JP3014160U - Forced exhaust type range hood - Google Patents

Abstract

(57) [Abstract] [Purpose] A forced supply / exhaust type range hood with a shutter structure that can control the shutter that opens and closes the exhaust port and the air supply port with a single drive source and save space and cost. To provide. [Structure] An air supply / exhaust unit 3 in which an exhaust fan 6 and an air supply fan 5 are arranged back to back is housed in a hood 1 having an open lower surface, and an exhaust port 8 and an air supply port 9 of the air supply / exhaust unit are provided. A shutter 13 is provided slidably arranged side by side so as to simultaneously open and close the exhaust port and the air supply port and open only the exhaust port over both ports, and the shutter is movable by a single motor 14. And

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a forced air supply / exhaust type range hood, and more particularly, to a shutter structure provided in an air supply port for supplying outside air into a room and an exhaust port for discharging hot air, combustion gas, etc. generated by cooking to the outside.

[0002]

[Prior art]

 Contaminated air such as hot air and combustion gas generated by cooking is sucked and exhausted by the rotation of the fan, and fresh outdoor air is introduced into the hood by the rotation of the fan and supplied indoors through the opening provided in the hood. There is a forced supply / exhaust range hood. A shutter is attached to each of the forced air supply / exhaust type range hoods so that the exhaust port and the air supply port can be closed when the outside air is not introduced into the room even when the range hood is not used. In addition, each shutter has a separate drive system, and the opening / closing control is performed separately.

[0003]

[Problems to be solved by the device]

 For this reason, the shutter structure of the conventional forced air supply / exhaust range hood described above has a separate drive system, thereby taking up space and increasing the size of the range hood as a whole and providing two drive systems. There is a problem that the cost becomes high.

The present invention has been made in view of the problems of the above-described conventional technique. The purpose of the present invention is to control a shutter for opening and closing an exhaust port and an air supply port with a single drive source. The purpose of the present invention is to provide a forced air supply / exhaust type range hood with a shutter structure that can save space and reduce cost.

[0005]

[Means for Solving the Problems] The technical means taken by the present invention to achieve the above-mentioned object is to provide a supply fan in which an exhaust fan and an air supply fan are arranged back to back in a hood having an open lower surface. The exhaust unit is housed, the exhaust port and the air supply port of the air supply / exhaust unit are installed side by side, and the exhaust port and the air supply port are simultaneously closed across both ports, and only the exhaust port is opened. The shutter is slidable, and the shutter is movable by a single motor. Examples of the mechanism for sliding the shutter by the rotation of the motor include a rack and pinion, a ball screw mechanism, a link mechanism and the like.

In the air supply / exhaust unit housed in the hood, the fan casings having the fans are combined back to back, and a motor is arranged between the casings to fix both fans to the rotation shaft of the motor. Or the inside of one fan casing is divided into two chambers by a partition plate, the motor is supported by the partition plate, and the fans are housed in the respective chambers, and both fans are rotating shafts of the motor. It may be fixed on the surface of the body.

A single shutter for opening and closing the exhaust port and the air supply port arranged in parallel in the air supply / exhaust unit simultaneously closes the exhaust port and the air supply port, opens the exhaust port, and closes only the air supply port. It is formed in a shape. To give an example of the shape of the shutter, an exhaust port shutter part and an air supply port shutter part are provided in parallel so as to close the exhaust port and the air supply port at the same time, and the intake port shutter part is also provided. Is a substantially L-shaped flat surface in which a shutter portion having a size such that only the air supply port is closed when the shutter is slid in the direction in which the exhaust port is opened is continuously provided. In addition, the shutter has a rectangular shape in plan view, and a through hole is formed to open the exhaust port when the air supply port is closed along the moving direction of the shutter passing through the part of the shutter that closes the exhaust port. The form etc. are mentioned.

[0008]

[Action]

 According to the above means, when the range hood is turned on, the motor that operates the shutter is driven to slide the shutter to open the exhaust port and the air supply port, and when the range hood is turned off, the rotation direction of the motor is changed. In the opposite direction, the shutter slides in the opposite direction, closing both the exhaust port and the air supply port. When the range hood is on and air supply is not needed, the shutter is slid by controlling the rotation of the motor to close only the air supply port.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a hood having an open lower surface, a box-shaped hood main body 1a having a front surface and a lower surface opened by a metal flat plate, and its hood. The hood body 1a is composed of a front plate 1b which is detachably connected to the front surface of the hood body 1a, and the air supply / exhaust unit 2 is housed and installed in the hood 1.

The air supply / exhaust unit 2 is composed of a casing 3, a motor 4, an air supply fan 5 and an exhaust fan 6, and the casing 3 is divided into a front and a rear chamber by a central partition plate 7. An opening slightly larger than the outer diameter of the fan is formed in each of the front surface of the front chamber 3a and the rear surface of the rear chamber 3b, and a bell mouth is detachably attached to the openings. Further, the motor 4 is supported by the partition plate 7 in the center, the exhaust fan 6 is attached to the front part of the rotary shaft of the motor 4, and the air supply fan 5 is attached to the rear part thereof to suck in the contaminated air in the room. Exhaust gas and the function of suctioning and introducing outdoor air into the room are configured to be performed by one motor. For introducing the outdoor air, the intake 16 opened on the wall surface of the building and the space 17 communicating with the rear chamber 3b in the hood 1 are connected by the duct 18, and the air supply fan 5 housed in the rear chamber 3b is connected. It is configured to be forced by rotation. The connection on the hood side of the duct 18 may be directly connected to the bell mouth (suction port) of the rear chamber 3b.

Further, the discharge port of the casing 3 is also divided into front and rear by the partition plate 7 so that the exhaust port 8 of the front chamber 3a and the air supply port 9 of the rear chamber 3b are formed in parallel. The exhaust duct 10 and the air supply duct 11 are fixedly connected to a through hole formed on the upper surface of the hood 1 so as to correspond to the exhaust port 8 and the air supply port 9, and the exhaust port 8 and the air supply port 9 are connected to each other. A shutter device 12 is installed so that the opening / closing of the exhaust port 8 and the air supply port 9 is controlled. The other end of the air supply duct 11 is connected to an air chamber 19 provided in the front plate 1b, and is configured to supply air to the room through a passage 20 communicating with the air chamber 19. The outlet to the room is not limited to the illustrated form, but may be provided in the upper part of the front plate 1b.

The shutter device 12 includes a shutter 13 and a motor 14 for operating the shutter 13 and a rack 15 a and a pinion 15 b for sliding the shutter 13 by the rotation of a motor 14 of the shutter 13. The shutter 13 is configured of means 15 and simultaneously closes the exhaust port 8 and the air supply port 9 at the same time, and simultaneously opens the exhaust port 8 and closes the air supply port 9 to perform three operations. It is formed in a shape that allows it. The rack 15a of the motion converting means 15 is attached to the shutter 13, and the pinion gear 15b is fixed to the rotating shaft of the motor 14. As an example of the shape of the shutter 13, the exhaust port shutter portion 13a and the air supply port shutter portion 13b are provided in parallel so that the exhaust port 8 and the air supply port 9 are closed or opened at the same time. The air outlet shutter portion 13b has a substantially L-shaped planar shape in which an auxiliary shutter portion 13c having a size such that only the air inlet 9 is closed when the shutter is slid in the direction in which the air outlet 8 is opened is continuously provided.

Further, as shown in FIG. 4, the shutter 13 is formed in a rectangular shape in plan view, and the shutter is provided with an exhaust port shutter portion 13a and an air supply port so that the exhaust port 8 and the air supply port 9 are closed or opened at the same time. The opening shutter portion 13b is provided in parallel, the through hole 21 for opening the exhaust port 9 is opened in the side portion of the exhaust port shutter portion 13a, and the exhaust air is formed in the side portion of the air supply port shutter portion 13b. The auxiliary shutter portion 13c may have a size such that only the air supply port 9 is closed when the shutter is slid in the direction of opening the port 8.

Next, the operation of the shutter device 12 described above will be described with reference to FIG. 3. When the range hood is turned on to operate it, the motor 14 is also turned on accordingly, and the pinion gear 15b rotates, thereby causing the rack 15a to mesh with each other. Is slid to move both the exhaust port shutter section 13a and the air supply port shutter section 13b from the exhaust port 8 and the air supply port 9 into an open state, so that exhaust and air supply are performed. (See (a) of FIG. 3) Then, when the operating range hood is stopped, the motor 14 is operated in the direction opposite to that when it is turned on to move the shutter 13 leftward in the drawing, and the exhaust port 8 is opened. And the air supply port 9 are closed at the same time. This prevents outside air from entering the room through the exhaust duct 10 and the supply air duct 18. (See (b) in Fig. 3) Also, when air supply is not required when operating the range hood, for example, when the room is cooled in the summer and you do not want to put hot air outdoors, or in the winter When the shutter is warmed up and you do not want to enter cold outdoor air, the motor of the shutter device is activated to move the shutter 13 further leftward from the fully closed state in Fig. 3 (b). Closes the air supply port 9, and the exhaust port 8 is opened. (Refer to (c) of FIG. 3) Since the embodiment shown in FIG. 4 also performs the same operation as that of FIG. 3 described above, its explanation is omitted.

[0015]

[Effect of device]

 The forced supply / exhaust type range hood of the present invention can control the opening / closing of the shutter across both the exhaust port and the air supply port by one motor with the configuration described in claim 1. Thereby, the installation space of the shutter device may be small, and if the size of the hood is the same, a large space that contributes to collection can be secured as compared with the case where the conventional shutter device is installed. Therefore, it is possible to provide a forced air supply / exhaust type range hood that can realize energy saving, small space, and cost reduction. Further, in the case of the configuration described in claim 2, there is an advantage that the shutter can be formed in a minimum size without waste, which can contribute to a small space and cost reduction.

[Brief description of drawings]

FIG. 1 is a vertical side view showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a cross-sectional plan view showing the operation of the shutter.

FIG. 4 is a cross-sectional plan view showing an operation in a modified example of the shutter.

[Explanation of symbols]

 1 ... Hood 2 ... Air supply / exhaust unit 3 ... Casing 4 ... Motor 5 ... Air supply fan 6 ... Exhaust fan 8 ... Exhaust port 9 ... Air supply port 12 ... Shutter device 13 ... Shutter 13a ... Exhaust port shutter part 13b ... Shutter part 13c for air inlet ... Auxiliary shutter part 21 ... Through hole

Claims (3)

[Scope of utility model registration request] 1. An air supply / exhaust unit, in which an exhaust fan and an air supply fan are arranged back to back, is housed in a hood having an open lower surface, and an exhaust port and an air supply port of the air supply / exhaust unit are arranged in parallel. , A shutter for closing the exhaust port and the air supply port at the same time and opening only the exhaust port is slidably provided across the both ports, and the shutter is made movable by a single motor, and the exhaust port and the air supply port are connected. A forced air supply / exhaust range hood that has three types of operations: simultaneous opening of the air vents, simultaneous closing of the air vents, and closing of the air intake vents only. 2. The shutter has a substantially L-shape in plan view, in which an auxiliary shutter portion for closing the exhaust port and the air supply port at the same time and for closing the air supply port when the exhaust port is opened is connected in series. The forced air supply / exhaust type range hood according to claim 1. 3. The shutter has a rectangular shape in a plan view, an exhaust port and an air supply port are closed at the same time, and a through hole is formed to open the exhaust port when the air supply port is closed. Forced exhaust type range hood as described.