JP3329694B2 - Range food - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood which can be attached to a lower part of a hanging cabinet for reliably discharging waste gas, oily smoke, odor and the like generated during cooking to the outside.

[0002]

2. Description of the Related Art In recent years, the use of kitchens as system kitchens has progressed, and the demand for renewal of kitchens has also increased. Under such circumstances, the demand for renewal of the range hood is increasing, but a shallow range hood is required for renewal. However, in the conventional shallow range hood, as shown in FIG. 8, a blower chamber 101 is provided inside, and an outer frame 104 in which a suction port 102 and a discharge port 103 are provided in the blower chamber 101; Electric motor 10 provided in
5, a blade 106 and a fan casing 107, and an electric motor 105 is provided on the top surface of the outer frame 104.
A protrusion 108 is provided to allow the upper part of the
Is formed by a single-suction type centrifugal fan.
9 was provided with an aperture.

[0003]

In such a conventional range hood, since the aperture of the disk plate 109 cannot be reduced so deeply, the motor 105 cannot be embedded in the blade 106, and the motor 105 is mounted on the top surface of the outer frame 104. The projection 108 on the top surface of the outer frame 104 is attached to the hanging cabinet 1 when attaching to the hanging cabinet 110 because the convex 108 for releasing is required.
There is a problem that a space 111 must be provided above the range hood outer frame 104 because it cannot be directly attached because it comes into contact with the outer hood 10.

An object of the present invention is to provide a range hood that can be directly attached to the bottom of a hanging cabinet, can increase the air volume, and can also cool an electric motor. I do.

[0005]

A range hood according to the present invention has a box-shaped range hood body having a suction port on a lower surface and a discharge port formed on a side surface or the like, and the range hood provided in the range hood body. A fan casing formed with a suction port communicating with the suction port, a discharge port communicating with the discharge port, and a bowl-shaped holding portion in which the upper side of the electric motor is almost housed and held; and a fan casing held by the holding portion of the fan casing. A double suction type driven by the electric motor, comprising a main fan part formed on the lower surface side of a disk plate having a bowl-shaped part in the center of which the lower part of the electric motor is covered, and a sub-fan part formed on the upper surface side. and a centrifugal fan, from the main fan side
In order to allow air to flow through the sub-fan section,
A first ventilation hole in a bowl-shaped portion of a scoop, and a peripheral portion of the bowl-shaped portion;
And a second ventilation port .

According to the present invention, it is possible to provide a range hood that can be directly attached to the bottom surface of a hanging cabinet and can improve the exhaust capability of contaminated air .

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention has a box-shaped range hood body having a suction port on a lower surface and a discharge port formed on a side face or the like, and provided in the range hood body. A fan casing formed with a suction port communicating with the suction port, a discharge port communicating with the discharge port, and a bowl-shaped holding portion in which the upper side of the electric motor is substantially housed and held;
A main fan portion formed on the lower surface side of a disk plate having a bowl-shaped portion in the center of which the lower portion of the electric motor held by the holding portion of the fan casing is covered, and a sub fan portion formed on the upper surface side a double suction type centrifugal fan is the Rica moving by the motor becomes, the more the main fan unit collateral
To allow air to flow through the fan section,
The first ventilation hole is formed in the bowl-shaped portion, and the second ventilation hole is formed in the periphery of the bowl-shaped portion.
The upper part of the electric motor is held in a state of being housed in a holding part on a bowl of a fan casing, and the lower part of the electric motor is a disk plate of a double suction centrifugal fan. It is covered by the bowl-shaped part formed in the range hood, so it is provided in the range hood main body, so there is no protruding part by the electric motor on the top surface of the range hood main body, the range hood main body can be formed in a shallow shape and on the bottom of the hanging cabinet It has the effect of being able to be mounted directly and to be able to increase the air volume by means of the two suction centrifugal fans and the ventilation holes provided in the disk plate.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. (Embodiment 1) As shown in FIG. 1, an intake port 4 communicating with the intake port 1 is provided in a box-shaped range hood body 3 having a suction port 1 on a lower surface and a discharge port 2 formed on a side surface or the like. A fan casing 8 having a discharge port 5 communicating with the discharge port 2 and a bowl-shaped holding portion 7 in which the upper side of the electric motor 6 is almost housed and held is provided. The electric motor 6 held by the holding portion 7 of the fan casing 8 is provided. Has a bowl-shaped part 9 at the center, the lower part of which is covered,
Disc plate 1 in which peripheral portion 10 of bowl-shaped portion 9 is formed flat
The main fan unit 12 is formed by providing a large number of blades in the peripheral portion 10 on the lower surface side of the disk 1, and the sub fan portion 13 is formed by providing a large number of blades in the peripheral portion 10 on the upper surface side of the disk plate 11. To form a double suction centrifugal fan 14.

The main fan portion 12 of the disk plate 11
A ventilation port 15 through which air flows is provided from the side to the sub-fan section 13 side, a shutter 16 is provided at the discharge port 2 for preventing outside air from entering, and a motor 6 is operated on the front surface of the range hood body 3. A control switch 17 for controlling is provided.

In the above configuration, when the range hood body 3 is attached to the bottom of the hanging cabinet 18 and the discharge port 2 is provided so as to communicate with the outside, and the electric motor 6 is operated by the control switch 17, waste gas, oily smoke generated during cooking, Contaminated air such as odor is sucked into the suction port 4 of the fan casing 8 by the suction port 1 of the range hood body 3, and the fan casing 8 is formed by the main fan portion 12 of the double suction centrifugal fan 14.
Is discharged to the outside through a discharge port 2 provided in the range hood main body 3.

On the other hand, the air in the main fan section 12 is sucked from the ventilation port 15 provided in the disk plate 11 by the sub-fan section 13 of the double suction type centrifugal fan 14 and sent to the discharge port 5 of the fan casing 8. Then, the air is discharged from the discharge port 2 to the outside together with the contaminated air sent to the discharge port 5 by the main fan unit 12.

As described above, according to the range hood of the first embodiment of the present invention, the upper part of the electric motor 6 is held in a state of being housed in the bowl-shaped holding part 7 of the fan casing 8, and the lower part of the electric motor 6 The portion is covered by the bowl-shaped portion 9 formed on the disk plate 11 of the double suction type centrifugal fan 14 and is provided in the range hood main body 3. , The range hood can be formed in a shallow shape, can be directly attached to the bottom surface of the hanging shelf 18 without providing a space, and the air volume can be reduced by the two suction centrifugal fans 14 and the ventilation holes 15 provided in the disk plate 11. Increase can be achieved.

(Embodiment 2) As shown in FIGS. 2 and 3, a disk plate 11A of a double suction type centrifugal fan 14A.
The first ventilation port 19 is provided in the bowl-shaped portion 9A of the first embodiment, and the second ventilation port 20 is provided in the peripheral portion 10A of the bowl-shaped portion 9A.

In the above configuration, the contaminated air is sucked into the main fan section 12 of the double suction type centrifugal fan 14A and discharged by centrifugal force.
The contaminated air in the main fan unit 12 is sucked from the first ventilation port 19 and the second ventilation port 20 provided in the disk plate 11A, and the amount of contaminated air sucked into the main fan unit 12 is increased.

As described above, according to the range hood according to the second embodiment of the present invention, the disk plate 1 provided between the main fan section 12 and the sub-fan section 13 of the double suction centrifugal fan 14A.
Since the first ventilation port 19 and the second ventilation port 20 are provided in 1A, the function of the sub fan section 13 is enhanced, and the main fan section 12 is provided.
As a result, the amount of contaminated air sucked into the air increases, and the ability to exhaust contaminated air is improved.

(Embodiment 3) As shown in FIGS. 4 and 5, the first plate provided on the bowl-shaped portion 9B of the disk plate 11B
And the second ventilation port 20A provided in the peripheral portion 10B of the bowl-shaped portion 9B are shifted from each other.

In the above configuration, the contaminated air is sucked into the main fan portion 12 of the double suction type centrifugal fan 14B and discharged by the centrifugal force, and is provided on the bowl portion 9B of the disk plate 11B by the sub fan portion 13. First ventilation opening 19
A and the second ventilation port 20A provided in the peripheral portion 10B sucks the contaminated air in the main fan portion 12.

At this time, the bowl-shaped portion 9B of the disk plate 11B
The first ventilation port 19A provided in the sub-fan portion 13 and the second ventilation port 20A provided in the peripheral portion 10B are formed so as to be shifted from each other, so that the blade provided in the sub-fan portion 13 always has the first ventilation port 19A. Or, it faces the second ventilation port 20A, so that the suction work in the sub fan unit 13 increases.

As described above, according to the range hood of the third embodiment of the present invention, the first hood provided on the disk plate 11B is provided.
Since the positions of the ventilation port 19A and the second ventilation port 20A are shifted from each other, the suction work amount in the sub-fan portion 13 increases, and the exhaust capacity is further improved.

(Embodiment 4) As shown in FIGS. 6 and 7, a first plate provided on a bowl-shaped portion 9C of a disk plate 11C is provided.
Is formed by cutting and raising the cut-and-raised piece 21 toward the inside of the bowl-shaped portion 9C.

In the above configuration, the contaminated air is sucked into the main fan portion 12 of the double suction type centrifugal fan 14C and discharged by centrifugal force, and is provided on the bowl-shaped portion 9C of the disk plate 11C by the sub-fan portion 13. First ventilation opening 19
The contaminated air in the main fan portion 12 is sucked in through the second fan B and the second ventilation holes 20A provided in the peripheral portion 10B.

At this time, the cut-and-raised piece 21 cut and raised to form the first ventilation port 19B generates an airflow toward the electric motor (not shown), and the electric motor is cooled.

As described above, according to the range hood of the fourth embodiment of the present invention, since the first ventilation port 19B is formed by cutting and raising the evacuation piece 21 toward the inside of the bowl-shaped portion 9C, the exhaust air is exhausted. With the improvement of the capacity, the electric motor is cooled by the airflow generated by the cut-and-raised pieces 21.

[0024]

As is clear from the above embodiment,
According to the present invention, a box-shaped range hood body having a suction port on a lower surface and a discharge port formed on a side surface or the like, and an intake port and a discharge port communicating with the suction port provided in the range hood body are provided. A fan casing having a discharge port communicating therewith, and a bowl-shaped holding portion in which the upper portion of the motor is substantially housed and held; and a bowl-shaped portion which covers the lower portion of the motor held by the holding portion of the fan casing the a double suction type centrifugal fan driven by the auxiliary fan unit and become more the electric motor to be formed on the main fan section and the upper surface formed on the lower surface side of the disk plate having a center, the main fan unit
Side to allow air to flow from the side to the sub-fan section side.
A first ventilation hole in a bowl-shaped portion of the disc plate;
Since the second ventilation port is provided in the periphery, it can be directly attached to the bottom of the hanging cabinet, increasing the air volume and contaminating the sky.
It is possible to provide a range hood capable of improving the air exhaust capability .

[0025]

Further, since the first ventilation port provided in the bowl-shaped portion of the disk plate and the second ventilation port provided in the peripheral portion of the bowl-shaped portion are arranged to be shifted from each other, suction work in the sub-fan portion is performed. The amount is increased, and the exhaust air volume can be further increased.

Further, since the first ventilation port provided in the bowl-shaped portion of the disk plate is formed by cutting and raising a cut-and-raised piece directed toward the inside of the bowl-shaped portion, the amount of exhaust air can be increased and the motor is cooled. be able to.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a range hood according to a first embodiment of the present invention.

FIG. 2 is a front view showing the configuration of a double-suction centrifugal fan according to Embodiment 2 of the present invention.

FIG. 3 is a cross-sectional view showing the configuration of the double suction centrifugal fan.

FIG. 4 is a front view showing the configuration of a double-suction centrifugal fan according to Embodiment 3 of the present invention.

FIG. 5 is a cross-sectional view showing a configuration of the suction type centrifugal fan.

FIG. 6 is a front view showing the configuration of a double suction centrifugal fan according to a fourth embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a configuration of the suction type centrifugal fan.

FIG. 8 is a sectional view showing a configuration of a conventional range hood.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 suction port 2 discharge port 3 range hood main body 4 intake port 5 discharge port 6 motor 7 holding section 8 fan casing 9 bowl-shaped section 9A bowl-shaped section 9B bowl-shaped section 9C bowl-shaped section 10A peripheral section 10B peripheral section 11 disk plate 11A Disk plate 11B Disk plate 11C Disk plate 12 Main fan unit 13 Sub fan unit 14 Double suction centrifugal fan 15 Ventilation opening 19 First ventilation opening 19A First ventilation opening 19B First ventilation opening 20 Second ventilation opening 20A Second ventilation hole 21 Cut-and-raised piece

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 7/06 101

Claims (3)

(57) [Claims] 1. A box-shaped range hood body having a suction port on a lower surface and a discharge port formed on a side surface or the like, and a suction port and a discharge port provided in the range hood body and communicating with the suction port. A fan casing having a discharge port communicating therewith and a bowl-shaped holding portion in which the upper portion of the motor is substantially housed and held, and a bowl-shaped portion covered by a lower portion of the motor held by the holding portion of the fan casing. a double suction type centrifugal fan driven by the auxiliary fan unit and become more the electric motor to be formed on the main fan section and the upper surface formed on the lower surface side of the disk plate having a center, the main fan side
In order to circulate air to the auxiliary fan part side,
A first ventilation opening formed in a bowl-shaped portion of the disc plate, and a periphery of the bowl-shaped portion;
A range hood having a second ventilation port on a side . 2. The position of the first ventilation port and the position of the second ventilation port are different from each other.
The range hood according to claim 1, wherein the range hood is arranged . 3. A cut-out extending toward the inside of the bowl-shaped portion.
3. The range hood according to claim 1, wherein the raised piece is cut and raised .