CN217274382U

CN217274382U - Fume exhaust fan

Info

Publication number: CN217274382U
Application number: CN202220768627.1U
Authority: CN
Inventors: 唐兴旺; 袁柯铭
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-08-23
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a range hood, including box and the fan frame of setting in the box top, be provided with the fan system in the fan frame, 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 subassembly is including being located left first air inlet plate and being located the second air inlet plate on right side, first air inlet plate and second air inlet plate all are hollow cylindricly, the inboard of first air inlet plate and second air inlet plate all communicates with the inboard fluid of box, the peripheral wall face of first air inlet plate has the breach and forms first air intake, the peripheral wall face of second air inlet plate has the breach and forms the second air intake, first air intake and second air intake homoenergetic rotate around respective center pin and can hide in the inboard of box or expose from the box. Compared with the prior art, the utility model has the advantages of: the oil smoke suction effect can be enhanced through the flow distribution of the left side and the right side.

Description

Fume exhaust fan

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 is used for sucking oil smoke from an air inlet through the impeller rotating at a high speed in the volute, filtering the oil smoke by using the impeller and discharging the filtered oil smoke from the air outlet, the purification work of kitchen air is completed, the reasonable air inlet is favorable for improving the oil smoke absorption 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 a common household cooker is usually divided into a left burner and a right burner, a user sometimes only uses the burner on one side and sometimes uses both sides simultaneously in the cooking process, but the household cooker can often only fry on one side of the burner which can generate a large amount of oil smoke. If the user only uses the left furnace end to cook 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 trend of the range hood are necessarily much larger than those of the right side, so that the oil smoke escape frequently occurs in the quick-frying cooking process. 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 strengthen the oil absorption cigarette effect 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, be provided with the fan system in the fan frame, 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 first air inlet plate positioned on the left side and a second air inlet plate positioned on the right side, the first air inlet plate and the second air inlet plate are both in hollow cylindrical shapes, and the inner sides of the first air inlet plate and the second air inlet plate are both communicated with the inner side fluid of the box body;

the periphery wall face of first air inlet board has the breach and forms first air intake, the periphery wall face of second air inlet board has the breach and forms the second air intake, first air intake and second air intake homoenergetic rotate around respective center pin and can hide in the inboard of box or expose from the box.

In order to be closer to a smoke source, the first air inlet plate and the second air inlet plate are arranged at the bottom of the box body, and central shafts of the first air inlet plate and the second air inlet plate extend in the left-right direction.

In order to drive the first air inlet plate and the second air inlet plate to rotate, the air inlet assembly further comprises a first motor for driving the first air inlet plate to rotate and a second motor for driving the second air inlet plate to rotate.

In order to improve the cigarette gathering performance, the left side end face of the first air inlet plate forms a first side baffle for gathering cigarettes, and the right side end face of the second air inlet plate forms a second side baffle for gathering cigarettes.

In order to enable the air inlet plates to be in fluid communication with the inner side of the box body, a first air outlet is formed in the right end of the first air inlet plate, a second air outlet is formed in the left end of the second air inlet plate, and the first air outlet and the second air outlet are both in fluid communication with the inner side of the box body.

In order to ensure that oil smoke enters from the air inlets of the air inlet plates and is convenient for closing a smoke suction path, the lower end part of the box body is open, the diameter of each air inlet plate is matched with the width of the lower end part of the box body, and the central shaft of each air inlet plate is positioned in the middle of the lower end part of the box body in the width direction.

In order to achieve a better flow distribution effect, the air inlet assembly further comprises a flow distribution device arranged between the first air inlet plate and the second air inlet plate, the inner side of the flow distribution device is in fluid communication with the inner side of the box body, the left side of the flow distribution device is in fluid communication with the first air outlet on the first air inlet plate, and the right side of the flow distribution device is in fluid communication with the second air outlet on the second air inlet plate.

Compared with the prior art, the utility model has the advantages of: through first air intake and second air intake axial rotation and can hide in the inboard of box or expose from the box to can distribute the flow of left and right sides, need not promote total amount of wind, when solving the cooking of unilateral stir-fry, the homonymy of the range hood that corresponds with it can promote the oil absorption cigarette effect by a wide margin.

Drawings

Fig. 1 is a schematic view of a range hood according to an embodiment of the present invention when a first air inlet plate and a second air inlet plate are completely opened;

fig. 2 is a schematic view of the range hood according to the embodiment of the present invention when the first air inlet plate and the second air inlet plate are closed;

fig. 3 is an exploded view of the range hood according to the embodiment of the present invention;

fig. 4 is a schematic view of a first air inlet plate of the range hood according to the embodiment of the present invention;

fig. 5 is a cross-sectional view of the range hood according to the embodiment of the present invention when the first air inlet plate is closed;

fig. 6 is a sectional view of the range hood according to the embodiment of the present invention when the first air inlet plate is partially opened;

fig. 7 is a cross-sectional view of the range hood according to the embodiment of the present invention when the first air inlet plate is fully opened;

fig. 8 is a schematic view of the range hood according to the embodiment of the present invention when the first air inlet plate is partially opened and the second air inlet plate is fully opened;

fig. 9 is a rear sectional view of the range hood according to the embodiment of the present invention.

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 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. 9, a range hood includes a box 1 and a fan frame 2 disposed above the box 1. A fan system 3 is arranged in the fan frame 2, and the inner side of the box body 1 is communicated with the fan system 3 through fluid. The lower end of the box body 1 is open, and the length direction is the left-right direction in this embodiment, the lower end of the box body 1 is bent forward relative to the transition part of the box body 1.

Referring to fig. 1 to 8, an air intake assembly is disposed at the bottom of the box body 1, and includes a first air intake plate 41 located at the left side, a second air intake plate 42 located at the right side, and a flow distribution device 45 disposed between the first air intake plate 41 and the second air intake plate 42. The first air inlet plate 41, the second air inlet plate 42, and the flow distribution device 45 are each hollow cylindrical, and the central axis of each cylinder extends in the left-right direction.

The outer peripheral wall of the first air inlet plate 41 has a notch to form a first air inlet 411, and the outer peripheral wall of the second air inlet plate 42 has a notch to form a second air inlet 421. Preferably, in this embodiment, each of the first air inlet 411 and the second air inlet 421 is in the shape of a notch of 180 ° and extends in the entire axial direction of each air inlet plate. A first side baffle 412 for collecting smoke is formed on the end surface (left end surface) of the first air inlet plate 41 far away from the second air inlet plate 42, and a second side baffle 422 for collecting smoke is formed on the end surface (right end surface) of the second air inlet plate 42 far away from the second air inlet plate 42. The right end of the first air inlet plate 41 is provided with a first air outlet 413, and the left end of the second air inlet plate 42 is provided with a second air outlet 423. The left side of the flow distribution device 45 is in fluid communication with the first outlet 413 on the first air inlet plate 41, the right side of the flow distribution device 45 is in fluid communication with the second outlet 423 on the second air inlet plate 42, and the inside of the flow distribution device 45 is in fluid communication with the inside of the cabinet 1.

The air intake assembly further includes a first motor 43 for driving the first air intake plate 41 to rotate and a second motor 44 for driving the second air intake plate 42 to rotate. The first motor 43 is arranged at the left side of the bottom of the box body 1, the output shaft of the first motor 43 is in transmission connection with the center of the first side baffle 412 of the first air inlet plate 41, and the right side of the first air inlet plate 41 is in rotary connection with the left side of the flow distribution device 45. The second motor 44 is arranged at the right side of the bottom of the box body 1, an output shaft of the second motor 44 is in transmission connection with the center of the second side baffle 422 of the second air inlet plate 42, and the left side of the second air inlet plate 42 is in rotary connection with the right side of the flow distribution device 45.

The diameters of the air inlet plates are preferably adapted to the width of the lower end portion of the cabinet 1, where adapted means equal or nearly equal, and the central axes of the air inlet plates are located at the middle position in the width direction of the lower end portion of the cabinet 1, so that the oil smoke can only enter from the first air inlet 411 and the second air inlet 421, but not from the gap between the air inlet plates and the lower end portion of the cabinet 1.

Referring to fig. 1, when two burners of two cookers cook simultaneously, the first air inlet plate 41 and the second air inlet plate 42 are completely opened to form a semi-cylindrical concave surface, the semi-cylindrical concave surface forms a cage smoke cavity, the first side baffle 412 of the first air inlet plate 41 and the second side baffle 422 of the second air inlet plate 42 have a positive effect on collecting smoke on the left side and the right side of the range hood, and at the same time, both sides of the range hood smoke simultaneously to ensure that the smoke does not escape.

Referring to fig. 7, when only left cooking is performed, the first air inlet plate 41 is opened, the second air inlet plate 42 is closed, and fluid enters the range hood from the left side, so that left cooking does not escape.

Referring to fig. 8, assuming that the right side of the cooking range is stir-fried for cooking and the left side is used for steaming, as for the range hood, the oil smoke amount on the right side is greater than that on the left side, the first air inlet 411 of the first air inlet plate 41 is properly reduced through the switch key, and according to the fluid continuity principle, Q is V × S, where Q is the air volume, V is the flow velocity, and S is the sectional area. Total air quantity Q is always unchanged, S _{Left side of} Decrease, then Q _{Left side of} Decrease, and Q _{General assembly} ＝Q _{Left side of} +Q _{Right side} I.e. Q _{Right side} The air volume of the second air inlets 421 of the second air inlet plate 42 is increased, and the smoking effect on the right side is enhanced. Stir-frying on the left side and vice versa.

Referring to fig. 2, the first air inlet plate 41 and the second air inlet plate 42 can be completely closed, that is, the first air inlet 411 and the second air inlet 421 rotate to completely face one side in the box body 1, and the peripheral wall surfaces of the first air inlet plate 41 and the second air inlet 42 shield opposite sides of the lower end portion of the box body 1 in the width direction.

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, be provided with fan system (3) in fan frame (2), the inboard and fan system (3) fluid intercommunication of box (1), be provided with air inlet subassembly, its characterized in that on box (1):

the air inlet assembly comprises a first air inlet plate (41) positioned on the left side and a second air inlet plate (42) positioned on the right side, the first air inlet plate (41) and the second air inlet plate (42) are both hollow cylindrical, and the inner sides of the first air inlet plate (41) and the second air inlet plate (42) are both communicated with the inner side fluid of the box body (1);

the periphery wall face of first air inlet plate (41) has the breach and forms first air intake (411), the periphery wall face of second air inlet plate (42) has the breach and forms second air intake (421), first air intake (411) and second air intake (421) homoenergetic are through rotating around respective center pin and can be hidden in the inboard of box (1) or expose from box (1).

2. The range hood of claim 1, wherein: the first air inlet plate (41) and the second air inlet plate (42) are arranged at the bottom of the box body (1), and the central shafts of the first air inlet plate (41) and the second air inlet plate (42) extend in the left-right direction.

3. The range hood of claim 1, wherein: the air inlet assembly further comprises a first motor (43) for driving the first air inlet plate (41) to rotate and a second motor (44) for driving the second air inlet plate (42) to rotate.

4. The range hood according to any one of claims 1 to 3, wherein: the left side end face of the first air inlet plate (41) forms a first side baffle (412) used for gathering cigarettes, and the right side end face of the second air inlet plate (42) forms a second side baffle (422) used for gathering cigarettes.

5. The range hood according to any one of claims 1 to 3, wherein: the right end of the first air inlet plate (41) is provided with a first air outlet (413), the left end of the second air inlet plate (42) is provided with a second air outlet (423), and the first air outlet (413) and the second air outlet (423) are both communicated with the inner side of the box body (1) through fluid.

6. The range hood of claim 5, wherein: the lower end part of the box body (1) is open, the diameter of each air inlet plate is matched with the width of the lower end part of the box body (1), and the central shaft of each air inlet plate is positioned in the middle of the lower end part of the box body (1) in the width direction.

7. The range hood of claim 6, wherein: the air inlet assembly further comprises a flow distribution device (45) arranged between the first air inlet plate (41) and the second air inlet plate (42), the inner side of the flow distribution device (45) is communicated with the inner side of the box body (1) through fluid, the left side of the flow distribution device (45) is communicated with the first air outlet (413) on the first air inlet plate (41) through fluid, and the right side of the flow distribution device (45) is communicated with the second air outlet (423) on the second air inlet plate (42) through fluid.