JP2018123973A - Gas cooking stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas cooking stove which can effectively utilize radiant heat in heating of a cooking container to be heated by a gas cooking stove by suppressing the radiant heat from flames formed in a gas burner being reflected on a surface of a top plate and being radiated toward the upper part of the surroundings of the gas burner.SOLUTION: A gas cooking stove includes a gas cooking stove body and a gas burner 31, and it has a structure in which a flame hole part 33 formed on an outer periphery of a gas burner 31 protrudes upward of a top plate 02 via an opening for burner provided at the top plate 02 on an upper surface of the gas cooking stove body. An upper surface of the top plate 02 includes a retroreflective surface 120 including retroreflective characteristics. The retroreflective surface 120 on the upper surface of the top plate 02 is formed by a retroreflective coated material coated on an upper surface of a base material 110 for top plate.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a gas stove, and more particularly to a technique for improving the thermal efficiency of a gas stove.

  The gas stove has a structure including a gas burner disposed so that a flame hole portion formed on the outer periphery of the gas stove protrudes above the top plate through an opening for the burner provided in the top plate constituting the upper surface thereof. There is something.

  As such a gas stove, Patent Document 1 discloses that the top surface of the gas stove body is covered with a glass top plate, and that the flame hole portion protrudes above the top plate from the opening provided in the top plate. A gas stove with an installed gas burner is disclosed.

JP, 2006-027300, A

  In the case of a gas stove having a structure in which the flame hole portion is positioned above the upper surface of the top plate as in the gas stove of Patent Document 1 described above, when the gas burner is ignited for cooking, the flame formed in the gas burner The radiant heat from is reflected by the surface (upper surface) of the top plate and radiated toward the front and rear of the gas burner and the upper side in the left-right direction, that is, the upper part around the gas burner.

  Of the radiant heat radiated upwards around the gas burner, the radiant heat not directed to the cooking container is efficiently used to increase the temperature of the cooking container to be heated by the gas stove (that is, heating the cooking container). It is not preferable from the viewpoint of improving the thermal efficiency as a gas stove.

  For example, if the radiant heat reflected from the surface of the top plate goes upward in front of the gas burner, the temperature near the position where the user is present will rise, and the radiant heat will increase the temperature of the cooking container to be heated by the gas stove. If the reflected radiant heat is not used efficiently, and the reflected radiant heat is directed upward at the rear, generally the temperature near the position where the wall of the kitchen or the like is present rises, and the temperature of the cooking container increases. Since it is not used efficiently, the radiant heat is not used efficiently, and there is room for improvement from the viewpoint of improving the thermal efficiency of the gas stove.

  The present invention solves the above-mentioned problem, and suppresses that the radiant heat from the flame formed in the gas burner is reflected on the surface of the top plate and is radiated upwards around the gas burner. It aims at providing the gas stove which can be efficiently utilized for the heating of the cooking container which should be heated with a gas stove.

In order to achieve the above object, the gas stove of the present invention comprises:
A gas stove comprising a gas stove body and a gas burner, and having a structure in which a flame hole formed on the outer periphery of the gas burner protrudes above the top plate through a burner opening provided in a top plate on the top surface of the gas stove body Because
The top surface of the top plate is provided with a retroreflective surface having retroreflective properties.

  In the gas stove of the present invention, it is preferable that the retroreflective surface on the upper surface of the top plate is formed by a retroreflective coating applied to the upper surface of the top plate base material constituting the top plate.

  Moreover, in the gas stove of this invention, it is preferable that the said base material for top plates is a glass plate or a metal plate.

Since the top surface of the top plate of the gas stove of the present invention has a retroreflective surface having retroreflective properties, it is reflected from the surface of the top plate out of the radiant heat from the flame formed in the gas burner and heated by the gas stove. It becomes possible to increase the proportion reflected towards the cooking container to be done.
The retroreflective surface may be formed on the entire upper surface of the top plate, or may be formed in a predetermined region including a region corresponding to a main part of radiant heat from the flame.

  That is, according to the present invention, of the radiant heat from the flame formed in the gas burner, the proportion reflected upwards around the gas burner (that is, the radiant heat is not directed to the cooking container to be heated by the gas stove. The ratio of the radiant heat) can be reduced to realize a gas stove that can efficiently use the radiant heat from the flame formed in the gas burner for heating the cooking vessel.

  In addition, when the retroreflective surface on the upper surface of the top plate is formed by a retroreflective coating applied to the upper surface of the top plate substrate, the upper surface of the top plate is applied by applying the retroreflective coating. In addition, the retroreflective surface can be easily formed, and the present invention can be further effectively realized.

  In addition, by using a glass plate or a metal plate as the top plate base material, a glass plate or metal plate generally used as a top plate in a conventional gas stove may be used as the top plate base material. This is preferable because the gas stove of the present invention can be easily provided without requiring a complicated manufacturing process.

It is a top view which shows the gas stove concerning one Embodiment of this invention. It is a side view which shows the gas burner periphery which comprises the conventional gas stove. It is a side view which shows the gas burner periphery which comprises the gas stove concerning one Embodiment of this invention. It is a figure explaining the reflection in the upper surface of the top plate of the gas stove concerning one Embodiment of this invention. It is a principal part enlarged view explaining the reflection in the upper surface of the top plate of the gas stove concerning one Embodiment of this invention. It is a comparison figure of ambient temperature when the gas burner of the conventional gas stove and the gas stove concerning one Embodiment of this invention is burned.

  Hereinafter, examples of the present invention will be shown and features thereof will be described in detail.

[Embodiment]
FIG. 1 is a view showing a gas stove (gas table stove) A according to an embodiment of the present invention. The gas stove (gas table stove) A of this embodiment has a cylindrical structure (outer diameter of 66 mm in this embodiment) with the upper surface of the gas stove main body 01 covered with a top plate 02 as shown in FIG. Two gas burners, a gas burner 31 and a right gas burner 32, are provided.

  The left and right gas burners 31 and 32 have their flame holes 33 protruding above the top plate 02 through burner openings (not shown) formed in the top plate 02. In addition, the flame hole part 33 is formed in the outer periphery of the annular | circular shaped structure part which comprises each gas burner 31 and 32. As shown in FIG.

  In the gas stove (gas table stove) A provided with this temperature detection device, a point-extinguishing operation of the left gas burner 31 is performed on the front surface 01a of the gas stove main body 01, which is located in front of the left gas burner 31 and the right gas burner 32. A left point fire extinguishing operation unit 41 and a right point fire extinguishing operation unit 42 for performing a point fire extinguishing operation of the right gas burner 32 are provided.

  Further, in the gas stove body 01, the points of the left gas burner 31 and the right gas burner 32 are opened and closed by opening and closing a gas valve (not shown) and starting and stopping of an igniter (not shown) based on the operation of the left point fire extinguishing operation unit 41 and the right point fire extinguishing operation unit 42 Fire extinguishing is controlled, and the opening of a gas amount adjusting valve (not shown) is adjusted by driving a stepping motor (not shown) to adjust the amount of gas supplied to the left gas burner 31 and right gas burner 32 to thereby adjust the left gas burner 31 and the right gas burner 32. A control unit (not shown) for controlling the thermal power is provided.

  The gas stove A includes a gas grill part (not shown). A grill handle 44 for opening and closing a door (not shown) of the gas grill part on the front surface 01a of the gas stove main body 10 and a fire extinguishing operation of the gas grill part. A grill point fire extinguishing operation unit 43 is provided, and exhaust gas accompanying cooking in the gas grill unit is discharged from a grill exhaust port 45 provided behind the top plate 02. A detailed description of the gas grill is omitted.

  Further, five virtues 50 for placing cooking containers 60 heated by the left gas burner 31 and the right gas burner 32 are arranged around the respective flame hole portions 33 of the left gas burner 31 and the right gas burner 32 on the top plate 02. (FIGS. 1 and 3).

  The virtues 50 include a plurality of virtues claw 51 for placing the cooking utensil 60 and a ring-shaped virtuosity ring 52 arranged radially around the flame hole portion 33. Are integrally connected to an annular five-virtual ring 52.

  Although the gas stove A includes two gas burners, a left gas burner 31 and a right gas burner 32, both the left gas burner 31 and the right gas burner 32 have the same form as the embodiment of the present invention. The embodiment of the left gas burner 31 will be mainly described in detail, and the detailed description of the right gas burner 32 may be omitted in some cases.

  The gas stove A includes a temperature detecting device 72 that detects the temperature of the bottom surface of the cooking container 60 by contacting the bottom surface of the cooking container 60 such as a pan placed on the virtues 50, and constitutes the temperature detecting device 72. A moving side support cylinder (not shown) and a fixed side support member (not shown) are provided so as to penetrate the center of the left gas burner 31 from below to above (FIGS. 1 and 3).

  And the movement side support cylinder of the temperature detection device 72 moves up and down in conjunction with the placement of the cooking container 60 on the virtues 50 so that the temperature of the bottom surface of the cooking container 60 can be reliably detected. It is configured.

<Characteristic configuration>
Next, a characteristic configuration of the gas stove A according to this embodiment will be described.

  In the gas stove A according to this embodiment, the upper surface of the top plate 02 includes a retroreflective surface 120 having retroreflective properties.

  Retroreflection refers to a reflection phenomenon in which incident light returns to the incident direction again by a special optical reflection mechanism. In general, when the light is reflected by a flat surface such as glass or metal, the incident angle and the reflection angle are the same. However, retroreflection is different from this and refers to reflection in which the received light is directly reflected to the light source.

  As a material constituting the retroreflective surface 120 having such a retroreflective property, for example, a material including a large number of spherical reflectors (glass beads) 101 made of a minute high refractive glass acting as a lens is used ( (See FIGS. 4 and 5).

  More specifically, each of the above-described spherical reflectors (glass beads) 101 is a perfect sphere and acts as a kind of convex lens. As shown in FIGS. 4 and 5, the incident light passes through the glass body (glass bead 101) and is refracted to focus on one point, but is reflected at the bottom of the sphere and again passes through the glass body (glass bead 101). Passed to the original light source direction.

  By using a retroreflecting material that performs such a function, a reflection phenomenon occurs in which incident light returns to the incident direction again, and the top plate 02 provided with the above-described retroreflecting material repels the received light as it is to the light source. An optically special reflection mechanism is provided.

  In the gas stove A of the present embodiment, a large number of glass beads 101 made of minute high-refractive glass acting as a lens are uniformly arranged in the transparent paint 102 so as to have a certain effect as a reflecting material (specifically Is applied to the upper surface of the glass plate as the top plate substrate 110 to apply the retroreflective coating 100. The top plate 02 is configured by forming layers.

  In this embodiment, the retroreflective surface 120 is formed on the entire top surface of the top plate 02. However, the retroreflective surface 120 may be partially formed in a predetermined region including a region where the main part of the radiant heat from the flame is applied.

  Thus, the top plate 02 having the retroreflective surface 120 having the retroreflective property is formed on the upper surface by applying the retroreflective coating material to the top plate substrate 110 to form the layer of the retroreflective coating 100. It can be easily configured.

  In the present embodiment, the top plate substrate 110 is a glass plate, but the top plate substrate 110 may be a metal plate.

  Incidentally, by using a glass plate or a metal plate as the top plate substrate 110, a glass plate or a metal plate generally used as a top plate in a conventional gas stove is used as a top plate substrate. This is convenient.

  In the gas stove A of the present embodiment, since the top surface of the top plate 02 is a retroreflective surface 120 having retroreflective characteristics, the radiant heat from the flame 81 formed on the left gas burner 31 and the right gas burner 32 is generated by the top plate 02. The ratio of the light reflected from the retroreflecting surface 120 on the surface and returning in the direction of the flame 81 is increased. Therefore, the ratio of radiation toward the upper part of the periphery of the left gas burner 31 and the right gas burner 32 (upward in the front-rear and left-right directions) It is possible to efficiently use radiant heat for heating (temperature increase) of the cooking container 60 to be heated by the gas stove A.

  In the case of the conventional gas stove, as shown in FIG. 2, the radiant heat from the flame 81 formed on the left gas burner 31 and the right gas burner 32 is reflected on the surface of the top plate 02, and the left gas burner 31 and the right gas burner 32 There is little radiant heat that is radiated upward in the front-rear direction and is used for heating (temperature increase) of the cooking container 60. In FIG. 2, the radiant heat is indicated by a one-dot chain line.

  On the other hand, in the gas stove A according to the present embodiment, as shown in FIG. 3, the radiant heat from the flame 81 formed in the left gas burner 31 and the right gas burner 32 recurs on the retroreflecting surface 120 on the surface of the top plate 02. The rate of reflection and radiation toward the flame 81 increases. In FIG. 3, the radiant heat is indicated by a one-dot chain line.

  And since the cooking container 60 exists in the vicinity of the flame 81, the retroreflected radiant heat is irradiated toward the cooking container 60. FIG. As a result, the radiant heat from the flame 81 formed in the left gas burner 31 and the right gas burner 32 is reflected by the retroreflecting surface 120 on the surface of the top plate 02 and above the left gas burner 31 and the right gas burner 32 (front and rear, left and right). It is possible to efficiently use the radiant heat to increase the temperature of the cooking vessel 60 to be heated by the gas stove by suppressing the radiation toward the upper direction).

  In FIG. 6, the gas stove A according to the present embodiment, in which the retroreflective surface 120 is formed by applying the retroreflective coating on the upper surface of the top plate 02, and the retroreflective coating is applied on the upper surface of the top plate 02. The result of having measured the rise characteristic of the ambient temperature around the left gas burner 31 about the conventional gas stove which is not provided with the retroreflection surface 120 is shown.

  In FIG. 6, the broken line shows the rise characteristic of the ambient temperature around the left gas burner 31 in the case of the gas stove A of the present embodiment, and the solid line shows the rise characteristic of the ambient temperature around the left gas burner 31 in the case of the conventional gas stove. Indicates.

  It should be noted that both the solid line and the broken line in FIG. 6 are positions that are not directly subjected to radiant heat from the flame 81 formed in the left gas burner 31 and are 100 mm forward from the front end of the left gas burner 31 and 100 mm above the top surface of the top plate 02. The measured ambient temperature is shown.

  As shown in FIG. 6, in the case of the gas stove A according to this embodiment provided with the retroreflective surface 120 on the top surface of the top plate 02, compared with the case of the conventional gas stove that does not have the retroreflective surface on the top surface of the top plate 02. Thus, it can be seen that the ambient temperature is low, that is, the radiant heat reflected toward the upper portion of the left gas burner 31 (upward in the front-rear and left-right directions) is reduced.

  The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

A gas stove (gas table stove)
01 Gas stove body 01a Front face of gas stove body 02 Top plate 31 Left gas burner 32 Right gas burner 33 Flame hole part 41 Left point fire extinguishing part 42 Right point fire extinguishing part 43 Grill point extinguishing part 44 Grill handle 45 Grill exhaust outlet 50 Gotoku 51 Gotoku Claw 52 Gotoku ring 60 Cooking container 72 Temperature detector 81 Flame 101 Reflective material (glass beads)
100 Retroreflective coating 102 Transparent paint 110 Top plate base material 120 Retroreflective surface

Claims (3)

A gas stove comprising a gas stove body and a gas burner, and having a structure in which a flame hole formed on the outer periphery of the gas burner protrudes above the top plate through a burner opening provided in a top plate on the top surface of the gas stove body Because
A gas stove, wherein the top plate has a retroreflective surface having retroreflective properties.   The gas stove according to claim 1, wherein the retroreflective surface on the upper surface of the top plate is formed of a retroreflective coating applied to the upper surface of a top plate base material constituting the top plate. .   The gas stove according to claim 2, wherein the top plate base material is a glass plate or a metal plate.

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