CN213777832U

CN213777832U - Fume exhaust fan

Info

Publication number: CN213777832U
Application number: CN202022408055.XU
Authority: CN
Inventors: 余旭锋; 马志豪; 申志贤; 时璐璐
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-07-23
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a range hood, including casing and the panel of setting in the casing front side, the air intake has been seted up on the panel, its characterized in that: the air inlet is provided with an oil guide plate, and the oil guide plate extends downwards from the upper edge of the air inlet. Compared with the prior art, the utility model has the advantages of: the oil guide plate is arranged at the air inlet and extends downwards from the upper edge of the air inlet, so that on one hand, an oil screen can be removed, the area of the air inlet is enlarged, the resistance of the air inlet is greatly reduced, the air volume increasing and noise reducing effects are achieved, and the user experience is greatly improved; on the other hand, the problem that oil smoke on two sides escapes is solved by reducing the area of the air inlet to improve the air speed.

Description

Fume exhaust fan

Technical Field

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

Background

The fume exhaust fan is one kitchen appliance for purifying kitchen environment and can exhaust the waste gas produced by burning kitchen range and fume produced during cooking fast to reach the aim of purifying kitchen environment. In the process of sucking the oil smoke, a part of the oil smoke can directly enter the fan system and then is discharged outdoors, and a part of the oil smoke is diffused inside the range hood and can be condensed and adhered to the metal surface inside the range hood. Therefore, the reasonable design of the internal oil circuit of the range hood and the guarantee that the oil can be smoothly guided into the oil cup are the technical difficulties of the range hood.

The existing oil guide structure, such as that disclosed in chinese patent application No. 201320641396.9, is a three-section panel structure with an air inlet in the middle, and in order to solve the problem of oil guide at the upper panel, a grid-type air inlet form is adopted at the middle part, and oil at the upper panel can flow into the lower panel through the grid and finally be guided into the oil cup; also, as disclosed in the chinese patent application with application number 201320643587.9, a range hood has a net detaching structure, in which a detachable oil net is disposed at an air inlet, the main function of the oil net is to guide oil, and the detaching is to allow a user to detach and clean the oil net. Among the above-mentioned prior art, the fan is located the intermediate position in the casing, and its effect is mainly that draw the oil smoke of left and right sides to the centre fast and smoke.

In the two prior arts, an oil guide component, namely an oil screen, is added at the air inlet, which causes the area of the air inlet to be reduced, greatly increases the resistance of the air inlet, causes the air quantity loss and the noise to be increased, and causes the user experience to be reduced; after long-term use, oil smoke impurities can be spread on the oil net, and the oil smoke impurities can be seen by a user, so that the dirty feeling is brought to the user, the user is forced to clean the oil net, and the user experience is reduced; when the oil screen is not detachable, a user cannot clean the internal area of the oil screen, so that the cleaning experience of the user is poor; if the oil screen is detachable, although the user can clean the inside, the user must detach the oil screen first, so that the oil screen is cumbersome to detach and the cleaning experience of the user is poor; in addition, because the fan is arranged in the middle, the air quantity in the middle of the air inlet is large, and the air quantities on two sides are small, and the oil smoke on two sides can easily escape under the condition of severe working conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a range hood, increase the air intake area, reduce the resistance of air intake, have the effect of making an uproar of carrying the amount of wind, promote user experience.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes casing and the panel of setting in the casing front side, the air intake has been seted up on the panel, its characterized in that: the air inlet is provided with an oil guide plate, and the oil guide plate extends downwards from the upper edge of the air inlet.

Furthermore, the bottom edge of the oil guide plate gradually inclines downwards from the middle to the left side and the right side, so that the oil guide plate can flow to the bottom along the trend when oil is accumulated on the front surface of the oil guide plate, and can guide to the left side and the right side due to the guiding effect of the inclined structure of the bottom edge after reaching the bottom; on the other hand, the oil guide plate is small in the middle and large in two sides, and when the oil guide plate corresponds to the oil guide plate, the air inlet area of the middle is large, the air inlet areas of the two sides are small, so that the air speed of the two sides can be increased under the same flow, and the problem that oil smoke on the left side and the right side escapes is solved.

Preferably, an included angle alpha is formed between the top edge of the oil guide plate and the bottom edge of the oil guide plate, and the value range of alpha is more than or equal to 10 degrees and less than or equal to 30 degrees.

For avoiding fluid drippage, the base of leading the oiled-plate is still backward and upwards buckle and be formed with and lead the oil strip, lead the oiled-plate towards one side in the casing and lead and form the oil trap between the oil strip.

Preferably, the oil guide plate and the oil guide strip are integrally formed to avoid leakage and facilitate manufacturing.

Preferably, in order to reduce the probability of oil accumulation at the outer side of the oil collecting groove, an included angle beta is formed between the oil guide plate and the oil guide strips, and the value range of the beta is beta-43 degrees or less

Preferably, the air inlet is formed in the middle of the panel in the vertical direction.

Compared with the prior art, the utility model has the advantages of: the oil guide plate is arranged at the air inlet and extends downwards from the upper edge of the air inlet, so that on one hand, an oil screen can be removed, the area of the air inlet is enlarged, the resistance of the air inlet is greatly reduced, the air volume increasing and noise reducing effects are achieved, and the user experience is greatly improved; on the other hand, the problem of oil smoke escape at two sides is solved by reducing the area of the air inlet to improve the air speed; the bottom edge of the oil guide plate gradually inclines downwards from the middle to the left side and the right side, when oil is accumulated on the front surface of the oil guide plate, the oil guide plate can flow to the bottom along the same direction, and can guide to the left side and the right side due to the guiding function of the inclined structure of the bottom edge after reaching the bottom, so that the problem that oil stains drip on a cooking bench is solved; the oil collecting groove is arranged at the rear part of the bottom edge of the oil guide plate, and the probability of oil accumulation outside the oil collecting groove edge is reduced according to the air inlet condition of a flow field.

Drawings

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

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

FIG. 3 is an enlarged view of a portion I of FIG. 2;

fig. 4 is a schematic view of an oil guide plate of a range hood according to an 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 "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 and 2, a range hood is a side-draft range hood, and includes a housing 1 and a panel 2 disposed at the front side of the housing 1, an air inlet 21 is disposed on the panel 2, a smoke barrier 3 is disposed at the air inlet 21, and the smoke barrier 3 can turn over to open or close the air inlet 21. In the present embodiment, the air inlet 21 is provided at a position intermediate to the top and bottom of the panel 2.

The air inlet 21 is further provided with an oil guide plate 4, and the oil guide plate 4 extends downwards from the upper edge of the air inlet 21 of the panel 2. Referring to fig. 1 and 4, the bottom edge of the oil guide plate 4 extends from the middle to the left and right sides and gradually inclines downward. An included angle alpha is formed between the top edge (preferably horizontal) of the oil guide plate 4 and the bottom edge of the oil guide plate 4, and the value range of alpha is preferably more than or equal to 10 degrees and less than or equal to 30 degrees. On one hand, when the oil guide plate 4 is accumulated on the front surface, the oil guide plate can flow to the bottom along the same direction, and can guide to the left side and the right side due to the guiding function of the inclined structure of the bottom edge after reaching the bottom; on the other hand, the oil guide plate 4 is small in the middle and large in two sides, and when the oil guide plate corresponds to the oil guide plate, the air inlet area of the middle is large, the air inlet areas of the two sides are small, so that the air speed of the two sides can be increased under the same flow rate, and the problem of oil smoke escape from the left side and the right side is solved. The left side and the right side of the oil guide plate 4 are perpendicular to the top edge, so that the oil guide plate 4 forms a left right triangle.

Referring to fig. 2 to 4, the bottom edge of the oil guide plate 4 is also bent backwards and upwards to form an oil guide strip 5, and the oil guide plate 4 and the oil guide strip 5 are preferably integrally formed. An oil collecting groove 6 is formed between one side of the oil guide plate 4 facing the inside of the shell 1 and the oil guide strip 5. An included angle beta is formed between the oil guide plate 4 and the oil guide strips 5, preferably, the value range of beta is not more than 43 degrees, and the probability of oil accumulation outside the edge of the oil collecting groove 6 is reduced according to the air inlet condition of a flow field.

Claims

1. The utility model provides a range hood, includes casing (1) and panel (2) of setting in casing (1) front side, air intake (21), its characterized in that have been seted up on panel (2): the oil guide plate (4) is arranged at the air inlet (21), and the oil guide plate (4) extends downwards from the upper edge of the air inlet (21).

2. The range hood of claim 1, wherein: the bottom edge of the oil guide plate (4) gradually inclines downwards from the middle to the left side and the right side.

3. The range hood of claim 2, wherein: an included angle alpha is formed between the top edge of the oil guide plate (4) and the bottom edge of the oil guide plate (4), and the value range of alpha is more than or equal to 10 degrees and less than or equal to 30 degrees.

4. The range hood according to any one of claims 1 to 3, wherein: the bottom edge of the oil guide plate (4) is bent backwards and upwards to form an oil guide strip (5), and an oil collecting groove (6) is formed between one side of the oil guide plate (4) facing the inside of the shell (1) and the oil guide strip (5).

5. The range hood of claim 4, wherein: the oil guide plate (4) and the oil guide strips (5) are integrally formed.

6. The range hood of claim 4, wherein: an included angle beta is formed between the oil guide plate (4) and the oil guide strips (5), and the value range of beta is not more than 43 degrees.

7. The range hood according to any one of claims 1 to 3, wherein: the air inlet (21) is formed in the middle of the panel (2) in the vertical direction.