CN214501379U

CN214501379U - Smoke exhaust ventilator

Info

Publication number: CN214501379U
Application number: CN202120538686.5U
Authority: CN
Inventors: 刘智; 黄石; 梁泽锋; 曲绍鹤
Original assignee: Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-10-26
Anticipated expiration: 2031-03-15

Abstract

The utility model discloses a range hood, this range hood includes: the range hood main body is provided with a smoke exhaust duct; the air purification device is arranged on the cigarette machine main body and comprises a purification shell, the purification shell is provided with an air inlet, an air outlet and a purification air channel communicated with the air inlet and the air outlet, and the purification air channel and the oil smoke suction air channel are not communicated with each other; and the germicidal lamp part is arranged on the air purification device and is used for sterilizing and disinfecting the air flow path from the air inlet to the air outlet. The utility model discloses technical scheme aims at the disinfection of disinfecting to the air to promote the air cleanliness factor in the kitchen environment.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to a kitchen appliance field, in particular to range hood.

Background

The pollution of oil smoke and the damage effect on the health of human bodies become important indoor environmental problems. The range hood can rapidly discharge waste gas generated by combustion of a cooking range and oil smoke generated in a cooking process to the outside, so that pollution to the air environment in a kitchen is reduced, but the problems of waste gas, oil smoke, peculiar smell and the like can be thoroughly solved and the range hood is difficult to solve, because pollutants escaping can always exist, the pollutants stay in the kitchen for a long time, and the health of people is threatened. Meanwhile, due to the existence of oil smoke in the kitchen environment for a long time, a large amount of bacteria and viruses are inevitably bred, and the health of human beings is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a range hood aims at disinfecting the air to promote the air cleanliness among the kitchen environment.

In order to achieve the above object, the utility model provides a range hood, include:

the range hood main body is provided with a smoke exhaust duct;

the air purification device is arranged on the cigarette machine main body and comprises a purification shell, the purification shell is provided with an air inlet, an air outlet and a purification air channel communicated with the air inlet and the air outlet, and the purification air channel and the oil smoke suction air channel are not communicated with each other; and

the sterilizing lamp part is arranged on the air purifying device and is used for sterilizing and disinfecting the air flow path from the air inlet to the air outlet.

The air purification device is used for removing escaping oil smoke, the germicidal lamp can emit ultraviolet rays, the ultraviolet rays can kill pathogens such as microorganisms through radiation damage and the function of destroying nucleic acids of the microorganisms, the ultraviolet rays have high sterilization intensity, bacteria and viruses can be killed in a short time, the ultraviolet-ray disinfection device belongs to a pure physical disinfection method, and no secondary pollution exists. Consequently, set up the bactericidal lamp spare in purifying the casing, can be to the air sterilization disinfection in the purifying the casing to reduce the bacterial content in the air from the air outlet outflow, thereby further promote the air cleanliness factor in the kitchen.

Optionally, the germicidal lamp unit is disposed in the purification air duct to sterilize air in the purification air duct.

It can be understood that, in the air purification device, the air need flow to the air outlet through the purification wind channel, therefore locate the bactericidal lamp spare in the purification wind channel and can disinfect the air in the purification wind channel to reduce the bacterial content in the air outlet outflow air.

Optionally, the germicidal lamp unit is disposed proximate to the air outlet.

Therefore, the bacteria content in the air flowing out of the air outlet can be further reduced.

Optionally, the air purification device further comprises an air guide cover arranged in the purification air duct, and the air guide cover is communicated with the air outlet; the air guide cover is provided with an installation groove, and the germicidal lamp piece is arranged in the installation groove.

The wind scooper is used for converting the wind path and gathering wind power, and the germicidal lamp piece is installed in the installation groove of the wind scooper so that the germicidal lamp piece can sterilize and disinfect the air flowing out of the air outlet, and therefore the bacterial content of the air flowing out of the air outlet is further reduced.

Optionally, the germicidal lamp assembly includes a lamp body and a base body, the base body is installed in the installation groove, and the lamp body is exposed outside the installation groove.

Therefore, ultraviolet light rays emitted by the lamp body cannot be blocked by the groove wall of the mounting groove, and the irradiation range of the germicidal lamp piece is enlarged.

Optionally, the light emitting direction of the lamp body faces the inner wall surface of the air guide cover to prevent light of the lamp body from leaking from the air outlet.

Therefore, the sterilizing ultraviolet light can not irradiate on the skin or eyes of the human body through the air outlet, so that the side effect of damaging the health of the human body is avoided, and a user can use the sterilizing and disinfecting functions safely and safely.

Optionally, the mounting groove is disposed through a wall surface of the wind scooper.

So, the mounting groove can have a notch at the surface of wind scooper, and the bactericidal lamp spare can be followed this notch and packed into the mounting groove to the installation convenience of bactericidal lamp spare has been promoted.

Optionally, the seat body is in interference fit with the mounting groove.

Therefore, the germicidal lamp component can be stably installed in the installation groove, continuously sterilizes and sterilizes the air flowing through the air guide cover, and can avoid the ultraviolet rays for sterilization from leaking from the wall surface of the air guide cover to damage the human health.

Optionally, the air guiding cover has a first end and a second end opposite to each other, the second end is close to the air outlet, the cross-sectional area of the first end is smaller than that of the second end, and the mounting groove is disposed close to the first end.

So, in mounting groove department, the disinfection lamp spare can be more concentrated to the disinfection of disinfecting of air, and in the second end, the air after disinfecting can be wider to kitchen space diffusion to promote the cleanliness factor of kitchen air.

Optionally, a plurality of mounting grooves and a plurality of germicidal lamp units are arranged in the air guiding cover, the mounting grooves are arranged in the circumferential direction of the first end at intervals, and at least one germicidal lamp unit is arranged in one mounting groove.

Therefore, the ultraviolet light emitted by the germicidal lamp component can be covered on the first end of the air guide cover in all directions to fully sterilize and disinfect the air flowing through the first end, so that the bacteria content in the air flowing out of the air outlet is further reduced.

Optionally, the air purification device further comprises a filter assembly arranged at the air inlet, and the filter assembly is provided with the germicidal lamp; the filter assembly comprises a filter element, and the luminous direction of the germicidal lamp piece faces the filter element so as to sterilize the filter element.

The sterilizing lamp part is used for sterilizing and disinfecting the filter element through the sterilizing light, so that bacteria breeding in the filter element is avoided, and the cleanliness of air flowing out of the air outlet is ensured.

Optionally, the filter assembly further comprises a filter box, the filter box is provided with a filter inlet, a filter outlet and a filter cavity communicated with the filter inlet and the filter outlet, the filter inlet is communicated with the filter chamber, the filter outlet is communicated with the air inlet, the filter element is installed in the filter cavity, and the germicidal lamp component is installed on the filter box.

Kitchen room air gets into the filter chamber from filtering the import, filters the back through the filter core, again from filtering in the export flows into the purification air flue, locates the sterilamp spare on the filter cartridge and is used for disinfecting to the filter core to avoid the filter core to breed the bacterium, thereby guarantee that the escape oil smoke in kitchen can obtain effectively purifying.

Optionally, the filter element further comprises a particle filter layer, and the light emitting direction of the germicidal lamp element faces the particle filter layer so as to sterilize the particle filter layer.

So, can avoid particle filtration layer to breed the bacterium to ensure that the air through particle filtration layer can not carry the bacterium that comes from the particle filtration layer, avoid the particle filtration layer to carry out secondary pollution to the kitchen air.

Optionally, the particle filter layer is close to the filter inlet, the filter cartridge further comprises an air inlet grille disposed at the filter inlet, and the germicidal lamp assembly is mounted on the air inlet grille.

So, the germicidal light that germicidal lamp spare sent can just to the surface of particle filter layer, and more intense illumination radiation can be accepted to the particle filter layer, has further promoted germicidal intensity of germicidal lamp spare to the particle filter layer.

Optionally, the germicidal lamp unit is provided in a plurality, and the plurality of germicidal lamp units are distributed along the longitudinal direction of the air inlet grille at intervals.

So, the bactericidal light of a plurality of bactericidal lamp spare can cover the surface of particle filter layer, can realize disinfecting to particle filter layer omnidirectional to further ensure no bacterial growing on the particle filter layer, thereby further reduce the bacterial content in the air that the air outlet flows out.

Optionally, the filter assembly is detachably mounted at the air inlet.

So, can be so that when wasing or changing air purification device's filter assembly, need not to dismantle the cigarette machine main part, therefore improved the dismouting efficiency to filter assembly.

Optionally, the filter cavity has an opening from which the particle filtration layer is drawably mounted within the filter cavity.

Therefore, the whole filtering assembly can be prevented from being replaced, and the cost can be saved.

Optionally, the germicidal lamp unit includes an LED germicidal lamp unit and/or a discharge germicidal lamp unit.

Both have advantages and can be applied to sanitary disinfection to play a role in sterilization.

Optionally, the germicidal lamp unit includes a UVC ultraviolet lamp unit and/or a vacuum ultraviolet lamp unit.

The UVC ultraviolet lamp has good sterilization effect, the vacuum ultraviolet lamp can sterilize and disinfect by generating ozone, and the vacuum ultraviolet lamp can be used alternatively or in combination.

Optionally, the air purification device includes a plurality of control switches, and the on and off of the air purification device and the germicidal lamp unit are controlled by different control switches respectively.

So, when the air cleanliness factor in kitchen is higher, can open air purification device alone and do not open the bactericidal lamp spare, can satisfy the purification to the kitchen air, avoid the energy extravagant.

The technical proposal of the utility model is to arrange the air purification device in the cigarette machine main body, so that when the air purification device and the cigarette machine main body work cooperatively, the escaping oil smoke is removed through the purification air channel in the air purification device, thereby reducing the pollution of the escaping oil smoke to the air environment and the damage to the human health; the sterilizing lamp piece arranged on the air purifying device can sterilize and disinfect the air flow path from the air inlet to the air outlet, effectively reduce the bacterial content in the air output by the air outlet, further purify the air in a kitchen, and further reduce the pollution of escaping oil smoke to the air environment and the damage to the human health.

Drawings

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

Fig. 1 is a front view of an embodiment of the range hood of the present invention;

fig. 2 is a side view of an embodiment of the range hood of the present invention;

FIG. 3 is a front view of an embodiment of the air purification device of the range hood of the present invention;

fig. 4 is an exploded view of an air purification device of a range hood according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is an exploded view of an embodiment of a filter assembly of the range hood of the present invention at a viewing angle;

fig. 7 is a schematic view of the filter cassette of fig. 6 from another perspective.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Cigarette machine main body	110	Decorative cover
120	Exhaust fume collecting hood	200	Air purifying device
				210	Purifying shell	211	Air inlet
212	Air outlet	300	Filter assembly
				310	Filter element	311	Particle filter layer
320	Filter cartridge	323	Filter chamber
				324	Air frame	325	Air inlet grille
326	Gripping part	327	Open mouth
				400	Sterilizing lamp component	510	Carrier
520	Excitation light source	410	Base body
				420	Lamp body	800	Wind scooper
810	Mounting groove	801	First end
				802	Second end

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a range hood.

In an embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 4, the range hood includes:

a range hood main body 100 provided with a range hood duct;

the air purification device 200 is arranged on the cigarette machine main body 100, the air purification device 200 comprises a purification shell 210, the purification shell 210 is provided with an air inlet 211, an air outlet 212 and a purification air channel communicated with the air inlet 211 and the air outlet 212, and the purification air channel and the oil fume suction air channel are not communicated with each other; and

the germicidal lamp unit 400 is disposed in the purification housing 210, and the germicidal lamp unit 400 is configured to sterilize an air flow path from the air inlet 211 to the air outlet 212.

In the present embodiment, the cigarette maker body includes a decorative cover 110 and a smoke collecting hood 120 provided below the decorative cover 110. An oil smoke suction air duct is arranged in the decorative cover 110, the oil smoke suction air duct is provided with an oil smoke inlet and an oil smoke outlet, the oil smoke inlet is communicated with the indoor space, and the oil smoke inlet is usually hung above the kitchen range, so that oil smoke is sucked into the oil smoke suction air duct; the smoke outlet is communicated with the outside to discharge the oil smoke in the oil smoke suction channel to the outside. It can be understood that the range hood main body 100 has the function of the conventional range hood, and can suck most of the oil smoke generated in the cooking process into the oil smoke suction duct and discharge the oil smoke to the outside.

The air purification device 200 is mainly used for further removing a small part of oil smoke escaping to other spaces in the kitchen, thereby effectively avoiding the pollution of the oil smoke to the air environment and the damage to the health of human bodies. The purifying air duct and the oil smoke suction air duct of the air purifying device 200 are not communicated with each other, that is, the purifying air duct and the oil smoke suction air duct are independent from each other. The air inlet 211 and the air outlet 212 are both communicated with the room, the air inlet 211 is used for sucking air in the kitchen room, and the air outlet 212 is used for discharging filtered and purified air back to the kitchen room.

It can be understood that the air purification apparatus 200 is further provided with the filter element 310 to filter the escaping oil smoke particles in the kitchen environment, however, the filter element 310 cannot completely filter the bacteria in the escaping oil smoke, and the kitchen environment has conditions favorable for bacteria proliferation, and if no sterilization measures are taken, the bacteria in the part will grow more bacteria. The utility model discloses in, the disinfection lamp spare 400 that air purification device 200 add can disinfect the disinfection to the air in air purification device 200 to reduce the bacterial content in the air energy of air outlet 212 outflow. Specifically, the germicidal lamp unit 400 emits ultraviolet rays that can kill pathogens such as microorganisms by damaging and destroying the nucleic acid function of the microorganisms (bacteria, viruses, spores) by radiation, and specifically, the action of the ultraviolet rays on the nucleic acid causes abnormal chemical bonds to be formed between adjacent pyrimidine molecules of DNA or RNA in the microbial cells such as bacteria and viruses, so as to block the replication of the DNA or RNA, thereby causing the microbial cells to die, and achieving the purpose of disinfection. The ultraviolet ray has high sterilizing strength, can kill bacteria and viruses in a short time, belongs to a pure physical disinfection method, and has no secondary pollution. The ultraviolet sterilization belongs to irradiation sterilization, and once bacteria in the air cleaning device are exposed to the irradiation range of the germicidal lamp unit 400, the germicidal lamp unit 400 can kill the bacteria.

In addition, the air cleaning device 200 is further provided with a cleaning fan, air in the kitchen can enter the air cleaning device 200 by driving of the cleaning fan, and can receive the sterilization effect of the germicidal lamp unit 400, and the sterilized air can be continuously discharged from the air outlet 212, so that an air circulation flow path can be formed in the kitchen, and the germicidal lamp unit 400 can continuously sterilize and disinfect the air in the kitchen, and further clean the air in the kitchen.

The technical scheme of the utility model is that the air purification device 200 is arranged in the cigarette machine main body 100, so that when the air purification device 200 and the cigarette machine main body 100 work cooperatively, most of the oil smoke generated in the cooking process is discharged to the outside through the oil smoke suction duct in the cigarette machine main body 100, a small part of the oil smoke can escape to other spaces in the kitchen, and the small part of the oil smoke can be further removed through the air purification device 200, thereby reducing the pollution of the escaping oil smoke to the air environment and the damage to the health of the human body; the germicidal lamp unit 400 is disposed on the air purification apparatus 200 and is used for sterilizing and disinfecting air flowing into the air purification apparatus 200 to further purify air in a kitchen, thereby further reducing pollution of escaping oil smoke to the air environment and damage to human health.

Further, in this embodiment, the germicidal lamp unit 400 is disposed in the purification air duct to sterilize the air in the purification air duct. It can be understood that in the air purification apparatus 200, the air needs to flow to the air outlet 212 through the purification air duct, so that the germicidal lamp assembly 400 disposed in the purification air duct can reduce the bacteria content in the air flowing out of the air outlet 212 by sterilizing the air in the purification air duct.

Further, in this embodiment, as shown in fig. 4, the germicidal lamp unit 400 is disposed near the air outlet 212. The germicidal lamp unit 400 is disposed near the air outlet 212, so that the air after being sterilized is prevented from being secondarily polluted in a purification air duct at the downstream of the germicidal lamp unit 400 to the maximum extent, and the bacterial content in the air flowing out of the air outlet 212 is further reduced.

Further, in this embodiment, as shown in fig. 3 to fig. 5, the air purification apparatus 200 further includes an air guiding cover 800 disposed on the purification air duct, and the air guiding cover 800 is communicated with the air outlet 212; the wind scooper 800 is provided with an installation groove 810, and the germicidal lamp unit 400 is disposed in the installation groove 810. The wind scooper 800 of the present embodiment is connected between the purification fan and the wind outlet 212, so that the air flowing out from the purification fan is converted into a flow path and plays a role of converging wind force, and the purification efficiency of the air purification apparatus 200 can be improved to a certain extent; the germicidal lamp unit 400 of the present embodiment is mounted in the mounting groove 810 of the wind guiding cover 800, so that the germicidal lamp unit can sterilize the air flowing out of the air outlet 212, thereby further reducing the bacteria content in the air flowing out of the air outlet 212.

Further, in this embodiment, as shown in fig. 4, the germicidal lamp assembly 400 includes a lamp body 420 and a seat body 410, the seat body 410 is installed in the installation slot 810, and the lamp body 420 is exposed outside the installation slot 810, so that the ultraviolet light emitted by the lamp body 420 is not blocked by the slot wall of the installation slot 810, and the irradiation range of the germicidal lamp assembly 400 is increased. Of course, in other embodiments, the wall of the mounting groove 810 can be made of a light-transmitting material, so that even though the lamp body 420 cannot be exposed out of the mounting groove 810, the light emitted from the lamp body 420 can be irradiated into the purification air duct.

Further, in this embodiment, the light emitting direction of the lamp body 420 faces the inner wall surface of the air guiding cover 800, so as to prevent the light of the lamp body 420 from leaking from the air outlet 212. Because the light-emitting direction of the lamp body 420 of the germicidal lamp unit 400 does not face the air outlet 212, the ultraviolet light for sterilization does not irradiate the skin or eyes of the human body through the air outlet 212, so as to prevent the germicidal lamp unit 400 from generating side effects of damaging the health of the human body, and thus the user can safely use the germicidal function of the germicidal lamp unit 400.

Further, in the embodiment, as shown in fig. 3 to 5, the mounting groove 810 is disposed through the wall surface of the wind scooper 800, so that the mounting groove 810 has a notch on the outer surface of the wind scooper 800, and the germicidal lamp assembly 400 can be mounted into the mounting groove 810 from the notch, thereby improving the mounting convenience of the germicidal lamp assembly 400.

Further, in this embodiment, the seat body 410 is in interference fit with the mounting groove 810, so that the germicidal lamp unit 400 can be stably mounted in the mounting groove 810 to continuously sterilize and disinfect the air flowing through the air guide cover 800, and in addition, ultraviolet rays for sterilization can be prevented from leaking from the wall surface of the air guide cover 800 to damage the health of the human body.

Further, in this embodiment, as shown in fig. 3, the wind scooper 800 has a first end 801 and a second end 802 opposite to each other, the second end 802 is close to the wind outlet 212, the cross-sectional area of the first end 801 is smaller than that of the second end 802, and the mounting groove 810 is disposed close to the first end 801. It can be understood that the first end 801 is connected to the purifying fan, the second end 802 is connected to the air outlet 212, and the first end 801 is located upstream of the second end 802, wherein the germicidal lamp assembly 400 is disposed near the first end 801, and because the cross-sectional area of the first end 801 is smaller, the germicidal lamp assembly 400 can sterilize and disinfect air more intensively at the installation slot 810, thereby further reducing the bacterial content in the air flowing out of the air outlet 212; the cross-sectional area of the second end 802 is larger, which is more favorable for the air diffusion after sterilization and disinfection, so as to improve the air cleanliness in the kitchen environment.

Further, in this embodiment, a plurality of mounting grooves 810 and a plurality of germicidal lamp units 400 are disposed in the air guiding cover 800, the mounting grooves 810 are disposed at intervals in the circumferential direction of the first end 801, and one mounting groove 810 is disposed with at least one germicidal lamp unit 400, so that the germicidal lamp units 400 can be distributed at intervals on the circumferential wall of the first end 801 of the air guiding cover 800, and thus, ultraviolet rays emitted by the germicidal lamp units 400 can cover the first end 801 of the air guiding cover 800 in all directions, so as to sufficiently sterilize and disinfect air passing through the first end 801, thereby further reducing the bacteria content in the air flowing out of the air outlet 212. Optionally, a plurality of germicidal lamp units 400 can be installed in one installation groove 810, the irradiation angle of the germicidal lamp units 400 is effective, the germicidal lamp units 400 are installed in the installation groove 810 at different installation angles, the illumination radiation angle of the installation groove 810 can be enlarged, and the first end 801 can be covered without arranging too many installation grooves 810 in the wind scooper 800, so that the structure of the wind scooper 800 is simpler, and the production and processing of the wind scooper 800 are facilitated.

Further, in this embodiment, the germicidal lamp assembly 400 is fixedly connected to the mounting groove 810 by a snap fit or an insertion or a screw locking manner, so as to improve the connection stability between the germicidal lamp assembly 400 and the mounting groove 810. It can be understood that the germicidal lamp unit 400 installed in the purification air duct will be impacted by the air flow, so it is necessary to ensure the connection stability with the installation groove 810 to ensure that it can stably perform the sterilization and disinfection function in the purification air duct. In addition, in this way, the detachable connection of the germicidal lamp unit 400 and the lamp unit mounting groove 810 can be realized, so as to facilitate the replacement of the germicidal lamp unit 400. Of course, in other embodiments, the housing of the germicidal lamp unit 400 may be integrally formed with the mounting groove 810, and the mounting groove 810 may be fixedly connected to the inner wall of the air guiding cover 800, so that the germicidal lamp unit 400 and the air guiding cover 800 may be fixedly connected.

Further, in this embodiment, as shown in fig. 7, the air purification apparatus further includes a filter assembly 300 disposed at the air inlet 211, and the filter assembly 300 is also provided with the germicidal lamp assembly 400; the filter assembly 300 includes a filter element 310, and the germicidal lamp assembly 400 emits light toward the filter element 310 to sterilize the filter element 310. In this embodiment, the bactericidal light that sterilamp spare 400 sent not only can disinfect to the air that flows through air intake 211 department, still can effectively kill the bacterium in the filter core 310, avoids the bacterial growing in the filter core 310, has further promoted the cleanliness factor of the air that air outlet 212 flows out.

Further, in this embodiment, the filter assembly 300 further includes a filter box 320, the filter box 320 is provided with a filter inlet, a filter outlet, and a filter cavity 323 communicating the filter inlet and the filter outlet, the filter inlet is communicated with the filter chamber, the filter outlet is communicated with the air inlet 211, the filter element 310 is installed in the filter cavity 323, and the germicidal lamp assembly 400 is installed on the filter box 320. Kitchen indoor air gets into in the filter chamber 323 from filtering the import, after the filter core 310 filters, flows into from filtering the export again and purifies in the wind channel, locates germicidal lamp spare 400 on filter cartridge 320 and is used for disinfecting to filter core 310 to avoid filter core 310 to breed the bacterium, thereby make the escape oil smoke in kitchen obtain effectively purifying.

Further, in the present embodiment, as shown in fig. 4, the filter assembly 300 is detachably installed at the intake vent 211. It can be understood that the filter assembly 300 has a limited ability to absorb soot particles, and the filter assembly 300 needs to be replaced or cleaned periodically to enable the air purification apparatus 200 to continue filtering soot particles. The filter assembly 300 in this embodiment is detachably installed at the air inlet 211, so that the cigarette maker main body 100 does not need to be disassembled when the filter assembly 300 of the air purification device 200 is cleaned or replaced, thereby improving the disassembling and assembling efficiency of the filter assembly 300. Here, the size and shape of the mounting opening may be adapted to the size and shape of the filter assembly 300. Optionally, the filter assembly 300 further comprises a handle 326 for being held by a hand to disassemble and assemble the filter assembly 300. There are many configurations for the grip portion 326, for example, the grip portion 326 may be, but is not limited to, a grip post, a grip rod, a grip groove, and the like.

Further, in this embodiment, the filter element 310 includes a particle filter layer 311, and the germicidal lamp assembly 400 is disposed on the filter cartridge 320 and emits light toward the particle filter layer 311, so as to sterilize and disinfect the particle filter layer 311. Because particle filter layer 311 is used for adsorbing the PME in the oil smoke, so the particle filter layer 311 surface will be attached with the oil smoke granule, for avoiding these oil smoke granules to breed the bacterium, the luminous direction of sterilamp spare 400 sets up towards particle filter layer 311 to disinfect particle filter layer 311, thereby ensure that the air through particle filter layer 311 can not carry the bacterium that comes from particle filter layer 311, avoid the secondary pollution to the kitchen air. In particular, the Particulate filtering layer includes HEPA (High Efficiency Air filtration) Filter paper containing a PP (polypropylene) meltblown layer subjected to electrostatic electret treatment, glass fiber, electrospun nanofiber or PTFE (polytetrafluoroethylene) membrane, and the Particulate filtering layer 311 made of these materials has High filtering Efficiency and is more favorable for adsorption of soot particles.

Further, in this embodiment, as shown in fig. 7, the filter box 320 further includes an air inlet grille 325 disposed at the filter inlet, and the germicidal lamp unit 400 is mounted to the air inlet grille 325 to sterilize the particle filtering layer 311. The air inlet grille 325 can prevent foreign matters from entering the purification air duct through the filtering inlet, the germicidal lamp unit 400 is mounted on the air inlet grille 325, the germicidal light emitted by the germicidal lamp unit can be over against the surface of the particle filter layer 311, and the particle filter layer 311 is arranged closer to the air inlet grille 325, so that the particle filter layer 311 can also receive stronger irradiation, and the germicidal intensity of the germicidal lamp unit 400 is further improved. Without loss of generality, the germicidal lamp assembly 400 may be attached to the grille 325 by means of adhesive or embedding, so as to be stably fixed to the grille 325. Of course, in other embodiments, the germicidal lamp unit 400 may be mounted on the inner top wall and the inner bottom wall of the filter box 320, and the light emitted from the germicidal lamp unit may be irradiated onto the particle filtering layer 311.

Further, in the present embodiment, as shown in fig. 7, the germicidal lamp assembly 400 is provided in a plurality, and the germicidal lamp assembly 400 is distributed at intervals along the longitudinal direction of the air intake grille 325. It can be understood that germicidal lamp fixture 400 has a certain irradiation angle, and the ultraviolet ray that single germicidal lamp fixture 400 sent hardly covers filter core 310, in this embodiment, filter assembly 300 is equipped with a plurality of germicidal lamp fixtures 400, can more conveniently cover filter core 310 in germicidal lamp fixture 400's irradiation range to carry out the omnidirectional abundant disinfection of disinfecting to filter core 310, thereby ensure the cleanliness factor of the air that air outlet 212 flows. The plurality of germicidal lamp units 400 are distributed along the longitudinal direction of the air inlet grille 325 at intervals, so that germicidal light rays of the plurality of germicidal lamp units 400 can cover the surface of the particle filter layer 311 to realize omnibearing disinfection and sterilization of the particle filter layer 311, thereby ensuring that no bacteria are bred on the particle filter layer 311.

Further, in the present embodiment, as shown in fig. 6, the filter cavity 323 has an opening 327, and the particle filtering layer 311 is installed in the filter cavity 323 in a manner of being drawable from the opening 327. It can be understood that the adsorption of the particle filtering layer 311 to the soot particles is limited, the germicidal lamp unit 400 can only inactivate bacteria thereon, and cannot decompose the soot particles, and when the adsorption of the particle filtering layer 311 to the soot particles reaches saturation, the soot particles can be extracted from the opening 327 and replaced with a new particle filtering layer 311, so as to ensure that the air purification apparatus 200 can effectively purify the escaping soot. Thus, the replacement of the entire filter assembly 300 is avoided, and the cost can be saved.

Further, in the present embodiment, the germicidal lamp assembly 400 is an LED germicidal lamp assembly and/or a discharge germicidal lamp assembly. The LED germicidal lamp has excellent directivity and environmental protection, and has the advantages of high switching speed, narrow spectrum, long service life and the like; the discharge sterilizing lamp is mainly a mercury vapor discharge ultraviolet lamp, has mature technology, low price, high brightness, higher ultraviolet radiation efficiency and longer service life. Therefore, both of them are suitable for sanitary disinfection to exert the sterilization effect. In this embodiment, the germicidal lamp unit 400 may be a single type, or a combination of different numbers and different types, and in practical applications, technicians may select different combinations according to their needs.

Further, in the present embodiment, the germicidal lamp unit 400 includes a UVC ultraviolet lamp unit and/or a vacuum ultraviolet lamp unit. Generally, long-wave ultraviolet rays with the wavelength of 315-390 nm are abbreviated as UVA, medium-wave ultraviolet rays with the wavelength of 280-315 nm are abbreviated as UVB, short-wave ultraviolet rays with the wavelength of 200-280 nm are abbreviated as UVC, and short-wave ultraviolet rays with the wavelength of 10-200 nm are abbreviated as vacuum ultraviolet rays. The UVC ultraviolet lamp can emit short-wave ultraviolet rays with the wavelength of 200-280 nm, and nucleic acid can strongly absorb the ultraviolet rays with the wave band, so that abnormal chemical bonds are formed between DNA or RNA adjacent pyrimidine molecules in microbial cells such as bacteria, viruses and the like, the replication of the DNA or RNA is hindered, the microbial cells are killed, and the aims of sterilization and disinfection are fulfilled. The vacuum ultraviolet lamp can emit short-wave ultraviolet rays with the wavelength of 10-200 nm, the ultraviolet rays in the wave band can ionize oxygen in the air to generate oxygen ions, free oxygen ions are unstable and then are combined with the oxygen in the air to generate ozone with strong oxidation effect, and the ozone can also effectively kill bacteria. The germicidal lamp unit 400 in this embodiment may be one or more UVC ultraviolet lamp units or vacuum ultraviolet lamp units of a single type, or a combination of different numbers of UVC ultraviolet lamp units or vacuum ultraviolet lamp units to kill bacteria in various ways.

Further, in this embodiment, as shown in fig. 4, the air inlet 211 is disposed on a side surface of the purification housing. It can be understood that the oil smoke that the culinary art produced escapes from range hood's side easily, and in this embodiment, air intake 211 locates the side of purifying housing, more is favorable to installing in the filtering component 300 of air intake 211 purifying escaping the oil smoke to promote the cleanliness factor of kitchen air.

Further, in this embodiment, as shown in fig. 4, the air inlets 211 are disposed on two opposite side surfaces of the purifying housing, so as to further improve the purifying efficiency of the filtering assembly 300 for escaping lampblack; two filter assemblies 300 are correspondingly arranged, and each filter assembly 300 is provided with the germicidal lamp unit 400, so that the filter element 310 of each filter assembly 300 can receive the germicidal effect of the germicidal lamp unit 400.

Further, in this embodiment, the air purification device 200 further includes a photolysis module, the photolysis module is disposed at the air inlet 211 for filtering the volatile gas. Considering that during cooking, edible oil and food undergo a series of chemical reactions such as oxidation, cracking and polymerization at high temperature, a large amount of organic smoke is evaporated, and part of decomposed substances are emitted into air in the form of oil mist to form oil smoke. The oil fume includes both edible oil and its heating decomposition or cracking product and also includes the physical and chemical reaction product of protein, polymer compound and various seasoning matters in food, and is one kind of matter containing gas, liquid and solid. Generally, the Particulate Matter Emission (PME) composed of liquid and solid in the oil smoke emission is defined as PME, and the Volatile Organic Compounds emission (VOCs) is defined as VOCs, and the oil smoke is composed of the above two substances. In this embodiment, filtering component 300 has add the photodissociation module, the photodissociation module can produce the material of strong oxidizing property (such as hydroxyl free radical, oxygen etc.), can be with volatile gaseous decomposition for carbon dioxide and water, decompose chlorine-containing organic matter into carbon dioxide, water and hydrogen chloride, the photodissociation module can thoroughly innovate volatile gaseous promptly, consequently, the volatile gaseous (also be VOCs) in the photodissociation module degradable kitchen environment, can promote the air cleanliness factor in the kitchen environment, reduce the harm of the escape oil smoke in the kitchen to human health.

Further, in the present embodiment, as shown in fig. 6, the photolysis module includes a carrier 510, a photocatalytic material attached to the carrier 510, and an excitation light source 520, wherein the excitation light source 520 emits light toward the photocatalytic material for exciting the photocatalytic material. Alternatively, the photocatalytic material used to purify VOCs may be one or a combination of more than one of TiO2, WO3, CuO, Cu2O, ZnS, ZnO, CdS, CdSe, Fe3O4, Fe2O3, FeTiO3, Bi2O3, biooi, BiOCl, BiOBr, BiOF, BiVO4, BiWO4, Bi2MoO6, CdWO4, In2O3, Ag3PO4, AgCl, AgBr, AgI, MoO3, MoS2, SrTiO3, V2O5, SnO2, PbO, Co3O4, NiO, CeO2, MnOx, Cr2O3, or ZrO 2. The carrier 510 is used for fixing the photocatalytic material to prevent the photocatalytic material from losing, so as to improve the utilization rate of the photocatalytic material; the photocatalytic material can convert light energy into chemical energy, and can generate substances with strong oxidizing property under the irradiation of the excitation light source 520 so as to promote the decomposition of volatile gas and improve the cleanliness of kitchen air.

Further, in the present embodiment, as shown in fig. 6, the carrier 510 is a mesh-like porous structure to increase the specific surface area of the carrier 510, so that more photocatalytic materials can be attached to the carrier 510 to generate more strongly oxidizing substances, thereby improving the efficiency of the photolysis module in degrading volatile gases.

Further, in the present embodiment, the carrier 510 includes a metal foam or a honeycomb ceramic or a ceramic foam. Specifically, the carrier 510 may be Ni, Cu, Al, Fe-based foamed metal, cordierite, mica-based honeycomb ceramic, SiC, Al2O 3-based foamed ceramic, and the like. The material is of a porous structure, has good adhesiveness and good acid-base resistance and high temperature resistance, is suitable for serving as a carrier 510 of a photocatalytic material, and can effectively increase the contact area of the photocatalytic material and volatile gas, thereby increasing the degradation efficiency of the photolysis module on the volatile gas. Of course, in other embodiments, the carrier 510 may be a foam-like or metal-like photocatalytic mesh structure made of other materials.

Further, in the present embodiment, the photocatalytic material includes a modifying dopant and/or an electron conduction enhancer and/or an adsorbent, and the modifying dopant, the electron conduction enhancer and the adsorbent can be used to enhance the photocatalytic activity of the photocatalytic material.

Wherein the modified dopant includes metal doping (e.g., Fe, Co, Ni, Cu, Ag, V, Mg, Ce, etc.), non-metal doping (e.g., F, S, N, P, etc.), noble metal deposition (e.g., Au, Ag, Pt, Rh, Pd, etc.), semiconductor recombination (e.g., recombination between the above-listed photocatalytic materials); the electron conduction enhancer includes: graphene, carbon nanotubes, football alkene or other high molecular polymers containing graphite materials, polyaniline, polypyrrole and the like; the adsorbent comprises: activated alumina, activated carbon, hydroxyapatite, diatomaceous earth, and the like.

The substances can be added into the photocatalytic material and organically combined with the photocatalytic material to improve the photocatalytic activity of the photocatalytic material, so that the photocatalytic material can be easily excited by a laser light source; and also expands the spectral response range of the photocatalytic material, thereby increasing the utilization of the light emitted from the excitation light source 520.

Further, in the present embodiment, the excitation light source 520 includes an LED lamp and/or a discharge lamp. Both of them are suitable for being used as the excitation light source 520 of the photolysis module, alternatively, the excitation light source 520 may be a single type of light source, or may be a combination of different types of light sources, and in practical applications, the suitable excitation light source 520 may be selected according to different requirements.

Further, in the present embodiment, the excitation light source 520 includes a first excitation light source having a wavelength ranging from 360nm to 390 nm. Under the light irradiation of this wave band, photocatalytic material's photocatalytic activity is stronger, and photocatalytic material can produce more strong oxidizing substance to promote the degradation efficiency of photolysis module to volatile gas.

Further, in this embodiment, the excitation light source 520 further includes a second excitation light source having a wavelength ranging from 200nm to 300 nm. The light of the wave band is deep ultraviolet light, and the nucleic acid can strongly absorb the ultraviolet light of the wave band, so that abnormal chemical bonds are formed between DNA or RNA adjacent pyrimidine molecules in microbial cells such as bacteria and viruses to block the replication of the DNA or RNA, so that the microbial cells are killed, the purposes of sterilization and disinfection are achieved, and the cleanliness of the air in a kitchen is further improved.

Further, in this embodiment, the excitation light sources 520 further include a third excitation light source having a wavelength less than 200 nm. The light of this wave band is vacuum ultraviolet light, and oxygen in the ionized air produces the oxygen ion, and free oxygen ion is unstable, can combine with the oxygen in the air, produces the ozone that has strong oxidation effect, and ozone not only can kill the bacterium effectively, can also promote the decomposition of volatile gas to further promote volatile gas's degradation efficiency, thereby further promote the air cleanliness factor in the kitchen.

Further, in this embodiment, the excitation light sources 520 may be a combination of different numbers of the first excitation light source, the second excitation light source and the third excitation light source to achieve better air purification effect.

Further, in the present embodiment, as shown in fig. 4 and 6, the filter element 310 and the carrier 510 are installed in the filter cavity 323. Kitchen air enters the filter chamber 323 from the filter inlet, passes through the filter element 310 and the carrier 510, and then flows into the clean air duct from the filter outlet. Specifically, the air passes through the filter element 310, so that PME components (i.e. oil smoke particles) in the oil smoke can be adsorbed, the air passes through the carrier 510, so that VOCS components (i.e. volatile gas) in the oil smoke can be decomposed, and the filter element 310 and the photolysis module are matched to thoroughly filter harmful components in the air in the kitchen, so that the air cleanliness in the kitchen is improved.

Further, in this embodiment, as shown in fig. 6, the carrier 510 is disposed on a side of the filter element 310 away from the filter inlet. When air in a kitchen enters the air purification apparatus 200, the air passes through the filter element 310 first, so that the oil smoke particles are filtered to prevent the oil smoke particles from attaching to the carrier 510. It can be understood that if the soot particles are attached to the surface of the carrier 510, the photocatalytic material is blocked from receiving light, and thus, the photocatalytic material cannot generate enough strongly oxidizing substances, which will affect the decomposition of the volatile gas. In this embodiment, filter core 310 is closer to and filters the import setting, can avoid the emergence of above-mentioned condition to guarantee that the photodissociation module can effectively purify the volatile gas in the escape oil cigarette, thereby promote the air cleanliness factor in the kitchen. Of course, in other embodiments, the support 510 may be disposed on the side of the filter element 310 near the filter inlet, and the photolysis module may be guaranteed to effectively degrade the volatile gas by replacing the support 510.

Further, in this embodiment, the photocatalytic material is attached to a surface of the carrier 510 facing away from the filter element 310, so that the photocatalytic material is exposed to the excitation light emitted from the excitation light source 520, thereby ensuring effective degradation of the volatile gas by the photolysis module. In addition, in order to improve the compactness of the filter assembly 300, the carrier 510 can be tightly attached to the filter element 310, and the photolysis process of the photolysis module is not affected. Of course, in other embodiments, the photocatalytic material may be attached to a surface of the carrier 510 near the filter element 310, and the excitation light source 520 may be disposed between the carrier 510 and the filter element 310, which may also ensure effective degradation of the volatile gas by the photolysis module.

Further, in this embodiment, as shown in fig. 6, the filter box 320 further includes an air passing frame 324 disposed at the filtering outlet, the excitation light source 520 is disposed on the air passing frame 324, the emitted sterilization light can be directly opposite to the surface of the carrier 510, so that the photocatalytic material on the surface of the carrier 510 can receive stronger irradiation, so as to increase the strong oxidizing substance generated on the surface of the carrier 510, and thus the efficiency of the photolysis module in degrading the volatile gas is improved. Without loss of generality, the excitation light sources 520 may be adhered or embedded on the air frame 324 to be stably fixed on the air frame 324. Of course, in other embodiments, the excitation light sources 520 may be mounted on the inner top wall and the inner bottom wall of the filter cartridge 320, and the light emitted therefrom may be irradiated on the surface of the carrier 510.

Further, in the present embodiment, the photolysis module includes a plurality of excitation light sources 520, and the excitation light sources 520 are spaced apart from each other in the longitudinal direction of the wind flowing frame 324. Thus, the excitation light of the excitation light sources 520 can cover the surface of the carrier 510, so that the photocatalytic material on the surface of the carrier 510 is fully activated, i.e., more strong oxidizing substances can be generated, the efficiency of the photolysis module for degrading the volatile gas is improved, and the cleanliness of the kitchen air is improved.

Further, in the present embodiment, as shown in fig. 1 and 2, the cigarette maker main body 100 includes a decorative cover 110 and a smoke collecting hood 120 provided below the decorative cover 110, and the purifying housing 210 is provided inside the decorative cover 110. Thus, the air purification device 200 can be hidden in the decoration cover 110, so as to save the installation space of the range hood. Of course, in other embodiments, the outer purifying housing may be provided outside the trim cover 110 so that the cigarette maker body 100 and the air purifying device 200 may be assembled separately.

Further, in this embodiment, the air purification device 200 includes a plurality of control switches, and the opening and closing of the air purification device 200, the germicidal lamp unit 400, and the photolysis module are controlled by different control switches respectively.

Firstly, when the air cleanliness of the kitchen is high, the air purification device 200 can be independently started without starting the germicidal lamp 400 arranged in the purification air duct, so that the air purification of the kitchen can be satisfied, and the energy waste can be avoided.

Secondly, the air purification device 200 can purify escaping oil smoke and the sterilizing and disinfecting of the filter element 310 by the germicidal lamp unit 400 arranged at the air inlet can be respectively and independently performed without affecting each other. It can be understood that bacterial growth needs certain conditions, therefore, as long as regularly open germicidal lamp spare 400, can make particle filter layer 311 not possess the condition of breeding the bacterium for a long time, thereby effectively avoid bacterial growth on particle filter layer 311, and needn't open germicidal lamp spare 400 for a long time, cause the waste of the energy, and germicidal light of germicidal lamp spare 400 has certain injury to the human body, although its germicidal light is towards filter core 310, but under certain angle, the user probably has the risk of exposing under germicidal light, therefore, optionally, the user can select to open germicidal lamp spare 400 alone after cooking finishes at every turn, disinfect to particle filter layer 311, neither can receive ultraviolet radiation, can avoid breeding the bacterium on filter core 310 again.

Moreover, it can be understood that when the cooking generates a small amount of oil smoke, the oil smoke escaping from the air in the kitchen is not too much, and at this time, the filter element 310 of the air purification device 200 is enough to filter and absorb the oil smoke particles and volatile gas in the escaping oil smoke, and the photolysis module is not required to be used, so that the cleanliness of the air in the kitchen can reach the standard without damaging the health of the human body.

Therefore, different functions of the air purification apparatus 200 are controlled by different control switches, so that more purification modes can be provided for the user to select. Of course, in other embodiments, the air purification apparatus 200 may be provided with only one control switch, and the user may select a desired function in the function menu by means of the control switch.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A range hood, comprising:

the range hood main body is provided with a smoke exhaust duct;

2. The range hood of claim 1 wherein the germicidal lamp unit is disposed within the clean air duct to sterilize air within the clean air duct.

3. The range hood of claim 2 wherein the germicidal lamp assembly is disposed proximate the air outlet.

4. The range hood according to claim 3, wherein the air purification device further comprises an air guide cover arranged in the purification air duct, and the air guide cover is communicated with the air outlet;

the air guide cover is provided with an installation groove, and the germicidal lamp piece is arranged in the installation groove.

5. The range hood according to claim 4, wherein the germicidal lamp assembly includes a lamp body and a base body, the base body is installed in the installation slot, and the lamp body is exposed from the installation slot.

6. The range hood according to claim 5, wherein the light-emitting direction of the lamp body faces an inner wall surface of the wind scooper to prevent light of the lamp body from leaking from the wind outlet.

7. The range hood of claim 5 wherein the mounting slot extends through a wall of the wind scooper.

8. The range hood of claim 7 wherein the mount is in interference fit with the mounting slot.

9. The range hood of claim 4, wherein the wind scooper has a first end and a second end opposite to each other, the second end is close to the wind outlet, the cross-sectional area of the first end is smaller than that of the second end, and the mounting groove is disposed close to the first end.

10. The range hood of claim 9 wherein a plurality of mounting slots and a plurality of germicidal lamp assemblies are disposed within the wind scooper, the mounting slots being spaced circumferentially about the first end, at least one germicidal lamp assembly being disposed in one of the mounting slots.

11. The range hood of claim 1, wherein the air purification device further comprises a filter assembly disposed at the air inlet, and the filter assembly is provided with the germicidal lamp;

the filter assembly comprises a filter element, and the luminous direction of the germicidal lamp piece faces the filter element so as to sterilize the filter element.

12. The range hood of claim 11, wherein the filter assembly further comprises a filter box, the filter box is provided with a filter inlet, a filter outlet, and a filter chamber communicating the filter inlet and the filter outlet, the filter inlet is communicated with the chamber, the filter outlet is communicated with the air inlet, the filter element is installed in the filter chamber, and the germicidal lamp assembly is installed on the filter box.

13. The range hood of claim 12 wherein the filter element further comprises a particle filter layer, and the germicidal lamp assembly emits light in a direction toward the particle filter layer to sterilize the particle filter layer.

14. The range hood of claim 13 wherein the particle filter layer is disposed adjacent to the filter inlet, the filter cartridge further comprising an air inlet grill disposed at the filter inlet, the germicidal lamp assembly being mounted to the air inlet grill.

15. The range hood of claim 14 wherein a plurality of germicidal lamp assemblies are provided, the plurality of germicidal lamp assemblies being spaced apart longitudinally along the air intake grill.

16. The range hood of claim 13 wherein the filter chamber has an opening, the particle filtration layer being removably mounted within the filter chamber from the opening.

17. The range hood of claim 11 wherein the filter assembly is removably mounted to the air inlet.

18. The range hood of claim 1 wherein the germicidal lamp assembly comprises an LED germicidal lamp assembly and/or a discharge germicidal lamp assembly;

and/or the germicidal lamp unit comprises a UVC ultraviolet lamp unit and/or a vacuum ultraviolet lamp unit.

19. The range hood according to any one of claims 1 to 18, wherein the air cleaning device comprises a plurality of control switches, and the on/off of the air cleaning device and the germicidal lamp unit are controlled by different control switches respectively.