CN213237689U

CN213237689U - Fume exhaust fan

Info

Publication number: CN213237689U
Application number: CN202021850725.7U
Authority: CN
Inventors: 黄友根; 杨伟刚; 王曼; 李斌
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-05-18
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a range hood, including the oil absorption cigarette subassembly, the oil absorption cigarette subassembly includes casing and the fan system of setting in the casing, its characterized in that: the range hood is characterized in that a shell air inlet is formed in the front side of the shell, the range hood assembly further comprises a turning plate which can turn relative to the shell so as to open or close the shell air inlet, when the turning plate is opened, a smoke collecting cavity is formed between the turning plate and the shell air inlet, the top end of the turning plate is rotatably connected with the top end of the shell, and the range hood further comprises a purification assembly which can purify oil smoke discharged from the range hood assembly. Compared with the prior art, the utility model has the advantages of: the structure is more compact while ensuring the oil smoke absorption effect, and the indoor circulation function is realized.

Description

Fume exhaust fan

Technical Field

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

For example, application No. 96217712.1 discloses an inclined main body of a deep range hood, which comprises a motor, an impeller chamber, an oil collecting cup, a lighting lamp chamber, an oil smoke suction port, a rotary air duct and the like, wherein the oil smoke suction and discharge system is arranged on the upper part of a box body in an inclined plane manner with a front part higher than a rear part and a lower part, the inclined plane has an included angle of 20-75 degrees, the rotary air duct is arranged between the impeller chamber and an upper cover plate, and the lighting lamp chamber and the oil collecting cup are arranged below the impeller chamber.

As shown in the patent, the smoke collection cavity of the range hood is fixed in structure, and the occupied space of the range hood in the front-back direction is large. Most of the oil smoke of the existing range hoods is exhausted outdoors through the smoke exhaust pipe, and the range hoods do not have an indoor circulation function.

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 one kind when ensureing to inhale the oil smoke effect for the structure is more compact, and has indoor circulation function's range hood.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes the range hood subassembly, the range hood subassembly includes casing and the fan system of setting in the casing, its characterized in that: the range hood is characterized in that a shell air inlet is formed in the front side of the shell, the range hood assembly further comprises a turning plate which can turn relative to the shell so as to open or close the shell air inlet, when the turning plate is opened, a smoke collecting cavity is formed between the turning plate and the shell air inlet, the top end of the turning plate is rotatably connected with the top end of the shell, and the range hood further comprises a purification assembly which can purify oil smoke discharged from the range hood assembly.

In order to be able to perform the function of filtering the oil smoke, the purification assembly is arranged at the outlet of the oil smoke absorption assembly, the purification assembly comprises a first filter element for filtering particles and a second filter element for filtering the smell, and the first filter element is located at the upstream of the second filter element on the path of the gas flow.

In order to play a role in shunting and carding and improve the purification efficiency, a flow equalizing device used for shunting and carding the outlet airflow of the oil fume suction assembly to the purification assembly is arranged between the oil fume suction assembly and the purification assembly.

In order to be able to perform the function of split-flow carding and improve the purification efficiency, the flow equalizing device comprises at least one flow equalizing plate extending from the outlet of the oil fume suction assembly to the direction of the first filter element of the purification assembly.

In order to discharge the gas purified by the purification component, the range hood further comprises an air outlet component for discharging the gas purified by the purification component to the indoor.

Preferably, the air outlet assembly comprises a static pressure cavity arranged at the outlet of the purification assembly and an air outlet communicated with the static pressure cavity and used for exhausting air in the static pressure cavity to the indoor.

In order to control the communication and the closing between the purification assembly and the air outlet assembly, the air outlet assembly further comprises a valve for controlling the communication or the closing between the outlet of the purification assembly and the static pressure cavity.

In order to introduce fresh air, the air outlet assembly further comprises a fresh air port which is arranged at the top of the static pressure cavity and used for introducing the fresh air into the static pressure cavity.

The fan system comprises fans which are arranged in parallel from left to right, each fan is provided with a fan air inlet, the shell air inlets are also provided with two fans which are arranged in parallel from left to right, and the fan air inlets are opposite to and directly connected with the shell air inlets on the shell.

Compared with the prior art, the utility model has the advantages of: through the arrangement of the turning plate, when the turning plate is opened, a smoke collecting cavity can be formed between the turning plate and the air inlet of the shell, and when the turning plate is closed when the range hood is shut down, the turning plate can be tightly attached to the front side of the shell, so that the occupied space of the range hood in the front-back direction is reduced; by arranging the purification component, the oil smoke discharged by the oil smoke absorption component can be purified; by arranging the flow equalizing device, the air flow at the outlet of the oil fume suction assembly can be distributed and carded to the purification assembly, so that the purification efficiency is improved; through setting up the air-out subassembly to can arrange the gas after purifying the subassembly to indoor, realize indoor circulation function, and when not culinary art, valve were closed, can realize the function of kitchen new trend, introduce the air-out subassembly and discharge the new trend from the ceiling, keep the fresh of kitchen air.

Drawings

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

fig. 2 is a schematic view of a range hood according to an embodiment of the present invention;

fig. 3 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 4 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 5 is a schematic view of a range hood according to an 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 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 4, a range hood includes a range hood assembly 1 and a fan system 15 disposed in the range hood assembly 1.

Referring to fig. 2 and 5, the range hood assembly 1 includes a housing 11 and a flap 13. The housing 11 is flat and hollow (flat in the front-rear direction), and a housing air inlet 12 is opened at the front side of the housing 11. The flap 13 is rotatably disposed at an opening at the front side of the housing 11, a top end of the flap 13 is rotatably connected to a top end of the housing 11, and a rotation shaft of the flap 13 extends in the left-right direction, so that the flap 13 can open or close the housing air inlet 12. When the turning plate 13 is opened, a smoke collection cavity 14 is formed between the turning plate 13 and the shell air inlet 12. When the range hood shutdown flap 13 is closed, the flap 13 can be tightly attached to the front side of the shell 11, so that the occupied space of the range hood in the front-back direction is reduced. The turning plate 13 can be turned by the prior art, such as a combination of an electric push rod, a motor and a connecting rod.

Referring to fig. 2-4, the fan system 15 is used to provide power for the whole machine to suck oil smoke. Fan system 15 adopts slim design, including two fans 151 of controlling parallel design, every fan 151 all has fan air intake 1511 and fan air outlet 1512, the position of casing air intake 12, quantity and fan air intake 1511 correspond, two fan air intakes 1511 are relative and the lug connection with the casing air intake 12 that corresponds on the casing 11, two fan air outlets 1512 constitute the export of inhaling oil smoke subassembly 1, two fans 151 of controlling parallel design, make whole casing air intake 12 negative pressure evenly distributed, and then promote and inhale oil smoke effect, and also more compact in structure. In this embodiment, the fan system 15 is located below the cabinet, and this type of fan arrangement can move the negative pressure region downward, thereby improving the oil smoke absorption capacity and the oil smoke absorption speed of the range hood.

Referring to fig. 3 to 4, the range hood further includes a purification assembly 2 capable of purifying the oil smoke discharged from the oil smoke absorption assembly 1. The purification assembly 2 is arranged at the outlet of the extractor hood assembly 1, the purification assembly 2 comprising a first filter 21 for filtering the particulate matter (fine particles) and a second filter 22 for filtering the odours, the first filter 21 being located upstream of the second filter 22 on the path of the gas flow. Preferably, the first filter member 21 is an electrostatic separation device, and the second filter member 22 is a honeycomb filter.

A flow equalizing device 3 for distributing and carding the outlet airflow of the oil fume suction assembly 1 is arranged between the oil fume suction assembly 1 and the purifying assembly 2. The flow equalizing device 3 comprises at least one flow equalizing plate 31 extending from the outlet of the range hood assembly 1 in the direction of the first filter 21 of the purification assembly 2. The flow equalizing plate 31 extends from the end close to the outlet of the range hood assembly 1 to the end close to the outlet of the range hood assembly 2, and gradually extends towards the outer periphery of the outlet of the range hood assembly 1, so that the air flow is guided from the outlet of the range hood assembly 1 with a small area to the inlet of the range hood assembly 2 with a large area. The flow equalizing plate 31 preferably has at least two pieces, symmetrically arranged with respect to the outlet of the range hood assembly 1. When the number of the flow equalizing plates 31 on each side is more than or equal to 2, the flow equalizing plates 31 on each side are uniformly arranged at intervals to uniformly guide the air flow to the purifying module 2.

Referring to fig. 1 to 3 and 5, the range hood further includes an air outlet assembly 4 for discharging the gas purified by the purifying assembly 2 into the room. The air outlet assembly 4 comprises a static pressure cavity 41 arranged at the outlet of the purification assembly 2 and an air outlet assembly air outlet 42 communicated with the static pressure cavity 41 and used for discharging air in the static pressure cavity 41 to the indoor, and the air outlet assembly air outlet 42 is respectively positioned at the front side, the bottom and the left side and the right side of the static pressure cavity 41. The air outlet assembly 4 further comprises a valve 43 for controlling the communication or the closing between the outlet of the purification assembly 2 and the static pressure chamber 41, and the valve 43 is preferably an electric valve. The air outlet assembly 4 further includes a fresh air inlet 44 provided at the top of the static pressure chamber 41 and used for introducing fresh air into the static pressure chamber 41. In order to introduce fresh air better, a fresh air blower may be provided at the fresh air inlet 44.

When cooking, the valve 43 is opened, and the oil smoke is exhausted through the oil smoke absorption component 1, the purification component 2 and the air outlet component 4 to form indoor circulation; when not cooking, valve 43 closes, can realize the function of kitchen new trend, introduces air-out subassembly 4 and discharges the new trend from the ceiling, keeps the fresh of kitchen air.

The utility model discloses a stage filtration, compound thinking that purifies, condensation through front end (the impeller of fan 151) purifies, centrifugal separation, get rid of big particulate matter, 3 reposition of redundant personnel carding runners of flow straightener at 15 rear ends of rethread fan system, later through first filtration piece 21 (electrostatic separation device) separation fine particles thing, filter the smell pollutant through the second filtration piece 22 (cellular filter screen), the clean air that will purify at last is arranged to indoor from air-out subassembly 4, form the indoor circulation.

Claims

1. The utility model provides a range hood, includes oil absorption cigarette subassembly (1), oil absorption cigarette subassembly (1) includes casing (11) and sets up fan system (15) in casing (11), its characterized in that: the range hood is characterized in that a shell air inlet (12) is formed in the front side of the shell (11), the range hood assembly (1) further comprises a turning plate (13) which can be turned relative to the shell (11) to open or close the shell air inlet (12), when the turning plate (13) is opened, a smoke collecting cavity (14) is formed between the turning plate (13) and the shell air inlet (12), the top end of the turning plate (13) is rotatably connected with the top end of the shell (11), and the range hood further comprises a purification assembly (2) which can purify oil smoke discharged from the range hood assembly (1).

2. The range hood of claim 1, wherein: the purification assembly (2) is arranged at the outlet of the extractor hood assembly (1), the purification assembly (2) comprising a first filter element (21) for filtering the particles and a second filter element (22) for filtering the odours, the first filter element (21) being located upstream of the second filter element (22) on the path of the gas flow.

3. The range hood of claim 2, wherein: and a flow equalizing device (3) for distributing and carding the outlet airflow of the oil fume suction assembly (1) is arranged between the oil fume suction assembly (1) and the purification assembly (2).

4. The range hood of claim 3, wherein: the flow equalizing device (3) comprises at least one flow equalizing plate (31) extending from the outlet of the oil fume suction assembly (1) to the direction of the first filter element (21) of the purification assembly (2).

5. The range hood of claim 1, wherein: the range hood also comprises an air outlet assembly (4) for discharging the gas purified by the purification assembly (2) to the indoor.

6. The range hood of claim 5, wherein: the air outlet assembly (4) comprises a static pressure cavity (41) arranged at the outlet of the purification assembly (2) and an air outlet assembly air outlet (42) communicated with the static pressure cavity (41) and used for discharging air in the static pressure cavity (41) to the indoor.

7. The range hood of claim 6, wherein: the air outlet assembly (4) further comprises a valve (43) used for controlling the communication or the closing between the outlet of the purification assembly (2) and the static pressure cavity (41).

8. The range hood of claim 7, wherein: the air outlet assembly (4) further comprises a fresh air inlet (44) which is arranged at the top of the static pressure cavity (41) and used for introducing fresh air into the static pressure cavity (41).

9. The range hood according to any one of claims 1 to 8, wherein: the fan system (15) comprises fans (151) which are arranged in parallel from left to right, each fan (151) is provided with a fan air inlet (1511), the shell air inlet (12) is also provided with two fans which are arranged in parallel from left to right, and the fan air inlets (1511) are opposite to and directly connected with the shell air inlets (12) on the shell (11).