CN215909144U - Smoke exhaust ventilator - Google Patents

Abstract

The utility model relates to the field of kitchen equipment, in particular to a range hood. The utility model provides a range hood, which comprises an oil cup, a shell, a dehumidification system and a smoke suction system; the smoking system comprises a smoking port, a smoke outlet and a first fan; the dehumidification system comprises a dehumidification channel, a dehumidification component, a water collecting piece, an air inlet, an air outlet and a second fan; the dehumidification passageway is located the casing, through dehumidification passageway intercommunication between air intake and the air exit, and dehumidification subassembly, water collection spare and second fan are located the dehumidification passageway, and water collection spare and oil cup intercommunication. The dehumidification system can be prevented from dehumidifying by using the smoke suction fan system of the range hood to drive airflow so as to avoid mutual interference of functions of the range hood, and simultaneously, separated water can be guided into the oil cup more sufficiently, so that the oil cup can be cleaned conveniently.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to the field of kitchen equipment, in particular to a range hood.

Background

Cooking in forms such as cooking is carried out more in the kitchen, and the process of cooking involves the evaporation of a large amount of water, therefore the vapor content in the kitchen is higher, and a large amount of electrical apparatus in the kitchen are in the environment of high temperature and high humidity, cause the life of electrical apparatus to reduce, and when electrical apparatus has the electric leakage hidden danger, higher ambient humidity very easily arouses the electrical apparatus short circuit.

Since the separate dehumidifying apparatus needs to additionally occupy the kitchen space, many dehumidifying apparatuses are integrated into an existing appliance in the kitchen, such as a range hood, as one of the functions of the appliance. Just the oil cup of range hood is easy to collect the greasy dirt after long-time use, the greasy dirt solidifies in the oil cup, difficult washing after a period of time, therefore some current range hoods can guide into the oil cup with moisture that separates out after the dehumidification, in order to avoid the greasy dirt to solidify in the oil cup, but these range hoods utilize existing fan system drive air current to get into dehumidification system from the smoking mouth on the collection petticoat pipe in, use at every turn and all start the main blower, and can't start the dehumidification function when range hood moves the function of inhaling oil smoke.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a range hood, which can prevent a dehumidification system from dehumidifying by using a smoke suction fan system of the range hood to drive airflow so as to prevent functions of the range hood from interfering with each other, and can guide separated water into an oil cup so as to facilitate cleaning of the oil cup.

On one hand, the range hood provided by the utility model comprises an oil cup, a shell, a dehumidification system and a smoke suction system;

the smoking system comprises a smoking port, a smoke outlet and a first fan;

the dehumidification system comprises a dehumidification channel, a dehumidification component, a water collecting piece, an air inlet, an air outlet and a second fan;

the dehumidification passageway is located the casing, the air intake with pass through between the air exit the dehumidification passageway intercommunication, the dehumidification subassembly the piece that catchments with the second fan is located in the dehumidification passageway, the piece that catchments with the oil cup intercommunication.

Further, the dehumidification passageway includes the dehumidification chamber, the cavity inner wall in dehumidification chamber encloses to close and forms the part that catchments, the second fan is located the dehumidification chamber with between the air exit.

Furthermore, the dehumidification assembly comprises a condenser and an evaporator, and the condenser is communicated with the evaporator through a refrigerant pipeline.

Further, the casing includes the collection petticoat pipe and is located respectively the curb plate of collection petticoat pipe both sides, the air intake with the air exit is all seted up on the curb plate.

Further, the casing is including being located the upper plate of collection petticoat pipe top, the smoking mouth is seted up on the collection petticoat pipe, the exhaust port sets up on the upper plate.

Furthermore, the range hood also comprises a flow guide assembly, and the water collecting part is communicated with the oil cup through the flow guide assembly.

Furthermore, the flow guide assembly comprises a flow guide pipe, one end of the flow guide pipe is communicated with a water outlet formed in the bottom of the dehumidification cavity, and the other end of the flow guide pipe extends into the oil storage cavity of the oil cup.

Further, the water guide assembly comprises a water level detection piece, and the water level detection piece is electrically connected with the dehumidification assembly and/or the second fan.

Further, the water level detection piece is connected with the flow guide pipe.

Furthermore, the water level detection piece includes the intake antrum, be equipped with pressure sensing module in the intake antrum, the intake antrum is equipped with the water inlet, the intake antrum passes through the water inlet with oil storage chamber intercommunication.

Further, the water level detection spare includes the clamshell, the intake antrum is located in the clamshell, the clamshell has the bulge, the water inlet is seted up on the bulge, the honeycomb duct is close to set up the through-hole structure on the pipe wall in oil storage chamber, the bulge stretches into in the through-hole structure, just the bulge with the honeycomb duct links to each other, the water inlet with the lumen intercommunication of honeycomb duct.

Further, the protrusion is in threaded engagement with the wall of the through hole structure.

Furthermore, a filter screen is arranged at the air inlet and connected with the shell.

Has the advantages that:

smoking system and dehumidification system in this scheme have respective wind channel respectively to and the fan of drive air current, smoking system's first fan, smoking mouth and exhaust port, with dehumidification system's second fan, air intake and air exit mutual noninterference, but so dehumidification system and smoking system independent operation avoid the mutual interference that two sets of systems sharing a fan brought in the current scheme, and a fan need deal with the life-span influence of frequently opening and stopping to the motor that two kinds of functions brought.

The dehumidification system separates out the vapor in the air to lead to in the oil cup, through the mixture with the greasy dirt in the oil cup, avoid the greasy dirt in the oil cup to solidify and adhere to, the washing of the convenient oil cup.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic overall structure diagram of a range hood provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a dehumidifying module according to an embodiment of the present invention;

fig. 3 is another schematic structural diagram of a range hood according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a water level detecting member according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a dehumidification system according to an embodiment of the present invention.

Icon: 1-a smoke collecting hood; 2-side plate; 3-air inlet; 4-a smoking port; 5-oil cup; 6-a flow guide pipe; 7-a dehumidification assembly; 8-a filter screen; 9-an evaporator; 10-a condenser; 11-a second fan; 12-a housing; 13-a water level detection member; 14-a lumen; 15-a water inlet; 16-a projection; 17-a water inlet cavity; 18-a pressure sensing module; 19-an air inlet opening; 20-a housing; 21-a water collecting member; 22-a water outlet; 23-a dehumidification chamber; 24-an opening; 25-air outlet.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 to 5, the range hood provided by the present invention includes an oil cup 5, a housing 20, a dehumidifying system and a smoking system; the smoking system comprises a smoking port 4, a smoke outlet and a first fan; the dehumidification system comprises a dehumidification channel, a dehumidification component 7, a water collecting part 21, an air inlet 3, an air outlet 25 and a second fan 11; the dehumidification channel is positioned in the shell 20, the air inlet 3 is communicated with the air outlet 25 through the dehumidification channel, the dehumidification system, the water collecting piece 21 and the second fan 11 are positioned in the dehumidification channel, and the water collecting piece 21 is communicated with the oil cup 5.

Smoking system and dehumidification system in this scheme have respective wind channel respectively to and the fan of drive air current, thereby make smoking system and dehumidification system independently operation separately, each other noninterference. The first fan drives gas containing oil smoke to enter a corresponding air channel in the shell 20 from the smoke suction port 4 and then is discharged to the outdoor or a ventilation well through the smoke discharge port; the dehumidification subassembly 7 is arranged in precipitating the vapor in the air, discharge the water that precipitates to the oil cup 5 in again to play the greasy dirt in the diluent oil cup 5, avoid the greasy dirt to solidify the effect in the oil cup 5, the second fan 11 is in the dehumidification passageway is inhaled the air from air intake 3 in, through the dehumidification of dehumidification subassembly 7, discharge dry air from air exit 25 again, water collecting member 21 collects and precipitates the water that produces, and it is interior to reach the oil cup 5 side by side.

Because first fan and second fan 11 can independently operate to there is independent opening in their wind channel, smoking system's smoking mouth 4 and exhaust port, and dehumidification system's air intake 3 and air exit 25 mutual noninterference, therefore dehumidification system and smoking system can independently operate, avoid two sets of systems sharing a mutual interference that the fan brought in the current scheme, and a fan need deal with the frequent start-stop that two kinds of functions brought and influence the life-span of motor.

In an alternative embodiment, the dehumidification channel includes a dehumidification chamber 23, a water collecting member 21 is enclosed by a chamber inner wall of the dehumidification chamber 23, and the second fan 11 is disposed between the dehumidification chamber 23 and the air outlet 25.

The function of the dehumidification chamber 23 is to provide a relatively closed dehumidification space for the dehumidification system, thereby separating the dehumidification assembly 7 from the smoking system. The second fan 11 may be an axial flow fan or a small centrifugal fan, and is fixed on the housing 20.

The shell 12 forming the dehumidification cavity 23 in the scheme is arranged in the shell 20, the shell 20 is provided with the air inlet 3 and the air outlet 25 at corresponding positions, the shell 12 is provided with the air inlet opening 19, and the air inlet opening 19 is communicated with the air inlet 3 through a pipeline or the shell 12 is attached to the inner wall of the shell 20, so that the air inlet opening 19 is communicated with the air inlet 3. Outside the second fan 11 was located shell 12, the one end of second fan 11 and the opening 24 intercommunication on the shell 12, the other end and the air exit 25 intercommunication on the casing 20 for the negative pressure that produces through the operation of second fan 11 for outside air gets into dehumidification chamber 23 from the air intake 3 that is located on the casing 20 in, passes through second fan 11 and follows the air exit 25 outside of discharging, accomplishes the dehumidification of air. The water collecting member 21 is formed by enclosing the inner wall of the dehumidifying chamber 23, and when the water vapor in the air becomes liquid water under the action of the dehumidifying system, the water is received and collected at the bottom of the dehumidifying chamber 23.

Or, the dehumidifying chamber 23 is a part of a pipeline structure, the pipeline is located in the housing 20, two ends of the pipeline having openings are respectively attached to the inner wall of the housing 20 provided with the air inlet 3 and the air outlet 25, so that the air inlet 3 and the air outlet 25 are respectively communicated with the pipe cavity 14 of the pipeline structure, the dehumidifying component 7 and the second fan 11 are both arranged in the pipeline structure, when the second fan 11 is operated, the airflow can directionally realize the flow from the air inlet 3 to the air outlet 25, the dehumidifying component 7 is positioned at the air inlet side or the air outlet side of the fan, the position of the dehumidifying component 7 is a dehumidifying cavity 23, the water collecting piece 21 is arranged in the pipeline structure corresponding to the dehumidifying component 7, the water collecting piece 21 is a tray or other container capable of realizing the water collecting function, when the water vapor in the air is condensed into liquid water by the dehumidification assembly 7, the liquid water falls into the water collection member 21 from the opening of the container of the water collection member 21.

In an alternative embodiment, the dehumidification assembly 7 includes a condenser 10 and an evaporator 9, and the condenser 10 and the evaporator 9 are communicated through a refrigerant pipeline.

The dehumidifying component 7 comprises a compressor, an evaporator 9 and a condenser 10, the compressor, the evaporator 9 and the condenser 10 are communicated through a refrigerant pipeline, the evaporator 9 and the condenser 10 are arranged in a dehumidifying cavity 23, and the compressor is arranged in a shell 20 and is positioned outside the dehumidifying cavity 23. The working principle of the dehumidifying component 7 is the same as that of an air conditioner, the compressor drives the condenser 10 to refrigerate, the surface temperature of the evaporator 9 is reduced, the contact area between the evaporator 9 and air is large, therefore, the condensing efficiency is improved, and water vapor in the air is condensed on the surface of the evaporator 9 to form condensed water and flows to the bottom of the dehumidifying cavity 23.

Alternatively, the dehumidifying component 7 includes a dehumidifying agent, such as a calcium chloride desiccant, which can dehumidify the air and separate out moisture, and the dehumidifying agent is placed in the box body, and absorbs the water vapor in the air through the dehumidifying agent, and separates out liquid water, which flows to the bottom of the dehumidifying chamber 23.

In an alternative embodiment, the housing 20 includes a smoke collecting hood 1 and side plates 2 respectively located at both sides of the smoke collecting hood 1, and the air inlet 3 and the air outlet 25 are opened at the side plates 2.

Air intake 3 and air exit 25 are located the both sides of collection petticoat pipe 1 respectively, air intake 3 is seted up on the curb plate 2 of collection petticoat pipe 1 one side promptly, air exit 25 is seted up on the curb plate 2 of collection petticoat pipe 1 opposite side, air intake 3 and air exit 25 set up relatively, the size that is located dehumidification chamber 23 between air intake 3 and the air exit 25 is the biggest to be limited by the casing 20 width dimension between the curb plate 2 of both sides, consequently, dehumidification chamber 23 can set up to great size along casing 20 width direction, thereby increase the surface area of evaporimeter 9, improve dehumidification subassembly 7's condensation efficiency.

Or, the air inlet 3 and the air outlet 25 are positioned on the side plate 2 on one side of the fume collecting hood 1, the air inlet 3 and the air outlet 25 are arranged on the same side, and the occupied space of the dehumidifying device in the shell 20 is small.

The air inlet 3 and the air outlet 25 in the scheme are directly arranged on the side plate 2, when the dehumidification system operates, airflow directly enters the dehumidification cavity 23 from the air inlet 3 on the side plate 2 and does not pass through a pipeline and an opening of any smoking system, so that oil stains are carried in the air to cause the oil stains attached to the condenser 10, the evaporator 9 and the like when the air of the dehumidification system passes through the pipeline or the opening of any smoking system.

In an alternative embodiment, the housing 20 includes an upper plate above the fume collecting hood 1, the smoke suction port 4 is opened on the fume collecting hood 1, and the smoke discharge port is provided on the upper plate.

The air inlet 3 and the air outlet 25 of the dehumidification system are positioned on the side plates 2 at two sides of the fume collecting cover 1, the fume suction port 4 of the fume suction system is arranged on the fume collecting cover 1, and when the dehumidification system and the fume suction system operate simultaneously, two air paths do not interfere with each other. When oil smoke is generated in a kitchen, the smoke suction system operates, the oil smoke in the kitchen firstly contacts with the smoke collecting cover 1 and is driven by negative pressure generated by the first fan, and enters the shell 20 from the smoke suction port 4 on the smoke collecting cover 1, so that the dehumidification system operates simultaneously, the oil smoke is firstly sucked by the smoke suction system, and the dehumidification system can not or less suck the oil smoke, thereby avoiding that the oil smoke enters the dehumidification cavity 23 in a large amount to cause oil stains attached to the condenser 10, the evaporator 9 and the like.

In an alternative embodiment, the range hood further comprises a flow guide assembly, and the water collecting part 21 is communicated with the oil cup 5 through the flow guide assembly.

The water guide assembly is used for communicating the water collecting part 21 with the oil cup 5, water in the water collecting part 21 flows into the oil cup 5 through the water guide assembly, the water collecting part 21 and the oil cup 5 can be arranged according to respective functions through the water guide of the water guide assembly, and the situation that the water collecting part 21 and the oil cup 5 need to be communicated and are limited in position due to the fact that the water collecting part and the oil cup need to be considered is avoided.

Or, the water collecting part 21 and the oil cup 5 in the scheme can be directly communicated, specifically, the water collecting part 21 is arranged right above the oil cup 5, a water outlet 22 is arranged below the water collecting part 21, the water outlet 22 is right opposite to an oil receiving port of the oil cup 5, and when condensed water exists in the water collecting part 21, the water flows out through the water outlet 22 below the water collecting part 21 and falls into the oil cup 5.

In an alternative embodiment, the diversion assembly comprises a diversion pipe 6, one end of the diversion pipe 6 is communicated with a water outlet 22 formed at the bottom of the dehumidification cavity 23, and the other end of the diversion pipe extends into the oil storage cavity of the oil cup 5.

The draft tube 6 is a soft or hard pipeline, the upper end of the draft tube is fixed with a water outlet 22 arranged at the bottom of the dehumidification cavity 23, the lower end of the draft tube extends into the oil cup 5, and a connecting structure does not exist between the oil cup 5 and the draft tube 6, so that the oil cup 5 can be detached from the shell 20 for cleaning. The water collecting part 21 in the scheme is positioned above the oil cup 5, and condensed water automatically flows into the oil cup 5 from the flow guide pipe 6.

Or, water conservancy diversion subassembly still includes the water pump, the water pump can be with the leading-in oil cup 5 of the water in the water collecting part 21 in, it is specific, the water pump sets up between water collecting part 21 and oil cup 5, water collecting part 21 and oil cup 5 communicate with the water pump through honeycomb duct 6 respectively, under the drive of water pump, the relative position between water collecting part 21 and the oil cup 5 does not receive the influence of height, water collecting part 21 can set up the below at oil cup 5, be equipped with honeycomb duct 6 on the water collecting part 21, honeycomb duct 6 communicates with the water pump, the one end of honeycomb duct 6 stretches into the oil storage intracavity of oil cup 5 from the oil receiving mouth of oil cup 5.

In an alternative embodiment, the air guide assembly includes a water level detecting member 13, and the water level detecting member 13 is electrically connected to the dehumidifying assembly 7 and/or the second fan 11.

The water level detecting member 13 functions to detect the level of the liquid in the oil cup 5, thereby preventing the condensate water in the oil cup 5 from overflowing.

The water level detector 13 can directly detect the liquid level in the oil cup 5, and then judge whether the liquid level exceeds the maximum liquid level threshold. The detection means comprises a buoyancy ball and a mechanical or electric control contact arranged at a certain height in the oil cup 5, wherein the buoyancy ball rises along with the liquid level to be in contact with the contact, so that the water level detection part 13 is judged that the water level reaches the highest liquid level threshold value, and the dehumidification assembly 7 and the second fan 11 are controlled to stop running through the controller. Or the detection means comprises a pressure sensor, the height of the liquid level is judged by detecting the pressure of the liquid in the oil cup 5, the operation of the dehumidification assembly 7 and the second fan 11 is controlled by the controller, and at least one part of the water level detection piece 13 is positioned in the oil storage cavity.

Or, the water level detector 13 can detect the water flow in the flow guide pipe 6, compare the water flow passing through the flow guide pipe 6 with the volume of the oil storage cavity of the oil cup 5, and further determine whether the water flow exceeds the maximum liquid level threshold, and control the operation of the dehumidification assembly 7 and the second fan 11 through the controller.

In an alternative embodiment, the water level detection member 13 is connected to the draft tube 6.

The water level detection part 13 can be connected with the flow guide pipe 6 or the oil cup 5, and the water level detection part 13 is clamped with the oil cup 5 or the flow guide pipe 6 or fixed through other detachable connecting structures.

Preferably, the water level detector 13 is connected to the flow guide tube 6, the flow guide tube 6 is connected to the water collecting member 21, and when the oil cup 5 is removed from the housing 20 for cleaning, the water level detector 13 is not removed with the oil cup 5, thereby simplifying the steps of removing and assembling the oil cup 5.

In an alternative embodiment, the water level detecting member 13 includes a water inlet chamber 17, a pressure sensing module 18 is disposed in the water inlet chamber 17, the water inlet chamber 17 is provided with a water inlet 15, and the water inlet chamber 17 is communicated with the oil storage chamber through the water inlet 15.

The water level detection part 13 further comprises electric elements such as a power supply board, a controller and the like, the power supply board and the controller are electrically connected with the pressure sensing module 18, the power supply board is used for supplying power to the pressure sensing module 18 and the controller, the pressure sensing module 18 converts pressure signals into electric signals, the principle of the electric signals is consistent with that of a pressure sensor, and the electric signals are transmitted to the dehumidification assembly 7 and the second fan 11 through the controller so as to realize operation control of the dehumidification assembly 7 and the second fan 11.

The principle of water level detection piece 13 is unanimous with pressure sensor, and when the liquid level in the oil cup 5 rose to in getting into intake antrum 17 from water inlet 15, the liquid in the intake antrum 17 extrudeed pressure sensing module 18 for pressure sensing module 18 produces the pressurized signal of telecommunication, thereby judges that the liquid level reaches the highest water level threshold value this moment.

In an alternative embodiment, the water level detecting member 13 includes a housing, the water inlet cavity 17 is located in the housing, the housing has a protrusion 16 thereon, the water inlet 15 is provided on the protrusion 16, a through hole structure is provided on a wall of the flow guide tube 6 close to the oil storage cavity, the protrusion 16 extends into the through hole structure, and the protrusion 16 is connected to the flow guide tube, and the water inlet 15 is communicated with the tube cavity 14 of the flow guide tube 6.

The water level detection piece 13 is inserted on the pipe wall of the draft tube 6, a through hole structure is formed in the pipe wall of the draft tube 6, the protruding portion 16 of the shell 20 of the water level detection piece 13 is located in the through hole structure, the water inlet 15 is arranged on the protruding portion 16 and extends into the pipe cavity 14 of the draft tube 6 along with the protruding portion 16 from the through hole structure, and therefore the water inlet cavity 17 is communicated with the pipe cavity 14 of the draft tube 6.

The honeycomb duct 6 stretches into the oil storage cavity of the oil cup 5, the tube cavity 14 of the honeycomb duct 6 is communicated with the oil storage cavity, when the liquid level in the oil cup 5 rises to a certain height, liquid enters the tube cavity 14 of the honeycomb duct 6, according to the principle of a communicating device, the liquid level in the oil storage cavity and the tube cavity 14 of the honeycomb duct 6 is consistent, when the liquid level in the tube cavity 14 of the honeycomb duct 6 rises to a certain height, the liquid level reaches the water inlet 15, the liquid level continues to rise, the liquid enters the water inlet cavity 17 from the water inlet 15, the pressure sensing module 18 is extruded, the liquid level is a preset highest water level threshold value, at the moment, the water level detection piece 13 controls the dehumidifying component 7 and the second fan 11 to stop running, and the liquid is prevented from overflowing the oil cup 5.

The convex part 16 and the draft tube 6 can be in clamping fit or fastened connection through bolts; preferably, the projection 16 is in threaded engagement with the wall of the through hole structure.

In an alternative embodiment, a filter screen 8 is provided at the air inlet 3, and the filter screen 8 is connected to the housing 20.

The filter screen 8 sets up between air intake 3 and dehumidification chamber 23, and when the outside air passed through in air intake 3 gets into dehumidification chamber 23, filtered the air through filter screen 8 to avoid in the common greasy dirt gets into dehumidification chamber 23 among the kitchen environment.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (13)

1. A range hood is characterized by comprising an oil cup (5), a shell (20), a dehumidification system and a smoking system;

the smoking system comprises a smoking port (4), a smoke outlet and a first fan;

the dehumidification system comprises a dehumidification channel, a dehumidification assembly (7), a water collecting piece (21), an air inlet (3), an air outlet (25) and a second fan (11);

the dehumidification passageway is located in casing (20), air intake (3) with pass through between air exit (25) the dehumidification passageway intercommunication, dehumidification subassembly (7) water collection spare (21) with second fan (11) are located in the dehumidification passageway, water collection spare (21) with oil cup (5) intercommunication.

2. The range hood according to claim 1, wherein the dehumidifying channel comprises a dehumidifying cavity (23), the inner wall of the dehumidifying cavity (23) encloses to form the water collecting member (21), and the second fan (11) is disposed between the dehumidifying cavity (23) and the air outlet (25).

3. The range hood according to claim 2, further comprising a flow guide assembly, wherein the water collecting member (21) is communicated with the oil cup (5) through the flow guide assembly.

4. The range hood according to claim 3, wherein the flow guide assembly comprises a flow guide pipe (6), one end of the flow guide pipe (6) is communicated with a water outlet (22) formed at the bottom of the dehumidification cavity (23), and the other end of the flow guide pipe extends into the oil storage cavity of the oil cup (5).

5. The range hood according to claim 4, wherein the flow guide assembly comprises a water level detection member (13), and the water level detection member (13) is electrically connected with the dehumidification assembly (7) and/or the second fan (11).

6. The extractor hood according to claim 5, characterized in that the water level detector (13) is connected with the draft tube (6).

7. The range hood according to claim 6, wherein the water level detecting member (13) comprises a water inlet chamber (17), a pressure sensing module (18) is arranged in the water inlet chamber (17), the water inlet chamber (17) is provided with a water inlet (15), and the water inlet chamber (17) is communicated with the oil storage chamber through the water inlet (15).

8. The range hood according to claim 7, wherein the water level detecting member (13) comprises a housing, the water inlet cavity (17) is located in the housing, a protrusion (16) is provided on the housing, the water inlet (15) is provided on the protrusion (16), a through hole structure is provided on the wall of the flow guide pipe (6) close to the oil storage cavity, the protrusion (16) extends into the through hole structure, the protrusion (16) is connected with the flow guide pipe (6), and the water inlet (15) is communicated with the pipe cavity (14) of the flow guide pipe (6).

9. The range hood of claim 8, wherein the protrusion (16) is threadably engaged with the wall of the through hole structure.

10. The range hood according to claim 1, wherein the dehumidification assembly (7) comprises a condenser (10) and an evaporator (9), and the condenser (10) is communicated with the evaporator (9) through a refrigerant pipeline.

11. The range hood according to claim 1, wherein the housing (20) comprises a smoke collecting hood (1) and side plates (2) respectively located at two sides of the smoke collecting hood (1), and the air inlet (3) and the air outlet (25) are both opened on the side plates (2).

12. The extractor hood according to claim 11, characterized in that said casing (20) comprises an upper plate located above said fume collecting hood (1), said fume suction opening (4) being opened on said fume collecting hood (1), said fume discharge opening being provided on said upper plate.

13. The range hood according to any one of claims 1-12, wherein a filter screen (8) is disposed at the air inlet (3), and the filter screen (8) is connected to the housing (20).

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