CN113685860B

CN113685860B - Fume exhaust fan

Info

Publication number: CN113685860B
Application number: CN202010418248.5A
Authority: CN
Inventors: 谭柏豪; 王春旭; 蒋济武
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2023-06-20
Anticipated expiration: 2040-05-18
Also published as: CN113685860A

Abstract

The invention provides a range hood, comprising: a housing forming a receiving chamber; the filter screen assembly is arranged in the accommodating cavity; the air inlet is arranged on the shell; the movable panel, one end of the movable panel is rotatably connected with the shell, the other end of the movable panel can be attached to the backboard of the shell, and an installation cavity is formed between the backboard and the movable panel; the cleaning device is arranged in the mounting cavity, and the movable panel can isolate the cleaning device from the air inlet. The cleaning device of the range hood is used for cleaning the filter screen assembly, so that the filter holes of the filter screen assembly are prevented from being blocked by oil drops, the filter screen assembly is not required to be maintained and cleaned regularly by a user, and the filter screen assembly is prevented from being damaged due to the fact that the filter screen assembly is removed for many times; can form the installation cavity between backplate and the activity panel, belt cleaning device sets up in the installation cavity, and belt cleaning device and air intake can be kept apart to the activity panel, avoid polluting belt cleaning device via air intake absorptive oil smoke, guarantee belt cleaning device's reliability.

Description

Fume exhaust fan

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a range hood.

Background

The range hood in the related art is provided with the filter screen at the air inlet, large-particle objects (water vapor and oil drops) in the oil smoke in the cooking process are filtered through physical collision, condensation and other principles, so that the grease in the oil smoke is reduced to enter the range hood, the filter screen can intercept the oil drops which are accumulated in the range hood and drop downwards for a long time, and the internal greasy dirt is prevented from directly dropping in foods on a kitchen table or in a pot. However, because the filter screen can adhere to the filter screen surface after using a period of time, the user needs periodic maintenance, washing filter screen, and the filter screen is in order to design, and the filter screen is in order to model the design, generally adopts the die mould back of certain shape on the morphology, and the filter screen surface is uneven, and current filter screen multipurpose screw installation is fixed in addition, installs and removes the filter screen and need the instrument, and this all can cause the trouble to the user unpick and wash the filter screen.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first aspect of the present invention is to provide a range hood.

In view of this, according to a first aspect of the present invention, there is provided a range hood comprising: a housing forming a receiving chamber; the filter screen assembly is arranged in the accommodating cavity; the air inlet is arranged on the shell; the movable panel, one end of the movable panel is rotatably connected with the shell, the other end of the movable panel can be attached to the backboard of the shell, and an installation cavity is formed between the backboard and the movable panel; the cleaning device is arranged in the mounting cavity, and the movable panel can isolate the cleaning device from the air inlet.

The range hood provided by the invention comprises a shell, a filter screen assembly, an air inlet, a movable panel and a cleaning device, wherein the cleaning device is used for cleaning the filter screen assembly, preventing a filter hole of the filter screen assembly from being blocked by oil drops, ensuring the fume sucking capability of fume sucking, avoiding the need of regularly maintaining and cleaning the filter screen assembly by a user, avoiding the damage to the filter screen assembly caused by the repeated removal of the filter screen assembly, and further prolonging the service life of the filter screen assembly; further, one end of the movable panel is rotatably connected with the shell, the other end of the movable panel can be attached to the backboard of the shell, a mounting cavity can be formed between the backboard and the movable panel, the cleaning device is arranged in the mounting cavity, the movable panel can isolate the cleaning device from the air inlet, the cleaning device is prevented from being polluted by oil smoke sucked through the air inlet, the reliability of the cleaning device is guaranteed, and the service life of the cleaning device is prolonged.

In addition, the range hood provided by the technical scheme of the invention can also have the following additional technical characteristics:

in the above technical scheme, further, the movable panel can move between the first position and the second position, and under the condition that the movable panel is located the first position, the movable panel is attached to the backboard, and under the condition that the movable panel is located the second position, the movable panel seals the air inlet.

In the technical scheme, the movable panel can move between the first position and the second position, specifically, the movable panel is attached to the back plate when the movable panel is positioned at the first position, and the movable panel seals the air inlet when the movable panel is positioned at the second position, and it can be understood that the movable panel is positioned at the first position when the cleaning device is not used, so that the movable panel can isolate the cleaning device from the air inlet, the cleaning device is prevented from being polluted by oil smoke sucked through the air inlet, the reliability of the cleaning device is ensured, and the service life of the cleaning device is prolonged; under the condition that the cleaning device is required to be used, the movable panel moves to the second position and seals the air inlet, on one hand, the movable cover plate does not shield the cleaning device, so that the cleaning device can directly spray cleaning media onto the filter screen assembly to clean the filter screen assembly, on the other hand, the movable cover plate directly seals the air inlet, the cleaning media can be prevented from flowing out from the air inlet, and the cleaning of the outside of the range hood can be kept.

In any of the above solutions, further, the housing includes: the panel, under the condition that the movable panel is located the first position, form the air intake between panel and the movable panel, under the condition that the movable panel is located the second position, movable panel is laminated mutually with the panel.

In the technical scheme, the shell comprises a panel, and an air inlet is formed between the panel and the movable panel under the condition that the movable panel is positioned at a first position, namely, the panel is not adhered to the movable panel, and an air inlet is formed between the panel and the movable panel; under the condition that the movable panel is located at the second position, the movable panel is attached to the panel, so that the air inlet is blocked, cleaning media can be prevented from flowing out of the air inlet, and the external cleaning of the range hood can be kept.

In any of the above technical solutions, further, the range hood further includes: the driving assembly is connected with the movable panel and drives the movable panel to turn over.

In this technical scheme, lampblack absorber still includes drive assembly, and drive assembly is connected and can drive movable panel upset with movable panel, promptly through drive assembly control movable panel motion between first position and second position to realize movable panel's automatic motion, promote the degree of automation of product.

In any of the above solutions, further, the driving assembly includes: a first driving member; the fixing piece is convexly arranged on one side of the movable panel, which faces the backboard; the first end of the driving lever is movably connected with the fixing piece, the second end of the driving lever is connected with the first driving piece, and the first driving piece can drive the driving lever to move.

In the technical scheme, the driving assembly comprises a first driving piece, a fixing piece and a deflector rod, and the first driving piece, the fixing piece and the deflector rod are matched to realize automatic movement of the movable panel; specifically, the mounting protrusion sets up on the one side of activity panel towards the backplate, and the first end of driving lever movably is connected with the mounting, and the second end of driving lever is connected with first driving piece, and first driving piece can drive the driving lever motion, and the driving lever is connected with the mounting, and then also can drive the activity panel motion that links to each other with the mounting.

In any of the above solutions, further, the driving assembly further includes: the sliding groove is arranged on the fixing piece; the sliding column is arranged at the first end of the deflector rod, protrudes out of the side wall of the deflector rod and is positioned in the chute; the first through hole is arranged at the second end of the deflector rod, and the hole wall of the first through hole comprises at least one plane; the output shaft of the first driving piece is inserted into the first through hole, and the output shaft of the first driving piece is matched with the first through hole.

In the technical scheme, a chute is arranged on a fixed part, a sliding column is arranged at the first end of a deflector rod, specifically, the sliding column is arranged on the side wall of the deflector rod in a protruding manner, the sliding column is positioned in the chute, a first through hole is arranged at the second end of the deflector rod, and an output shaft of a first driving part is inserted into the first through hole, so that the deflector rod is driven to rotate through rotation of the output shaft of the first driving part, and further the sliding column slides in the chute along with rotation of the deflector rod, and further a movable panel connected with the fixed part is driven to move, so that automatic movement of the movable panel is realized; further, the hole wall of the first through hole comprises at least one plane, and the output shaft of the first driving piece is matched with the first through hole, so that the output shaft of the first driving piece is inserted into the first through hole and cannot rotate relative to the deflector rod, the output shaft of the first driving piece can directly drive the deflector rod to rotate, and the connecting structure between the output shaft of the first driving piece and the deflector rod is simplified.

Specifically, the first driving piece is the motor that opens and shuts, and drive assembly still includes the second safety cover, and the inside of second safety cover forms the cavity, and first driving piece is installed in the cavity for the second safety cover plays the effect of protecting first driving piece, prevents that cleaning medium from polluting first driving piece, prolongs first driving piece's life.

In any of the above technical solutions, further, the range hood further includes: a fixed hole provided on one of the housing and the movable panel; and a fixed shaft disposed on the other of the housing and the movable panel, the fixed shaft being inserted into the fixed hole to rotate in the fixed hole.

In this technical scheme, be provided with the fixed orifices on one of casing and activity panel, be provided with the fixed axle on the other of casing and activity panel, the fixed axle inserts and establishes in the fixed orifices in order to rotate in the fixed orifices for the activity panel can rotate for the casing. Specifically, the two sides of the movable panel are provided with the frame side plates, the frame side plates are rotationally connected with the movable panel, wherein the fixed holes or the fixed shafts are arranged on the frame side plates, so that the movable panel can rotate around the central lines of the fixed shafts or the fixed holes at the two ends, and the opening or closing action is realized.

In any of the above aspects, further, the cleaning device includes: a water pump device; the spray washing assembly is connected with the water pump device; the second driving piece is connected with the spraying device and can drive the spraying assembly to swing.

In the technical scheme, the cleaning device comprises a water pump device, a spray washing assembly and a second driving piece, wherein the spray washing assembly is connected with the water pump device, the water pump device can extract cleaning media and is connected to the spray washing assembly through a pipeline, so that the spray washing assembly can spray the cleaning media to clean the filter screen assembly, and the second driving piece is connected with the spray washing device and can drive the spray washing assembly to swing, so that the spray washing assembly can swing continuously in the cleaning process, and the surface of the filter screen assembly can be cleaned in a large range; further, after the cleaning is finished, the second driving piece can drive the spraying device to fall back to the initial position.

In any of the above solutions, further, the spray assembly includes: the first end of the swing arm is connected with the second driving piece; the spray head is arranged at the second end of the swing arm and is connected with the water pump device.

In this technical scheme, spray rinsing subassembly includes swing arm and spraying, and the first end and the second driving piece of swing arm are connected, and the second driving piece can drive the swing arm and rotate, and the second end of swing arm is provided with the shower nozzle, and the shower nozzle is used for spraying cleaning medium, and the shower nozzle is connected with water pump device, and water pump device can extract cleaning medium and through pipe connection to the shower nozzle for the shower nozzle can spray cleaning medium in order to wash filter screen subassembly.

In any of the above technical solutions, further, a second through hole is provided at the first end of the swing arm, and a hole wall of the second through hole includes at least one plane; the output shaft of the second driving piece is inserted into the second through hole, and the output shaft of the second driving piece is matched with the second through hole.

In the technical scheme, the first end of the swing arm is provided with the second through hole, and the output shaft of the second driving piece is inserted into the second through hole, so that the swing arm is driven to rotate through the rotation of the output shaft of the second driving piece, and then the spray head at the second end of the swing arm is driven to move along with the swing arm, so that the spray washing assembly continuously swings in the cleaning process, and the surface of the filter screen assembly can be cleaned in a large range; further, the output shaft of the second driving piece is inserted into the second through hole and then cannot rotate relative to the swing arm, so that the output shaft of the second driving piece can directly drive the swing arm to rotate, and the connection structure between the output shaft of the second driving piece and the swing arm is simplified.

Specifically, the second driving member is a rotary electric machine.

In any of the above embodiments, further, the cleaning device further includes: and the heating device is connected with the water pump device.

In this technical scheme, belt cleaning device still includes heating device, and heating device is connected with the water pump, can heat the cleaning medium for the cleaning medium forms one of liquid, gaseous, liquid and gaseous mixture, strengthens the cleaning effect.

In any of the above embodiments, further, the cleaning device further includes: the first protective cover, the inside of the first protective cover forms the cavity, the second driving piece is installed in cavity.

In this technical scheme, belt cleaning device still includes first guard shield, and the inside of first guard shield forms the cavity, and the second driving piece is installed in the cavity for first guard shield plays the effect of protection second driving piece, prevents that cleaning medium from polluting the second driving piece, extension second driving piece's life.

In any of the above embodiments, further, the cleaning device is mounted on a side of the movable panel facing the back plate.

In this technical scheme, belt cleaning device installs on movable panel to can follow movable panel joint movement, specifically, belt cleaning device installs on movable panel one side towards the backplate, make movable panel can shelter from belt cleaning device, avoid polluting belt cleaning device via air intake absorptive oil smoke, guarantee belt cleaning device's reliability.

In any of the above embodiments, further, the number of the cleaning devices is plural, and the plural cleaning devices are disposed at intervals.

In this technical scheme, belt cleaning device's quantity is a plurality of, and a plurality of belt cleaning device interval sets up, and a plurality of belt cleaning device can promote cleaning efficiency, enlarge the cleaning range.

In any of the above aspects, further, the screen assembly is rotatably disposed in the receiving chamber.

In the technical scheme, the filter screen component is rotatably arranged in the accommodating cavity, and the rotation of the filter screen component can continuously collide with the oil smoke, so that the oil smoke filtering efficiency is improved; further, as the cleaning medium sprayed by the spray washing component has a certain scouring force, when the cleaning medium is sprayed onto the filter screen component, the filter screen component is automatically rotated by the scouring force, so that the periphery of the surface of the filter screen component is cleaned.

In any of the above technical solutions, further, the range hood further includes: the fan assembly is arranged in the accommodating cavity, and the air suction inlet of the fan assembly faces the filter screen assembly; the filter screen component is positioned between the air inlet and the fan component, so that the fan component can drive the filter screen component to rotate when rotating.

In this technical scheme, lampblack absorber still includes fan subassembly, and fan subassembly's inlet scoop is towards filter screen subassembly, and wherein, filter screen subassembly is located between air intake and the fan subassembly to can drive filter screen subassembly and rotate when making fan subassembly rotate, after fan subassembly opens, drive filter screen subassembly rotation, and then promote oil smoke filtration efficiency.

In any of the foregoing solutions, further, the filter screen assembly includes: the filter screen body is constructed into a hollow columnar structure; the rotating shaft is arranged on the axis of the filter screen body or an extension line of the axis, and the filter screen component can rotate around the center of the rotating shaft; the end cover is arranged at the end part of the filter screen body and is provided with a third through hole; the support frame, at least part of support frame is located the inside of filter screen body, and the both ends of support frame pass the third through-hole and are connected with the pivot.

In this technical scheme, the filter screen subassembly includes filter screen body, the pivot, end cover and support frame, the filter screen body is constructed to hollow columnar structure, the pivot sets up on the axis of filter screen body, or the pivot sets up on the extension line of the axis of filter screen body, the center rotation of filter screen subassembly around the pivot, realize rotating certainly, the end cover sets up the tip at the filter screen body, play the effect of supporting, protection filter screen body, be equipped with the third through-hole on the end cover, at least part of support frame is located the inside of filter screen body, play the effect at the inside support filter screen body of filter screen body, the both ends of support frame pass the third through-hole and are connected with the pivot. Specifically, the both ends of support frame are provided with the installation department that is the cross, are equipped with the mounting groove with installation department looks adaptation in the pivot, and the both ends of support frame pass the third through-hole and insert establish in the mounting groove, realize the connection of support piece and pivot.

In any of the above technical solutions, further, the number of the filter screen bodies is plural, and the plural filter screen bodies are connected along the length direction; the screen assembly further includes: the connecting plate is arranged between the two adjacent filter screen bodies to connect the two adjacent filter screen bodies.

In this technical scheme, the quantity of filter screen body can be a plurality of, a plurality of filter screen bodies are connected along length direction, the connecting plate sets up between two adjacent filter screen bodies to connect two adjacent filter screen bodies through the connecting plate, make two adjacent filter screen body connections become an organic wholely, on the one hand, enlarged the filtration area of filter screen body, on the other hand, also avoid the length overlength of a filter screen body and lead to the structure intensity of filter screen body too little, lead to the filter screen body to warp easily, the intermediate position of filter screen body collapses scheduling problem easily, influence the life of filter screen body.

In any of the above technical solutions, further, the range hood further includes: the bracket is arranged on the backboard of the shell; the bearing is arranged on the bracket and is matched with the rotating shaft of the filter screen component.

In this technical scheme, lampblack absorber still includes support and bearing, and the support sets up on the backplate of casing, and the bearing sets up on the support, and the bearing is suitable with the pivot looks of filter screen subassembly, and the bearing can reduce the frictional force that receives when the filter screen subassembly rotates for the rotation of filter screen subassembly is more smooth and easy. Specifically, the support stretches out forward by the backplate of casing, and the bearing sets up on the support, and the pivot at filter screen subassembly both ends is inserted respectively in establishing the bearing, and the rotation of filter screen subassembly is realized in the cooperation of bearing and pivot.

It is understood that the number of the filter screen assemblies can be one or more, each filter screen assembly has two rotating shafts, and under the condition that the number of the filter screen assemblies is more than one, a plurality of groups of brackets and bearings are matched with the rotating shafts of the filter screen assemblies, so that smooth rotation of the filter screen assemblies is realized.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 shows a schematic structural view of a range hood according to an embodiment of the present invention;

FIG. 2 shows a schematic cross-sectional view of FIG. 1 at A-A;

fig. 3 is a schematic structural view of a movable panel of a range hood in a first position according to an embodiment of the present invention;

FIG. 4 shows a schematic cross-sectional view of FIG. 3;

fig. 5 is a schematic structural view of the back surface of the movable panel of the range hood when the movable panel is in the first position according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a movable panel of a range hood in a second position according to an embodiment of the present invention;

FIG. 7 shows a schematic cross-sectional view of FIG. 6;

fig. 8 is a schematic structural view of the back surface of the movable panel of the range hood when the movable panel is in the second position according to an embodiment of the present invention;

fig. 9 shows an exploded view of a range hood provided according to an embodiment of the present invention;

fig. 10 is a schematic view showing a part of the structure of a range hood according to an embodiment of the present invention;

fig. 11 is a schematic view showing another partial structure of a range hood according to an embodiment of the present invention;

fig. 12 is a schematic view of a part of a structure of a movable panel of a range hood in a first position according to an embodiment of the present invention;

FIG. 13 shows an enlarged partial schematic view of FIG. 12 at B;

fig. 14 is a schematic view of a part of a structure of a movable panel of a range hood in a second position according to an embodiment of the present invention;

FIG. 15 shows an enlarged partial schematic view of FIG. 14 at C;

fig. 16 is a schematic view showing a further partial structure of a range hood according to an embodiment of the present invention;

fig. 17 is a schematic view showing still another part of the structure of a range hood according to an embodiment of the present invention;

Fig. 18 shows another structural schematic diagram of a range hood according to an embodiment of the present invention.

Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 18 is:

100 lampblack absorber, 110 casing, 112 backplate, 114 panel, 116 curb plate, 117 frame curb plate, 118 fixed orifices, 119 installation cavity, 120 filter screen subassembly, 121 filter screen body, 123 end cover, 125 connecting plate, 130 air intake, 140 movable fixing shaft, 142 fixed axle, 150 belt cleaning device, 151 water pump device, 152 second driving piece, 153 swing arm, 155 shower nozzle, 156 first protective cover, 160 driving component, 161 first driving piece, 162 mounting, 163 spout, 164 driving lever, 165 sliding column, 166 first through hole, 167 second protective cover, 170 fan subassembly, 180 support.

Detailed Description

So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized below, may be had by reference to the appended drawings. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

A range hood 100 according to some embodiments of the present invention is described below with reference to fig. 1 to 18.

Example 1

As shown in fig. 1 to 8, according to a first aspect of the present invention, there is provided a range hood 100, the range hood 100 including a housing 110, a screen assembly 120, an air inlet 130, a movable panel 140, and a cleaning device 150, the housing 110 including a back plate 112, a mounting cavity 119 being formed between the back plate 112 and the movable panel 140, the cleaning device 150 being disposed in the mounting cavity 119, the movable panel 140 being capable of isolating the cleaning device 150 from the air inlet 130.

The range hood 100 provided by the invention comprises a shell 110, a filter screen assembly 120, an air inlet 130, a movable panel 140 and a cleaning device 150, wherein the shell 110 comprises a back plate 112, a panel 114 and a side plate 116, the back plate 112, the panel 114 and the side plate 116 form a containing cavity, the cleaning device 150 is used for cleaning the filter screen assembly 120, so that the filter holes of the filter screen assembly 120 are prevented from being blocked by oil drops, the fume absorbing capacity of fume exhaust is ensured, the filter screen assembly 120 is not required to be maintained and cleaned regularly by a user, the filter screen assembly 120 is prevented from being damaged due to the fact that the filter screen assembly 120 is removed for many times, and the service life of the filter screen assembly 120 is prolonged; further, one end of the movable panel 140 is rotatably connected with the housing 110, and the other end of the movable panel 140 can be attached to the back plate 112 of the housing 110, so that an installation cavity 119 can be formed between the back plate 112 and the movable panel 140, the cleaning device 150 is arranged in the installation cavity 119, the movable panel 140 can isolate the cleaning device 150 from the air inlet 130, so that the cleaning device 150 is prevented from being polluted by oil smoke sucked through the air inlet 130, the reliability of the cleaning device 150 is ensured, and the service life of the cleaning device 150 is prolonged.

Further, as shown in fig. 3 to 8, the movable panel 140 can move between a first position and a second position, specifically, as shown in fig. 3, 4 and 5, in the case that the movable panel 140 is located at the first position, the movable panel 140 is attached to the back plate 112, as shown in fig. 6, 7 and 8, in the case that the movable panel 140 is located at the second position, the movable panel 140 seals the air inlet 130, and it is understood that in the case that the cleaning device 150 is not used, the movable panel 140 is located at the first position, so that the movable panel 140 can isolate the cleaning device 150 from the air inlet 130, so that the soot sucked through the air inlet 130 is prevented from polluting the cleaning device 150, the reliability of the cleaning device 150 is ensured, and the service life of the cleaning device 150 is prolonged; under the condition that the cleaning device 150 needs to be used, the movable panel 140 moves to the second position and seals the air inlet 130, so that on one hand, the movable cover plate does not shield the cleaning device 150, and therefore the cleaning device 150 can directly spray cleaning medium onto the filter screen assembly 120 to clean the filter screen assembly 120, and on the other hand, the movable cover plate directly seals the air inlet 130, and the cleaning medium can be prevented from flowing out of the air inlet 130, so that the external cleaning of the range hood 100 can be kept.

Further, as shown in fig. 1, 2, 3, 4, 6, 7 and 9, the housing 110 includes a panel 114, and the air inlet 130 is formed between the panel 114 and the movable panel 140 when the movable panel 140 is located at the first position, that is, the air inlet 130 is formed between the panel 114 and the movable panel 140 without adhesion between the panel 114 and the movable panel 140, and the air inlet 130 is formed between the panel 114 and the movable panel 140; under the condition that the movable panel 140 is located at the second position, the movable panel 140 is attached to the panel 114, so that the air inlet 130 is blocked, the cleaning medium can be prevented from flowing out of the air inlet 130, and the external cleaning of the range hood 100 can be kept.

Example two

Further, as shown in fig. 5, 8, 10, 11, 12, 13, 14 and 15, the range hood 100 further includes a driving component 160, where the driving component 160 is connected to the movable panel 140 and can drive the movable panel 140 to turn over, that is, the driving component 160 controls the movable panel 140 to move between the first position and the second position, so as to realize automatic movement of the movable panel 140 and improve the automation degree of the product.

Further, as shown in fig. 5, 8, 10, 11, 12, 13, 14 and 15, the driving assembly 160 includes a first driving member 161, a fixing member 162 and a shift lever 164, and the cooperation of the first driving member 161, the fixing member 162 and the shift lever 164 can implement the automatic movement of the movable panel 140; specifically, the fixing member 162 is disposed on a side of the movable panel 140 facing the back plate 112 in a protruding manner, a first end of the lever 164 is movably connected to the fixing member 162, a second end of the lever 164 is connected to the first driving member 161, and the first driving member 161 can drive the lever 164 to move, and the lever 164 is connected to the fixing member 162, so as to drive the movable panel 140 connected to the fixing member 162 to move.

Further, as shown in fig. 5, 8, 10, 11, 12, 13, 14 and 15, a chute 163 is provided on the fixing member 162, a first end of the lever 164 is provided with a sliding post 165, specifically, the sliding post 165 is convexly provided on a side wall of the lever 164, the sliding post 165 is located in the chute 163, a second end of the lever 164 is provided with a first through hole 166, and an output shaft of the first driving member 161 is inserted into the first through hole 166, so that the lever 164 is driven to rotate by rotation of the output shaft of the first driving member 161, and then the sliding post 165 slides in the chute 163 along with rotation of the lever 164, and further drives the movable panel 140 connected with the fixing member 162 to move, thereby realizing automatic movement of the movable panel 140; further, the hole wall of the first through hole 166 includes at least one plane, and the output shaft of the first driving member 161 is adapted to the first through hole 166, so that the output shaft of the first driving member 161 is inserted into the first through hole 166 and does not rotate relative to the driving lever 164, so that the output shaft of the first driving member 161 can directly drive the driving lever 164 to rotate, and the connection structure between the output shaft of the first driving member 161 and the driving lever 164 is simplified.

Specifically, as shown in fig. 16 and 17, the first driving member 161 is an open-close motor; the driving assembly 160 further includes a second protection cover 167, a cavity is formed in the second protection cover 167, and the first driving member 161 is installed in the cavity, so that the second protection cover 167 plays a role of protecting the first driving member 161, preventing the cleaning medium from polluting the first driving member 161, and prolonging the service life of the first driving member 161.

Further, as shown in fig. 11, a fixing hole 118 is provided at one of the housing 110 and the movable panel 140, and a fixing shaft 142 is provided at the other of the housing 110 and the movable panel 140, the fixing shaft 142 being inserted into the fixing hole 118 to rotate in the fixing hole 118, so that the movable panel 140 can rotate with respect to the housing 110. Specifically, frame side plates 117 are disposed on two sides of the movable panel 140, and the frame side plates 117 are rotatably connected with the movable panel 140, wherein a fixing hole 118 or a fixing shaft 142 is disposed on the frame side plates 117, so that the movable panel 140 can rotate around the fixing shafts 142 at two ends or the center line of the fixing hole 118, and an opening or closing action is achieved.

Example III

Further, as shown in fig. 9, 10, 16 and 17, the cleaning device 150 includes a water pump device 151, a spray assembly connected to the water pump device 151, the water pump device 151 capable of pumping a cleaning medium and connected to the spray assembly through a pipe so that the spray assembly can spray the cleaning medium to clean the screen assembly 120, and a second driving member 152 connected to the spray assembly and capable of driving the spray assembly to swing so that the spray assembly continuously swings during the cleaning process, thereby cleaning the surface of the screen assembly 120 in a wide range; further, after the cleaning is finished, the second driving member 152 can drive the spraying device to fall back to the initial position.

Further, as shown in fig. 9, 10, 16 and 17, the spray assembly includes a swing arm 153 and spray coating, a first end of the swing arm 153 is connected with a second driving member 152, the second driving member 152 can drive the swing arm 153 to rotate, a second end of the swing arm 153 is provided with a spray head 155, the spray head 155 is used for spraying cleaning media, the spray head 155 is connected with a water pump device 151, the water pump device 151 can draw the cleaning media and be connected to the spray head 155 through a pipe, so that the spray head 155 can spray the cleaning media to clean the filter screen assembly 120.

Further, as shown in fig. 9, 10, 16 and 17, the first end of the swing arm 153 is provided with a second through hole, and the output shaft of the second driving member 152 is inserted into the second through hole, so that the swing arm 153 is driven to rotate by the rotation of the output shaft of the second driving member 152, and then the spray head 155 at the second end of the swing arm 153 is driven to move along with the swing arm 153, so that the spray assembly continuously swings in the cleaning process, and the surface of the filter screen assembly 120 can be cleaned in a large range; further, the output shaft of the second driving member 152 is inserted into the second through hole and does not rotate relative to the swing arm 153, so that the output shaft of the second driving member 152 can directly drive the swing arm 153 to rotate, and the connection structure between the output shaft of the second driving member 152 and the swing arm 153 is simplified.

Specifically, the second driving member 152 is a rotary electric machine.

Further, the cleaning device 150 further includes a heating device connected to the water pump, which can heat the cleaning medium, so that the cleaning medium forms one of liquid, gas, and a mixture of liquid and gas, to enhance the cleaning effect.

Further, as shown in fig. 9, 10, 16 and 17, the cleaning device 150 further includes a first protection cover 156, a cavity is formed inside the first protection cover 156, and the second driving member 152 is installed in the cavity, so that the first protection cover 156 plays a role of protecting the second driving member 152, preventing the cleaning medium from contaminating the second driving member 152, and prolonging the service life of the second driving member 152.

Further, as shown in fig. 5, 8 and 10, the cleaning device 150 is mounted on the movable panel 140 so as to be capable of moving together with the movable panel 140, in particular, the cleaning device 150 is mounted on a side of the movable panel 140 facing the back plate 112, so that the movable panel 140 can shield the cleaning device 150, prevent the cooking fumes sucked through the air inlet 130 from contaminating the cleaning device 150, and ensure the reliability of the cleaning device 150.

Further, as shown in fig. 5, 8, 10, 16 and 17, the number of the cleaning devices 150 is plural, the plurality of cleaning devices 150 are provided at intervals, and the plurality of cleaning devices 150 can improve the cleaning efficiency and expand the cleaning range.

Example IV

In any of the above embodiments, further, as shown in fig. 2, 4, 7, 9 and 18, the filter screen assembly 120 is rotatably disposed in the accommodating cavity, and the rotation of the filter screen assembly 120 can continuously collide with the oil smoke, so as to improve the filtering efficiency of the oil smoke; further, since the cleaning medium sprayed by the spraying component has a certain scouring force, when the cleaning medium is sprayed onto the filter screen component 120, the filter screen component 120 is automatically rotated by the scouring force, so that the periphery of the surface of the filter screen component 120 is cleaned.

Further, as shown in fig. 2, 4, 7, 9 and 18, the range hood 100 further includes a fan assembly 170, and an air suction inlet of the fan assembly 170 faces the filter screen assembly 120, where the filter screen assembly 120 is located between the air inlet 130 and the fan assembly 170, so that the fan assembly 170 can drive the filter screen assembly 120 to rotate when rotating, and after the fan assembly 170 is opened, the filter screen assembly 120 is driven to rotate, thereby improving the filtering efficiency of the oil smoke.

Further, as shown in fig. 18, the filter screen assembly 120 includes a filter screen body 121, a rotating shaft, an end cover 123 and a supporting frame, the filter screen body 121 is configured into a hollow column structure, the rotating shaft is arranged on the axis of the filter screen body 121, or the rotating shaft is arranged on the extension line of the axis of the filter screen body 121, the filter screen assembly 120 can rotate around the center of the rotating shaft, self-rotation is realized, the end cover 123 is arranged at the end part of the filter screen body 121 to play a role in supporting and protecting the filter screen body 121, a third through hole is arranged on the end cover 123, at least part of the supporting frame is positioned in the filter screen body 121 to play a role in supporting the filter screen body 121 in the interior of the filter screen body 121, and two ends of the supporting frame penetrate through the third through hole to be connected with the rotating shaft. Specifically, the both ends of support frame are provided with the installation department that is the cross, are equipped with the mounting groove with installation department looks adaptation in the pivot, and the both ends of support frame pass the third through-hole and insert establish in the mounting groove, realize the connection of support piece and pivot.

Further, as shown in fig. 18, the number of the filter screen bodies 121 may be plural, and the plural filter screen bodies 121 are connected along the length direction, and the connection plate 125 is disposed between two adjacent filter screen bodies 121, so that two adjacent filter screen bodies 121 are connected together through the connection plate 125, thereby enlarging the filtering area of the filter screen body 121 on the one hand, and avoiding the problem that the filter screen body 121 is easy to deform and the middle position of the filter screen body 121 is easy to collapse due to too long length of one filter screen body 121, which affects the service life of the filter screen body 121 on the other hand.

Further, as shown in fig. 18, the range hood 100 further includes a support 180 and a bearing, the support 180 is disposed on the back plate 112 of the housing 110, the bearing is disposed on the support 180, the bearing is adapted to the rotation axis of the filter screen assembly 120, and the bearing can reduce the friction force applied when the filter screen assembly 120 rotates, so that the rotation of the filter screen assembly 120 is smoother. Specifically, the support 180 extends forward from the back plate 112 of the housing 110, the bearings are disposed on the support 180, the rotating shafts at two ends of the filter screen assembly 120 are respectively inserted into the bearings, and the rotation of the filter screen assembly 120 is realized by the cooperation of the bearings and the rotating shafts.

It will be appreciated that the number of screen assemblies 120 may be one or more, each screen assembly 120 has two rotation axes, and in the case that the number of screen assemblies 120 is plural, there are multiple sets of supports 180 and bearings cooperating with the rotation axes of the screen assemblies 120 to achieve smooth rotation of the plurality of screen assemblies 120.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The invention optimizes the range hood 100, and a freely rotatable filter screen assembly 120 is arranged on the upper side of an air inlet 130, namely in the shell 110, and the filter screen assembly 120 is driven to automatically rotate after a fan assembly 170 of the range hood 100 is started, so that the filtering efficiency of the oil smoke is improved. After the filter screen assembly 120 is used for a period of time, oil stains are attached to the surface of the filter screen assembly 120, and the filter screen assembly 120 is cleaned through the automatic cleaning function of the cleaning device 150 in the range hood 100, so that a user does not need to regularly maintain and clean the filter screen assembly 120, and the service life of the filter screen assembly 120 is prolonged.

Specifically, as shown in fig. 1, 2, and 18, the range hood 100 includes: fan assembly 170, intake 130, panel 114, screen assembly 120, back panel 112, removable panel 140.

As shown in fig. 1 and fig. 2, compared with the range hood 100 in the related art, the rear side of the lower frame extends downward, so that the air inlet 130 is close to the cooking bench, the negative pressure area is close to the source of the oil smoke, and the smoking effect is enhanced. And the filter screen assembly 120 capable of freely rotating is arranged below the fan assembly 170 and above the air inlet 130, as shown in fig. 2, the arrow direction in fig. 2 shows the flow direction of the lampblack airflow, when the range hood 100 is opened, the airflow flows through the air inlet 130 and drives the filter screen assembly 120 to rotate, the filter screen assembly 120 continuously collides with lampblack, and the probability of pollution of a fan system by lampblack is reduced.

Further, the filter screen assembly 120 is exposed to the oil smoke environment for a long time, and oil stains adhere to the surface of the filter screen assembly 120, so that the weight of the filter screen assembly 120 becomes large, the rotation speed of the filter screen assembly 120 is reduced after the weight of the filter screen assembly 120 is increased, and even the performance of the range hood 100 is affected, so that the filter screen assembly 120 needs to be maintained and cleaned regularly. In order to reduce maintenance and cleaning costs for users and avoid complicated disassembly and assembly steps for disassembling and assembling the filter screen assembly 120, the invention realizes automatic cleaning of the filter screen assembly 120, namely, after a certain time of use, the range hood 100 automatically starts a cleaning function to clean the filter screen assembly 120 without the need of manual operation of users.

As shown in fig. 5, 8 and 10, in the present invention, the cleaning device 150 is disposed between the movable panel 140 and the back plate 112, when the range hood 100 is in a normal operation state, the movable panel 140 is closely attached to the back plate 112, and the cleaning device 150 is blocked from the air flow channel between the air inlet 130 and the fan assembly 170, so that the cleaning device 150 is prevented from being directly polluted by the oil smoke. When the cleaning function is activated, the movable panel 140 is flipped forward to the edge of panel 114, closing the air inlet 130. At this time, the cleaning device 150 cleans the filter screen assembly 120 through the spray head 155 on the swing arm 153. In the cleaning process, the cleaning solution and the sewage cannot splash out from the air inlet 130 because the air inlet 130 is closed. After the cleaning is completed, the swing arm 153 falls back to the original position, the movable panel 140 turns back to re-open the air inlet 130, and the cleaning device 150 is blocked from the air flow channel, so as to prevent the cleaning device 150 from being polluted by the oil smoke.

Further, as shown in fig. 11, 12, 13, 14 and 15, a fixing member 162 having a sliding slot 163 is disposed on the back of the movable panel 140, the bottoms of the two ends of the movable panel 140 are provided with fixing shafts 142 and are connected with the fixing holes 118 on the bottom of the rack side plates 117 on both sides, the sliding slot 163 is connected with a sliding column 165 on the end of a driving lever 164 in a matching manner, a first driving member 161 (an opening/closing motor) is disposed between the movable panel 140 and the back plate 112, the driving lever 164 is fixed on the output shaft of the first driving member 161 through a first through hole 166, and the first driving member 161 drives the driving lever 164 to drive the movable panel 140, so that the movable panel 140 rotates around the axes of the fixing shafts 142 on the two ends of the bottom to realize the opening or closing operation. Specifically, the second protection cover 167 is provided on the outside of the first driving member 161, and the second protection cover 167 plays a role in protecting the first driving member 161 from direct contamination by sewage.

When the movable panel 140 is opened, the water pump device 151 pumps the cleaning medium (water, cleaning solution, etc.) and is connected to the spray head 155 at the top of the swing arm 153 through a pipe, and the water pump device 151 may include a heating module, so that the cleaning medium is in a state of liquid, steam, a mixture of steam and liquid, etc. to spray the filter screen assembly 120.

Further, as shown in fig. 16 and 17, a second driving member 152 (a rotating motor) is disposed at the rear side of the first protection cover 156, the swing arm 153 is fixed on the rotating shaft of the rotating motor, the swing arm 153 swings and sprays the cleaning medium onto the screen assembly 120 through the driving of the rotating motor, the first protection cover 156 plays a role in protecting the rotating motor from being directly polluted by sewage, the water pump device 151 continuously draws the cleaning medium and conveys the cleaning medium to the spray head 155, the spray head 155 sprays the cleaning medium to clean the screen assembly 120, the swing arm 153 continuously swings during the cleaning process, so that the spray head 155 can clean the surface of the screen assembly 120 in the largest range, and the screen assembly 120 automatically rotates due to a certain scouring force when the cleaning medium is sprayed onto the screen assembly 120, namely, the periphery of the surface of the screen assembly 120 is cleaned.

Further, after the cleaning is completed, the swing arm 153 is driven by the rotating motor to fall back to the initial position, the front panel 114 turns backward to open the lower air inlet 130 again, and the cleaning device 150 is hidden between the lower panel 114 and the rack back plate 112.

In the invention, the cleaning device 150 automatically cleans the filter screen assembly 120, so that manual operation is reduced, and the cleaning device 150 is arranged between the movable panel 140 and the backboard 112 to prevent the pollution caused by oil smoke.

In the description of the present invention, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A range hood, comprising:

a housing forming a receiving cavity;

a screen assembly disposed in the receiving cavity;

the air inlet is arranged on the shell;

the movable panel, one end of the movable panel is rotatably connected with the shell, the other end of the movable panel can be attached to the backboard of the shell, and an installation cavity is formed between the backboard and the movable panel;

The cleaning device is arranged in the mounting cavity, and the movable panel can isolate the cleaning device from the air inlet;

the movable panel can move between a first position and a second position, the movable panel is attached to the back plate when the movable panel is located at the first position, and the movable panel seals the air inlet when the movable panel is located at the second position;

the housing includes:

and the panel is used for forming the air inlet between the panel and the movable panel under the condition that the movable panel is positioned at the first position, and is attached to the panel under the condition that the movable panel is positioned at the second position.

2. The range hood of claim 1, wherein the range hood further comprises:

the driving assembly is connected with the movable panel and drives the movable panel to turn over.

3. The range hood of claim 1, wherein the cleaning device comprises:

a water pump device;

the spray washing assembly is connected with the water pump device;

the second driving piece is connected with the spray washing assembly and can drive the spray washing assembly to swing.

4. A range hood according to claim 3, wherein the spray assembly comprises:

the first end of the swing arm is connected with the second driving piece;

the spray head is arranged at the second end of the swing arm, and the spray head is connected with the water pump device.

5. The range hood of claim 4, wherein the range hood further comprises a hood body,

the first end of the swing arm is provided with a second through hole, and the hole wall of the second through hole comprises at least one plane;

the output shaft of the second driving piece is inserted into the second through hole, and the output shaft of the second driving piece is matched with the second through hole.

6. The range hood of claim 5, wherein the cleaning device further comprises:

the heating device is connected with the water pump device; and/or

A first protective cover, the interior of which forms a cavity in which the second drive member is mounted.

7. The range hood of claim 1, wherein the range hood is configured to,

the cleaning device is arranged on one side of the movable panel, which faces the backboard; and/or

The number of the cleaning devices is multiple, and the cleaning devices are arranged at intervals.

8. The range hood of claim 1, wherein the range hood is configured to,

the screen assembly is rotatably disposed in the receiving chamber.

9. The range hood of claim 1, wherein the range hood further comprises:

the fan assembly is arranged in the accommodating cavity, and the air suction inlet of the fan assembly faces the filter screen assembly;

the filter screen component is located between the air inlet and the fan component, so that the fan component can be driven to rotate when rotating.