KR20100108999A - Portable cooling device - Google Patents

Abstract

PURPOSE: A portable cooling apparatus is provided, which can keep body temperature suitable for working and be worn on working clothes. CONSTITUTION: A portable cooling apparatus comprises: a garment in which a cold water tubing is equipped; an expansion valve expanding the condensed refrigerant; a cooling part(30) which is equipped with a micro evaporator for cooling water by evaporating the expanded refrigerant; a circulating pump(40) which circulates cooling water between the cooling part and cold water tubing; an input unit(50) operating the cooling part; and a controller(60) controlling the cooling part and circulating pump.

Description

Portable Chillers {PORTABLE COOLING DEVICE}

The present invention relates to a cooling device used for cooling work clothes, etc., wherein the cooling device comprises a compact rotary type compressor, a condenser and a micro evaporator, whereby a temperature at which a worker can maintain a body temperature suitable for working is 20 The present invention relates to a portable cooling device, which is easily portable, which can be worn on work clothes by being compact and lightweight so as to be cooled in the range of ℃ to 25 ℃.

Most workers who work in high-temperature working environments, such as firefighters and steel mill workers, wear heat-resistant clothing.In the case of soldiers who work in hazardous environments, such as chemicals or toxic gases, or in general, operations in the heat zones, The work is done by wearing chemical clothes.

In such a case, the heat dissipation suit or chemical suit worn by the worker is not only thick in clothes, but also poorly ventilated, and the worker suffers a lot of inconvenience.

Therefore, direct and indirect cooling have been required in order to provide a more comfortable working environment for the worker in a high temperature working environment as described above.

In order to satisfy these requirements, a cool jacket to which a cooling pack can be attached, or an air-distributed cooling suit having a plurality of cooling fans attached to work clothes, has been used.

However, in the conventional cool jacket as described above, since the temperature of the cooling pack, that is, the temperature of ice or solution is directly transmitted to the human body, temperature control is not easy, and the body part of the worker in direct contact with the cooling pack is rapidly cooled. There is a problem that can cause a cold or cause a heart attack due to the rapid decrease in body temperature of the worker.

In addition, the air flow-type cooling suit improves the breathability of the work clothes, but the cooling function is not enough to be easy to use in a high temperature working environment.

In order to solve the problems of the cooling suit as described above, a method for forcibly circulating the refrigerant inside the garment by using a cooling device using a power source, which is a cooling means of temperature control, has been sought.

However, the cooling device used for such a cooling suit has a problem that it is not suitable for a cooling system for an individual because of its poor portability due to its large volume and weight.

 In order to solve the above problems, the present invention is configured to include a compact rotary type compressor, a condenser and a micro evaporator, whereby the temperature is 20 ℃ ~ 25 that can maintain a body temperature suitable for the operator to work The present invention provides a portable cooling device, which is easily portable, which can be worn on work clothes by being compact and lightweight so as to be cooled in the range of ℃.

In addition, it is to provide a portable cooling device having a plurality of temperature sensors inside the work clothes to automatically control the cooling device according to the set temperature according to the temperature measured thereon.

The present invention for achieving the above object is a cold water pipe which is provided to flow the cooling water located inside to cool the body; clothes provided; and a compact rotary compressor for compressing the refrigerant and forcibly transported to the condenser; And a blower fan; and a small condenser mounted to condense the refrigerant introduced from the compressor; an expansion valve configured to expand the condensed refrigerant; And a small micro-evaporator for cooling the cooling water by evaporating the expanded refrigerant; and a cooling unit having a small vapor compression type; and a circulation pump for circulating the cooling water between the cooling unit and the cold water pipe. An input unit having an input unit capable of operating the cooling unit; and a control unit having control means for controlling the cooling unit and the circulation pump; and supplying power to the cooling unit, the input unit, the control unit, and the circulation pump. It is provided by a portable cooling device comprising a power supply unit.

In this case, the cold water pipe may be configured to be seated in the clothing to maintain a predetermined interval in the 'U' shape.

In addition, the cooling unit may cool the cooling water to a temperature range of 20 ℃ ~ 25 ℃.

Here, the condenser may condense the refrigerant in the range of 35 ° C to 40 ° C.

Preferably, the evaporator may evaporate the refrigerant in the range of 10 ° C to 20 ° C.

The input unit may further include an input unit capable of inputting a cooling set temperature, and the garment further includes a plurality of temperature sensing sensors therein, and the control unit controls the temperature measured by the temperature sensing sensor. The cooling unit and the cooling pump may be controlled according to the input cooling set temperature.

Preferably, the mass flow rate of the cooling water is in the range of 1g / s to 2.5 g / s, the temperature of the cooling water is in the range of 20 ℃ ~ 25 ℃, the control unit is the mass flow rate of the cooling water and the temperature range of the cooling pump The circulation speed can be adjusted.

In addition, the amount of cooling heat of the cooling water is in the range of 100W to 500W, and the controller may control the cooling unit according to the amount of cooling heat of the cooling water.

Preferably, the air volume of the blowing fan is provided to rotate in the range of 4㎥ / min ~ 5㎥ / min, the control unit can adjust the rotational speed of the blowing fan according to the present air flow rate range.

In addition, the expansion valve may be provided as a capillary tube.

Here, the capillary tube may be integrally formed by being connected to a portion into which the refrigerant of the evaporator is introduced.

As described above, the portable cooling device according to the present invention can be cooled to a temperature range capable of maintaining a body temperature suitable for an operator, and can be worn in work clothes by miniaturization and light weight, thereby maximizing portability.

In addition, the cooling apparatus may be automatically controlled according to the set temperature according to the temperature measured by the temperature sensor.

Hereinafter, with reference to the accompanying drawings, it will be described in detail with respect to the present invention.

Prior to this, terms used in the present specification and claims should not be construed in a dictionary meaning, and the inventors may properly define the concept of terms in order to explain their invention in the best way. It should be construed as meaning and concept consistent with the technical spirit of the present invention.

Accordingly, the shapes and configurations shown in the drawings as well as the embodiments described herein do not represent all of the technical ideas of the present invention, and various equivalents may be substituted for them at the time of filing of the present invention. It should be understood that variations may exist.

1 is a perspective view of a portable cooling device according to the present invention, Figure 2 is a front view and a rear view of the portable cooling device according to the present invention.

3 is a block diagram of a portable cooling apparatus according to the present invention.

1 and 2, the portable cooling apparatus according to the present invention includes a garment (10) having a cold water pipe (15) and a case (10) provided with a cold water pipe (15) provided to cool the body temperature. 20) includes an input unit 50 provided inside the cooling unit 30 for cooling the cooling water in a vapor compression type and an input unit 50 for operating the present cooling unit 30.

Referring to FIG. 3, not only the cooling unit 30 but also the circulation pump 40 and the cooling unit circulating the cooling water between the cooling unit 30 and the cold water pipe 15 inside the case 20. The control unit 70 is provided with a control means for controlling the 30.

In addition, the power supply unit 70 for supplying power to the cooling unit 30, the input unit 50, the control unit 60, the circulation pump 40 is located on the side of the case 20.

The case 20, the case is formed to be attached to the back plate of the garment 10, as shown in FIG.

Therefore, the case 20 has a shape that is easy to be attached to the back of the garment 10, the binding means 23 is additionally configured on one side of the case 20 attached to the back.

In addition, the case 20 is provided with a space in which the cooling unit 30, the cooling pump, the power supply unit 70, the control unit 60 is seated therein, the outer surface of the case 20 in the condenser 32 A duct 25 capable of discharging latent heat emitted is formed.

The case 20 may be easily connected to the cold water pipe 15 by providing a connection socket at a position corresponding to the cold water pipe 15 at one lower end.

As shown in FIG. 1, the garment 10 has a general jacket shape, and is provided with a cold water pipe 15 made of a flexible and excellent elastic material inside the entire garment 10 when passing the cooling water. It is configured to be able to perform even cooling with respect to.

Here, the garment 10 is not limited to only the jacket-type work clothes shown in the drawings, most of the clothing that can be built-in the cold water pipe 15, such as the garment 10 is composed of upper or lower upper and lower body integrally. Can be applied to

The cold water pipe 15 is embedded in the garment 10 while maintaining a predetermined interval in the 'U' shape to achieve a good heat transfer of the cooling water.

In addition, the cold water pipe 15 may be extended so that the distal end protrudes out of the garment 10 in order to easily enter the cooling water flowing from the cooling device, in this case, the connection socket at the end of the cold water pipe 15 May be provided.

4 is a block diagram of a portable cooling device according to an embodiment of the present invention.

Referring to FIG. 4, the cooling unit 30 of the portable cooling apparatus according to the present invention condenses the refrigerant 31, which compresses the refrigerant, and the refrigerant of the high temperature and high pressure state discharged from the compressor 31 while condensing while being radiated. To depressurize the refrigerant at high temperature and high pressure passing through the condenser 32 for changing to a high pressure liquid state, a blowing fan 33 for blowing air to the condenser 32 for heat exchange with external air, and a condenser 32 After passing through the expansion valve 34 and the expansion valve 34, the reduced pressure evaporator comprises an evaporator 35 for absorbing the heat of the cooling water by the vaporization heat.

As described above, the cooling unit 30 configured in a vapor compression type is operated in the following process.

First, the refrigerant introduced into the compressor 31 is pressurized and introduced into the condenser 32 in a state of high temperature and high pressure, and is exothermicly condensed by isothermal and isothermal heat exchange with outdoor air to form a high temperature and high pressure liquid refrigerant.

Next, while the high temperature and high pressure refrigerant passes through the expansion valve 34, the pressure of the refrigerant is reduced below the evaporation pressure.

The refrigerant introduced into the evaporator 35 cools the cooling water through heat exchange, and is endothermic and vaporized in an isothermal and isostatic process, and the vaporized low temperature and low pressure refrigerant has a pressure higher than the evaporation pressure due to a pressure difference lower than the evaporation pressure. Into the compressor 31 and the refrigerant is circulated in a cycle again.

Here, the cooling unit 30 may be mounted to the inside of the case 20, the compressor 31, the condenser 32, the expansion valve 34, the evaporator 35, each component in consideration of portability. It is equipped with small size and light weight equipment.

Therefore, the cooling unit 30 is configured as a cooling system capable of cooling the cooling water in a temperature range capable of maintaining a body temperature suitable for human activity, rather than a high-performance cooling system in order to enable compact and lightweight.

That is, the cooling unit 30 is provided with devices capable of cooling the cooling water to be maintained in the range of 20 ℃ ~ 25 ℃ temperature range that can maintain a body temperature suitable for human activity.

Here, the cooling water may be provided as a fluid having a mass flow rate in the range of 1 g / s to 2.5 g / s in order to allow even heat transfer to the garment 10 in the process of circulating through the cold water pipe 15. have.

Accordingly, the cooling unit 30 is configured to cool the cooling water with the amount of cooling heat in the range of 100W to 500W corresponding to the suitable body temperature holding temperature of the cooling water 20 ℃ ~ 25 ℃.

In order to achieve the above-mentioned amount of cooling heat, the cooling unit 30 is configured as a compact rotary compressor 31 capable of simplifying the size and weight of the compressor 31, and the condenser 32 stores the refrigerant at 35 ° C. It can be condensed in the range ~ 40 ℃, the evaporator 35 was configured to include a micro evaporator 35 that can evaporate the refrigerant in the range of 10 ℃ ~ 20 ℃.

In addition, the condenser 32 is attached to the blower fan 33 is configured to improve heat exchange efficiency with the air through forced convection cooling of the blower fan 33.

That is, the external cooling air passes through the condenser 32 as the rotation of the blowing fan 33 causes heat exchange to become hot air, and then is discharged again through the duct 25.

Here, in order to allow the condenser 32 to condense the refrigerant in the range of 35 ° C. to 40 ° C., the blower fan 33 is provided so that the air flow rate can be rotated within the range of 4 m 3 / min to 5 m 3 / min. do.

In addition, the expansion valve 34 may be provided as a capillary 36.

5 is a block diagram of a portable cooling apparatus including the cooling unit 30 in which the expansion valve is removed, which is another embodiment of the present invention.

Here, the cooling unit 30 is configured to be formed integrally by connecting a capillary tube 36 functioning as the expansion valve 34 instead of removing the expansion valve to a pipe portion into which the refrigerant of the evaporator 35 is introduced. The device can be made smaller and lighter.

That is, the inner diameter of the portion of the pipe portion into which the refrigerant of the evaporator 35 is introduced is formed to be small to perform the capillary function.

Input unit 50 is a device equipped with an input means for operating the cooling unit 30 is mounted on the front portion of the garment 10 as shown in FIG.

The input unit 50 is configured to include an operation means for operating the cooling unit 30 and an input means for inputting a cooling set temperature, and the control unit 60 receives a signal input to such operation and input means. To be sent to.

Here, the input unit 50 may be provided as a mechanical button, it may be provided with a variety of input means and operation means such as a reed switch or a touch screen.

In addition, the input unit 50 includes display means such as a display device that can display the operating state of the cooling unit 30 and the cooling set temperature, the operating temperature of the personal portable cooling device measured by the temperature sensor. Can be configured.

The control unit 60 is a control means for controlling the cooling unit 30 and the circulation pump 40, the user such as ON / OFF (ON / OFF), the input temperature of the cooling device acting on the input unit 50 By receiving the operating force to adjust the amount of cooling heat of the cooling unit 30 so that the user's body temperature is optimal, and controls the cooling pump to maintain even cooling to adjust the flow rate of the cooling water.

In order to maintain even cooling as described above, a plurality of temperature detection sensors 17 may be disposed on the garment 10.

The temperature sensor 17 is disposed at regular intervals along the cold water pipe 15 seated inside the garment 10, and when the temperature measured by each temperature sensor 17 is different from each other, the control unit 60 is to maintain the same temperature distribution on the garment 10 by adjusting the flow rate of the cooling water in accordance with the position of the temperature sensor that the temperature difference occurs.

In addition, the controller 60 compares the average of the temperatures measured by the temperature sensors 17 and the temperature input to the input unit 50, when the measured temperature and the input temperature are different from each other, the 4㎥ The rotational speed of the blowing fan 33 is controlled within a range of air flow rate / min ~ 5㎥ / min.

The power supply unit 70 is a device for supplying power to the cooling unit 30, the input unit 50, the control unit 60, the circulation pump 40 is located on the side of the case 20, the binding means 23 It is formed to be attached to.

Preferably, the power supply unit 70 is provided in the form of a DC power supply by a battery in consideration of the portability of the cooling apparatus according to the present invention.

Here, the power supply unit 70 supplies a battery and a conductive contact member connected to the battery and current generated from the battery to the cooling unit 30, the input unit 50, the control unit 60, and the circulation pump 40. It is comprised so that the connection part provided with conducting wires, etc. may be made.

1 is a perspective view of a portable cooling device according to the present invention,

2 is a front view and a rear view of a portable cooling device according to the present invention;

3 is a block diagram of a portable cooling device according to the present invention;

4 is a block diagram of a portable cooling device according to an embodiment of the present invention,

5 is a block diagram of a portable cooling device according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: clothes 15: cold water piping

17: temperature sensor 20: case

23: binding means 25: duct

30: cooling unit 31: compressor

32: condenser 33: blowing fan

34 expansion valve 35 evaporator

36: capillary tube 40: circulation pump

50: input unit 60: control unit

70: power supply

Claims (11)

Clothes provided with; cold water pipes arranged to flow inside the cooling water for cooling the body temperature; and A compact rotary compressor for compressing the refrigerant and forcibly transferring the refrigerant to the condenser; And a blower fan; and a small condenser mounted to condense the refrigerant introduced from the compressor; an expansion valve configured to expand the condensed refrigerant; And a small micro evaporator configured to evaporate the expanded refrigerant to an evaporation temperature to cool the cooling water. A circulation pump circulating the cooling water between the cooling unit and the cold water pipe; and An input unit having an input unit capable of operating the cooling unit; and A control unit having control means for controlling the cooling unit and the circulation pump; and And a cooling unit, an input unit, a control unit, and a power supply unit for supplying electric power to a circulation pump. Portable chiller made with. The method of claim 1, The cold water pipe is a portable cooling device, characterized in that seated at a certain interval in the 'U' shape inside the garment. The method of claim 1, The cooling unit is a portable cooling device, characterized in that for cooling the cooling water in the temperature range of 20 ℃ ~ 25 ℃. The method of claim 3, The condenser is a portable cooling device, characterized in that to condense the refrigerant in the range of 35 ℃ ~ 40 ℃. The method of claim 4, wherein The evaporator is a portable cooling device, characterized in that for evaporating the refrigerant in the range of 10 ℃ ~ 20 ℃. The method of claim 5, The input unit may further include an input unit for inputting a cooling set temperature, and the garment further includes a plurality of temperature sensing sensors therein, and the control unit receives the temperature measured by the temperature sensing sensor. Portable cooling apparatus characterized in that for controlling the cooling unit and the cooling pump in accordance with the cooling set temperature. The method of claim 6, The mass flow rate of the cooling water is in the range of 1 g / s to 2.5 g / s, the temperature of the cooling water is in the range of 20 ° C. to 25 ° C., and the controller controls the circulation rate of the cooling pump according to the mass flow rate and the temperature range of the cooling water. Portable chiller characterized in that. The method of claim 7, wherein The amount of cooling heat of the cooling unit is in the range of 100 W to 500 W, and the control unit controls the cooling unit according to the amount of cooling heat. The method of claim 8, The air flow rate of the blowing fan is provided to rotate in the range of 4㎥ / min ~ 5㎥ / min, the control unit is a portable cooling device, characterized in that to adjust the rotational speed of the blowing fan according to the present air flow range. The method according to any one of claims 1 to 9, Portable expansion device, characterized in that the expansion valve is provided with a capillary tube. The method of claim 10, The capillary is portable cooling device, characterized in that formed integrally connected to the portion of the refrigerant flows in the evaporator.

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