JP4274022B2 - Range food - Google Patents

Description

  The present invention relates to a range hood that can be attached below a hanging cabinet that reliably discharges waste gas, oily smoke, odor, and the like generated during cooking to the outdoors.

  Conventionally, this type of range hood has been designed to reduce the pressure loss during piping, reduce the pressure loss during piping, and reduce waste gas generated during cooking in order to install exhaust ducts within the constraints of housing beam dimensions and ceiling height dimensions. There is a need to improve the collection efficiency of oil smoke and odors. Various devices designed for such a problem are known (see, for example, Patent Document 1).

Hereinafter, the configuration of the range hood will be described with reference to FIG.
As shown in the figure, the main body 101 composed of the blower unit 102, the outer shell 103, the adapter portion 104, and the rectifying plate 105 is provided with a side plate 107 having an inclined surface 106 formed below the side portion of the main body 101. A horizontal portion 108 having a shape along the lower surface and an inclined portion 109 having a shape along the inclined surface 106 are provided, and an intake port 110 is formed in the front and side narrower than the width of the main body 101. A rectifying plate 105 in which a flow path 111 is formed is provided, and an inclined portion 109 of the rectifying plate 105 is disposed closer to the main body 101 side than a height position of the inclined surface 106 of the side plate 107.

  The operation of the range hood configured as described above will be described.

The suction air velocity at the intake port 110 on the front side from the rear side of the main body 101 increases, so that the oil smoke rising along the rectifying plate 105 can be efficiently collected, and the thickness of the main body 101 can be reduced.
JP 2001-304642 A

  In such a conventional range hood, since the blower blowout part and the adapter part are in the vicinity for the purpose of thinning the main body while ensuring the collection performance, the position of the adapter part cannot be changed. There is a problem that the air volume-static pressure characteristics deteriorate and noise increases due to increased pressure loss, and the position of the adapter part can be changed without deteriorating the air volume-static pressure characteristics. It is possible to provide a chamber between the blower outlet and adapter part, but there is a problem that the product thickness increases and the storage space decreases. In order to minimize the air flow and static pressure characteristics and noise characteristics, it is required that the mounting surface of the adapter portion has a degree of freedom. Moreover, since there are many flat parts of a main body, there exists a subject that oil accumulates in ventilation equipment, and the structure where oil does not accumulate is requested | required.

  SUMMARY OF THE INVENTION The present invention solves such a conventional problem. The air blower is placed on the upper surface of the collecting portion so that the shaft direction of the motor is horizontal while realizing a thin collecting portion, and the casing. It is possible to eliminate the restriction on the mounting surface of the adapter part by making it a less turbo fan, to make the collecting part thin, to give the mounting surface of the adapter part flexibility, and to use the L-shaped pipe An object of the present invention is to provide a range hood that can be minimized and does not deteriorate the airflow-static pressure characteristics and noise characteristics.

  Moreover, there exists a subject which raises the storage space at the time of main body installation, and the further thickness reduction of the ventilation apparatus is requested | required.

  The present invention solves such a problem, and by increasing the blade diameter of the turbofan and reducing the blade width, the upper surface space of the collection unit can be widened when the main body is installed in the kitchen. The purpose is to provide a range hood that expands the storage space.

  Moreover, there exists a subject that oil accumulates inside a ventilation apparatus, and it is requested | required that it collects in one place.

  The present invention solves such a problem, and it is possible to collect oil in one place by adding a swash plate having an inclination with respect to a horizontal plane inside the suction surface of the blower unit. It aims at providing the range hood which oil does not accumulate in the inside of a vessel.

  In addition, there is a problem of reducing noise due to resonance in the blower device, and it is required to have a sound absorbing effect.

  This invention solves such a subject, and it aims at providing the range hood which reduces noise by absorbing the resonance noise inside a ventilation apparatus with a porous material.

  In order to achieve the above object, the range hood of the present invention is a casing-less turbocharger by placing a blower on the upper surface of the collecting portion so that the shaft direction of the motor is horizontal while realizing a thin collecting portion. A fan.

  By this means, it is possible to eliminate the restriction on the mounting surface of the adapter part, and the L-shaped pipe can be minimized, so that a range hood that does not deteriorate the air volume-static pressure characteristics and noise characteristics can be obtained.

  In order to achieve the above object, the turbo fan of the range hood of the present invention has a blade diameter of the turbo fan that is at least twice the round hole diameter of the adapter portion, and the blade width is at most 1/2 times the round hole diameter. It is a thing.

  As a result, the blower device can be thinned, and a range hood that can widen the upper surface space of the collecting portion when the main body is installed in the kitchen is obtained.

  Moreover, the swash plate of the range hood of this invention provides the inclination with respect to a horizontal surface inside the suction surface of a ventilation unit, in order to achieve the said objective.

  Thereby, oil can be collected in one place inside the blower device, and a range hood in which oil does not accumulate inside the blower device is obtained.

  Moreover, in order to achieve the said objective, the inner wall material of the ventilation unit of the range hood of this invention is made into the porous material.

  Accordingly, a range hood capable of absorbing the resonance noise inside the blower device with the porous material and reducing the resonance noise is obtained.

  According to the present invention, it is possible to eliminate restrictions on the mounting surface of the adapter portion, that is, it is possible to provide flexibility in mounting the adapter portion, and an effective range that does not deteriorate the air volume-static pressure characteristics and noise characteristics. Can provide food.

  In addition, it is possible to provide a range hood that can reduce the thickness of the blower device and can widen the upper surface space of the collection unit when the main body is installed in the kitchen.

  Moreover, the range hood which oil does not accumulate inside a ventilation apparatus can be provided.

  Moreover, the range hood which can absorb the noise which generate | occur | produces in an air blower and can reduce resonance noise can be provided.

The invention according to claim 1 of the present invention has a collection portion and a suction chamber communicated with a subsequent stage of the collection portion, and is configured to communicate the blower device constituted by a blower and a motor and the suction chamber. and a blower unit having an outer shell of the cuboid, in the structure arranged adapter portion having an opening of a round hole shape evacuating the sucked air by the blower to the outer periphery of the blower unit, the collecting said blower unit the shaft axis of the motor placed on the upper surface of the part to the horizontal direction, the blower is a turbo fan casing-less, the blower unit to a first surface of the four sides of the outer, which is parallel to the shaft axis of the motor the lower surface of said comprises a suction chamber arranged a suction port, a first side or three sides of other said shell, comprising the adapter section provided to the blower, the collection unit A Rukoto allowed the sucked air flows into the axial direction of the shaft of the motor to the turbo fan through the suction chamber from the suction port, the collecting portion can be made thinner, and the mounting surface of the adapter portion Can have a degree of freedom, and the L-shaped pipe can be minimized, so that the air flow-static pressure characteristics and the noise characteristics are not deteriorated.

  In addition, the fan diameter of the turbo fan is set to be twice or more the round hole diameter of the adapter part, and the blade width is set to be 1/2 or less of the round hole diameter. Since the upper surface space of the collection unit can be widened when installed, the upper surface space of the collection unit can be widened when the main body is installed in the kitchen, and thus the storage space is expanded.

  Further, in the blower unit, a rear plate space is provided by installing a partition plate on the side opposite to the suction of the blower, and the air discharged from the blower is discharged from the first blower passage and the blower as it flows into the adapter section. The air has a second air path that flows into the adapter part through the space behind the blower, and has the effect that it can flow into the adapter part without interfering with the airflow blown out from the turbofan. Have.

  Further, the round hole center axis of the adapter portion and the shaft axis of the motor are on the same plane and are substantially perpendicular to each other, so that the left and right imbalance can be eliminated.

  Further, a swash plate provided with an inclination with respect to the horizontal plane is added to the inside of the suction plane of the blower unit, and there is an effect that oil does not accumulate inside the blower device.

  Moreover, the edge part of a partition plate is made into R shape, and it has the effect | action that the noise which generate | occur | produces can be reduced by making airflow easy to rectify and turn.

  In addition, air passage partitions are provided so that the first air in the first air passage and the second air in the second air passage flowing into the adapter section do not interfere with each other, reducing the loss of airflow blown out from the turbofan. Has the effect of

  Further, the air passage partition is the same component as the adapter portion, and has the effect of reducing the number of components when the main body is attached and improving the workability.

  Moreover, a part of the outer shell of the blower unit is an air passage partition, which has the effect of reducing both cost and construction waste.

  Further, the inner wall material of the blower unit is made of a porous material, and has an effect of absorbing sound and reducing noise.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1 and FIG. 2, an intake chamber 2, a blower 3, and a motor 4 are built in the upper surface of the collection unit 1 that absorbs waste gas, oily smoke, water vapor, odor and the like generated during cooking and the like. A blower unit 102 configured in the shape of a metal box such as a sheet metal, and a lower surface of the blower unit 102 is provided with a suction port 5 for allowing the odor collected by the collection unit 1 to flow into the suction chamber 2. The adapter unit 104 that exhausts the air sucked into the main body 101 by the air blowing unit 102 is provided on the upper surface of the air blowing unit 102 or on at least one of the left and right surfaces. The adapter portion 104 has a shape that can be connected to a duct such as a round shape that is a path for exhausting air to the outside, so that the shaft axial direction of the motor 4 and the axial direction of the hole of the adapter portion 104 are in the same plane. I have. On the upper surface of the collection unit 1, a storage space 6 is provided in a place other than the blower unit 102.

  In FIG. 3, the blower 3 in the blower unit 102 is a casingless turbofan 7, and the blade diameter of the turbofan 7 is at least twice the round hole diameter of the adapter unit 104 and the blade width is ½ or less. Thus, an air volume of 400 m3 / hour to 600 m3 / hour is driven by the motor 4 at a rotation speed of 1300 rpm or less. Further, a partition plate 8 is firmly fixed to the air blowing unit 102 by screws or welding on the surface opposite to the suction side of the turbofan 7. A space 9 is formed on the side opposite to the suction side of the turbofan 7 by the partition plate 8, and an opening hole 10 is opened so that the partition plate 8 and the space 9 communicate with each other. The end portion of the partition plate 8 has an R shape 11 and is curled when the partition plate 8 is a metal plate such as a sheet metal. An obliquely inclined swash plate 12 is firmly fixed to the lower surface of the blower unit 102 on the blower 3 side by screws or welding.

  Next, the flow of wind will be described. As shown in FIG. 4, by driving the turbo fan 7, waste gas, oil smoke, water vapor, and odor generated by cooking and the like are sucked from the collection unit 1 that has become negative pressure. The airflow sucked in the collection unit 1 flows into the turbo fan 7 through the suction chamber 2 in the axial direction of the motor 4, changes the direction of the airflow in the circumferential direction by the turbo fan 7, and is almost uniform over the entire circumference. Blow out. The blown airflow flows along the partition plate 8, the first air 13 directly flowing into the adapter portion 104 and the partition plate 8 pass through the opening hole 10, the airflow is turned by the R shape 11, passes through the space 9, and the adapter portion 104. The first air and the second air merge in the vicinity of the adapter unit 104 and are discharged from the adapter unit 104. For this reason, the angle of the air flowing into the adapter unit 104 becomes equal regardless of whether the adapter unit 104 is attached to the upper surface or the left or right surface of the blower unit 102, so the side close to the adapter unit 104 directly flows into the adapter unit 104. The first air 13 that is farther from the adapter portion 104 becomes the second air 14 that flows from the partition plate 8 through the opening hole 10, through the space 9, and into the adapter portion 104. In addition, the vicinity of the adapter part 104 is equivalent to the width dimension of the opening hole 10. Further, an air passage partition 15 is attached in the vicinity of the adapter portion 104 so that the first air 13 and the second air 14 do not interfere with each other.

  Next, the sucked oil smoke and the flow of oil will be described. As shown in FIG. 5, a part of the oil sucked by the turbo fan 7 adheres to the turbo fan 7, and the rest is included in the airflow and blows out from the turbo fan 7 as it is. The oil adhering to the turbo fan 7 is blown away from the turbo fan 7 by centrifugal force because the blade diameter is twice the duct diameter. The oil blown off by this centrifugal force and the oil contained in the airflow adhere to the inner wall of the blower unit 102, become oil droplets, and fall to the lower surface side of the blower unit 102 due to gravity. The oil droplets are collected in one place by the swash plate 12, and are collected and discarded regularly by an oil catch or the like.

  In the above configuration, the trapping section 1 is thinned to secure the storage space of the kitchen, but the mounting surface of the adapter section is not limited, and the airflow is reduced by minimizing the pressure loss in the blower unit 102. The range hood can be provided, the generated noise is reduced, and the oil is not easily accumulated in the blower unit 102.

(Embodiment 2)
Moreover, as shown in FIG. 6, the airway partition 15 and the adapter part 104 are made into an integral structure.

  With the above configuration, when the adapter unit 104 is installed, the air channel partition 15 can be installed without fail, so that it is possible to provide a range hood with a relatively simplified mounting structure and improved workability. .

(Embodiment 3)
Further, as shown in FIG. 7, the air passage partition 15 is configured as a part of the outline of the blower unit 102.

  With the above configuration, the outer shell of the blower unit 102 where the adapter unit 104 is mounted rotates, and the outer shell can be used as it is as the air channel partition 15, so that the mounting structure is relatively simplified and the workability is improved. A range hood capable of eliminating waste generated from the blower unit 102 can be provided.

(Embodiment 4)
Further, as shown in FIG. 8, a porous material 16 is attached to the inner wall of the blower unit 102.

  With the above configuration, it is possible to provide a range hood that can reduce the resonance noise determined by the volume of the blower unit 102 by a noise source generated when the turbo fan 7 is driven.

  The range hood according to the present invention can eliminate the restriction on the mounting surface of the adapter part, does not deteriorate the air flow-static pressure characteristics and noise characteristics, can reduce the thickness of the blower device, and has the main body installed in the kitchen. It is sometimes useful as a range hood that can widen the upper surface space of the collection part, does not accumulate oil inside the blower device, absorbs resonance sound, and reduces noise. .

Side sectional view of Example 1 of the present invention The perspective view which attached the adapter part to the side Side sectional view of the blower unit Side sectional view showing the flow of the same wind Side sectional view showing the flow of the oil The perspective view of the airway partition of Example 2 of this invention Side sectional view of the airway partition of Example 3 of the present invention Side sectional view of the blower unit of Example 4 of the present invention Side sectional view showing the structure of a conventional range hood

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Collection part 2 Suction chamber 3 Blower 4 Motor 5 Suction port 6 Storage space 7 Turbo fan 8 Partition plate 9 Space 10 Open hole 11 R shape 12 Swash plate 13 First air 14 Second air 15 Air path partition 16 Porous material 101 Main body 102 Blower unit 103 Outer shell 104 Adapter portion 105 Rectifier plate 106 Inclined surface 107 Side plate 108 Horizontal portion 109 Inclined portion 110 Inlet 111 Inlet channel

Claims (10)

A blowing unit having a rectangular parallelepiped outer shell configured to communicate with the suction unit and the suction device having a suction chamber communicated with the collection unit and the subsequent stage of the collection unit; in the configuration we arranged adapter portion having an opening of a round hole shape evacuating the sucked air to the outer periphery of the blower unit by the blower, the axial direction of the shaft of the motor loaded with the blower unit to the upper surface of the collector Is a horizontal fan , the blower is a casingless turbofan, and one of the four surfaces of the outer shell parallel to the shaft of the motor and the suction unit disposed in the suction chamber on the lower surface of the blower unit comprising a mouth, a first side one of the other three sides of the shell, with the adapter section provided to the blower, the said sucked by collecting portion air Range hood, wherein Rukoto from write port via the suction chamber to flow into the axial direction of the shaft of the motor to the turbo fan. The range hood according to claim 1, wherein the blade diameter of the turbo fan is set to be not less than twice the round hole diameter of the adapter portion, and the blade width is set to be not more than 1/2 times the round hole diameter. In the blower unit, a partition plate is installed on the side opposite to the suction of the blower to provide a blower back space, and the air exhausted from the blower directly flows into the adapter part and the air exhausted from the blower The range hood according to claim 1, further comprising a second air passage that flows into the adapter portion through the fan back space. 4. The range hood according to claim 1, wherein the round hole center axis of the adapter portion and the shaft axis of the motor are on the same plane and are substantially perpendicular. The range hood according to any one of claims 1 to 4, wherein a swash plate having an inclination with respect to a horizontal plane is added to the inside of the suction plane of the blower unit. 6. The range hood according to claim 1, wherein an end portion of the partition plate has an R shape. The range according to any one of claims 1 to 6, wherein an air passage partition is provided so that the first air of the first air passage and the second air of the second air passage flowing into the adapter section do not interfere with each other. hood. The range hood according to any one of claims 1 to 7, wherein the air passage partition is the same component as the adapter portion. The range hood according to any one of claims 1 to 7, wherein a part of the outer shell of the blower unit serves as an airway partition. The range hood according to any one of claims 1 to 9, wherein the inner wall material of the blower unit is a porous material.

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