JP2012225599A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the replacement of a propeller-type deep range hood by a thin range hood that has excellent design and is superior in cleanability.SOLUTION: A shaft direction of a motor 5 is inclined obliquely downward relative to a horizontal direction or a suction direction, a pressure of air from a blower 4 is increased in a chamber 6 disposed in a fan unit 8, and an adapter 9 is disposed on the back side of the fan unit 8. The air whose pressure is increased in the chamber 6 in the fan unit 8 thereby is directly exhausted from the adapter 9 installed on an opening provided on the back side of the fan unit 8. As a result, there are provided a ventilation system facilitating the replacement of the propeller-type deep range hood by the thin range hood having excellent design and being superior in cleanability.

Description

  The present invention relates to a range hood that collects oily smoke generated during cooking in a kitchen and exhausts it outdoors.

  2. Description of the Related Art Conventionally, as this type of range hood, a structure that reduces the noise generated by reducing the pressure loss and reducing the thickness of the product while securing the design and the storage space of the kitchen is known. (For example, refer to Patent Document 1).

  Hereinafter, the configuration of the range hood will be described with reference to FIG.

  As shown in the figure, a thin type main body 101 includes a hood 104 having a suction port 102 and an opening 103, and a fan unit 108 including a chamber 105, a blower 106, and a motor 107 on the upper surface thereof. The left surface or the right surface includes an adapter 109 that exhausts air sucked from the suction port 102.

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

  As the blower 106 attached to the motor 107 rotates, oily smoke generated during cooking in the kitchen sucked in the suction port 102 is carried to the adapter 109 through the opening 103, the chamber 105, and the blower 106, and then to the outside through the duct. Exhausted. At that time, pressure loss is minimized to ensure air volume and reduce noise.

Japanese Patent No. 4274022

  In such a conventional range hood, the adapter 109 is on the upper surface, the left surface, or the right surface of the fan unit 108, and the air sucked from the suction port 102 is exhausted using a duct connected to the adapter 109. On the other hand, there is a propeller type fan 106 in the range hood, the configuration is that a filter is installed at the bottom of the box-shaped hood, and the fan 106 is attached to the center of the range hood in the height direction. A square hole with a side of 320 mm is attached to the wall on the back side. The propeller type range hood is also required to be designed and cleanable in recent years, but the propeller type range hood cannot increase the static pressure due to the fan characteristics, so it must be replaced with a sirocco fan or a turbo fan. is there. However, since the sirocco fan has a casing in the chamber 105 and the discharge outlet of the casing is directly fixed to the top surface of the hood, it is located at the center of the rear side of the range hood. There are problems in that the duct connection to a certain opening cannot be made, the air volume cannot be secured by excessive bending, and the noise characteristics are deteriorated. Similarly, when replacing with a turbofan range hood, duct connection to the opening located in the center on the back side is not possible, air volume cannot be secured due to excessive bending, and noise characteristics are deteriorated. Had problems.

  Therefore, the present invention solves the above-described conventional problems, and provides a range hood that can be easily replaced with a thin range hood excellent in design and cleanability from a propeller type deep range hood. Objective.

  In order to achieve this object, the present invention has a hood having a suction port on the lower surface and an opening on the upper surface, a fan unit including a fan having a rectangular parallelepiped outer shape communicating with the opening, and a motor. In the configuration in which an adapter having an opening for exhausting the air sucked from the suction port on the lower surface of the hood is disposed on the outer shell of the fan unit, the shaft direction of the motor is set in a horizontal direction or a suction direction. Inclined downward, the air from the blower is increased in pressure in a chamber provided in the fan unit, and the adapter is provided on the back side of the fan unit. To achieve this goal.

  According to the present invention, the fan unit includes a hood having a suction port on the lower surface and an opening on the upper surface, a fan having a rectangular parallelepiped outer shape communicating with the opening, and a motor, and the outer unit of the fan unit. In the configuration in which an adapter having an opening for exhausting air sucked from the suction port on the lower surface of the hood is disposed, the motor shaft direction is inclined obliquely downward with respect to the horizontal direction or the suction direction, and the blower Pressure is increased in the chamber provided in the fan unit, and the adapter is provided on the back side of the fan unit, thereby increasing the pressure in the chamber in the fan unit. The air can be exhausted directly from the adapter installed in the opening provided on the back of the fan unit. In addition, since ducts cannot be connected to holes in low positions or duct piping due to excessive bending can be prevented, airflow-static pressure characteristics and noise characteristics are not deteriorated. The effect that it can be easily replaced with a thin range hood with excellent design and cleanability can be obtained.

Side surface sectional drawing of Example 1 of this invention Front view when the casingless blower is a turbo fan Rear view when the same adjustment plate is placed and the adjustment plate and adapter fixing holes are elongated holes Side view of a conventional range hood

  A range hood according to claim 1 of the present invention has a hood having a suction port on the lower surface and an opening on the upper surface, a fan unit having a rectangular parallelepiped outer shape communicating with the opening, and a fan unit. In the configuration in which an adapter having an opening for exhausting air sucked from the suction port on the lower surface of the hood is arranged on the outer shell of the fan unit, the shaft direction of the motor is obliquely below the horizontal direction or the suction direction. And the pressure is increased in the chamber provided in the fan unit, and the adapter is provided on the back side of the fan unit. As a result, the air whose pressure has been increased in the chamber in the fan unit can be directly exhausted from the adapter installed in the opening provided on the back surface of the fan unit. In addition, since ducts cannot be connected to holes in low positions or duct piping due to excessive bending can be prevented, airflow-static pressure characteristics and noise characteristics are not deteriorated. There is an effect that it can be easily replaced with a thin range hood with excellent design and cleanability.

  Further, the fan unit may be a casingless turbo fan, and a motor may be fixed and a partition plate that divides the chamber into two may be provided. This eliminates the wall for fixing the motor by providing an exhaust hole on the back of the fan unit, but providing the partition plate makes it possible to fix the motor even if there is a hole on the back. . In addition, since the flow in the chamber is rectified by the partition plate, the air volume can be increased and noise can be reduced, so the motor can be fixed, and the flow in the chamber can be rectified to increase the air volume and reduce noise. There is an effect that it can be achieved.

  In addition, the adapter opening provided in the fan unit is enlarged, an adjustment plate provided with an adapter opening between the adapter and the fan unit is arranged, and the fixing hole of the adapter and the adjustment plate is a long hole. It may be configured as follows. As a result, the adapter is moved and fixed in the longitudinal direction of the long hole, so that the mounting property can be improved.

  Moreover, you may make it the structure that the fixing hole of the adjustment board was enlarged and it fixed with the washer. As a result, the adapter can be freely moved within the range of the hole size, so that the mounting property can be further improved.

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

(Embodiment 1)
As shown in FIGS. 1-3, the range hood of Embodiment 1 of this invention is the inlet 1 for inhaling the exhaust gas, oil smoke, water vapor | steam, odor, etc. which were generated at the time of cooking etc. in a kitchen from the lower side. A hood 3 composed of an opening 2 on the upper surface of the suction port 1, a blower 4, a motor 5, and a chamber 6 are built in, connected to the opening 2, and a fan unit 8 composed of a rectangular parallelepiped outline 7 such as a sheet metal The fan unit 8 includes an adapter 9 for exhausting waste gas or the like sucked from the suction port 1 on the back side. On the upper surface of the hood 3, there is a case where a place other than the fan unit 8 is used as a storage space. The shaft axis of the motor 5 is in the horizontal direction or is inclined obliquely downward with respect to the suction direction so that the exhaust gas or the like can be sucked into the blower 4 even a little. The fan unit 8 may have a rectifying plate 13 attached to a corner portion to facilitate the flow of air, and may be casingless. In the case of casingless, if the blower 4 having the turbo fan 14 is used, the wind can be sent not only in one direction but also in all directions, so that pressure and air volume can be secured. In addition, although it described as the thing of the turbo fan 14 here, the thing of another shape may be sufficient. A motor mounting plate 11 for fixing the motor 5 is provided between the front surface and the back surface of the fan unit 8. The motor mounting plate 11 is fixed to the fan unit 8 using the mounting legs 12. It may be attached to any surface of the unit 8, and it is further preferable that a pressure loss is avoided as much as possible, for example, a surface on which the wind hits in the air passage becomes the plate thickness surface of the mounting leg 12. In addition, when the blower 4 is configured to send wind in the circumferential direction like the turbo fan 14, the motor mounting plate 11 and the back surface can be obtained by making the size of the motor mounting plate 11 larger than the blade diameter of the blower 4. An open space can be created between them, and the flow in the chamber 6 can be rectified to improve air flow characteristics. Further, by replacing the motor mounting plate 11 with the partition plate 15 that divides the fan unit 8 into two, the motor 5 can be fixed to the partition plate 15, and an open space can be formed between the partition plate 15 and the back surface. The flow inside can be rectified, and the adapter 9 can be easily attached to the back. The adapter 9 is attached directly to the opening on the back side of the fan unit 8 or through the adjusting plate 10 and has a shutter for preventing a backflow from the outside air. The adapter 9 has a frame for a round duct or a propeller ventilation fan. -There are square shaped hood adapters and square adapters for shallow range hoods, making it easy to replace the conventional type, and the discharge opening can be enlarged to ensure air volume and reduce noise.

  In addition, if the size of the opening on the back surface is large and the size of the adjustment plate 10 is fixed, only the shape of the adjustment plate 10 can be changed so that the fan unit 8 can be standardized to support various types of adapters 9. it can. By making the hole for fixing the adapter 9 and the adjusting plate 10 into a long hole, the position of the adapter 9 can be adjusted, so that it is easy to match the current adapter 9. For example, the adapter 9 can be adjusted to a position in which the adapter 9 can be freely adjusted vertically and horizontally by setting the elongated hole of the adapter 9 in the vertical direction and the elongated hole in the adjustment plate in the horizontal direction. Further, the position of the adapter 9 can be adjusted freely in the vertical and horizontal directions even if a method of enlarging the fixing hole of the adjusting plate and pressing it with a washer is adopted.

  Next, the flow of wind will be described. As shown in FIG. 1, when the motor 5 is driven, the blower 4 fixed to the motor 5 rotates, and the waste gas, oily smoke, water vapor, and odor generated by cooking and the like are from the suction port 1 that has become negative pressure. Inhaled. The airflow sucked through the suction port 1 flows into the blower 4 in the axial direction of the motor 5 through the opening 2 and the chamber 6, and the direction of the airflow is changed in the circumferential direction by the blower 4. Thereafter, the rotational direction of the airflow changes by 180 ° on the top, bottom, left and right surfaces of the chamber 6, moves to the back surface of the motor mounting plate 11, and is exhausted to the outside through a duct through the adapter 9.

  According to such a configuration, by providing an adapter on the back side of the fan unit, the hood having a suction port on the lower surface and an opening on the upper surface, and a fan and motor having a rectangular parallelepiped outline communicating with the opening are configured. A fan unit, and an adapter having an opening for exhausting air sucked from the suction port on the lower surface of the hood on the outer wall of the fan unit, and the motor shaft direction in the horizontal direction Alternatively, the fan unit is inclined obliquely downward with respect to the suction direction, the pressure of the air from the blower is increased in a chamber provided in the fan unit, and the adapter is provided on the back side of the fan unit. Is a casingless turbo fan, the motor is fixed, and the chamber is divided into two parts In addition, the opening for the adapter provided in the fan unit is enlarged, an adjustment plate provided with an opening for the adapter is arranged between the adapter and the fan unit, and the fixing hole for the adapter and the adjustment plate is provided. Air that was increased in pressure in the chamber inside the fan unit was installed in the opening provided on the back of the fan unit by making it a long hole and increasing the fixing hole of the adjustment plate and holding it with a washer. It can be exhausted directly from the adapter. In addition, ducts cannot be connected to holes at low positions, and duct piping due to excessive bending can be prevented, so airflow-static pressure characteristics and noise characteristics are not deteriorated. By providing this hole, the wall for fixing the motor is eliminated, but by providing the partition plate, the motor can be fixed even if there is a hole in the back surface. In addition, since the flow in the chamber is rectified by the partition plate, the air volume can be increased and noise can be reduced, and the adapter can be fixed by moving it in the longitudinal direction of the slot. It can be moved freely, and it is easy to replace the propeller-type deep range hood with a thin range hood with excellent design and cleanability, and the motor can be fixed to rectify the flow in the chamber. As a result, the air volume can be increased and the noise can be reduced, and the attachment can be improved.

  The range hood according to the present invention does not deteriorate the airflow-static pressure characteristics and noise characteristics when changing an old product to a new type with improved design and careability, and it can also be installed flexibly. It is useful as a possible range hood.

DESCRIPTION OF SYMBOLS 1 Suction port 2 Opening 3 Hood 4 Blower 5 Motor 6 Chamber 7 Outer 8 Fan unit 9 Adapter 10 Adjustment plate 11 Motor mounting plate 12 Mounting leg 13 Rectification plate 14 Turbo fan 15 Partition plate

Claims (4)

A hood having a suction port on the lower surface and an opening on the upper surface, a fan unit having a fan and a motor having a rectangular parallelepiped outer shape communicating with the opening, and a lower surface of the hood on the outer surface of the fan unit. In the configuration in which an adapter having an opening for exhausting air sucked from the suction port is arranged, the motor shaft direction is inclined downward in the horizontal direction or the suction direction, and the air from the blower is sent to the fan. A range hood, wherein pressure is increased in a chamber provided in the unit, and the adapter is provided on the back side of the fan unit. 2. The range hood according to claim 1, wherein the fan unit is a casingless turbo fan, and a partition plate for fixing the motor and dividing the chamber into two parts is provided. The opening for the adapter provided in the fan unit is enlarged, an adjustment plate with an opening for the adapter is arranged between the adapter and the fan unit, and the fixing hole for the adapter and the adjustment plate is a long hole. The range hood according to claim 1 or 2. The range hood according to claim 3, wherein a fixing hole of the adjustment plate is enlarged and fixed by a washer.

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