CN213810786U

CN213810786U - Smoke exhaust ventilator

Info

Publication number: CN213810786U
Application number: CN202022636674.4U
Authority: CN
Inventors: 张野; 梁泽锋; 刘智; 汪耀东; 李忠华
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-27
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a range hood, range hood includes: the range hood comprises a range hood main body, a smoke collecting cover and a smoke exhaust pipe, wherein the range hood main body comprises a fan cover and the smoke collecting cover arranged below the fan cover; and the air purification device is arranged on the front surface of the fan cover and positioned above the fume collecting cover, wherein the vertical height distance between the air purification device and the fume collecting cover is 0-10 cm. The technical scheme of the utility model can further reduce the pollution of oil smoke to the air environment and the harm to the human health.

Description

Smoke exhaust ventilator

Technical Field

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

Background

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

SUMMERY OF THE UTILITY MODEL

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

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

the range hood comprises a range hood main body, a smoke collecting cover and a smoke exhaust pipe, wherein the range hood main body comprises a fan cover and the smoke collecting cover arranged below the fan cover; and

the air purification device is arranged on the front face of the fan cover and positioned above the fume collecting cover, wherein the vertical height distance between the air purification device and the fume collecting cover is 0-10 cm.

The utility model discloses technical scheme is through installing air purification device in the top of collection petticoat pipe and being located fan guard's front to air purification device is 0 to 10 centimetres with the upper and lower high distance of collection petticoat pipe, so make air purification device in the oil absorption cigarette course of work, more be close to the user, make the air current after the purification can blow off at people's breathing height region, thereby can reduce the user effectively under kitchen environment, the possibility of oil absorption cigarette, and then can ensure human health.

Optionally, the distance h between the air purification device and the smoke collecting hood is 5 cm to 8 cm in height from top to bottom.

In the embodiment, the purified natural wind is favorably blown to a user, and the cleaning of the whole machine is also favorably realized.

Optionally, a dimension extending in the left-right direction of the air purification device is defined as a, and a dimension extending in the left-right direction of the fan cover is defined as b, wherein a/b is more than or equal to 0.5 and less than or equal to 1.

In this embodiment, it is ensured that the air cleaning device has a large volume and thus ensures power, which is advantageous for reducing noise.

Optionally, a dimension extending in the vertical direction of the air purification device is defined as c, and a dimension extending in the vertical direction of the fan guard is defined as d, wherein c/d is greater than or equal to 0.25 and less than or equal to 1.

Optionally, a dimension extending in the front-back direction of the air purification device is defined as e, and a dimension extending in the front-back direction of the fan guard is defined as f, wherein e/f is greater than or equal to 0.12 and less than or equal to 0.38.

Optionally, the air purification device includes a purification shell connected to the fan cover, and a filter element and a purification fan both disposed in the purification shell, the purification shell is provided with an air inlet and an air outlet, the filter element and the purification fan are both disposed between the air inlet and the air outlet, and the air outlet is disposed on the front side of the purification shell.

In this embodiment, so, after purifier opened, it can be wind forward or have forward wind-out weight at least, and wind-out is favorable to carrying the air after purifying to user's breathing zone forward to be favorable to improving the air quality in user's breathing zone, reduce the probability that the user inhales the oil smoke, reduce the harm of oil smoke to user's health

Optionally, the air outlet direction of the air outlet is adjustable.

So, accessible changes its air-out direction, satisfies the user to air purification device's more air-out demands

Optionally, an adjustable inclination angle with an upper opening is formed between the air outlet direction of the air outlet and the upper surface of the smoke collecting hood, and the adjustable inclination angle is not less than 30 degrees and is not more than 75 degrees.

So, the air-out direction of air outlet has great adjustment range, can satisfy the demand of more operating modes.

Optionally, the air inlet is arranged on the side surface of the purification shell.

Optionally, the air inlets are disposed on two opposite side surfaces of the purification shell.

Thus, the oil smoke escaping upwards from the two sides of the range hood is favorably sucked and purified

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.

Drawings

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

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

fig. 2 is a schematic side view of the range hood in fig. 1;

fig. 3 is a schematic perspective view of the range hood in fig. 1;

FIG. 4 is an exploded view of the range hood of FIG. 1;

FIG. 5 is a partial structural sectional view of the range hood of FIG. 1;

fig. 6 is a perspective view of another embodiment of the range hood of the present invention;

fig. 7 is an exploded view of the range hood of fig. 6;

fig. 8 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:

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

Detailed Description

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

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to 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, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a range hood.

Referring to fig. 1 to 3, in an embodiment of the present invention, the range hood includes a range hood main body 1 and an air purification device 2, the range hood main body 1 includes a fan cover 11 and a smoke collecting hood 12 disposed below the fan cover 11, the air purification device 2 is installed on the front of the fan cover 11 and located above the smoke collecting hood 12, wherein an upper and lower height distance h between the air purification device 2 and the smoke collecting hood 12 is 0 to 10 cm.

In the embodiment, the air purifying device 2 is installed on the front surface of the fan housing 11, that is, the air purifying device 2 faces the user during the use of the range hood, and it is well known that, in general, the range hood has a certain distance between the smoke collecting hood 12 and the cooking bench for the convenience of use, and the height of the smoke collecting hood 12 is generally a little lower than the head height area of the user, or is equal to or slightly higher than the head area of the user, the application sets the upper and lower height distance h between the air purifying device 2 and the smoke collecting hood 12 to be 0 to 10 cm, for example, the lower surface of the air purifying device 2 is tightly attached to the upper surface of the smoke collecting hood 12, or the lower surface of the air purifying device 2 is 10 cm from the upper surface of the smoke collecting hood 12, so that the possibility that the height area where the air purifying device 2 is located and the head area of the user are overlapped is the greatest, the clean air generated by the operation and filtration of the air cleaning device 2 can thus form an air convection at least in the head region of the user, so that the user can breathe in the flow of clean air.

The utility model discloses technical scheme is through installing air purification device 2 in the top of collection petticoat pipe 12 and being located fan guard 11's front to air purification device 2 is 0 to 10 centimetres with collection petticoat pipe 12's upper and lower high distance h, so make air purification device 2 in the oil absorption cigarette course of work, be closer to the user, make the air current after the purification can blow off in people's breathing height region, thereby can reduce the user effectively under the kitchen environment, the possibility of oil smoke suction, and then can ensure human health.

As a preferable mode, the vertical height distance h between the air purification device 2 and the fume collecting hood 12 is 5 cm to 8 cm. This application air purification device 2 can be 5 centimetres, 6 centimetres, 7 centimetres, numerical values such as 8 centimetres apart from the upper and lower height of collection petticoat pipe 12, sets up like this and is favorable to blowing the clear air after purifying to the user, also is favorable to stretching into the clearance between air purification device 2 and the collection petticoat pipe 12 and then cleans through burnisher.

With continued reference to fig. 1 and 2, in an embodiment, a dimension extending in the left-right direction of the air purification apparatus 2 is defined as a, and a dimension extending in the left-right direction of the fan guard 11 is defined as b, where a/b is greater than or equal to 0.5 and less than or equal to 1. C is defined as the size of the air purification device 2 extending in the vertical direction, d is defined as the size of the fan cover 11 extending in the vertical direction, wherein c/d is more than or equal to 0.25 and less than or equal to 1, e is defined as the size of the air purification device 2 extending in the front-back direction, f is defined as the size of the fan cover 11 extending in the front-back direction, and e/f is more than or equal to 0.12 and less than or equal to 0.38. This application sets up through above parameter for under the condition of the cigarette machine main part 1 that makes in the range hood adopts current general size, through the proportion relation of air purification device 2 and cigarette machine main part 1, make air purification device 2 have sufficient inner structure installation space, so can make air purification device 2's power design can obtain the maximize, so the design, the experiment proves that can make the air output of air purification device 2 of this application reach and be not less than 80cmh (≧ 80m3/h), when satisfying air purification, also be favorable to the noise reduction, the experiment proves, so the design, can make the noise sound power level of air purification device 2 of this application be not higher than 58dB (A) (≦ 58dB (A)).

Referring to fig. 2 to 5, in an embodiment of the present invention, the air purification apparatus 2 includes a purification housing 21, a wind wheel 26, a driving motor 27 and a filter 28, the purification housing 21 includes a purification housing 22 and a volute component 23, the volute component 23 is installed in the purification housing 22, the purification housing 22 and the volute component 23 are formed with a purification air channel in a matching manner, wherein the purification housing 22 is provided with an air inlet 221 communicated with the purification air channel, the volute component 23 includes a cover plate 25 and a volute main body 24, the cover plate 25 is provided with an air inlet 251 and an air outlet 252 communicated with the purification air channel, the filter 28 is disposed between the air inlet 221 and the volute component 23, the wind wheel 26 is installed in the volute component 23, the driving motor 27 drives the wind wheel 26 to rotate in the volute component 23, the wind wheel 26 is preferably a centrifugal wind wheel, the centrifugal wind wheel has advantages of small installation volume and large power, of course, the wind wheel 26 may also be, for example, an axial flow wind wheel, a cross flow wind wheel, etc., without limitation. The driving motor 27 drives the external air flow through the wind wheel 26 to enter the purifying air duct from the air inlet 221, and the air enters the volute component 28 after being filtered by the filter component 28 and then is discharged outside from the air outlet 252.

For the installation of the air purification device 2, one of the air purification device 2 and the fan guard 11 may be provided with a positioning concave portion 111, and the other one of the air purification device 2 and the fan guard 11 is provided with a positioning convex portion 222, so that the positioning can be realized by the cooperation of the positioning concave portion 111 and the positioning convex portion 222, the air purification device 2 can be detachably installed on the cigarette machine body 1, and can be installed on the cigarette machine body 1 by adopting one or more detachable structures such as but not limited to a screw locking structure, a buckling structure and the like, so as to facilitate the maintenance and the disassembly of the air purification device 2. Optionally, the front lower portion, middle portion and upper portion of the fan guard 11 are respectively provided with a detachable mounting position for selectively mounting the purifying housing 22, so that the user can conveniently change the upper and lower positions of the air purifying device 2 according to different air purifying requirements. According to the cigarette making machine, the air purification device 2 is arranged outside the fan cover 11 of the cigarette making machine main body 1, so that when parts (such as the filter piece 28) of the air purification device 2 are replaced or the air purification device 2 is maintained, the cigarette making machine main body 1 does not need to be assembled and disassembled in a large range, and the cigarette making machine is more convenient; in addition, the air purification device 2 can be installed on the range hood main body 1 after being modularized and independently assembled, and the assembly efficiency of the range hood can be improved.

The range hood main body 1 is provided with a range hood air duct extending from the range hood 12 to the fan hood 11, a smoke inlet of the range hood air duct is arranged in the range hood 12, the smoke inlet is communicated with the indoor and is usually suspended above a kitchen range so as to suck the oil smoke into the range hood air duct; the smoke outlet of the oil smoke suction duct is arranged at the upper end of the fan cover 11 and is communicated with the outside through a smoke discharge pipeline so as to discharge oil smoke to the outside; of course, the smoke exhaust machine body 1 is further provided with an oil smoke fan which is arranged in the fan cover 11 and used for enabling air flow to 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 purification duct and the oil smoke absorption duct are independent from each other, the air inlet 221 and the air outlet 252 are both communicated with each other indoors, in the operation process, the air inlet 221 is used for sucking air in a kitchen, the filtering piece 28 is used for filtering and purifying the sucked air, and the air outlet 252 is used for discharging the filtered and purified air back to the kitchen. When the air purification device 2 and the smoke ventilator main body 1 work cooperatively, most of the oil smoke generated in the cooking process is discharged to the outside through the oil smoke suction air duct in the smoke ventilator main body 1, a small part of the oil smoke can escape to other spaces in a kitchen, and the small part of the 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; on the other hand the utility model discloses power device who uses in air purification device 2 is to centrifugal wind wheel 26 behind, it is big to utilize the negative pressure that produces in the centrifugal wind wheel 26 start-up process behind, power is big, supply-air outlet 132 department wind zone is even, multiple advantage such as noise is little, then in kitchen environment, air purification device 2 can the high efficiency adsorb the oil smoke that escapes to the environment, and can be with the clear air after the filtration comparatively even gentle blowing to the user, be favorable to carrying the air after purifying to user respiratory region, thereby be favorable to improving the air quality of user respiratory region, reduce the probability that the user inhales the oil smoke, reduce the harm of oil smoke to user health.

Optionally, the air outlet direction of the air outlet 252 is adjustable, so that more air outlet requirements of the user on the air purification device 2 can be met by changing the air outlet direction, for example, the requirements of users with different heights for direct blowing or non-direct blowing are met.

In an embodiment, referring to fig. 5, an adjustable inclination angle β with a lower opening is formed between the air outlet direction of the air outlet 252 and a vertical surface, and the adjustable inclination angle β is not less than 30 ° and does not exceed 75 °, so that the air outlet direction of the air outlet 252 has a wider adjustment range, and can meet the requirements of more working conditions. The air outlet 252 of the present application is disposed at the bottom of the purifying housing 21, closer to the smoke collecting hood 12, and in combination with the above, the distance between the air purifying device 2 of the present application and the smoke collecting hood 12 is 0 to 10 cm, and the hood 12 is more projected in the front-rear direction with respect to the air cleaning apparatus 2, part of the wall surface of the hood 12 can be used as a guide wall of the outlet port 252, the hood 12 is located at a height because in the head area of the user, the clear air purified by the air purifying device 2 can be directly blown toward the user along the upper surface of the hood 12, thus, the air purification device 2 can meet the requirements of users only by setting the upward adjusting angle, design like this can make overall structure compact, as a feasible mode, this application can be in air outlet 252 department install the wind-guiding grid so that the air-out angle of air outlet 252 is adjustable.

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 28 includes a HEPA filter (high efficiency air filter) and an activated carbon filter. The HEPA filter screen is mainly used for filtering particulate matters (liquid and solid) in oil smoke, the materials of the HEPA filter screen can comprise PP filter paper (polypropylene filter paper), glass fibers, PTFE filter paper (polytetrafluoroethylene filter paper), nano fibers, melt-blown polyester non-woven fabrics and the like, the HEPA filter screen has the advantages of being large in dust holding capacity and high in filter precision, the filter efficiency of the oil smoke particulate matters can exceed 90%, and the HEPA filter screen can be processed into required sizes and shapes according to machine type requirements. The active carbon filter screen is mainly used for filtering volatile organic compounds (smell) in the oil smoke, the material of the active carbon filter screen can comprise active carbon fiber, active carbon particles and the like, the adopted active carbon material can be coconut shell, fruit shell, coal carbon and the like, the specific surface area of the material is larger, or the adopted active carbon material can be molecular sieve material, and the material has better adsorption effect. Optionally, in the air current direction, the HEPA filter screen is located active carbon filter screen upper reaches, so, can avoid the particulate matter in the oil smoke to attach on active carbon filter screen to the life of extension active carbon filter screen.

In one embodiment, for convenience of use, the purification housing 22 is provided with a filter mounting opening 223, and the filter element 28 is detachably mounted in the purification housing 22 through the filter mounting opening 223

In one embodiment, the air inlet 221 is disposed on opposite sides of the purification housing 22, and optionally, two filter elements 28 are disposed, each filter element 28 being disposed adjacent to one of the air inlet 221.

Referring to fig. 6 to 8 in combination, in an embodiment, the range hood body 1 further includes a decorative cover 13, the decorative cover 13 is disposed outside the fan guard 11 and above the smoke collecting hood 12, and the decorative cover 13 is connected to the fan guard 11.

The present application preferably places the outlet 252 on the front face of the purification enclosure 22 as well. The air purification device 2 is accommodated between the decoration cover 13 and the cigarette machine body 1, the decoration cover 13 is provided with the air return opening 131 corresponding to the air inlet 221 and the air supply opening 132 corresponding to the air outlet 252, and therefore the air purification device 2 is covered and hidden through the arrangement of the decoration cover 13, so that oil smoke in a kitchen environment is not prone to falling onto the surface of the air purification device 2, and the service time of the air purification device 2 can be prolonged.

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. In some embodiments, 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.

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.

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

Claims

1. A range hood, comprising:

2. The range hood according to claim 1, wherein the distance h between the air cleaning device and the hood is 5 cm to 8 cm.

3. The range hood according to claim 1, wherein a dimension extending in the left-right direction of the air cleaning device is defined as a, a dimension extending in the left-right direction of the fan cover is defined as b, and a/b is greater than or equal to 0.5 and less than or equal to 1.

4. The range hood according to claim 1, wherein a dimension extending in the vertical direction of the air cleaning device is defined as c, a dimension extending in the vertical direction of the fan guard is defined as d, and c/d is greater than or equal to 0.25 and less than or equal to 1.

5. The range hood of claim 1, wherein a dimension extending in a front-to-back direction of the air cleaning device is defined as e, and a dimension extending in a front-to-back direction of the fan guard is defined as f, wherein e/f is greater than or equal to 0.12 and less than or equal to 0.38.

6. The range hood according to any one of claims 1 to 5, wherein the air purification device comprises a purification housing connected to the fan guard, a filter element and a purification fan disposed in the purification housing, the purification housing is provided with an air inlet and an air outlet, the filter element and the purification fan are both disposed between the air inlet and the air outlet, and the air outlet is disposed on a front surface of the purification housing.

7. The range hood of claim 6, wherein the outlet air direction of the outlet is adjustable.

8. The range hood according to claim 7, wherein an adjustable inclination angle with an upper opening is formed between the air outlet direction of the air outlet and the upper surface of the fume collecting hood, and the adjustable inclination angle is not less than 30 degrees and not more than 75 degrees.

9. The range hood of claim 6 wherein the air inlet is disposed in a side of the clean-up enclosure.

10. The range hood of claim 9 wherein the air inlets are disposed on opposite sides of the clean-up enclosure.

11. The range hood of claim 6 wherein the purification housing defines a filter mounting opening through which the filter element is removably mounted within the purification housing.