JPH10213330A - Portable type cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform cooling operation being low in a pressure loss and high in dehumidifying capacity by a method wherein air inputted from an external part is cooled by accumulated ice, and generated cold air is fed to an external part. SOLUTION: As a tank 8 is properly filled with water 13 through a pipe 9, a position above a net 12a is filled with water 14 in an amount necessary enough to allow cooling operation. A time in which ice 14 is manufactured is controlled in terms of a time by a control device incorporated in a refrigerating cycle or a sensor to measure the filling height of the ice 14 with which the net 12a is filled is arranged at the upper part of the net 12a in a surrounding apparatus 1 for decision. A motor 18 is operated to rotate a fan 17, and air is sucked in the internal part of the surrounding apparatus 1 through a suction port 5. Sucked air passes through the net 12b, and through direct contact with the ice 14 with which a position above the net 12a is filled and the water 13 generated resultant from fusion of the ice 14, heat-exchange is effected and air is cooled. Thereafter, cooled air is guided through a duct 15 to the external part of the surrounding apparatus 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable cooling device, and more particularly to a method for producing ice by using an ice maker and directly bringing the ice into contact with air sent into the device to generate cold heat. The present invention relates to a portable cooling device.

[0002]

2. Description of the Related Art As an apparatus for performing cooling by applying cold heat of a cooling material such as ice to air, for example, Japanese Patent Application Laid-Open No. 2-97830 is disclosed.
There is one shown in Japanese Patent Publication No. This involves immersing a part of the rotating filter in the water in the water tank and blowing it to pre-cool it.Then, the air that has passed through the filter is brought into contact with a metal container filled with ice to generate cold heat, Structure. Japanese Patent Application Laid-Open No. 63-91474 discloses that water is cooled by spraying water on a cooling coil provided in an apparatus, and ice is formed around the cooling coil, so that it is directly in contact with air sent into the apparatus. It discloses a device for generating low-temperature, high-humidity air. Also, in the Transactions of the Japan Society of Mechanical Engineers, B, Vol. 61, No. 592, pp. 216-223, there is disclosed a device in which a fine latent heat storage material is mixed with water and heat is obtained by blowing air into the two-phase mixture. Is described.

[0003]

Problems to be Solved by the Invention Japanese Patent Application Laid-Open No. 2-97830
The air conditioner described in Japanese Patent Application Laid-Open No. H11-150572 is cooled by the sensible heat of water when the air sent into the apparatus passes through a filter that rotates while one end of the filter is immersed in cold water, and then provided in a container filled with ice. The air flows so as to be in contact with the metal air guide and is cooled again. However, because of the heat exchange between ice and air through the metal air guide,
This is an indirect heat exchange method, and the efficiency of extracting cold heat is lower than the method of exchanging heat by bringing ice and air into direct contact.

[0004] In Japanese Patent Application Laid-Open No. 63-91474, water is cooled by spraying water on a cooling coil provided in the apparatus, and ice is formed around the cooling coil. It is in direct contact with air to generate low-temperature, high-humidity air. This device cools air so as to maintain stored items such as fruits and vegetables in a low-temperature and high-humidity environment, and is not suitable for air conditioning for the purpose of dehumidifying air.

Also, Transactions of the Society of Mechanical Engineers, B, Vol. 61, No. 592
The one described in P.216-223 has a problem that a large pressure loss is required because air is blown directly into a slurry in which a fine latent heat storage material is mixed with water, so that a large power is required. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is directed to an ice-air direct contact type capable of dehumidifying with low pressure loss, generating cold with high efficiency. It is to provide a portable cooling device.

[0007]

To achieve the above object, the present invention provides an ice making means for producing ice, an ice storage means for storing ice produced by the means,
The air taken in from outside is cooled by the ice stored in the ice storage means, and the blowing means for sending out the obtained cold air to the outside, and at least the ice making means, the ice storage means, and the blowing means are provided therein. And a portable housing stored in
A portable cooling device characterized by comprising:

Further, the present invention provides a water storage tank for storing at least water generated by melting of the ice, and the ice making method for producing ice from the water stored in the water storage tank. Disclosed is a portable cooling device provided with a water supply means for sending to the means.

[0009]

Embodiments of the present invention will be described below in detail. FIG. 1 shows an example of the configuration of a portable cooling device of the present invention. FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG. In these figures, an enclosure 1 provided with a cooling duct 15, a suction port 5 for ice, a suction port 24 for a condenser, and a discharge port 25, is provided in a part of the enclosure 1. Compressor 28, fan 29 driven by motor 30, condenser 27, expansion valve 31, four-way valve 13
0, ice making plates 16a, 16b, 16 for making ice (crushed ice) 14
c, 16d, pipes 32, 32e connecting these to constitute a cycle, a refrigerant (Freon) put in the inside, a tank 8, a pump 6 provided in the middle of the pipe 3 for sucking up water 13 in the tank 8, The pipe 7 provided at the other end of the pump 6, the valve 4 provided downstream of the pump 6 in the middle of the pipe 3, and the end of the pipe 3 are connected.
a, a sprinkler pipe 2 provided above 16b, 16c, 16d
a, 2b, 2c and 2d. Ice plate 1
Below the 6a, 16b, 16c, 16d there is provided a net 12a, 12b for receiving the ice 14 produced thereby, the net 12a being supported by a support plate 11 attached to the envelope 1. The net 12b is inclined toward the net 12a, and the ice 14 formed by the ice making plates 16a to 16d is formed.
Are rolled downward, and are easily filled on the net 12a.
In order to send cool air into the duct 15, a fan 17 with a motor 18 and a fan 17
Are provided on the inside of the envelope 1. In addition, four wheels 23 are provided on the lower surface of the envelope 1 so that the device can be moved to a desired place.

Next, the operation of the present apparatus will be described. First, a pipe 9 provided in the tank 8 is connected to a water pipe. When the valve 10 is opened, water 13 is injected into the tank 8. Next, the compressor 28 is operated, and at the same time, the pump 6 is also driven to pump up the water 13 in the tank 8, and the ice making plates 16a to 16
d from the sprinkler pipes 2a to 2d
Watering. Here, the number of ice making plates is four in FIG. 1, but the number may be determined according to the size of the envelope 1 and the cooling load. The sprinkled water 13 is used for cooling the ice-making plate 1
It falls downward while directly contacting the surfaces of 6a to 16d, and is gradually cooled. Then, the cooled water 13
The phase changes on the surfaces of the ice making plates 16a to 16d to form plate-like ice 14. When the ice 14 formed on the ice making plates 16a to 16d has a certain thickness, the refrigerating cycle is reversed from that of the ice making, and the ice making plates 16a to 16d are heated as a condenser to remove the ice 14. . Alternatively, a hot wire may be stretched around the surfaces of the ice making plates 16a to 16d, the refrigeration cycle may be stopped once, and the hot wire may be energized and heated to peel off the ice 14.

FIG. 4 shows the shape of one of the ice making plates 16a to 16d. Vertically non-metallic projections (such as plastic and Teflon) are provided on both surfaces of the ice making plate so that the plate-like ice 14 formed on the surface of the ice making plate is easily broken when falling on the nets 12a and 12b. Bad thing) 13
1, 131... Are provided. Such a protrusion 13
By providing 1, 131... At appropriate intervals, ice 14 having a desired width can be obtained. However, the thickness of the ice 14 formed by the ice making plate needs to be deiced before exceeding the height of the protrusion 131. The shape of the ice 14 to be manufactured is such that the air taken into the envelope 1 from the suction port 5 easily passes through the gap between the ice 14 filled on the net 12a, and the contact area between the ice and the air is large. Ice crushing that can be removed (for example, ice cubes of about 30 mm square) is good. In order to reliably obtain such ice crushing, an ice crushing mechanism may be provided below the ice making plate. In addition, ice making plates 16a-1
As the refrigeration cycle including 6d, a general ice maker used for business may be applied. In addition, the ice 1 of the envelope 1
The portion filled with 4 is insulated to prevent a decrease in thermal efficiency.

In this manner, the water 13 is appropriately discharged from the pipe 9.
While replenishing the tank 8 with the amount of ice 1 necessary for the cooling operation.
4 is filled on the net 12a. The level of the water 13 in the tank 8 is maintained at a constant level by providing a sensor in the tank 8 and controlling the opening of the valve 10 according to the detection level. The time for producing the ice 14 is temporally controlled by a control device incorporated in the refrigeration cycle, or a sensor for measuring the filling height of the ice 14 filled in the net 12a is connected to the net in the envelope 1. 12a. The motor 18 is driven to rotate the fan 17 to suck air from the suction port 5 into the envelope 1. The sucked air passes through the net 12b, and makes direct heat exchange with the ice 14 filled on the net 12a and the water 13 generated by melting of the ice 14, whereby the air is cooled. After that, the cooled air is guided to the outside of the envelope 1 through the duct 15.

On the other hand, in the tank 8, the water 13 gradually increases with the melting of the ice 14 filled on the net 12a, and the water in the air taken into the envelope 1 condenses. Join. When all the ice 14 filled on the net 12a is melted, the water 13 overflows from the tank 8. Therefore, the water 13 accumulated in the tank 8 must be discarded to the outside of the apparatus. A sensor is provided so that the water 13 does not overflow from the tank 8, the valve 22 is automatically opened, and the water 13 reaches a certain level.
Throw away.

There are the following three typical methods for generating cold air by the present apparatus. (1) Enclose the ice 14 at night using electricity at midnight
A method in which heat is stored in the refrigerator and the cooling source is only the ice 14 during cooling operation, and the refrigeration cycle is not operated. (2) A method of producing ice 14 by operating a refrigeration cycle while supplementing the ice 14 while generating cold air using the ice 14 stored during the night as a cold heat source. (3) When there is no ice 14, the ice making plates 16a to 16d
This is a method of making ice 14 while generating cold air by using as a cold heat source. Of these, the use of midnight power has the advantage of being inexpensive. In particular, if ice is prepared before the cooling operation as in the method (1), the ice is brought into direct contact with the air immediately at the time of use, and the cold air is used. In this case, since cool air can be generated without operating the refrigerator, there is an advantage that a rise in room temperature due to exhaust heat can be avoided.

Further, when the present apparatus is used indoors,
There are times when it is difficult to discard water 13 outside the device. In this case, as shown in FIG. 3, the tank 8 and the removable sub-tank 120 are connected by a pipe 121.
The connecting portion between the pipe 121 and the sub-tank 120 has a structure in which the pipe 121 is inserted into a hole 156 provided in the sub-tank 120, and the connection between the sub-tank 120 and the pipe 121 is simplified. The sub-tank 120 is filled with the water 13 and has a size that can be taken out of the apparatus. According to this structure, as much as the water 13 in the tank 8 overflows, the sub-tank 1
Flow into 20. Therefore, when the water 13 in the sub tank 120 becomes full, the outside is notified by a lamp or the like, the door 122 is opened from the envelope 1, taken out of the apparatus, and the water 13 is discarded to a predetermined place. By providing the sub-tank 120 in this manner, it is not necessary to directly discard the water 13 from the tank 8 to the outside through the pipe 21. At the same time, the size of the tank 8 can be reduced and the entire apparatus can be reduced in size.

FIG. 5 shows another example of the structure of the portable cooling device of the present invention. The difference from the structure of FIG.
Inside, a fan 17 with a motor 18, a sprinkler tube 2, and an ice making plate 16 are arranged in this order from top to bottom, and the ice 14 is filled in a portion surrounded by the partition plates 33a, 33b and the net 12a. This is the structure. In addition, suction holes 5 are provided on both sides of the envelope 1 for sucking air for ice.
a and 5b are provided, and an air guide 35 is provided to smooth the flow of air inside the envelope 1. Further, a duct connecting portion 34 is provided at a connecting portion between the duct 15 and the envelope 1 so that the duct 15 can be easily rotated in the horizontal direction. Note that the partition plates 33a and 33b must have a structure (for example, a metal net) through which air can pass. Also,
Although there are actually a plurality of watering tubes and ice making plates as in FIG. 1, they are indicated by reference numerals 2 and 16 for simplicity. The same applies to the following.

According to this configuration, the fan 17, the ice making plate 1
6. By placing the packed layers of ice surrounded by the partition plates 33a, 33b, 12a in the vertical direction in the above order, and sucking air from ducts 5a, 5b provided on the side surfaces of the partition plates 33a, 33b, The air cooled by heat exchange with ice is smoothly guided outside through the duct 15. Also,
By providing two suction ports, the area where ice comes into contact with air increases, and efficient heat exchange can be performed. Further, since the fan 17 is provided on the ice making plate 16, even when the ice 14 is completely absent, the surface of the ice making plate 16 is in good contact with the air, and the efficiency of cooling the air is improved. As in the case of FIG. 1, the number of the ice making plates 16 and the water sprinkling pipes 2 attached thereto may be increased in accordance with the cooling load.

FIG. 6 shows another configuration example of the portable cooling device of the present invention. This configuration example has a structure in which the contact time between the water 13 generated by melting of the ice 14 and the air sucked from the suction port can be extended, and the water 13 has the water 13 before the ice and the air come into direct contact. The air is previously cooled by sensible heat. For this purpose, the fan 17 with the motor 18 is replaced with a fan provided with an air suction port 38 on the side surface of the envelope 1 below a portion surrounded by the partition plates 36a, 36b filled with ice 14 and the net 12a. The storage unit 37 is provided. An air guide 39 is provided below the support plate 11 to change the direction of the flow of the air sucked from the suction port 38 to the direction of the net 12a.

By providing the duct 38 for feeding air and the fan 17 below the place where the ice 14 is filled, the ice 14 and the air come into direct contact with each other and exchange heat.
The sensible heat of the water 13 generated by melting the ice 14 can be effectively used. That is, the air sucked in from the duct 38 can be mixed with the water (droplets) 13 falling from the net 12a to take a long time for heat exchange, so that the sensible heat of the water (droplets) 13 is reduced. It can be used effectively and pre-cooling can be performed. As a result, the ice 14 filled in the envelope 1
The temperature difference between ice and air when heat exchange between the ice and air can be reduced, and the melting time of ice 14 can be prolonged. It is also effective for dust removal at the same time as preliminary cooling.

FIG. 7 shows another configuration example of the portable cooling device of the present invention. This configuration example includes centrifugal fans 45a,
5b for driving the motor 5b, and the support plate 1 for fixing the motor 44
Partition plate 50 supported by 1a and filled with ice 14
The portions surrounded by a, 50b, 51a, 51b and the net 12a are fixed by support plates 11, 11a. The support plate 11a is inclined with respect to the net 12a,
3 easily flows into the tank 8. Partition plate 5
0a, 50b, a slit 100 is provided in the envelope 1.
Attached ducts 5a and 5b are provided. The end of the pipe 3 connected to the pump 6 is separated in two directions to form a pipe 3a,
3b, and a valve 4a in the middle of the pipes 3a and 3b.
4b, water sprinkling pipes 42, 43 are connected to the ends thereof, and ice making plates 40, 41 are provided below the sprinkling pipes.

In this configuration example, the ice 14 is filled with a plurality of places, and the valves 4a, 4b provided on the pipes 3a, 3b are provided.
Of water 13 sprayed from watering pipes 42 and 43
And the amount of ice 14 formed on the ice making plates 40 and 41 is changed. This makes it possible to change the filling amount of the ice 14, that is, the amount of heat storage, on the left and right, to perform an operation according to a required cooling load, and to easily obtain a desired temperature of the cold air. The amount of air taken into the envelope 1 is
It can be changed by the rotation speed of the centrifugal fans 45a, 45b, but can also be adjusted by slits 100 provided in the suction ports 5a, 5b.

FIG. 8 shows another configuration example of the portable cooling device of the present invention. In this configuration example, as shown in the configuration example of FIG. 6, the air is pre-cooled before the ice is brought into direct contact with the air to cool the air. For this purpose, pipes 3a and 3b provided separately in two directions at an end of the pipe 3 connected to the pump 6, and valves 4a and 4 provided in the middle thereof.
b, injection ports 53a, 53 provided in the middle of the pipe 3b
b, 53c, 53d, etc. are installed, and the injection ports 53a, 53
b, 53c and 53d, four rollers 56
A filter 55 including a, 56b, 56c, and 56d is provided. Rollers 56a, 56b, 56c, 5
At least one of the 6d has a motor,
The filter 55 can be rotated.
5 are cuts 140, 14 provided in the middle of the support plate 11.
1 can contact the water 13 in the tank 8. The filter 55 preferably has good air permeability and good wettability with the water 13.
The water 13 injected from b, 53c, 53d is preferably in the form of a mist. Also, between the cuts 140 and 141,
A network 12c is provided. A partition plate 51 is provided inside the envelope 1.
a, 51b are provided, which are joined by the support plate 54, and the support plate 11 is provided between the support plates 51a, 51b.
It has a fan 17 with a motor 18 provided above. An air inlet 5a, an air outlet 5
c, and a duct connecting portion 52 is provided outside the envelope 1 at the discharge port 5c.

This configuration example is a device having a pre-cooling function of cooling the air sucked from the air suction port 5a when passing through the filter 55 and further cooling with the ice 14. The operation method is as follows. The valve 4b provided on the pipe 3b is closed, the valve 4a is opened, and the ice 1
After the required amount of ice 14 is filled on the net 12a, the fan 17 is operated to feed air. Ice 1
The air that has exchanged heat with 4 is discharged outside through the discharge port 5c. The water 13 cooled by the ice making plate 16 and the water 13 generated by melting the ice 14 gradually accumulate in the tank 8. When the water in the tank 8 is cooled in this way, the valve 4a is closed, the valve 4b is opened, and the injection port 53a,
Water 13 is injected from 53b, 53c, and 53d, and the filter 55 is rotated. The water 13 thus injected
Adheres to the filter 55 and exchanges heat when the air sucked from the suction port 5a passes through the filter 55 to perform pre-cooling. At this time, if ice 14 is to be continuously produced by the ice making plate 16, the valve 4a is opened again and the pipe 3b is opened.
The amount of water 13 flowing to the water may be reduced. In this way, the air can be pre-cooled by utilizing the sensible heat of the water 13 before the heat exchange between the ice 14 and the air in accordance with the cooling load, and the water 13 is injected from the injection ports 53a, 53b, 53c, 53d. By adjusting the amount, the size of the pre-cooling can be determined.

FIG. 9 shows another example of the configuration of the portable cooling device of the present invention, and FIG. 10 is an enlarged view of the periphery of the fan 17. This configuration example also performs pre-cooling of air in the same manner as in FIG. 8, and has a structure in which an injection port is provided downstream of the fan.
That is, pipes 62a, 62b, 62c, and 62d branched in the middle of the pipe 3 connected to the pump 6 are connected, valves 60a, 60b, 60c, and 60d are provided in the middle thereof, and injection ports 61a, 61b, and 61c are provided in the ends thereof. , 61 d, which are located in front of the fan 17. The injection ports 61a, 61b, 61c, 61d are supported by a partition plate 64, and the partition plate 64 has a structure through which air can pass. The partition plates 63 and 64 and the net 12 a are supported by the support plate 11 inside the envelope 1. The end of the air guide 65 is connected to the partition plates 63 and 64.

As described above, this configuration example also performs pre-cooling before performing heat exchange between ice and air, and water 13 is injected along the flow of air from fan 17 into injection ports 61a and 61a.
b, 61c, and 61d. When the ice 14 is produced by the ice making plate 16, the valve 6 provided on the pipe 3 is used.
0a, 60b, 60c, and 60d are closed, the valve 4 is opened, and water 13 is sprinkled from the sprinkling pipe 2 to make ice 14. The pre-cooling operation is performed by closing the valve 4 and closing the valves 60a, 60b, 6
0c and 60d are opened and the injection ports 61a, 61b, 61c,
Water 13 is injected from 61d. Also in this case, it is better to perform the operation after the temperature of the water 13 has dropped, as in the configuration example of FIG.
The air sucked from the suction port 5a in this way is the water 1 from the injection ports 61a, 61b, 61c, and 61d.
By the method 3, preliminary cooling can be performed.

FIG. 11 shows another configuration example of the portable cooling device of the present invention. In this configuration example, the refrigeration cycle connected to each ice making plate is switched by a valve so that the ice production time can be shifted for each ice making plate to operate. For this reason, the pipe 3 connected to the pump 6
c, 3d are provided in a branched manner, and valves 74a, 7
4b and 74c are provided. Further, pipes 3, 3c, 3
Sprinkler pipes 73a, 73b, 73c are provided at the end of d, and ice making plates 75a, 75b, 75c provided by connecting containers 76a, 76b, 76c are provided below them. Further, since the containers 76a, 76b, and 76c are filled with the ice 14, it is necessary to allow air and water to pass therethrough. For this reason, the lower ends of the containers 76a, 76b, and 76c have inclined ends formed by pipes 78. Waterway 79 attached and connected
a, 79b, 79c, air inlets 70a, 70b, 70c on the side of the envelope 1, and containers 76a, 76c.
b, 76c, one motor 71 corresponding to each of
Fans 72a, 72b, 72c with a, 71b, 71c
Is installed. Further, the envelope 1 includes partition plates 80a, 8
0b and 80c, the inside of which is separated
Air outlets 77a, 77
Through b and 77c, the duct is connected to the outside through a duct connecting portion 81 provided on the outlet side and a duct 15 connected thereto.

FIG. 12 shows a refrigeration cycle of the apparatus shown in FIG. 11, in which the time zones of the ice making operation in each of the ice making plates 75a, 75b and 75c can be shifted. For this reason, the pipe 32
a and 32b are branched, and pipes 32, 32a, 32
Valves 150, 151, and 152 are respectively installed in b. Further, after passing through the ice making plates 75a, 75b and 75c, the pipes 32 are passed through valves 153, 154 and 155.
e.

11 and 12, the ice making plate 75a is in the operation mode in which the ice 14 is to be manufactured from now on, the ice making plate 75b is in the operation mode in which the ice 14 is being manufactured, and the ice making plate 75c is in the operation mode. An operation mode in which the fan 72c is operated to generate cool air by running is shown. The cool air obtained by the operation of the fan 72c is guided outside through the duct connecting portion 81 and the duct 15. At this time, the fans 72a and 72b stop operating and the pipes 3 and 3d
Are closed. At this time, on the refrigerating cycle of FIG.
4 only open, other valves 150, 152, 153, 15
Reference numeral 5 denotes a closed state, in which water is sprinkled only from the sprinkling pipe 73b. Thus, each of the ice making plates 75a, 75b, 75
c, the operation mode is switched cyclically so that ice 1 is always stored in one of containers 76a, 76b, 76c.
4 is filled, and cold air can be supplied from any of the locations.

FIG. 13 shows another configuration example of the portable cooling device of the present invention. This configuration example is a modification of the configuration example shown in FIG. 6, in which a mechanism is provided for mixing cold air guided to the outside from the duct 15 with outside air to reach a desired temperature. The mesh 12a connected to the partition plates 36a and 36b is provided inside the envelope 1 by the support plate 11, and the air suction port 5 is provided on the side of the envelope 1 below the support plate 11.
a, 5b are provided. The tank 8 below the support plate 11 is provided with air guides 91a and 91b and columns 92a and 92b for supporting them. Partition plate 3
An air suction port 94 connected to the passage 93 is provided on a side surface of the envelope 1 above the upper portions 6a and 36b, and a damper 95 is provided inside the passage 93. Further, a temperature sensor 90 is provided at a duct connecting portion above the envelope 1.

In this configuration, the suction ports 5a, 5a
b, the air sucked from the air guides 91a, 91b
Flows through the net 12a and makes direct contact with the ice 14 for heat exchange. However, the temperature and humidity of the air that has exchanged heat with the ice 14 may not be suitable for air conditioning. In this case, the opening degree is adjusted by a damper 95 linked to the temperature sensor 90 to take in air from outside into the envelope 1. That is, when the temperature of the air that has exchanged heat with the ice 14 is too low, the opening degree of the damper 95 is increased, and the outside air is sucked through the suction port 94. In this manner, the air cooled by the heat exchange with the ice 14 and the outside air from the suction port 94 are mixed, and the mixture is adjusted to an appropriate temperature and then sent to the duct 15.

FIG. 14 shows still another example of the configuration of the portable cooling device of the present invention. This configuration example is similar to the configuration example of FIG. 13 except that a temperature control function of cold air is added. For this purpose, the duct connection part 3 provided on the upper part of the envelope 1
A passage 101 is provided adjacent to the lower end 4, and the lower end of the passage 101 is connected to the suction port 5b. A damper 102 is provided in the middle of the passage 101, and a fan 17a with a motor 18a is provided at a connection between the passage 101 and the envelope 1. In the middle of the duct connecting portion 34, the temperature sensor 9 is provided.
0 is provided, and a slit 100 for adjusting the air volume is provided in the suction port 5a.

In this configuration example, the air sucked from the suction port 5b is not the outside air, but the air once cooled by the heat exchange with the ice 14 is again circulated and sucked. The opening of the damper 102 provided inside the passage 101 is adjusted in conjunction with the temperature sensor 90 to determine the flow rate of the air to be circulated again. Since the temperature of the air sucked from the suction port 5b is lower than the outside air sucked from the suction port 5a, the ice 14 on the suction port 5b side does not melt much. Therefore, by adjusting the opening degree of the damper 102, the melting amount of the ice 14 can be adjusted, and the temperature of the cold air output from the duct 15 can be set to an appropriate value.

While various examples of the configuration of the portable cooling device of the present invention have been described above, the configuration in which the sub-tank 120 shown in FIG. 3 is installed in another example of the configuration, or FIGS.
Needless to say, a useful combination of each configuration example is also possible, for example, by providing a mechanism for pre-cooling the air by the sensible heat of cold water as shown in FIG. 11 in the portion of the containers 76a to 76c in FIG.

In each of the above-described configurations, the tank 8 is provided to circulate and use water. In particular, in the case of a small-sized apparatus, the tank 8 is not provided, and ice is removed from water from a water supply system or the like. It is also possible to adopt a structure in which water produced and melted and water produced by condensation from the air flow directly to the drain. In this case, the configuration is simplified and the size can be reduced.

[0035]

According to the present invention, the following advantages can be obtained. (1) Portable ice / air direct contact cooling system
A cooling operation with a high dehumidifying ability and a low pressure loss can be performed at a desired place. (2) The blowing temperature is lower than that of a conventional spot cooler. (3) By producing ice using midnight electric power, a cooling operation without a rise in room temperature due to exhaust heat of the refrigerator becomes possible.

[Brief description of the drawings]

FIG. 1 is a diagram showing one configuration example of a portable cooling device of the present invention.

FIG. 2 is a cross-sectional view of the configuration example of FIG.

FIG. 3 is a cross-sectional view of the configuration example of FIG.

FIG. 4 is a diagram showing a surface shape of an ice making plate.

FIG. 5 is a diagram showing another configuration example of the portable cooling device of the present invention.

FIG. 6 is a diagram showing another configuration example of the portable cooling device of the present invention.

FIG. 7 is a diagram showing another configuration example of the portable cooling device of the present invention.

FIG. 8 is a diagram showing another configuration example of the portable cooling device of the present invention.

FIG. 9 is a diagram showing another configuration example of the portable cooling device of the present invention.

FIG. 10 is a detailed view around the fan in the configuration example of FIG. 9;

FIG. 11 is a diagram showing another configuration example of the portable cooling device of the present invention.

12 is a diagram showing a refrigeration cycle of the configuration example shown in FIG.

FIG. 13 is a diagram showing another configuration example of the portable cooling device of the present invention.

FIG. 14 is a view showing still another configuration example of the portable cooling device of the present invention.

[Explanation of symbols]

1 envelope 2, 2a-2d, 42, 43, 73a-73c watering pipe 5, 5a-5c, 24, 38, 70a-70c suction port 5c, 25, 77a-77c discharge port 6 pump 8 tank 12a, 12b , 12c Net 13 Water (droplets) 14 Ice (crushed ice) 15 Duct 16, 16a-16d, 40, 41, 75a-75c
Ice plate 17, 17a, 17b, 29, 45a, 45b, 72a
To 72c fan 23 wheels 27 condenser 28 compressor 35, 39, 65, 91a, 91b air guide 53a to 53d injection port 55 filter 76a to 76c container 79a to 79c water path 90 sensor 93, 101 passage 94 suction port 95, 102 damper 100 slit 120 sub tank 131 protrusion

Claims (8)

[Claims] 1. An ice making means for producing ice, an ice storage means for storing ice produced by the means, and an air taken in from outside cooled by the ice stored in the ice storage means. And a blowing means for sending out the obtained cold air to the outside, and a portable housing housing at least the ice making means, the ice storage means, and the blowing means therein. Portable cooling device. 2. A water storage tank for storing at least water generated by melting of the ice, and a water storage tank for sending the water to the ice making means for producing ice from the water stored in the water storage tank. 2. The portable cooling device according to claim 1, further comprising: 3. The portable cooling device according to claim 1, wherein a long projection in a vertical direction is provided on a surface of an ice making plate constituting a part of the ice making means. 4. A drain tank having a structure for temporarily storing water generated by melting of the ice and condensation of moisture in the air and capable of taking out the water while storing the water. 3. The portable cooling device according to 1 or 2. 5. The heat exchange of the air taken in from the outside with the sensible heat of water generated by the melting of the ice before the air reaches the ice stored in the ice storage means. 3. The portable cooling device according to claim 1, further comprising a pre-cooling mechanism for pre-cooling. 6. A plurality of units each formed by combining an ice making plate constituting a part of the ice making means, the ice storage means and the air blowing means are provided, and ice making in each of the units is shifted in time. The portable cooling device according to claim 1 or 2, further comprising a control mechanism for performing control. 7. A means for detecting the temperature of the obtained cold air, a mixing means for mixing the cold air with the outside air, and a mixing ratio between the cold air and the outside air in the means for detecting the temperature of the cold air. The portable cooling device according to claim 1 or 2, further comprising: a first adjusting unit that adjusts the temperature according to the detected temperature. 8. A means for detecting the temperature of the obtained cool air, a cool air circulating means for sending a part of the cool air to ice stored in the ice storage means, and a circulating amount of the cool air in the means. The portable cooling device according to claim 1 or 2, further comprising a second adjusting unit that adjusts the temperature according to the temperature detected by the temperature detecting unit.