CN216521872U - Cooking fume exhauster - Google Patents

Abstract

The utility model discloses a range hood, which comprises an air inlet component and a fan frame arranged above the air inlet component, wherein the air inlet component is communicated with the fluid in the fan frame, and comprises a front side wall and a rear side wall which are arranged at intervals in the front and the rear directions, and the range hood is characterized in that: the front side wall is provided with a first air inlet, the rear side wall is provided with a second air inlet, and the first air inlet and the second air inlet can be opened and closed independently. Compared with the prior art, the utility model has the advantages that: through setting up two air intakes that can independently open and close around, can adjust the air inlet form according to the culinary art state to improve with the suitability of different culinary art states, improve the oil absorption cigarette effect.

Description

Cooking fume exhauster

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 mainly has a low suction type in the form that an air inlet is close to a smoke source, for example, a low suction type range hood disclosed in Chinese patent with application number 201120406258.3 comprises a smoke collecting hood with a smoke suction port at the bottom, a fan cover is arranged at the top of the smoke collecting hood, at least one group of fans are arranged in the fan cover, a filter assembly capable of adjusting the air inlet position is further arranged on the smoke suction port, the inside of the smoke collecting hood is hollow, the fan cover is arranged at the center or one side of the top of the smoke collecting hood, and the air inlet of each fan is communicated with the smoke collecting hood.

The thin range hood cannot adjust the air inlet form according to the cooking state, and the oil smoke is easy to escape.

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 adjust the air inlet form according to the cooking state and improve the oil smoke absorption effect.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a range hood, includes air inlet subassembly and sets up the fan frame in air inlet subassembly top, the inside fluid intercommunication of air inlet subassembly and fan frame, the preceding lateral wall and the back lateral wall of interval arrangement around the air inlet subassembly includes, its characterized in that: the air conditioner is characterized in that a first air inlet is formed in the front side wall, a second air inlet is formed in the rear side wall, and the first air inlet and the second air inlet can be opened and closed independently.

In order to be convenient for approaching a smoke source, oil smoke is locked in advance, and the oil smoke absorption effect is improved, the first air inlet is close to the bottom of the front side wall, and the second air inlet is close to the bottom of the rear side wall.

In order to facilitate oil and smoke guiding, the part of the rear side wall, provided with the second air inlet, is gradually inclined forwards from top to bottom.

In order to filter the oil smoke conveniently, the oil stain on the rear side wall is guided downwards, and a filter screen is arranged at the position of the second air inlet.

Preferably, be convenient for open and close first air intake, be convenient for hold together the cigarette simultaneously, improve the oil absorption cigarette effect, be provided with first cigarette board on the preceding lateral wall, first cigarette board can open and close first air intake with overturning.

Preferably, in order to open and close the second air inlet conveniently and to gather the smoke conveniently, and to improve the effect of absorbing the oil smoke, a second smoke baffle is arranged on the rear side wall and can open and close the second air inlet in a turnover manner.

In order to collect oil stains flowing down in the air inlet assembly and the air rack, the air inlet assembly further comprises a bottom wall arranged between the bottom ends of the front side wall and the rear side wall, an oil cup is arranged at the bottom of the air inlet assembly, and an oil leakage hole is formed in the position, corresponding to the oil cup, of the bottom wall.

In order to facilitate the fluid communication between the fan frame and the air inlet assembly, the air inlet assembly further comprises a top wall arranged between the top ends of the front side wall and the rear side wall, and an opening is formed in the top wall to enable the fluid communication between the air inlet assembly and the fan frame.

Compared with the prior art, the utility model has the advantages that: the front air inlet and the rear air inlet which can be opened and closed independently are arranged, so that the air inlet form can be adjusted according to the cooking state, the adaptability to different cooking states is improved, and the oil smoke absorption effect is improved; the part of the rear side, provided with the air inlet, is arranged to be inclined forwards from top to bottom gradually, so that oil stains can be conveniently guided to flow downwards, and meanwhile, oil smoke is guided to enter the air inlet.

Drawings

Fig. 1 is a schematic view (viewed from the front to the back) of an open state of a range hood according to an embodiment of the present invention;

fig. 2 is a schematic view (from back to front) of an open state of the range hood according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view of a hidden fan frame of the range hood according to the embodiment of the present invention;

fig. 4 is a schematic view of a first smoke barrier closed state of the range hood according to the embodiment of the utility model;

fig. 5 is a schematic view of a closed state of a second smoke baffle of the range hood according to the embodiment of the utility model;

fig. 6 is a schematic view of a range hood according to an embodiment of the present invention showing a closed state of two smoke baffles.

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 to 3, a range hood includes an air intake assembly 1 and a fan frame 2 disposed above the air intake assembly 1, wherein a fan system (not shown) is disposed in the fan frame 2. The air inlet component 1 is communicated with the fluid in the fan frame 2.

The thickness of the air intake component 1 in the front-back direction is smaller than that of the fan frame 2, and the thickness of the air intake component 1 can be adjusted, wherein the front side is the side close to a user in a use state, and the back side is the side far away from the user in the use state. The air inlet component 1 comprises a front side wall 11 and a rear side wall 12 which are arranged at intervals in the front-rear direction, a left side wall 13 is connected between the left ends of the front side wall 11 and the rear side wall 12, a right side wall 14 is connected between the right ends of the front side wall 11 and the rear side wall 12, a top wall 15 is connected between the top ends of the front side wall 11 and the rear side wall 12, and a bottom wall 16 is connected between the bottom ends of the front side wall 11 and the rear side wall 12. Thus, the air intake unit 1 has a hollow box shape. The bottom of the air inlet component 1 is provided with an oil cup 5, and an oil leakage hole 161 can be formed in the bottom wall 16 at a position corresponding to the oil cup 5, so that oil stains can be collected in the oil cup 5 through the oil leakage hole 161.

The front side wall 11 is provided with a first air inlet 17, and the first air inlet 17 is preferably close to the bottom of the front side wall 11. The rear side wall 12 is provided with a second air inlet 18, and the second air inlet 18 is preferably close to the bottom of the rear side wall 12. Therefore, the two air inlets are close to the smoke source, and the oil smoke can be locked well before rising. And through setting up two air intakes in front and back, whole air intake region is wide, can hold together the cigarette better. The rear side wall 12 is preferably inclined forward from top to bottom at the portion where the second air inlet 18 is formed, so as to play a role in guiding oil, which is helpful to guide oil stains into the oil cup 5, and guide oil smoke into the second air inlet 18. An opening 151 is formed in the top wall 15, so that oil smoke can enter the air inlet assembly 1 through the first air inlet 17 and then enter the fan frame 2 through the opening 151.

The range hood further comprises a smoke baffle assembly, the smoke baffle assembly comprises a first smoke baffle 31 arranged on the front side wall 11 and a second smoke baffle 32 arranged on the rear side wall 12, the first smoke baffle 31 can open and close the first air inlet 17 in a turnover mode, and the second smoke baffle 32 can open and close the second air inlet 18 in a turnover mode. The moving mechanism of the first smoke baffle 31 and the second smoke baffle 32 can adopt a mechanism commonly used in the prior art, and a detailed description is omitted.

The second air inlet 18 is provided with the filter screen 4, which not only can separate grease, but also can guide the grease flowing down from the upper side of the filter screen 4 into the bottom of the air inlet component 1 through the filter screen 4, so as to enter the oil cup 5.

The control method of the range hood of the utility model comprises the following steps:

1) the range hood is started, and the first smoke baffle 31 and the second smoke baffle 32 are in a closed state;

2) collecting user signals m and n and comparing the user signals with a preset value a, wherein m and n are preferably oil smoke concentrations at the front side and the rear side, a is a preset oil smoke concentration, and two smoke baffles are correspondingly controlled according to a comparison result:

2.1) when m is less than a and n is less than a, judging that the current cooking state is a cooking mode and the oil smoke amount is small, sending a signal to a control system of the range hood, operating the range hood at a weak gear, opening the second smoke baffle 32, closing the first smoke baffle 31, and feeding the oil smoke from the second air inlet 18 at the rear side, as shown in fig. 5;

2.2) when m is a and n is a, judging that the current cooking state is a mode with large oil smoke amount such as frying, sending a signal to a control system of the range hood, turning on a strong gear of the range hood, turning off the second smoke baffle 32, and turning on the first smoke baffle 31, as shown in fig. 4;

2.3) when m is more than a and n is more than a, judging that the current cooking state is a mode with extremely large oil smoke volume such as stir-frying and the like, sending a signal to a control system of the range hood, fully opening the first smoke baffle plate 31 and the second smoke baffle plate 32, and effectively increasing the air inlet area, as shown in fig. 1 and 2.

When the range hood is closed, the first smoke baffle 31 and the second smoke baffle 32 can be closed.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Claims (8)

1. The utility model provides a range hood, includes air inlet subassembly (1) and sets up in air inlet subassembly (1) top fan frame (2), the inside fluid intercommunication of air inlet subassembly (1) and fan frame (2), preceding lateral wall (11) and back lateral wall (12) that interval arranged around air inlet subassembly (1) is including, its characterized in that: the air conditioner is characterized in that a first air inlet (17) is formed in the front side wall (11), a second air inlet (18) is formed in the rear side wall (12), and the first air inlet (17) and the second air inlet (18) can be opened and closed independently.

2. The range hood of claim 1, wherein: the first air inlet (17) is close to the bottom of the front side wall (11), and the second air inlet (18) is close to the bottom of the rear side wall (12).

3. The range hood of claim 1 or 2, wherein: the part of the rear side wall (12) provided with the second air inlet (18) is gradually inclined forwards from top to bottom.

4. The range hood of claim 3, wherein: and a filter screen (4) is arranged at the second air inlet (18).

5. The range hood of claim 1 or 2, wherein: be provided with first cigarette board (31) on preceding lateral wall (11), first cigarette board (31) can open and close first air intake (17) with overturning.

6. The range hood of claim 1 or 2, wherein: and a second smoke baffle (32) is arranged on the rear side wall (12), and the second smoke baffle (32) can open and close the second air inlet (18) in a turnover manner.

7. The range hood of claim 1 or 2, wherein: the air inlet assembly (1) further comprises a bottom wall (16) arranged between the bottom ends of the front side wall (11) and the rear side wall (12), an oil cup (5) is arranged at the bottom of the air inlet assembly (1), and an oil leakage hole (161) is formed in the position, corresponding to the oil cup (5), of the bottom wall (16).

8. The range hood of claim 1 or 2, wherein: the air inlet assembly (1) further comprises a top wall (15) arranged between the top ends of the front side wall (11) and the rear side wall (12), and an opening (151) is formed in the top wall (15) to enable fluid communication between the air inlet assembly (1) and the air frame (2).

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