CN219868023U

CN219868023U - Fume exhauster

Info

Publication number: CN219868023U
Application number: CN202223591398.XU
Authority: CN
Inventors: 朱阿蕾; 徐鑫; 陈浩辉
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-10-20
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a range hood, which comprises a fan frame (1), a fume collecting hood (2) and an oil cup (3), and further comprises an oil guide groove (44) which is at least partially positioned on the inner wall of a first accommodating cavity (11) of the fan housing (1), wherein the position of an oil guide outlet of the oil guide groove (44) is higher than the position of the oil cup (3), so that the oil cup (3) directly or indirectly receives oil stains flowing down from the oil guide outlet of the oil guide groove (44). By arranging the oil guide groove at least partially positioned on the inner wall of the first accommodating cavity of the fan housing, the flow guide structure in the fume collecting hood can be simplified and even cancelled, thereby providing technical support for reducing the height of the fume collecting hood and manufacturing the ultra-thin fume extractor.

Description

Fume exhauster

Technical Field

The utility model relates to the technical field of oil fume purification, in particular to a range hood.

Background

The fume exhauster is one kitchen appliance for purifying kitchen environment, and has the functions of exhausting fume produced during the burning of kitchen range and cooking process, reducing pollution, purifying air, etc.

For example, chinese application No. CN201710736770.6 (publication No. CN109425002 a) discloses a range hood comprising a fan housing, a fan system is provided inside the fan housing, a smoke collecting hood and a smoke guide plate are provided below the fan housing, an oil filter screen is provided above the smoke guide plate, an oil cup is provided below the rear side of the smoke collecting hood, a lower protrusion is provided at the bottom of the rear side of the smoke collecting hood, the lower protrusion is in a strip shape and distributed along the left-right direction, the oil cup is mounted at the bottom of the lower protrusion, the smoke guide plate is inclined downward obliquely from front to back, the rear part of the smoke guide plate is adjacent to the front side of the lower protrusion, and the rear part of the smoke guide plate is above the oil cup. The range hood is matched with the inclined smoke guide plate through the lower convex part at the bottom of the rear side of the smoke collecting hood, under the condition of ensuring the smoke absorbing effect of the front side of the smoke collecting hood, a more effective rear-side reinforced type oil absorbing and guiding structure is formed, the air inlet quantity of the rear parts of the left side and the right side is increased, the escape of the smoke at the rear parts of the left side and the right side of the smoke collecting hood is reduced, and meanwhile, the surface condensate oil attached to the left corner and the right corner of the smoke collecting hood is led into an oil cup through the lower convex part.

However, the above patent does not disclose how the oil dirt flowing down from the inner wall of the fan housing is guided;

in addition, the current flow guiding structure of the patent needs to occupy a larger height of the space in the fume collecting hood, but the flow guiding structure cannot be well applied to a thin fume extractor with a smaller height of the fume collecting hood.

Thus, continued improvement is desired.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a range hood which is convenient for guiding oil dirt flowing down from the inner wall of a fan housing towards an oil cup.

The utility model adopts the technical proposal for solving the technical problems that: a range hood comprises

A fan housing having a first receiving cavity;

a fume collecting hood arranged below the fan housing and provided with a second accommodating cavity which is in fluid communication with the first accommodating cavity of the fan housing;

the oil cup is arranged on the fume collecting hood and is adjacent to the bottom;

the method is characterized in that:

the fan housing further comprises an oil guide groove which is at least partially positioned on the inner wall of the first accommodating cavity of the fan housing, and the position of an oil guide outlet of the oil guide groove is higher than that of the oil cup, so that the oil cup directly or indirectly receives oil dirt flowing down from the oil guide outlet of the oil guide groove.

In order to facilitate the oil dirt in the oil guiding groove to directly flow into the oil cup, the groove body of the oil guiding groove gradually inclines downwards from front to back, and the oil guiding outlet of the oil guiding groove is positioned above the oil cup, so that the oil cup directly receives the oil dirt directly from the oil guiding outlet of the oil guiding groove.

For the range hood with the oil guide structure on the fume collecting hood and guiding the oil dirt to flow into the oil cup, the oil guide outlet of the oil guide groove can be communicated with the oil guide structure, so that the oil dirt in the oil guide groove indirectly flows into the oil cup through the oil guide structure of the fume collecting hood.

Preferably, the inclination angle of the tank bottom of the tank body of the oil guide tank relative to the horizontal plane is alpha, and alpha is more than or equal to 3 degrees and less than or equal to 7 degrees. Therefore, the oil stain in the oil guide groove conveniently flows into the oil cup, and meanwhile, the inclination angle of the oil guide groove is smaller, so that the height of the space in the fume collecting hood is smaller, and the fume collecting hood is suitable for a thin range hood.

The structure of the oil guide groove can be various, and preferably, in order to collect more greasy dirt which drips from the inner wall of the first accommodating cavity of the fan housing, the cross section of the fan housing is rectangular;

the groove body of the oil guide groove comprises a first section connected with the left inner wall of the first accommodating cavity of the fan housing, a second section connected with the right inner wall of the first accommodating cavity of the fan housing, and a third section respectively communicated with the first section and the second section, wherein the third section is connected with the front inner wall of the first accommodating cavity of the fan housing;

the oil cup is positioned below the inner wall of the rear side of the first accommodating cavity of the fan housing.

For exhausting the oil fume, the centrifugal fan also comprises a groove body which is arranged in the first accommodating cavity of the fan housing and is higher than the oil guiding groove (44). And the oil smoke is discharged through the action of the centrifugal fan.

In order to accept the greasy dirt that drops from centrifugal fan, still include setting up in the first accommodation chamber of fan housing and be located centrifugal fan and the guide plate between the cell body of oil groove, this guide plate's part is located directly over the oil cup and is used for the oil guide to the oil cup that drops from centrifugal fan. Thus, the oil dirt dropped from the centrifugal fan flows into the oil cup through the action of the guide plate.

In order to facilitate the outflow of the oil dirt in the centrifugal fan, the centrifugal fan comprises a volute, wherein the bottom of the volute is provided with an oil drain hole penetrating through the wall of the volute and used for draining the oil dirt in the volute, and the oil drain hole is aligned with the guide plate in the up-down direction. Thus, the greasy dirt in the volute flows out to the guide plate through the oil drain hole and then flows into the oil cup through the guide plate.

Compared with the prior art, the utility model has the advantages that: by arranging the oil guide groove which is at least partially positioned on the inner wall of the first accommodating cavity of the fan housing, the oil stain flowing down from the inner wall of the fan housing is conveniently guided towards the oil cup, and the inner guide structure of the fume collecting hood can be simplified and even cancelled, thereby providing technical support for reducing the height of the fume collecting hood and manufacturing the ultra-thin fume extractor.

Drawings

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

fig. 2 is a schematic view of the range hood of fig. 1 at another angle (with the baffle removed);

fig. 3 is a cross-sectional view of the range hood of fig. 2 taken along A-A;

fig. 4 is a partial cross-sectional view of the range hood of fig. 1 (with the baffle removed);

fig. 5 is a partial cross-sectional view of the range hood of fig. 1.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Referring to fig. 1 to 5, a preferred embodiment of the range hood according to the present utility model is shown. The range hood comprises a fan housing 1, a fume collecting hood 2, an oil cup 3, a centrifugal fan 5, a guide plate 6 and other main components.

The fan housing 1 has a first receiving space 11, and the cross section of the fan housing 1 is rectangular.

The fume collecting hood 2 is arranged below the fan housing 1 and has a second receiving chamber 21 in fluid communication with the first receiving chamber 11 of the fan housing 1.

The oil cup 3 is arranged on the fume collecting hood 2 near the bottom; the oil cup 3 is located below the rear inner wall of the first accommodation chamber 11 of the blower housing 1.

The oil guiding groove 44 is partially located on the inner wall of the first accommodating chamber 11 of the fan housing 1, and the oil guiding outlet of the oil guiding groove 44 is located higher than the oil cup 3 so that the oil cup 3 directly or indirectly receives the oil dirt flowing down from the oil guiding outlet of the oil guiding groove 44. Specifically, the tank body 4 of the oil guiding tank 44 is gradually inclined downward from front to back, and the oil guiding outlet of the oil guiding tank 44 is located above the oil cup 3, so that the oil cup 3 directly receives the oil stain flowing down from the oil guiding outlet of the oil guiding tank 44. The inclination angle of the bottom of the tank body 4 relative to the horizontal plane is alpha, and alpha is more than or equal to 3 degrees and less than or equal to 7 degrees. Specifically, the tank body 4 of the oil guide groove 44 includes a first section 41 connected to the left inner wall of the first accommodation chamber 11 of the blower housing 1, a second section 42 connected to the right inner wall of the first accommodation chamber 11 of the blower housing 1, and a third section 43 respectively communicating with the first section 41 and the second section 42, the third section 43 being connected to the front inner wall of the first accommodation chamber 11 of the blower housing 1.

The centrifugal fan 5 is disposed in the first accommodation chamber 11 of the fan housing 1 at a position higher than the tank body 4. Specifically, the centrifugal fan 5 includes a scroll casing 51, the bottom of which scroll casing 51 has an oil discharge hole 511 penetrating its casing wall for discharging oil dirt in the scroll casing 51, the oil discharge hole 511 being aligned with the baffle plate in the up-down direction.

A deflector 6 is arranged in the first accommodation chamber 11 of the fan housing 1 between the centrifugal fan 5 and the tank 4, which deflector 6 is located locally directly above the oil cup 3 for guiding oil dripping from the centrifugal fan 5 to the oil cup 3.

In other embodiments, the oil dirt flowing from the oil guiding outlet of the oil guiding groove 44 may also flow to the oil cup indirectly through the oil guiding structure, for example, for a range hood with the oil guiding structure on the fume collecting hood itself and guiding the oil dirt to flow into the oil cup, the oil guiding outlet of the oil guiding groove may also be communicated with the oil guiding structure, so that the oil dirt in the oil guiding groove flows into the oil cup indirectly through the oil guiding structure on the fume collecting hood itself. In other embodiments, the oil guiding groove 44 may be integrally formed on the inner wall of the first accommodating chamber 11 of the blower housing 1.

The operating principle and the using method of the range hood are as follows.

After the centrifugal fan 5 runs, the greasy dirt thrown to the inner wall of the rear side of the first accommodating cavity 11 of the fan housing 1 directly flows into the oil cup 3, and the greasy dirt thrown to the other inner walls of the first accommodating cavity 11 flows down along the inner wall of the first accommodating cavity 11, enters the oil guide groove 44 and flows into the oil cup 3 through the oil guide outlet;

the oil dirt in the centrifugal fan 5 flows to the guide plate 6 through the oil drain hole 511 and then flows into the oil cup 3 through the guide plate 6.

The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.

Claims

1. A range hood comprises

A fan housing (1) having a first receiving chamber (11);

a fume collecting hood (2) arranged below the fan housing (1) and provided with a second accommodating cavity (21) which is in fluid communication with the first accommodating cavity (11) of the fan housing (1);

the oil cup (3) is arranged on the fume collecting hood (2) at a position adjacent to the bottom;

the method is characterized in that:

the fan housing (1) further comprises an oil guide groove (44) which is at least partially positioned on the inner wall of the first accommodating cavity (11) of the fan housing (1), wherein the position of an oil guide outlet of the oil guide groove (44) is higher than the position of the oil cup (3), so that the oil cup (3) directly or indirectly receives oil stains flowing down from the oil guide outlet of the oil guide groove (44).

2. The range hood of claim 1, wherein: the tank body (4) of the oil guide tank (44) gradually inclines downwards from front to back, and the oil guide outlet of the oil guide tank (44) is positioned above the oil cup (3) so that the oil cup (3) directly receives oil stains flowing down from the oil guide outlet of the oil guide tank (44).

3. The range hood of claim 1, wherein: the inclination angle of the tank bottom of the tank body (4) of the oil guide tank (44) relative to the horizontal plane is alpha, and alpha is more than or equal to 3 degrees and less than or equal to 7 degrees.

4. The range hood of claim 1, wherein: the cross section of the fan housing (1) is rectangular;

the groove body (4) of the oil guide groove (44) comprises a first section (41) connected with the left inner wall of the first accommodating cavity (11) of the fan housing (1), a second section (42) connected with the right inner wall of the first accommodating cavity (11) of the fan housing (1), and a third section (43) respectively communicated with the first section (41) and the second section (42), wherein the third section (43) is connected with the front inner wall of the first accommodating cavity (11) of the fan housing (1);

the oil cup (3) is positioned below the inner wall of the rear side of the first accommodating cavity (11) of the fan housing (1).

5. The range hood according to any one of claims 1 to 4, wherein: also comprises a centrifugal fan (5) arranged in the first accommodating cavity (11) of the fan housing (1) and positioned higher than the groove body (4) of the oil guiding groove (44).

6. The range hood of claim 5, wherein: the centrifugal fan comprises a centrifugal fan housing (1), a centrifugal fan (5) and an oil guiding groove (44), and a guide plate (6) arranged in a first accommodating cavity (11) of the fan housing (1) and positioned between the centrifugal fan (5) and the groove body (4) of the oil guiding groove (44), wherein the guide plate (6) is positioned right above the oil cup (3) and is used for guiding oil dropping from the centrifugal fan (5) to the oil cup (3).

7. The range hood of claim 5, wherein: the centrifugal fan (5) comprises a volute (51), wherein an oil drain hole (511) penetrating through the shell wall of the volute (51) is formed in the bottom of the volute (51) and used for draining oil stains in the volute (51), and the oil drain hole (511) is aligned with the guide plate (6) in the up-down direction.