JPH0721337B2 - Gas stove - Google Patents

Description

TECHNICAL FIELD The present invention relates to a gas stove used for household use.

<Prior Art and Problems to be Solved by the Invention> Conventionally, as a gas stove, as shown in JP-A-61-140723, Gotoku for placing an object to be heated such as a top plate and a pot, and broth, etc. There is a soup saucer that receives the soup, either separately or integrally.

However, in the above gas stove, the temperature of the top plate and the soup saucer becomes high due to the heat generated by the combustion of the burner. Therefore, the spilled broth on the top plate or the soup saucer burns onto the top plate or soup saucer and sticks to it, making it difficult to clean.

Therefore, as shown in FIG. 9, a partition bottom plate, a partition wall, a top plate, and a soup saucer which are arranged above the mixing tube in the stove body (100) and formed with a through hole for inserting the burner head support portion. And a flat ventilation passage (103) for flowing air along the top plate and the soup saucer, and a fan (104) for supplying air to the ventilation passage (103).
1) and a gas stove in which the soup saucer (102) is cooled have been proposed (see Japanese Utility Model Application No. 62-169247).

However, in the above gas stove, the fan (104)
Since the wind generated by the air is sent to the combustion section (106) of the burner (105), the combustion may become unstable. Also, the wind is
Since the gas is also sent to the intake mixing section (107) for mixing air, the mixing ratio of air becomes unstable, and combustion may become unstable.

This invention has been made in view of the above problems,
It is an object of the present invention to provide a gas stove capable of stabilizing combustion while preventing overheating of a top plate and a soup saucer.

<Means for Solving the Problem> A gas stove according to the present invention for achieving the above object is a gas stove in which a juice saucer having a through hole for inserting a burner is arranged on a top plate of the stove body. Inside, is provided with a cooling air passage for applying air to the top plate and the soup saucer, and a ventilation means for flowing outside air into the cooling air passage,
It is characterized in that the gas combustion section and the intake section for mixing and supplying the primary air to the mixing tube are arranged in a state of being separated from the cooling air passage by the partition bottom plate and the partition wall.

Further, the operation unit having a control circuit for controlling the combustion of gas and the intake side of the cooling air passage may be provided on the front side of the partition wall of the stove body.

Furthermore, a gas plug for connecting a gas pipe and a power cord attachment portion are provided on the rear side of the partition wall of the stove body, and an extension portion is provided to cover at least the gas plug and the power cord attachment portion. The extended portion may be provided with an exhaust hole of the cooling air passage toward the rear.

Further, a depth adjusting member for adjusting the depth of the stove body may be provided at a rear portion of the stove body while covering the upper side of the gas pipe and the power cord.

<Operation> According to the gas stove configured as described above, a flat cooling air passage that allows air to flow along the top plate and the juice pan, and a ventilation means that causes outside air to flow through the cooling air passage are provided inside the stove body. Therefore, it is possible to sufficiently cool the top plate and the soup saucer by applying the outside air that has been made to flow in the cooling air passage by the ventilation means to the top plate and the soup saucer as a flow having a high flow rate to improve the heat transfer coefficient. Further, since the gas combustion section and the intake section for mixing and supplying the primary air to the mixing pipe are arranged in a state of being separated from the cooling air passage, the adverse effect of the wind on the gas combustion section and the intake section is prevented. it can.

In addition, if the operation part that incorporates the control circuit that controls the combustion of gas and the intake side of the cooling air passage are provided in front of the partition wall of the stove body, the temperature will still be high immediately after intake. The top plate on the front side of the stove body can be cooled by the outside air that is not kept, and heat radiation from the top plate on the front side to the operating unit can be suppressed to prevent the operating unit from becoming hot.

Furthermore, a gas plug and a power cord attachment portion are provided on the rear side of the partition wall of the stove body, and an extension portion is provided to cover at least the gas plug and the power cord attachment portion. In the case where the cooling air passage exhaust hole is provided rearward, the extension portion can prevent dropping of broth or the like onto the gas plug and the power cord attachment portion, and the extension portion exhaust gas can be prevented. The hot air can be discharged rearward from the hole to prevent the hot air from hitting the gas plug and the power cord attachment portion.

In addition, if a depth adjustment member is provided at the rear of the stove body to cover the gas pipe and power cord above and to adjust the depth of the stove body, the depth should be With the adjusting member, the depth of the stove main body can be made to match the depth of the gas stove stand, and at the same time, it is possible to prevent the liquid such as broth from falling onto the gas pipe and the power cord.

<Examples> Detailed description will be given below with reference to the accompanying drawings showing examples.

FIG. 1 is a side elevational sectional view showing an embodiment of a gas stove according to the present invention, and FIG. 3 is a partially cutaway front view showing a stove body (1) having an opening (16) in a top plate (11). A soup saucer (3) placed on the top plate (11) covering the opening (16) and having a through hole (31) for inserting the burner, and housed in the stove body (1), A burner device (2) exposing the burner head (25) through the through hole (31), a cooling air passage (5) provided inside the stove body (1), and a fan (6) as ventilation means. Has as a main part.

The stove body (1) is a hollow box formed by a top plate (11), a front plate (12), a rear plate (13), side plates (14) and a bottom plate (15). The opening (16) is the top plate (11).
Is a through hole provided in the. On the front surface of the front plate (12), there is provided an operation section (71) including a touch switch for performing ignition operation, fire extinguishing operation, heat power adjustment, etc. of the burner device (2). A control circuit (72) for controlling the ignition and the like based on the operation of the operation unit (71) is provided on the back surface of the (). The bottom plate (15) is provided with an intake hole (17) through which the fan (6) sucks outside air.

At the rear of the stove body (1), power is supplied to the gas plug (21) for connecting the gas pipe, the control circuit (72), etc., which is connected to the valve unit (22) while penetrating the back plate (13). A power supply cord attaching portion (19) (see FIG. 5) for supply is provided. Further, an eave-shaped extending portion (9) is provided at a rear portion of the stove body (1) in a state of covering the gas plug (21) and the power cord attaching portion (19). On the upper surface of the extended portion (9), the exhaust holes (1) of the cooling air passage (5) directed rearward and obliquely upward by cutting and raising are provided.
8) is provided.

The burner device (2) is supplied with gas from a plug (21) for connecting a gas pipe that penetrates the rear plate (13), and controls the gas after adjusting the flow rate of the gas with a control valve unit (22). It is ejected from the nozzle (221) of the valve unit (22) to the mixing pipe (23), and at this time, the primary air is taken in from the intake port (233) as an intake section and mixed in the mixing pipe (23), and thereafter. , The burner head support portion (24) and the burner head (25) and is guided to a pointed portion (26), and is ejected from the pointed portion (26) to burn. The part where the gas burns around the tip (26) is
The gas combustion section (8).

The burner head support section (24) includes an inner cylinder (241) and an outer cylinder (24).
2), and a gas passage (27) is formed between the inner cylinder (241) and the outer cylinder (242). The outer cylinder (242) is taller than the inner cylinder (241) and
The upper part of 2) forms a sloped part (243) which is open and expanded.

As shown in FIG. 4, the burner head (25) has a through hole (252) and an upper portion of the burner head main body (251).
A dish-shaped portion (253) that opens obliquely upward is formed, and a plurality of ridges (2) are formed on the lower surface side of the dish-shaped portion (253).
54) are erected radially. In the pointed portion (26), the lower surface of the protrusion (254) is the burner head support portion (24).
It is formed between the ridges (254) in a state of being in contact with the inclined part (243), and the pointed part (26) communicates with the gas passage (27). The through hole (252) and the inner cylinder (241) of the burner head support portion (24) communicate with each other to form a secondary air passage (A). On the upper surface of the dish-shaped portion (253), a plurality of supporting protrusions (256) are provided upright in a radial manner.

The mixing pipe (23) is formed integrally with the burner supporting part (24), and at its end (231), the gas supplied from the nozzle (221) inserted into the supply port (232) is sucked in. The primary air supplied from the intake port (233) as a part is mixed and guided to the gas passage (27). The end (231) is provided with a damper (234) for adjusting the opening area of the intake port (233).

In FIG. 4, (28) is a temperature sensor for transmitting a detection signal to the control circuit (72).

The burner head (25), as shown in FIG. 1, supports a Gotoku (4) for placing an object to be heated. This Gotoku (4)
Is a plurality of radially arranged claws (41) and the claws (41)
Convex disk-shaped cover (42) with the base end (41a) of the
Consists of. The cover portion (42) includes a burner head (25).
Is substantially supported over the burner head (25) via a cylindrical guide portion (43) fixed to the lower surface of the cover portion (42). A notch (431) having a shape that can match the supporting projection (256) of the burner head (25) is provided in the lower portion of the guide part (43), and by the above matching, the cover part (42). Is positioned on the burner head (25) with its rattling being substantially restricted. The tip (41b) of the claw (41) is supported by the juice saucer (3). On the side of the guide part (43),
An exhaust hole (432) of the secondary air passage (A) is provided.

The cooling air passage (5) is formed by a top plate (11), a soup saucer (3), a partition bottom plate (51) and partition partitions (52) (53) (54) as shown in FIGS. 5 and 6. Has been done. The fan (6) is arranged in an inclined state near the burner on the right side of the front part of the cooling air passage (5). In this way, the reason why the burner on the right side is closer is that the burner on the right side is a high-calorie burner that has stronger firepower than the burner on the left side, and the right side part of the top plate (11) tends to get hot, so this part is effective. This is for the purpose of effective cooling. Openings (57) communicating with the exhaust holes (18) are formed on both sides of the partition wall (54). The partition wall (54) separates the control valve unit (22) and the end portion (231) of the mixing pipe (23) from the cooling air passage (5). Each partition wall (52) (53)
Each of the (54) forms a peripheral edge portion (52a) (53a) (54a) which is in surface contact with the top plate (11).

The partition bottom plate (51) is provided with a through hole (55) for inserting the burner head support portion (24), and around the through hole (55),
A convex edge (56) is formed. The convex edge (56) prevents the wind in the cooling air passage (5) from hitting the gas combustion section (8) by making surface contact with the lower surface of the concave section (33) of the juice receiving tray (3). There is. Further, the partition bottom plate (51) is provided with a wind direction control plate (58) in the vicinity of the fan (6) for allowing the outside air sent by the fan (6) into the cooling air passage (5) to flow left and right in a well-balanced manner. It is installed upright. Further, a communication hole (59) for guiding the air in the cooling air passage (5) to the secondary air hole (A) is provided at a substantially central portion of the partition bottom plate (51).

As described above, according to the configuration of this embodiment, the cooling air passage (5) for applying air to the top plate (11) and the soup saucer (3) is formed,
Since the cooling air passage (5) is provided with the fan (6) for sending the outside air, the outside air flowed through the cooling air passage (5) by the fan (6) is the top plate (11) and the juice saucer (3). And the top plate (11) and the soup saucer (3) are cooled. Further, since the gas combustion unit (8) and the intake port (233) are arranged outside the cooling air passage (5), combustion of the gas is unstable in the gas combustion unit (8) due to the combustion of the gas flame. Becomes the intake port (233)
It is possible to prevent the combustion from becoming unstable due to fluctuations in the degree of air mixing due to fluctuations in the amount of air taken in from the
Combustion can be stabilized.

In addition, an operation unit (71) having a control circuit (72) installed therein is arranged at the front of the stove body (1), and the intake hole (17) of the cooling air passage (5) is connected to the stove body (1). Since it is provided on the front side, the outside air that is not yet hot just after intake can flow to the cooling air passage (5) on the front side of the stove body (1), and the front side of the stove body (1) It is possible to accelerate the cooling of the top plate (11) and prevent the operating portion (71) on the front side of the stove body (1) from becoming hot. Therefore, there is no risk of burns or the like even if the operating section (71) is touched by the hand during cooking, safety can be secured, and reliability of operation of the control circuit (72) can be secured.

Furthermore, a gas plug (21) is provided at the rear of the stove body (1).
And the power cord attachment portion (19) and the extension portion (9) covering the gas plug (21) and the power cord attachment portion (19) are provided. ), It is possible to prevent broth and the like from falling onto the gas plug (21) and the power cord attachment portion (19). Moreover, since the exhaust hole (18) of the cooling air passage (5) is provided in the extended portion (9) toward the rear, the hot air discharged from the exhaust hole (18) is supplied to the gas plug (21) and the power source. It can be prevented from hitting the cord attachment part (19). Therefore, the gas plug (21) and the power cord attachment (1
The deterioration of 9) can be prevented. In addition, the exhaust hole (18),
Since it is provided on the upper surface of the extending portion (9) so as to be directed obliquely upward and rearward by cutting and raising, it is possible to prevent the infusion of broth or the like from the exhaust hole (18).

FIG. 7 shows a state in which the depth adjusting member (20) used when the stove body (1) is installed on a gas stove stand such as a system kitchen is attached to the rear part of the stove body (1). As shown in FIG. 8, the depth adjusting member (20) is composed of a top plate (20a) and a side plate (20b) supporting the top plate (20a), and the height of the top plate (20a) is The height of the stove body (1) is set to be substantially equal to that of the stove body (1). The top plate (20a) covers the gas pipe (91) and the power cord (92). Furthermore, a notch (93) is provided at one end of the top plate (20a), and a cover material (94) made of rubber or resin is disposed in the notch (93). The material (94) is provided with an insertion hole (95) through which the gas pipe (91) and the power cord (92) are inserted. This insertion hole (95)
Is formed by cutting a required portion of the cover material (94) with a cutter or the like. Further, the positions of the screw insertion hole (96) and the driver insertion hole (97) are adjusted so that the depth adjusting member (20) can be attached with the right and left sides reversed.

According to the example in FIG. 7, the depth of the stove body (1) can be adjusted to the depth of the gas stove stand by the depth adjusting member (20), and the gas pipe (91) can be used.
Since the top plate (20a) can cover the upper part of the power cord (92) and the power cord (92), the appearance of the gas stove can be improved and the durability of the gas pipe (91) and the power cord (92) can be improved. Can be made.

The gas stove according to the present invention is not limited to the above-described embodiment. For example, the intake part may be provided separately from the burner device, and the exhaust hole of the cooling air passage may be provided on the rear surface of the extension part. For example, various design changes can be made without changing the gist of the present invention.

<Effects of the Invention> As described above, according to the gas stove of the present invention, a flat cooling air passage for flowing the air along the top plate and the juice saucer inside the stove body, and a ventilation air for flowing the outside air through the cooling air passage. Since the means is provided, the outside air flowed into the cooling air passage by the ventilation means,
It can be applied to the top plate and soup saucer as a high-velocity flow to improve the heat transfer coefficient to prevent overheating of the top plate and soup saucer, and in addition to the primary side of the gas combustion section and the mixing pipe outside the cooling air passage. Since the intake section for mixing and supplying air is provided, it is possible to prevent the adverse effect of the wind on the gas combustion section and the intake section, and to achieve the unique effect of stabilizing the combustion.

In addition, an operation unit with a control circuit for controlling gas combustion,
When the intake side of the cooling air passage is provided on the front side of the partition wall of the stove body, the operating part is placed on the intake side of the cooling air passage where the outside air that is not yet hot just after the intake air flows. Since it is installed, it is possible to prevent the operating part from getting hot,
It is possible to ensure the safety during operation and the reliability of the operation of the control circuit.

Furthermore, a gas plug and a power cord attachment portion are provided on the rear side of the partition wall of the stove body, and an extension portion is provided to cover at least the gas plug and the power cord attachment portion. When the cooling air passage exhaust hole is provided rearward, the extension portion can prevent the juice and the like from falling onto the gas plug and the power cord attachment portion. Since the hot air can be exhausted rearward from the exhaust hole of the section, it is possible to prevent the hot air from hitting the gas plug and the power cord attachment portion, and prevent the gas plug and the power cord attachment portion from being deteriorated.

Further, when a depth adjusting member for adjusting the depth is provided in the rear portion of the main body of the stove while covering the upper side of the gas pipe and the power cord, the depth adjusting member allows the depth adjusting member to be installed at the time of installation on the gas stove stand. In addition, by matching the depth of the stove body to the depth of the gas stove stand, the aesthetics can be improved, and corrosion deterioration due to the dropping of the gas pipe and the power cord can be prevented.

[Brief description of drawings]

FIG. 1 is a side elevational sectional view showing an embodiment of a gas stove according to the present invention, FIG. 2 is an overall external perspective view, FIG. 3 is a partially cutaway front view, and FIG. 4 is an exploded perspective view of essential parts of a burner device. Fig. 5 is a plan view with the top plate and the juice pan removed, Fig. 6 is an exploded perspective view of the member forming the cooling air passage, and Fig. 7 shows a state in which the depth adjusting member is attached to the rear part of the stove body. FIG. 8 is a plan view of an essential part, FIG. 8 is an exploded perspective view thereof, and FIG. 9 is a schematic sectional view of a conventional gas stove. (1) …… Stove body, (3) …… Soup saucer, (5) …… Cooling air passage, (8) …… Gas combustion section, (9) …… Extended section, (11) …… Top plate , (18) …… Exhaust hole, (19) …… Power cord attachment part, (20) …… Depth adjusting member, (21) …… Gas plug, (23) …… Mixing tube, (233) …… Intake Intake port as part, (71) …… Operation part, (72) …… Control circuit, (91) …… Gas pipe, (92) …… Power cord.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshihito Taga, 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd. (72) Hiroshi Katsuhara 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Sanyo Denki Incorporated (72) Inventor Yoshifumi Ozaki 3 201 Minamiyoshikata, Tottori-shi, Tottori Sanyo Electric Co., Ltd. (56) References Micro-film (JP, U) of the detailed description and drawings attached to the application for Japanese Utility Model Publication No. 57-156701)

Claims (4)

[Claims] 1. A gas stove in which a juice saucer having a through hole for inserting a burner is disposed on a top plate of a stove body, and the juice pan is disposed inside the stove body above the mixing pipe and at the same time as the burner head support portion is inserted. A partition bottom plate having a general through hole, a partition wall, a top plate and a soup saucer, and a flat cooling airflow passage along which the airflow flows along the top and soup saucer, and a ventilation air flow through which the outside air flows. In addition to providing the means, the gas combustion section and the intake section for mixing and supplying the primary air to the mixing pipe are arranged in a state of being separated from the cooling air passage by the partition bottom plate and the partition wall. A gas stove that does. 2. The operating section having a control circuit for controlling the combustion of gas and the intake side of the cooling air passage provided on the front side of the partition wall of the stove body. Gas stove. 3. A gas plug for connecting a gas pipe and a power cord attaching portion are provided on the rear side of the partition wall of the stove body, and an extending portion is provided to cover at least the gas plug and the power cord attaching portion. The gas stove according to claim 1, wherein an exhaust hole of the upper cooling air passage is provided rearward in the extending portion. 4. The gas stove according to claim 1, wherein a depth adjusting member for adjusting the depth of the stove body is provided at a rear portion of the stove body while covering the gas pipe and the power cord from above.