CN-115727378-B - Fume exhaust fan

Abstract

The invention relates to a range hood, which comprises a fan and a connecting part positioned at the upstream of the fan, wherein the connecting part can be used for adapting different smoking cavities, the different smoking cavities at least comprise a first smoking cavity and a second smoking cavity which is different from the first smoking cavity, the fan is provided with different operation modes which are matched with the different smoking cavities, the different operation modes at least comprise a first operation mode and a second operation mode which is different from the first operation mode, when the connecting part is matched with the first smoking cavity, the fan operates in the first operation mode during operation, and when the connecting part is matched with the second smoking cavity, the fan operates in the second operation mode during operation. The invention solves the technical problems that the oil stain in the smoke suction cavity is difficult to remove and the appearance is old after the smoke suction cavity is used for a long time.

Inventors

• HUANG LIANGZHI
• LUO SHENG
• WU XIAOYU

Assignees

• 艾欧史密斯(中国)热水器有限公司

Dates

Publication Date

20260508

Application Date

20221129

Claims (20)

1. 1. A range hood is characterized in that, The range hood comprises a fan and a connecting part positioned at the upstream of the fan; The connection portion may be adapted to accommodate different smoking cavities including at least a first smoking cavity and a second smoking cavity different from the first smoking cavity; The fan has different operation modes matched with the different smoking cavities, and the different operation modes at least comprise a first operation mode and a second operation mode which is different from the first operation mode; When the connecting part is connected with the first smoke suction cavity in an adapting way, the fan operates in the first operation mode when in operation, When the connecting part is in fit connection with the second smoke suction cavity, the fan operates in the second operation mode when in operation; The range hood further comprises a mode selection part, the mode selection part comprises a triggering part for triggering different operation modes, the triggering part at least comprises a first triggering part and a second triggering part, the first triggering part is used for triggering the first operation mode, and the second triggering part is used for triggering the second operation mode.
2. 2. The range hood of claim 1 wherein the different smoking cavities each have a different resistance upstream of the blower when connected to the connection, the different modes of operation matching the different resistances upstream of the blower.
3. 3. The range hood of claim 1 wherein the different modes of operation comprise modes of operation of the blower under different P-Q curves, the first mode of operation comprises modes of operation of the blower under a first P-Q curve, the second mode of operation comprises modes of operation of the blower under a second P-Q curve, the first P-Q curve being different from the second P-Q curve.
4. 4. The range hood of claim 1 wherein the different smoking cavities further comprise a third smoking cavity different from the first and second smoking cavities; the fan has a third mode of operation that is different from the first mode of operation and the second mode of operation; when the connecting part is connected with the third smoke suction cavity in an adapting way, the fan operates in the third operation mode when in operation.
5. 5. The range hood of claim 4 wherein the different modes of operation comprise modes of operation of the blower under different P-Q curves, the first mode of operation comprises modes of operation of the blower under a first P-Q curve, the second mode of operation comprises modes of operation of the blower under a second P-Q curve, the third mode of operation comprises modes of operation of the blower under a third P-Q curve, and the first P-Q curve, the second P-Q curve, and the third P-Q curve are all different.
6. 6. The range hood of claim 1, wherein the mode selection portion includes a display screen located on the smoking cavity.
7. 7. The range hood of claim 1, wherein the range hood includes a recognition portion for distinguishing between the different smoking cavities.
8. 8. The range hood according to claim 7, wherein the range hood automatically selects an operation mode matching the smoking cavity after acquiring the type of the smoking cavity according to the recognition result of the recognition part.
9. 9. The range hood of claim 7 wherein the identification portion includes a computer board for controlling operation of the blower, the display boards of the different smoking cavities include different identification tags for distinguishing the different smoking cavities, and the computer board distinguishes the different smoking cavities based on the different identification tags when the display boards with the different identification tags are in communication with the computer board.
10. 10. A range hood according to any one of claims 1 to 9 wherein the fan is at least partially located above the ceiling, the smoking chamber comprises a fume collecting hood located below the fan, one end of the connecting portion is in communication with the air inlet of the fan, and the other end of the connecting portion is in communication with a different fume collecting hood.
11. 11. The range hood of claim 10, wherein the fume collection hood is snap-fit connected to the connection.
12. 12. The range hood of claim 10, wherein the fume collection hood includes a mating portion coupled to the connecting portion, the range hood including a filter screen disposed in the mating portion.
13. 13. The range hood of claim 12, wherein the mating portion includes a first end proximate to the connecting portion and a second end distal from the connecting portion, the filter screen being disposed proximate to or at the second end.
14. 14. The range hood of claim 10, wherein the range hood comprises a filter screen disposed at the connection portion.
15. 15. A range hood according to claim 14, wherein the connection portion comprises a third end proximal to the fume collection hood and a fourth end distal to the fume collection hood, the filter screen being disposed proximate to or at the third end.
16. 16. A range hood according to claim 12 or 13 or 14 or 15, wherein the screen is arranged in a horizontal direction.
17. 17. The range hood of claim 10, wherein the range hood includes a computer board for controlling operation of the blower, the fume collection hood includes a display screen, the computer board is in communication with the display screen, and the computer board is disposed on an outer surface of the connection portion.
18. 18. The range hood of claim 10, wherein the connection portion includes a smoke tube and a connector, one end of the smoke tube is in communication with the blower, the other end of the smoke tube is connected to the connector, and the connector is configured to communicate with a different smoke collection hood.
19. 19. The range hood of claim 10, wherein different fume collecting hoods each comprise different fume collecting chambers and the same mating portion connected to the connecting portion at an upper portion of the fume collecting chambers.
20. 20. A range hood according to claim 19, wherein the mating portions are provided with mounting portions for mounting the fume collecting hoods to a wall, the mounting portions of mating portions of different fume collecting hoods being located at the same location on the mating portions.

Description

Fume exhaust fan Technical Field The invention relates to the technical field of fume extraction, in particular to a range hood. Background The range hood has become one of the indispensable kitchen appliances in modern families. The main function of the range hood is to absorb and remove the oil smoke during cooking, so that the oil smoke is prevented from accumulating in a kitchen, and a good cooking environment is provided for users. The existing range hood sucks the oil smoke through the air suction port in the oil smoke sucking and removing process, and the oil smoke is discharged outdoors through the exhaust port and the pipeline after passing through the filter screen in the range hood. The existing range hood has the defects that the range hood has the condition of oil stain accumulation in a fume collecting hood in the long-term use process, peculiar smell is easy to generate, bacteria are easy to breed, the oil stain cannot be effectively removed even by adopting the prior art (such as steam washing, resistance wire heating, high-voltage electrostatic separation and the like), the problem that the appearance style of the range hood is old after long-term use is caused, and extremely poor use experience is brought to users. Therefore, the inventor provides a range hood by virtue of experience and practice of related industries for many years so as to overcome the defects of the prior art. Disclosure of Invention The invention aims to provide a range hood, which can be adapted to different smoking cavities, is matched with different operation modes when being matched with different smoking cavities, can solve the problem of oil stain accumulation without cleaning oil stains, brings new appearance experience to users, and can ensure the effect of the range hood. The object of the invention can be achieved by the following scheme: the invention provides a range hood which comprises a main body, The range hood comprises a fan and a connecting part positioned at the upstream of the fan; The connection portion may be adapted to accommodate different smoking cavities including at least a first smoking cavity and a second smoking cavity different from the first smoking cavity; The fan has different operation modes matched with the different smoking cavities, and the different operation modes at least comprise a first operation mode and a second operation mode which is different from the first operation mode; When the connecting part is connected with the first smoke suction cavity in an adapting way, the fan operates in the first operation mode when in operation, When the connecting part is connected with the second smoke suction cavity in an adapting way, the fan operates in the second operation mode when in operation. In a preferred embodiment of the present invention, the resistances upstream of the blower when the different smoking cavities are connected to the connection are different, and the different operation modes are matched with the different resistances upstream of the blower. In a preferred embodiment of the present invention, the different modes of operation include modes of operation of the blower under different P-Q curves, the first mode of operation includes modes of operation of the blower under a first P-Q curve, and the second mode of operation includes modes of operation of the blower under a second P-Q curve, the first P-Q curve being different from the second P-Q curve. In a preferred embodiment of the present invention, the different smoking cavities further comprise a third smoking cavity different from the first and second smoking cavities; the fan has a third mode of operation that is different from the first mode of operation and the second mode of operation; when the connecting part is connected with the third smoke suction cavity in an adapting way, the fan operates in the third operation mode when in operation. In a preferred embodiment of the present invention, the different modes of operation include modes of operation of the fan under different P-Q curves, the first mode of operation includes modes of operation of the fan under a first P-Q curve, the second mode of operation includes modes of operation of the fan under a second P-Q curve, the third mode of operation includes modes of operation of the fan under a third P-Q curve, and the first P-Q curve, the second P-Q curve, and the third P-Q curve are all different. In a preferred embodiment of the present invention, the range hood includes a mode selection portion, the mode selection portion includes a trigger portion for triggering the different operation modes, the trigger portion includes at least a first trigger portion for triggering the first operation mode and a second trigger portion for triggering the second operation mode. In a preferred embodiment of the present invention, the mode selection portion includes a display screen located on the smoking cavity. In a preferred embodiment of the present invention, t