JPH0827048B2 - Range hood with built-in water heater - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood having a blower for exhausting oil fumes generated in a kitchen and a water heater for supplying hot water used in a kitchen or the like.

2. Description of the Related Art In recent years, in order to effectively use the kitchen space, there has been a demand for higher performance, combination, and compactness of various devices installed in the kitchen.

For this reason, a conventional range hood installed in a kitchen has been configured, for example, as shown in FIG.

That is, the hood 3 is installed on the wall 4 above the gas stove 2 of the gas appliance table 1. Then, the fan 5 provided inside the hood 3 sucks the oil smoke generated during cooking using the gas stove 2 into the hood 3 from the suction port 6 provided on the entire substantially horizontal lower surface of the hood 3. Further, the gas is discharged from the exhaust port 8 through the exhaust pipe 7 and the fan 5. On the other hand, in the hood 3, there are a burner 9, a heat exchanger 10,
A water heater 12 composed of an operating mechanism 11 is integrally built in.
This water heater 12 has an intake port 13 for combustion air opened on the front surface of the hood 3, and an exhaust pipe 14 for combustion exhaust gas is connected to an exhaust pipe 7 via a branch portion 15 to form an exhaust pipe of a range hood. Are shared. Reference numeral 16 denotes a damper provided in the branch portion 15 for switching between the exhaust pipe 14 on the water heater 12 side and the exhaust pipe 7 on the range hood side.

Problems to be Solved by the Invention When using the range hood and cooking on the gas stove 2 and the oil accidentally catches fire and a large flame rises, the oil immediately enters the hood 3 through the suction port 6. And
Even though the air is exhausted by the fan 5 through the exhaust pipe 7, the exhaust power is limited, and the flame is temporarily contained in the hood 3, and the water heater 12 provided integrally in the hood 3, The operating mechanism 11 was also heated, which was not preferable. Especially when using the water heater 12 at the same time, the burner 9
Since the temperature of the water heater 12 itself has risen due to the combustion of, the temperature of the water heater 12 further rises, which is dangerous.

Although the oil smoke generated during cooking on the gas stove 2 is sucked by the fan 5 from the suction port 6 of the hood 3,
Since the lower surface thereof is in a substantially horizontal state, there is resistance when the flow of the oil smoke collides with the suction port 6, and it slightly spreads from the lower surface of the hood 3 to the left and right sides, and escapes. As a result, oil smoke may adhere to the air supply port 13 on the front surface of the hood 3, and the air supply port 13 may gradually be blocked, and due to lack of combustion air, the water heater 12 Burner 9
There was a risk that it would interfere with the burning of the.

Furthermore, if the exhaust pipe 14 of the water heater 12 is not airtightly connected to the branch portion 15, air will flow into the branch portion 15 from other parts of the hood 3 as well, and the exhaust of the water heater 12 will be exhausted. This not only hinders, but also reduces the original exhaust capacity of the hood 3.

The present invention solves the above-mentioned problems of the prior art, protects the water heater provided in the hood without impairing the suction performance of oil smoke, etc. from the heating by the flame accidentally occurring during cooking, and safely. In addition to being usable, it protects the intake port for the water heater from oily smoke and allows the exhaust passage of the water heater to be easily installed.

Means for Solving the Problems In order to solve the above problems, the present invention has an exhaust port, a front plate inclined toward the front side toward the upper part, and an intake port located at the upper end of the front plate, while the bottom surface is a bottom plate. And a box-shaped hood main body in which the front plate and the suction port are opposed to each other and a blower is installed inside the hood main body, and the hood main body is provided adjacent to the blower, and a hood main body wall and a case are provided. The water heater is surrounded by a weight, and the water heater has an intake port opened on the side wall of the hood body excluding the front side where the front plate is located, and an exhaust port is provided near the suction port of the blower via a duct. It is located as a configuration.

Action The present invention can protect the water heater from a large flame accidentally generated in the kitchen by the front plate inclined toward the front as it goes to the upper part of the hood body and the air intake port located at the upper end of the hood body. it can. Also, since the intake port for the water heater is located on the side wall other than the front side of the hood body, it will not be blocked by oil smoke, etc., and the exhaust port for the water heater will only open near the suction port of the blower, so it is easy to assemble. You can

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Reference numeral 21 denotes a box-shaped hood body that is airtightly formed by a rear plate 21a, a bottom plate 21b, a top plate 21c, left and right side plates 21d, and a front plate 21e. And this hood body 21 is the fourth
As shown in the figure, it has a width approximately the same as the width of the gas appliance base 22, is located on the right inside and above, and has the suction port 23 with a front plate.
A blower 24 consisting of a centrifugal fan is installed facing the 21e. The front plate 21e of the hood body 21 is detachably connected to the bottom plate 21b and the left and right side plates 21d, and is inclined toward the front side as it goes upward. Reference numeral 25 is an air supply port formed at the upper end of the front plate 21e and formed to fill the width of the hood main body 21, and a filter 26 for oil smoke is detachably attached slightly upward from the horizontal. An exhaust port 27 is opened in the top plate 21c of the hood body 21, and an exhaust duct 28 is connected to the exhaust port. 29 is a case 30, a burner 31, a heat exchanger 32, a water supply valve 33,
A water heater such as a gas instantaneous water heater with a built-in gas supply valve 34, etc., and is installed inside the hood main body 21 on the left side next to the blower 24. This water heater 29 has an intake port 35 for inhaling the combustion air of the burner 31 and the like, which is communicated with the case 30 to form a hood body.
The right side surface plate 21d of 21 is opened so as to protrude from the lower portion. Further, the water heater 29 has an exhaust port 36 for discharging combustion exhaust gas from the burner 31.
Is not connected to the suction port 23 of the blower 24, but is located in the vicinity thereof via an exhaust duct 37. Exhaust duct 37
Has one end connected to the exhaust side of the heat exchanger 32, and penetrates the case 30 to arrange the other end on the front side of the blower 24. 38
Is a water supply pipe, 39 is a hot water supply pipe, and 40 is a gas supply pipe, and these are led out from the bottom plate 21b of the hood body 21. Reference numeral 41 denotes a control unit provided at the front end portion 42, which is the frontmost side of the hood main body 21, and can rotate and stop the blower 24 by pressing the pressing portion 42, and also, as shown in FIG. When the plug 43 is opened, water flows and the sensor detects it, and the blower 24 is automatically rotated. After that, the pressing portion 44 is pushed to ignite the burner 31 and control is performed so that hot water can be supplied. In the figure, 45 is a gas stove, 46 is a cooking pot, 47 is a storage cabinet, 48 is a sink, and 49 is a wall.

In the above embodiment, when the blower 24 is operated, the intake port 25
The suction force acts on, and part of the oil smoke that rises while cooking on the gas stove 45 rises on the inclined front plate 21e of the hood body 21, and further rises along the front plate 21e, The oil component is removed by the filter 26 along with other oil smoke 49 and enters the hood body 21 through the intake port 25 and the top plate 21.
Flows substantially horizontally along c. Then, as shown by the arrow, along the back surface side of the front plate 21e, it flows downward, enters the blower 24 from the suction port 23, and is discharged to the outside from the exhaust port 27 via the exhaust duct 28. Especially when a part 48 of the oil smoke hits the front plate 21e, a negative pressure range 50 is formed between the part 48 and the front plate 21e.
Occurs, and a part 48 of the oil smoke adheres to the front plate 21e and rises. As a result, the other oil smoke 49 is also attracted to the flow of part 48, and the oil smoke as a whole rises up to the front plate 21e side by the edge, and the front plate 21 of the hood body 21 is
It is possible to prevent oil smoke from being drawn into the intake port 25 by overflowing from e to the left, right, and front.

Also, even if a large flame rises accidentally during cooking,
Like the oil smoke, it hits the front plate 21e and rises in a pulled shape, and the intake port 25 is located at the upper end of the front plate 21e.
Since it is not sucked into the space inside 21, the blower 24, as well as the water heater 29, is covered by the front plate 21e and is not directly exposed to the flame.

On the other hand, in the water heater 29, water flows when the hot water tap 43 is opened, the control unit 41 operates the blower 24 by a signal that detects this, and then the pressing unit 44 is pressed to cause gas to flow into the burner 31 and burn. Hot water is supplied by the heated heat exchanger 32 and is discharged from the hot water tap 43. At this time, the combustion air of the burner 31 is sucked and supplied from the intake port 35 into the case 30 by the force of the blower 24, and the combustion exhaust gas of the burner 31 is further introduced into the hood body 21 from the exhaust port 36 through the duct 37. Although it will be in the space, the exhaust port 36 is near the suction port 23 of the blower 24, and the airflow flowing from the intake port 25 of the hood body 21 is also flowing toward the suction port 23. As a result, the air is not drawn into the inner space of the hood body 21, but is drawn into the blower 24 and is reliably discharged from the exhaust port 27 through the exhaust duct 28.

Although the gas instantaneous water heater is used as the water heater in the above embodiment, an electric water heater using electricity as a heat source may be used.

As described above, according to the present invention, since the water heater is covered by using the bottom plate with the bottom closed and the front plate of the hood body that causes the Coanda effect, and the intake port is located at the upper end of the front plate. Even if a large flame rises by mistake in the kitchen, it hits the front plate and the flame does not enter the hood body directly and easily, so it is possible to safely protect the water heater and the structure for the protection is the hood. Since it uses the structure peculiar to the main body, it can be made inexpensive.

Further, the intake port provided at the upper end of the front plate can efficiently suck oily smoke and the like due to the Coanda effect of the front plate,
It does not impair its suction performance. Further, since the water heater has a double structure in which it is covered with the hood body wall and the water heater case, the heat resistance is improved and the protection from the flame can be performed more strongly.

Also, open the intake port for the water heater on the side wall except the front side of the hood main body, locate the exhaust port near the suction port of the blower, and securely suck the oil smoke etc. to the intake port of the hood main body by the front plate, etc. Since the surface does not almost overflow, the inlet for the water heater will not be blocked by oil smoke, etc., and the operation of the water heater can be stabilized, and the exhaust path of the water heater can be securely connected to the air inlet of the blower. Since it is unnecessary, the assembling work is simplified, and the productivity can be improved and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a horizontal cross-sectional view of a main part of a range hood with a built-in water heater showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the same, and FIG. 3 is a side view of the range hood installed in a kitchen. FIG. 4 is a front view of the same, and FIG. 5 is a longitudinal sectional view of a conventional example. 21 ... Hood main body, 21e ... Front plate, 21d ... Side plate (side wall), 23 ... Suction port, 24 ... Blower, 25,35 ... Intake port, 27,36 ... Exhaust port, 29 ... … Water heater, 37… Duct.

Front page continuation (72) Hidetaka Matsui, Matsuda Seiko Co., Ltd., 6-2, 61-62, Imafuku Nishi, Joto-ku, Osaka City, Osaka Prefecture (72) Inventor, Yukitaka Murata 4-27-25, Sunagawa, Tachikawa 72) Inventor Naohisa Ito, 169-4, Kuri Shimma, Koshigaya, Saitama Prefecture (56) References: 56-10235 (JP, U), 61-84427 (JP, U)

Claims (1)

[Claims] 1. An exhaust port, a front plate inclined toward the front side toward the top, and an intake port located at the upper end of the front plate. The bottom face is closed by the bottom plate, and the front plate and the suction port are inside. A box-shaped hood body with a blower inside facing each other,
The water heater provided inside the hood main body next to the blower, and provided with a water heater double surrounded by a hood main body wall and a case, the water heater being provided on the side wall of the hood main body except the front side where the front plate is located. A water heater built-in range hood in which an intake port is opened and an exhaust port is located near a suction port of the blower via a duct.