CN220471708U - Table top fume exhaust fan - Google Patents
Table top fume exhaust fan Download PDFInfo
- Publication number
- CN220471708U CN220471708U CN202321928014.0U CN202321928014U CN220471708U CN 220471708 U CN220471708 U CN 220471708U CN 202321928014 U CN202321928014 U CN 202321928014U CN 220471708 U CN220471708 U CN 220471708U
- Authority
- CN
- China
- Prior art keywords
- air
- air duct
- motor
- rear cover
- range hood
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003517 fume Substances 0.000 title description 4
- 239000006096 absorbing agent Substances 0.000 claims abstract description 8
- 239000006233 lamp black Substances 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims description 11
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 235000021168 barbecue Nutrition 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model provides a desktop range hood, includes lampblack absorber main part and base, and lampblack absorber main part upper portion has the wind channel shell, and the front and back end of wind channel shell is equipped with air inlet protecgulum and air-out back lid respectively, installs the wind channel subassembly in the wind channel shell, in the wind channel shell and at wind channel subassembly front side, installs filter screen, its characterized in that: the air duct assembly is formed by assembling a motor support and a motor rear cover together, wrapping the motor inside, arranging a wind wheel on an output shaft of the motor, wrapping the motor support and the motor rear cover by an air duct front cover and an air duct rear cover, fixing an air duct nozzle on the front part of the air duct front cover, and forming an air duct assembly isolated from outside air, wherein the front end and the rear end of the air duct assembly are respectively fixed on an air inlet and an air outlet. Not only can the external air be greatly reduced to carry out turbulent flow such as interference and collision, but also the air flow can be effectively guided in the axial direction, thereby reducing wind resistance, reducing noise and enhancing suction force.
Description
Technical Field
The utility model belongs to the technical field of range hoods, and relates to a desktop range hood.
Background
The fume exhaust fan is also called fume exhaust fan and is one kind of kitchen appliance for purifying kitchen environment. The traditional range hood is usually fixedly arranged above a kitchen stove, can rapidly pump away waste burnt by the stove and oil smoke harmful to human bodies in the cooking process, is discharged outdoors, and simultaneously condenses and collects the oil smoke, reduces pollution and purifies air.
In modern society, people are increasingly performing self-service cooking modes such as barbecue, hot pot and the like. This mode can generate a lot of oil smoke, steam, burnt gas, etc., and can influence people's dining experience. Because the traditional range hood is fixedly installed, the use scene is basically fixed on the kitchen range top, cannot move, and cannot pump away the oil smoke generated by the barbecue of people outside the kitchen. Therefore, the desktop range hood is presented at present to solve the problems of smoke and steam generated during dining.
Through investigation, the chinese patent of present patent number 201910654857.8, "a portable mobile range hood" discloses a portable mobile range hood, and it includes fuselage and fan, the fuselage includes the fan fixing base, the fan is centrifugal fan, and central point department is equipped with the support in the fan fixing base, connects through a plurality of curved drainage flaps between support and the fan fixing base medial surface, and the drainage flaps is evenly arranged with fan fixing base central axis annular, and the fan is fixed on the support, leaves the space between fan and the fan fixing base medial surface, and the drainage flaps extends into in the space to make the wind that the fan blows out by the drainage flaps divide into direct discharge behind the multibeam. The utility model has reasonable design, the stepped and arc-shaped drainage flap separates the wind blown out by the fan into a plurality of bundles to be discharged, the resistance blown out by the air flow of the fan is reduced, the wind blown out by the fan is prevented from being dispersed, the turbulence is formed by mutual interference, and the pneumatic noise is reduced. The air duct has the defects that the air duct is lack of an air nozzle cover for guiding air flow and the front and rear covers of the air duct, and the air resistance is greatly lost in the axial direction despite the drainage flaps, so that improvement exists.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the desktop range hood with a reasonable air duct structure aiming at the current state of the art, which can avoid turbulence such as interference and collision with external air to a great extent, reduce noise and enhance suction.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a desktop range hood, includes lampblack absorber main part and base, the lampblack absorber main part is installed on the base, and lampblack absorber main part upper portion has the wind channel shell, and wind channel shell's front end air intake and rear end air outlet are equipped with air inlet protecgulum and air-out back lid respectively, install the wind channel subassembly in the wind channel shell, in wind channel shell and at wind channel subassembly front side, install filter screen, its characterized in that: the air duct assembly is formed by assembling a motor support and a motor rear cover together, wrapping the motor inside, arranging a wind wheel on an output shaft of the motor, wrapping the motor support and the motor rear cover by an air duct front cover and an air duct rear cover, fixing an air duct nozzle on the front part of the air duct front cover, and forming an air duct assembly isolated from outside air, wherein the front end and the rear end of the air duct assembly are respectively fixed on an air inlet and an air outlet.
Further, the filter screen is clamped between the filter screen support and the air inlet front cover, and the filter screen support and the air inlet front cover are mutually buckled and connected.
Further, the air duct nozzle is in a horn shape, an air inlet grille is arranged in front of the air duct nozzle, and the air duct nozzle, the air inlet grille and the filter screen bracket are jointly fixed in the air duct shell through screws.
Further, the wind wheel is composed of a plurality of arc-shaped blades, the periphery of the wind wheel is of a sleeve structure with gradually increased radius from front to back, a plurality of independent blade air channels are formed, and filtered oil smoke is sucked into the blade air channels.
Further, arc ribs are distributed on the motor support in the circumferential direction, so that a plurality of fan-shaped holes are formed.
Further, the motor rear cover is provided with arc ribs which are in one-to-one correspondence with the arc ribs of the motor bracket in the circumferential direction.
Still further, the wind channel rear cover is fixed and is covered behind the motor, has formed independent air outlet channel behind the motor, and the air of filtration blows out from the air outlet channel of motor rear cover.
Further, the air inlet front cover and the air outlet rear cover are detachably fixed at the front end and the rear end of the air duct shell.
Further, a clamping groove for placing an oil storage box is formed at the lower side of the front end of the air duct shell, and the oil storage box is arranged on the clamping groove in a drawable manner and is positioned below the filter screen; an oil leakage port is arranged downward and convexly at the lower part of the rear side of the air inlet front cover, and oil and gas absorbed on the filter screen are condensed and then drop into the oil storage box through the oil leakage port.
Finally, the wind guiding angle of the wind wheel is kept between 30 and 60 degrees.
Compared with the prior art, the utility model has the advantages that: the front and rear covers of the air duct and the air duct nozzle are designed, so that the turbulence, such as interference and collision, of the external air can be greatly reduced, the air flow can be effectively guided in the axial direction, the wind resistance is reduced, the noise is reduced, the suction force is enhanced, the diameter of the wind wheel can be smaller, the motor is combined, the rotating speed can be higher, and the suction force is larger, so that the air duct is suitable for being used in barbecue or hot pot.
Drawings
FIG. 1 is a perspective view of a structure of an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of an embodiment of the present utility model;
FIGS. 3.1-3.2 are exploded views of embodiments of the present utility model;
FIG. 4 is an exploded perspective view of the air chute assembly;
FIGS. 5-11 are schematic illustrations of airflow in various components of the duct assembly;
FIG. 12 is a schematic view of the flow path of the air flow at each component of the table top range hood;
FIG. 13 is a cross-sectional view of an embodiment of the present utility model;
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 6, a desktop range hood, including a hood main body 100 and a base 200, the hood main body 100 is mounted on the base 200, an up-down swinging mechanism and a left-right swinging mechanism capable of manually adjusting the hood main body 100 at a certain angle up-down and left-right are arranged on a stand column, the hood main body 100 includes an air duct housing 14, a detachable air inlet front cover 1 and an air outlet rear cover 13 are respectively arranged at the front end and the rear end of the air duct housing, an air duct assembly 300 is mounted in the air duct housing 14, a filter screen 2 is mounted in the air duct housing 14 and in front of the air duct assembly 300, and the key point of the utility model is that: the air duct assembly 300 is formed by assembling the motor bracket 9 and the motor rear cover 11 together and wrapping the motor 10 inside, the wind wheel 7 is arranged on the output shaft of the motor 10, the motor bracket 9 and the motor rear cover 11 are wrapped by the air duct front cover 8 and the air duct rear cover 12, the air duct nozzle 6 is fixed at the front part of the air duct front cover 8, the air duct assembly 300 isolated from the outside air is formed, and the front end and the rear end of the air duct assembly 300 are respectively fixed on the air inlet and the air outlet of the air duct housing 14.
The range hood body 100 comprises an air duct shell 14, the air duct shell 14 presents a hollow cylinder structure, an air inlet 14-1 and an air outlet 14-2 are respectively arranged at the front end and the rear end, a filter screen 2 is clamped between a filter screen bracket 3 and an air inlet front cover 1, the filter screen bracket 3 and the air inlet front cover 1 are mutually buckled and connected, an air duct nozzle 6 is in a horn shape, an air inlet grille 4 is arranged in front of the air duct nozzle 6, the air inlet grille 4 and the filter screen bracket 3 are jointly fixed on a fixed part on the inner wall surface of the air duct shell 14 by using screws, the rear end of the air duct nozzle 6 is fixed at the front part of an air duct front cover 8 by using screws, a motor 10 is locked on a motor bracket 9 by using fixing screws, arc ribs 9-1 are uniformly distributed on the motor bracket 9 in the circumferential direction, thereby forming a plurality of fan-shaped holes 9-2, a wind wheel 7 is fixed on an output shaft of the motor 10 by using nuts 5, the wind wheel 7 is composed of a plurality of arc-shaped fan blades 7-1, the periphery is uniformly distributed in the circumferential direction, and is in a sleeve structure with gradually increased radius from front to the rear, the periphery is formed into a plurality of independent fan blades 7-2, the filtered fan blades are sucked into the wind duct 7-air duct 7-to keep the range hood 60 degrees between the wind duct A and 60 degrees. The motor rear cover 11 is locked on the motor bracket 9 by bolts to wrap the motor 10 entirely, the motor rear cover 11 is also provided with arc ribs 11-1 in a circumferential direction and corresponds to the arc ribs 9-1 of the motor bracket one by one, the air duct rear cover 12 is fixed on the motor rear cover 11 by bolts, an independent air outlet duct is formed on the motor rear cover 11, filtered air is blown out from the air outlet duct of the motor rear cover 11, thus the air duct front cover 8 and the air duct rear cover 12 wrap the whole motor rear cover 11 and the motor bracket 9 to form an air duct isolated from the outside air, only an air inlet and an air outlet are reserved, the front end of the whole air duct assembly 300 is fixed on the air inlet 14-1 of the air duct housing 14, and the rear end is fixed on the air outlet 14-2 of the air duct housing 14 by a buckle. Finally, the air inlet front cover 1 and the air outlet rear cover 13 are detachably fixed at the front end and the rear end of the air duct housing 14. Clamping grooves 14-3 for placing an oil storage box 15 are formed on the left side and the right side of the lower side of the front end of the air duct shell 14, the oil storage box 15 is arranged on the clamping grooves 14-3 in a drawing mode and located below the filter screen 2, an oil leakage port 1-1 is formed in a downward protruding mode below the rear side of the air inlet front cover 1, and oil and air absorbed on the filter screen are condensed and then drop into the oil storage box 15 through the oil leakage port 1-1.
The working principle and the working process are as follows: the filter screen 2 is clamped between the filter screen bracket 3 and the air inlet front cover 1, oil smoke is filtered through the filter screen 2 and then passes through the air inlet, the oil smoke is guided by the horn-shaped air duct nozzle 6 and sucked by the wind wheel, the wind wheel 7 is composed of a plurality of arc-shaped fan blades to form a plurality of independent fan blade air ducts, the filtered oil smoke is sucked into the fan blade air ducts and is thrown outwards by strong centrifugal force, a plurality of fan-shaped holes are formed in the motor bracket 9, the oil smoke is thrown into the fan-shaped holes, a plurality of arc-shaped ribs 11-1 grow on the motor rear cover 11 and correspond to the arc-shaped ribs 9-1 of the motor bracket one by one, the air duct rear cover 12 is fixed on the motor rear cover 11, a plurality of independent air outlet ducts are formed on the motor rear cover 11, the filtered air is blown out from the air outlet duct of the motor rear cover 11, and the oil and gas absorbed on the filter screen 2 is dripped into the oil storage box 15 through the oil leakage port 11-1 at the rear side of the air inlet front cover 1 after condensation, and is collected, see fig. 5-12.
The range hood also comprises a battery which can be arranged in the base and can be used by wire or wireless. The range hood main body can be adjusted to swing up and down and left and right at a certain angle according to the needs.
Because of adopting the front and rear covers of the air duct for guiding the air flow and the design of the air duct mouth thereof, the air duct can greatly reduce the turbulence such as interference and collision of the external air, can also effectively guide the air flow in the axial direction, thereby reducing wind resistance, reducing noise and enhancing suction force at the same time, and the diameter of the wind wheel can be made smaller (under the same condition), the rotating speed can be higher in combination with a motor, and the rotating speed range is 6000-15000rpm, and the suction force is larger, thereby being suitable for barbecue or hot pot.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (10)
1. The utility model provides a desktop range hood, includes lampblack absorber main part and base, the lampblack absorber main part is installed on the base, and lampblack absorber main part upper portion has the wind channel shell, and wind channel shell's front end air intake and rear end air outlet are equipped with air inlet protecgulum and air-out back lid respectively, install the wind channel subassembly in the wind channel shell, in wind channel shell and at wind channel subassembly front side, install filter screen, its characterized in that: the air duct assembly is formed by assembling a motor support and a motor rear cover together, wrapping the motor inside, arranging a wind wheel on an output shaft of the motor, wrapping the motor support and the motor rear cover by an air duct front cover and an air duct rear cover, fixing an air duct nozzle on the front part of the air duct front cover, and forming an air duct assembly isolated from outside air, wherein the front end and the rear end of the air duct assembly are respectively fixed on an air inlet and an air outlet.
2. The table top range hood of claim 1, wherein: the filter screen is clamped between the filter screen support and the air inlet front cover, and the filter screen support and the air inlet front cover are mutually buckled and connected.
3. The table top range hood of claim 1, wherein: the air duct nozzle is in a horn shape, an air inlet grille is arranged in front of the air duct nozzle, and the air duct nozzle, the air inlet grille and the filter screen bracket are jointly fixed in the air duct shell through screws.
4. The table top range hood of claim 1, wherein: the wind wheel is composed of a plurality of arc-shaped fan blades, the periphery of the wind wheel is of a sleeve structure with an increased radius from front to back, a plurality of independent fan blade air channels are formed, and filtered oil smoke is sucked into the fan blade air channels.
5. The table top range hood of claim 1, wherein: the motor bracket is provided with arc ribs distributed in the circumferential direction, so that a plurality of fan-shaped holes are formed.
6. The table top range hood of claim 5, wherein: the motor rear cover is provided with arc ribs which are in one-to-one correspondence with the arc ribs of the motor bracket in the circumferential direction.
7. The table top range hood of claim 6, wherein: the air duct rear cover is fixed on the motor rear cover, an independent air outlet duct is formed on the motor rear cover, and filtered air is blown out from the air outlet duct of the motor rear cover.
8. The table top range hood of claim 1, wherein: the air inlet front cover and the air outlet rear cover are detachably fixed at the front end and the rear end of the air duct shell.
9. The table top range hood of claim 1, wherein: the front end lower side of the air duct shell is provided with a clamping groove for placing an oil storage box, and the oil storage box is arranged on the clamping groove in a drawing manner and is positioned below the filter screen; an oil leakage port is arranged downward and convexly at the lower part of the rear side of the air inlet front cover, and oil and gas absorbed on the filter screen are condensed and then drop into the oil storage box through the oil leakage port.
10. The table top range hood of claim 1, wherein: the wind guiding angle of the wind wheel is kept between 30 and 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321928014.0U CN220471708U (en) | 2023-07-21 | 2023-07-21 | Table top fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321928014.0U CN220471708U (en) | 2023-07-21 | 2023-07-21 | Table top fume exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220471708U true CN220471708U (en) | 2024-02-09 |
Family
ID=89779402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321928014.0U Active CN220471708U (en) | 2023-07-21 | 2023-07-21 | Table top fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220471708U (en) |
-
2023
- 2023-07-21 CN CN202321928014.0U patent/CN220471708U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |