CN107218677B

CN107218677B - Cooling fan

Info

Publication number: CN107218677B
Application number: CN201610164701.8A
Authority: CN
Inventors: 谭谦豪; 李刚毅; 曾静
Original assignee: Panasonic Ecology Systems Guangdong Co Ltd
Current assignee: Panasonic Ecology Systems Guangdong Co Ltd
Priority date: 2016-03-22
Filing date: 2016-03-22
Publication date: 2021-06-04
Anticipated expiration: 2036-03-22
Also published as: CN107218677A

Abstract

A cooling fan, comprising: the casing that is equipped with air intake and air outlet, set up in fan in the casing, set up in the air intake with humidification device between the fan, humidification device with be equipped with the humidification filter screen that adsorbs moisture in the wind path between the inlet scoop of fan, the humidification filter screen slope is placed. The invention has the advantages of improving the cooling effect and improving the use comfort.

Description

Cooling fan

Technical Field

The invention relates to a cooling fan, in particular to an evaporative cooling fan.

Background

A cooling fan, also called an air conditioning fan, is an air conditioning device which uses the principle of water evaporation to ventilate, humidify and cool indoor air.

When the thermantidote during operation, in the fan in the thermantidote with the air suction thermantidote in the environment, during the humidification device in the thermantidote of air current flow, water among the humidification device absorbs the heat from the air and accomplishes the vaporization, and the heat in the air is absorbed, and air humidity increases simultaneously to reach cooling, humidification effect.

No matter what structure is adopted by the humidifying device, when the wind power of the fan is large enough, the water of the humidifying device can be blown out along with the air in a state of incomplete vaporization, namely, the air blown out by the cooling fan can contain large-particle water drops. Thus not only weakening the cooling effect, but also bringing discomfort to the user.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a cooling fan capable of improving a cooling effect.

In order to achieve the above object, the present invention provides a cooling fan, comprising: the casing that is equipped with air intake and air outlet, set up in fan in the casing, set up in the air intake with humidification device between the fan, humidification device with be equipped with the humidification filter screen that adsorbs moisture in the wind path between the inlet scoop of fan, the humidification filter screen slope is placed.

The invention has the advantages of improving the cooling effect and improving the use comfort.

Drawings

FIG. 1 is an internal perspective view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is a schematic view of a humidifying breaking unit of an embodiment of the present invention.

Detailed Description

FIG. 1 is an internal perspective view of an embodiment of the present invention; fig. 2 is a cross-sectional view of an embodiment of the present invention.

As shown in fig. 1 and fig. 2, a cooling fan 10 according to an embodiment of the present invention includes: the air conditioner comprises a shell 20 provided with an air inlet 21 and an air outlet 22, a fan 23 arranged in the shell 20, and a humidifying device 24 arranged between the air inlet 21 and the fan 23, wherein a humidifying filter screen 30 for absorbing moisture is arranged in an air path between the humidifying device 24 and an air inlet 230 of the fan 23, and the humidifying filter screen 30 is obliquely arranged.

The humidification filter 30 is made of a material capable of adsorbing moisture. When the cooling fan 10 works, under the action of the fan 23, high-temperature air enters the casing 20 from the air inlet 21 of the casing 20, passes through the humidifying device 24, is absorbed by water in the humidifying device 24, passes through the humidifying filter screen 30, and is blown out through the air outlet 22 of the casing 20 after passing through the fan 23. By providing the humidification filter 30 between the humidification device 24 and the air inlet 230 of the fan 23, even if water droplets are blown out from the humidification device 24, the water droplets are blocked by the humidification filter 30 and cannot be blown out to the fan 23. And along with the operation of thermantidote 10, humidification filter screen 30 is stained with the moisture gradually, and when the air passed humidification filter screen 30, the heat in the air can be absorbed once more to the water in humidification filter screen 30, reaches the effect of secondary cooling.

A square installation space 40 (shown by a dotted line in fig. 2) where the humidification filter screen 30 is installed is formed between the humidification device 24 and the air suction opening 230 of the fan 23, and the humidification filter screen 30 is obliquely arranged along a diagonal line of the installation space 40.

Because the space is limited, if the humidifying filter screen 30 is obliquely arranged, the height of the humidifying filter screen 30 can be prolonged as much as possible in the limited space, so that the area of the humidifying filter screen 30 is enlarged, and the area of the humidifying filter screen 30 is maximized. The water that humidification filter screen 30 adsorbs is more like this, and the area of contact of air and humidification filter screen 30 also increases, and the air is more by the absorptive heat of water in the humidification filter screen 30, and the effect of secondary cooling is better.

The air inlet 21 of the casing 20 is located on the first side wall 25 in the vertical direction of the casing 20, the blower 23 is arranged inside the casing 20 and on the opposite side of the first side wall 25, the humidifying filter screen 30 is inclined downwards from the air inlet 21 side of the casing 20 to the air suction opening 230 side of the blower 23, and the lower end of the humidifying filter screen 30 is in contact with the surface where the air suction opening 230 of the blower 23 is located.

The humidification filter screen 30 inclines downwards from the air inlet 21 side of the housing 20 to the air inlet 230 side of the fan 23, and the lower end of the humidification filter screen 30 contacts with the surface where the air inlet 21 of the fan 23 is located, so that the air inlet 230 of the fan 23 can be shielded even if the humidification filter screen 30 is arranged in a vertical direction in a deviation manner, and air is prevented from being directly blown to the air inlet 230 of the fan 23 without passing through the humidification filter screen 30. On the other hand, if the humidification filter 30 is disposed to be deviated in the vertical direction, the width of the housing 20 can be reduced, and the size of the product can be reduced.

In addition, the air inlet 21 of the casing 20 is located on the first side wall 25 in the vertical direction of the casing 20, and when the humidification filter screen 30 is inclined toward the vertical direction, air entering the casing 20 from the air inlet 21 of the casing 20 can more uniformly and smoothly pass through the humidification filter screen 30, so that the cooling effect is improved.

Fig. 3 is a schematic view of a humidifying breaking unit of an embodiment of the present invention. As shown in fig. 3, the humidifying device 24 is a humidifying breaking unit 50, and the humidifying breaking unit 50 includes: the humidifying device comprises a water storage part 51 provided at the lower part for storing water, a humidifying part 52 provided at the upper part for sucking up the water stored in the water storage part 51 and spraying the water, a crushing part 53 provided around the humidifying part 52 and having a plurality of ribs 54, and a humidifying part driving part 56 for rotating the humidifying part 52.

When the humidifying unit drive unit 56 is activated and the humidifying unit 52 rotates at a high speed, the water stored in the water reservoir 51 below the humidifying unit 52 is sucked up along the humidifying unit 52, passes through the holes 55 in the wall of the humidifying unit 52, and is sprayed as droplets. The small water droplets discharged from the humidifying unit 52 collide with the ribs 54 of the crushing unit 53 to form fine water droplets. When the cooling fan 10 works, under the action of the fan 23, air passes through the humidifying and crushing unit 50 and contacts with the fine water drops, on one hand, the air and the water have temperature difference, so that heat exchange can be carried out after the air and the water contact; on the other hand, evaporation occurs on the surface of the water, drawing heat from the surrounding air. Since the water is broken into fine water droplets, the surface area of the water increases, the contact area with the air increases, and the heat exchange between the water and the air is more sufficient. In addition, the contact area between water and air is increased, the contact between water molecules and air molecules is increased, and the evaporation speed of water is increased. Thus, the fine water droplets absorb more heat per unit time than the large water droplets, and the more heat absorbed, the more the air is cooled. Therefore, the method of breaking water into fine water droplets is lower in temperature than the wind obtained by the cooling method of wetting the wet curtain with water only, i.e., the cooling effect is improved.

As shown in fig. 1 and 2, the humidifying and crushing unit 50 is disposed at a lower portion in the housing 20, and the humidifying filter screen 30 is located above the humidifying and crushing unit 50 and located at a side of the fan 23 in the horizontal direction.

The total volume of the humidifying crushing unit 50 is small, and the air inlet 21 of the housing 20 is generally set large in order to secure the air inlet area of the housing 20. Therefore, the air introduced into the housing 20 from the air inlet 21 of the housing 20 cannot entirely pass through the humidifying crushing unit 50. By arranging the humidifying filter screen 30 above the humidifying and crushing unit 50, a small part of the air which does not pass through the humidifying and crushing unit 50 can pass through the humidifying filter screen 30, and the part of the air is in contact with the water in the humidifying filter screen 30 to play a role in cooling.

When the humidification screen 30 is positioned above the humidification crushing unit 50, water droplets blown out from the humidification crushing unit 50 collide with the humidification screen 30, and water is concentrated on the lower portion of the humidification screen 30 than on the upper portion of the humidification screen 30. Through setting up humidification filter screen 30 slope, avoid moisture to concentrate near the lower extreme of humidification filter screen 30, make moisture can distribute in humidification filter screen 30's wider scope to make air and moisture contact more in humidification filter screen 30, improve the cooling effect.

The lower end of the humidifying filter screen 30 is positioned on the upper side of the humidifying and crushing unit 50 close to the fan 23. That is, the entire humidification filter 30 is not positioned directly above the humidification crushing unit 50, but is provided offset to the fan 23 side. With the above configuration, the lower end of the humidification screen 30 avoids the air outlet 501 of the humidification crushing unit 50, and avoids blocking the air outlet 501 of the humidification crushing unit 50, and it is ensured that all the air (with large water droplets) passing through the humidification screen 50 can pass through the humidification screen 30 and then enter the fan 23.

Claims

1. A cooling fan, comprising: the humidifying device is characterized in that a humidifying filter screen for absorbing moisture is arranged in a wind path between the humidifying device and an air suction opening of the fan, and the humidifying filter screen is obliquely arranged;

the humidifying filter screen is inclined downwards from the air inlet side of the shell to the air suction side of the fan, and is positioned above the humidifying and crushing unit;

the humidifying device is a humidifying and crushing unit which is arranged at the lower part in the shell;

the air outlet of the shell is positioned at the upper part of the shell and is higher than the humidifying filter screen.

2. The cooling fan according to claim 1, characterized in that: this humidification crushing unit includes: the humidifier comprises a water storage part arranged at the lower part for storing water, a humidifying part arranged at the upper part for absorbing the water stored in the water storage part and spraying, a crushing part arranged at the periphery of the humidifying part and provided with a plurality of ribs, and a humidifying part driving part for rotating the humidifying part.

3. The cooling fan according to claim 2, characterized in that: the casing air intake is located on the ascending first lateral wall of casing vertical direction, the fan set up in inside the casing the offside of first lateral wall, the lower extreme of humidification filter screen with the face contact at fan inlet scoop place.

4. The cooling fan according to claim 2, characterized in that: the casing air intake is located on the ascending first lateral wall of casing vertical direction, the humidification filter screen is located still is located the ascending side of horizontal direction of fan.

5. The cooling fan according to claim 4, characterized in that: the lower end of the humidifying filter screen is positioned on one side, close to the fan, of the upper part of the humidifying crushing unit.

6. The cooling fan according to claim 1, characterized in that: the humidifying device with form between the inlet scoop of fan the square installation space of humidification filter screen installation, the humidification filter screen is followed the diagonal slope setting of installation space.