CN113898990A

CN113898990A - Smoke exhaust ventilator

Info

Publication number: CN113898990A
Application number: CN202010644583.7A
Authority: CN
Inventors: 刘智; 杨涛; 梁泽锋; 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: 2022-01-07

Abstract

The invention discloses a range hood, which comprises a range hood main body and an air purification device, wherein the air purification device comprises a purification shell arranged outside the range hood main body, and a filtering piece and a purification fan which are arranged in the purification shell, the purification shell is provided with an air inlet and an air outlet, the filtering piece and the purification fan are both arranged between the air inlet and the air outlet, and the purification shell can move relative to the range hood main 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 human bodies.

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, aiming at further reducing the pollution of oil smoke to the air environment and the damage to the health of human bodies.

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, the purification shell for the cigarette machine main part is portable.

So, set up air purification device in the cigarette machine main part on the one hand, can be so that when air purification device and cigarette machine main part collaborative work, the produced oil smoke of culinary art process most discharges to outdoor through the interior oil absorption cigarette wind channel of cigarette machine main part, and other spaces in the kitchen can be escaped to the fractional part oil smoke, and the purification wind channel in this fractional part oil smoke accessible air purification device obtains further getting rid of to further reduce the pollution of oil smoke to air environment and to the harm of health. On the other hand, the purifying shell and the smoke machine body are movably arranged. That is, the air cleaning device and the cigarette machine main body can be used together as two independent components. In an exemplary version, the outer smoke purifying housing is moved relative to the body of the cigarette machine as needed by securing the body of the cigarette machine above the cooktop. Air purification device can put the setting as required (for example the direction that the oil smoke is elegant, the more region of dense cigarette or be close to human work area) to the maximize utilizes air purification device's air purification ability, further improves air purification's effect. And, air purification device and cigarette machine main part independent setting can realize the replacement of modularization and use in combination. For example, air purification devices of different specifications can be selected to be used in cooperation with the cigarette machine main body, and personalized selection setting is realized. Simultaneously, can also conveniently carry out the independent transportation with the two in the transportation, when one of them damage of cigarette machine main part and air purification device, also can carry out independent dismantlement and maintenance, reduce the maintenance cost.

Optionally, the range hood body comprises a fan guard and a smoke collection hood disposed below the fan guard, and the clean-up housing is movable relative to the smoke collection hood.

So, can conveniently will adjust relative position and distance between purification shell and the collection petticoat pipe.

Optionally, the placeable positions of the purge housing include: the placing position is positioned above the fume collecting hood and is positioned on the front surface of the fan hood;

or the placing position is positioned above the fume collecting hood and is positioned on the side surface of the fan hood;

or the placing position is positioned above the fume collecting hood and is positioned at a corner between the side surface and the front surface of the fan hood;

or the placement position is positioned below the fume collecting hood, and the purifying shell is at least partially positioned outside the projection range of the fume collecting hood on the workbench.

The air purification device is arranged in a plurality of positions.

Optionally, the fume collecting hood is provided with an anti-slip layer for receiving the purifying shell;

and/or the purification shell is provided with an anti-skid layer used for being abutted against the placement surface.

Thus, the scheme of anti-skid placement can be realized.

Optionally, the bottom of the purifying shell is provided with a pulley, and the pulley drives the purifying shell to move relative to the cigarette machine main body.

Therefore, the air purification device can be conveniently moved.

Optionally, a limiting member is further disposed at a position of the purifying housing adjacent to the pulley, and the limiting member is used for limiting rotation of the pulley when abutting against the pulley;

and/or the bottom of the purifying shell is provided with a holding groove, and the pulley can extend out of or retract into the holding groove.

Therefore, the air purification device can be limited and fixed after sliding.

Optionally, the range hood further comprises a connection cable, wherein the connection cable is used for electrically connecting the range hood main body and the air purification device and is conducted with an external circuit;

or, the cigarette machine main body is conducted with an external circuit through a connecting cable, and the air purification device is conducted with the external circuit through another connecting cable.

Therefore, the communication of an external circuit can be realized, and one cable can save space. The two cables can be independently controlled.

Optionally, the circulating air volume of the purification fan is greater than or equal to 10 cubic meters per hour;

and/or, filter the piece and include HEPA filter screen and active carbon filter screen, and in the air current direction, the HEPA filter screen is located active carbon filter screen upstream.

Thus, effective purification of air in the space can be achieved.

Optionally, purify the shell and include the wind channel shell, the wind channel shell is including being used for supplying filter the filter shell portion of installing and be used for supplying purify the fan shell portion that the fan was laid, filter the shell portion and have relative first side and second side, the first side of filtering the shell portion is equipped with the air intake, the fan shell portion connect in filter the second side of shell portion, the air outlet is located the fan shell portion.

Therefore, the filtering element shell is beneficial to guiding airflow to the filtering element, and the airflow purification efficiency is improved; and to the fan shell, when purifying the fan and adopting centrifugal fan, the shape of centrifugal spiral case can be made to the fan shell to make the compact structure of purification module, be favorable to purifying the miniaturization of module volume.

Optionally, purify the shell and still include the protective housing, the protective housing splice in filter the second side of piece shell, and shroud the fan shell, just correspond on the protective housing the air outlet is equipped with and dodges the mouth.

So, on the one hand the protective housing can give the fan shell in case collision protection to reduce the collision probability in each bight of fan shell, on the other hand with strain a shell concatenation after, can make the whole surface of purifying the shell more regular, thereby reduce the corner structure of easily depositing the dust, improve the installation stability between purifying shell and the cigarette machine main part simultaneously.

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, the purifying shell and the smoke machine body are movably arranged. That is, the air cleaning device and the cigarette machine main body can be used together as two independent components. In an exemplary version, the outer smoke purifying housing is moved relative to the body of the cigarette machine as needed by securing the body of the cigarette machine above the cooktop. Air purification device can put the setting as required (for example the direction that the oil smoke is elegant, the more region of dense cigarette or be close to human work area) to the maximize utilizes air purification device's air purification ability, further improves air purification's effect.

And, air purification device and cigarette machine main part independent setting can realize the replacement of modularization and use in combination. For example, air purification devices of different specifications can be selected to be used in cooperation with the cigarette machine main body, and personalized selection setting is realized. Simultaneously, can also conveniently carry out the independent transportation with the two in the transportation, when one of them damage of cigarette machine main part and air purification device, also can carry out independent dismantlement and maintenance, reduce the maintenance cost.

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

FIG. 3 is a schematic view of an air circulation path of the air cleaning device of the range hood of FIG. 1;

FIG. 4 is a schematic structural view of the air cleaning device of the range hood of FIG. 1 disposed on a side surface of a fan housing;

FIG. 5 is a schematic structural view of the range hood of FIG. 1 with an air cleaning device disposed at a corner;

fig. 6 is a schematic structural view of the range hood of the present invention with the air cleaning device disposed below the fume collecting hood.

The reference numbers illustrate:

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 to 3, 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.

With reference to fig. 2, the air purifying device 2 includes a purifying housing 21 disposed outside the cigarette maker main body, and a filter 22 and a purifying fan 23 disposed inside the purifying housing 21, wherein the purifying housing 21 is provided with an air inlet 21a and an air outlet 21b, the filter 22 and the purifying fan 23 are both disposed between the air inlet 21a and the air outlet 21b, and the purifying housing 21 is movable relative to the cigarette maker main body 1. 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 purge 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 both communicated with the room, the air inlet 21a is used for sucking air in the room of the 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 room of the kitchen. The outer purifying housing 21 is movable relative to the cigarette machine body 1, it being understood that the relative position of the outer purifying housing 21 relative to the cigarette machine body 1 can be changed so that the distance and position of the air purifying device 2 relative to the cigarette machine body 1 can be adjusted and changed as desired.

When the air purification device 2 and the cigarette machine main body 1 work in a cooperative manner, most of oil smoke generated in the cooking process is discharged to the outside through an oil smoke suction air channel in the cigarette machine main body, 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 a purification air channel 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.

This embodiment is through establishing air purification device 2 outside cigarette machine main part 1 on the one hand, can be so that carry out spare part (for example filter piece 22) to air purification device 2 and change or when maintaining air purification device 2, need not to carry out the dismouting to cigarette machine main part 1, and is more convenient, can be respectively with cigarette machine main part 1 and air purification device 2 respectively independent equipment back simultaneously, the equipment is in the same place again, also be favorable to range hood's modular assembly, can improve range hood's assembly efficiency.

According to the technical scheme, on one hand, the air purification device 2 is arranged on the cigarette machine main body 1, so that 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 channel 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 channel 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.

On the other hand, the purifying shell 21 is movably arranged with the cigarette machine body 1. That is, the air cleaning device 2 and the cigarette maker body 1 can be used cooperatively as two separate components. In an exemplary version, the outer clean housing 21 is moved relative to the cigarette machine body 1 as needed by securing the cigarette machine body 1 above the cooktop. The air purification device 2 can be placed and arranged according to needs (such as the flowing direction of oil smoke, the region with more dense smoke or the working region close to a human body), so that the air purification capacity of the air purification device is utilized to the maximum degree, and the air purification effect is further improved.

Moreover, the air purification device 2 and the cigarette machine main body 1 are independently arranged, and modularized replacement and combined use can be realized. For example, the air purification devices 2 with different specifications can be selected to be matched with the cigarette machine main body 1 for use, so that personalized selective setting is realized. Meanwhile, the cigarette machine main body and the air purification device 2 can be conveniently and independently transported in the transportation process, and when one of the cigarette machine main body 1 and the air purification device 2 is damaged, the cigarette machine main body and the air purification device can be independently disassembled and maintained, so that 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, a clean out enclosure 21 is disposed above the smoke collection hood 12, and the clean out enclosure 21 is movable relative to the smoke collection hood 12.

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.

The main part of drawing the oil smoke of collection petticoat pipe 12 position, the inlet flue also sets up in the below of collection petticoat pipe 12, through with purifying the shell 21 for collection petticoat pipe 12 is portable for air purification device 2 can realize oil smoke discharge and air purification's synergistic effect with the better cooperation of cigarette machine main part 1.

In the solution of the present application, there are many places where the purifying housing 21 can be placed when moving relative to the smoke collecting hood 12, and the following are embodiments of some places where the purifying housing 21 can be placed:

in one embodiment, the placement location may be located above the fume collection hood 12. The oil smoke tends to gather at the upper half part of the kitchen space due to the effect of the hot plume during the cooking process, and the oil smoke not sucked by the range hood main body 1 can be further sucked into the air cleaning device 2 by arranging the cleaning housing 21 above the smoke collecting hood 12, thereby completing the auxiliary cleaning of the air. Meanwhile, the smoke collecting hood 12 is used as a part for bearing the air purifying device 2, so that the space occupied by the whole air purifying device 2 can be saved, and the space in a kitchen can be effectively utilized.

While the air cleaning device 2 is placed above the hood 12, the following choices can be made in the place where it is placed:

referring to fig. 1 and 3, one position may be: the placement position is located above the smoke collection hood 12 and also on the front side of the fan cover 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.

Referring to fig. 4, another position may be: the placement position is located above the smoke collection hood 12 and also on the side of the fan cover 11.

This placement position can be located to allow the purge shell 21 to 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.

Referring to fig. 5, yet another position may be: the placement position is located above the fume collecting hood 12 and also at the corner between the side and the front of the fan guard 11.

By placing the purification shell 21 at a corner, the position of the corner is larger, the placement space is more sufficient, and the disassembly and assembly of the purification shell 21 are more convenient.

In another embodiment, it is possible in one embodiment to locate the placement position below the smoke collecting hood 12. The hood 12 is close to the operator below. Through setting up purifying housing 21 in the below of collection petticoat pipe 12, can be so that the oil smoke that overflows here directly is purified by air purification device 2, then directly provides the fresh air of operator to promote operator's use and experience, reduce the harm to health.

Referring to fig. 6, one position may be: the placement position is located below the hood 12, and the purifying housing 21 is located at least partially outside the range of projection of the hood 12 on the work table.

The fume collecting hood 12 is generally arranged opposite to a cooking bench on the workbench, and the cooking bench is in the projection range of the fume collecting hood. Through with purifying housing setting at least partly outside being located collection petticoat pipe 12 at the projection scope of workstation, can prevent that the kitchen range fire of kitchen range from to air purification device 2 and producing the influence, promote air purification device 2's life.

Of course, the purifying housing 21 can also be located in the projection range of the smoke collecting hood 12 on the work bench, and the air purifying device 2 is closer to the hearth, so that better air purifying effect can be provided.

In one embodiment, the hood 12 serves as a load bearing member when the air cleaning device 2 is placed over the hood 12. In order to make the installation of the air cleaning device 2 more stable, the hood 12 may be provided with an anti-slip layer for receiving the cleaning housing 21. This skid resistant course can be soft rubber pad or silica gel pad, plays the skid-proof effect of damping, and this skid resistant course can also have absorbing effect. Of course, the purification shell 21 can also be synchronously provided with an anti-skid layer, so that the anti-skid and shock-absorbing effects are further enhanced.

When the air cleaning device 2 is placed below the hood 12, the cleaning case may be provided with an anti-slip layer for abutting against the mounting surface. The placing surface can be a table top of a workbench (the table top placed on the workbench is shown in figure 6) or the floor of a kitchen. This skid resistant course can be soft rubber pad or silica gel pad, plays the skid-proof effect of damping, and this skid resistant course can also have absorbing effect.

Of course, when the air cleaning device 2 is placed above the smoke collecting hood 12, the air cleaning device 2 may be placed on the smoke collecting hood 12 to be connected by adopting a detachable connection manner.

The detachable connection mode can be various, for example, one or more of detachable structures such as a screw locking structure, a buckling structure and the like are adopted to be installed on the cigarette machine main body 1, so that the air purification device 2 can be conveniently maintained and disassembled.

In an embodiment of the present application, the purifying housing 21 is installed by providing a socket (not shown) on one of the fume collecting hood 12 and the purifying housing 21 and providing a socket on the other of the fume collecting hood 12 and the purifying housing 21, wherein the socket is detachably inserted into the socket. The arrangement of the plug pins and the plug grooves has a simpler structure. Which forms a plug socket and a plug foot which can be annular. Also can be for cylindrical plug pin and the inserting groove 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 can be arranged at the bottom of the purifying shell 21 or at the side edge, and are determined mainly according to the installation positions of the purifying shell 21 and the smoke collecting hood 12 which are connected with each other.

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, and the other of the fume collecting hood 12 and the purifying housing 21 is provided with a second magnetic member (not shown), and the first magnetic member and the second magnetic member are magnetically attracted. The mutual connection and installation of the fume collecting hood 12 and the purifying housing 21 are more stable by the magnetic adsorption of the first magnetic member and the second magnetic member. Of course, the shape and position of the first and second magnetic members may be set as desired. For example, a first magnetic member may be provided at the bottom of the purifying housing 21 and a second magnetic member may be provided at the upper surface of the smoke collecting hood 12, thereby performing magnetic butt-joint installation.

Of course, the magnetic adsorption and the inserting fixation can be combined for use, in an embodiment, one of the smoke collecting hood 12 and the purifying housing 21 is provided with an inserting groove, the other one of the smoke collecting hood 12 and the purifying housing is provided with an inserting pin, the inserting pin is provided with a first magnetic part, a second magnetic part is arranged in the inserting groove, and when the inserting is detachably inserted in the inserting groove, the first magnetic part and the second magnetic part are magnetically adsorbed. That is, the connection between the two can be more stable through the first mutual insertion and the magnetic attraction.

Referring to fig. 6 in combination, in order to facilitate the movement of the air purifying device 2, it may be configured as follows: the bottom of the purifying shell 21 is provided with a pulley 26 which drives the purifying shell 21 to move relative to the cigarette machine main body 1.

Further, after the air purification device 2 is moved, in order to make the air purification device 2 more stable in operation, the following way is used for limiting:

a stopper (not shown) is further provided at a position of the purification housing 21 adjacent to the pulley 26, and the stopper is configured to restrict the rotation of the pulley 26 when abutting against the pulley. The limiting part can be a clamping rod clamped with the pulley and can also be a brake structure similar to a bicycle. And after the pulley slides to a specified position, the pulley is limited and fixed.

Of course, it is also possible to provide that the bottom of the purifying housing 21 is provided with a receiving groove 26a, and the pulley 26 can be extended or retracted into the receiving groove 26 a. Fig. 6 is a schematic view showing the case where the cleaning case 21 is provided with the pulley 26 to move, the pulley 26 is extended out of the receiving groove 26a in moving, and the pulley 26 is retracted into the receiving groove 26a in fixing, and the bottom of the cleaning case 21 is directly contacted with the work surface.

In one embodiment, the range hood comprises a controller, and the range hood body 1 and the air purification device 2 are in communication connection with the controller. The range hood main body and the air purification device 2 are connected to the same controller, namely, the range hood main body 1 and the air purification device 2 are controlled by the same controller; the controller 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 to be installed. However, the design is not limited thereto, in other embodiments, the range hood may also be provided with two different controllers, the range hood body 1 is in communication connection with one controller, and the air purification device 2 is in communication connection with the other controller, so as to respectively control the range hood body 1 and the air purification device 2.

Alternatively, the cigarette maker body 1 and the air cleaning device 2 may share one control switch. So, when opening cigarette machine main part 1 through control switch and carrying out work, can open air purification device 2 simultaneously automatically and carry out work, promptly, can realize that a key opens cigarette machine main part 1 and air purification device 2's collaborative work. 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 arranged on the cigarette machine main body 1.

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

However, the design is not limited to this, in other embodiments, the cigarette machine main body 1 uses one control switch, and the air purification device 2 uses another control switch, so as to implement the independent on-off control of the cigarette machine main body 1 and the air purification device 2, so that the user can use the respective functions of the cigarette machine main body and the air purification device 2 more flexibly; at the moment, the two control switches can be arranged on the cigarette machine main body; of course, the two control switches can also be correspondingly arranged on the cigarette machine main body 1 and the air purification device 2 respectively.

When the wires are arranged to connect with the external circuit, an embodiment may be arranged as follows: the range hood further comprises a connecting cable which is used for electrically connecting the range hood main body 1 and the air purification device 2 and is communicated with an external circuit. The cigarette machine main body 1 and the air purification device 2 are connected to the same connecting cable, that is, the cigarette machine main body 1 and the air purification device 2 are communicated with an external circuit (generally a municipal line) through the same connecting cable by the range hood. So can save arranging of circuit, especially when air purification device 2 sets up the top at collection petticoat pipe 12, can set up the electric contact between the two and carry out direct electric connection, then the cable of sharing cigarette machine main part 1 can switch on with external circuit.

Of course, in another embodiment, the cigarette maker main body is conducted with the external circuit through a connecting cable, and the air purifying device is conducted with the external circuit through another connecting cable. Separate power supply and control can be achieved by separate power supply lines.

In one embodiment, the air outlet 21b is disposed on the 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, referring to fig. 1 to 3, the air outlet 21b may also be disposed on the top surface of the purifying housing 21. So, after air purification device 2 opened, air purification device 2 upward air-out or at least have the air-out weight of upwards. 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, to locating the positive air outlet 21b of purifying housing 21, the accessible changes its air-out direction, satisfies the user to air purification device 2 more air-out demands, for example, satisfies different height users' directly blow or do not directly blow demand etc..

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 grid, so as to adjust the air outlet direction of the air outlet 21b by rotating the air guiding grid, 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 air guiding grills may be configured, and the air guiding grills of different air outlet grills 25 have different inclination angles with respect to the vertical surface, and the air outlet grille 25 having the air guiding grills with 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 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 to.

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 adjusting 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 purification enclosure 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, and in other embodiments, the air inlet 21a is disposed on the side surface of the purifying housing 21, so that the oil smoke escaping to the side of the range hood can be sucked into the purifying housing 21, thereby reducing 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 technical solution that the opposite two side surfaces of the purifying housing 21 are provided with the air inlets 21a, optionally, two filter elements 22 are provided, and each filter element 22 is disposed near 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.

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.

In one embodiment, the filter 22 includes a HEPA filter 221 (high efficiency air filter) and an activated carbon filter 222 (see fig. 2). 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.

In one embodiment, 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. Optionally, the purification fan 23 is configured as a centrifugal fan, which has a large air volume and a low noise, so that the purification module 20 can realize far air supply at a low noise.

Referring to fig. 2 in combination, in one embodiment, the purification casing 21 includes an air duct case 211, the air duct case 211 including a filter case portion 211a for mounting the filter 22 and a fan case portion 211b for mounting the purification fan 23; the filter shell 211a has a first side and a second side opposite to each other, the first side of the filter shell 211a is provided with the air inlet 21a, the fan shell 211b is connected to the second side of the filter shell 211a, and the air outlet 21b is provided in the fan shell 211 b. The filter element shell 211a is beneficial for guiding the airflow to the filter element 22, and the purification efficiency of the airflow is improved; and for the blower housing part 211b, when the centrifugal blower is adopted as the cleaning blower 23, the blower housing part 211b can be made into the shape of a centrifugal volute, so that the structure of the cleaning module 20 is compact, and the miniaturization of the volume of the cleaning module 20 is facilitated. It should be noted that, for the air inlet 21a disposed on the front surface of the purification casing 21, the first side and the second side of the filter housing 211a are the front surface and the back surface of the filter housing 211a, respectively; and for the purification module 20 in which the air inlet 21a is provided at the side of the purification casing 21, the first side and the second side of the filter housing portion 211a are the left side and the right side of the filter housing portion 211a, respectively.

Optionally, the purifying housing 21 further comprises a protective housing 212, the protective housing 212 is spliced to the second side of the filter member housing 211a and covers the fan housing 211b, so that on one hand, the protective housing 212 can protect the fan housing 211b from collision to reduce the probability of collision and damage at each corner of the fan housing 211b, and on the other hand, after being spliced with the filter member housing 211a, the whole outer surface of the purifying housing 21 can be more regular, thereby reducing the corner structures prone to dust deposition and improving the installation stability between the purifying housing 21 and the cigarette maker body. Without loss of generality, an avoidance port 212a is formed in the protective shell 212 corresponding to the air outlet 21 b.

In an embodiment, optionally, the air inlet 21a is an opening formed on a first side of the filter element housing 211a, and the air inlet 21a is detachably provided with an air inlet grille 24, so that the filter element 22 can be easily detached and assembled after the air inlet grille 24 is detached, thereby facilitating the removal, cleaning or replacement of the filter element 22.

However, the design is not limited thereto, and in other embodiments, the filter housing portion 211a may be provided with a filter mounting opening through which the filter 22 is detachably mounted into the filter housing portion 211 a. Optionally, the filter element 22 is drawably disposed at the filter element mounting opening; it will be appreciated that removal cleaning or replacement of the filter element 22 can be more easily performed by means of pulling. Further optionally, a filter cover is arranged on the filter mounting opening; so, will filter piece 22 certainly filter a mounting hole and pack into and strain a shell portion 211a after, will strain a lid and close and strain a mounting hole, can avoid filtering piece 22 and shake out, improve the structural stability of product, can also avoid foreign matter etc. to get into from straining a mounting hole simultaneously and strain in a shell portion 211 a.

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 of claim 1 wherein the hood body includes a fan guard and a smoke collection hood disposed below the fan guard, the clean-up housing being movable relative to the smoke collection hood.

3. The range hood of claim 2 wherein the placeable position of the purge housing comprises: the placing position is positioned above the fume collecting hood and is positioned on the front surface of the fan hood;

4. The range hood of claim 2 wherein the fume collection hood has an anti-skid layer for receiving the clean-up enclosure;

5. The range hood of claim 1 wherein the bottom of the outer clean-out housing has pulleys that move the outer clean-out housing relative to the body of the range hood.

6. The range hood of claim 5, wherein a stop is further disposed adjacent to the pulley, the stop being configured to stop the pulley from rotating when the stop abuts against the pulley;

7. The range hood according to any one of claims 1 to 6, further comprising a connection cable for electrically connecting the range hood body and the air purification device and communicating with an external circuit;

8. The range hood according to any one of claims 1 to 6, wherein the circulating air volume of the purification fan is greater than or equal to 10 cubic meters per hour;

9. The range hood according to any one of claims 1 to 6, wherein the purification housing comprises an air duct housing, the air duct housing comprises a filter housing for mounting the filter element and a fan housing for mounting the purification fan, the filter housing has a first side and a second side opposite to each other, the first side of the filter housing is provided with the air inlet, the fan housing is connected to the second side of the filter housing, and the air outlet is provided in the fan housing.

10. The range hood of claim 9, wherein the purification housing further comprises a protective shell, the protective shell is spliced on the second side of the filter shell and covers the fan shell, and an avoidance port is formed in the protective shell and corresponds to the air outlet.