cooker. 1 and 2 showing the overall view, 1 is a rice cooker main body, 2 is an outer frame forming an outer shell of the main body 1, and the bottom of the outer frame 2 covers an opening of the rice cooker main body 1,
The bottom plate 3 which forms the bottom surface outline is fitted and fixed.
Further, inside the outer frame 2 is disposed a pot housing portion 4 serving as a bottomed cylindrical container housing portion, and a pot 5 serving as a cooking container is detachably housed in the pot housing portion 4. The pan storage wall 6 forming the side surface of the pan storage section 4 is formed integrally with the outer frame 2 forming the upper part of the pan storage section 4. Then, an inner frame 7 that forms a bottom from the lower side surface of the pan storage unit 4 is provided so as to close the bottom opening of the pan storage wall 6.

The pot 5 is manufactured by solidifying an aluminum melt in a predetermined mold and forming it into a bottomed cylindrical predetermined shape by a melt forging or a die casting method. A pot heating element 8 made of a magnetic metal such as ferritic stainless steel is joined to the outer surface of the pot 5 from the bottom to the lower side. Further, a flange portion 9 extending outward in the horizontal direction is formed at an upper portion of the pot 5. The pan 5 is removably accommodated in the inner frame 7 and the pan accommodating section 4 formed of glass fiber-containing polyethylene terephthalate resin or the like. At this time, when the pan 5 is stored in the pan storage section 4, the lower surface of the flange section 9 is placed on the upper end of the pan storage section 4, and the pan 5 is suspended inside the pan storage section 4. Has become.

Reference numeral 11 denotes a heating coil provided outside the inner frame 7 as heating means. This heating coil 11
Pot heating element 8 at the bottom and lower side of pot 5 in contact with food
Are arranged opposite to each other. Then, by supplying a predetermined high-frequency current to the heating coil 11, the pot heating element 8 placed in a magnetic field generated around the heating coil 11 self-heats and heats the pot 5, and It is configured to perform cooking and heating such as heating cooked rice such as stored rice and water, and maintaining cooked rice at a predetermined temperature. The heating method of the pot 5 is not limited to the electromagnetic induction heating method as in the present embodiment, but may be a method of heating the pot with a sheath heater or the like.
In this case, it is not necessary to join the pot heating element 8 to the outer surface of the pot 5.

The temperature of the pot 5 during cooking is detected by the inner frame 7.
The heat receiving plate 12 serving as a heat receiving portion provided on the inner surface of the inner plate, that is, the inner bottom portion, receives heat from the pot 5 and is detected by a temperature sensor 13 as a temperature detecting portion on the back side of the heat receiving plate 12. It controls the heating of the pot 5 during cooking and keeping warm. The heat receiving plate 12 facing the bottom of the pan 5 has good heat absorption and heat conductivity to quickly transfer heat to the temperature sensor 13 composed of a thermistor. Select anodized material. A gap of 0.5 to 3 mm is formed between the heat receiving plate 12 and the pan 5 so as to detect the temperature of the pan 5 in a non-contact state with the pan 5. Thereby, the heat receiving plate 12 and the temperature sensor 13 hardly protrude from the inner bottom portion or the inner side surface of the inner frame 7, and the heat receiving plate 12 and the temperature sensor 13 do not interfere with the cleaning of the inner frame 7. .

At the bottom of the inner frame 7, a temperature fuse 14 for preventing the pan 5 from overheating is provided near the temperature sensor 13. In addition, another temperature sensor 15 is provided at the upper end of the pan housing 4 so as to be in contact with the lower surface of the flange 9 of the pan 5.
Inside the main body 1, a heating board 16 on which a control circuit for the heating coil 11 is mounted, and an intake port 17 formed in the bottom plate 3 for cooling the heat-generating components of the heating board 16 are connected to a heating board.
A cooling fan 18 disposed between the power supply cable 16 and a power reel (not shown) with a power plug (not shown) is wound in a helical state. Power supply board 20 that converts to a predetermined operating voltage and outputs it
Are respectively arranged. Reference numeral 21 denotes a handle rotatably provided on both side surfaces of the outer frame 2.

Reference numeral 31 denotes a lid that covers the upper surface of the main body 1 and thus the opening of the upper surface of the pot 5. Part of the lid 31 includes a panel base 32 forming a central portion of the outer surface of the lid 31, and a panel base 32.
And a base member 35 integrally formed with a panel base cover 33 that covers the lower side of the panel base and a heat sink 34 that forms the lower side of the panel base cover 33. Among them, lid 31
Is formed by processing an aluminum plate into a predetermined shape. Also, the rear part of the base member 35,
A hinge shaft 36 provided on the upper portion of the main body 1 is pivotally supported. The lid 31 is provided to be able to open and close with respect to the main body 1 around the hinge shaft 36 as a center of rotation.

An operation panel 38 is provided on an upper surface of the base member 35, that is, a concave window portion 37 formed near the front of the upper surface of the panel base 32. This operation panel 38 is shown in FIG.
As shown in FIG. 5, an operation unit 39 relating to cooking operations such as rice cooking and heat retention, and a display unit 40 for displaying, in addition to the current time and the timer time, a process display and a display relating to cooking such as a selected rice cooking menu are provided. I have. Although not shown here, the configuration of the operation panel 38 including either the operation unit 39 or the display unit 40 may be employed. Further, an operation panel 38 may be provided on a side surface of the main body 1.

Reference numeral 41 denotes a cover member which mainly forms the outer periphery of the lid 31 so as to surround the periphery of the base member 35. The cover member 41 forms a part of the upper surface of the lid 31 and is a base member.
The cover 35 includes an outer lid 42 that forms a periphery of the outer cover 35, an outer lid cover 43 that forms a lower outer periphery of the outer lid 42, and an inner lid 44 that forms a bottom surface of the cover member 41. The cover member 41 is configured to be detachable so that when the hinge shaft 36 is set to the rear, the cover member 41 is pulled out from the front side of the base member 35, removed, pushed in, and mounted. Thus, the inner lid 44 formed by processing the aluminum plate into a predetermined shape is detachably provided below the heat sink 34.

The lid 31, the outer frame 2, the bottom plate 3 and the operation panel 38 form an exterior surface of a device, that is, a rice cooker, and are all formed of polypropylene. As shown in FIG. 3, for example, a part of the outer surface of the operation panel 38 is provided with a panel 45 formed by pressing an aluminum plate into a predetermined shape. The panel 45 is attached to a predetermined position on the operation panel 38 with an adhesive member such as a double-sided adhesive tape 46. The exterior surface member (the operation panel 38 in FIG. 3) of the device to which the panel 45 is attached may be made of a plastic other than polypropylene, or the exterior surface member may be formed only of the aluminum plate panel 45. Also the panel
45 is desirably located on the front side of the main body 1 and the lid 31.

On the back side of the heat radiating plate 34, a lid heating means 49 in the form of a cord heater is covered with an aluminum foil (not shown) and is adhered and fixed with a double-sided tape. This lid heating means 49
Heats the heat sink 34 during cooking of rice and heat insulation,
The inner lid 44 is heated by radiant heat from the surface. Note that the heat dissipation plate 34 may be exposed on the lower surface of the cover 31 without the inner cover 44, and the heat dissipation plate 34 serving as the lower surface of the cover 31 may be heated during rice cooking or heat retention. The reason why the inner lid 44 and the heat radiating plate 34 are heated is to suppress a phenomenon that moisture is condensed on the lower surface of the lid 31 due to steam or steam generated during rice cooking or heat retention. Moreover, at the time of cooking rice, the cooked food in the pan 5 is heated from the upper opening side of the pan 5 to reduce uneven heating.

Inside the base member 35, there is provided a lid temperature sensor 51 as a lid temperature detecting means for detecting the temperature of the inner lid 44. The lid temperature sensor 51 has a built-in thermistor or the like as a heat-sensitive element, detects the generation of steam from the inside of the pot 5 when cooking rice or keeping warm, and prevents condensation on the inner lid 44 when cooking rice or keeping warm. Therefore, it is used for purposes such as setting a heating temperature. Also, the lid temperature sensor 51 is
The upper surface of 44 is urged downward by a spring 52 as an elastic member.

The outer periphery of the inner lid 44 facing the upper opening of the pot 5 and serving as the lower surface of the lid 31 is provided around the body 1 when the lid 31 is closed.
A lid packing 53 for closing the gap between the lid and the cover is provided in an annular shape. The lid packing 53 is made of an elastically deformable member, and is specifically made of silicone rubber or fluorine rubber. In addition, when the pot 5 is provided inside the main body 1 as in the present embodiment, and rice is cooked or kept warm in the pot 5, the lid packing 53 is brought into contact with the upper surface of the pan 5, and the lid 31 and the main body 1 are placed. What is necessary is just to prevent vapor from leaking out from the gap between the first and the second.

On the front front side of the main body 1 on the side opposite to the hinge shaft 36, a hook button 54 serving as a lid locking portion is provided. The hook button 54 is provided so as to be rotatable about a hook shaft 55, and is constantly urged by a hook spring 56 in a direction in which the hook button 54 projects forward. Also,
On the front part of the cover member 41, a hook part 58 is formed as a projection to be engaged with the claw part 57 of the hook button. When the lid 31 is to be closed with the hinge shaft 36 as the center of rotation, the claw 57 of the hook button 54 goes over and engages the hook 58 against the elasticity of the hook spring 56. As long as the hook 54 is not operated, the engagement between the claw portion 57 of the hook button 54 and the hook portion 58 is maintained by the elasticity of the hook spring 56, and the lid 31 is held in the closed state. Also, the lid 31
When the hook button 54 is operated from the front of the main body 1 in a state in which is closed, the hook portion 57 of the hook button 54 is disengaged from the hook portion 58, and a hinge spring (not shown) provided on the hinge shaft 36 is provided.
The lid 31 is automatically opened by the elasticity of the cover 31.

The inner lid 44 is provided with a steam hole 61 for discharging steam generated from the inside of the pot 5 during cooking such as rice cooking. Further, the base member 35 facing the steam hole 61 includes:
The concave portion 62 depressed toward the pot 5 from the upper surface of the panel base 32 is
It is formed behind the operation panel 38. The recess 62 is provided with a detachable steam port 63 that passes through the base member 35 and discharges steam to the outside of the lid 31. 64
Is a steam port packing that communicates the center hole 65 of the recess 62 with the steam hole 61. The steam port packing 64 is made of an elastically deformable member, and radiates heat to seal the back side of the bottom of the recess 62 located around the center hole 65 and the back side of the inner lid 44 located around the steam hole 61. It is mounted on a plate 34. The steam port packing 64 is formed with an engagement projection 66 protruding inward. When the steam port 63 is pushed from above the concave portion 62, the flange 67 at the lower end of the steam port 63 is engaged with the engagement projection 66. 66, the steam port 63 is housed in the recess 62, and conversely, the base member
When the steam port 63 is pulled up from above the 35, the engagement between the flange portion 67 and the engagement projection 66 is released. Reference numeral 68 denotes a plurality of steam outlets formed on the upper surface of the steam port 63.

On the back surface of the operation panel 38, in addition to operation buttons for performing operations such as rice cooking and heat retention, an operation substrate on which display elements such as an LCD (liquid crystal display) and LED, and a microcomputer for control are mounted. 71 is provided. In the transparent window 72 facing the display element on the surface of the operation panel 38,
A transparent film-shaped photocatalyst film that is made of anatase-type titanium oxide (TiO ₂ ) is coated, and the photocatalyst film has a function of decomposing oil stains adhered during use. This makes it difficult for the transparent window 72 to become dirty, and suppresses the display from being difficult to see, thereby improving the practicality. The outer surface of the operation panel other than the transparent window 72 is formed by the panel 45 made of the above-described aluminum plate.

As shown in FIGS. 4 and 6, the pot 5 as a bottomed cylindrical container, which is an aluminum substrate 73, has an alumite coating 74 formed on an inner surface for accommodating cooked rice such as water and rice. And, on the surface of this anodized film 74,
A film 75 having hydrophilicity and oil decomposability is formed. In addition,
In the present embodiment, the explanation is made with reference to the pot 5 of the rice cooker, but the aluminum base material used as the container may be an electric jar pot, a kettle, various pots, etc. for the purpose of boiling water or boiling, or for grilling meat. It can be applied to all kinds of containers for various kinds of cooking such as plates and frying pans. Further, in FIG. 4, the coating 75 having hydrophilicity is formed only on the inner surface of the pot 5 that is in contact with water or the food, but the coating 75 may be formed on the inner and outer surfaces of the pot 5. However, when the coating 74 is formed only on the inner surface of the pot 5, it is not necessary to perform the coating process on the outer surface of the pot 5, and the productivity can be improved. Further, if the coating film 75 is formed of a photocatalytic film, the photocatalytic film obtains ultraviolet rays, thereby obtaining an effect of improving hydrophilicity and oil decomposition action.

An alumite film 74 is formed on an aluminum substrate 73, and a film 75 having a hydrophilic or oil-decomposing effect is formed on the surface of the alumite film 74 as shown in FIG.
As shown in the figure, the lower surface of the lid 31 of the rice cooker, the radiator plate 34 for heating the inner lid 44 is an aluminum panel, and a lid heating means 49 as a heating means is provided on the back side, and the inner lid 44 and the electric panel The present invention can also be applied to a case where an aluminum panel such as a heater is used as a heat radiator. Furthermore, anodized anodized film 74
Is formed by secondary electrolytic alumite to form a coating containing nickel oxide or copper oxide, and further colored black or the like to enhance the heat radiation efficiency of the aluminum panel. In this case, the appearance can be improved by coloring.

The lid 31, outer frame 2,
FIG. 7 shows the bottom plate 3, the operation panel 38, the heat receiving plate 12, the heat radiating plate 34 and the inner lid 44 constituting the interior surface of the rice cooker, and the aluminum base 73 constituting the bottomed cylindrical pot 5. After the alumite treatment is performed on the surface to form an alumite film 74 (aluminum oxide: Al ₂ O ₃ ) of 1 to 8 μm, a powder having photocatalytic activity such as anatase type titanium oxide (TiO ₂ ) (photocatalyst powder) ) A paint containing 76 is applied and baked at 150 to 500 ° C. to remove the organic solvent, and is a thin film having a thickness of 0.1 to 5 μm, preferably 0.1 to 2 μm, and has fine cracks (gaps and voids) on the surface. A certain photocatalytic film 77 is formed as a film 75. By using the photocatalyst film 77, it is possible to rationally obtain water retention, hydrophilicity and oil decomposability.
For example, a fine powder of ceramics such as aluminum oxide (Al ₂ O ₃ ) may be used to form a layer having fine cracks (gap or void) formed on the surface, and water may enter the crack to retain water. You may make it obtain the effect | action which raises property and hydrophilicity.

As described above, in this embodiment, the base material 73 is made of aluminum, and the alumite film 74 is formed on the surface of the base material 73. The surface of the alumite film 74 can be any of oil-decomposable, hydrophilic or water-retentive. A member provided with a coating 75 having one of them is provided on any of the interior and exterior surfaces of the device.

Since the surface of the alumite coating 74 has fine voids (cracks, cracks), the upper surface thereof has oil-decomposability,
If the coating film 75 having either hydrophilicity or water retention is formed, the void serves as an anchor effect, and the adhesion of the coating film 75 to the aluminum base material 73 is remarkably improved. Usually, in the alumite treatment, a sealing treatment is performed to cover the voids and improve the corrosion resistance. However, if the coating 75 having the above function is coated without performing the sealing treatment, the adhesion is further improved. Since the adhesion of the film 75 is good, a thin film having a thickness of 0.5 to 2 μm can be uniformly formed on the aluminum base 73 with good appearance. Therefore, when using a member in which a functional film such as oil decomposability, hydrophilicity, and water retention property is added to the aluminum base material 73, the adhesion of the film 75 is easily improved, and the film thickness unevenness is reduced. The appearance can be kept good.

If the film 75 has oil decomposability, even if the oil generated from the kitchen or the like reaches the exterior surface of the device in the equipment used indoors, the oil formed by the film 75 is It is decomposed to make it difficult for oil stains to adhere. In addition, if the coating 75 has a hydrophilic property, it can be easily removed by wiping off the oiled portion with a cloth soaked in water that is more hydrophilic than the oil, and the cleaning property is improved. I do. In addition, dirt that does not contain much moisture or oil such as indoor dust can be relatively easily removed, and dirt containing moisture can be easily removed by wiping, but dust or dirt containing oil can be removed. The swelling becomes so severe that it cannot be easily removed by wiping. However, if the coating 75 has oil decomposability or hydrophilicity, the cleaning property against such oil stains can be improved.

Further, if the coating 75 has hydrophilicity or water retention, for example, when steam is generated inside the equipment, the steam hardly adheres to the member on which the coating 75 is formed as water droplets. And the appearance is improved.

Further, like the rice cooker of this embodiment,
When the water drops on the upper surface of the rice in the pot 5 as a container during the heat retention, the rice in the dripped portion becomes excessively moist, and the lid 31 that covers the upper opening of the pan 5 is opened. In addition, there is also a problem that a large amount of water flows down along the inner surface of the lid 31 and contaminates the upper part of the main body 1, and the member (the inner lid 44) having such a coating 75 is provided in a portion directly facing the upper surface of the rice. Can be suppressed. Further, in the rice cooker, the lower surface and the inner lid 44 of the lid 31 are heated to prevent dew condensation during the heat retention, but the lower surface and the inner lid 44 of the lid 31 have hydrophilicity and water retention. By providing the member having the coating 75 formed thereon, the adhesion between the lower surface of the lid body 31 and the inner lid 44 and the water is increased, and the water is uniformly and adhered to the whole, so that heat exchange with the water by heating is good. become. Therefore, the heating efficiency for removing moisture is improved,
Power saving for the heating means can be achieved.

In such a configuration, as long as the coating 75 has oil decomposability and hydrophilicity, these functions act synergistically to greatly improve the cleaning property against oil stains. In addition, if the coating 75 has hydrophilicity and water retention, these functions act synergistically to make it more difficult for water droplets to adhere to the member on which the coating 75 is formed, and to improve the interior and exterior surfaces of the equipment. Is further improved in appearance.

As shown in FIG. 7, the photocatalyst film 77 is formed by forming a film 75 having any one or more of oil decomposability, hydrophilicity, and water retention. When the member is provided on the exterior surface of the device,
Oil decomposability acts by receiving light from indoor windows such as sunlight or fluorescent lamps, and the effect of making oil stains less likely to adhere is ensured over time. When the member on which the photocatalyst film 77 is formed is provided on the interior surface of the device, the member can be exposed to light as needed to increase the hydrophilicity. Further, it is well known that in order to effectively maintain the photocatalytic action, it is necessary to provide fine voids (cracks, cracks) on the surface of the photocatalytic film 77. You can also get

The heat radiating plate 34 and the inner lid 44, which are the aluminum panels of the present embodiment, are made of aluminum as the base material 73 and an alumite film 74 formed on the surface of the base material 73.
Form a film 75 with oil decomposability and hydrophilicity on the surface of 74,
A lid heating means 49 serving as a heating means for heating the base material 73 is provided on the back side of the base material 73.

Since there are fine voids (cracks, cracks) on the surface of the alumite coating 74, if an oil-decomposable or hydrophilic coating is formed on the upper surface, the voids will act as an anchor effect and the aluminum base The adhesion of the coating 75 to the material 73 is significantly improved. Usually, in the alumite treatment, a sealing treatment is performed to cover the voids and improve the corrosion resistance. However, if the coating 75 having the above function is coated without performing the sealing treatment, the adhesion is further improved. And, since the adhesion of the coating film 75 is good, 0.5 to 2 μm
Can be uniformly formed on the aluminum substrate 73 with good appearance. Therefore, the adhesion of the coating film 75 to the aluminum base material 73 can be easily improved, the film thickness unevenness can be reduced, and a good appearance can be maintained.

Further, since a heating means is provided on the back surface of the aluminum base material 73, when the aluminum base material 73 is used as a heat radiating surface of the heating means as in an electric panel heater, for example, If oil adheres to the radiating surface,
Oil decomposability by 75 acts to decompose oil stains, thereby preventing a decrease in thermal emissivity and, consequently, heating efficiency due to an oil film, and suppressing deterioration in appearance due to stain penetration.
Further, in order to evaporate the adhering water, the aluminum base material 73 is heated by the lid heating means 49, for example, in the case of a rice cooker or the like, the lower surface or the inner lid of the lid body 31 provided with the lid heating means 49 on the back surface. The hydrophilicity between 44 and water is increased, and the contact area with the heating surface of the lid heating means 49 is increased, so that the heating efficiency of water evaporation can be increased.

In such a configuration, the alumite coating
If the 74 is a colored alumite coating, the heat emissivity and thus the heating efficiency are further improved, and the appearance is further improved, particularly when the aluminum base 73 is used as the heat radiating surface of the heating means.

In such a configuration, if the film 75 having oil decomposability and hydrophilicity is formed by the photocatalytic film 77, the oil decomposability and the oil decomposability can be improved by receiving light from indoor windows such as sunlight or a fluorescent lamp. Each action of hydrophilicity can be enhanced.

In this embodiment, the base material 73 is made of aluminum, and the base material 73 is formed in the pot 5 which is a cylindrical container having a bottom.
The alumite coating 74 is formed on the surface of the alumite coating 74, and a coating 75 having hydrophilicity is formed on the surface of the alumite coating 74.

Since there are fine voids (cracks, cracks) on the surface of the alumite coating 74, if a hydrophilic coating 75 is formed on the upper surface, the voids serve as an anchor effect, and The adhesion of the coating 75 is significantly improved. Also, in the normal alumite treatment, a sealing treatment is performed to cover the voids and improve the corrosion resistance. However, without performing the sealing treatment, a coating film 75 having the above function is provided.
Coating further improves the adhesion. Since the adhesion of the film 75 is good, a thin film having a thickness of 0.5 to 2 μm can be uniformly formed on the aluminum base 73 with good appearance. Therefore, the coating on the aluminum substrate 73
75 can easily improve the adhesion and reduce the unevenness of the film thickness, and can maintain good appearance. As described above, the fine irregularities on the surface of the alumite coating 74 have an anchor structure that enhances the adhesion of the coating 75 having hydrophilicity.
Can be formed on the surface.

The surface of the pot 5 has a hydrophilic coating.
75 is formed.If dirt such as rice grains or oil adheres, supply water with a higher degree of freshness than the dirt, for example, soak the water or use a cloth with a large amount of water. For example, the dirt can be easily removed. Therefore, in place of the conventional non-adhesive coating such as fluororesin, non-adhesiveness and water repellency to the surface of the pot 5 are secured. In addition, when the pot 5 is heated and boiled in the pot 5, the heat exchange property with water is improved, and the effect that the heating efficiency is improved is also obtained.

In such a configuration, if the hydrophilic film 75 is formed only on the inner surface of the pot 5, it is not necessary to coat the outer surface of the pot 5 and the productivity can be improved. .

In such a configuration, if the hydrophilic film 75 is formed of the photocatalytic film 77, the hydrophilic function can be enhanced by receiving light from indoor windows such as sunlight or fluorescent lamps. it can.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made.

[0070]

According to the present invention, there is provided an indoor apparatus having an aluminum panel according to the first aspect of the present invention, wherein the base material is aluminum, an alumite film is formed on the surface of the base material, and the surface of the alumite film is oil-decomposable and hydrophilic. A member in which a coating having either one of water resistance and water retention property is formed is provided on an arbitrary exterior surface of the device, and the adhesion of the coating to an aluminum base material is easily improved, and the film thickness unevenness. And the appearance can be kept good.

The indoor equipment having the aluminum panel according to claim 2 of the present invention is characterized in that, in addition to the constitution of claim 1, the coating has oil-decomposability and hydrophilicity. Furthermore, the functions of oil-decomposability and hydrophilicity act synergistically to greatly improve cleanability against oil stains.

The indoor equipment having the aluminum panel according to claim 3 of the present invention is characterized in that, in addition to the constitution of claim 1, the coating has hydrophilicity and water retention, and in this case, In addition, the functions of hydrophilicity and water retentivity act synergistically to make it more difficult for water droplets to adhere, further improving the appearance of the interior and exterior surfaces of the device.

The indoor equipment provided with the aluminum panel according to the fourth aspect of the present invention is characterized in that, in addition to any one of the first to third aspects, any one or more of oil decomposability, hydrophilicity and water retentivity are provided. The film having the effect of (1) is characterized in that it is a photocatalytic film, and in this case, furthermore, when a member on which the photocatalytic film is formed is provided on the exterior surface of the device, the effect that oil stains are less likely to adhere is reduced with time. Is secured. When the member having the photocatalyst film formed thereon is provided on the interior surface of the device, the member can be exposed to light as needed to increase the hydrophilicity. Further, good water retention can be obtained by the fine voids provided on the surface of the photocatalytic film.

In the indoor equipment having the aluminum panel according to the fifth aspect of the present invention, the base material is made of aluminum, an alumite film is formed on the surface of the base material, and the surface of the alumite film has oil decomposability and hydrophilicity. Forming a coating having, provided a heating means for heating the substrate on the back side of the substrate, to easily improve the adhesion of the coating to the aluminum substrate, and to reduce the thickness unevenness The appearance can be kept good. In addition, when the aluminum base material used as the heater is used as the heat radiating surface of the heating means, it is necessary to prevent deterioration of the heating efficiency and appearance due to the adhesion of dirt, and to evaporate the attached moisture. When the aluminum base is heated by the heating means, the heating efficiency of water evaporation can be increased.

In the indoor equipment provided with the aluminum panel according to claim 6 of the present invention, in addition to the constitution of claim 5, the alumite film is a colored alumite film,
The heating efficiency is further improved, and the appearance is further improved.

The indoor equipment having the aluminum panel according to claim 7 of the present invention is characterized in that, in addition to the constitution of claim 5 or 6, the film having oil decomposability or hydrophilicity is a photocatalytic film. In this case, it is possible to further enhance the oil-decomposability and the hydrophilicity by receiving light from indoor windows such as sunlight or a fluorescent lamp. Further, good water retention can be obtained by the fine voids provided on the surface of the photocatalytic film.

In the indoor equipment provided with the aluminum panel according to claim 8 of the present invention, the base material is made of aluminum, the base material is formed in a bottomed cylindrical container, and an alumite film is formed on the surface of the container. A film having a hydrophilic property is formed on the surface of the alumite film, and the adhesion of the film to the aluminum base material can be easily improved, the film thickness can be reduced, and the appearance can be kept good. In addition, it is possible to provide an indoor device provided with a high-hardness aluminum panel which has high adhesion to an aluminum base material while ensuring non-adhesiveness and water repellency on the surface of the container and is hard to be damaged.

The indoor equipment provided with the aluminum panel according to the ninth aspect of the present invention has the structure according to the eighth aspect, wherein the coating having hydrophilicity is formed only on the inner surface of the container. Further, it is not necessary to perform the coating process on the outer surface of the container, and the productivity can be improved.

The indoor equipment having the aluminum panel according to claim 10 of the present invention is characterized in that, in addition to the constitution of claim 8 or 9, the hydrophilic film is a photocatalytic film, and in this case, In addition, it can receive hydrophilic light such as sunlight or fluorescent light from indoor windows to enhance the hydrophilicity. Further, good water retention can be obtained by the fine voids provided on the surface of the photocatalytic film.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rice cooker showing one embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a partial cross-sectional view around the panel.

FIG. 4 is a schematic sectional view of the pot.

FIG. 5 is a partial sectional view of the heating plate and the lid heating means.

FIG. 6 is a partial sectional view of the aluminum panel.

FIG. 7 is a partial cross-sectional view of an aluminum panel showing another modification of the above.

[Explanation of symbols]

 5 Pot (container) 49 Lid heating means (heating means) 73 Base material 74 Alumite coating 75 Coating 77 Photocatalytic film

Continued on the front page F-term (reference) 4F100 AA19B AA21 AB10A AR00C BA03 BA07 BA10A BA10C CA30C DA01 GB48 GB51 HB00 HB00B JB05C JC00C JL10B JL11 JM02C 4G069 AA03 AA08 BA01A BA01B BA04A02B02B02B02B02A

Claims (10)

[Claims] 1. A member comprising aluminum as a base material, forming an alumite coating on the surface of the base material, and forming a coating having any one of oil-decomposability, hydrophilicity and water retention on the surface of the alumite coating. An indoor device equipped with an aluminum panel, wherein the device is provided on an arbitrary interior / exterior surface of the device. 2. The indoor equipment having an aluminum panel according to claim 1, wherein the coating has oil-decomposability and hydrophilicity. 3. The indoor equipment having an aluminum panel according to claim 1, wherein the coating has hydrophilicity and water retention. 4. The film according to claim 1, wherein the film having one or more of the functions of oil-decomposability, hydrophilicity, and water retention is a photocatalytic film. Indoor equipment with aluminum panels. 5. An aluminum base material, an alumite film is formed on the surface of the base material, an oil-decomposable or hydrophilic film is formed on the surface of the alumite film, and the base material is formed on the back side of the base material. Indoor equipment provided with an aluminum panel, wherein a heating means for heating a material is provided. 6. An indoor device equipped with an aluminum panel according to claim 5, wherein said alumite coating is a colored alumite coating. 7. The film having oil-decomposability or hydrophilicity,
An indoor device comprising the aluminum panel according to claim 5, wherein the indoor device is a photocatalytic film. 8. A base material is made of aluminum, the base material is formed in a bottomed cylindrical container, an alumite film is formed on the surface of the container, and a hydrophilic film is formed on the surface of the alumite film. Indoor equipment comprising an aluminum panel. 9. The indoor equipment having an aluminum panel according to claim 8, wherein the coating having hydrophilicity is formed only on the inner surface of the container. 10. The indoor equipment provided with an aluminum panel according to claim 8, wherein the hydrophilic film is a photocatalytic film.