KR102147578B1 - Humidifier with cooling and heating function - Google Patents

Abstract

The present invention relates to an integrated cooling and heating dehumidifier capable of cooling, heating, and dehumidification using an air conditioner type refrigeration cycle in which a condenser and an evaporator are fixed and operated without changing roles, not a heat pump type. In addition, the present invention relates to an integrated cooling/heating dehumidifier capable of defrosting without an auxiliary means such as an electric heater or reverse cycle operation, even when defrosting is required due to frost formation in the evaporator during dehumidification mode or heating operation.

Description

Integrated cooling and heating dehumidifier{Humidifier with cooling and heating function}

The present invention relates to an integrated cooling and heating dehumidifier capable of cooling, heating, and dehumidification using an air conditioner type refrigeration cycle in which a condenser and an evaporator are fixed and operated without changing roles, not a heat pump type. In addition, it relates to an integrated cooling and heating dehumidifier capable of defrosting without auxiliary means such as an electric heater or reverse cycle operation, even when defrosting is required due to frost formation in the evaporator during dehumidification or heating operation.

In order to store agricultural and fishery products for a long period of time or keep them in the best condition, not only temperature but also humidity must be properly controlled. Therefore, demand for agricultural and marine products storage warehouses or drying rooms that can control not only temperature but also humidity is increasing.

In order to control humidity and temperature, at least two devices are used as shown in FIGS. 1(a) to (d). That is, in the summer, as shown in Fig. 1A, the air conditioner is used for cooling, and in the winter season, as shown in Fig. 1B, heating is performed using an electric heat heater or an oil/gas boiler, as shown in Fig. 1C. And, as shown in Fig. 1d, the humidity must be adjusted using a dehumidifier.

Recently, as shown in FIG. 2, farm households using a heat pump capable of cooling and heating with a single device due to operating costs and environmental problems are also gradually increasing. However, even if cooling and heating is performed using a heat pump, one more dehumidifier is required for dehumidification. In addition, when the space temperature is controlled using a heat pump, if the space temperature is lower than the set temperature, and the space temperature is higher than the temperature set by the heating operation, the operation mode must be continuously changed to the cooling operation.

In the case of a heat pump, in order to switch from a cooling operation to a heating operation or from a heating operation to a cooling operation, it is necessary to change the flow direction of the refrigerant using four sides. That is, in order to convert from cooling to heating or from heating to cooling, the following procedure is required. ① Stop the compressor and wait until the pressure of the high pressure part and the low pressure part become the same. ② When the pressure is reached, the valve direction is changed by operating all sides. ③ Restart the compressor. Therefore, during the process ① ~ ③, the heat pump must stop working, and there is a problem that it takes a certain amount of time until the compressor is restarted and reaches the normal state (normal output). In addition, frequent compressor intermittent operation is a cause of shortening the life of the compressor. Therefore, it is undesirable to switch the operating mode by stopping the compressor.

In addition, in the conventional invention, when the device is operated by heating, if the humidity of the outdoor air is high, frost is formed on the surface of the evaporator, requiring periodic defrosting. In order to defrost through reverse cycle operation, which is the most used defrost method, it is required to change the operation mode as described above. In this case, it is necessary to switch the four sides twice. That is, ① Stop the compressor and wait until the pressure of the high pressure part and the low pressure part become the same. ② When the pressure is reached, all sides are operated to change the valve direction from heating to cooling mode. ③ Then, run the compressor to perform cooling operation. ④ When the frost of the evaporator is completely melted by the heat of condensation, stop the compressor and wait until the pressure of the high pressure part and the low pressure part become the same. ⑤ When the pressure is reached, all sides are operated to change the valve direction from cooling to heating. ⑥ Restart the compressor to operate heating. Therefore, when the defrost operation is performed, heating is impossible for about 3 to 10 minutes, and there is a problem in that it is necessary to wait for a certain time to reach the normal output after the defrost operation.

In the case of using a dehumidifier, like a heat pump, if it is used for a long time under low temperature and high humidity conditions, frost will form on the dehumidifying coil and defrost operation is required. In the heat pump type dehumidifier, defrost is performed by the above-described heat pump defrost method, that is, the reverse cycle operation method, and in the air conditioner type dehumidifier, the compressor is stopped and the dehumidifying coil is naturally defrosted by waiting for it to melt. Therefore, even when the dehumidifier is operated, there is a problem that the dehumidification is stopped when an implantation occurs.

Korean Patent No. 1700242 Korean Patent Application Publication No. 2013-0013576

Therefore, the present invention was devised to solve the conventional problems as described above, and according to an embodiment of the present invention, two heat exchangers constituting a single cooling cycle are always fixed to a condenser and an evaporator without changing roles, while dehumidifying space. In addition, its purpose is to provide an integrated air conditioning dehumidifier capable of cooling, heating, and defrosting.

In addition, the present invention is to solve the above problems, according to an embodiment of the present invention, when changing from a heating operation to a cooling operation or conversely from a cooling operation to a heating operation in order to control the target space to a certain temperature Like a pump, the condenser and evaporator do not change the role of the condenser and evaporator. Regardless of the operation mode, the condenser is always a condenser, and the evaporator is always fixed to the evaporator. It is to provide an integrated air conditioning and heating dehumidifier. Another object of the present invention is to provide an integrated cooling/heating dehumidifier capable of defrosting without auxiliary means such as an electric heater or reverse cycle operation even when defrosting is required due to the occurrence of frost in the evaporator during dehumidification or heating operation.

Meanwhile, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

An object of the present invention is a cooling and heating dehumidifier capable of cooling, heating, defrosting, and dehumidifying modes through one air conditioning cycle, comprising: a first-stage machine room unit having a compressor therein; The first motorized louver is located on the upper side of the first stage machine room and connected to the indoor space side in the front direction, the second motorized louver connected to the outdoor space side in the rear direction, the evaporator installed in the center, and provided in front of the evaporator. A third stage evaporator having a first blower and a second blower, and a third blower installed at the rear of the evaporator; A fourth electric louver connected to an indoor space, a fifth electric louver connected to an outdoor space, a condenser installed in the center, and provided in front of the condenser, located between the first-stage machine room part and the third-stage evaporator part. A second-stage condenser unit including a fourth blower, a fifth blower, and a sixth blower installed at the rear of the condenser; disposed between the rear lower end of the third stage evaporator unit and the rear upper end of the second stage condenser unit A third electric louver; And a controller for controlling the operation of the first to sixth blowers and the first to fifth electric louvers.

And in the first dehumidification mode, the control unit stops the first, second, and third blowers of the third stage evaporator unit, and the sixth blower unit of the second stage condenser unit, and operates the fourth blower and the fifth fan, and the first The electric louver, the third electric louver, and the fourth electric louver are opened, and the second electric louver and the fifth electric louver are controlled to be closed, and air is sucked from the first electric louver and passed through the evaporator to undergo dehumidification. , Air passing through the evaporator may be introduced into the second stage condenser unit along the third electric louver, passed through the condenser, heated, and then supplied to the room through the fourth electric louver.

In addition, after the first dehumidification mode operation, when frost is formed in the evaporator and the dehumidification performance is deteriorated, the second dehumidification mode is operated. In the second dehumidification mode, when frost is formed in the evaporator, the electric louver is a first dehumidification mode. And the control unit operates the first and second blowers, and controls the third, fourth, fifth, and sixth blowers to switch to a stopped state, and air is sucked into the fourth electric louver. After passing through the condenser, it is introduced into the third stage evaporator through the third electric louver, and the air entering the third stage evaporator is dehumidified by the evaporator and then supplied to the room through the first electric louver. I can.

And when the frost is not removed during the operation of the second dehumidification mode, the defrost mode is operated, and in the defrost mode, the control unit opens the third electric louver and opens the first, second, fourth, and fifth electric louvers. Close, stop the first blower and the fifth blower, and control to operate the second, third, fourth, and sixth blowers, so that the internal air is blocked from the external air, and the air inside the integrated cooling and heating dehumidifier is When the sixth blower is operated, the sixth blower sucks air in front of the condenser and discharges it to the rear of the condenser, and the air that has passed through the condenser is discharged from the rear of the evaporator to the front of the evaporator by the second blower, and the air that has passed through the evaporator is Since the third blower operates, it is again blown from the front of the evaporator to the rear of the evaporator (outdoor direction), and the blown air is sucked into the second stage condenser unit through the third electric louver by the suction force of the fourth blower and passes through the condenser. The heated air may be blown from the front of the condenser to the rear of the condenser by the sixth blower, and a repetitive air circulation process is performed inside the cooling/heating dehumidifier.

In addition, during the cooling operation, the control unit stops the fifth blower of the second stage condenser unit and the first blower of the third stage evaporator unit, and the fourth and sixth blowers of the second stage condenser unit, and the second stage of the third stage evaporator unit. The blower and the third blower are operated, the second electric louver, the third electric louver, and the fourth electric louver are closed, and the first electric louver and the fifth electric louver are controlled to open, so that the indoor air is controlled by the suction power of the third fan. As a result, it is sucked through one side of the first motorized louver and cooled while passing through the evaporator. At the same time, the second blower sucks air from the rear of the evaporator, so the air that has passed to one side of the evaporator is U-turned inside and passes back to the other side of the evaporator. After re-cooling in the first motorized louver, it is supplied indoors through the other side of the first motorized louver to cool the indoor space, and outdoor air is sucked through one side of the fifth motorized louver by the suction power of the fourth blower and passes through the condenser. While absorbing the heat of condensation, the air that passed to one side of the condenser U-turns inside and passes to the other side of the condenser again because the 6th blower sucks the air in front of the condenser. It may be characterized in that it is discharged to the outside through the other side of the louver.

And during the heating operation, the control unit stops the fifth blower of the second stage condenser unit and the first blower of the third stage evaporator unit, and the fourth and sixth blowers of the second stage condenser unit, and the second blower of the third stage evaporator unit And a third blower, the first electric louver, the third electric louver, and the fifth electric louver are closed, and the second electric louver and the fourth electric louver are controlled to open, so that the outdoor air is supplied by the suction power of the second blower. It is sucked through the other side of the second electric louver and passes through the evaporator to transfer the evaporation heat to the evaporator, and since the third blower sucks the air in front of the evaporator, the air that has passed to the left of the evaporator U-turns inside and passes back to one side of the evaporator. Thus, after transferring the evaporation heat to the evaporator again, the air is discharged to the outside through one side of the second electric louver, and the indoor air is sucked through the other side of the fourth electric louver by the suction power of the sixth blower and passes through the condenser. And the fourth blower inhales air from the rear of the condenser, so the air that has passed to the other side of the condenser is U-turned inside and passes back to one side of the condenser, and the warm air that has absorbed the heat of condensation from the condenser again is on one side of the fourth electric louver. It may be characterized by heating the indoor space while being discharged to the outside through the.

According to the integrated cooling/heating dehumidifier according to the embodiment of the present invention, since dehumidification, cooling, and heating are all possible with one device composed of a single refrigeration cycle, initial investment and operating costs can be reduced compared to the conventional case in which a heat pump and a dehumidifier are operated respectively. have. Table 1 compares the number of parts required for the device configuration when cooling/heating and dehumidifying using one heat pump and one dehumidifier and cooling/heating and dehumidifying through the integrated cooling/heating dehumidifier according to the present invention as in the previous case. I did it. As can be seen from Table 1, it has the effect of reducing the number of required parts in half compared to the conventional case in performing the cooling, heating and dehumidification functions.

division compressor evaporator
(Dehumidification coil) Condenser
(Heating coil) Expansion valve All sides air blower Existing device Heat pump One 2 One 2 One 2 2 3 One One 3 5 Dehumidifier (air conditioner type) One One One One 0 2 Device according to the invention One One One One 0 6

(Comparison of the existing case and the required parts according to the present invention)

In addition, according to the integrated cooling/heating dehumidifier according to an embodiment of the present invention, since it is possible to change the mode from cooling to heating or from heating to cooling without stopping the compressor, the device operation rate, system performance, compressor life, etc. are relatively excellent.

In addition, according to the integrated cooling/heating dehumidifier according to the embodiment of the present invention, the system configuration is simple because there is no need for parts such as four sides and check valves required for the refrigeration cycle configuration of the heat pump method, so that the risk of failure is low and the productivity is good. Have.

In addition, in the case of the heat pump method, a heat exchanger with a fixed size must be replaced with a condenser or evaporator according to the cooling/heating operation mode, so that the size of the heat exchanger is designed to match the heating performance or cooling performance. That is, if the design is optimized for heating performance, the cooling performance is relatively deteriorated, and if the design is matched for the cooling performance, the heating performance is deteriorated. Since the condenser and evaporator are always fixed as an evaporator, it has the effect of realizing the best performance.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

The following drawings attached to the present specification illustrate a preferred embodiment of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in such drawings. It is limited and should not be interpreted.
1(a) is a diagram showing a cooler (air conditioner) according to the prior art.
1(b) is a diagram showing an electric heater according to the prior art.
1(c) is a diagram showing a boiler according to the prior art.
1(d) is a diagram showing a dehumidifier according to the prior art.
2 is a diagram showing a heat pump according to the prior art.
3 is a perspective view, an exploded perspective view of an integrated air conditioning dehumidifier according to the present invention,
4 is a side cross-sectional view and a flat cross-sectional view for explaining the configuration and refrigeration cycle of the integrated air conditioning dehumidifier according to the present invention in detail;
5 is a side cross-sectional view and a flat cross-sectional view illustrating a first dehumidification operation of the integrated cooling and heating dehumidifier according to the present invention;
6 is a side cross-sectional view and a flat cross-sectional view illustrating a second dehumidification operation of the integrated cooling and heating dehumidifier according to the present invention;
7A is a side cross-sectional view illustrating a defrosting operation of the integrated cooling/heating dehumidifier according to the present invention,
7B is a perspective view and an exploded perspective view illustrating a defrost operation of the integrated cooling and heating dehumidifier according to the present invention,
8 is a side cross-sectional view and a top cross-sectional view illustrating a cooling operation of the integrated cooling/heating dehumidifier according to the present invention;
9 is a side cross-sectional view and a top cross-sectional view illustrating a heating operation of the integrated cooling/heating dehumidifier according to the present invention;
10 is a view for explaining a method of improving cooling efficiency using condensed water that naturally falls when the integrated cooling/heating dehumidifier according to the present invention is operated by cooling.

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed contents may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, when a component is referred to as being on another component, it means that it may be formed directly on the other component or that a third component may be interposed between them. In addition, in the drawings, the thickness of the components is exaggerated for effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective description of technical content. Accordingly, the shape of the exemplary diagram may be modified by manufacturing technology and/or tolerance. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include a change in form generated according to the manufacturing process. For example, an area shown at a right angle may be rounded or may have a shape having a predetermined curvature. Accordingly, the regions illustrated in the drawings have properties, and the shapes of the regions illustrated in the drawings are intended to illustrate a specific shape of a device region and are not intended to limit the scope of the invention. In various embodiments of the present specification, terms such as first and second are used to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one component from another component. The embodiments described and illustrated herein also include complementary embodiments thereof.

The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, a number of specific contents have been prepared to explain the invention in more detail and to aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not largely related to the invention are not described in order to prevent confusion without any reason in describing the invention.

Hereinafter, a configuration of an integrated cooling/heating dehumidifier according to the present invention will be described.

The integrated cooling/heating dehumidifier according to the present invention includes a condenser, an evaporator, first to sixth blowers, first to fifth electric louvers, and a machine room, as shown in FIG. 3.

Components constituting a single refrigeration cycle, such as a compressor (not shown) and a gas-liquid separator (not shown), are installed in the machine room according to the present invention.

4 is a diagram illustrating the configuration and refrigeration cycle of the integrated air conditioning dehumidifier according to the present invention in detail. The top view of FIG. 4 is a side cross-sectional view of the integrated cooling/heating dehumidifier according to the present invention, the middle view is an A-A cross-sectional view of the top view, and the lower view is a B-B cross-sectional view of the top view.

At the third end, a first electric louver is connected to the indoor space, and the second electric louver is connected to the outdoor space. In addition, the third motorized louver is connected to the inner space of the second end. An evaporator is installed in the center, a first blower and a second blower are installed in close contact with the front (indoor direction) of the evaporator, and a third blower is closely installed in the rear (outdoor direction).

At the second end, a fourth electric louver is connected to the indoor space, and the fifth electric louver is connected to the outdoor space. A condenser is installed in the center, a fourth blower and a fifth blower are installed in close contact with the front (indoor direction) of the condenser, and a sixth blower is closely installed in the rear (outdoor direction). Most of the refrigeration cycle parts including the compressor are installed in the first stage machine room.

Hereinafter, a method of operating the integrated cooling/heating dehumidifier according to the present invention will be described. As will be described below, the integrated cooling/heating dehumidifier according to the present invention can perform first and second dehumidification operations, defrost operations, cooling operations, and heating operations without stopping the compressor operation and converting the refrigerant flow.

5 is an explanatory diagram for a case where the integrated air conditioning dehumidifier according to the present invention is operated in a first dehumidification mode. The left side of FIG. 5 is a side cross-sectional view of an integrated air conditioning/heating dehumidifier operated in the first dehumidification mode, the upper right is a top sectional view of the third stage evaporator, and the lower right is a top sectional view of the second stage condenser unit.

In the case of the first dehumidification operation, the first, second, and third blowers of the third stage and the sixth blower of the second stage are stopped, and only the fourth and fifth fans are operated. In addition, the first electric louver, the third electric louver, and the fourth electric louver are in an open state, and the second electric louver and the fifth electric louver are in a closed state. Therefore, air is sucked from the first electric louver and passes through the evaporator to undergo dehumidification. The air that has passed through the evaporator flows into the second stage along the third automatic louver, enters the condenser, is heated, and is supplied to the room through the fourth electric louver.

6 is a diagram illustrating a case of operating the integrated cooling/heating dehumidifier according to the present invention in a second dehumidification mode. The left side of FIG. 5 shows a side cross-sectional view of the integrated air conditioning/heating dehumidifier operated in the second dehumidification mode, the upper right is a top sectional view of the third stage evaporator, and the lower right is a top sectional view of the second stage condenser unit.

When the integrated cooling/heating dehumidifier is operated in the first dehumidification mode under low temperature conditions for a long time, frost is formed on the evaporator and dehumidification performance is deteriorated. To prevent this, the second dehumidification mode is operated. When frost builds on the evaporator, the electric louver maintains the same state as the first dehumidification operation (the first electric louver, the fourth electric louver open, the second electric louver, the third electric louver, and the fifth electric louver closed). The 1 blower and the second blower are operated, and the remaining third, fourth, fifth, and sixth blowers are switched to a stopped state. Then, the air is sucked into the fourth electric louver, passes through the condenser, and enters the third stage through the third electric louver. The air entering the third stage is dehumidified by the evaporator and then supplied to the room through the first electric louver. Since the air is first heated in the condenser and then passed through the evaporator, any frost that has deposited on the evaporator can be removed naturally.

However, if the frost is formed hard due to various reasons, the frost is not easily removed by the second dehumidifying operation method. In this case, the defrost operation mode is used to defrost. 7(a) and 7(b) are diagrams for explaining a case of defrosting the integrated cooling/heating dehumidifier according to the present invention. In the case of a refrigeration cycle in which an evaporator and a condenser are fixed like a common air conditioner, it is impossible to remove frost by sending a high-temperature refrigerant to the evaporator like a heat pump.

Therefore, in a refrigeration cycle operated like an air conditioner, the way to effectively remove frost is to supply hot air to the evaporator. The higher the temperature of the air supplied to the evaporator, the more effective it is for defrosting. 7(a) and 7(b) illustrate this method. Except for the 3rd electric louver, all electric louvers are closed. In addition, the first blower and the fifth blower are in a stopped state, and the remaining second, third, fourth, and sixth blowers are in an operating state. Therefore, the internal air is blocked from the external air, and the air inside the integrated cooling/heating dehumidifier circulates along the following path. When the sixth blower of the second stage operates, the sixth blower sucks air in front of the condenser (in the interior direction) and discharges it to the rear of the condenser (in the outdoor direction). At this time, since the air passes through the condenser, it absorbs the heat of condensation and becomes warm. The air that has passed through the condenser is discharged from the rear of the evaporator (outdoor direction) to the front of the evaporator (indoor direction) by a third-stage second blower. In other words, the warm air heated by the condenser passes through the evaporator and melts in the frost on the evaporator. The air that has passed through the evaporator is blown from the front of the evaporator (indoor direction) to the rear of the evaporator (outdoor direction) again because the third blower operates. The blown air is sucked into the second stage through the third electric louver by the suction force of the second stage fourth blower and passes through the condenser. At this time, the air is heated by the condensing heat of the condenser. The heated air is blown from the front of the condenser (in the interior direction) to the rear (in the exterior direction) of the condenser by the sixth blower, and a repetitive air circulation process is performed inside the cooling/heating dehumidifier. According to the first law of thermodynamics, the heat of condensation (transfer to the air by the condenser) is larger as the energy consumed by the compressor than the heat of evaporation (the amount of heat the evaporator absorbs from the air), so the temperature of the air gradually rises as the circulation process is repeated. . Therefore, even if the frost is not completely removed in the second dehumidification operation mode, or even if the evaporator is densely formed by the heating operation, operating the integrated cooling/heating dehumidifier in the defrost operation mode will surely remove the frost formed in the evaporator without stopping the compressor. I can.

8 is a diagram illustrating a cooling operation of the integrated cooling/heating dehumidifier according to the present invention. In the case of cooling operation, the fifth fan in the second stage and the first fan in the third stage are in a stopped state, and the fourth and sixth blowers in the second stage, and the second and third fans in the second stage are in operation. The second electric louver, the third electric louver, and the fourth electric louver are in a closed state, and the first electric louver and the fifth electric louver are open. Therefore, indoor air is sucked through the right side of the first electric louver (when viewed from the inside) by the suction force of the third blower and cooled while passing through the evaporator. At the same time, the second blower inhales air from the rear of the evaporator (outside direction), so the air that has passed to the right of the evaporator beforehand is U-turned from the inside and passes back to the left side of the evaporator (when viewed from the inside) and re-cooled in the evaporator. After that, it is supplied to the room through the left side of the first electric louver to cool the indoor space. On the other hand, outdoor air is sucked through the right side of the fifth electric louver (when viewed from the inside) by the suction power of the fourth blower and passes through the condenser to absorb the heat of condensation. Since the sixth blower sucks air in front of the condenser (in the interior direction), the air that has previously passed to the right of the condenser U-turns inside and passes back to the left of the condenser. The air that has absorbed the heat of condensation again in the condenser is discharged to the outside through the left side of the fifth electric louver (when viewed from the inside).

9 is a diagram illustrating a heating operation of the integrated air conditioning dehumidifier according to the present invention. In the case of heating operation, like cooling operation, the 5th fan in the 2nd stage and the 1st fan in the 3rd stage are in a stopped state, and the 4th and 6th fans in the 2nd stage, the 2nd and 3rd fans in the 2nd stage are operated. State. The first electric louver, the third electric louver, and the fifth electric louver are in the closed state, and the second electric louver and the fourth electric louver are open. Therefore, the outdoor air is sucked through the left side of the second electric louver (when viewed from the inside) by the suction power of the second blower, passes through the evaporator, and transfers the evaporation heat to the evaporator. Since the third blower sucks air in front of the evaporator (in the interior direction), the air that has previously passed to the left of the evaporator makes a U-turn inside and passes back to the right side of the evaporator (when viewed from inside). After transferring the evaporation heat to the evaporator again, the air is discharged to the outside through the right side of the second electric louver (when viewed from the inside). Meanwhile, indoor air is sucked through the left side (as viewed from the front) of the fourth electric louver by the suction power of the sixth blower and passes through the condenser to absorb the heat of condensation. Since the fourth blower sucks air from the rear of the condenser (outside direction), the air that has previously passed to the left of the condenser U-turns inside and passes back to the right of the condenser. The warm air that has absorbed the heat of condensation again from the condenser is discharged to the outside through the right side of the fourth electric louver to heat the indoor space. Therefore, it is possible to switch from a cooling operation to a heating operation or from a heating operation to a cooling operation only by changing the opening and closing of the first, second, fourth and fifth electric louvers without operating the compressor and the blower. Table 2 summarizes the conditions of the compressor, blower, and electric louver according to the operation mode, but as shown in Table 2, there is no need to interrupt the compressor (ON/OFF) according to the operation mode change.

First dehumidification 2nd dehumidification Defrost cooling heating compressor ON ON ON ON ON 1st blower OFF ON OFF OFF OFF 2nd blower OFF ON ON ON ON 3rd blower OFF OFF ON ON ON 4th blower ON OFF ON ON ON 5th blower ON OFF OFF OFF OFF 6th blower OFF OFF ON ON ON 1st electric louver OPEN OPEN CLOSED OPEN CLOSED 2nd electric louver CLOSED CLOSED CLOSED CLOSED OPEN 3rd electric louver OPEN OPEN OPEN CLOSED CLOSED 4th electric louver OPEN OPEN CLOSED CLOSED OPEN 5th electric louver CLOSED CLOSED CLOSED OPEN CLOSED

Figure 10 It is a figure explaining a method of improving the cooling efficiency by using the condensed water generated from the evaporator when the integrated cooling/heating dehumidifier according to the present invention is operated by cooling. In the case of the integrated cooling/heating dehumidifier according to the present invention, since the evaporator and the condenser can be arranged on a vertical line, the condensed water generated from the evaporator naturally falls into the condenser during cooling operation, thereby improving the condenser efficiency, thereby improving the cooling performance of the entire system.

In addition, the above-described apparatus and method are not limitedly applicable to the configuration and method of the above-described embodiments, but all or part of each of the embodiments may be selectively combined so that various modifications may be made. It can also be configured.

Claims (6)

In a cooling/heating dehumidifier capable of cooling, heating, defrosting, and dehumidifying modes through one air conditioning cycle,
A first-stage machine room unit provided with a compressor therein; The first motorized louver is located on the upper side of the first stage machine room and connected to the indoor space side in the front direction, the second motorized louver connected to the outdoor space side in the rear direction, the evaporator installed in the center, and provided in front of the evaporator. A third stage evaporator having a first blower and a second blower, and a third blower installed at the rear of the evaporator; A fourth electric louver connected to an indoor space, a fifth electric louver connected to an outdoor space, a condenser installed in the center, and provided in front of the condenser, located between the first-stage machine room part and the third-stage evaporator part. A second stage condenser unit including a fourth blower, a fifth blower, and a sixth blower installed at the rear of the condenser; A third electric louver provided between a rear lower end of the third evaporator unit and a rear upper end of the second stage condenser unit; And a control unit for controlling the operation of the first to sixth blowers and the first to fifth electric louvers,
In the first dehumidification mode, the control unit stops the first, second, and third blowers of the third stage evaporator unit, and the sixth blower unit of the second stage condenser unit, operates the fourth blower and the fifth fan, and operates the first electric fan. The louver, the third electric louver, and the fourth electric louver are opened, and the second electric louver and the fifth electric louver are controlled to be closed, and air is sucked from the first electric louver and passes through the evaporator to undergo dehumidification. The air passing through the evaporator flows into the second stage condenser unit along the third electric louver, passes through the condenser, is heated, and then is supplied to the room through the fourth electric louver,
After the first dehumidification mode operation, when frost is formed in the evaporator and dehumidification performance is deteriorated, the second dehumidification mode is operated, and in the second dehumidification mode, when frost is formed in the evaporator, the motorized louver is the same as the first dehumidification mode. The state is maintained, and the control unit operates the first blower and the second blower, and controls the third, fourth, fifth, and sixth blowers to switch to a stopped state, so that air is sucked into the fourth electric louver and the condenser After passing through, it is introduced into the third stage evaporator through the third electric louver, and the air entering the third stage evaporator is dehumidified by the evaporator and then supplied to the room through the first electric louver.
When the frost is not removed during the second dehumidification mode operation, the defrost mode is operated, and in the defrost mode, the control unit opens the third electric louver and closes the first, second, fourth and fifth electric louvers. , The first blower and the fifth blower are stopped and the second, third, fourth, and sixth blowers are controlled to operate, so that the internal air is blocked from the external air, and the air inside the integrated cooling and heating dehumidifier is 6 When the blower operates, the sixth blower sucks air in front of the condenser and discharges it to the rear of the condenser, and the air that has passed through the condenser is discharged from the rear of the evaporator to the front of the evaporator by the second blower, and the air that has passed through the evaporator is removed. 3 Since the blower operates, it is again blown from the front of the evaporator to the rear of the evaporator (outside direction), and the blown air is sucked into the second stage condenser through the third electric louver by the suction force of the fourth blower, passes through the condenser, and is heated. The air is blown from the front of the condenser to the rear of the condenser by the sixth blower, and a repetitive air circulation process is performed inside the cooling/heating dehumidifier.
delete delete delete The method of claim 1,
In cooling operation,
The control unit stops the fifth blower of the second stage condenser unit and the first blower of the third stage evaporator unit, and stops the fourth and sixth blowers of the second stage condenser unit, and the second and third blowers of the third stage evaporator unit. The second electric louver, the third electric louver, and the fourth electric louver are closed, and the first electric louver and the fifth electric louver are opened.
Indoor air is sucked through one side of the first electric louver by the suction power of the third blower and cooled while passing through the evaporator. At the same time, the second blower sucks air from the rear of the evaporator. After turning and passing through the other side of the evaporator again, the evaporator passes through the cooling process again, and then is supplied to the room through the other side of the first electric louver to cool the indoor space.
Outdoor air is sucked through one side of the 5th electric louver by the suction power of the 4th blower to absorb condensed heat while passing through the condenser, and since the 6th blower sucks the air in front of the condenser, the air that passed to one side of the condenser is inside An integrated air conditioning/heating dehumidifier, characterized in that the U-turn is made to pass back to the other side of the condenser, and the air absorbed by the condenser again is discharged to the outside through the other side of the fifth electric louver.
The method of claim 1,
During heating operation,
The control unit stops the fifth blower of the second-stage condenser unit and the first blower of the third-stage evaporator unit, and stops the fourth and sixth blowers of the second-stage condenser unit, and the second and third blowers of the third-stage evaporator unit. The first electric louver, the third electric louver, and the fifth electric louver are closed, and the second electric louver and the fourth electric louver are controlled to open,
The outdoor air is sucked through the other side of the second electric louver by the suction power of the second blower and passes through the evaporator to transfer the evaporation heat to the evaporator, and since the third blower sucks the air in front of the evaporator, the air passing through the left side of the evaporator is After making a U-turn from the inside, passing through one side of the evaporator again, and transferring the evaporation heat to the evaporator again, the air is discharged to the outside through one side of the second electric louver.
Indoor air is sucked through the other side of the fourth electric louver by the suction power of the sixth blower to absorb the condensed heat while passing through the condenser, and the fourth blower sucks the air from the rear of the condenser. An integrated air conditioning/heating dehumidifier, characterized in that the warm air which is U-turned to pass back to one side of the condenser and absorbed the heat of condensation again from the condenser is discharged to the outside through one side of the fourth electric louver to heat the indoor space.

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