JPH07286741A - Vaporizer for cold air fan - Google Patents

Abstract

PURPOSE:To sufficiently vaporize atomized water and to obtain sufficient cooling effect by providing a filter for adhering water of atomized state mixed with the air flowing in a body case to flow and capturing it at a downstream side of an ultrasonic unit along an air flowing direction by a fan. CONSTITUTION:The vaporizer for a cold air fan comprises filters 11, 12 provided in a body case 1 to capture water of atomized state mixed with the air flowing in a body case 1 to flow in such a manner that the one filter 11 is disposed at an upper position of a guide 10 and the other filter 12 is disposed at a front position of a fan 4. The water of the atomized state is adhered to the filters 11, 12, the air passes the filters 11, 12 adhered with the water to expedite vaporization of the water adhered to the filters 11, 12 so that heat of vaporization is derived from the air at this time, the air lowered at is temperature becomes a cold air to be blown from an outlet 7 out of the case 1. Thus, the vaporization of the water can be accelerated, and a cooling efficiency of the air blown out of the case can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling fan fan vaporizer.

[0002]

2. Description of the Related Art Conventionally, there are various types of cold air fans that cool the temperature of the air by removing the heat of vaporization of water from the air and blow the cooled air to the outside of the main body case. Some of them employ a method of atomizing water using an ultrasonic unit as disclosed in Japanese Utility Model Laid-Open No. 3-93322.

[0003]

[Problems to be Solved by the Invention] However, the actual Kaihei 3-9
As disclosed in Japanese Patent No. 3322, only by blowing the atomized water to the outside of the main body case in a state of being mixed with the air sucked from the outside, the atomized water is not sufficiently vaporized, which is sufficient. No cooling effect can be obtained. Moreover, atomized water adheres to the place where the air blown outside the main body directly hits and becomes wet, and if the blown air hits a person, it may cause discomfort to the person. Become.

There is also a great demand for the water to be vaporized by a simple structure which does not use an ultrasonic unit.

[0005]

The invention according to claim 1 is
A cool air fan having a fan for blowing outside air into the main body case and blowing the air outside, a water tank for storing water, and an ultrasonic unit for atomizing the water in the main body case. A filter for adhering and capturing water in an atomized state mixed with air flowing through the filter is provided on the downstream side of the ultrasonic unit along the blowing direction of the fan.

According to a second aspect of the present invention, a fan for blowing outside air into the main body case and then blowing the air outside, a water tank for storing water, and an ultrasonic unit for atomizing the water are provided in the main body case. In the cool air fan provided in the above, the ultrasonic unit is provided on the upstream side of the fan along the blowing direction of the fan, and the atomized water and the atomized state that are mixed and mixed with the air flowing in the main body case are provided. A filter for adhering and trapping water droplets was provided on the downstream side of the fan along the air blowing direction of the fan.

According to a third aspect of the present invention, there is provided a cool air fan having a fan for sucking external air into the main body case and then blowing the air outside, and a water tank for storing water. A filter for connecting to the water tank and having the other end opened toward the fan is provided, and a filter for adhering and capturing water droplets in a fine state mixed with air flowing in the main body case and blowing it is blown by the fan. Provided downstream of this fan along the direction.

According to a fourth aspect of the present invention, in the second or third aspect of the invention, a blower port through which the air blown by the fan flows is provided downstream of the fan along the blowing direction of the fan. A vaporization chamber having an opening area larger than the opening area of the mouth and containing a filter was connected to the blower opening.

[0009]

According to the first aspect of the invention, the water in the water tank is atomized by the ultrasonic unit, the air mixed with the atomized water is blown by the fan, and when the air passes through the filter, it is atomized. The liquefied water adheres to the filter and is captured. When water passes through the filter to which water is attached, the water attached is vaporized and the heat of vaporization is removed from the air. The air is blown outside the case.

In the second aspect of the invention, the water in the water tank is atomized by the ultrasonic unit, but water droplets blown up by the ultrasonic unit are also generated, and the air in which the atomized water and the water droplets are mixed is generated. Is blown by the fan. And
When the air passes through the fan, the water droplets are agitated by the fan to be atomized, and the air in which the atomized water droplets and the atomized water are mixed is blown by the fan to the downstream side in the air blowing direction of the fan. The water in the atomized state and the water droplets in the atomized state adhere to and are captured by the filter when passing through the filter located at. Then, when the air passes through the filter to which the water is attached, the attached water is vaporized and the heat of vaporization is removed from the air, and the air whose temperature is lowered by the heat of vaporization becomes cold air. Is blown outside the main body case.

According to the third aspect of the present invention, the water in the water tank is sent to the fan through the pipe, and the water is agitated by the fan to become water droplets in a fine state, and the water droplets in the fine state are converted into air. When the air is mixed and blown by a fan, and when this air passes through the filter, water droplets in a fine state adhere to the filter and are captured. Then, when the air passes through the filter to which the water is attached, the attached water is vaporized and the heat of vaporization is removed from the air, and the air whose temperature is lowered by removing the heat of vaporization becomes cold air. The air is blown outside the case.

According to the invention of claim 4, the opening area of the vaporization chamber accommodating the filter is larger than the opening area of the blower opening, so that the surface area of the filter can be increased and the resistance when the air passes through the filter is increased. The output of the fan required to secure a predetermined air volume is reduced, and the size and weight of the fan can be reduced and the power consumption can be reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention described in claim 1 will be described with reference to FIGS. First, a water tank 2 for storing water and an ultrasonic unit 3 for atomizing the water are provided in the main body case 1, and external air is further supplied to the main body case 1.
A fan 4 for sucking in and blowing the sucked air to the outside and a motor 5 for driving the fan 4 are provided. The main body case 1 is formed with a suction port 6 for sucking air into the main body case 1 and a blower port 7 for blowing the sucked air to the outside. Is connected to a flexible pipe 8 whose air flow direction can be arbitrarily adjusted.

An air filter 9 for removing dust and dirt in the air sucked into the body case 1 is provided at the suction port 6.
Is installed. Further, at a position above the ultrasonic unit 3 in the water tank 2, a guide 10 for guiding the atomized water by driving the ultrasonic unit 3 upward.
Is provided. And, in the main body case 1,
Filters 11 and 12 are provided for trapping atomized water mixed with air flowing in the main body case 1 and flowing. It should be noted that one filter 11 is disposed above the guide 10 and the other filter 12 is disposed in the fan 4
It is located in the front position. In addition, these filters 11 and 12 are formed to have a density that allows air to pass therethrough and causes water mixed in the air to be attached and captured in an atomized state.

Next, at the position below the filter 12, a return hole 13 and a return pipe 14 are provided for returning the atomized water that has become water drops after adhering to the filter 12 into the water tank 2. Is provided. A float switch 15 for detecting the amount of water in the water tank 2 is provided in the water tank 2, and the float switch 15 detects that the amount of water in the water tank 2 is less than or equal to a set amount. In this case, a pump (not shown) installed in a separately provided water supply tank (not shown) is driven, and a water injection section for injecting water from this water supply tank into the water tank 2. 16 is attached to the main body case 1.

In such a structure, the main switch 17 provided on the upper surface of the main body case 1 is turned on.
In this case, the fan 4 is rotated by driving the motor 5 and the water in the water tank 2 is atomized by driving the ultrasonic unit 3. Immediately after the main switch 17 is turned on, the float switch 15 detects the amount of water in the water tank 2, and when the amount of water in the water tank 2 is less than a set amount, the pump is driven. Water is injected into the water tank 2 from the water supply tank, and after the water injection is completed, the motor 5 and the ultrasonic unit 3 are driven.

Next, when the fan 4 rotates, the outside air passes through the air filter 9 and is sucked into the main body case 1, and dust and dirt contained in the air are removed by the air filter 9. The air that has passed through the air filter 9 once enters the upper space of the water tank 2 as shown by the arrow, is mixed with atomized water, and then is filtered by the filters 11 and 12.
And is blown out of the main body case 1 through the blower opening 7.

When the air sucked into the main body case 1 and mixed with atomized water passes through the filter 11, a part of the atomized water adheres to the filter 11 and is captured.
Further, when the air mixed with the atomized water passes through the filter 12, the atomized water adheres to the filter 12 and is captured. Then, the atomized water is filtered by the filter 1.
Filters 1 and 1 attached to 1, 12 and this water attached
When the air passes through 2, the vaporization of the water adhering to the filters 11 and 12 is promoted. At this time, the heat of vaporization is removed from the air, and the air whose temperature has dropped due to the heat of vaporization is cooled and blown. The air is blown from the mouth 7 to the outside of the main body case 1.

Here, in the process of blowing the water atomized by the ultrasonic unit 3 in a state of being mixed with air, the filter 1
1, 12 and attach the attached water to the filter 11,
Since it is vaporized by the air passing through 12, the water is effectively vaporized, and the air blown from the blower port 7 is sufficiently cooled. Moreover, since the air sucked from the outside is once guided into the upper space of the water tank 2, all of the atomized water is mixed with the air sucked from the outside and flows to the filter 11, 12 side. All of the converted water can be effectively used for cooling the air. Furthermore, the atomized water contained in the air passes through the filters 11 and 12 in sequence, so that most of the water is filtered.
Since it adheres to and is captured by the cold air blown from the blower opening 7, almost no water in the atomized state is contained in the cool wind blown by the blower opening 7. It does not become wet and does not cause discomfort even when cold wind hits a person directly.

It should be noted that, of the water adhering to the filter 11, the water that has not been vaporized falls into the water tank 2 directly as water droplets, and the water that has adhered to the filter 12 is not vaporized as water droplets. Then, it returns to the inside of the water tank 2 through the return hole 13 and the return pipe 14.

Next, an embodiment of the invention according to claim 2 or 4 will be described with reference to FIG. The same parts as those described in FIGS. 1 and 2 are designated by the same reference numerals, and the description thereof will be omitted. First, the water tank 2 and the ultrasonic unit 3 are provided on the upstream side of the fan 4 along the blowing direction of the fan 4, and the main body case 1 has a fan along the blowing direction of the fan 4. 4, a blower port 7 is formed on the downstream side. A vaporization chamber 19 having an opening area larger than that of the ventilation port 7 and containing a filter 18 is connected to the ventilation port 7, and a flexible pipe 8 is connected to the vaporization chamber 19 to connect the flexible pipe 8 with the flexible pipe 8. A filter 20 is attached to the tip. The filters 18 and 20 are formed to have a density that allows air to pass therethrough and causes water in atomized state and water droplets in atomized state to be attached and captured.

In this structure, the ultrasonic unit 3 is driven to atomize the water in the water tank 2, and the atomized water is mixed with the air blown by the fan 4 to be blown. When the ultrasonic unit 3 is driven, water droplets blown up by the ultrasonic unit 3 are also generated, and the water droplets are also mixed with air and blown.

The air mixed with atomized water and water droplets is
The fan 4 blows air toward the blower port 7. When the air passes through the fan 4, the water in the form of water droplets mixed in the air is agitated by the fan 4 to be atomized. The water droplets that are agitated by the fan 4 and atomized and the water in the atomized state pass through the blower port 7 together with the air, and the vaporization chamber 19
The atomized water and atomized water droplets that flow into the inside adhere to and are captured by the filter 18 when passing through the filter 18. When the air passes through the filter 18 to which the water is attached, the attached water is vaporized and the heat of vaporization is removed from the air, and the temperature of the air passing through the filter 18 is lowered.

Here, the water atomized in the ultrasonic unit 3 adheres to the filter 18 and is vaporized, and the water droplets blown up by the ultrasonic unit 3 are generated by the fan 4.
Since it is agitated and finely pulverized and then adheres to the filter 18 and is vaporized, the amount of vaporized water is increased and the cooling efficiency can be further improved.

Further, since the opening area of the vaporizing chamber 19 is larger than the opening area of the blower port 7, the surface area of the filter 18 can be increased and the resistance of the air passing through the filter 18 is reduced, so that a predetermined air flow rate can be obtained. The output of the fan 4 required to secure the above becomes small. Therefore, fan 4
It is possible to reduce the size and weight of the device and to reduce the power consumption, which is convenient for carrying and it is possible to continuously use the battery for a long time when a battery is used as a power source.

The atomized water and the atomized water droplets that have passed through the filter 18 together with the air without being trapped by the filter 18 are trapped by the filter 20, and the filter 20 also vaporizes and passes the adhered water. The cooling air is cooled. Therefore, most of the atomized water and water droplets in the atomized state mixed in the air are captured by the filters 18 and 20 installed in two stages, and moisture is contained in the cold air blown from the tip of the flexible pipe 8. Is hardly contained, and even in places where the cold air directly hits, water does not adhere to the wet state, and even when the cold air directly hits the person, no discomfort is given.

Next, an embodiment of the invention according to claim 3 or 4 will be described with reference to FIG. The same parts as those described with reference to FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted. In this embodiment, a water tank 21 for storing water is attached to the upper part of the main body case 1, and
The ultrasonic unit 3 described in 1 is omitted. One end of a pipe 22 is connected to the water tank 21, and the other end of the pipe 22 is opened toward the fan 4. In addition, in the middle of the pipe 22, the water tank 2
A cock 23 that adjusts the amount of water to be sent from 1 is provided. Further, filters 18 and 20 are provided at the downstream side of the fan 4 along the blowing direction of the fan 4.

In such a structure, when the fan 4 is driven and the cock 23 is opened to send the water in the water tank 21 toward the fan 4, the water is agitated by the fan 4 and becomes water droplets in a fine state. The water droplets in the finely divided state are mixed with air and blown by the fan 4. Then, in the process in which the air mixed with the water droplets in the micronized state is blown by the fan 4, the water droplets in the micronized state are filtered,
20 is attached to and is captured by the filter 18, and water is attached to the filter 18,
When the air passes through 20, heat of vaporization is taken from the air, and the air from which the heat of vaporization is taken turns into cold air and blows out from the tip of the flexible pipe 8.

Here, in the cold air fan of this embodiment, the structure is simplified and the structure is inexpensive because the ultrasonic unit is not used. Furthermore, by attaching the water tank 21 to the outside of the main body case 1, it becomes possible to easily confirm the remaining amount of water and replenish water. Moreover, since the water tank 21 can have a completely closed structure, the water tank 2 can be used when the cold air fan is transported or moved.
Water leakage from 1 can be reliably prevented.

In this embodiment, the case where the water tank 21 is attached to the upper portion of the main body case 1 has been described as an example, but it may be attached to the side portion or the lower portion of the main body case 1 or provided separately. Good. Then, when the position of the water tank 21 is below the water discharge position toward the fan 4, water is discharged using a pump.

[0031]

As described above, according to the first aspect of the invention, a fan that blows outside air into the main body case and then blows it outside, a water tank that stores water, and an ultrasonic unit that atomizes the water. In the cool air fan provided in the main body case, a filter for adhering and capturing water in an atomized state mixed and mixed with air flowing in the main body case along the blowing direction by the fan Since it is installed on the downstream side of the unit, the water is vaporized when the air passes through the filter to which the water atomized by the ultrasonic unit adheres. It is possible to improve the cooling efficiency of the air that is blown, and in addition, when the atomized water mixed in the air adheres to the filter and is trapped, it is possible to cool the air that is blown outside the main case. The amount of atomized water that is entrapped is extremely small, and it has the effect of preventing moisture from adhering to a wet state even when it is directly hit by cold air blown outside the main body case. .

According to the second aspect of the present invention, as described above, the fan that blows the outside air into the main body case and then blows it outside, the water tank that stores the water, and the ultrasonic unit that atomizes the water are provided. In the cool air fan provided in the main body case, the ultrasonic unit is provided on the upstream side of the fan along the blowing direction of the fan, and the atomized water that is mixed with the air flowing in the main body case and flows. Since a filter for adhering and trapping water droplets in a fine state is provided on the downstream side of this fan along the blowing direction of the fan, when the ultrasonic unit is driven, the water is not only atomized but Water droplets blown up by the sound wave unit are also generated, but when the atomized water and the air mixed with water droplets pass through the fan, the water droplets are agitated by the fan to be atomized and finely divided. The water droplets and the atomized water adhere to the filter and are captured, and when the air passes through the filter to which the water adheres, the water is vaporized, so that the vaporization of water can be promoted and the main body The cooling efficiency of the air blown outside the case can be improved, and further, the amount of water vaporized can be increased by atomizing the water droplets by the fan, and the cooling efficiency can be further improved. In addition, atomized water mixed in the air and atomized water droplets adhere to the filter and are captured, so that the atomized water and minute water contained in the cool air blown outside the main body case The number of water droplets formed is extremely small, and it has the effect of preventing moisture from adhering to a wet state even in places where the cold air blown outside the body case directly hits. That.

According to the third aspect of the present invention, as described above, a cool air fan provided with a fan for sucking external air into the main body case and then blowing the air outside the main body case, and a water tank for storing water. In the above, a pipe having one end connected to the water tank and the other end opened toward the fan is provided, and a filter for adhering and capturing water droplets in a fine state mixed with air flowing in the main body case and trapped therein is provided. Since it is provided on the downstream side of the fan along the blowing direction of the fan, by feeding the water in the water tank to the fan through the pipe, the water is agitated by the fan and becomes water droplets in a finely divided state. When the air mixed with the water droplets in the atomized state is blown by the fan and passes through the filter, these water droplets in the atomized state adhere to the filter and are trapped. This water is vaporized when the air passes through the filter, so that the vaporization of water can be promoted and the cooling efficiency of the air blown outside the main body case can be improved. When the water droplets in the microscopic state adhere to the filter and are captured, the number of water droplets in the microscopic state contained in the cool air blown outside the main body case is very small, and the cool air blown outside the main body case is directly It is possible to prevent water from adhering to a wet state even at the contact part, and because it has a simple structure that forms water droplets in a fine state by sending water toward a fan. It has an effect that an inexpensive cold air fan can be obtained.

The invention according to claim 4 is, as described above, in the invention according to claim 2 or 3, wherein a blower port through which air blown by the fan flows is provided on the downstream side in the blower direction of the fan, and Since the vaporization chamber having the opening area larger than the opening area and containing the filter was connected to the blower opening, the surface area of the filter accommodated in the vaporization chamber can be increased because the opening area of the vaporization chamber is large. Therefore, the resistance of the air passing through the filter is reduced, and the output of the fan required to secure a predetermined air volume can be reduced. Therefore, the size and weight of the fan can be reduced and the power consumption can be reduced. Therefore, it is possible to obtain an inexpensive cold air fan that is easy to carry and inexpensive.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the invention described in claim 1. FIG.

FIG. 2 is a perspective view showing the overall structure.

FIG. 3 is a vertical sectional front view showing an embodiment of the invention according to claim 2 or 4.

FIG. 4 is a vertical sectional front view showing an embodiment of the invention according to claim 3 or 4;

[Explanation of symbols]

 1 Body Case 2 Water Tank 3 Ultrasonic Unit 4 Fan 7 Blower 11, 12 Filter 18, 20 Filter 19 Vaporization Chamber 21 Water Tank 22 Pipe

Claims (4)

[Claims] 1. A cold air fan having a fan for blowing outside air into the main body case and blowing the air outside, a water tank for storing water, and an ultrasonic unit for atomizing the water in the main body case. A cooling filter is provided on the downstream side of the ultrasonic unit along the air blowing direction of the fan to attach and capture the atomized water mixed and mixed with the air flowing in the main body case. A fan fan vaporizer. 2. A cold air fan having a fan for blowing outside air into the main body case and blowing the air outside, a water tank for storing water, and an ultrasonic unit for atomizing the water in the main body case. , The ultrasonic unit is provided on the upstream side of the fan along the blowing direction of the fan,
A filter for adhering and capturing water in atomized state and water droplets in atomized state mixed and mixed with air flowing in the main body case is provided on a downstream side of the fan along a blowing direction of the fan. A vaporizer for a cold fan. 3. A cool air fan having a fan for blowing outside air into the main body case and then blowing the air outside the main body case, and a water tank for storing water, one end of which is connected to the water tank. In addition, a pipe having the other end opened toward the fan is provided, and a filter for adhering and capturing water droplets in a fine state mixed with air flowing in the main body case and catching the filter is provided along the blowing direction of the fan. It is provided on the downstream side of the cold air fan vaporizer. 4. A blower port through which air blown by a fan flows is provided on the downstream side of the fan along the blowing direction of the fan, and has an opening area larger than the opening area of the blower port and accommodates a filter. The vaporizer for a cold air fan according to claim 2 or 3, wherein a vaporization chamber is connected to the blower port.