JPH083847Y2 - Drop-in stove - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application field and outline of the invention] The present invention is a drop-in stove that is installed by dropping it into an opening formed in a counterboard such as a cooking table or a sink, and in particular, a storage room with a door is formed below. It is related to a drop-in stove that is installed on the existing counter board and sucks combustion air from below, and it occurs when the door of the storage chamber is closed by making it possible to block the air path to the combustor chamber. This prevents the inconvenience that the flame of the combustion section is blown out by the wind pressure.

[0002]

2. Description of the Related Art In a conventional drop-in stove, a main body case (2) for accommodating a lower portion of a burner than a flame hole is provided in an opening (40) formed in a worktop (W) of a cooking table or a sink. It is dropped and fixed, and the lower area of the main body case (2) is often used as a storage room (S) for storing kitchen appliances and the like, as shown in FIG. A door (D) is attached to the chamber (S) so as to be openable and closable. In the conventional drop-in stove, a ventilation hole is formed in the bottom surface of the main body case (2), and the air for combustion is supplied from this.

In this conventional apparatus, the wind pressure generated when the door (D) of the storage chamber (S) is closed affects the burner storage portion, but as shown in FIG. 4, the front portion of the main body case (2). Is an operation panel portion, and this portion has a ventilation portion to some extent, and the wind pressure is diffused from this ventilation portion. However, in the case where the operation panel section is arranged on the upper surface of the work top (W), the wind pressure passes through the burner housing section and reaches the flame hole section as it is, so that the flame in the combustion section of the burner is blown out. There is.

In order to solve the inconvenience, the inside of the body case (2) may be hermetically closed so that careless air does not flow into the body case (2). If the inside of the body is closed, air cannot be supplied to the combustion section and the temperature inside the body case (2) rises abnormally, causing a valve device or electrical control built in the body case (2). The electronic board may overheat.

[0005]

[Technical Problem] According to the present invention, the main body case (2) is fixed by dropping the main body case (2) into the opening (40) formed in the worktop (W) such as the cooktop or sink. ), A storage chamber (S) is provided below the drop-in stove in which the combustion air is sucked from below.
If a large air flow is temporarily generated in the main body case (2) so that the flame of the combustion section is not blown off by the wind pressure generated when the door (D) is closed. It is a technical issue to automatically shut off the air path to the combustion section.

[0006]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to store a valve device (11) and an electronic control board (13) in a main body case (2) by a partition plate (3). And a combustor chamber (20) for accommodating the burner (10).
The inside is hermetically sealed except for the upper part, the valve storage chamber (22) is communicated with the lower storage chamber (S), and an opening (30) is formed in the partition plate (3) to form the combustor chamber ( Two
0) and the valve accommodating chamber (22) are communicated with each other, and the opening (30) is provided near the periphery of the valve accommodating chamber (22) side.
A damper (1) capable of closing the opening (30) by wind pressure is provided, and the damper (1) is biased in the opening direction. "

[0007]

The above technical means operates as follows. The valve housing chamber (22) and the combustor chamber (20) are partitioned by a partition plate (3), and the partition plate (3) has an opening (3
0) is formed, and the damper (1) that closes the opening (30) is always biased in the opening direction, so that the valve accommodating chamber (22) and the combustor chamber (20) are separated from each other. Normally, the communication is established by the opening (30). Further, since the valve storage chamber (22) is in communication with the lower storage chamber (S), the air in the storage chamber (S) flows into the valve storage chamber (22). It will be. That is, air flows into the valve accommodating chamber (22) from below, the air passes through the opening (30) and is sent into the combustor chamber (20), and the burner (1
It will be supplied to the combustion section 0) as combustion air.

When a wind pressure is generated when the door (D) of the storage chamber (S) is closed, it is provided on the valve storage chamber (22) side of the partition plate (3) in the main body case (2). It acts on the damper (1), and the damper (1) closes the opening (30) of the partition plate (3). Therefore, the air path to the combustor chamber (20) is blocked, and the inside of the combustor chamber (20) is not affected by the wind pressure.
Since this damper (1) is biased in the opening direction,
When the wind pressure disappears, the opening (30) is opened again. Further, as described above, the combustion air to the combustion section is supplied from below the valve storage chamber (22), so that the air inside the valve storage chamber (22) is always air-cooled by the air from the storage chamber (S). Will be done.

[0009]

[Effect] Even if a wind pressure is generated by closing the door (D) of the storage chamber (S), it does not affect the inside of the combustor chamber (20), so the burner (10) inside the combustor chamber (20). There is no inconvenience that the flame of 1) is inadvertently blown out by the wind pressure. As long as no wind pressure is generated, the valve accommodating chamber (22) and the combustor chamber (20) are in communication with each other through the opening (30). Therefore, the combustion portion of the burner is used for combustion from below the valve accommodating chamber (22). The primary air of can be sucked. or,
Since the inside of the valve housing chamber (22) housing the valve device (11) is constantly air-cooled, there is no risk of abnormally overheating the inside of the valve housing chamber (22).

[0010]

Embodiments of the present invention described above will be described in detail with reference to the drawings. In the embodiment of the present invention, as shown in FIG. 1, a valve device (11) in which a lower portion of a burner (10) from a flame hole portion and a nozzle (12) facing the burner (10) are connected in series. A main body case (2) which is a box body that is open upward, and an opening through which the flame hole portion of the burner (10) projects is formed in the center of the main body case (2). A case (21), which is a so-called drop-in stove in which the main body case (2) is fitted and fixed in an opening (40) formed in a worktop (W) such as a cooking table, and the like. As shown in FIG. 2, a storage chamber (S) for storing kitchen appliances and the like is provided, and an openable door (D) is provided at the front opening of the storage chamber (S). It is supposed to be.

Further, a knob portion (4) projects from the outer surface of the upper case (21), and the valve accommodating chamber (22) of the main body case (2) is operated by operating the knob portion (4). Various signals are input to the control circuit of the control board (13) provided in the inside, whereby the output from the output device such as the solenoid valve as the valve device (11) or the ignition device is controlled. It is possible to perform operations such as ignition / extinction of the burner (10) and heat power adjustment. In this embodiment, a valve accommodating chamber (22) for accommodating a valve device (11) accommodated in front of the main body case (2), a control board (13) vulnerable to heat, and a burner (10). A partition plate (3) is provided between the interior of the main body case (2) and the combustor chamber (20) for housing the inside of the main body case (2).

The height of the partition plate (3) is the main case (2).
The width of the partition plate (3) is set slightly lower than that of the main body case (2), and the width of the main body case (2) is substantially the same as that of the partition plate (3) above the valve device (11). The covering piece (31) covering a part or the whole area of the above is extended forward, and the supporting pieces (33) (33) are extended from the lower end side and both side edges by a predetermined length.
The partition plate (3) is mounted in the main body case (2) by fixing the support pieces (33) (33) to both side walls and the bottom surface of the main body case (2). Further, the upper surface of the covering piece (31) and the lower surface of the upper case (21) are sealed so that no gap is generated. That is, in this embodiment, when the partition plate (3) having a predetermined posture is inserted into the main body case (2) at a predetermined position, the partition plate (3), the lower surface of the upper case (21), and the main body case (2). The space surrounded by the front wall, both side walls and the bottom surface of 2) is the valve accommodating chamber (2
2), and a space other than the valve accommodating chamber (22) in the main body case (2) becomes a combustor chamber (20). Then, the vent hole (3
2) (32) is formed so that the storage chamber (S) below the main body case (2) and the valve storage chamber (22) are in communication with each other, while the combustor chamber (containing the burner (10) ( 20)
There are no vents on the bottom and side walls of the. The nozzle (12) is densely penetrated at a predetermined position of the partition plate (3) and faces the primary air port of the burner (10). or,
The knob portion and the control portion of the valve device (11) are electrically or mechanically connected to each other.

Also, in this embodiment, the partition plate (3)
As shown in FIG. 1, an opening (30) is formed in the upper area of the opening (30), and the opening (30) can be closed near the lower end of the opening (30) on the valve accommodating chamber (22) side. A damper (1) of various sizes is rotatably supported. Near the free end of this damper (1),
As shown in FIG. 3, the weight (5) is attached to the valve accommodating chamber (2
The damper (1) is provided so as to project toward the 2) side, and the weight (5) urges the damper (1) in the opening direction. Therefore, normally, the valve accommodating chamber (22) and the combustor chamber (20) are in communication with each other, and the air flowing from the ventilation holes (32) (32) of the valve accommodating chamber (22) is not separated from the partition plate. After passing through the opening (30) of (3) and reaching the inside of the combustor chamber (20), it is supplied to the flame hole portion of the burner (10) as combustion air.

When the damper (1) is opened, the lower end of the damper (1) contacts the partition plate (3) as shown by the chain double-dashed line in FIG. The posture is always maintained at a certain angle.

Since the damper (1) is biased in the inclined posture as described above, the wind pressure generated when the door (D) of the storage chamber (S) is closed is the ventilation holes (32) (32). The damper (1) inside the valve accommodating chamber (22)
Will be pushed from below. As a result, the damper (1) closes the opening (30) of the partition plate (3). Therefore, the wind pressure generated when closing the door (D) does not have a bad influence on the flame hole portion of the burner (10) in the combustor chamber (20). When the opening (30) is closed by the damper (1), air is temporarily not sucked into the burner (10), but it is temporary that the damper (1) closes the opening (30) by wind pressure. Therefore, when the wind pressure disappears, the damper (1) is urged again in the opening direction by the weight (5), and the valve accommodating chamber (22) and the combustor chamber (20) are in communication again. So there is no problem.

In this embodiment, the damper (1) is pivotally supported in the vicinity of the lower end of the opening (30), but is pivotally supported in the vicinity of the upper end and is biased by a spring so as to be inclined at a predetermined angle in the opening direction. May be. In this case, the spring may be a loose spring that can be easily elastically deformed by wind pressure.

When a storage chamber (S) with a door (D) is provided below the main body case (2) as in this embodiment, the door (D) of the storage chamber (S) is closed. It was described in detail that the wind pressure generated at that time adversely affects the flame of the combustion part, but even when the door (D) is opened, it is a little,
Air may flow from the body case (2) toward the storage chamber (S). This is because the air in the main body case (2) temporarily flows back to the door side when the door is opened. To prevent this inconvenience, as shown by the chain double-dashed line in FIG. A damper similar to the one adopted in the present invention is provided near the upper end of the opening (30) of the partition plate (3) on the side of the combustor chamber (20) and is axially supported so as to urge it in the opening direction. Good. As a result, even if a temporary pressure difference occurs in the main body case (2) due to the opening and closing of the door (D), there is no inconvenience that the flame of the combustion section is adversely affected.

In this embodiment, the drop-in stove is used, but it goes without saying that it can be applied to a drop-in type rice cooker.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention.

FIG. 2 is an explanatory view of a usage state of the drop-in stove.

FIG. 3 is an explanatory diagram of a damper (1).

FIG. 4 is an explanatory diagram of a conventional example.

[Description of References] (1) ... Damper (10) ... Burner (11) ... Valve device (13) ... Control board (2) ... Main body case (20) ... Combustion Vessel chamber (22) ... Valve storage chamber (3) ... Partition plate (30) ... Opening (40) ... Opening (W) ... Worktop (S) ... Storage chamber

Claims (1)

[Scope of utility model registration request] 1. A worktop (W) such as a cooking table or a sink.
In the drop-in stove of the type in which the main body case (2) is fixed by dropping it into the opening (40) formed in the main body case (2), the main body case is separated by the partition plate (3). The inside of (2) is divided into a valve accommodating chamber (22) accommodating the valve device (11) and the electronic control board (13) and a combustor chamber (20) accommodating the burner (10), and the combustion is performed. The inside of the chamber (20) is sealed except for the upper part, and the valve storage chamber (2
2) is communicated with the lower storage chamber (S), and an opening (30) is formed in the partition plate (3) so that the combustor chamber (2) is formed.
0) and the valve accommodating chamber (22) are communicated with each other, and the opening (30) is provided near the periphery of the valve accommodating chamber (22) side.
A drop-in stove in which a damper (1) capable of closing the opening (30) by wind pressure is provided and the damper (1) is urged in the opening direction.