CN215808694U

CN215808694U - Smoke exhaust ventilator

Info

Publication number: CN215808694U
Application number: CN202120779147.0U
Authority: CN
Inventors: 刘智; 曲绍鹤; 李忠华
Original assignee: Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-02-11
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a range hood which comprises a shell and a purification assembly, wherein the shell is provided with a smoke exhaust air channel and a smoke suction port communicated with the smoke exhaust air channel; the purification subassembly sets up in the casing, the purification subassembly is formed with the purification wind channel, purify the wind channel with the wind channel mutual independence of discharging fume, just the purification wind channel is in the upper and lower direction of casing extends, the casing is provided with the intercommunication purify the air intake and the air outlet in wind channel, wherein, the air outlet is seted up in the roof of casing face to the top, the air intake be located in the casing with on the diapire of relative setting from top to bottom of roof. The technical scheme of the utility model reduces the pollution of the oil smoke to the kitchen environment and the damage to the human health.

Description

Smoke exhaust ventilator

Technical Field

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

Background

During the cooking process, oil smoke is generated, and the oil smoke not only pollutes the air environment, but also damages the health of human bodies. The traditional range hood can rapidly discharge oil smoke to the outside, and reduces the pollution to the air environment in a kitchen and the damage to the health of human bodies. However, during cooking, there is always oil smoke escaping from the conventional range hood and dissipating into the kitchen space. The escaping oil smoke can still cause oil smoke pollution and harm to the health of human bodies.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a range hood, aiming at further reducing the pollution of oil smoke to the kitchen environment and the damage to the human health.

In order to achieve the above object, the present invention provides a range hood, comprising:

the device comprises a shell, a fan and a fan, wherein the shell is provided with a smoke exhaust air channel and a smoke suction port communicated with the smoke exhaust air channel;

the purification subassembly sets up in the casing, the purification subassembly is formed with the purification wind channel, purify the wind channel with the wind channel mutual independence of discharging fume, just the purification wind channel is in the upper and lower direction of casing extends, the casing is provided with the intercommunication purify the air intake and the air outlet in wind channel, wherein, the air outlet is seted up in the roof of casing face to the top, the air intake is located in the casing with on the diapire of relative setting from top to bottom of roof.

The technical proposal of the utility model is that a purifying component is arranged in a casing of the range hood, a purifying air channel which is mutually independent with a smoke exhaust air channel arranged in the casing is formed in the purifying component, wherein the casing is provided with an air inlet and an air outlet which are communicated with the purifying air channel, therefore, in the use process of the range hood, most of the oil smoke generated by cooking is exhausted to the outside of a kitchen through the smoke exhaust air channel, and a small part of the oil smoke escaping to the environment of the kitchen can be purified through the function of the purifying component, meanwhile, the air outlet communicated with the purifying air channel is arranged on the top wall of a fan cover, the air purified by the purifying component is blown upwards, so that in the use process, when the escaping oil smoke upwells and gathers at the top position of the environment in the room such as the kitchen, on one hand, the clean air flow blown upwards can dilute the oil smoke air, on the other hand, under the impact of the clean air flow blown upwards, the oil smoke gathered at the top of the kitchen can flow fast, circulate downwards along the inner wall of the kitchen and finally be sucked by the smoke suction port of the range hood below and be discharged outdoors by the smoke discharge air duct, so that the indoor air environment of the kitchen is greatly improved, and the amount of the sucked oil smoke is greatly reduced for a cook in the kitchen environment, thereby improving the health of the human body.

Optionally, the smoke suction port comprises an upper smoke suction port located on the upper part of the smoke collection cover and a lower smoke suction port located on the lower part of the smoke collection cover, and the upper smoke suction port is located between the two air inlets.

Optionally, the bottom wall is inclined from top to bottom towards the rear side of the fume collecting hood.

Optionally, an oil receiving box is mounted at the bottom of the fume collecting hood.

Optionally, the purification assembly includes an air duct, a fan, and a filter element disposed between the air inlet and the air outlet, the air duct is connected to the fume collecting hood and has a lower air inlet and an upper air outlet, the lower air inlet is communicated with the air inlet, the upper air outlet is communicated with the air outlet, and the fan and the filter element are disposed in the air duct.

Optionally, the filter element is extractable from the air duct and the hood.

Optionally, the smoke collecting cover further comprises side walls connected to the left side and the right side of the top wall, dismounting ports are formed in the side walls, the air duct faces towards one side of the side walls, mounting ports corresponding to and communicated with the dismounting ports are formed in one side of the side walls, and the filter piece can be sequentially drawn out through the mounting ports and the dismounting ports.

Optionally, a support member extending from the mounting opening to the inside of the air guide duct is further connected in the air guide duct, and the filter member is mounted on the support member.

Optionally, a filter door body capable of opening or closing the disassembly and assembly port is mounted on the side wall.

Optionally, the fan is an axial fan.

Optionally, the top wall is provided with a mounting bracket at the air outlet, and the fan is hoisted to the mounting bracket.

Optionally, a protective net is installed at the air outlet.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 schematic perspective view of a range hood according to an embodiment of the present invention;

fig. 2 is another schematic perspective view of the range hood of fig. 1;

FIG. 3 is a schematic top view of the range hood of FIG. 1;

fig. 4 is a schematic side view of the range hood of fig. 1;

FIG. 5 is a cross-sectional view of the structure of FIG. 4;

FIG. 6 is a schematic view of a portion of the range hood of FIG. 1;

FIG. 7 is a schematic structural diagram of another portion of the range hood of FIG. 1;

fig. 8 is an exploded view of the structure of fig. 7.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Casing (CN)	125	Front wall
11	Fan cover	126	Filter door body
				12	Exhaust fume collecting hood	127	Protective net
121	Roof wall	128	Mounting bracket
				1211	Air outlet	129	Condensing plate
1212	Air inlet	20	Purification assembly
				122	Bottom wall	21	Fan blower
1221	Lower smoke suction mouth	22	Air duct
				1222	Upper smoking mouth	221	Mounting port
123	Side wall	222	Support piece
				1231	Dismounting port	23	Filter element
124	Rear wall	30	Oil receiving box

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

Detailed Description

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

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are 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, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a range hood.

Referring to fig. 1 to 5, in an embodiment of the present invention, the range hood includes a casing 10 and a purification assembly 20, the casing 10 is provided with a smoke exhaust duct and a smoke suction port communicating with the smoke exhaust duct, the purification assembly 20 is disposed in the casing 10, the purification assembly 20 is formed with a purification duct, the purification duct and the smoke exhaust duct are independent from each other, the purification duct extends in an up-down direction of the casing 10, the casing 10 is provided with an air inlet 1212 and an air outlet 1211 communicating with the purification duct, wherein the air outlet 1211 is disposed on a top wall 121 facing upward of the casing 10, and the air inlet 1212 is located on a bottom wall 122 of the casing 10 disposed opposite to the top wall 121.

Casing 10 includes fan guard 11 and collection petticoat pipe 12, and collection petticoat pipe 12 is connected in the bottom of fan guard 11, and during the use, collection petticoat pipe 12 is closer to the top of a kitchen range, and the exhaust fume duct is extended to fan guard 11 by collection petticoat pipe 12, and in some embodiments, the volume of collection petticoat pipe 12 will be greater than the volume of fan guard 11, this is because collection petticoat pipe 12 needs to have great covering surface, and the oil smoke that produces in the culinary art process of corresponding collection that can be better to reduce the escape of oil smoke. The smoke exhaust fan is arranged in the fan cover 11 and can be a centrifugal fan, an axial flow fan, a cross flow fan 21 and the like, the application is not limited to this, and the smoke exhaust fan can be selected to be the centrifugal fan based on the consideration of factors such as power, noise and the like. The purifying assembly 20 is disposed in the smoke collecting hood 12, the air outlet 1211 is disposed on the top wall 121 of the smoke collecting hood 12, the air inlet 1212 is disposed on the bottom wall 122 of the smoke collecting hood 12 opposite to the top wall 121, the purifying assembly 20 is disposed on the smoke collecting hood 12 according to the present application, and the volume of the smoke collecting hood 12 is larger than the volume of the fan housing 11, so that the purifying assembly 20 is disposed in the smoke collecting hood 12, and the inner space of the smoke collecting hood 12 can be fully utilized, so that the overall volume of the range hood is not too large.

The utility model provides a purify wind channel and exhaust fume duct mutually independent among the range hood for range hood possesses traditional range hood's function, in the use, the smoke absorption mouth intercommunication is for example the indoor installation environment such as kitchen that range hood located, wherein, range hood still includes and communicates outdoor exhaust port with exhaust fume duct intercommunication, and be provided with the driving air current and inhale the exhaust fume duct by the smoke absorption mouth and by the exhaust fume fan of exhaust port exhaust, in the use, range hood installs in the top of a kitchen range, the oil smoke that produces during the culinary art inhales the exhaust fume duct through the smoke absorption mouth with most, and through the exhaust port discharge chamber outdoor. Because the purifying assembly 20 is further disposed in the casing 10 of the range hood of the present application, a small portion of the oil smoke dissipated around the range hood or into the kitchen environment can enter the purifying air duct through the air inlet 1212, and fresh air is formed through the purifying and filtering actions of the purifying assembly 20 and then exhausted to the indoor environment of the kitchen through the air outlet 1211.

According to the technical scheme, the purification component 20 is arranged in the shell 10 of the range hood, the purification component 20 is internally provided with the purification air channel which is mutually independent from the smoke exhaust air channel arranged in the shell 10, wherein the shell 10 is provided with the air inlet 1212 and the air outlet 1211 which are communicated with the purification air channel, so that most of the oil smoke generated by cooking is exhausted to the outside of a kitchen through the smoke exhaust air channel in the use process of the range hood, and a small part of the oil smoke escaping to the kitchen environment can be purified under the action of the purification component 20, meanwhile, the air outlet 1211 communicated with the purification air channel is arranged on the top wall 121 of the fan cover 11, and the air purified by the purification component 20 is blown upwards, so that the escaping oil smoke upwards surges in the use process of the range hood and can be diluted by the upwards blown clean air flow when being gathered at the top position of the indoor environment such as the kitchen, on the other hand under the impact of the clean air current that blows out upwards, the oil smoke of gathering at the top in kitchen will accelerate to flow, and circulate downwards along the inner wall in kitchen and finally inhale by the smoke absorption mouth of the range hood that sets up in the below again, and discharge outdoor by the wind channel of discharging fume, the indoor air circumstance in kitchen will greatly improve like this, and to the culinary art person who is in the kitchen environment, the inhaled oil smoke volume also will greatly reduce, thereby can promote human health, furthermore, this application sets up the smoke absorption mouth on diapire 122, and be located the below of casing 10, be favorable to in the use, utilize the ascending characteristic of oil smoke, make the oil smoke be convenient for directly get into in the purification wind channel by filtration purification, thereby promote purifying effect.

In an embodiment, the fume collecting hood 12 is provided with a purifying assembly 20 on each of the left and right sides, and the top wall 121 of the fume collecting hood 12 is provided with an air outlet 1211 corresponding to the purifying assembly 20 on each of the left and right sides, the number of the air inlets 1212 and the number of the air outlets 1211 correspond, and the fan cover 11 is located between the two air outlets 1211. That is, the range hood of this application is at the operation in-process, the air that is located the range hood left and right sides, under the drive of purification subassembly 20, the homoenergetic gets into by an air intake 1212, and purify the back through purification subassembly 20, blow off by an air outlet 1211 again, this is because in the in-service use in-process, the quantity that lies in range hood below top of a kitchen range generally is two, then the range hood of this application can adsorb the filtration through a respective purification wind channel of its left and right sides to the produced and oil smoke that escapes of the top of a kitchen that corresponds, then discharge the indoor environment in kitchen into again, under the condition that two kitchen range are all used like this, can reduce the volume of oil smoke in escaping the kitchen environment, and then reduce the volume of the human body suction oil smoke in the kitchen environment. Of course, under the condition of a cooking range, the present application can also increase the purification power and accelerate the removal of the oil smoke when two purification assemblies 20 are provided. This application still because set up two independent purification unit 20 simultaneously, also be convenient for in daily use, for example only open under the condition of a kitchen range, can conveniently carry out independent control respectively, it is comparatively convenient to use.

The above description describes that the range hood has the fan cover 11 disposed between the two purifying air ducts, the smoke exhaust air duct in the range hood plays a main role in the smoke removing process, and the purifying air duct plays an auxiliary role, so the present application also reasonably arranges the smoke exhaust ports to realize reasonable power distribution in the smoke removing process, wherein the smoke exhaust ports include the upper smoke exhaust port 1222 located at the upper part of the smoke collecting hood 12 and the lower smoke exhaust port 1221 located at the lower part of the smoke collecting hood 12, the upper smoke exhaust port 1222 is located between the two air inlets 1212, during the use of the range hood, the lower smoke exhaust port 1221 is closer to the cooking bench, most of the smoke exhaust enters the smoke collecting hood 12 through the lower smoke exhaust port 1221 and is discharged outside through the fan cover 11, while a small amount of the smoke exhaust is sucked into the smoke collecting hood 12 again through the upper smoke exhaust port 1222, and the outward escaping smoke exhaust can be sucked into the air inlets 1212, such oil smoke distribution mode can also avoid the condition that purification subassembly 20 overload work leads to its life-span to shorten under the condition of effectively reducing the oil smoke in the kitchen environment.

Further, in order to realize that the lower smoke exhaust 1221 can be as close to the kitchen range as possible to adsorb the oil smoke with high efficiency, the whole lower part of the fume collecting hood 12 is pointed, the upper part is thicker, and the bottom wall 122 of the fume collecting hood 12 inclines from top to bottom towards the rear side of the fume collecting hood 12, so that the fume collecting hood 12 is arranged to provide more space above the kitchen range for the kitchen range, so that more cooking operation space can be provided for an operator in the cooking process, and the lower smoke exhaust 1221 can be as close to the kitchen range as possible, and the smoke removal efficiency can be improved. Specifically, the bottom wall 122 inclines to the rear side, and under the condition that the bottom wall 122 is formed by splicing a plurality of plate bodies, the adjacent plate bodies are arranged at included angles to realize the inclination to the rear side, or the bottom wall 122 is integrally arc-shaped to arch to the rear side to form a structure inclined to the rear side. The smoke collecting hood 12 of the present application includes, in addition to the top wall 121 and the bottom wall 122 described above, side walls 123 disposed on the left and right sides, a rear wall 124 disposed on the rear side, and a front wall 125 disposed on the front side, the rear wall 124 and the front wall 125 are respectively connected to the front and rear sides of the top wall 121, the two side walls 123 are respectively connected to the left and right sides of the top wall 121, and the front and rear sides of the side walls 123 are respectively connected to the bottom wall 122 and the rear wall 124, wherein the bottom wall 122 is inclined downward toward the rear side, the size of the side walls 123 is reduced from top to bottom, and then the smoke collecting hood 12 integrally constitutes a structure with a larger size at the upper portion and a smaller size at the lower portion. The lower smoking opening 1221 is formed by the bottom wall 122 and the rear wall 124, and has a wide extension range, so as to effectively absorb the oil smoke generated in the range of two cooking ranges, while the upper smoking opening 1222 is formed at the upper part of the bottom wall 122, and in one structure, the upper smoking opening 1222 is formed by a plurality of hole structures.

In the application, an oil receiving box 30 is further installed at the bottom of the smoke collecting hood 12, the oil receiving box 30 may be detachably connected to the smoke collecting hood 12, in some embodiments, a clamping groove may be provided at the bottom of the smoke collecting hood 12, and a protrusion is provided on the oil receiving box 30, and the oil receiving box 30 may be clamped by matching the protrusion and the clamping groove, or may be clamped by a screw connection, or the oil receiving box 30 may be connected to the smoke collecting hood 12 in an inverted manner, wherein preferably, the oil receiving box 30 and the smoke collecting hood 12 are detachably connected, which facilitates cleaning, further, in order to condense and separate out the smoke oil in the smoke, a condensing plate 129 is further installed in the smoke collecting hood 12, wherein the condensing plate 129 is installed in the lower smoke suction opening 1221 and is disposed in an inclined manner, the bottom of the condensing plate 129 extends into the oil receiving box 30, and the condensing plate 129 is made of metal, the condensed tobacco tar can thus be guided directly into the oil receiving box 30.

The above description describes the layout of the purifying air duct on the fume collecting hood 12, and the following description specifically describes the structural form of the purifying assembly 20 constituting the purifying air duct.

Referring to fig. 6 to 8, in some embodiments, the purifying assembly 20 includes an air duct 22, a fan 21 and a filter 23 disposed between the air inlet 1212 and the air outlet 1211, the air duct 22 is connected to the smoke collecting hood 12 and has a lower air inlet and an upper air outlet, the lower air inlet is communicated with the air inlet 1212, the upper air outlet is communicated with the air outlet 1211, and the fan 21 and the filter 23 are disposed in the air duct 22.

The central axis direction of the air duct 22 is the up-down direction, so that the purifying air duct is arranged along the up-down direction of the fume collecting hood 12. In some embodiments, the air duct 22 may be made of plastic or metal, the cross-sectional shape of the air duct 22 may be square, circular or other shapes, in an exemplary scheme in the drawings, the cross-sectional shape of the air duct 22 is square, and includes four wall plates that are spliced end to form a cylinder shape with openings at upper and lower ends, the upper end of the air duct 22 is connected to the top wall 121 of the smoke collecting hood 12, the lower end of the air duct 22 is connected to the bottom wall 122 of the smoke collecting hood 12, specifically, the upper and lower ends of the air duct 22 may be provided with connecting lugs, the connecting lugs are provided with connecting holes, the top wall 121 and the bottom wall 122 may be provided with connecting posts with screw holes, and the air duct 22 is fixedly mounted on the smoke collecting hood 12 by matching of screws with the connecting holes and the connecting posts, it can be understood that the air duct 22 may also be fixedly mounted on the smoke collecting hood 12 by, for example, a snap connection with the smoke collecting hood 12, The detachable fixed connection mode with collection petticoat pipe 12 is formed such as pin connection, or air duct 22 and collection petticoat pipe 12 can also be through non-detachable fixed connection mode such as welding, and based on the convenience of maintaining, preferred air duct 22 of this application and collection petticoat pipe 12 are detachable connection mode. From the above, it can be understood that the hood 12 has a larger upper space and a smaller lower space so as not to interfere with the cooking operator, and the duct 22 of the present application is also shaped to match the shape of the inner space of the hood 12, and since the bottom wall 122 of the hood 12 is inclined from top to bottom toward the rear side, correspondingly, the bottom end surface of the duct 22 is also extended from top to bottom toward the rear side to form a conical surface configuration.

This application passes through the setting of air duct 22, it forms the purification wind channel to inject, set up fan 21 in air duct 22, wherein fan 21 includes motor and wind wheel, fan 21 can select for example axial fan, wherein axial fan's axis direction is upper and lower direction, fan 21 can also select for example centrifugal fan etc., under the setting condition of air duct 22, this application prefers centrifugal fan in order to promote air-out efficiency, that is, through the setting of air duct 22, it purifies the wind channel to inject through simple structure, in addition, the suction of air current in the filtering process can be increased through the drainage effect of air duct 22, also be in addition because the drainage effect of air duct 22, make the kind that fan 21 can select increase, the commonality of this application scheme has been improved. Further, in order to facilitate the installation of the fan 21, the installation support 128 is installed at the air outlet 1211 on the top wall 121 of the present application, wherein the installation support 128 is of a hollow structure in the middle, and may be installed and fixed on the top wall 121 of the smoke collection hood 12 through a screw connection, or the installation support 128 may be fixedly connected with the top wall of the smoke collection hood 12, and the motor in the fan 21 is hung on the installation support 128.

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 partial decomposition products 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 (Particulate Matter Emissions) consisting of liquid and solid in the soot emission is abbreviated as PME, and the Volatile Organic Compounds emission (Volatile Organic Compounds Emissions) is abbreviated as VOCs. The oil smoke is composed of the above two substances, wherein the VOCs can be regarded as the smell of the oil smoke. In order to realize carrying out effective filtration with the oil smoke and getting rid of, the filter 23 of this application can adopt for example the HEPA filter screen, the material of HEPA filter screen can include PP filter paper (polypropylene filter paper), glass fiber, PTFE filter paper (polytetrafluoroethylene filter paper), nanofiber, melt-blown polyester non-woven fabrics etc., it is big to have the dust holding capacity, the characteristics that filter fineness is high, the filtration efficiency to oil smoke particulate matter can exceed 90%, and can process into required size and shape according to the model needs, or filter 23 can contain HEPA filter screen and active carbon filter screen simultaneously, optionally, its HEPA filter screen and active carbon filter screen are usually produced into a module. It is to be understood that the specific configuration of the filter member 23 may be adjusted as necessary, and for example, other sterilization devices, photolysis devices, or the like may be provided in the filter member 23.

In some embodiments, the filter element 23 of the present application can be extracted from the air duct 22 and the fume collection hood 12. With such an arrangement, after long-term use, the filter element 23 can be conveniently replaced, and further the purifying and filtering effect can be ensured, referring to fig. 4, 7 and 8, in some embodiments, the exhaust fume collecting hood 12 is provided with the dismounting and mounting port 1231 on the side wall 123, the side of the air duct 22 facing the side wall 123 is provided with the mounting port 221 correspondingly communicated with the dismounting and mounting port 1231, and the filter element 23 can be sequentially extracted from the mounting port 221 and the dismounting and mounting port 1231. It is understood from the above description that, in some embodiments, the range hood of the present application is provided with one purifying assembly 20 on each of the left and right sides of the smoke collecting hood 12, and then for the purifying assembly 20 located on the right side, the right side wall plate of the air guiding cylinder 22 is provided with the mounting port 1231, and correspondingly, the left side wall plate of the air guiding cylinder 22 in the purifying assembly 20 located on the left side is provided with the mounting port 1231, that is, after long-time use, the present application scheme can draw out the filtering member 23 from the side portion of the smoke collecting hood 12, and in the case of providing two purifying assemblies 20, the respective filtering member 23 can be drawn out respectively, so that the arrangement can be selected to be drawn out according to the use condition of the respective filtering member 23, so that the use is more flexible, and the operation is convenient. Further, a support member 222 extending from the mounting opening 221 to the inside of the air guiding barrel 22 is further connected inside the air guiding barrel 22, the filter member 23 is mounted on the support member 222, wherein the support member 222 is connected to the inner walls of both sides of the opening of the mounting opening 221, in an embodiment, the support member 222 is a rib structure protruding from the inner wall of the air guiding barrel 22, during the mounting process, the bottom of the filter member 23 can be carried on the support member 222 and slide into the air guiding barrel 22 along the support member 222, and during the removal process, the filter member can slide out of the mounting opening 221 along the support member 222, so that the drawing operation is convenient, in some embodiments, the support member 222 and the air guiding barrel 22 can be an integral structure, for example, the support member 222 and the air guiding barrel 22 are integrally formed by die casting using a metal material, or integrally formed by injection molding using a plastic material, or the support member 222 and the air guiding barrel 22 can also be fixedly connected together by welding, of course, the supporting member 222 and the air duct 22 can be detachably connected together in a clamping or plugging manner.

Further, in order to facilitate the overall extraction of the filter element 23 from the air duct 22 and the smoke collecting hood 12, the filter element 23 of the present application may include two parts, namely a filter element mounting box and a filter element, the filter element is integrally mounted in the filter element mounting box, and the filter element may adopt the structural form exemplified in the above, such as an HEPA filter screen.

Further, the side wall 123 of the present application is provided with a filter door body 126 capable of opening or closing the attachment/detachment port 1231. As a preferred embodiment, in order to facilitate the opening of the filter door body 126, a pressing type snap switch assembly may be disposed on the filter door body 126, wherein the pressing type snap switch assembly generally includes a self-locking switch disposed at the dismounting opening 1231, and a snap portion disposed on the filter door body 126 and engaged with the self-locking switch. When the filter element door body 126 is in an open state, rotating the filter element door body 126 to a position where the second side is close to the disassembly and assembly port 1231, then pressing the filter element door body 126 until the buckling part enters the self-locking switch, so that the self-locking switch locks the buckling part, and the filter element door body 126 and the purification shell 21 can be fixed; then, when the filter door body 126 is pressed again, the self-locking switch releases the fastening part, so that the filter door body 126 can be rotated and opened relative to the disassembly and assembly port 1231. This application passes through the rotation connected mode of filter 23 door body 126 and lateral wall 123, can be in the use, need not to consider the locating position of filter door body 126, and it is more convenient so to use, can understand, and in other embodiments, filter door body 126 also can be with collection petticoat pipe 12 be separable setting. This application can also be with filtering the better spacing of piece 23 in collection petticoat pipe 12 under the condition of filtering the piece 23 condition of being convenient for to take out through the setting of filtering a door body 126 on the one hand to prevent to use or the handling at range hood, filter the condition that drops out and appear in piece 23, on the other hand, filter a door body 126 and can prevent that the foreign matter from entering into in the range hood through dismouting mouth 1231 department.

In some embodiments, the range hood of the present application further includes a protective net 127 mounted at the air outlet 1211, the protective net 127 is in a grid shape, as a preferred connection manner, the protective net 127 is detachably connected to the top wall 121 of the smoke collecting hood 12, specifically, the protective net 127 has a basic frame member supporting the whole structure thereof, and a rib structure poorly disposed in the middle of the frame member, the rib structure disposed in a crossing manner forms a plurality of ventilation holes, so that the purified air flow can pass through the protective net 127 under a small wind resistance, a through hole can be disposed on the frame member of the protective net 127, a connection hole is disposed at an edge position of the top wall 121 of the smoke collecting hood 12 corresponding to the air outlet 1211, the protective net 127 can be screwed to the smoke collecting hood 12 by means of a screw matching with the through hole and the connection hole, in other embodiments, a buckle can be further disposed on the frame member of the protective net 127, the protective net 127 and the smoke collecting hood 12 are detachably fixed in a buckle connection mode, and also can be detachably connected and fixed in a magnetic suction mode, of course, the protective net 127 and the smoke collecting hood 12 can also be in a non-detachable fixed connection mode, so as to prevent the smoke collecting hood from falling off in the operation process of the range hood due to shaking, wherein the non-detachable fixed connection mode can be in a welded connection mode, for example, because the air outlet 1211 is formed in the top wall 121, the scheme of the application can effectively avoid the situation that foreign matters fall into the purification air duct due to the fact that the foreign matters fall, and under the condition that the fan 21 adopts the axial flow fan, the protective net 127 can also effectively protect, prevent hands from accidentally extending into the purification air duct, and cause the situation that blades of the fan 21 scratch.

The smoke exhaust fan in the smoke exhaust duct and the fan 21 in the purification assembly 20 can be connected to the same controller, that is, the smoke exhaust duct and the purification duct are controlled by the same controller; the controller is usually disposed on the fan hood, but the controller may also be disposed on the fume collecting hood 12, and in other embodiments, the range hood may also be disposed with two different controllers to control the fans in the smoke exhaust fan and the purifying assembly 20, respectively.

Optionally, the smoke exhaust fan and the fan 21 in the purification assembly 20 share one control switch, so that when the smoke exhaust fan is turned on through the control switch to work, the purification assembly 20 is automatically turned on to work at the same time, that is, the cooperative work of turning on the smoke exhaust fan and the purification assembly 20 by one key can be realized. The control switch is usually electrically connected to the controller to control the on/off of the engine. When one control switch is shared, the control switch is usually provided on the smoke-collecting hood 12.

However, the design is not limited to this, in other embodiments, the smoke exhaust fan and the purification assembly 20 may also use different control switches respectively, so as to implement independent on/off control of the smoke exhaust fan and the purification assembly 20, so that a user may use the respective functions of the smoke exhaust fan and the purification assembly 20 more flexibly. When different control switches are used respectively, the two control switches can be both arranged on the fume collecting hood 12; typically, the hood 12 will be provided with a control panel on the front which is typically integrated into the control panel when the exhaust fan and the cleaning assembly 20 share a control switch, i.e. the control switch is located on the front of the hood 12 which may be more convenient for the user to operate.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A range hood, comprising:

2. The range hood of claim 1 wherein the housing includes a fan guard and a smoke collection cage, the smoke collection cage being attached to a bottom of the fan guard, the exhaust duct extending from the smoke collection cage to the fan guard, the purification assembly being disposed within the smoke collection cage, the air outlet being disposed in a top wall of the smoke collection cage, and the air inlet being located in a bottom wall of the smoke collection cage disposed opposite the top wall.

3. The range hood according to claim 2, wherein the left and right sides of the smoke collecting hood are respectively provided with one of the purifying assemblies, the left and right sides of the top wall of the smoke collecting hood are respectively provided with an air outlet corresponding to one of the purifying assemblies, the number of the air inlets corresponds to that of the air outlets, and the fan cover is located between the two air outlets.

4. The range hood according to claim 3 wherein said smoke exhaust port comprises an upper smoke exhaust port located at an upper portion of said smoke collection hood and a lower smoke exhaust port located at a lower portion of said smoke collection hood, said upper smoke exhaust port being located between said air intakes.

5. The range hood of claim 2 wherein the bottom wall slopes from top to bottom toward the rear side of the fume collection hood.

6. The range hood according to claim 2, wherein the oil receiving box is installed at the bottom of the fume collecting hood.

7. The range hood according to any one of claims 2 to 6, wherein the cleaning assembly comprises an air duct, a fan and a filter element disposed between the air inlet and the air outlet, the air duct is connected to the hood and has a lower air inlet and an upper air outlet, the lower air inlet is communicated with the air inlet, the upper air outlet is communicated with the air outlet, and the fan and the filter element are disposed in the air duct.

8. The range hood of claim 7 wherein the filter member is extractable from the air duct and the fume collection hood.

9. The range hood according to claim 8, wherein the smoke collecting hood further includes side walls connected to left and right sides of the top wall, the side walls are provided with disassembly and assembly ports, one side of the air duct facing the side walls is provided with an installation port correspondingly communicated with the disassembly and assembly ports, and the filter element can be sequentially extracted from the installation port and the disassembly and assembly ports.

10. The range hood of claim 9 wherein a support member is further coupled to the air guide duct and extends from the mounting opening into the air guide duct, and the filter member is mounted to the support member.

11. The range hood of claim 9, wherein the side wall is provided with a filter door body capable of opening or closing the disassembly and assembly opening.

12. The range hood of claim 7 wherein the fan is an axial fan.

13. The range hood of claim 7, wherein a mounting bracket is mounted on the top wall at the air outlet, and the fan is suspended from the mounting bracket.

14. The range hood of claim 7, wherein a protective screen is installed at the air outlet.