KR101593367B1 - Air conditioner, using cooling-energy - Google Patents

Abstract

The present invention relates to an air conditioner using cooling energy. The air conditioner comprises: a cool storage chamber which accommodates a liquid refrigerant for cool storage in an inner chamber which is an inner space of an inner housing, wherein an insulation material is interposed between the outer housing and inner housing; a cooler which includes a compressor, a condenser, and an evaporator to cool the liquid refrigerant, and cools the liquid refrigerant through heat exchange with the evaporator; a heat exchange unit which circulates the liquid refrigerant accommodated in the inner chamber to the outside of the housing and circulates, after heat exchange with the air flowing from the outside, the liquid refrigerant to the inner chamber; and a cool air adjustment means which adjusts the temperature of gas discharged to the outside by adjusting the inflow amount of ambient air mixed with the gas cooled by the heat exchange with the heat exchange unit, wherein the liquid refrigerant storing cooling energy cooled by the operation of the cooler for a predetermined time is circulated through the heat exchange unit, and the air flowing from the outside is cooled through the heat exchange with the heat exchange unit to be discharged.

Description

{AIR CONDITIONER, USING COOLING-ENERGY}

The present invention relates to an air conditioner using cooling energy, and more particularly, to an air conditioner using cooling energy, and more particularly, to an air conditioner for cooling a liquid refrigerant filled in an inner chamber of a device at midnight, And a heat exchanging unit for exchanging heat between the gas introduced from the outside and the liquid refrigerant passing through the heat exchanging unit.

The term "thermal environment" refers to all environmental factors that affect the thermal sensation surrounding the human body. It refers to basic elements such as temperature, humidity, radiation and air flow, and age, sex, constitution , And habits. Generally speaking, if more than 80% of occupants are satisfied with the indoor environment, it is defined as a psychological condition which is considered pleasant.

On the other hand, the continuous development and growth of the economy brought about the increase of the national income and the quality of life, and as a result, the consumer's desire for the comfortable space increased and the air conditioner Interest and demand are on the rise.

The air conditioner is an air conditioning plant that maintains the temperature, humidity, airflow, and cleanliness of the indoor space in an artificial state desired by the user. The air conditioning system is an air conditioning plant that has recently been improved in performance, miniaturization, A variety of products are on the market.

However, there is a problem that the energy consumption efficiency is extremely low, and it is a serious burden to the power consumption in all industries including households.

Therefore, the development of an energy-saving type, that is, a high-efficiency air conditioner capable of reducing energy consumption, has been continuously developed with great interest. However, it has not achieved remarkable expectations yet.

In order to solve all of these problems, Korean Utility Model Registration No. 20-0215228 discloses a heat exchanger between a high-temperature gas refrigerant reaching a condenser from a compressor and a low-temperature gas refrigerant reaching a compressor from an evaporator, And an energy-saving air conditioner in which condenser load of a condenser is reduced. However, the technical focus of the energy saving has only been adjusted to improve the performance of the apparatus. Existing problems remain.

Also, in the above-mentioned prior art, since the rapid cooling operation must be performed, the structure such as a large capacity compressor must be used, which requires a lot of manufacturing cost of the apparatus, The amount of power consumed during the operation is excessively consumed.

In order to solve the above problems, the present applicant has filed a patent application No. 10-2015-0015839 (a quench freezing device using cooling energy), but in the case of the invention of the present application, There has been a problem that the inside is formed by the steam contained in the outside air and the heat transfer is obstructed.

Korean Utility Model Registration No. 20-0215228 (Registration date: December 18, 2000)

An object of the present invention is to solve the above problems, and it is an object of the present invention to provide an internal chamber surrounded by a urethane foam inside a housing, circulating a liquid refrigerant filled in an inner chamber and performing heat exchange with external air through a heat- And an air conditioner using the cooling energy that can be cooled by the temperature.

According to an aspect of the present invention, there is provided an air conditioner using cooling energy,

A shaft cooling chamber for accommodating liquid refrigerant for cooling the inner chamber, which is an inner space of the inner housing, and a heat insulating material is interposed between the outer housing and the inner housing;

A cooler that includes a compressor, a condenser, and an evaporator for cooling the liquid refrigerant, and cools the liquid refrigerant through heat exchange with the evaporator;

A heat exchange unit circulating the liquid refrigerant contained in the inner chamber to the outside of the housing to perform heat exchange with the air introduced from the outside, and circulating the liquid refrigerant to the inner chamber; And

And a cool air adjusting means for adjusting the temperature of the gas discharged to the outside through the control of the inflow amount of the outside air mixed with the gas cooled by the heat exchange with the heat exchanging unit,

The liquid refrigerant that is cooled by the operation of the cooler for a predetermined time and stores the cooling energy is circulated through the heat exchange unit so that the air introduced from the outside is cooled and discharged through heat exchange with the heat exchange unit.

In this case, the heat exchange unit may include: a liquid refrigerant suction pipe in which the liquid refrigerant contained in the inner chamber is sucked; a circulation pump for drawing the liquid refrigerant out of the housing to circulate the refrigerant; a heat exchange channel connected to the circulation pump; And a liquid refrigerant discharge pipe for discharging the heat-exchanged liquid refrigerant to the inner chamber again.

In addition, the evaporator is located in the inner chamber, and a fixing frame for supporting and supporting the evaporator included in the cooler is further installed in the inner chamber,

The fixing frame is a perforated plate formed by bending a thin plate-shaped metal plate to form an inner hollow cylindrical shape and having a plurality of through holes uniformly spaced from one another at regular intervals for smooth flow of liquid refrigerant circulated in the inner chamber .

The heat exchange passage may include an intake chamber accommodated in the heat exchange chamber and through which external air flows into the heat exchange chamber, an exhaust chamber through which the cooled air is discharged to the outside, an inflow pipe portion connected to the cool air regulation means, Further comprising: a mixing chamber in which outside air introduced through the heat exchange chamber is mixed with cool air cooled through the heat exchange chamber, and a blower for providing power for introducing outside air,

A first temperature sensor for measuring the temperature of the air sucked from the outside, a second temperature sensor for measuring the temperature of the cool air passing through the heat exchange chamber, and a third temperature sensor for measuring the temperature of the air mixed and discharged in the mixing chamber The amount of air introduced through the cool air control means is controlled by the control unit so that the temperature of the discharged air is maintained at a predetermined temperature based on the temperature information.

In addition, an agitation screw may be further provided at an inner center of the inner chamber to circulate the liquid refrigerant filled in the inner space by the formation of forced convection.

Further, the evaporator may be closely attached to the fixing frame such that the evaporator is uniformly distributed over the entire surface of the fixing frame, with a staggered refraction pattern arrangement structure.

In the air conditioner using the cooling energy according to the present invention,

 A three-way valve coupled between the circulation pump and the heat exchange channel;

Further comprising a vent pipe connected at one end to the three-way valve and at the other end to an upper portion of the inner chamber,

When the flow path to the circulation pump is blocked by the adjustment of the three-way valve and the vent pipe is connected to the heat exchange channel, the liquid refrigerant filled in the heat exchange channel is recovered into the inner chamber to block heat loss to the outside .

As can be clearly understood from the above description, the air conditioner using the cooling energy of the present invention can cool the liquid refrigerant for a sufficient period of time without using the air conditioner, It is possible to satisfy the equipment configuration required for cooling the gas without requiring expensive equipment such as a high-performance compressor and a condenser, and at the same time, it is possible to reduce the manufacturing cost and the selling cost of the apparatus through miniaturization of the apparatus.

In addition, it is possible to cool the liquid refrigerant filled in the inner chamber by only operating the cooler in the middle of the night time when the power is remaining and low consumption, and it is possible to cool the liquid refrigerant in the inner room by using the urethane foam (insulation) It is possible to maintain the cooling state of the refrigerant, which is a very useful invention that can significantly improve the efficiency of equipment operation using cheap power.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front sectional view showing the structure of an air conditioner using cooling energy according to the present invention; FIG.
BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to an air conditioner,
FIG. 3 is a perspective view showing a configuration of a fixing frame and an evaporator in an air conditioner using cooling energy according to the present invention. FIG.
FIG. 4 is a front view of a lumbar part showing another configuration of a condenser and an evaporator in an ice-cooled refrigerator using cooling energy according to another embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

FIG. 2 is a block diagram showing an operating relationship of cool air control means in the air conditioner using the cooling energy according to the present invention, and FIG. FIG. 3 is a perspective view showing a configuration of a fixing frame and an evaporator of the air conditioner using the cooling energy according to the present invention, FIG. 4 is a perspective view of the air conditioner using the cooling energy according to another embodiment of the present invention, Fig.

As shown in FIG. 1, the air conditioner A using the cooling energy according to the present invention is configured to receive liquid refrigerant for cooling the inner chamber 11, which is an inner space of the inner housing 1-1, A condenser (33) and an evaporator (32) for cooling the liquid refrigerant; and a heat exchanger for exchanging the liquid refrigerant with the evaporator through heat exchange with the evaporator A heat exchanging unit (20) for circulating the liquid refrigerant contained in the inner room to the outside, heat-exchanging the air with the air introduced from the outside, and circulating the liquid refrigerant to the inner room; and a heat exchanger And a cool air adjusting means (4) for adjusting the temperature of the gas exhausted to the outside through controlling the inflow amount of the outside air mixed with the gas.

The air conditioner using the cooling energy according to the present invention circulates the liquid refrigerant that is cooled by the operation of the cooler for a certain period of time and stores the cooling energy through the heat exchange unit so that the air introduced from the outside is cooled and discharged through heat exchange with the heat exchange unit .

The inner space (inner chamber) of the axial cooling chamber is filled with liquid cooling medium for cooling, cooled by the cooling unit, and then used for the operation of the air conditioner. The axial cold room 1 includes an inner housing 1-1, an outer housing 1-2 and a heat insulating material 12 interposed therebetween. The heat insulating material may be urethane foam, styro foam, or the like in order to maintain the temperature of the inner chamber and the liquid refrigerant. Although not shown in the drawings, the inlet pipe may be connected to the inner chamber through the side wall of the axial cold chamber, and the liquid refrigerant may be supplemented through the inlet pipe.

In the middle of the inner chamber 11, a forced convection (forced convection) is generated by a mechanical force acting on the fluid, so that the liquid refrigerant filled in the inner chamber 11 can be circulated A stirring screw 17 is additionally provided.

This is because when the liquid refrigerant is mixed with the antifreeze and water, the antifreeze and water are mixed at a ratio of 6: 4 so that the mixed antifreeze does not freeze at -40 ° C. It is possible to prevent breakage of the mechanical device when it is separated and thereby freeze, and the heat exchange efficiency according to the circulation flow is greatly increased.

On the other hand, the agitation screw 17 described above allows a separate motor (not shown) or the motor and gear device (not shown) to be connected to the shaft for mechanical rotation drive.

The liquid refrigerant contained in the inner chamber is cooled by the cooler. The cooler 3 is for cooling the liquid refrigerant filled in the inner space 11 of the axial chamber 1 and includes a compressor 31 for compressing the refrigerant for cooling the inner chamber 11, An evaporator 32 that conveys the heat of the inner chamber 11 and evaporates the refrigerant transferred from the compressor 31 and a condenser 31 that condenses the refrigerant transferred from the evaporator 32 to the compressor 31, and a condenser 33.

The air conditioner is operated at a time when the air conditioner is not used. The air conditioner is operated to cool and discharge the air from the outside.

A heat exchange unit 20 is provided for heat exchange between the air introduced from the outside and the liquid refrigerant. The heat exchange unit 20 includes a liquid refrigerant suction pipe 201 for sucking liquid refrigerant contained in the inner chamber, a circulation pump 202 for circulating liquid refrigerant out of the housing to circulate the liquid refrigerant, a heat exchange channel 203 connected to the circulation pump, A cooling fin 204 disposed in the heat exchange passage for increasing the heat exchange efficiency with the liquid refrigerant, and a liquid refrigerant discharge pipe 205 for flowing the heat-exchanged liquid refrigerant back to the inner chamber.

The sufficiently cooled liquid refrigerant is drawn up by the circulation pump 202 and circulated in the liquid refrigerant suction pipe 201, the heat exchange flow path 203 and the liquid refrigerant discharge pipe 205 in that order. The inlet of the liquid refrigerant suction pipe 201 is positioned so as to be positioned close to the bottom surface of the inner chamber 11 so that the cold liquid refrigerant is introduced so that the outlet of the discharge pipe 205 is submerged in the liquid refrigerant, .

Heat exchange between the air introduced from the outside and the liquid refrigerant is performed in the heat exchange chamber (21). The heat exchange channel 203 is disposed inside the heat exchange chamber and heat exchange between the air and the liquid refrigerant is enabled in a short time through the cooling fins 204 having a plurality of heat transfer channels connected to the periphery of the heat exchange channel. The heat exchanged liquid refrigerant is returned to the inner chamber (11) and continuously circulates and exchanges heat with air.

In the case of a normal air conditioner, even if the evaporator does not perform sufficient heat exchange with the outside air, a large load is applied to the compressor, which results in a decrease in efficiency. However, in the case of the air-cooled air conditioner according to the present invention, And the remaining cooling energy is returned to the inner chamber, thereby minimizing waste energy.

Also, in the case of a normal air conditioner, a compressor and a condenser having a large capacity must be used in order to sufficiently cool the outside air. On the other hand, in the case of the air conditioner using the cooling energy according to the present invention, Therefore, it is possible to use a relatively small compressor and condenser. In addition, there is an advantage that it is suitable for use as a mobile air conditioner because there is no outdoor unit for discharging hot air when used as an air conditioner after the cooling.

The evaporator (32) of the cooler is located in the inner chamber (11), and a fixing frame (16) for supporting and supporting the evaporator included in the cooler is further installed in the inner chamber,

In order to smoothly flow the liquid refrigerant circulated in the inner chamber, a number of through holes (161) are uniformly distributed on the entire surface at regular intervals and at equal intervals, And is a perforated plate formed through the through holes.

 In the inner chamber 11, a fixing frame 16 for supporting and supporting the evaporator among constituent elements of the cooler 3 is further provided. The fixing frame 16 is made of a thin metal plate But it is not necessarily limited to this, but it may be formed in a cylindrical shape differently depending on the structure of the refrigeration apparatus.

Further, when the liquid refrigerant filled in the inner chamber 11 is circulated by the stirring screw, which will be described later, the fixing frame 16 is provided with a large number of through holes 161 at constant and uniform intervals (Perforated grille) which is formed by penetrating through the surface in an even distribution.

In addition, the evaporator 32 may be closely attached to the fixing frame such that the evaporator 32 is evenly distributed over the entire surface of the fixing frame.

The cool air adjusting means 4 is for controlling the amount of outside air to be mixed with the cool air cooled through the heat exchange chamber so as to discharge the temperature of the cool air discharged outside through the exhaust chamber 19 to a user set temperature Thereby adjusting the temperature of the finally discharged air. The cool air adjusting means 4 is provided at a position adjacent to the mixing chamber 24 and is provided with an air control valve 24 for controlling the inflow amount of the gas flowing into the mixing chamber 24 by varying the opening degree of the inlet. valve, but the present invention is not limited to this, and it is possible to adopt it if it is an electronic device that exhibits the same action and effect.

A control unit is further provided to control the temperature of the finally discharged air to a user-set temperature. (S-1) for measuring the temperature of the air introduced from the outside, a second temperature sensor (s-2) for measuring the temperature of the air cooled through the heat exchange chamber, and a temperature sensor 3, the information measured through each temperature sensor is transmitted to the control unit 50, and the control unit controls the degree of opening of the cold air adjusting unit 4 to control the temperature of the heat exchange chamber (s- 21 to regulate the amount of air that is cooled and mixed with the outside air.

Here, the cold air discharge setting according to the above-described operation can be directly performed by a user using a controller (not shown) mounted on the outside of the air conditioner A or a separate portable controller (such as a remote controller) (Liquid crystal or the like).

In the air conditioner using the cooling energy according to the present invention,

 Way valve 220 coupled between the circulation pump and the heat exchange channel and a vent pipe 210 connected at one end to the three-way valve 220 and connected to the upper portion of the inner chamber When the flow path to the circulation pump is blocked by the adjustment of the three-way valve 220 and the vent pipe 210 is connected to the heat exchange channel 203, the liquid refrigerant filled in the heat exchange channel flows into the inner chamber 11, So that heat loss to the outside can be prevented.

When the three-way valve is adjusted, the gas in the upper portion of the inner chamber flows into the heat exchange channel, and the liquid refrigerant in the heat exchange channel is recovered into the inner chamber. This is to minimize the heat loss to the outside while the air conditioner is not running for a long time.

The operation of the air conditioner using the cooling energy according to the present invention will be described. The cooler is operated at a time when the operation of the air conditioner is not required, so that the liquid refrigerant contained in the inner chamber is sufficiently cooled. The loss of cold air can be suppressed to the utmost by the heat insulating material 12 embedded between the inner housing and the outer housing of the axial cooling chamber so that the cooled state introduced into the inner chamber 11 by using the midnight time is sufficiently So that the gas can be cooled during the daytime.

If the cooling state is not good, it is possible to adjust the internal temperature of the inner chamber 11 for gas cooling by operating the cooler 3 for a short time using a small amount of electric power, The efficiency of the system can be demonstrated.

Next, a description will be made of an embodiment of the air conditioner (A) using the cooling energy of the present invention according to the present invention by turning on the power using an external control panel or a separate remote control, Operate the device to discharge.

The blower b that provides the power to suck the outside air operates, and the circulation pump 202 of the heat exchange unit 20 operates. The liquid refrigerant stored in the inner chamber is circulated through the heat exchange passage 203 and the outside air is introduced into the heat exchange chamber 21 to be cooled. The cooled air moves to the mixing chamber (24). The outside air introduced through the cold air adjusting means 4 is mixed with the air cooled in the mixing chamber 24 and discharged through the exhaust chamber 19 to a temperature desired by the user.

In the course of passing through the mixing chamber 24, a temperature change is caused by cool air having an appropriate indoor temperature (about 17-28 ° C) according to user setting. This is because the temperature of the outside air flowing through the cool air adjusting unit 4 The mixing amount of the air and the outside air mixed with each other in the mixing chamber 24 can be changed by controlling the inflow amount.

In summary, it is easy to cool the air by the air conditioner (A) using the cooling energy according to the present invention, and the power consumption and the apparatus operation cost are greatly reduced according to the apparatus operation using the nighttime electricity, It is possible to reduce the energy consumption by significantly reducing the amount of energy consumed and to simplify the structure of the apparatus by cooling the gas only by the refrigerant alone. You can get the effect.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications may be made without departing from the scope and spirit of the invention.

A: air conditioner 1: shaft cooling chamber 1-1: inner housing
1-2: outer housing 3: cooler
4: cold air adjusting means, 5: defrosting means, 11:
12: Insulation material 14: Machine room
15: intake chamber, 17: stirring screw
19: exhaust chamber 20: heat exchange unit
21: heat exchange chamber 201: liquid refrigerant suction pipe
202: Circulation pump 203: Heat exchange channel 204: Cooling pin
205: liquid refrigerant discharge pipe 220: three-way valve 210: vent pipe
24: mixing chamber, 31: compressor
32: evaporator, 33: condenser, 50: control unit

Claims (7)

A shaft cooling chamber for accommodating liquid refrigerant for cooling the inner chamber, which is an inner space of the inner housing, and a heat insulating material is interposed between the outer housing and the inner housing;
A cooler that includes a compressor, a condenser, and an evaporator for cooling the liquid refrigerant, and cools the liquid refrigerant through heat exchange with the evaporator;
A heat exchange unit circulating the liquid refrigerant contained in the inner chamber to the outside of the housing to perform heat exchange with the air introduced from the outside, and circulating the liquid refrigerant to the inner chamber; And
And a cool air adjusting means for adjusting the temperature of the gas discharged to the outside through the control of the inflow amount of the outside air mixed with the gas cooled by the heat exchange with the heat exchanging unit,
The liquid refrigerant that has been cooled by the operation of the cooler for a certain period of time and circulates the liquid refrigerant storing the cooling energy is circulated through the heat exchange unit so that the air introduced from the outside is cooled through heat exchange with the heat exchange unit,
The heat exchange unit includes:
A circulation pump for circulating the liquid refrigerant to the outside of the housing; a heat exchange channel connected to the circulation pump; a cooling unit disposed in the heat exchange channel for increasing the heat exchange efficiency between the liquid refrigerant and the liquid refrigerant; And a liquid refrigerant discharge pipe for flowing the liquid refrigerant finned and heat-exchanged to the inner chamber again,
Wherein the heat exchange passage is accommodated in the heat exchange chamber and includes an intake chamber into which external air flows into the heat exchange chamber, an exhaust chamber through which the air cooled through heat exchange is discharged to the outside, Further comprising a mixing chamber for mixing the outdoor air with the cooled cold air passing through the heat exchange chamber and a blower for supplying power for introducing outside air,
A first temperature sensor for measuring the temperature of the air sucked from the outside, a second temperature sensor for measuring the temperature of the cool air passing through the heat exchange chamber, and a third temperature sensor for measuring the temperature of the air mixed and discharged in the mixing chamber And the amount of air introduced through the cool air control means is controlled by the control unit so that the temperature of the discharged air is maintained at the set temperature based on the temperature information.
delete The method according to claim 1,
The evaporator is located in the inner chamber,
A fixing frame for supporting and supporting the evaporator included in the cooler is further provided inside the inner chamber,
The fixing frame is a perforated plate formed by bending a thin plate-shaped metal plate to form an inner hollow cylindrical shape and having a plurality of through holes uniformly spaced from one another at regular intervals for smooth flow of liquid refrigerant circulated in the inner chamber Air conditioner using the cooling energy which is characteristic.
delete The method according to claim 1,
Wherein an agitating screw is further provided at an inner center of the inner chamber so as to circulate the liquid refrigerant filled in the inner space by the formation of forced convection.
The method of claim 3,
Wherein the evaporator is disposed in close contact with an arrangement structure of a staggered refraction pattern so as to be evenly distributed over the entire surface of the fixing frame.
The method according to claim 1,
A three-way valve coupled between the circulation pump and the heat exchange channel;
Further comprising a vent pipe connected at one end to the three-way valve and at the other end to an upper portion of the inner chamber,
Wherein when the flow path to the circulation pump is blocked by the adjustment of the three-way valve and the vent pipe is connected to the heat exchange channel, the liquid refrigerant filled in the heat exchange channel is recovered into the inner chamber to block heat loss to the outside. Air conditioner using cooling energy.

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