CN216557283U - Fume exhaust fan - Google Patents

Abstract

The utility model discloses a range hood, which comprises a range hood body and a control panel arranged on the range hood body, wherein the range hood body comprises a fan system and a moving part, the range hood also comprises a sensor for detecting the concentration of oil smoke and controlling the gear of the fan system, and the range hood is characterized in that: the control panel is composed of a gesture induction window for controlling the range hood body to be opened and closed and a switch key for controlling the moving part. Compared with the prior art, the utility model has the advantages that: 1) the operation is simple: when a user cooks, only the user waves hands to open the range hood, the range hood does not need to be operated during cooking, the range hood can intelligently adjust operation gears according to oil smoke concentration, not only two hands are liberated, but also the cooking experience of the user is greatly improved; 2) during cooking, the hands and the range hood are in non-contact, and the workload of subsequent cleaning is reduced.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil fume purification device, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

The existing range hood, such as the multifunctional range hood disclosed in chinese patent application No. 201520623132.X, comprises a case, a fan system, a control system, an oil filtering device and a suspension mounting device, wherein an air inlet is formed in the side surface of the case facing a cooking bench, the fan system comprises a volute, a motor and an impeller which are arranged in the volute, and a smoke pipe connected with the volute and a kitchen chimney; the computer case is provided with a control panel, and the control panel is provided with an illumination key, a gear adjusting key and a power key.

The range hood has the following problems:

1. when a user cooks, the hand cannot be kept clean all the time, water or oil and the like can be adhered to the hand, the range hood is inconvenient to operate, water or oil stains can be adhered to the key position of the range hood, subsequent cleaning work is increased, the key is more likely to be insensitive, and trouble is caused to the user;

2. the operating gears of the existing range hood are fixed, such as weak gears, strong gears, super-strong gears and the like, the switching among the gears is manually operated by a user at present and cannot be intelligently adjusted according to the actual condition of oil smoke, and when the user cooks, the user not only needs to pay attention to dishes in a pot, but also needs to operate the range hood by mind, so that the cooking experience is reduced;

3. the existing range hood has various keys, so that a user can selectively disturb the range hood in the using process, and when the user cleans the appearance of the range hood, the user can mistakenly touch the key to open the range hood, which causes inconvenience.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a range hood aiming at the problems in the prior art, which can simplify the operation, avoid the contact between the hand and the key and reduce the workload of subsequent cleaning.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a range hood, includes the range hood body and sets up the control panel on the range hood body, the range hood body includes fan system and moving part, thereby range hood is still including the sensor that detects oil smoke concentration and be used for controlling fan system gear, its characterized in that: the control panel is composed of a gesture induction window for controlling the range hood body to be opened and closed and a switch key for controlling the moving part.

Preferably, in order to improve the range of gathering the smoke and improve the effect of absorbing the smoke, the range hood body comprises an air inlet, and the moving part is a smoke baffle plate for opening and closing the air inlet.

Optionally, the range hood is of a side-draft type, the range hood body further comprises a casing, the fan system is arranged in the casing, the front side of the casing is open and provided with a panel, the air inlet is formed in the panel, and the smoke baffle and the control panel are also arranged on the panel.

In order to control the opening and closing of the smoke baffle plate conveniently, the smoke baffle plate is driven by an electric motion mechanism, and the range hood body further comprises an electric motion mechanism for driving a motion part to move.

In order to control the fan system and the smoke baffle plate according to signals of the control panel or the sensor, the range hood further comprises a control module, and the fan system, the sensor, the movement mechanism and the control panel are all electrically connected to the control module.

Preferably, to avoid the misoperation, the gesture sensing window has two spaced apart windows.

Compared with the prior art, the utility model has the advantages that: through adopting the gesture response to open and close range hood body, detect the gear of oil smoke concentration control fan system and the motion of key control moving part, can realize:

1) the operation is simple: when a user cooks, the user only needs to wave a hand to open the range hood, the range hood does not need to be operated during cooking, the range hood can intelligently adjust the operation gear according to the concentration of oil smoke, so that both hands are liberated, the user only needs to concentrate on dishes, and the cooking experience of the user is greatly improved;

2) during cooking, the hands and the range hood are in non-contact, so that the workload of subsequent cleaning is reduced;

3) the number of keys is reduced, so that the user can save the trouble of selection during cooking, and the cooking is more convenient.

Drawings

FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a range hood in accordance with an embodiment of the present invention;

fig. 3 is a control flow chart of the range hood according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 and 2, a range hood includes a range hood body 1 and a control panel 2 disposed on the range hood body 1.

The range hood body 1 includes a housing 11 and a fan system 12 disposed in the housing 11, and in this embodiment, the range hood is a side-draft range hood, but may be any other range hood. The front side of the housing 11 is open and is provided with a panel 14, and the panel 14 is provided with an air inlet 15, so that the oil smoke can enter the housing 11 from the air inlet 15 and be discharged by the fan system 12.

The panel 14 is further provided with a smoke barrier 13, and the smoke barrier 13 can open and close the air inlet 15. The range hood also comprises an electric movement mechanism 17 for driving the smoke baffle 13 to move, the movement mode of the smoke baffle 13 is preferably reversed, and the movement mechanism 17 can be selected from the prior art, such as the combination of a motor and a connecting rod assembly and the like.

A sensor 16, such as an infrared sensor, for sensing the concentration of the soot may be disposed at the front side of the housing 11, for example, adjacent to the air inlet 15, and the gear of the fan system 12 may be controlled by the soot concentration detected by the sensor 16.

The control panel 2 is arranged on the panel 14 and comprises two gesture sensing windows 21 and a switch key 22 positioned between the two gesture sensing windows 21. In the present embodiment, the control panel 2 only includes the sensing window and the keys, thereby greatly simplifying the structure of the control panel 2.

The gesture sensing window 21 is used for sensing a gesture of a user, and the gesture sensing principle is the same as that in the prior art, so that the opening and closing of the range hood body 1 can be controlled, where the opening action of the range hood body 1 may include, for example, the opening of the lighting device, the opening of the fan system 12 (not involving the adjustment of gears), the starting of the sensor 16, and the like, and the closing action of the range hood body 1, that is, the closing action includes but is not limited to the above-mentioned components. The two gesture sensing windows 21 are arranged at intervals left and right, and the switch key 22 can be arranged in the middle of the gesture sensing window 21. When the hand of user waves from left to right, according to the signal that two gesture response windows 21 sensed successively, range hood body 1 opens, and when the hand of user waves from right to left, according to the signal that two gesture response windows 21 sensed successively, range hood body 1 closes. The gesture-sensing window 21 may also be arranged in other directions, such as up and down.

The switch key 22 only controls the opening and closing of the smoke baffle 13 of the range hood body 1, and does not control the operation of the fan system 12.

The fan system 12, the sensor 16, the moving mechanism 17 and the control panel 2 are all electrically connected to the control module 3 of the range hood, so that signals of the sensor 16 and the control panel 2 are input into the control module 3, and the fan system 12 and the moving mechanism 17 (the smoke baffle 13) can be controlled accordingly. The control logics (the relation between the oil smoke concentration and the gear, the relation between the key pressing and the starting and closing of the driving part of the moving mechanism 17) of the fan system 12 and the moving mechanism 17 are the same as the prior art.

Referring to fig. 3, the range hood of the present invention includes the following steps:

1) controlling the starting of the range hood body 1 by gesture induction;

2) the sensor 16 detects real-time oil smoke concentration M, compares the M with preset oil smoke concentration threshold values M1 and M2, and controls the comparison result correspondingly, wherein M1 < M2:

2.1) if M is more than 0 and less than or equal to M1, controlling the fan system 12 to start a T1 gear;

2.2) if M is more than M1 and less than or equal to M2, controlling the fan system 12 to start a T2 gear;

2.3) if M is larger than M2, controlling the fan system 12 to start a T3 gear;

3) the sensor 16 detects the real-time oil smoke concentration M' again, judges whether the oil smoke concentration is reduced, if so, returns to the step 2); if not, entering step 4);

4) judging whether the fan system 12 is in the maximum gear, if not, lifting the gear to operate, and returning to the step 2); if yes, keeping the current gear continuously running and returning to the step 2).

In the above gears, T1 < T2 < T3. In the embodiment, the gear is a third gear, and alternatively, the fan system 12 may have other numbers of gears, such as only a strong gear and a weak gear.

When the range hood needs cleaning, the switch key 22 is pressed for a long time, for example, 2s, the control module 3 can control the control panel 2 to be locked, and therefore the range hood can not be started due to mistaken touch when being cleaned. When the range hood needs to operate again, the switch key 22 is pressed for the same long time, and the range hood can be unlocked.

In this embodiment, the switch button 22 controls the smoke barrier 13, alternatively, when the form of the range hood changes, it can also be used to control other moving components similar to the smoke barrier 13, such as a smoke guide plate that can be lifted or turned over by a top-suction range hood, a lifting assembly of a lifting range hood, and the like. The movement mechanism 17 drives such moving parts accordingly.

Claims (6)

1. The utility model provides a range hood, includes range hood body (1) and sets up control panel (2) on range hood body (1), range hood body (1) includes fan system (12) and moving part, thereby range hood still includes sensor (16) that detect oil smoke concentration and be used for controlling fan system (12) gear, its characterized in that: the control panel (2) is composed of a gesture sensing window (21) for controlling the opening and closing of the range hood body (1) and a switch key (22) for controlling a moving part.

2. The range hood of claim 1, wherein: the range hood body (1) comprises an air inlet (15), and the moving part is a smoke baffle (13) for opening and closing the air inlet (15).

3. The range hood of claim 2, wherein: the range hood body (1) further comprises a shell (11), the fan system (12) is arranged in the shell (11), the front side of the shell (11) is open and is provided with a panel (14), the air inlet (15) is formed in the panel (14), and the smoke baffle (13) and the control panel (2) are also arranged on the panel (14).

4. The range hood according to any one of claims 1 to 3, wherein: the range hood body (1) further comprises an electric movement mechanism (17) for driving the movement of the movement component.

5. The range hood of claim 4, wherein: the range hood further comprises a control module (3), and the fan system (12), the sensor (16), the movement mechanism (17) and the control panel (2) are all electrically connected to the control module (3).

6. The range hood according to any one of claims 1 to 3, wherein: the gesture sensing window (21) has two spaced apart windows.

Images