CN217441746U

CN217441746U - Fume exhaust fan

Info

Publication number: CN217441746U
Application number: CN202220962042.3U
Authority: CN
Inventors: 袁柯铭; 唐兴旺
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-09-16
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a range hood, which comprises a box body and a fan frame, wherein a fan system is arranged on the inner side of the fan frame, the inner side of the box body is communicated with the fan system by fluid, an air inlet component is arranged on the box body, the air inlet component comprises a hollow shell, and the shell is rotatably connected with the box body so as to rotate around an axis extending in the left-right direction; the shell is provided with a first air inlet and a second air inlet which are arranged at left and right intervals, and the first air inlet and the second air inlet are both independently communicated with the inner side of the box body through fluid; the range hood also comprises a flow control device which is arranged at the first air inlet and the second air inlet and is used for changing the ventilation area corresponding to the air inlets so as to control the air inlet amount. Compared with the prior art, the utility model has the advantages of: the ventilation areas of the two air inlets can be independently changed without increasing the total air quantity, so that the problem that the oil fume suction effect can be greatly improved on the same side of the range hood corresponding to the single-side quick-frying cooking device is solved.

Description

Cooking fume exhauster

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood.

Background

The range hood is used as an essential kitchen appliance for each family, the range hood has the effects that oil smoke is sucked from the air inlet through the impeller rotating at a high speed in the volute, the oil smoke is filtered by the impeller, the filtered oil smoke is discharged from the air outlet, the purification work of kitchen air is completed, the reasonable air inlet is favorable for improving the oil smoke suction effect, the escape of the oil smoke is reduced, and the air quality of the kitchen is improved.

Chinese utility model patent No. 202122402075.0 discloses a range hood, including casing and the fan frame of setting in the casing top, be provided with the fan system in the fan frame, be formed with the air intake between casing and the fan frame, be formed with on the casing by the inside sunken smoke inlet chamber of front side surface, the air intake, smoke inlet chamber and fan system fluid intercommunication, the casing is including being located the air inlet board that is used for oil smoke direction fan system that enters the smoke inlet chamber, the air inlet board is extended towards the inboard top slope of casing by the lower part department of air intake, range hood is still including the cleaning device who is used for clean air inlet board.

The burner of common domestic cooking utensils usually divides two on the left and right sides, and the user is in the culinary art in-process, sometimes only uses the burner of one side, sometimes both sides use simultaneously, but the stir-fry that can produce a large amount of oil smoke often only in one of them side in the family cooks. If the user only uses the left furnace end to cook dishes or uses the left side to cook and steam rice in the actual cooking process, the left oil smoke concentration and the oil smoke particle potential of the range hood are necessarily much larger than those of the right side, so that the oil smoke escape is usually caused when the range hood is fried and cooked, the common solution is to increase the rotating speed of the impeller, increase the total air volume of the range hood, and increase the total air volume while causing the air halo on the left side and the air halo on the right side, thereby improving the effect of absorbing the oil smoke. Obviously the promotion of impeller rotational speed will lead to the noise to increase by a wide margin, influences people healthy, and the stir-fry of actually cooking takes place in one side, and both sides promote the energy consumption waste that the amount of wind leads to one side in addition simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide a range hood, can increase the oil absorption cigarette effect of unilateral through the flow distribution of the left and right sides.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes box and the fan frame of setting in the box top, the inboard of fan frame is provided with fan system, the inboard and the fan system fluid intercommunication of box, be provided with air inlet subassembly, its characterized in that on the box:

the air inlet assembly comprises a hollow shell, and the shell is rotatably connected with the box body so as to rotate around an axis extending in the left-right direction; the shell is provided with a first air inlet and a second air inlet which are arranged at left and right intervals, and the first air inlet and the second air inlet are both independently communicated with the inner side of the box body through fluid;

the range hood also comprises a flow control device which is arranged at the first air inlet and the second air inlet and is used for changing the ventilation area corresponding to the air inlets so as to control the air inlet amount.

Preferably, for the area of ventilating of each air intake of change of being convenient for, flow control device includes can open or close the aerofoil subassembly that corresponds the air intake corresponding air intake in corresponding air intake department, the aerofoil subassembly includes first aerofoil and second aerofoil, first aerofoil and second aerofoil all rotate to set up in the air intake department that corresponds, first aerofoil and second aerofoil set up relatively, first aerofoil and second aerofoil can rotate and close corresponding air intake towards the inboard of air intake subassembly to and can rotate and open corresponding air intake towards the outside of air intake subassembly.

In order to realize the better cigarette effect that holds together of air intake, first air intake all is rectangle with the second air intake, first aerofoil rotates the front portion that sets up at the air intake, the second aerofoil rotates the rear portion that sets up at the air intake, flow control device still includes the baffle subassembly, the baffle subassembly is including setting up first baffle on first aerofoil and setting up the second baffle on the second aerofoil, thereby first baffle has two positions that can shelter from first aerofoil both ends on self axis of rotation when first aerofoil is opened, thereby the second baffle has two positions that can shelter from second aerofoil both ends on self axis of rotation when the second aerofoil is opened.

In order to drive the first air plate and the second air plate to act, the flow control device further comprises a movement mechanism for driving the first air plate and the second air plate to act.

In order to drive the first air plate and the second air plate to act, the movement mechanism comprises a linear driving module, a first connecting rod, a second connecting rod and a third connecting rod, the linear driving module is longitudinally arranged on the inner side of the air inlet assembly, one end of the first connecting rod is rotatably connected with one end of the second connecting rod, the other end of the first connecting rod is rotatably connected with one end of the third connecting rod, a body part of the first connecting rod, which is positioned between the two end parts, is connected with the output end of the linear driving module, one end, which is far away from the first connecting rod, of the second connecting rod is rotatably connected with the inner side of the first air plate, and one end, which is far away from the first connecting rod, of the third connecting rod is rotatably connected with the inner side of the second air plate.

In order to realize the connection of the movement mechanism and the corresponding wind plates, a first support is arranged on the inner side of each first wind plate, one end, far away from the first connecting rod, of each second connecting rod is rotatably connected with the corresponding first support, a second support is arranged on the inner side of each second wind plate, and one end, far away from the first connecting rod, of each third connecting rod is rotatably connected with the corresponding second support.

Preferably, in order to enable the air inlet to be close to the smoke source, the first air inlet and the second air inlet are formed in one end, far away from the end connected with the box body, of the shell.

Compared with the prior art, the utility model has the advantages of: the flow control device is arranged, so that the ventilation areas of the two air inlets can be independently changed, the flow of the first air inlet and the flow of the second air inlet on the left side and the right side can be distributed, the total air quantity does not need to be increased, and the problem that the oil fume suction effect can be greatly improved on the same side of the corresponding range hood when one side is fried and cooked is solved; the first air plate and the second air plate which are opposite to each other at each air inlet can improve the smoke collecting effect when the air inlet is opened, and the air guide function is achieved; the baffles are arranged at the two ends of each air plate, so that oil smoke can be prevented from escaping, and meanwhile, the flow control device forms a smoke collecting cavity outside the air inlet assembly, so that the smoke collecting effect can be better improved.

Drawings

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

fig. 2 is a schematic view of the range hood according to the embodiment of the present invention when the air intake assembly is in a vertical state;

fig. 3 is a schematic view of the range hood according to the embodiment of the present invention when the air intake assembly rotates toward the front side;

fig. 4 is a schematic view illustrating that the flow control device of the range hood according to the embodiment of the present invention completely opens the first air inlet and the second air inlet;

fig. 5 is a schematic view illustrating the flow control device of the range hood according to the embodiment of the present invention opening a portion of the first air inlet and completely opening the second air inlet;

fig. 6 is a schematic view illustrating the flow control device of the range hood according to the embodiment of the present invention closing the first air inlet and fully opening the second air inlet;

fig. 7 is a schematic view of the flow control device of the range hood according to the embodiment of the present invention closing the corresponding air inlet;

fig. 8 is a schematic view of the range hood according to the embodiment of the present invention when the flow control device opens the corresponding air inlet completely.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center," "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 a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions 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 a box body 1 and a fan frame 2 disposed above the box body 1, wherein a fan system is disposed inside the fan frame 2, and the inside of the box body 1 is in fluid communication with the fan system.

Referring to fig. 4 to 6, an air intake assembly 3 is disposed below the case 1. The air intake assembly 3 includes a hollow housing 33, and the housing 33 is rotatably connected to the case 1 so as to be rotatable about an axis extending in the left-right direction. The housing 33 is provided with a first air inlet 31 and a second air inlet 32, and the first air inlet 31 and the second air inlet 32 are arranged at left and right intervals. The first air inlet 31 and the second air inlet 32 are both rectangular, and the first air inlet 31 and the second air inlet 32 are both independently in fluid communication with the inner side of the box 1 (the two air inlets are independently realized by a partition board in the housing 33, the partition board is not shown). In this embodiment, the first air inlet 31 and the second air inlet 32 are disposed at an end of the casing 33 far away from the end connected to the box 1, that is, when the air inlet assembly 3 rotates to the vertical state, the first air inlet 31 and the second air inlet 32 are located at a bottom end of the casing 33, and the casing 33 is connected to the box 1 at or near an upper end thereof.

Referring to fig. 4 to 8, the range hood further includes a flow control device 4 disposed at the first air inlet 31 and the second air inlet 32 for controlling an air inlet amount of the corresponding air inlet. The flow control means 4 comprises a damper assembly which can open or close the corresponding air inlet at the corresponding air inlet. Each of the louver assemblies includes a first louver 41 and a second louver 42. The first wind plate 41 and the second closing plate 42 are oppositely arranged at the corresponding air inlet. As in the present embodiment, when the air intake assembly 3 is rotated to the vertical position, the first air plate 41 is located at the front of the air inlet, and the second air plate 42 is located at the rear of the air inlet. The first closing plate 41 and the second air plate 42 are both rotatably connected to the housing 33, and the respective rotational axes thereof extend in the left-right direction. The first and

second louvers

41 and 42 are capable of rotating toward the inside of the intake assembly 3 to close the corresponding intake vent, and capable of rotating toward the outside of the intake assembly 3 to open the corresponding intake vent.

The flow control device 4 further includes a shutter assembly that can block both left and right ends (positions of both ends on its own rotation axis) of the first damper 41 and the second damper 42 when the first damper 41 and the second damper 42 are opened. The baffle assembly includes first baffles 43 disposed at left and right sides of the first aerofoil 41 and second baffles 44 disposed at left and right sides of the second aerofoil 42. The first baffle 43 and the first air plate 41 are integrally formed, and the first baffle 43 is driven by the first air plate 41. The second baffle 44 and the second air plate 42 are integrally formed, and the second baffle 44 is driven by the second air plate 42.

Referring to fig. 7 to 8, the flow control device 4 further includes a moving mechanism for driving the first damper 41 and the second damper 42 to operate. The motion mechanism includes a linear driving module 45, a first link 46, a second link 47, and a third link 48. The linear driving module 45 is longitudinally arranged on the inner side of the air inlet component 3, one end of the first connecting rod 46 is rotatably connected with one end of the second connecting rod 47, the other end of the first connecting rod 46 is rotatably connected with one end of the third connecting rod 48, the body part of the first connecting rod 46 between the two ends is connected with the output end of the linear driving module 45, one end of the second connecting rod 47 far away from the first connecting rod 46 is rotatably connected with the inner side of the first wind plate 41, and one end of the third connecting rod 48 far away from the first connecting rod 46 is rotatably connected with the inner side of the second wind plate 42. The linear driving module 45 in this embodiment is an electric push rod, and can be replaced by other existing linear driving modules, such as a motor, a gear and rack, an air cylinder, an electric push rod, and the like.

The first bracket 49 is arranged on the inner side of the first wind plate 41, and one end of the second connecting rod 47 far away from the first connecting rod 46 is rotatably connected with the first bracket 49. The second bracket 410 is arranged on the inner side of the second air deflector 42, and one end of the third connecting rod 48 far away from the first connecting rod 46 is rotatably connected with the second bracket 410.

Referring to fig. 4, when two burners of two cookers cook simultaneously, the flow control devices 4 on the left and right sides completely open the first air inlet 31 and the second air inlet 32, and at this time, the first air inlet 31 and the second air inlet 32 of the range hood smoke at the same time, so as to ensure that the oil smoke does not escape.

Referring to fig. 5, if the cooking range is operated on the right side and the rice is steamed on the left side, the oil smoke amount on the right side is greater than that on the left side, and the flow rate of the first air inlet 31 is properly reduced by the flow rate control device 4 on the left side, according to the fluid continuity principle, Q is V × S, where Q is the air amount, V is the flow speed, and S is the sectional area. Total air quantity of Q _{General assembly} Invariable, S _{Left side of} Decrease, then Q _{Left side of} Decrease, and Q _{General (1)} ＝Q _{Left side of} +Q _{Right side} I.e. Q _{Right side} The air volume of the second air inlet 32 on the right side is increased, and the smoking effect on the right side is enhanced. Stir-frying on the left side and vice versa.

Referring to fig. 6, assuming that the right side of the cooktop is cooked and the left side is not cooked, the first air inlet 31 is completely closed by the flow control device 4 on the left side.

Referring to fig. 1, the first air inlet 31 and the second air inlet 32 can be completely closed by the left and right flow control devices 4, so as to completely close the air inlet of the range hood, thereby preventing the smell from escaping from the kitchen or the peculiar smell in the range hood from diffusing into the kitchen environment.

Alternatively, the flow control device 4 may take other forms, such as a translational plate, a plate rotating on a plane corresponding to the air inlet, etc., as long as the ventilation area of each air inlet can be changed.

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), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims

1. The utility model provides a range hood, includes box (1) and sets up fan frame (2) in box (1) top, the inboard of fan frame (2) is provided with the fan system, the inboard and the fan system fluid intercommunication of box (1), be provided with air inlet subassembly (3), its characterized in that on box (1):

the air inlet assembly (3) comprises a hollow shell (33), and the shell (33) is rotatably connected with the box body (1) so as to rotate around an axis extending in the left-right direction; the shell (33) is provided with a first air inlet (31) and a second air inlet (32) which are arranged at left and right intervals, and the first air inlet (31) and the second air inlet (32) are both independently communicated with the inner side of the box body (1) through fluid;

the range hood also comprises a flow control device (4) which is arranged at the first air inlet (31) and the second air inlet (32) and is used for changing the ventilation area of the corresponding air inlets so as to control the air inlet flow.

2. The range hood of claim 1, wherein: flow control device (4) include and can open or close the aerofoil subassembly that corresponds the air intake in corresponding air intake department, the aerofoil subassembly includes first aerofoil (41) and second aerofoil (42), first aerofoil (41) and second aerofoil (42) all rotate and set up in the air intake department that corresponds, first aerofoil (41) and second aerofoil (42) set up relatively, first aerofoil (41) and second aerofoil (42) can rotate and close and correspond the air intake towards the inboard of air intake subassembly (3) to and can rotate and open and correspond the air intake towards the outside of air intake subassembly (3).

3. The range hood of claim 2, wherein: first air intake (31) and second air intake (32) all are rectangle, flow control device (4) still include the baffle subassembly, the baffle subassembly is including setting up first baffle (43) on first aerofoil (41) and setting up second baffle (44) on second aerofoil (42), thereby first baffle (43) have two can shelter from the position at first aerofoil (41) both ends on self axis of rotation when first aerofoil (41) are opened, thereby second baffle (44) have two can shelter from the position at second aerofoil (42) both ends on self axis of rotation when second aerofoil (42) are opened.

4. A range hood according to claim 2 or 3, wherein: the flow control device (4) further comprises a movement mechanism for driving the first air plate (41) and the second air plate (42) to act.

5. The range hood of claim 4, wherein: the movement mechanism comprises a linear driving module (45), a first connecting rod (46), a second connecting rod (47) and a third connecting rod (48), the linear driving module (45) is longitudinally arranged on the inner side of the air inlet assembly (3), one end of the first connecting rod (46) is rotatably connected with one end of the second connecting rod (47), the other end of the first connecting rod (46) is rotatably connected with one end of the third connecting rod (48), a body part of the first connecting rod (46) located between the two end parts is connected with an output end of the linear driving module (45), one end, far away from the first connecting rod (46), of the second connecting rod (47) is rotatably connected with the inner side of the first air plate (41), and one end, far away from the first connecting rod (46), of the third connecting rod (48) is rotatably connected with the inner side of the second air plate (42).

6. The range hood of claim 5, wherein: the inboard of first aerofoil (41) is provided with first support (49), the one end and the first support (49) rotation connection of keeping away from first connecting rod (46) of second connecting rod (47), the inboard of second aerofoil (42) is provided with second support (410), the one end and the second support (410) rotation connection of keeping away from first connecting rod (46) of third connecting rod (48).

7. The range hood according to any one of claims 1 to 6, wherein: the first air inlet (31) and the second air inlet (32) are formed in one end, far away from the end connected with the box body (1), of the shell (33).