JP3143682B1 - Solar cooker - Google Patents

Abstract

To provide a solar cooker that can supply heat energy stably, can easily disassemble and assemble each part, and does not require a space for transportation and storage. SOLUTION: In a solar cooker 1 which converts sunlight condensed on a parabolic reflective surface 3 supported by a support base 15 into heat energy and cooks on a plate 14 provided above the reflective surface 3. One end of each of a plurality of cross-sectionally curved rod-shaped members is provided on the disk-shaped base in such a manner as to be rotatable by a hinge so as to be rotatable on the disk to form a skeleton portion of the reflection surface 3. The fan-shaped reflecting sheet 7 is detachably attached and covered with the reflecting sheet 7 to form the reflecting surface 3.
And the skeleton of the reflection surface 3, the reflection sheet 7, the plate 14, and the support 15 are provided detachably. Further, the azimuth and elevation angle of the reflecting surface 3 may be adjustable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cooker that increases the energy density of sunlight condensed on a reflecting surface outdoors in the sea or mountains and converts the sunlight into heat energy for cooking.

[0002]

2. Description of the Related Art Conventionally, as a heat energy source for cooking in the so-called outdoors such as the sea and mountains, instead of fossil fuel, firewood, charcoal, etc., sunlight is collected and converted into energy for use. Solar cookers are used. This solar cooker has no destruction of the natural environment and its source is infinite as long as the sun is out,
It has been researched and developed in various ways and commercialized.

[Problems to be solved by the invention]

[0003] However, in order to obtain heat energy that can be used for cooking, it is necessary to stably supply a fixed amount of heat converted from sunlight, so that the light collecting portion of the appliance tends to be large. Was. In addition, in order to stably supply a certain amount of thermal energy, it is necessary to move the condensing part of the solar cooker in accordance with the position of the moving sun, etc. However, along with these, the instruments themselves have become larger and more complicated, and they have not been able to take up space and be easily transported or stored. In addition, the surface of the reflection surface, which is the light condensing part, is a delicate surface. If it is damaged, solar heat cannot be condensed smoothly, and there is a fear that stable thermal energy cannot be supplied. It had to be done and it was not convenient.

[0004] The present invention has been made in view of the above points, and can provide a stable supply of heat energy, can easily disassemble and assemble each part, does not require a place for transportation and storage, and the direction of the sun. In order to solve the above-mentioned problem, there is provided an apparatus provided with means for easily following a reflecting surface.

[0005]

According to a first aspect of the present invention, sunlight condensed on a parabolic reflecting surface supported by a support table is converted into heat energy, and the sunlight is converted to heat energy above the reflecting surface. In a solar cooker that cooks on a provided cooking table, one end of each of a plurality of bar-shaped bodies having a curved cross section is rotatably provided on a disk-shaped base by a hinge in a radial manner to form a skeleton of the reflection surface. Then, a plurality of fan-shaped reflecting sheets are detachably attached to the respective rods, and the reflecting sheets are formed by covering the reflecting sheets, and the skeleton portion of the reflecting surface, the reflecting sheet, the cooking table, and the support table are respectively attached and detached. The solar cooker was provided freely.

According to a second aspect of the present invention, sunlight condensed on a parabolic reflective surface supported by a support table is converted into heat energy, and cooked on a cooking table provided above the reflective surface. In a solar cooker, one end of each of a plurality of cross-sectionally curved rods is rotatably provided on a disk-shaped base by a hinge so as to be rotatable, respectively, on the disk to form a skeleton portion of the reflection surface. A plurality of fan-shaped reflecting sheets are detachably attached to the reflecting sheet to form the reflecting surface, and the azimuth adjustment base supported by the support base is horizontally rotatable. The azimuth adjustment base and the horizontal pin The elevation adjustment base pivotally supported by the above means that the elevation adjustment base is rotatable around the horizontal pin with respect to the azimuth adjustment base by a worm and a worm gear, and the base of the reflection surface is fixed to the elevation adjustment base. Then on Skeleton of the reflective surface, the reflective sheet, worktop, and the support base and respectively detachably provided with solar cookers.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention. The solar cooker 1 of this embodiment is roughly divided into a reflecting surface portion for receiving and reflecting and condensing sunlight, an azimuth adjustment portion for following the reflecting surface portion in the direction of the sun, and a cooking table on which a cooking object is placed. And a support base for supporting these reflecting surface portions and the azimuth adjusting portion.
All of these parts are provided so that they can be easily assembled and disassembled.

As shown in FIG. 1 and FIG.
It is composed of a disk-shaped base 2, a reflecting surface 3, and a radially provided rod 4 serving as a skeleton of the reflecting surface 3, and the rod 4 has a strip shape that is wider than its thickness. 3 to 5
As shown in the figure, a column 2a is suspended from the lower surface of the base 2, and the lower part of the column 2a is threaded. The lower portion of the cylindrical portion 2a is screwed into a screw hole formed in the azimuth adjustment unit to fix the base 2. The lower ends of a plurality of rods 4 described later are attached to the upper surface of the base 2 by hinges 5 so as to be rotatable about 90 degrees in the vertical direction. In this case, a total of 12 rods 4 are provided. These rods 4
Each has a slightly curved downward center, and the reflection surface 3 formed is a paraboloid. Further, a plurality of female surface fasteners 6a are attached at equal intervals from the respective tips of the rods 4 toward the root, and on the reflection surface formed by the rods 4, the male surface fasteners 6b are provided on the back surface. A reflection sheet 7 made of an aluminum wheel to which is adhered with the male and female hook-and-loop fasteners 6a and 6b, and a circular reflection sheet 7 'is similarly attached to the upper surface of the base 2 without gaps with the male and female hook-and-loop fasteners 6a and 6b. I have.

As shown in FIG. 5, the azimuth adjustment section comprises a section for adjusting the horizontal azimuth of the formed reflecting surface 3 and a section for adjusting the vertical elevation angle. In the part for adjusting the azimuth, two rectangular plate members 8a and 8b are overlapped in parallel with a gap therebetween, and the upper plate member 8a and the lower plate member 8b
Are fixed between the four corners by passing the support 8c therebetween, and the two shaft portions 9a and 10a are suspended in parallel from above the upper plate 8a so as to penetrate the upper plate 8a so as to penetrate the lower plate 8a. 8b (not shown) so as to be freely rotatable.
Numeral 0a fixes the azimuth adjusting gears 9b and 10b meshing with each other on the lower plate 8b. A disk 9c is attached to the upper end of one shaft 9a protruding above the plate body 8a, and a handle 9 is provided at an appropriate position on the edge of the upper surface of the disk 9c.
The azimuth adjustment handle 9 is formed by erected d. The upper end of the other shaft portion 10a protruding above the plate 8a is connected to and integrated with the lower surface of the substantially rectangular parallelepiped azimuth adjustment base 11, whereby the azimuth adjustment base 11 is connected to the other shaft. It is freely rotatable about the portion 10a in a lateral direction within a range not in contact with one of the shaft portions 9a. The front end of the azimuth adjustment base 11 is pivotally connected to the rear end of the elevation adjustment base 12 that supports the reflection surface 3.

The elevation angle of the reflecting surface 3 is adjusted at a connection between the azimuth adjustment base 11 and the elevation adjustment base 12. Here, a screw hole (not shown) is formed in advance on an end face of the elevation angle adjustment base 12 opposite to the end connected to the azimuth adjustment base 11, and the cylindrical portion 2a of the base 2 is screwed into the screw hole. Then, the reflection surface 3 is attached to the elevation adjustment base 12. The front end of the azimuth adjustment base 11 and the rear end of the azimuth adjustment base 12, which are the connecting parts of the azimuth adjustment base 11 and the elevation adjustment base 12, are oriented in the lateral direction by a joint pin 12 a fixed to the elevation adjustment base 12. The adjustment base 11 is pivotally supported. The connecting portion is composed of an upper and lower shaft 1 supported by a worm upper retainer 11a fixed to the upper surface of the azimuth adjustment base 11 and a worm lower retainer 11b fixed to the lower surface.
The upper and lower worms 11d provided on the upper and lower worm gears 1c and the upper and lower worm gears 12b are engaged with the upper and lower worms 11d, provided on one side of the rear end of the elevation adjustment base 12, and fixed to the joint pins 12a. . At the lower end of the vertical shaft 11c, a substantially disc-shaped elevation angle adjustment grip 11e for adjusting the elevation angle is provided. By turning the elevation angle adjustment grip 11e, the vertical worm 11d is rotated and the vertical worm gear 12b is rotated. Is rotated to adjust the elevation angle of the reflection surface 3.

As shown in FIG. 1 and FIG. 2, a cooking table portion on which a product to be cooked is placed has a cooking table support bar 13a which protrudes laterally from both sides of an elevation angle adjusting base 12 of an azimuth adjusting unit. , 13a and the two countertop support bars 13a
At the front end of the work piece, the countertops 13c, 13c are projected upward beyond the reflecting surface 3 at right angles by connecting hardware 13b, and a rectangular wire mesh plate is positioned at a position above the reflecting surface 3 to be the focal point of the reflecting surface. 14 is installed, and a countertop support bar 13d is provided laterally from both sides of the plate 14, respectively.
13d is projected, and these worktable support bars 13d, 1d
The ends 3d are connected to each other at substantially right angles by the two stove support bars 13c, 13c protruding into the hollow and the connecting hardware 13b. In addition, the worktop support bars 13a, 13c, 13d are connected to each other by the connection hardware 13b.
Since the workbench support bars 13a, 13c and 13d are each held between the connecting hardware 13b by screws, they can be freely rotated by loosening the screws. For example, in a state where the plate 14 is inclined with respect to the reflection surface 3, Further, the plate 14 can always be fixed in a horizontal state. As shown in FIG. 5, screw holes 12c are formed in both side surfaces of the elevation angle adjusting base 12, and a screw portion (not shown) at one end of each worktable support bar 13a is screwed into each of the screw holes 12c. Since they are put on and fixed, these worktops are removable.

A support 15 for supporting the azimuth adjustment base 11
Is formed by inserting a short pipe into a right angle pipe or a T-shaped pipe to form a substantially box shape. The plate 8b below the azimuth adjustment section is provided on the upper surface of the two pipes passed over the upper surface. The azimuth adjustment base 11 is fixed to the support 15 by being mounted and fastened with bolts and nuts (not shown). Further, as described above, since the support base 15 is formed by combining the pipes, the support base 15 is lightweight and easy to carry.

Next, a method of cooking using the solar cooker 1 will be described. First, the solar cooker 1 placed on the support 15 is placed on a relatively flat ground. And the handle 9d of the direction adjusting handle 9 of the direction adjusting base 11
Is turned horizontally to adjust the azimuth of the reflecting surface 3 to the direction of the sun light, and when the azimuth with the sun can be adjusted, the elevation angle adjusting grip 11e is then turned to rotate the worm gear 12b for up and down, thereby turning the reflecting surface 3 Adjust the angle of elevation to the optimal angle. Also, the connection fitting 13b is adjusted to bring the plate 14 into a horizontal state. As a result, the direction of the reflecting surface 3 becomes the direction in which sunlight can be collected most, and pots to be boiled and fish skewer on a skewer are arranged on the plate 14 serving as a cooking table. In this state, the water in the pot boils in a short time in the summer season when the sunlight is strong, the fish on the skewer is burned, and anything can be cooked. In addition to the movement of the sun, the azimuth adjustment handle 9 and the elevation adjustment grip 11e of the azimuth adjustment base 11 are turned to adjust the azimuth and the like, and the optimal reflection for condensing sunlight according to the position of the moving sun. Since the azimuth and elevation angle of the surface 3 can be set and a stable amount of heat can be supplied, cooking can be performed with confidence.

In the above-described embodiment, the azimuth adjustment unit is specifically described as a device that can follow the movement of the sun. However, a device that can follow the movement of the sun has this configuration. It is not limited. Further, aluminum wheels are used as the reflection sheet 7 of the reflection surface 3, and these reflection sheets are detachably attached by the male and female surface fasteners 6a and 6b. However, the reflection sheet 7 is not limited to the aluminum wheel. The method of detachably providing the fasteners is not limited to the hook-and-loop fasteners 6a and 6b. Further, an adjusting unit for supporting the reflecting surface and the cooking table unit is provided on the supporting table 15 formed of a pipe. However, the supporting table 15 for installing the adjusting unit for the direction is limited to this configuration. is not. The azimuth adjustment handle 9 of the azimuth adjustment unit and the elevation adjustment grip 1 of the elevation adjustment base.
Although 1e is manual, it may be configured to be driven to rotate by electric power or the like.

[0015]

According to the first and second aspects of the present invention,
Since one end of each of the plurality of rods is provided so as to be openable and closable by a hinge around the disk, thereby forming a skeleton portion of the reflection surface,
When unnecessary, the rod can be closed from the open state, so that it does not take up space when moving or storing, which is convenient. Further, since the reflection sheet forming the reflection surface is detachable, when the reflection surface is not formed, the reflection sheet can be easily removed, and it is convenient to store the reflection surface without damaging it. Since the skeleton of the reflecting surface, the reflecting sheet, and the cooking table are detachably provided to each other, it is convenient to carry and easy to assemble. Furthermore, according to the second aspect of the present invention, the reflecting surface can be easily followed in the direction of the sun moving on the reflecting surface, and has a configuration in which the reflecting surface can be adjusted. It can obtain heat energy.

[Brief description of the drawings]

FIG. 1 is a perspective view of a solar cooker according to an embodiment of the present invention.

FIG. 2 is a perspective view of the solar cooker according to the embodiment of the present invention, with an aluminum wheel removed.

FIG. 3 is an explanatory view showing a state in which a rod serving as a skeleton forming a parabolic reflective surface is rotatably attached by a hinge in the solar cooker according to the embodiment of the present invention.

FIG. 4 is an explanatory view of the solar cooker according to the embodiment of the present invention in a state where all rods attached to a disk serving as a base are closed.

FIG. 5 is an explanatory diagram of a direction adjustment unit in the solar cooker according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Solar cooker 2 Disc-shaped base 3 Reflective surface 4 Rod 5 Hinge 7 Reflective sheet 7 'Reflective sheet 11 Azimuth adjustment base 11d Up and down worm 12 Elevation angle adjustment base 12a Joint pin 12b Up and down worm gear 14 Plate 15 Support

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-101350 (JP, A) JP-A-11-325612 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24J 2/02

Claims (2)

(57) [Claims] 1. A solar cooker for converting sunlight condensed on a parabolic reflective surface supported by a support base into heat energy and cooking on a cooking table provided above the reflective surface, comprising: One end of each rod-shaped body having a curved cross section is radially provided on the disk-shaped base by a hinge so as to be freely rotatable on the disk to form a skeleton of the reflection surface, and a plurality of fan-shaped reflections are formed on each rod-shaped body. A solar cooker, characterized in that a sheet is detachably attached to cover the reflective sheet to form the reflective surface, and a skeleton of the reflective surface, a reflective sheet, a cooking table, and a support table are detachably provided, respectively. 2. A solar cooker for converting sunlight condensed on a parabolic reflective surface supported by a support base into heat energy and cooking on a cooking table provided above the reflective surface, comprising: One end of each rod-shaped body having a curved cross section is radially provided on the disk-shaped base by a hinge so as to be freely rotatable on the disk to form a skeleton of the reflection surface, and a plurality of fan-shaped reflections are formed on each rod-shaped body. The sheet is detachably attached to cover the reflective sheet to form the reflective surface, the azimuth adjustment base supported by the support base is horizontally rotatable, and the elevation angle pivotally supported by the azimuth adjustment base and a horizontal pin The adjustment base is a worm and a worm gear, the elevation adjustment base is rotatable around the horizontal pin with respect to the azimuth adjustment base, and the base of the reflection surface is fixed to the elevation adjustment base, and the reflection surface is Skeleton, anti A solar cooker characterized in that a shooting sheet, a cooking table, and a support table are detachably provided.