JP7276846B2 - Gas stove - Google Patents

Description

The present invention relates to gas stoves.

Conventionally, a stove has been proposed that emits infrared rays forward in conjunction with necessary operations such as ignition and extinguishing, reflects them to the user in front, and propagates them to a receiver located above to operate a ventilation fan. (See Patent Document 1, for example).

Japanese Patent Application Laid-Open No. 2002-147806

In the above-described stove, it is difficult to link the stove with the ventilation fan when the stove is operated in a state where there is no object to be reflected, such as by remote control via a smartphone or the like. In order to solve this problem, for example, there is a method of emitting infrared rays upward from the top plate, but in this method, the infrared light emitting elements are exposed, so not only does the aesthetic appearance deteriorate, but also the stove and grill There was a possibility of malfunction due to the influence of heat from. Moreover, there is a possibility that the light-emitting element may be splashed with broth or the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a gas stove that can operate or stop a ventilation fan in conjunction with a predetermined operation even when there is no person in front of it.

The gas stove of claim 1 comprises a housing, a grill box provided at the center of the housing in the left-right direction and having an upwardly extending grill exhaust pipe at the rear, a top plate having an exhaust port at the rear, and a predetermined and a light emitting part that emits infrared rays in conjunction with an operation, and the grille exhaust pipe is positioned near the center of the exhaust port in a state where the top plate is fixed on the housing. wherein the infrared rays emitted from the light-emitting portion are transmitted to a receiving portion of a ventilation fan located above the gas stove, thereby activating or stopping the ventilation fan, wherein the light-emitting portion comprises the At least one of the left and right side walls inside the rear part of the housing is provided so that the direction of emission of the infrared rays is directed toward the grille exhaust pipe, and the light emitting unit is provided on the grille exhaust pipe side in the housing. A reflecting member is provided that reflects the infrared rays emitted from the grille exhaust pipe at least upward through gaps formed between the left and right side portions of the grille exhaust pipe and the left and right inner edge portions of the exhaust port. characterized by

The reflecting member of the gas stove according to claim 2 may have a multifaceted structure having a plurality of reflecting surfaces for diffusing and reflecting the infrared rays upward and in the front-rear direction, or a curved surface structure having a curved surface.

According to the gas stove of claim 1, since the infrared rays emitted from the light emitting part are reflected upward by the reflector, the infrared rays are reliably propagated to the receiving part above the gas stove even when there is no person in front, You can operate the ventilation fan. In addition, since the light-emitting part is provided inside the rear part of the housing, it is possible to prevent spoilage of the appearance and splashing of broth or the like. In addition, since the light emitting part is provided on at least one of the left and right side walls inside the rear part of the housing, the influence of heat from the grill chamber and the grill exhaust pipe can be reduced. Therefore, it is possible to prevent failures and malfunctions caused by the heat of the light emitting unit.

According to the gas stove of claim 2, depending on the ventilation fan, the infrared receiving part may be on the front side or on the back side, and it is not necessarily unified. In the present application, the reflecting plate has a multifaceted structure or a curved surface structure, and diffuses and reflects infrared rays upward and in the front-rear direction. be able to.

2 is a front view of the stove 1 and the ventilator 200. FIG. 1 is a perspective view of a stove 1; FIG. 2 is a plan view of the stove 1; FIG. FIG. 3 is a partially enlarged perspective view of the inside of the rear part of the housing 2 as seen obliquely from the front right. 3 is a partially enlarged perspective view of the inside of the rear part of the housing 2 as seen obliquely from the front left. FIG. FIG. 6 is a partially enlarged view of a W region in FIG. 5; 4 is a partially enlarged view of the surroundings of the exhaust port 7 in the top plate 3. FIG.

Embodiments of the present invention will be described below. Unless there is a specific description, the structure of the apparatus described below is merely an example of explanation and not intended to be limiting. The drawings are used to explain technical features that can be employed by the present invention.

The configuration of the stove 1 and the ventilator 200 will be described with reference to FIG. The stove 1 is a built-in stove, and is installed by dropping it into an opening (not shown) provided on the upper surface of a kitchen cabinet 100 from above. A ventilator 200 is installed above the stove 1 .

The ventilation device 200 includes a ventilation hood 201 and a ventilation fan 202 . The ventilation fan 202 is provided inside the ventilation hood 201 . An operation unit 203 is provided on the front surface of the ventilation hood 201 . A receiver 205 is provided near the operation unit 203 . The receiving unit 205 can receive infrared rays emitted upward after being reflected by reflecting members 91 and 92 described later from a pair of light emitting units 601 and 602 (see FIGS. 3 and 4) provided in the stove 1. . When the receiver 205 receives the infrared rays, the ventilation device 200 controls the ventilation fan 202 to operate or stop.

The configuration of the stove 1 will be described with reference to FIGS. 2 and 3. FIG. As shown in FIG. 2, the stove 1 includes a housing 2 and a top plate 3. As shown in FIG. The housing 2 has a substantially rectangular parallelepiped shape with an open top. The top plate 3 is fixed to the upper part of the housing 2 . A right burner 4 is provided on the upper surface of the top plate 3 on the right front, a left burner 5 is provided on the left front, and a rear burner 6 is provided on the center rear side. A substantially rectangular concave portion 3A (see FIG. 3) elongated in the horizontal direction in a plan view is provided in the rear portion of the top plate 3. As shown in FIG. The concave portion 3A has a concave cross-sectional shape lower than the upper surface of the top plate 3. As shown in FIG. The bottom surface of the concave portion 3A is provided with a substantially rectangular exhaust port 7 elongated in the horizontal direction in a plan view. The exhaust port 7 discharges the combustion exhaust flowing from the grill chamber 30 (see FIG. 4) installed in the housing 2 to the outside. An exhaust cover 8 is installed in the recess 3A. The exhaust cover 8 has a plurality of slits and covers the exhaust port 7 from above.

A grill door 10 is provided substantially in the center of the front surface of the housing 2 . The grill door 10 can be pulled forward to open and close a grill opening (not shown) on the front side of the grill storage 30 . Two operation knobs 11 and 12 are provided side by side on the right side of the grill door 10, and two operation knobs 13 and 14 are provided on the left side of the grill door 10 side by side. The operation knob 11 is operated to ignite, extinguish, and adjust the heating power of the right burner 4 . The operation knob 12 is operated to ignite, extinguish, and adjust the heating power of a grill burner (not shown) provided in the grill chamber 30 . The operation knob 13 is operated to ignite and extinguish the back burner 6 and to adjust the heating power. The operation knob 14 is operated to ignite, extinguish, and adjust the heating power of the left burner 5 .

As shown in FIG. 4 , the housing 2 has a left wall portion 21 , a right wall portion 22 and a rear wall portion 23 . Receiving portions 211 , 221 , and 231 are provided at upper end portions of the left wall portion 21 , the right wall portion 22 , and the rear wall portion 23 , respectively. The receiving portions 211 , 221 , 231 protrude outwardly and substantially horizontally from the upper end portions of the left wall portion 21 , the right wall portion 22 , and the rear wall portion 23 in a flange shape. The outer peripheral portion of the top plate 3 is placed on the upper surface of each of the receiving portions 211, 221, and 231 from above and fixed by screwing.

A grill storage 30 is provided in the central portion of the housing 2 . A grill exhaust pipe 31 is provided at the rear of the grill storage 30 . The grill exhaust pipe 31 is formed in a substantially rectangular tubular shape extending upward from the rear portion of the grill warehouse 30 . A grill exhaust port 32 is provided at the upper end of the grill exhaust pipe 31 . The grille exhaust port 32 is formed in a substantially rectangular shape elongated in the horizontal direction in a plan view. As shown in FIG. 3 , the grill exhaust port 32 is arranged directly below the exhaust port 7 of the top plate 3 . When the exhaust port 7 is viewed from above, the grille exhaust port 32 is arranged near the center inside the exhaust port 7 . As a result, the combustion exhaust in the grill chamber 30 flows through the grill exhaust pipe 31 and is discharged to the outside from the exhaust port 7 via the grill exhaust port 32 .

As shown in FIGS. 3 to 5, a light emitting unit 601 is attached to the inner upper portion of the rear portion of the left wall portion 21 inside the rear portion of the housing 2 . A light emitting unit 602 is attached to the upper inner surface of the rear portion of the right wall portion 22 . The light-emitting units 601 and 602 are provided with infrared light-emitting elements 81 and 82, which will be described later, and emit infrared rays toward the grille exhaust pipe 31 from the left and right sides, respectively. A reflecting member 91 (see FIG. 5 ) is fixed near the left side of the grille exhaust pipe 31 , and a reflecting member 92 (see FIG. 4 ) is fixed near the right side of the grille exhaust pipe 31 . In a state where the top plate 3 is fixed to the top of the housing 2 , the reflecting member 91 directs the infrared rays emitted from the light emitting unit 601 to the left side of the grille exhaust pipe 31 and the left edge of the exhaust port 7 of the top plate 3 . The light is reflected at least upward through a gap P1 (see FIGS. 3 and 7) formed between the light beam and the light beam. The reflecting member 92 reflects the infrared rays emitted from the light emitting unit 602 through a gap P2 formed between the right side portion of the grille exhaust pipe 31 and the right edge portion of the exhaust port 7 of the top plate 3 (see FIGS. 3 and 7). ) at least upwards.

The structure of the light emitting units 601 and 602 will be described with reference to FIG. Since the light emitting units 601 and 602 have bilaterally symmetrical structures, the structure of the light emitting unit 601 will be described in this embodiment. The light emitting unit 601 has a mounting member 71 and an infrared light emitting element 81 .

The mounting member 71 includes a fixed portion 711, a hanging portion 712, a horizontal portion 713, and a support portion 714, and is formed by bending a metal plate. The fixing portion 701 is formed in a substantially rectangular shape elongated in the horizontal direction in plan view, is positioned at the rear portion of the upper surface of the receiving portion 211 of the left wall portion 21, and is fixed by screwing. A fixing hole 716 is provided in the left rear corner of the fixing portion 711 . The hanging portion 712 hangs down from the left end portion of the fixed portion 711 and is formed in a substantially rectangular shape when viewed from the left side. A circular opening (not shown) is provided in the central portion of the hanging portion 712 . The horizontal portion 713 extends rightward and substantially horizontally from the lower end portion of the drooping portion 712 and is formed in a substantially rectangular shape elongated in the horizontal direction in a plan view. The support portion 714 protrudes vertically upward from the tip (left end) of the horizontal portion 713 and has a substantially rectangular shape when viewed from the left side. A circular opening 715 is provided in the central portion of the support portion 714 . The opening of the drooping portion 712 and the opening 715 of the support portion 714 are positioned on the same axis extending in the left-right direction.

The infrared light emitting element 81 is supported by being inserted into the opening of the drooping portion 712 and the opening 715 of the support portion 714 with respect to the mounting member 71 so that the direction of transmission of infrared rays is directed toward the grille exhaust pipe 31 side. .

Although not described in detail, the light emitting unit 602 also includes the mounting member 72 and the infrared light emitting element 82 (see FIG. 3), similarly to the light emitting unit 601 . The mounting member 72 is bilaterally symmetrical with the mounting member 71 of the light emitting unit 601 .

The infrared light emitting elements 81 and 82 emit infrared rays corresponding to ignition or extinguishing operations of the operation knobs 11 to 14 based on control signals from the control unit (not shown) of the stove 1 . When the receiver 205 receives the infrared rays, the ventilator 200 operates or stops the ventilation fan 202 based on the received infrared rays.

The shape of the reflecting members 91 and 92 will be described with reference to FIG. Since the reflecting members 91 and 92 are also symmetrical to each other, the shape of the reflecting member 91 will be described in this embodiment. The reflecting member 91 includes a fixing portion 911 , a supporting portion 912 and a reflecting portion 913 . The fixing portion 911 is formed in a substantially rectangular shape elongated in the vertical direction when viewed from the front, and is fixed by a screw 90 at an upper portion of the inner surface of the rear wall portion 23 and at a substantially intermediate position sandwiched between the grille exhaust pipe 31 and the left wall portion 21 . be.

The support portion 912 extends from the right end portion of the fixed portion 911 toward the grille exhaust pipe 31 while bending slightly forward, and is formed in a substantially rectangular shape elongated in the vertical direction when viewed from the front. A top plate fixing portion 916 is provided at the upper end portion of the support portion 912 . The top plate fixing portion 916 is formed in a plate shape and protrudes forward and substantially horizontally. The top plate fixing portion 916 is provided with a fixing hole 917 penetrating in the vertical direction. The top plate 3 is placed on the upper surface of the top plate fixing portion 916 , and screws (not shown) are fastened to the fixing holes 917 through fixing holes (not shown) provided in the top plate 3 . As a result, the top plate 3 is fixed to the top plate fixing portion 916 . Therefore, the stove 1 can add the function of fixing the top plate 3 to the housing 2 without increasing the number of parts. An upper portion of the right end portion of the support portion 912 is provided with an inclined portion 912A that inclines toward the grille exhaust pipe 31 from below to above.

The reflecting portion 913 bends and extends forward from the inclined portion 912A. The reflecting portion 913 has a first reflecting surface 914 and a second reflecting surface 915 . The first reflecting surface 914 slopes forward downward from the slope 912A and slopes obliquely upward from the left end side to the right end side. The second reflecting surface 915 is slightly bent forward from the front end of the first reflecting surface 914 and extends forward at a shallower angle than the first reflecting surface 914 .

Reflection paths of infrared rays emitted from the light emitting units 601 and 602 will be described with reference to FIGS. 4 to 7. FIG. As shown in FIG. 6, in the light emitting unit 601, the infrared light emitting element 81 emits infrared rays toward the grille exhaust pipe 31 side. Infrared rays are incident on the first reflecting surface 914 and the second reflecting surface 915 of the reflecting portion 913 of the reflecting member 91 . The first reflecting surface 914 and the second reflecting surface 915 reflect the infrared rays while diffusing them upward and in the front-rear direction. Since the first reflecting surface 914 is inclined more forward than the second reflecting surface 915 , the infrared rays are reflected more forward than the second reflecting surface 915 . The infrared rays reflected by the first reflecting surface 914 and the second reflecting surface 915 pass through a gap P1 (see FIGS. 7) and propagates to the receiver 205 located above the top plate 3 while diffusing in the front-rear direction.

On the other hand, since the light emitting unit 602 also has a symmetrical structure with respect to the light emitting unit 601 , the infrared rays are incident on the reflecting surface of the reflecting portion 923 (see FIG. 4) of the reflecting member 92 . The infrared rays reflected by the reflective surface pass upward through a gap P2 (see FIGS. 3 and 7) formed between the right end of the grille exhaust pipe 31 and the right edge of the exhaust port 7 of the top plate 3. , spreads toward the front side of the stove 1 and obliquely upward while propagating to the receiving section 205 located above the top plate 3 . As a result, the direction of transmission of infrared rays from the light emitting units 601 and 602 is directed toward the receiving section 205, so that the receiving section 205 can more reliably receive the infrared rays transmitted from both the left and right sides.

As described above, the stove 1 of the above embodiment includes the housing 2, the grill chamber 30 provided near the center in the left-right direction of the housing 2 and having the grill exhaust pipe 31 extending upward at the rear, and the exhaust It has a top plate 3 having a mouth 7 at the rear, and light emitting units 601 and 602 that emit infrared rays in conjunction with a predetermined operation. The stove 1 is configured such that the grill exhaust pipe 31 is positioned near the center of the exhaust port 7 with the top plate 3 fixed on the housing 2 . The light-emitting units 601 and 602 are provided on the left wall portion 21 side and the right wall portion 22 side inside the rear portion of the housing 2 so that the direction of emission of infrared rays is directed toward the grille exhaust pipe 31 side. Furthermore, reflecting members 91 and 92 are provided on the side of the grille exhaust pipe 31 in the housing 2 . The reflecting members 91 and 92 reflect the infrared rays emitted from the light emitting units 601 and 602 through the gaps P1 and P2 formed between the left and right side portions of the grille exhaust pipe 31 and the left and right inner edge portions of the exhaust port 7. reflected at least upwards through the As a result, even when there is no person in front of the stove 1, the infrared rays can be reliably propagated to the receiver 205 above the stove 1, and the ventilation fan 202 can be operated. In addition, since the light emitting units 601 and 602 are provided inside the rear part of the housing 2, it is possible to prevent spoiling the appearance and splashing broth or the like. In addition, since the light emitting units 601 and 602 are provided on the left wall portion 21 side and the right wall portion 22 side inside the rear portion of the housing 2, the influence of heat from the grill chamber 30 and the grill exhaust pipe 31 can be reduced. Therefore, failures and malfunctions due to heat of the light emitting units 601 and 602 can be prevented.

In the above description, the light emitting units 601 and 602 are examples of the "light emitting section" of the present invention.

The present invention is not limited to the above embodiments, and various modifications are possible. The stove 1 is a built-in stove, but it may be a table stove.

The light emitting units 601 and 602 are provided on both left and right sides inside the rear portion of the housing 2, but only one of them may be provided. Also, the number of light emitting units may be two or more.

The reflecting portion 913 of the reflecting member 91 has a two-sided structure of a first reflecting surface 914 and a second reflecting surface 915, but may have a multi-faceted structure having one surface or two or more surfaces. Also, instead of the multifaceted structure, a curved surface that diffuses and reflects infrared rays upward and in the front-rear direction may be used.

The stove 1 may be capable of communicating with an external terminal such as a smartphone, a dedicated terminal, or a remote control. In that case, the stove 1 can be remotely controlled by an external terminal. As a result, even when the stove 1 is operated in a state in which there is no reflection target in front of it, the ventilation fan 202 can be interlocked.

Reference Signs List 1 stove 2 housing 3 top plate 7 exhaust port 30 grill chamber 31 grill exhaust pipe 32 grill exhaust port 81, 82 infrared light emitting element 91, 92 reflecting member 202 ventilation fan 205 receiving part 601, 602 light emitting unit

Claims (2)

A housing, a grill chamber provided at the center of the housing in the left-right direction and having a grille exhaust pipe extending upward at the rear, a top plate having an exhaust port at the rear, and infrared rays emitted in conjunction with a predetermined operation. a light emitting part that emits light, and the grill exhaust pipe is positioned near the center of the exhaust port in a state where the top plate is fixed on the housing, wherein In a gas stove in which the infrared rays emitted from the light emitting part propagate to a receiving part of the ventilation fan located above the gas stove to activate or stop the ventilation fan,
The light emitting unit is provided on at least one side of left and right side walls inside the rear part of the housing so that the direction of emission of the infrared rays is directed toward the grille exhaust pipe,
In the casing, on the side of the grille exhaust pipe, the infrared rays emitted from the light-emitting portion are transmitted through gaps formed between the left and right side portions of the grille exhaust pipe and the left and right inner edge portions of the exhaust port. A gas stove, comprising a reflecting member that reflects at least upward through the gas stove. 2. The gas stove according to claim 1, wherein the reflecting member has a multifaceted structure having a plurality of reflecting surfaces for diffusing and reflecting the infrared rays upward and in the front-rear direction, or a curved surface structure having a curved surface. .

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