CN111735091A

CN111735091A - Smoke exhaust ventilator

Info

Publication number: CN111735091A
Application number: CN202010644609.8A
Authority: CN
Inventors: 刘智; 梁泽锋; 杨涛; 曲绍鹤; 李忠华
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-10-02
Also published as: WO2022007250A1

Abstract

The invention discloses a range hood, comprising: a cigarette machine main body; and air purification device, including establishing the cigarette owner external purification shell and establishing filter piece and purification fan in the purification shell, the purification shell is equipped with air intake and air outlet, filter the piece with purification fan all locates the air intake with between the air outlet, purification shell can dismantle connect in the cigarette owner body. The technical scheme of the invention can further reduce the pollution of the oil smoke to the air environment and the damage to the health of the human body, and is convenient to install and maintain.

Description

Smoke exhaust ventilator

Technical Field

The invention relates to the technical field of household 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.

Disclosure of Invention

The invention mainly aims to provide a range hood, which aims to further reduce the pollution of oil smoke to the air environment and the damage to the health of a human body and is convenient to install and maintain.

In order to achieve the above object, the range hood provided by the present invention comprises:

a cigarette machine main body; and

air purification device, air purification device is including establishing cigarette owner external purification shell and establishing filter piece and purification fan in the purification shell, the purification shell is equipped with air intake and air outlet, filter piece with purification fan all locates the air intake with between the air outlet, purification shell can dismantle connect in the cigarette machine main part.

On the one hand, through the cooperative work of air purification device and cigarette machine main part, can discharge most the oil smoke outdoor, the circulation of the small part is purified and is got rid of to further reduce the pollution of oil smoke to air environment and the harm to human health. On the other hand purifies shell and can dismantle with the cigarette machine main part and be connected the setting to make air purification device whole can dismantle with the cigarette machine main part and be connected, so set up the assembly that can make things convenient for air purification device and cigarette machine main part, realize modular assembly, and the convenience transports the two alone in the transportation. And when one of the cigarette machine main body and the air purification device is damaged, the cigarette machine main body and the air purification device can be detached and repaired independently, so that the maintenance cost is reduced.

Optionally, the cigarette machine main part includes the fan cover with locate the collection petticoat pipe of fan cover below, the purification shell can dismantle connect in collection petticoat pipe.

Therefore, the main body and the purification shell of the cigarette machine can be conveniently disassembled.

Optionally, one of them of collection petticoat pipe with purification shell is equipped with the inserting groove, collection petticoat pipe with another of them of purification shell is equipped with the plug pin, the plug pin can dismantle peg graft in the inserting groove.

Therefore, the cigarette machine main body and the purification shell can be conveniently spliced and matched.

Optionally, one of the fume collecting hood and the purifying shell is provided with a first magnetic part, and the other of the fume collecting hood and the purifying shell is provided with a second magnetic part, and the first magnetic part and the second magnetic part are magnetically adsorbed.

Therefore, the magnetic attraction matching of the cigarette machine main body and the purifying shell can be facilitated.

Optionally, the collection petticoat pipe with one of them of purifying housing is equipped with the inserting groove, the collection petticoat pipe with another of wherein of purifying housing is equipped with the plug pin, the plug pin is equipped with first magnetic part, be equipped with second magnetic part in the inserting groove, the plug pin can be dismantled peg graft in during the inserting groove, first magnetic part with second magnetic part magnetic adsorption.

Therefore, the insertion and magnetic attraction of the cigarette machine main body and the purification shell can be conveniently matched.

Optionally, the cigarette machine main body is provided with a first electrical contact, the air purification device is provided with a second electrical contact, and when the air purification device is connected to the cigarette machine main body, the first electrical contact is electrically connected with the second electrical contact.

Therefore, the circuit of the cigarette machine main body and the air purification device can be conveniently conducted.

Optionally, the purifying housing is arranged on the upper surface of the fume collecting hood and is positioned on the front surface of the fan hood;

or the purifying shell is arranged on the upper surface of the fume collecting hood and is positioned on the side surface of the fan hood;

or the purifying shell is arranged on the upper surface of the smoke collecting hood and is positioned at the corner between the side surface and the front surface of the fan hood.

So, set up in each position, consider the convenience of installation region and air-out angle.

Optionally, a shock absorption pad is arranged between the purifying shell and the smoke collecting hood;

and/or a buffer pad is arranged between the purification shell and the fan cover.

Therefore, the interference between the cigarette machine main body and the air purification device can be reduced.

Optionally, the purification shell is provided with a filter mounting port through which the filter element is detachably mounted in the purification shell.

Thus, the filter element can be conveniently detached, cleaned or replaced.

Optionally, the filter element is drawably disposed at the filter element mounting opening.

Thus, the filter elements can be more conveniently detached, cleaned or replaced in a drawing mode

According to the technical scheme, on one hand, the air purification device is arranged on the cigarette machine main body, so that most of oil smoke generated in the cooking process is discharged to the outside through the oil smoke suction air duct in the cigarette machine main body, a small part of oil smoke can escape to other spaces in a kitchen when the air purification device and the cigarette machine main body work cooperatively, and the small part of oil smoke can be further removed through the purification air duct in the air purification device, so that the pollution of the oil smoke to the air environment and the damage to the health of a human body are further reduced.

On the other hand purifies shell and can dismantle with the cigarette machine main part and be connected the setting to make air purification device whole can dismantle with the cigarette machine main part and be connected, so set up the assembly that can make things convenient for air purification device and cigarette machine main part, realize modular assembly, and the convenience transports the two alone in the transportation. And when one of the cigarette machine main body and the air purification device is damaged, the cigarette machine main body and the air purification device can be detached and repaired independently, so that the maintenance cost is reduced.

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 structural diagram of a range hood according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the range hood of FIG. 1 without the air cleaning device being mounted to the body of the range hood;

fig. 3 is an exploded schematic view of the air cleaning device of the range hood of fig. 1;

FIG. 4 is a schematic cross-sectional view of the range hood of FIG. 1;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

FIG. 6 is an enlarged view of the structure at B in FIG. 4;

fig. 7 is a schematic view of an air circulation path of the air cleaning device of the range hood in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Cigarette machine main body	11	Fan cover
12	Exhaust fume collecting hood	2	Air purifying device
				121	Plug-in groove	122	Second magnetic part
21	Purifying shell	21a	Air inlet
				211	Plug-in pin	212	First magnetic part
21b	Air outlet		210					Filter element mounting port
				22	Filter element	221	HEPA filter screen
222	Active carbon filter screen	23	Purifying fan
				24	Air inlet grille	25	Air outlet grille
220	Mounting groove	220a	Mounting through opening
				27	Purifying air duct shell	271	Air duct inlet
272	Air duct outlet	26	Filter cover
				251	Wind-guiding grid	28	Filter element mounting box
281	Guide rail	3	Controller
				4	Control switch

The objects, features and advantages 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 if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment 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 the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. 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 invention provides a range hood.

Referring to fig. 1 and 2, in an embodiment of the present invention, the range hood includes a range hood body 1, and an air cleaning device 2 disposed outside the range hood body 1. Wherein:

the range hood main body 1 is provided with an oil fume suction duct, the smoke inlet of the oil fume suction duct is communicated with the indoor and is usually suspended above a kitchen range so as to suck oil fume into the oil fume suction duct; the smoke outlet of the oil smoke suction duct is communicated with the outside so as to discharge oil smoke to the outside; of course, the cigarette machine body 1 is further provided with a smoke exhaust fan for making the airflow flow from the smoke inlet to the smoke outlet. It can be understood that the range hood main body 1 has the functions of the traditional range hood.

The air purifying device 2 comprises a purifying shell 21 arranged outside the cigarette machine body 1, and a filtering piece 22 and a purifying fan 23 arranged in the purifying shell 21, wherein the purifying shell 21 is provided with an air inlet 21a and an air outlet 21b, and the filtering piece 22 and the purifying fan 23 are both arranged between the air inlet 21a and the air outlet 21 b. It can be understood that a purifying air duct is formed in the purifying housing 21, and the purifying air duct and the oil smoke suction duct are independent from each other. The cleaning fan 23 is used to make the air flow from the air inlet 21a to the air outlet 21 b. The air inlet 21a and the air outlet 21b are communicated with each other indoors, the air inlet 21a is used for sucking air in a kitchen, the filter 22 is used for filtering and purifying the sucked air, and the air outlet 21b is used for discharging the filtered and purified air back to the kitchen indoors. When the air purification device 2 and the cigarette machine main body 1 work cooperatively, most of oil smoke generated in the cooking process is discharged to the outside through the oil smoke suction air duct in the cigarette machine main body 1, a small part of oil smoke can escape to other spaces in a kitchen, and the small part of oil smoke can be further removed through the purification air duct in the air purification device 2, so that the pollution of the oil smoke to the air environment and the damage to the health of a human body are further reduced.

Further can dismantle the connection in cigarette machine main part 1 with purifying housing 21 to make air purification device 2 whole can dismantle with cigarette machine main part 1 and be connected, so set up can make things convenient for air purification device 2 and cigarette machine main part 1's assembly, realize modular assembly, and the convenience transports the two alone in the transportation. In addition, when one of the cigarette machine main body 1 and the air purification device 2 is damaged, the cigarette machine main body can be detached and repaired independently, and the maintenance cost is reduced.

Referring to fig. 1 and 2, in one embodiment, the range hood body 1 includes a fan guard 11 and a smoke collection hood 12 disposed below the fan guard 11, and a purification shell 21 is disposed above the smoke collection hood 12 and detachably connected to the smoke collection hood.

In this embodiment, the smoke inlet of the range hood main body 1 is disposed below the smoke collecting hood 12. The oil smoke below the smoke collecting hood 12 is mainly sucked by the smoke inlet, that is, is mainly discharged to the outside by the oil smoke suction duct. The oil smoke escaping upwards from the edge of the smoke-collecting hood 12 is mainly sucked and processed by the air inlet 21a of the purifying shell 21.

Through connecting purification shell 21 can dismantle in collection petticoat pipe 12 to make collection petticoat pipe 12 be the main bearing part, because collection petticoat pipe 12 is located the below of fan casing 11, consequently can make things convenient for the holistic assembly of air purification device 2.

When the purifying housing 21 is detachably connected to the smoke collecting hood 12, it can be mounted on the smoke machine main body 1 in various ways, for example, by using one or more of detachable structures such as a screw locking structure, a snap structure, and the like, so as to facilitate the maintenance and the disassembly of the air purifying device 2.

Referring to fig. 2 to 6 in combination, in an embodiment of the present application, the purification housing 21 is installed by providing one of the fume collecting hood 12 and the purification housing 21 with a socket 121, and providing the other of the fume collecting hood 12 and the purification housing 21 with a socket 211, wherein the socket 211 is detachably inserted into the socket 121. The arrangement of the plug pins 211 and the plug grooves 121 is simple. Which forms a plug groove 121 which may be annular and a plug foot 211 which is annular. Also can be cylindrical plug pin 211 and the inserting groove 121 that corresponds the setting, its quantity can be a plurality of, is the interval and evenly arranges to make the installation more stable. One can be provided, thereby simplifying the opposite insertion structure. The plug-in pins 211 can be arranged at the bottom of the purifying housing 21 or at the side, depending on the installation position of the purifying housing 21 and the fume collecting hood 12.

Furthermore, a magnetic adsorption mode can be arranged to further enable the connection between the two to be more stable. For example, in one embodiment, one of the fume collecting hood 12 and the purifying housing 21 is provided with a first magnetic member 212, the other of the fume collecting hood 12 and the purifying housing 21 is provided with a second magnetic member 122, and the first magnetic member 212 and the second magnetic member are magnetically attracted. The mutual connection and installation of the smoke collecting hood 12 and the purification housing 21 are more stable by the magnetic adsorption of the first magnetic member 212 and the second magnetic member 122. Of course, the shape and position of the first and second

magnetic members

212 and 122 may be set as desired. For example, the first magnetic member 212 may be provided at the bottom of the purifying housing 21 and the second magnetic member 122 may be provided at the upper surface of the smoke collecting hood 12, thereby completing the magnetic docking installation.

Of course, the magnetic adsorption and the inserting and fixing manner can also be used in combination, in an embodiment, one of the smoke collecting hood 12 and the purifying housing 21 is provided with an inserting and connecting groove 121, the other of the smoke collecting hood 12 and the purifying housing 21 is provided with an inserting and connecting pin 211, the inserting and connecting pin 211 is provided with a first magnetic piece 212, the inserting and connecting groove 121 is provided with a second magnetic piece 122, and when the inserting and connecting pin 211 is detachably inserted and connected in the inserting and connecting groove 121, the first magnetic piece 212 and the second magnetic piece 122 are magnetically adsorbed. That is, the connection between the two can be more stable through the first mutual insertion and the magnetic attraction.

As described in the above embodiment, when the purifying housing 21 is provided to the hood 12, the above-described various connecting structures may be provided at the bottom of the purifying housing 21, and correspondingly, when mounting, the purifying housing 21 may be provided to the upper surface of the hood 12, thereby enabling both to be stably mounted.

In setting a particular orientation of the upper surface of the fume collecting hood 12, with combined reference to fig. 1 and 5, an embodiment may provide the clean housing 21 on the front side of the fan guard 11. By arranging the clean housing 21 on the front of the fan guard 11 so that it is a short distance from the user, the user can be enabled to breathe fresh air directly. Can combine the air outlet that openly set up to set up, the air-out is effectual.

In one embodiment, the purge housing 21 may be located on the side of the fan guard 11. The position with the strongest suction force is generally arranged right below the cigarette machine main body 1, and the purification shell 21 is arranged on the side surface, so that the lampblack escaping to the upper part of the air purification device 2 can be sucked and purified.

In one embodiment, the purge housing 21 may be located at a corner between the side and front of the fan guard 11. The purifying shell 21 is placed at the corner, the position of the corner is larger, the placing space is more sufficient, and the disassembling and the assembling of the purifying shell 21 are more convenient.

The air purification device 2 and the cigarette machine main body 1 are both provided with independent air ducts and fans, and in order to reduce the mutual vibration influence of the air purification device 2 and the cigarette machine main body 1 in work, in one embodiment, the air purification device and the cigarette machine main body 1 can be arranged as follows: a damper pad (not shown) is provided between the purifying housing 21 and the hood 12. The exhaust fume collecting hood 12 is a main bearing component, and a shock absorption pad is arranged between the purifying shell 21 and the exhaust fume collecting hood 12, so that the mutual interference influence of the purifying shell and the exhaust fume collecting hood during working can be reduced. A cushion is provided between the clean case 21 and the fan cover 11. A cushion (not shown) is further provided between the purge case 21 and the fan cover 11, and the mutual interference between the two during operation can be further reduced. The shock pad and the cushion pad can be soft materials such as rubber pads or silica gel pads. When the shock absorption pad and the buffer pad are arranged, the shock absorption pad and the buffer pad can be combined for use, and can also be used independently.

Referring to fig. 1 and 7, in an embodiment, the air outlet 21b is disposed on a front surface of the purifying housing 21; thus, after the air purification device 2 is opened, the air purification device 2 blows air forward or at least has a forward air-out component. In the cooking process, a user usually stands in front of the range hood, and the space in front of the range hood can be defined as a user breathing zone. It can be understood that the forward air outlet is favorable for conveying the purified air to the user breathing area, thereby being favorable for improving the air quality of the user breathing area, further reducing the probability of the user sucking the oil smoke, and reducing the harm of the oil smoke to the health of the user.

However, the design is not limited thereto, and in other embodiments, the air outlet 21b may also be disposed on the top surface of the purifying housing 21, so that the air purifying device 2 blows air upwards or at least has an upward air flow component after the air purifying device 2 is opened. It can be understood that, due to the effect of the thermal plume in the cooking process, the oil smoke tends to gather in the upper half portion of the kitchen space, and the upward air outlet is beneficial to blowing the purified air to the upper half portion of the kitchen space, so that the oil smoke in the upper half portion of the kitchen space flows downward under the pushing of the upward blown purified air by the purified air, and is sucked and purified by the air inlet 21a of the air purification device 2, thereby realizing the air circulation purification in the kitchen, and further reducing the oil smoke in the kitchen.

Optionally, the air outlet direction of the air outlet 21b is adjustable, so that the air outlet 21b arranged on the front surface of the purifying housing 21 can meet more air outlet requirements of the user on the air purifying device 2 by changing the air outlet direction, for example, the requirements of users with different heights for direct blowing or non-direct blowing are met.

Referring to fig. 2 to 4, optionally, the air outlet 21b is provided with an air outlet grille 25 to prevent foreign matters from protruding into the purifying housing 21 from the air outlet 21 b. Further optionally, the air outlet grille 25 includes a rotatable air guiding bar 251, so that the air outlet direction of the air outlet 21b is adjusted by rotating the air guiding bar 251, and the air outlet direction of the air outlet 21b is continuously adjustable. However, the design is not limited thereto, in other embodiments, a plurality of air outlet grills 25 fixedly provided with the air guiding grills 251 may be configured, and the inclination angles between the air guiding grills 251 and the vertical surface of different air outlet grills 25 are different, and the air outlet grille 25 having the air guiding grills 251 with the corresponding inclination angles is selected to be installed on the air outlet 21b according to the requirement of the air outlet direction, so that the air outlet direction of the air outlet 21b can be changed by replacing different air outlet grills 25; in addition, optionally, the air outlet grille 25 further includes a grille frame, and the air guiding grills 251 are connected to the grille frame, and the grille frame is usually detachably connected to the air outlet 21b, and can be mounted on the air outlet 21b by using one or more detachable structures, such as screw locking structures, snap fastening structures, and the like, but not limited thereto.

For the air outlet 21b arranged on the front surface of the purifying housing 21, in an embodiment, an adjustable inclination angle with a downward opening is formed between the air outlet direction of the air outlet 21b and a vertical surface, the adjustable inclination angle is not less than 30 degrees and is not more than 150 degrees, so that the air outlet direction of the air outlet 21b has a large adjustment range, and the requirements of more working conditions can be met. It should be noted that, when the adjustable inclination angle is smaller than 90 °, the air outlet 21b is inclined downward to discharge air, which is beneficial to improving the air quality in the breathing zone of the user. When the adjustable inclination angle is greater than 90 °, the air outlet 21b is inclined upward to discharge air, so that the air outlet 21b has an upward air discharge component, and the upward air discharge component can push the oil smoke in the upper half part of the kitchen space to flow downward, and the oil smoke is sucked and purified by the air inlet 21a of the air purification device 2, so that the oil smoke in the upper half part of the kitchen space is brought into the air circulation purification, and the oil smoke in the kitchen can be further reduced.

For the air outlet 21b disposed on the front surface of the purifying housing 21, in another embodiment, an adjustable inclination angle with an upward opening is formed between the air outlet direction of the air outlet 21b and the horizontal plane, the adjustable inclination angle is not less than 30 ° and not more than 75 °, so that the air outlet direction of the air outlet 21b is inclined upward, and thus the oil smoke obliquely above the range hood can be pushed down, that is, a large-scale air purification cycle can be formed in the whole space in front of the range hood, and the amount of oil smoke in a kitchen can be reduced more effectively.

In one embodiment, the air inlet 21a is disposed on the top surface of the purifying housing 21; thus, the oil smoke escaping to the upper part of the air purification device 2 is favorably sucked and purified. It can be understood that the oil smoke tends to escape upwards due to the action of the thermal plume during the cooking process, so that more oil smoke is gathered above the air purification device 2, and the air inlet 21a is arranged on the top surface of the purification shell 21, so that the oil smoke can be conveniently sucked.

However, the design is not limited thereto, in other embodiments, referring to fig. 1 and fig. 2, the air inlet 21a is disposed on the side surface of the purifying housing 21, so as to facilitate sucking the oil smoke escaping to the side of the range hood into the purifying housing 21, so as to reduce the oil smoke at the side of the range hood. Particularly, when a dual-burner kitchen range is used below the range hood, the oil smoke generated during cooking easily escapes from the side direction of the range hood, and the air inlet 21a located on the side surface of the purifying housing 21 is more beneficial to sucking the oil smoke. Optionally, the air inlets 21a are disposed on two opposite sides of the purifying housing 21, so as to reduce oil smoke on two sides of the range hood. Of course, the air inlet 21a may be provided only on one of the two sides of the purification casing 21. Optionally, an air inlet grille 24 is disposed on the air inlet 21a to prevent hands and other foreign objects from extending into the purifying housing 21.

Of course, in other embodiments, the air inlets 21a may be disposed on both the top surface and the side surface of the purifying housing 21, so as to reduce the oil smoke above the air purifying device 2 and on the side of the range hood.

In addition, for the solution in which the opposite two side surfaces of the purifying housing 21 are provided with the air inlets 21a, referring to fig. 1 and 2, optionally, two filter elements 22 are provided, and each filter element 22 is disposed adjacent to one of the air inlets 21 a; therefore, once the air with the oil smoke enters the purifying shell 21, the air can be filtered by the filter element 22, and the probability that the air with the oil smoke pollutes other devices in the purifying shell 21 is reduced. However, the design is not limited thereto, and in other embodiments, only one filtering element 22 may be disposed near the air outlet 21b, so that the oil smoke in the air can be purified and then discharged.

When the cigarette machine main body 1 and the air purification device 2 are connected, the internal circuits of the cigarette machine main body 1 and the air purification device 2 can be communicated, so that the cigarette machine main body 1 and the air purification device 2 are controlled to be communicated and/or signals are communicated.

In one embodiment, the cigarette maker main body 1 is provided with a first electrical contact, the air purification device 2 is provided with a second electrical contact, and when the air purification device 2 is connected to the cigarette maker main body 1, the first electrical contact is electrically connected with the second electrical contact. The first electric contact and the second electric contact can be mutually matched electrodes, and the arrangement of the first electric contact and the second electric contact can be contact pin communication or patch communication.

After the circuits of the smoke exhaust ventilator and the air purification device are conducted, optionally, the smoke exhaust ventilator main body 1 and the air purification device 2 are connected to the same controller 3, that is, the smoke exhaust ventilator controls the smoke exhaust ventilator main body 1 and the air purification device 2 through the same controller 3; the controller 3 is typically provided on the cigarette maker body 1, and the cigarette maker body 1 is typically larger in volume than the air cleaning device 2, so that there is more space and location for the controller 3 to be installed. However, the design is not limited thereto, and in other embodiments, the range hood may also be provided with two different controllers 3 to respectively control the range hood body 1 and the air purification device 2.

Optionally, the cigarette machine main body 1 and the air purification device 2 share one control switch 4, so that when the cigarette machine main body 1 is turned on through the control switch 4 to work, the air purification device 2 can be turned on automatically at the same time to work, that is, the cooperative work of turning on the cigarette machine main body 1 and the air purification device 2 by one key can be realized. The control switch 4 is usually electrically connected to the controller 3 to realize the on/off control. When one control switch 4 is shared, the control switch 4 is normally provided on the cigarette maker main body 1.

However, the design is not limited thereto, in other embodiments, the cigarette maker main body 1 and the air purification device 2 may also use different control switches 4, respectively, to implement independent on/off control of the cigarette maker main body 1 and the air purification device 2, so that a user may use respective functions of the cigarette maker main body 1 and the air purification device 2 more flexibly. When different control switches 4 are respectively used, the two control switches 4 can be arranged on the cigarette machine main body 1; of course, the two control switches 4 can also be correspondingly arranged on the cigarette machine main body 1 and the air cleaning device 2 respectively.

Generally, the cigarette maker main body 1 is provided with a control panel located on the front of the smoke collecting hood 12, and when the cigarette maker main body 1 and the air cleaning device 2 share one control switch 4, the control switch 4 is generally integrated on the control panel, that is, the control switch 4 is located on the front of the smoke collecting hood 12, which may be more convenient for a user to operate.

With continued reference to FIG. 1, optionally, a purge housing 21 is provided at a lower portion of the front of the fan guard 11; it can be appreciated that the lower portion of the front surface of the fan guard 11 is closer to the user breathing zone, that is, the air outlet 21b of the purifying housing 21 is closer to the user breathing zone, which is more beneficial to blowing purified air to the user breathing zone to improve the air quality of the user breathing zone. However, the design is not limited to this, in some other embodiments, the purifying housing 21 may also be disposed on the upper portion of the front surface of the fan housing 11, so that the position of the purifying housing 21 is higher, and the position of the air outlet 21b is also higher, and particularly, when the air outlet direction of the air outlet 21b is inclined upwards, the purified air blown out from the air outlet 21b can be blown to a higher space in the kitchen, so that the range of air circulation purification in the kitchen is wider, and the purification is more thorough. In other embodiments, the purifying housing 21 can be disposed in the middle of the front surface of the fan guard 11, so as to improve the air quality in the breathing zone of the user and to increase the range of air circulation purification in the kitchen to some extent.

In an embodiment, the purifying fan 23 is configured as a centrifugal fan (see fig. 2), on one hand, the centrifugal fan has a large air volume and low noise, so that the air purifying device 2 can realize far air supply under low noise; on the other hand, the centrifugal fan has the function of changing the wind direction (axial air inlet and radial air outlet), and can realize the top surface air inlet front air outlet or the two side air inlet front air outlet of the air purification device 2 on the premise of not specially setting a turning air duct component.

Optionally, the circulating air volume of the purifying fan 23 is not less than 10 cubic meters per hour; it can be understood that if the circulating air volume is too small, the realization of the air circulation purification in the kitchen is not facilitated. The circulation air volume in the present embodiment means an air volume per unit time. In this embodiment, generally, the larger the area of the kitchen, the larger the circulating air volume of the purifying fan 23 needs to be, and the purifying fan 23 with a circulating air volume of 50 cubic meters/hour, 100 cubic meters/hour, 150 cubic meters/hour, 200 cubic meters/hour, 250 cubic meters/hour, or 300 cubic meters/hour may be selected according to the needs of the kitchen area. Of course, the larger the circulating air volume of the cleaning fan 23 is, the more advantageous the air circulation cleaning in the kitchen is.

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 (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.

Referring to fig. 2, in one embodiment, the filter 22 includes a HEPA filter 221 (high efficiency air filter) and an activated carbon filter 222. The HEPA filter screen 221 is mainly used for filtering particulate matters (liquid and solid) in oil smoke, and the material of the HEPA filter screen can comprise PP filter paper (polypropylene filter paper), glass fiber, PTFE filter paper (polytetrafluoroethylene filter paper), nano fiber, melt-blown polyester non-woven fabric and the like, so that the HEPA filter screen has the characteristics of large dust holding capacity and high filter precision, the filter efficiency of the oil smoke particulate matters can exceed 90%, and the HEPA filter screen can be processed into required size and shape according to the machine type requirements. The activated carbon filter screen 222 is mainly used for filtering volatile organic compounds (smell) in the oil smoke, and the material of the activated carbon filter screen may include activated carbon fibers, activated carbon particles, and the like, and the adopted activated carbon material may be coconut shells, fruit shells, coal-based carbon, and the like, which has a large specific surface area, or the adopted activated carbon material may be a molecular sieve material, which has a good adsorption effect. Optionally, the HEPA filter 221 is located upstream of the activated carbon filter 222 in the airflow direction, so that the particles in the oil smoke can be prevented from adhering to the activated carbon filter 222, thereby prolonging the service life of the activated carbon filter 222.

Optionally, in the direction of the air flow, the filter element 22 is located upstream of the purge fan 23; so, can make the air current through purification fan 23 be the air current after the purification, avoid the oil smoke to be in purification fan 23 is last to gather, prolongs purification fan 23 life-span.

Referring to fig. 1 and 2, in one embodiment, the purification housing 21 is provided with a filter mounting opening 210, and the filter member 22 is detachably mounted in the purification housing 21 through the filter mounting opening 210, so that the filter member 22 can be easily removed for cleaning or replacement. It will be appreciated that the filter element 22 generally has a certain life, for example, the HEPA filter 221 used in the present embodiment has a design life of generally more than 1 month, and needs to be replaced after the life is reached, so as to ensure the good purification capability of the air purification apparatus 2, and in addition, the filter element is periodically or aperiodically removed for cleaning or cleaning, which is beneficial to prolong the life.

As for the filter member 22 including both the HEPA filter 221 and the activated carbon filter 222, optionally, the HEPA filter 221 and the activated carbon filter 222 thereof are generally produced as one module so as to be modularly assembled to the purification housing 21 at a time, reducing the assembly process and improving the assembly efficiency.

Optionally, the filter element 22 is drawably disposed in the filter element mounting opening 210; it will be appreciated that removal cleaning or replacement of the filter element 22 can be more easily performed by means of pulling.

Optionally, a mounting groove 220 extending toward the filter mounting port 210 is formed in the purification housing 21, and the filter 22 is mounted in the mounting groove 220; it will be appreciated that the mounting slots 220 extend toward the filter mounting opening 210 to provide a guided mounting that facilitates the extraction of the filter element 22 relative to the filter mounting opening 210.

As for the technical solution that the air inlet 21a is disposed on the side surface of the purifying housing 21, optionally, referring to fig. 2, the air purifying device 2 further includes a filter mounting box 28 disposed in the purifying housing 21, the filter mounting box 28 is provided with a mounting opening 220a corresponding to the filter mounting opening 210, the mounting groove 220 is disposed in the filter mounting box 28, and the filter 22 sequentially passes through the filter mounting opening 210 and the mounting opening 220a and is mounted in the mounting groove 220. Of course, the side wall of the filter mounting box 28 opposite the filter element 22 is hollow or otherwise free to allow air flow through the filter element 22. Further alternatively, both the bottom wall and the top wall of the filter mounting box 28 are convexly provided with two parallel guide rails 281 extending toward the mounting opening 220a, and the mounting groove 220 is formed between the two guide rails 281.

Optionally, a filter cover 26 is disposed on the filter mounting opening 210; so, will strain a piece 22 certainly strain a piece installing port 210 and pack into the purification shell 21 after, will strain a piece lid 26 lid and close and strain a piece installing port 210, can avoid filtering a piece 22 and shake out, improve the structural stability of product, can also avoid foreign matter etc. to get into in the purification shell 21 from straining a piece installing port 210 simultaneously.

In one embodiment, the filter cover 26 is rotatably coupled to the filter mounting opening 210 on a first side and removably coupled to the filter mounting opening 210 on a second side; in this manner, after opening the filter cover 26, the filter cover 26 remains attached to the filter mounting opening 210, preventing the filter cover 26 from being lost. However, the design is not limited thereto, and in other embodiments, the filter cover 26 can be integrally and detachably connected to the filter mounting opening 210.

With respect to the embodiment wherein the first side of the filter cover 26 is rotatably connected to the filter mounting opening 210, optionally, the second side of the filter cover 26 is connected to the filter mounting opening 210 by a push-button type snap-on switch assembly, thereby facilitating the opening of the filter cover 26. The pressing type snap switch assembly generally includes a self-locking switch disposed at the filter mounting opening 210, and a snap portion disposed at the filter cover 26 and engaged with the self-locking switch. When the filter cover 26 is in an open state, rotating the filter cover 26 to a position where the second side is close to the filter mounting port 210, then pressing the filter cover 26 until the buckling part enters the self-locking switch, so that the self-locking switch locks the buckling part, and the filter cover 26 and the purification shell 21 can be fixed; then, when the filter cover 26 is pressed again, the latching portion is released by the self-locking switch, so that the filter cover 26 can be rotated and opened relative to the filter mounting opening 210. However, the design is not limited thereto, and in other embodiments, the second side of the filter cover 26 can be detachably connected to the filter mounting opening 210 by, but not limited to, a screw locking structure, a wrench structure, etc.

The above description is only a preferred embodiment of the present invention, and is 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:

a cigarette machine main body; and

2. The range hood according to claim 1 wherein the range hood body comprises a fan hood and a smoke collection hood disposed below the fan hood, the clean-up housing being removably connected to the smoke collection hood.

3. The range hood according to claim 2 wherein one of the fume collecting hood and the purifying housing is provided with a plug-in groove, and the other of the fume collecting hood and the purifying housing is provided with a plug-in pin which is detachably plugged in the plug-in groove.

4. The range hood according to claim 2 wherein one of the fume collecting hood and the purifying housing is provided with a first magnetic member, and the other of the fume collecting hood and the purifying housing is provided with a second magnetic member, and the first magnetic member and the second magnetic member are magnetically attracted.

5. The range hood according to claim 2, wherein one of the fume collecting hood and the purifying housing is provided with a plug-in groove, the other one of the fume collecting hood and the purifying housing is provided with a plug-in pin, the plug-in pin is provided with a first magnetic member, the plug-in groove is provided with a second magnetic member, and when the plug-in pin is detachably plugged in the plug-in groove, the first magnetic member and the second magnetic member are magnetically adsorbed.

6. The range hood of any one of claims 1 to 5 wherein the range hood body is provided with a first electrical contact, the air cleaning device is provided with a second electrical contact, and the first electrical contact is electrically connected to the second electrical contact when the air cleaning device is attached to the range hood body.

7. The range hood according to any one of claims 2 to 5, wherein the purifying housing is disposed on an upper surface of the fume collecting hood and is located on a front surface of the fan hood;

8. The range hood of claim 7 wherein a shock pad is disposed between the clean housing and the fume collecting hood;

9. The range hood of any one of claims 1 to 5 wherein the purification housing is provided with a filter mounting opening through which the filter element is removably mounted within the purification housing.

10. The range hood of claim 9 wherein the filter member is retractably disposed in the filter member mounting opening.