KR20020076995A - Range hood - Google Patents

Abstract

PURPOSE: To provide a range hood of good appearance by preventing the inside of the hood and filters from being seen when the range is not used. CONSTITUTION: The hood 1 consists of a smoke suction part 1a having an opening 5 at the lower surface thereof, and a body 1b. The smoke suction part 1a is fixed with a filter 2 and a blower 3. A cover 4 is rotatably attached to the body 1b so that it can be moved up and down for closing the opening 5 being horizontally positioned and for opening the opening 5 being vertically positioned. The cover 4 is rotated up and down by an electric motor 33, by which the opening 5 is closed by the cover 4 when the range is not used. Thus the inside of the smoke suction part 1a (inside of the hood) and the filter 2 are prevented from being seen to provide a good appearance to the range hood.

Description

Range hood {Range hood}

The present invention relates to a stove hood having a device for cleaning the inside of a hood such as a hood or a filter, which sucks gas such as steam or steam generated at the same time as air and sucks it out to the outside. It is about.

As an example of a stove hood, a blower and a filter are installed in a hood for sucking gas generated during cooking, and a blower is driven to suck gas generated during cooking together with air, and to filter oil components in the gas generated during cooking. It is known to filter the oil into air with little oil, and then discharge the air to the outside through the exhaust duct.

In addition, a centrifugal force type range hood without a filter is known.

The range hood is generally installed above the range. In addition, the hood of the stove hood opens almost the entire lower surface of the hood to efficiently suck gas generated during cooking, and the inside of the hood such as a hood or a filter is visible from the opening when the hood is looked at.

Inside the hood, oil components in the gas generated during inhalation of cooking are attached.

As described above, the conventional stove hood has an internal appearance in which the hood is attached with oil components, etc., by people who cook with the stove, and the appearance is not beautiful. In particular, when there is no partition between the cooking chamber and the dining room, it is not preferable because the inside of the hood, which does not look beautiful even when eating, is seen.

Therefore, an object of the present invention is to solve the above-described problem, and to provide a range hood in which the inside of the hood is not visible when the range hood is not used.

The present invention includes a hood having an opening at a lower surface thereof, a blower for sucking gas discharged from cooking at the same time as air from the opening and discharging the gas to the outside, and a cover for opening and closing the opening of the hood. It is a range hood, characterized in that movable across the closed position and the open position for opening the opening.

According to the above structure, since the opening of the hood is opened by moving the cover to the open position, the gas generated during cooking can be discharged to the outside by driving the blower.

Since the opening of the hood is closed by moving the cover to the closed position, the hood inside such as the inner surface of the hood is not visible. Therefore, the inside of the hood in an unsightly state due to the attachment of oil components, etc., is invisible, and the appearance is beautiful.

In addition, the hood and cover are integrated to create a neat appearance.

In the above configuration, when the cover is in the open position, the cover is in a longitudinal direction continuous with the rear edge of the opening of the hood.

According to this configuration, when the cover is in the open position, the cover has a function as a guide of the combustion gas or the rising airflow, so that the gas generated during cooking can be efficiently sucked up to assist the smooth rise of the combustion gas. There is a number.

In the above configuration, the cover is moved to the closed position and the open position by the drive device so that the drive device and the blower are synchronously driven to control the cover so that the cover is in the open position when the stove hood is in use and the cover is not used when the range hood is not used. To move to the closed position.

According to this configuration, since the cover is in the open position when the stove hood is used, and the cover is in the closed position when the stove hood is used, only the operation operation of the stove hood is required and the operation for moving the cover is unnecessary.

In the above configuration, the drive device includes an electric motor for moving the cover to the closed position and the open position, and a rotational force limiting mechanism for limiting the maximum value of the force for moving the cover by the electric motor.

According to this configuration, when the cover is moved to the closed position and the open position, a person's hand intentionally or accidentally touches the cover, or the cover touches a cooking utensil placed on the stove, thereby preventing the cover from moving. If the force for moving the cover exceeds the maximum value, the cover does not move with the rotational force of the electric motor by the torque limiting mechanism. Therefore, it is possible to ensure the safety of the person and at the same time prevent damage to the drive device, the cover.

In the above configuration, a cleaning apparatus is provided for spraying and washing the cleaning liquid into the hood, such as the inner surface of the hood 1.

According to this configuration, the cleaning liquid can be sprayed into the hood with the cover in the closed position to clean the adhered oil components and the like. Moreover, the flushing cleaning liquid is prevented from scattering from the opening to the surroundings by the cover. In the above configuration, the cleaning apparatus includes a cleaning liquid spraying unit for spraying the cleaning liquid into the hood, and a cleaning liquid supplying unit for pumping the cleaning liquid into the cleaning liquid spraying unit, wherein the cleaning liquid supply unit supplies the cleaning liquid tank and the tap water to the cleaning liquid tank. Water supply means, and a heater for applying hot water to the cleaning liquid in the cleaning liquid tank and a pump for pumping the cleaning liquid in the cleaning liquid tank to the cleaning liquid spraying unit, and the cleaning liquid sprayed into the hood is closed along the cover in the closed position. It is being recovered to the tank.

According to this structure, a tap water can be used as a washing | cleaning liquid.

In addition, since the cleaning liquid is spouted after becoming hot water, the oil component or the like adhered to the inside of the hood can be cleaned even if no detergent is mixed into the cleaning liquid. Furthermore, the cleaning liquid in the cleaning liquid tank can be circulated and used.

In the above configuration, a drainage means for draining the cleaning liquid in the cleaning liquid tank to a sewer pipe or a dish is provided.

According to this structure, since the cleaning liquid which became dirty in the cleaning liquid tank can be drained, and a new tap water can be supplied, the dirty cleaning liquid can be replaced.

EXAMPLE

As shown in Fig. 1, a hood 1 for sucking gas generated during cooking, a filter 2 and a hood 1 for attaching and detaching freely in the hood 1 to filter oil components in the gas, are provided. The blower 3 which sucks gas generated at the time of cooking into the hood 1 at the same time as air and discharges it out through the filter 2, and opens and closes the opening part of the lower surface of the hood 1 A range hood is formed by the cover 4 to be described.

In this embodiment, the cover 4 rotates up and down with respect to the hood 1 to open and close the opening, and the hood 1 and the cover 4 have a shell-like appearance.

The hood 1 is installed above the stove, not shown, on the wall A of the kitchen.

The hood 1 is formed in the smoking part 1a and the main body part 1b.

The main body part 1b is provided in the wall A, and the smoking part 1a is provided in the opposite side to the wall A of this main body part 1b.

The smoking part 1a has a structure in which almost all of the lower surface thereof is opened and a filter 2 is provided therein, and the opening part 5 of the smoking part 1a forms the opening part of the hood 1.

Oil components in the gas generated at the time of cooking are attached to the inner surface of the smoking part 1a and the filter 2 which are inside the hood of the hood 1.

The blower 3 has a structure in which a casing 3a is provided with a fan 3b and an electric motor 3c, and when the fan 3b is rotated in the electric motor 3c, it is cooked in the smoking section 1a. The gas generated at the same time is sucked in with air and discharged through the filter 2 and a duct not shown.

The casing 3a is installed in the smoking section 1a.

The cover 4 is shown in FIG. 1 and has an open position for opening the opening 5 of the smoking section 1a, for example a substantially vertical longitudinal position continuous with the rear edge of the opening 5 and FIG. 2. As shown in the figure, the movement is free over a closed position for closing the opening part 5 of the smoking part 1a, for example, a substantially horizontal and horizontal position, and for example, a rotational movement freely up and down. The cover 4 may be slid over the horizontal position (close position) and the vertical position (open position), not the vertical rotational movement.

The cover 4 is rotated up and down by an electric motor as described later, but may be rotated manually.

In addition, the cover 4 may consist of several cover members instead of a single body, and may completely close the opening part 5 of the smoking part 1a when all the cover members are in the closed position. In this case, for example, it is good to arrange several cover members in the peripheral part of the opening part 5 of the smoking part 1a, and to install the up-and-down rotational motion freely, respectively.

When the hood is not used (when not in use), the cover 4 is closed in the vertical direction (closed position) as shown in Fig. 2 to close the opening 5 (opening of the hood) of the smoking section 1a. In this state, the hood 1 and the cover 4 have the appearance that two shells are closed.

Thereby, the inner surface of the smoking part 1 with the oil component etc. in the gas which generate | occur | produced at the time of cooking, and the filter 2 (inner hood) become invisible. Moreover, the smoking part 1a and the cover 4 are integral, and the appearance is neat, and there is also a clean feeling.

When the stove hood is used, the cover 4 is opened in the longitudinal direction (open position) as shown in Fig. 1, and the cover 4 is brought close to the wall A while opening the opening 5 of the smoking section 1a.

Thereby, by driving the blower 3, the gas generated at the time of cooking can be sucked in and discharged to the outside. Moreover, since the cover 4 has a function as a guide of the combustion gas or the rising airflow, it assists in the smooth rise of the combustion gas, and can efficiently suck the gas generated during cooking.

The smoking part 1a is provided with a cleaning liquid spraying part 6, by which the cleaning liquid is sprayed onto the filter 2 and the inner surface (inside of the hood) of the smoking part 1a, and the oil component and the like can be washed. have.

The cleaning liquid supply part 7 is provided in the main body part 1b, by which the cleaning liquid is pumped to the cleaning liquid spraying part 6, and the cleaning liquid which has spouted to the inner surface of the filter 2 and the smoking part 1a is recovered. The liquid is circulated several times to wash and then drain to the outside. Thus, the washing | cleaning apparatus in a hood is formed by the said washing | cleaning liquid injection part 6 and the washing | cleaning liquid supply part 7.

When a large amount of oil or the like is attached to the filter 2 and the inner surface (inside of the hood) of the smoking section 1a by prolonged use of the range hood, etc. The inside of the hood is cleaned.

As shown in FIG. 2, the opening part 5 of the smoking part 1a is closed with the cover 4 in a horizontal direction. Subsequently, the cleaning liquid is conveyed by the cleaning liquid supply unit 7, and the cleaning liquid is sprayed from the cleaning liquid spraying unit 6 into the hood to clean it.

In this way, even if the cleaning liquid is sprayed into the hood and cleaned, the opening 5 of the smoking part 1a is blocked by the cover 4, so that the cleaning liquid is scattered from the opening 5 to the surroundings of the smoking part 1a. There is no work.

In this embodiment, as described later, the escazion 13 is provided and at the same time, there is a labyrinth minute gap a between the opening 5 of the smoking section 1a and the cover 4, Air can be sucked at the minute intervals, and the cleaning liquid does not leak from the minute interval a when washing.

1 is a longitudinal sectional view of a range hood with the cover in an open position;

Fig. 2 is a longitudinal sectional view of the range hood with the cover in the closed position.

3 is a plan view of the range hood.

4 is an N sub-expanded view of FIG. 1.

5 is a front view of the stove hood body with the lid removed.

FIG. 6 is a cross-sectional view of the U-M of FIG. 5. FIG.

7 is a sectional view of the cover driving apparatus.

8 is a control circuit diagram of the range hood.

Next, the specific structure of each part is demonstrated.

1 and 3, the smoking portion 1a has a box shape in which a lower surface composed of the surface plate 10 and the main surface plate 11 is opened, and the lower surface edge portion lla of the main surface plate 11 is opened. Is bent inward. The lower end surface (lower surface of the smoking part 1a) of the main surface plate 11 is oblique with the front parts higher than the rear parts.

The suction opening 12 is formed in the said surface plate 10, The attachment and detachment of the filter 2 are provided in the lower surface of the periphery of this suction opening 12 freely. Therefore, by opening the opening part 5 with the cover 4 in the longitudinal direction, the filter 2 from the opening part 5 can be attached or detached.

The escacion 13 is provided in the lower part of the front and left and right sides of the said main surface plate 11, respectively.

As shown in FIG. 4, the escazion 13 includes a plate-shaped vertical portion 14 and a pair of mounting protrusions 15 integrally provided on the upper portion of the vertical portion 14, and the space between them. It has the structure which consists of the recessed part 16, The wiring space part 18 continuous in the longitudinal direction is formed by providing the pair of mounting protrusion part 15 in the main surface plate 11 by the vis | 17.

In this wiring space portion 18, an operation panel 70, which will be described later, and an electric wire for connecting each device can be concentrated. Therefore, the electric wire and the like are not exposed to the outside, so the appearance is good. As described above, when the inner surface of the smoking section 1a and the filter 2 are cleaned with the cleaning liquid, the cleaning liquid does not stick to the electric wire or the like.

The escacion 13 provided on the front side and the escacion 13 provided on the side are cut and fitted at 45 ° to their ends, but may be connected using a corner joint.

A downward recessed portion 19 is formed between the vertical portion 14 of the escazion 13 and the peripheral surface lla of the lower surface of the main surface plate 11. When the cover 4 is made horizontal in the transverse direction in the downward recessed portion 19, the mouth wall 27 described later enters the recessed portion 19. As shown in FIG.

As shown in Figs. 1, 3, and 5, the main body portion 1b has a front surface formed of a surface plate 20, left and right side plates 21, a bottom plate 22, and a rear plate 23. It has a box 24, and a lid 25 which is detachably attached to the front part of this box 24.

The main body portion 1b is provided on the rear side of the smoking portion 1a, and the surface plate 20 of the main body portion 1b and the surface plate 10 of the smoking portion 1a are located at the same height. The smoking part 1a and the main body part 1b may be integrated.

The cover 4 is formed in a substantially plate shape in the form of a rectangular plate-shaped substrate 26 and a mouth wall 27 integrally provided at its periphery. The cover 4 is, for example, a single sheet. It is formed by bending a plate and processing it.

A mounting projection 28 is provided on the rear wall 27.

The rear side part of the said cover 4 in the board | substrate 26 is recessed so that the left-right center part may become low, and the return pipe 29 is provided in the left-right center part of the depression.

As shown in FIG. 5, the drive shaft 30 is freely provided by the bearing member 31 between the left and right side plates 21 of the main body portion 1b. The installation projections 28 of the cover 4 are inserted through the cutouts (not shown) formed in the lid 25 and fixedly attached to the drive shaft 30. Therefore, the cover 4 is rotated up and down by rotating the drive shaft 30 forward and reverse, respectively, and made in the horizontal and vertical directions, respectively.

When the cover 4 is rotated in the transverse direction as shown in Fig. 2, the mouth wall 27 enters into the recess 19 as described above.

As a result, each of the mouth walls 27 is covered with the escacion 13, and the lower part of the main surface plate 11 of the smoking part 1a (the lower periphery of the hood) and the mouth wall 27 (cover) of the cover 4 are covered. Since the upper periphery of (4) shows an appearance as one continuous with escazion 13, the smoking part 1a and the cover 4 exhibit the two shell-like appearances described above with a beautiful appearance. .

2 and 4, the mouth wall 27 (upper peripheral portion) of the cover 4 overlaps the outer side of the peripheral surface 11a of the lower surface of the main surface plate 11 of the smoking portion 1a, and the mouth wall. A labyrinth minute gap a is formed between the inner surface of the 27 and the outer surface of the peripheral surface 11a of the lower surface of the main surface plate 11. This fine spacing a is not limited to a maze-shaped one.

As described later, this fine interval a becomes an air passage during the drying operation.

As described above, when the inner surface of the smoking section 1a and the filter 2 are cleaned with the cleaning liquid, the cleaning liquid does not leak out from the above-described fine interval a.

The drive shaft 30 is rotated forward and backward by the drive device 32. The driving device 32 is to rotate the drive shaft 30 forward and backward with an electric motor and to limit the maximum torque transmitted to the drive shaft 30, that is, the force for rotating the cover 4 up and down.

Specifically, as shown in Figs. 5 and 6, the drive device 32 includes a worm 35 which is rotationally driven through an electric motor 33 and a reduction gear 34 provided at its output side. A worm wheel 36 engaged with the worm 35 and a rotational force limiting mechanism 37 provided between the worm wheel 36 and the drive shaft 30 are provided.

As shown in Fig. 7, the worm wheel 36 is freely supported by the drive shaft 30, and is held by the color (stopper) 38 so as not to move to one side in the axial direction.

The ball flanger 40 is installed in the joint collar 39 installed so as not to rotate to the other side in the axial direction of the drive shaft 30, and the ball flanger 40 is worm wheel 36 by the spring 40a. The rotational force limiting mechanism 37 is formed by being tensioned so as to fit in the hole 41 formed in the boss portion 36a.

As described above, when the torque transmitted from the worm wheel 36 to the drive shaft 30 is greater than the set value, the ball plunger 40 moves away from the hole 41 so that the worm wheel 36 drives the drive shaft 30. It revolves about, and rotational force is not transmitted to the drive shaft 30. That is, the rotational force limiting mechanism 37 limits the maximum value of the rotational force transmitted from the motor 33 to the drive shaft 30.

When the worm wheel 36 revolves 180 degrees, the next hole 41 faces the ball flanger 40, the ball flanger 40 engages the hole 41, and the cover 4 moves downward by its own weight. Can not rotate.

Accordingly, the electric motor 33 is driven to rotate the cover 4 up and down to open and close the cover 4 during the opening and closing operation, when a person's hand intentionally or accidentally touches the cover 4 or interferes with a cooking tool placed on a stove. In the case of being impeded, the cover 4 stops as it is without a rotational force transmitted from the worm wheel 36 to the drive shaft 30.

Therefore, safety of a person can be ensured and damage to the drive device 32 and the cover 4 can be prevented.

The drive device 32 (electric motor 33) is driven and controlled in synchronism with the electric motor 3c of the blower 3, as will be described later. When the hood is used, the cover 4 has a longitudinal direction (open position). At the same time, the blower 3 is operated, and when the stove hood is not used, the cover 4 is taken in the horizontal direction and the blower 3 is stopped.

As shown in FIG. 3, the cleaning liquid injection unit 6 connects the four pipes 50 in a rectangular shape with the L-shaped pipe joints 51, and inwardly nozzles 52 and outwards to each pipe 50. It has a structure in which the nozzles 53 are provided, respectively.

The cleaning liquid injection unit 6 is provided on the rear surface (inner surface) of the upper plate 10 of the smoking unit 1a as if the four pipes 50 surround the filter 2. The inwardly facing nozzle 52 faces the filter 2 and pumps the cleaning liquid into the filter 2. The outwardly facing nozzle 53 faces the inner surface of the smoking section 1a and flushes the cleaning liquid to the inner surface.

The cleaning liquid spray angle and the number of the nozzles 52 and 53 are set to be most efficiently cleaned. For example, the inward nozzle 52 is made horizontal and the outward nozzle 53 is made upward, horizontal, and downward.

The cleaning liquid injection unit 6 is not limited to the above-described one, but a plurality of nozzles may be separately provided to face the inner surface of the smoking unit 1a and the filter 2, respectively.

Further, the nozzle body may be rotated by a cleaning liquid sprayed from several nozzles provided with a plurality of nozzles in the nozzle body free of rotational movement.

As shown in FIG. 5, the cleaning liquid supply part 7 includes a cleaning liquid into the cleaning liquid tank 54 of the pressure pump 55 in which the cleaning liquid tank 54 pumps the cleaning liquid in the cleaning liquid tank 54 to the pipe 50. And a water supply means 56 for supplying water, a drainage means 57 for draining the cleaning liquid in the cleaning liquid tank 54 to the outside, and a heater 58 for heating the cleaning liquid in the cleaning liquid tank 54. The pressure pump 55 is driven by the electric motor 55a.

The water supply means 56 includes a water supply pipe 59 connected to a water supply pipe (not shown), and an on / off valve provided in the water supply pipe 59, for example, an electromagnetic open / close valve 60 for water supply. have.

The water supply pipe 59 may be provided with a filter and a water supply source plug. This filter draws in the material that is the source of corrosion which may cause the inside of the hood such as sterilizer and disinfectant in tap water to corrode quickly.

The water supply stopper is closed when the stove hood is not used for a long time to prevent leakage of tap water from the water supply solenoid valve 60 and the like, and is normally opened.

The drain means 57 includes a drain pipe 61 connected to a sewer pipe or a sink not shown, and an on / off valve provided in the drain pipe 61, for example, an electromagnetic open / close valve 62 for drainage.

The draining solenoid valve 62 is normally closed and closed at one time or at the end of several washings (ie, when the washing liquid in the washing liquid tank 54 is dirty), or at any time, and the washing liquid tank is opened for a predetermined time. 54) Drain the dirty cleaning liquid into the sewer pipe.

The drain pipe 61 may be provided with a drain source plug.

The heater 58 generates heat by supplying electricity, and the washing liquid in the washing liquid tank 54 is heated to obtain hot water, for example, 50 to 70 degrees hot water. Specifically, the temperature of the cleaning liquid in the cleaning liquid tank 54 is detected by a temperature sensor and energized by the heater 58 in accordance with the detected temperature to obtain hot water of 50 to 70 degrees.

In addition, although the water supply pipe 59 is connected to the hot water outlet of the water heater installed in the kitchen or the like, hot water can be supplied to the cleaning liquid tank 54, but when the cleaning liquid in the cleaning liquid tank 54 is repeatedly used, Since is low, in that case, the temperature is applied to the heater 58.

As shown in FIG. 2 and FIG. 3, the return pipe 29 provided on the cover 4 crosses the cover 4.

When it is set to the direction, it protrudes into the said washing | cleaning liquid tank 54 through the notch 25a of the lid 25, and the washing | cleaning liquid which flowed down to the cover 4 is collect | recovered by the washing | cleaning liquid tank 54. As shown in FIG.

As shown in Figs. 1 and 3 on the front face of the smoking part 1a (front face of the hood 1), for example, the front face plate 1l, as shown in Figs. 1 and 3, the operation panel 70 ) Is installed.

The operation panel 71 for a range hood as shown in FIG. 8 is provided in the operation panel 70. The operating portion 71 for the range hood includes an off switch 72, a weak drive switch 73, an intermediate drive switch 74, a strong drive switch 75, a timer switch 76, a light switch 77, and the like. Equipped. The configuration of this switch shows an example, and there may be a difference in configuration depending on the function. The operation panel 70 includes a washing selector 78, a washing start button 79, a first timer 80, a second timer 81, and a third timer 82. These operation signals are input to the controller 83. In this controller 83, the detection temperature by the temperature sensor 84 which detects the temperature of the washing | cleaning liquid in the washing | cleaning liquid tank 54 is input.

The controller 83 drives the electric motor 3c of the blower 3, the electric motor 33 of the drive device 32, and the electric motor 55a of the pressure feed pump 55 according to the input signal lamp. The solenoid 60a, 62a of the accommodating solenoid valve 60, the drain solenoid valve 62, and the heater 58 are energized.

The arrangement and arrangement of the operation panel 70 and the range hood operation unit 71 may be changed by the allowable space.

The cleaning selector 78 is manually switched between the automatic cleaning position 78a, the occasional cleaning position 78b, and the cleaning stop position 78c.

The first timer 80 sets one washing start time every day. This washing start time is set to be the least frequently used range hood, such as 23:30, during the day (24 hours).

The second timer 81 sets the washing time per one time. This one-time washing time is set by the content of cooking by a stove, for example, a little and a small amount of oil.

The third timer 82 sets a drying operation time described later.

Although the said controller 83 is built in the operation panel 70, you may provide in the main-body part 1b.

The electric wire 85 which transmits the signal of this controller 83 to an electric motor etc. is provided in the wiring space part 18 of the above-mentioned escacion 13, and has the right and left sides of the escacion 13 shown in FIG. It connects to each apparatus in the main-body part 1b from the wiring space part 18 through the hole (not shown) of the side plate 21, and is connected to the electric motor 3c of the blower 3. As shown in FIG.

The wiring method of this electric wire 85 is not limited to this.

Next, the operation of the range hood will be described.

The range hood driving signal is input to the controller 83 by operating any of the weak operation switch 73, the intermediate operation switch 74, and the strong operation switch 75.

The controller 83 outputs a signal for driving the electric motor 33 of the drive device 32, drives the electric motor 33, rotates the cover 4 downward, and makes the smoking part ( The opening part 5 of 1a is opened.

The controller 83 stops the electric motor 33 when the cover 4 by a limit switch or the like is inputted in the longitudinal direction or after a predetermined time has elapsed after outputting the drive signal of the electric motor 33. do.

At the same time, or in response to a detection signal that the cover 4 is turned in the longitudinal direction by a limit switch or the like, the controller 83 outputs a signal for driving the electric motor 3c of the blower 3, and this electric motor 3c. By operating the blower 3, the gas generated at the time of cooking is sucked and discharged to the outside as described above.

When the range hood stop signal by the operation of the off switch 72 or the time-up signal when the timer switch 76 is operated is input to the controller 83, the controller 83 causes the electric motor 3c of the blower 3 to operate. The blower 3 is stopped by outputting a signal to stop. At the same time, the controller 83 outputs a signal for driving the electric motor 33 of the drive device 32, drives the electric motor 33 in the opposite direction to the above, and moves the cover 4 upward. It rotates and makes a lateral direction, and closes the opening part 5 of the smoking part 1a. Then, the electric motor 33 is stopped by the detection signal of the above-described limit switch, and the cover 4 is held in the horizontal form.

As described above, the cover 4 automatically rotates in the vertical direction when the stove hood is started to operate, and the cover 4 automatically turns to the landscape direction when the stove hood is finished. Therefore, the cover 4 Operation of the up and down rotation is unnecessary, and the cover 4 does not malfunction.

Next, the cleaning operation will be described.

When the cleaning selector 78 is set to the automatic cleaning position 78a. When the cleaning start time set by the first timer 80 is reached, it is confirmed that the cover 4 is in the horizontal direction, and the cleaning operation is started.

In addition, when the cover 4 is not in the horizontal direction, the electric motor 33 of the drive device 32 is driven as described above to make the cover 4 in the horizontal direction.

At this time, a predetermined amount of cleaning liquid is collected in the cleaning liquid tank 54, and the heater 58 is used to make hot water at a predetermined temperature.

The controller 83 outputs a signal for driving the electric motor 55a of the pressure pump 55 and drives the pressure pump 55.

The pumping pump 55 pumps the cleaning liquid in the cleaning liquid tank 54, flushes the cleaning liquid from the nozzles 52 and 53 to the inner surfaces of the filter 2 and the smoking part 1a, and washes the pressed oil component. do.

At this time, since the cleaning liquid is hot water at a predetermined temperature, it is possible to sufficiently clean the oil component and the like pressed on the inner surface of the filter 2 and the smoking section 1a even if no detergent is mixed into the cleaning liquid.

The washed washing liquid flows out to the cover 4, flows along the cover 4, and flows down from the return pipe 29 into the washing liquid tank 54 to be recovered.

The cleaning liquid thus washed is recovered in the cleaning liquid tank 54, so that the cleaning liquid can be circulated and reused for cleaning.

After washing only for a predetermined time, the electric motor 55a of the pressure feed pump 55 is stopped to stop the feeding of the cleaning liquid to complete the cleaning.

After washing, let it dry for a certain period of time using the heat of hot water.

Thereafter, the electric motor 3c of the blower 3 is driven at low speed (corresponding to weak operation of the range hood) and dried for a time set by the third timer 82, for example, for 10 minutes.

Thereby, air is sucked in the smoking part 1a from the above-mentioned micro spacing a, and the washing | cleaning liquid attached to the inner surface of the smoking part la or the filter 2 is discharged | emitted to the outside, and the smoking part 1a is carried out. The inner surface of the filter and the filter 2 are dried.

Thus, the cover 4 is formed by forming a fine gap a between the cover 4 and the smoking portion 1a with the opening 5 of the smoking portion 1a closed in the horizontal direction. ) Can be operated dry without rotating up and down.

When the cover 4 is pressed against the lower surface peripheral portion 1la of the main surface plate 1l of the smoking portion 1a with a sealing material so that the cleaning liquid does not leak, the cover 4 is slightly opened during the drying operation described above. The air may flow by forming a gap between the cover 4 and the lower periphery lla of the lower surface of the main surface plate 11 by rotating downward.

This completes the series of automatic cleaning operations. This automatic cleaning operation may be performed several times during the day.

When the cleaning selector 78 is set to the cleaning position 78b at any time, the cleaning start 79 is operated to clean only the time set by the second timer 81 as described above, and then to the third timer 82. Dry the oven hood only for the set time.

Thus, by setting the cleaning selector 78 at any time to the cleaning position 78b, the inner surface of the smoking section 1a and the filter 2 can be cleaned at an arbitrary timing.

As described above, when the cleaning operation in the hood is repeated, the cleaning liquid in the cleaning liquid tank 54 may be dirty or may be insufficient.

In this case, the cleaning liquid in the cleaning liquid tank 54 is replaced as follows.

When the controller 83 detects the end of one cleaning operation or the end of several cleaning operations, or when the cleaning liquid exchange signal is inputted to the controller 83 by a switch or the like, the controller 83 opens the drain valve. The solenoid 62a of 62 is energized to the open position. Thereby, the washing | cleaning liquid which became dirty in the washing | cleaning liquid tank 54 is drained by the drain pipe 61 as a sewer pipe or a dishwasher.

Upon completion of this drainage, for example, when a predetermined time has elapsed after energizing the solenoid 62a, when the cleaning liquid no signal of the water level sensor provided in the lower portion of the cleaning liquid tank 54 is input, the controller 83 causes the solenoid ( Stop energization to 62a) and close the solenoid valve 62 for drainage.

Thereafter, the solenoid 60a of the water supply solenoid valve 60 is energized to be in an open position.

Thereby, the tap water is supplied as the cleaning liquid from the water supply pipe in the cleaning liquid tank 54.

When a predetermined amount of cleaning liquid is accumulated in the cleaning liquid tank 54, for example, when a predetermined time elapses after energizing the solenoid 60a, or when the cleaning liquid detection signal of the water level sensor provided on the upper portion of the cleaning liquid tank 54 is inputted, The controller 83 stops energization to the solenoid 62a and closes the water supply electromagnetic open and close valve 60.

When the cleaning liquid exchange is completed as described above, the heater 58 is energized when the cleaning liquid in the cleaning liquid tank 54 is energized by applying a temperature to the peter 58 and detecting that the predetermined temperature has been reached by the detection temperature of the temperature sensor 84. Stop energizing. When the temperature of the cleaning liquid in the cleaning liquid tank 54 decreases with the passage of time, the heater 58 is energized to apply a temperature. This operation is repeated to maintain the temperature of the cleaning liquid in the cleaning liquid tank 54 at a predetermined temperature.

Although the range hood which has the filter 2 was shown in the above Example, this invention is applicable also to the range hood of a centrifugal force type without a filter. For example, by providing the cover 4 and the cleaning device, the same effects as described above can be obtained.

According to the present invention, since the opening portion 5 of the hood 1 is opened by moving the cover 4 to the open position, the gas generated during cooking can be discharged to the outside by driving the blower 3.

And since the opening part 5 of the hood 1 is closed by moving the cover 4 to the closing position, the hood inside such as the inner surface of the hood 1 is not visible.

Therefore, since the inside of the hood 1 in an unsightly state in which oil components and the like are pressed is not seen, the appearance of the appearance is good. Moreover, the hood 1 and the cover 4 are integrated and have a fresh appearance, and there is a feeling of cleanliness.

According to the present invention, when the cover 4 is in the open position, the cover 4 has a function as a guide of the combustion gas or the updraft, so that the gas generated during cooking can be sucked efficiently, It can assist in the ascent smoothly.

According to the present invention, since the cover 4 is in the open position when the hood is in use and the cover 4 is in the closed position when the hood is not in use, only the operation of the hood is operated and the operation of moving the cover 4 is unnecessary. Do.

According to the present invention, when the cover 4 is moved to the closed position and the open position, a person's hand intentionally or accidentally touches the cover 4, or the cover 4 is interfered with a cooking utensil placed on a stove. As the movement of the cover 4 is hindered, if the force for moving the cover 4 exceeds the maximum value, the cover 4 does not move by the rotational force of the electric motor 33 by the rotational force limiting mechanism 37. . Therefore, it is possible to ensure the safety of the person and at the same time prevent damage to the drive device 32, the cover (4).

According to the present invention, the cleaning liquid is sprayed into the hood with the cover 4 in the closed position, and the pressed oil component and the like can be cleaned. Moreover, the pressed cleaning liquid is prevented from scattering from the opening portion 5 to the surroundings by the cover 4.

According to the present invention, tap water can be used as a washing liquid.

Since the cleaning liquid is spouted out after the hot water, it is possible to clean the oil component and the like stuck inside the hood even if no detergent is mixed into the cleaning liquid.

The cleaning liquid in the cleaning liquid tank 54 can be circulated and used.

According to the present invention, since the cleaning liquid in the cleaning liquid tank 54 can be drained to supply fresh tap water, the dirty cleaning liquid can be replaced.

Claims (7)

A hood having an opening at a lower surface thereof, a blower for sucking gas discharged from cooking at the same time as air and discharging it to the outside, and a cover for opening and closing the opening of the hood; And the cover is movable to a closed position of closing the opening and an open position of opening the opening. The method of claim 1, And when the cover is in the open position, the cover has a longitudinal posture continuous with the rear periphery of the opening of the hood. The method according to claim 1 or 2 The cover is moved to the closed position and the open position by the driving device, and the drive is controlled in synchronization with the driving device and the blower so that the cover is moved to the open position when the stove hood is not used and the cover is moved to the closed position when the stove hood is not used. Range hood characterized in that. The method of claim 3, wherein The driving apparatus has a range hood, comprising: an electric motor for moving the cover to a closed position and an open position; and a rotational force limiting mechanism for limiting a maximum value of a force for moving the cover by the electric motor. The method according to any one of claims 1 to 4 A range hood, comprising: a cleaning device for spraying and cleaning the cleaning liquid into the hood, such as the inner surface of the hood 1; The method of claim 5 The cleaning apparatus includes a cleaning liquid spraying portion for spraying the cleaning liquid into the hood and for feeding the cleaning liquid into the cleaning liquid spraying portion, The cleaning liquid supplying unit has a cleaning liquid tank, a water supply means for supplying tap water to the cleaning liquid tank, a heater for applying hot water to the cleaning liquid in the cleaning liquid tank, and a pump for feeding the cleaning liquid in the cleaning liquid tank to the cleaning liquid spraying unit. And a washing hood sprayed into the hood to be recovered into the washing tank along the cover in the closed position. The method of claim 6, And a drainage means for draining the cleaning liquid in the cleaning liquid tank to a sewer pipe or dishwasher.