CN112524656A

CN112524656A - Fume exhauster

Info

Publication number: CN112524656A
Application number: CN201910874808.5A
Authority: CN
Inventors: 杨鹏; 高士君; 孟永哲; 王常志
Original assignee: Qingdao Haier Intelligent Cooking Appliances Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Intelligent Cooking Appliances Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2021-03-19

Abstract

The invention relates to the technical field of household appliances, in particular to a range hood. The range hood includes a main body, a display screen is arranged on the front side of the main body, a cooling air duct is arranged on the back of the display screen in the main body, and the cooling air duct is connected to a first heat dissipation air duct arranged above the display screen. The air outlet is connected, and the first air outlet extends along the length direction of the display screen to form an air curtain covering the display screen. When the display screen in the range hood is working, the heat dissipation air path on the back of the display screen can carry the heat generated by the display screen, and discharge the heat through the first air outlet to improve the heat dissipation effect of the display screen; The gas can form an air curtain covering the surface of the display screen. The air curtain can block the oil fume and water vapor, and prevent the oil fume and water vapor from contacting the display screen upwards, thereby ensuring the display effect of the display screen and the service life of the electrical components.

Description

Fume exhauster

Technical Field

The invention relates to the technical field of household appliances, in particular to a range hood.

Background

The range hood is widely used as an electric appliance for purifying air in a household kitchen at present. The range hood further sucks the oil smoke into the range hood and discharges the oil smoke to the outside by forming a negative pressure area near the smoke collection cavity.

At present, part of range hoods are provided with display screens, and video or video communication can be watched. For the range hood with the display screen, as the working environment is a kitchen and the oil smoke and water vapor in the kitchen are large, the display effect of the display screen and the service life of electric devices are easily influenced. Meanwhile, because the mounting position of the range hood is close to the cooking range, the temperature is very high during cooking, and the heat dissipation of the display screen is poor.

Therefore, a range hood is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a range hood which can improve the heat dissipation of a display screen and can prevent the display screen from being interfered by oil smoke or water vapor.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a range hood, includes the body, the front side of body is provided with the display screen, this internal in the back of display screen is provided with the heat dissipation wind path, the heat dissipation wind path with set up in the first air outlet intercommunication of display screen top, first air outlet is followed the length direction of display screen extends, in order to form the cover the display screen air curtain.

The body is provided with a second air outlet below the display screen, and the second air outlet is communicated with the cooling air path and extends along the length direction of the display screen to form an air curtain.

Wherein, the air-out direction of first air outlet with contained angle alpha between the display screen satisfies:

α≤180°。

wherein, the air-out direction of first air outlet with the contained angle alpha between the display screen is 90.

The bottom surface of the second air outlet is an air guide surface which is obliquely arranged along the air outlet direction.

The air guide surface is an inclined surface or a curved surface.

Wherein the inclination angle of the bottom surface of the first air outlet is 5-35 degrees.

Wherein, the display screen is the front panel of body.

Wherein, the lampblack absorber still includes:

and the heat dissipation air path is provided with the axial flow fan at the position corresponding to the first air outlet and the second air outlet.

The length of the first air outlet and the length of the second air outlet are not smaller than the length of the display screen.

Has the advantages that: the invention provides a range hood. When the display screen in the range hood works, the heat dissipation wind path on the back of the display screen can carry heat generated by the display screen during working, and the heat is discharged from the first air outlet, so that the heat dissipation effect of the display screen is improved; the gas of first air outlet combustion gas can form and cover display screen surface air curtain, and oil smoke and steam can be blocked to the air curtain, avoids oil smoke and steam upwards to contact with the display screen to guarantee the display effect of display screen and the life of electrical part.

Drawings

Fig. 1 is a schematic structural diagram of a range hood provided in the first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a range hood provided by the second embodiment of the present invention.

Wherein:

1. a body; 11. an air inlet; 2. a display screen; 21. a first air outlet; 22. a second air outlet; 221. an air guide surface; 3. an axial flow fan.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

As shown in fig. 1, this embodiment provides a range hood, including body 1, be provided with the collection smoke chamber on body 1, be provided with smoke exhaust channel and negative pressure generating device in the body 1. The smoke collecting cavity is communicated with the smoke exhaust channel inside the body 1, and the negative pressure generating device can enable the smoke collecting cavity to form negative pressure so as to suck the oil smoke near the smoke collecting cavity into the smoke exhaust channel.

For making the lampblack absorber can better satisfy user's demand, the lampblack absorber still includes display screen 2, and display screen 2 can set up the front side at body 1. Through setting up display screen 2, the user can be in the kitchen the video and audio of watching, or through networking and mobile terminal video communication.

To facilitate the user to watch video or video communication, the display screen 2 may be large in size, for example, to cover the entire front panel of the body 1. The image display can be clearer by increasing the size of the display screen 2, and the use experience of a user is improved.

For the structure of simplifying the lampblack absorber, in this embodiment, display screen 2 can regard as the front panel of body 1 to use, can reduce the part quantity of lampblack absorber, can reduce cost, reduces the size of lampblack absorber relatively.

Because the size of display screen 2 has been increased for the heat that display screen 2 produced in the course of the work is more, and display screen 2 is nearer with the top of a kitchen range distance, and display screen 2's operational environment temperature is high, greatly influences the heat dissipation, and this is the all less important reason of display screen size among the prior art.

In order to solve the above problem, a heat dissipation air path is provided on the back of the display screen 2 in the main body 1. The cooling air path is communicated with the air inlet 11 and the air outlet on the body 1, so that air flow can circularly flow to dissipate heat of the display screen 2. Optionally, the air inlet 11 may be disposed on the top surface of the body 1 to prevent oil smoke or water vapor from being absorbed in the heat dissipation air path, thereby ensuring normal operation of the range hood.

Optionally, the heat dissipation air path may be a serpentine air path and is laid on the back of the display screen 2, so as to improve the heat dissipation effect of the display screen 2.

Because oil smoke and steam in the kitchen are more, display screen 2 contacts with oil smoke and steam for a long time, not only makes the surface attachment greasy dirt of display screen 2, is difficult to the clearance, influences the display effect of display screen 2 and the life of electrical part moreover easily, greatly influences the quality of product and customer's use experience.

In order to solve the above problem, the air outlet may include a first air outlet 21 disposed on the body 1 and located above the display screen 2, the first air outlet 21 is communicated with the cooling air path and extends along the length direction of the display screen 2, and the air flow discharged from the first air outlet 21 can flow downward along the vertical direction to form an air curtain covering the display screen 2.

In this embodiment, through setting up first air outlet 21, can form one deck air current protective layer on the surface of display screen 2, block the contact of oil smoke or steam and display screen 2, guarantee display effect and the life of electrical part that can be better.

Optionally, the first air outlet 21 is a narrow slit, which is beneficial for forming an air curtain. The length of the first air outlet 21 is not less than the length of the display screen 2, so as to completely cover the display screen 2.

Optionally, the body 1 may further be provided with a first air curtain device at a position corresponding to the first air outlet 21, and the first air curtain device may adjust the airflow strength of the formed air curtain to better meet the use requirement.

To facilitate the arrangement of the first outlet 21, the first outlet 21 may face the front side of the display screen 2. In order to enable the air curtain generated by the first air outlet 21 to better cover the surface of the display screen 2, the display screen 2 further comprises an air deflector arranged on the front side of the first air outlet 21, the air deflector is vertically arranged and has a certain distance with the first air outlet 21, and the flow direction of the air flow generated by the first air outlet 21 can be changed under the action of the air deflector, so that the air flow generated by the first air outlet 21 flows along the vertical direction, and the display screen 2 is better covered.

Optionally, the air deflector may be inclined from top to bottom toward the display screen 2, so that the air curtain formed by the first air outlet 21 is better attached to the surface of the display screen 2.

Alternatively, the air deflector may be a flat plate or a curved plate as long as the air deflector can guide the air flow to flow along the vertical direction.

Optionally, the range hood further includes an axial flow fan 3, and the axial flow fan 3 may be disposed in the heat dissipation air path and at a position corresponding to the first air outlet 21, so as to facilitate improvement of strength of the air curtain of the stroke.

Example two

As shown in fig. 2, the present embodiment provides a range hood, which is different from the first embodiment in that the air outlet may further include a second air outlet 22 disposed below the display screen 2, and the second air outlet 22 extends along the length direction of the display screen 2, so that the discharged air flow forms an air curtain. The second air outlet 22 is a narrow slit, which is beneficial to forming an air curtain.

In this embodiment, the air curtain formed by the second air outlet 22 can further block oil smoke and water vapor from rising, and prevent the oil smoke and the water vapor from upwards contacting the display screen 2, thereby ensuring the display effect of the display screen 2 and the service life of the electric device.

Through the matching of the second air outlet 22 and the first air outlet 21, the air curtain generated by the second air outlet 22 can separate the display screen 2 from oil smoke, water vapor and the like; the air curtain generated by the first air outlet 21 can be attached to the outside of the display screen 2, so that a small amount of the display screen 2 is further prevented from contacting with oil smoke, water vapor and the like.

Optionally, the body 1 may further be provided with a second air curtain device at a position corresponding to the second air outlet 22, and the second air curtain device may adjust the airflow strength of the formed air curtain to better meet the use requirement.

In order to better prevent oil smoke and water vapor from upwards contacting the display screen 2, the included angle α between the air outlet direction of the second air outlet 22 and the display screen 2 can satisfy the following conditions: alpha is less than or equal to 180 degrees.

The air curtain that produces in this angle range can be with oil smoke and steam restriction between the wall of air curtain and installation lampblack absorber, not only can avoid oil smoke and steam and display screen 2 contacts, can also avoid oil smoke and steam diffusion to guarantee that the user does not receive the interference of oil smoke and steam.

Optionally, the included angle α may be greater than or equal to 120 ° and less than or equal to 180 °, and within this angle range, the air curtain may be prevented from directly contacting the face of the user when the user cooks.

Optionally, the included angle α may be greater than or equal to 0 ° and less than or equal to 90 °, and in this angle range, the contact between the diffused oil smoke or water vapor and the display screen 2 may be avoided.

In this embodiment, an included angle α between the air outlet direction of the second air outlet 22 and the display screen 2 is 90 °. This angle can make the interior thermal gas that carries of cooling wind path flow to the direction of keeping away from display screen 2 and top of a kitchen range on the one hand, avoids near the ambient temperature rise of lampblack absorber, and on the other hand can blow away the oil smoke and the steam that rise, avoids its and the contact of display screen 2.

To prevent oil smoke and water vapor from diffusing, the bottom surface of the second air outlet 22 may be a wind guide surface 221 inclined downward along the air outlet direction. When the air current was discharged through second air outlet 22, will incline to the inboard of lampblack absorber under the guide effect of the bottom surface of second air outlet 22 to with oil smoke and steam restriction between air curtain and wall, avoid its diffusion, be favorable to improving the suction effect of lampblack absorber to oil smoke and steam.

Optionally, the air guiding surface 221 of the second air outlet 22 is an inclined surface or a curved surface, and both can achieve a flow guiding effect.

Optionally, the inclination angle of the air guide surface 221 of the second air outlet 22 is 5 ° to 35 °. Within this angular range, the guiding action is better. When the bottom surface of the second air outlet 22 is a curved surface, the included angle between the time limit direction of one end of the curved surface close to the inner side of the body 1 and the horizontal plane is 5-35 degrees.

Optionally, the range hood further includes an axial flow fan 3, and the axial flow fan 3 may be disposed in the cooling air path and at a position corresponding to the second air outlet 22, so as to facilitate improvement of strength of the air curtain of the stroke.

Optionally, the length of the second air outlet 22 is not less than the length of the display screen 2, so as to better isolate oil smoke and water vapor.

In other embodiments, the range hood may be provided with the second air outlet 22 communicating with the cooling air duct below the display screen 2, and may also avoid the display screen 2 from contacting with oil smoke, water vapor, and the like to a certain extent.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The utility model provides a range hood, its characterized in that, includes body (1), the front side of body (1) is provided with display screen (2), be in body (1) in the back of display screen (2) is provided with the heat dissipation wind path, the heat dissipation wind path with set up in first air outlet (21) intercommunication of display screen (2) top, first air outlet (21) are followed the length direction of display screen (2) extends to form the cover display screen (2) air curtain.

2. A range hood as claimed in claim 1, wherein the body (1) is provided with a second air outlet (22) below the display screen (2), and the second air outlet (22) is communicated with the cooling air duct and extends along the length direction of the display screen (2) to form an air curtain.

3. A range hood according to claim 2, wherein the angle α between the air outlet direction of the second air outlet (22) and the display screen (2) satisfies:

α≤180°。

4. a range hood as claimed in claim 3, wherein the angle α between the air outlet direction of the second air outlet (22) and the display screen (2) is 90 °.

5. A range hood as claimed in claim 4, wherein the bottom surface of the second air outlet (22) is a wind guide surface (221) which is arranged in a downward inclination along the wind outlet direction.

6. A range hood as set forth in claim 5, characterized in that said air guide surface (221) is an inclined surface or a curved surface.

7. A range hood as set forth in claim 5, characterized in that the angle of inclination of said air guide surface (221) is 5 ° -35 °.

8. A range hood as claimed in any of claims 1 to 7, characterized in that the display screen (2) is the front panel of the body (1).

9. A range hood as claimed in any one of claims 2 to 7, further comprising:

and the axial flow fan (3) is arranged at the position of the heat dissipation air path corresponding to the second air outlet (22) and the first air outlet (21).

10. A hood as claimed in any one of claims 2 to 7, characterized in that neither the second outlet mouth (22) nor the first outlet mouth (21) is shorter than the display screen (2).