KR102672064B1 - Integrated air conditioning with ventilation function - Google Patents

Abstract

The present invention relates to an air conditioner integrated with an outdoor unit that maintains the temperature of the indoor space to be cooled at a certain level. More specifically, an evaporator and a condenser are provided inside the main housing to form an integrated unit without distinction between the indoor unit and the outdoor unit. It relates to an integrated air conditioner that has a ventilation function to exhaust air and bring outside air into the room.

Description

Integrated air conditioning with ventilation function}

The present invention relates to an air conditioner integrated with an outdoor unit that maintains the temperature of the indoor space to be cooled at a certain level. More specifically, an evaporator and a condenser are provided inside the main housing to form an integrated unit without distinction between the indoor unit and the outdoor unit. It relates to an integrated air conditioner that has a ventilation function to exhaust air and bring outside air into the room.

In general, air conditioning maintains conditions such as indoor temperature, humidity, bacteria, odor, and air currents in a state suitable for the purpose of use of the place, so that the indoor people living in houses, hotels, halls, offices, computer rooms, and various industrial sites, etc. The purpose is to create a comfortable air condition for people. Since the air condition that is comfortable for people is affected by various conditions such as climatic conditions, clothing, living standards, and health status, there is no fixed value, but in summer, the temperature is 26 to 28. ℃, relative humidity is about 50%, and in winter, the temperature is usually 20-22℃ and relative humidity is about 40%.

However, these values are not absolute, and in order for places such as factory workshops, warehouses, laboratories, and computer rooms to fully achieve their functions, the most appropriate value must be determined for the products produced, processed, stored, or tested there, or for various devices operating in those places. The status must be maintained.

For example, in a tobacco factory, the humidity is relatively high to prevent the leaves from drying out and turning into powder when they are chopped into small pieces; in a chocolate factory, the temperature is kept low to prevent the chocolate from melting and losing its shape; and in a transistor manufacturing factory, the dust is kept to an extreme level. In physiology laboratories, air conditioning is used to prevent the quality of products produced from being uneven or from producing many defective products, such as by slowing down the flow of air in consideration of the effect of wind on living organisms.

Among places that require air conditioners, data centers rent computer facilities or network facilities to companies and individuals, or provide services such as maintenance and repair by attracting customers' facilities. The server rooms of these data centers are usually equipped with telecommunication facilities. A plurality of racks equipped with data servers and databases including devices are installed in a row, and include a workspace where workers can work.

For equipment including server racks, the temperature of the surrounding air rises due to the heat generated by the data servers. In this case, since equipment such as data servers do not operate smoothly in a high temperature environment, an air conditioner is needed to cool the air in the server room. In addition, in the case of parts or circuit equipment of various electronic devices installed in the server room, if there is too much moisture, there is a risk of electric leakage, and if there is too little moisture, problems such as fire or damage to electronic components due to static electricity generation and sparks may occur.

To solve this problem, a conventional air conditioner cools and circulates ventilation using a refrigerant to maintain the temperature and humidity of the server room, and cools and supplies it to a specified temperature.

In winter, the temperature of the outdoor air is lower than the set temperature required for the server room. Additionally, since the server room is a closed room with no windows, there is a risk of reducing the work efficiency of workers working in the server room and worsening their health.

Therefore, it is necessary to develop an air conditioner that uses outdoor air in winter to cool indoor air while discharging indoor air and receiving outdoor air to perform ventilation, and is equipped with an indoor and outdoor unit integrated.

KR 10-2324085 (B1) 2021.11.03. KR 10-2432316 (B1) 2022.08.09.

In order to solve the above problems, the purpose of the present invention is to provide an integrated air conditioner with an evaporator and a condenser inside the main housing, without distinction between indoor and outdoor units, and a ventilation function that discharges air to the outdoors and receives outdoor air into the room. is to provide.

Another object of the present invention is that the main housing is largely divided into an upper space and a lower space by a separating partition provided in the center, but in summer mode, indoor air flows in the upper space and outdoor air flows in the lower space, so there is no interference inside the main housing. The aim is to provide an integrated air conditioner with a ventilation function with improved cooling efficiency.

Another object of the present invention is that the indoor air inflow area that receives indoor air and the outdoor air inflow area that receives outdoor air are located at the same height but are partitioned by a separating partition, and the indoor air inlet and outdoor air inflow area formed in the indoor air inflow area are located at the same height. The size of the outside air inlet is relatively smaller than the space of the inside inflow area and the outside air inlet, so a sufficient amount can be sucked in at a strong flow rate, so the volume can be miniaturized and at the same time, it is an integrated type with a ventilation function that can improve cooling efficiency. Air conditioning is provided.

Another object of the present invention is that in the main housing, the inside air inflow area and the outside air inflow area are disposed between the evaporator receiving area and the condenser receiving area, so that inside and outside air flow in from the center of the main housing, respectively, and then inside air flows to the top and outside air flows to the bottom. Therefore, an integrated air conditioner with a ventilation function that can efficiently set the flow path of indoor and outdoor air is provided.

Another object of the present invention is to open the outdoor air inlet damper to allow outdoor air to be introduced into the first discharge fan after passing through the evaporator at the internal air inlet when cooling the indoor air with outdoor air in winter when the outdoor air temperature is lower than the indoor set temperature. Unlike the inside air, which is sucked in, outside air is sucked directly into the first discharge fan without going through an evaporator, so a much larger amount of outside air is taken in and discharged into the room compared to the inside air, and the power of the first discharge fan is used to cool the room. The aim is to provide an integrated air conditioner with a ventilation function that improves cooling efficiency relative to the power used.

Another object of the present invention is to provide a filter between the first discharge fan and the outdoor air inflow damper to separate contaminants from the outdoor air and supply them indoors. However, since the air resistance coefficient of the filter is lower than the air resistance coefficient of the evaporator, the air resistance coefficient is lower than that of the evaporator. This provides an integrated air conditioner with a ventilation function that can increase cooling power with low power consumption because the amount of outside air taken in is greater than the amount of outside air taken in by the first discharge fan when operating.

In order to achieve the above object, the present invention divides the main body 100, which forms a hollow space, into an upper space (US) and a lower space (LS) by a separation partition 200 disposed slanted upward toward the outdoors. In the air conditioner, a first discharge fan (500) is provided in the upper area of the upper space (US) to discharge air into the room through an indoor discharge port (111), and receives outdoor air by opening and closing control. A first area 110 provided with an outside air inflow damper 112; An evaporator receiving area 120 in which an evaporator 300, which cools the air through heat exchange with a refrigerant, is disposed at the lower part of the first area 110; The indoor air flows into the inside through the air inlet 131 formed on one side between the evaporator receiving area 120 and the separation partition wall 200 and then moves to the evaporator 300 of the evaporator receiving area 120. Bet inflow area (130); It is a lower area of the lower space (LS) and is provided with a second discharge fan 600 that discharges air to the outdoors through the outdoor discharge port 161, and an air inflow damper 162 that receives indoor air through opening and closing control. ) a second area 160 provided; A condenser receiving area 150 in which a condenser 400 that cools the refrigerant through heat exchange with outside air is disposed at the upper part of the second area 160; And outdoor air flows into the interior through the outside air inlet 141 formed on one side between the condenser receiving area 150 and the separation partition wall 200 and then moves to the condenser 400 of the condenser receiving area 150. and an outdoor air inflow area 140, wherein the outdoor air flowing into the first area 110 through the outdoor air inflow damper 112 is discharged into the room without passing through the evaporator 300; The air flowing into the second area 160 through the air inlet damper 162 is discharged outdoors without passing through the condenser 400.

In addition, the outside air flowing in through the outside air inlet damper 112 of the present invention is supplied indoors, and the outside air flowing in through the outside air inlet 141 is discharged outdoors; The air inflow area 130 and the outside air inflow area 140 are disposed between the evaporator receiving area 120 and the condenser receiving area 150; The internal air inlet 131 and the external air inlet 141 are arranged at the same height at the front and rear, respectively, around the separation partition wall 200.

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In addition, entrances and exits for indoor and outdoor air are disposed on the indoor side (100a) and the outdoor side (100b) of the main housing 100 of the present invention, and the main housing 100 is located on the indoor side (100a) and the outdoor side (100b), respectively. The number of inlets for incoming air is greater than the number of outlets for air discharged from the main housing 100.

In addition, when the air conditioner of the present invention is operated in a summer mode in which the outside air inflow damper 112 and the inside air inflow damper 162 are closed; The bet flows into the bet inlet area 130 through the bet inlet 131 by the suction force of the first discharge fan 500, and then passes through the evaporator 300 and the first area 110 to the indoor discharge port 111. It is discharged into the room through; Outdoor air flows into the outdoor air inlet area 140 through the outdoor air inlet 141 by the suction force of the second discharge fan 600, then passes through the condenser 400 and the second area 160 to the outdoor outlet 161. It is discharged outdoors through.

In addition, when the air conditioner of the present invention is operated in winter mode in which the outside air inflow damper 112 and the inside air inflow damper 162 are opened; Due to the intake force of the first discharge fan 500, outside air flows into the first area 110 through the outside air inflow damper 112 and is discharged into the room without passing through the evaporator 300, and the amount of outside air is the first area 110. The amount of bet flows into the bet inlet area 130 through the bet inlet 131 due to the suction force of the discharge fan 500 and passes through the evaporator 300; Due to the suction power of the second discharge fan 600, indoor air flows into the second area 160 through the air inlet damper 162 and is discharged outdoors through the outdoor discharge port 161 without passing through the condenser 400. However, the amount of air is greater than the amount of outdoor air that flows into the outdoor air inlet area 140 through the outdoor air inlet 141 due to the suction force of the second discharge fan 600 and passes through the condenser 400.

In addition, the amount of outside air flowing in through the outside air inlet damper 112 of the present invention is greater than the amount of inside air flowing in through the outside air inlet 131; The amount of inside air flowing in through the outside air inlet damper 162 is greater than the amount of outside air flowing in through the outside air inlet 141; The paths of the outside air flowing in through the outside air inflow damper 112 and the inside air flowing in through the inside air inflow damper 162 are parallel but in opposite directions.

The integrated air conditioner with a ventilation function according to the present invention is equipped with an evaporator and a condenser inside the main housing, so that it is integrated into an indoor unit and an outdoor unit without distinction, but has the effect of having a ventilation function to discharge air to the outdoors and receive outdoor air into the room. .

In addition, the present invention is largely divided into an upper space and a lower space by a separating partition provided in the center of the main housing, but in summer mode, indoor air flows in the upper space and outdoor air flows in the lower space, so there is no interference inside the main housing, resulting in cooling efficiency. This has an improving effect.

In addition, in the present invention, the indoor air inflow area that receives indoor air and the outdoor air inflow area that receives outdoor air are located at the same height but are partitioned by a separating partition, and the indoor air inlet formed in the indoor air inflow area and the outdoor air inlet formed in the outdoor air inlet area are located at the same height. The size of the inlet is relatively smaller than the space of the internal air inlet area and the external air inlet, so that a sufficient amount can be sucked in at a strong flow rate, which has the effect of miniaturizing the volume and improving cooling efficiency.

In addition, in the present invention, in the main housing, the internal air inflow area and the external air inflow area are disposed between the evaporator receiving area and the condenser receiving area, so internal and external air flow in from the center of the main housing, respectively, and internal air flows to the top and outdoor air flows to the bottom. There is an effect of efficiently setting the flow path of outdoor air.

Additionally, in the present invention, when cooling the indoor air with outdoor air in winter when the outdoor air temperature is lower than the indoor set temperature, the outdoor air inlet damper is opened to let in outdoor air, and after passing through the evaporator at the internal air inlet, the air is sucked into the first discharge fan. Unlike the indoor air, outdoor air is sucked directly into the first discharge fan without going through an evaporator, and a much larger amount of outdoor air is sucked in and discharged indoors compared to the indoor air, so that the power of the first discharge fan is used to cool the room. This has the effect of improving cooling efficiency compared to the power used.

In addition, the present invention provides a filter between the first discharge fan and the outdoor air inflow damper to separate contaminants from the outdoor air and supply them indoors. However, since the air resistance coefficient of the filter is lower than that of the evaporator, it can be operated in winter mode. Since the amount of outside air taken in by the first discharge fan is greater than the amount of intake of internal air, there is an effect of increasing cooling power with less power consumption.

Figure 1 shows an integrated air conditioner with a ventilation function of the present invention, (a) is a front perspective view, and (b) is a rear perspective view.
Figure 2 is a perspective view showing an integrated air conditioner with a ventilation function of the present invention.
Figure 3 is a side cross-sectional view showing the inner area of the main housing in the integrated air conditioner with ventilation function of the present invention.
Figure 4 is a side cross-sectional view of an integrated air conditioner with a ventilation function of the present invention.
Figure 5 is a side cross-sectional view of an integrated air conditioner with a ventilation function of the present invention provided with a filter.
Figure 6 is a side cross-sectional view showing the air flow when the operation mode of the integrated air conditioner with ventilation function of the present invention is summer mode.
Figure 7 is a side cross-sectional view showing the air flow when the operation mode of the integrated air conditioner with ventilation function of the present invention is winter mode.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily implement them.

Referring to Figures 1 to 7, an integrated air conditioner with a ventilation function (hereinafter referred to as an 'air conditioner') according to the present invention has an evaporator 300 and a condenser 400 in one main housing, regardless of indoor unit or outdoor unit. It relates to an air conditioner provided in (100) and formed as an integrated unit, which receives outside air into the room or exhausts inside air to the outside,

In the integrated air conditioner divided into an upper space (US) and a lower space (LS) by a separation partition 200 inclined at the center of the main housing 100 forming a hollow space,

The upper area of the upper space (US) is provided with a first discharge fan 500 that discharges air into the room through the indoor discharge port 111, and an outside air inflow damper 112 that receives outdoor air through opening and closing control. A first area 110 provided with;

an evaporator receiving area 120 which is formed below the first area 110 and where an evaporator 300 that cools the air through heat exchange with a refrigerant is disposed;

It is an area formed between the evaporator receiving area 120 and the separation partition 200, and after indoor air flows into the inside through the air inlet 131 formed on one side, the evaporator 300 of the evaporator receiving area 120 ) Bet inflow area (130) moving to;

It is a lower area of the lower space (LS) and is provided with a second discharge fan 600 that discharges air to the outdoors through the outdoor discharge port 161, and an air inflow damper 162 that receives indoor air through opening and closing control. ) a second area 160 provided;

A condenser receiving area 150, which is formed in the upper part of the second area 160 and where a condenser 400 that cools the refrigerant through heat exchange with the outside air is disposed; and

It is an area formed between the condenser receiving area 150 and the separation partition wall 200, and after outdoor air flows into the interior through the outside air inlet 141 formed on one side, the condenser 400 of the condenser receiving area 150 ) includes an external air inflow area 140 moving to ).

The server room is equipped with multiple racks equipped with heat-generating data servers and databases. The equipment in the server room must be operated at an appropriate temperature and humidity. If the temperature and humidity are inappropriate, the equipment may not operate smoothly or a fire may occur, so an air conditioner is installed to keep the air in the server room harmonious.

Typically, air conditioners are divided into an indoor unit equipped with an evaporator 300 to exchange heat with the inside air, and an outdoor unit equipped with a condenser 400 to exchange heat with the outside air, and are installed indoors and outdoors, respectively. However, the present invention is installed inside the main housing 100. An integrated air conditioner equipped with both an evaporator (300) and a condenser (400) is provided, so that the air heated in the server room is cooled by heat exchange with the refrigerant in the evaporator (300) and then discharged back to the server room to maintain a constant temperature in the server room. keep it in condition Hereinafter, an integrated air conditioner is defined as an air conditioner in which the condenser 400 and the evaporator 300 are installed in one place rather than in separate places.

However, when the outside temperature is lower than the temperature at which you want to set the temperature inside the server room to a certain temperature, such as in winter, rather than cooling the inside of the server room by exchanging heat with the refrigerant, it is better to cool the room by introducing cold outside air to circulate the refrigerant. It has the advantage of reducing power consumption and saving energy.

Therefore, the present invention is configured to receive outdoor air into the room and discharge indoor air to the outdoors in an air conditioner equipped with both an evaporator 300 and a condenser 400 inside the main housing 100, and the evaporator 300 and the condenser 400 Even if ) is not in operation, ventilation can be performed by discharging the indoor air from the server room to the outdoors and bringing the outdoor air into the indoor room.

The integrated air conditioner with a ventilation function according to the present invention does not perform ventilation by drawing outside air into the room when the temperature of the outside air is higher than the temperature inside the server room, but each of the inside and outside air exchanges heat with the refrigerant circulating along the refrigeration cycle. The server room is cooled by discharging cooled air into the room. However, when the temperature of the outside air is lower than the temperature inside the server room, the cold outside air flows into the room and the heated inside air is discharged outside, stopping the refrigeration cycle and cooling the inside of the server room while saving power.

To achieve this, the air conditioner of the present invention is provided with a separating partition wall 200 at the inner center of the main body housing 100 to divide it into an upper space (US) and a lower space (LS), and the upper space (US) is divided into an upper space (US) and a lower space (LS). It is divided into area 1 (110), an evaporator receiving area (120), and an air inflow area (130), and the lower space (LS) is divided into an outside air inflow area (140), a condenser receiving area (150), and a second area (160). divided into In summer mode, only indoor air flows in the upper space (US) and only outdoor air flows in the lower space (LS). However, in winter mode, outdoor air flows into the upper space (US) and is discharged indoors, and the lower space (LS) allows only outdoor air to flow. LS), indoor air flows in and is discharged outdoors.

Therefore, rather than having the indoor and outdoor units installed in separate locations, the evaporator 300 and the condenser 400 are accommodated inside one main housing 100, thereby improving the convenience of maintenance. In winter, the evaporator 300 and the condenser 400 ), the server room can be ventilated with cold outside air without running the system, dramatically reducing power consumption.

In the present invention, the air inside the server room is referred to as 'indoor air' and the air outside the server room is referred to as 'outdoor air'. However, when neither indoor air nor outdoor air is specified, it is referred to as 'air'.

Additionally, in the present invention, 'front' refers to a direction toward the indoor side, and 'rear' refers to a direction toward the outdoor side.

In the present invention, the set temperature refers to the optimal temperature for smoothly operating the electronic equipment inside the server room.

In addition, when explaining the operation mode of the air conditioner of the present invention, the mode in which the temperature of the outside air is higher than the set temperature and the refrigeration cycle including the evaporator 300 and the condenser 400 is operated to cool the inside through the refrigerant is referred to as summer mode, The mode in which the temperature of the outside air is lower than the setting and the refrigeration cycle including the evaporator 300 and the condenser 400 is not operated and ventilation is performed by discharging heated air to the outdoors and receiving cold outdoor air into the room is referred to as winter mode. do.

However, the summer mode and winter mode are named based on the characteristics of the season for convenience of explanation, and do not necessarily refer to a mode that operates only in summer and winter. Summer mode also refers to a mode that operates depending on the outside temperature in spring and fall. Alternatively, it can be changed to winter mode, a mixed mode that combines both. Changing the operation mode to summer mode or winter mode is determined by the set temperature of the server room and the temperature of the outside air.

The air conditioner according to the present invention is a device that cools the inside by operating a refrigeration cycle consisting of four cycles: evaporation>compression>condensation>expansion. An evaporator (300) that exchanges heat with the inside to cool the inside in a single main housing (100). , a condenser 400 is provided to lower the temperature of the refrigerant by exchanging heat with the outside air. Here, other components such as the compressor and expansion valve that make up the refrigeration cycle are general, so their illustration and description are omitted. However, the refrigerant circulating in the refrigeration cycle moves along the interconnected evaporator 300 and condenser 400.

Referring to Figures 1 and 2, the integrated air conditioner with ventilation function of the present invention is equipped to allow indoor air and outdoor air to enter and exit the main housing. In order to provide the air conditioner of the present invention in a compact size, the components provided inside the main housing 100 were stacked vertically (height direction, vertical direction in FIG. 3). Therefore, an air conditioner is provided that has a structure in which the width (horizontal direction in FIG. 3) of the main housing 100 can be reduced and the volume can be miniaturized, while the cooling capacity can be maintained or improved.

The main housing 100 includes an indoor side (100a), which is a side facing indoors, and an outdoor side (100b), which is a side facing outdoors. The main body housing 100 is placed indoors up to the outdoor side (100b), or the indoor side (100a) can be placed at the boundary between indoors and outdoors so that the outdoor side (100b) is placed indoors, or even the indoor side (100a) can be placed outdoors, and is not limited to this arrangement method, but can be installed according to the environment and conditions for installation. It can be installed in a variety of ways depending on your needs.

Looking at the internal space of the main housing 100 with reference to FIG. 3, first, the separation partition wall 200 is disposed inclined at the center of the main housing 100, and the incline direction is from the indoor air inlet 131 to the outdoor side. It is arranged to slope upward toward the outdoor air inlet 141. That is, the separation partition 200 extends in length from the bottom of the internal air inlet 131 to the top of the external air inlet 141. The internal space of the main housing 100 is largely divided into an upper space (US) and a lower space (LS) by the separating partition 200. In summer mode, the upper space (US) is a space through which indoor air enters and exits, and the lower space (LS) is a space through which outside air enters and exits. However, in winter mode, outside air can flow into the upper space (US) and the lower space Bets may flow into (LS).

The upper space (US) is divided into a first area 110, an evaporator receiving area 120, and a vapor inflow area 130. However, the first area 110, the evaporator receiving area 120, and the vapor inflow area 130 are not separated by an actual partition wall, but are spaces that communicate with each other, and the evaporator 300 is in the upper space (US). The space occupied is divided into the evaporator receiving area 120, the upper area of the evaporator 300 is divided into the first area 110, and the area below the evaporator 300 in the upper space (US) is divided into the vapor inflow area 130. will be. Referring to FIG. 3, the upper space (US) communicated with each other is shown divided into a first area 110, an evaporator receiving area 120, and a vapor inflow area 130.

In the upper space (US), the first area 110 is at the top, the evaporator receiving area 120 is located at the bottom of the first area 110, and the vapor inflow area 130 is located at the bottom of the evaporator receiving area 120. It is placed.

The lower space LS is divided into a second area 160, a condenser receiving area 150, and an outside air inflow area 140. However, the second area 160, the condenser receiving area 150, and the outside air inflow area 140 are not separated by an actual partition wall and are spaces that communicate with each other, but the condenser 400 is connected to the lower space LS. The space occupied by the condenser is referred to as the condenser receiving area 150, the lower area of the condenser 400 is referred to as the second area 160, and the area above the condenser 400 in the lower space (LS) is referred to as the outside air inflow area 140. It is partitioned. Referring to FIG. 3, the lower space LS connected to each other is shown divided into a second area 160, a condenser receiving area 150, and an outside air inflow area 140.

The second area 160 is located at the bottom of the lower space LS, and the condenser receiving area 150 is located at the upper part of the second area 160, and the outside air inflow area 140 is located at the upper part of the condenser receiving area 150. This is placed.

Referring to Figures 3 and 4, the first area 110 is an area that receives air and discharges it into the room, and is disposed at the upper part of the upper space (US). The air flowing into the first area 110 varies depending on the operating mode of the air conditioner. More specifically, in the summer mode, only the outside air flows into the first area 110, and in the winter mode, outdoor air flows into the first area 110, but indoor air does not flow in, or a small amount of inside air may flow in. .

An indoor outlet 111, which is an outlet for discharging air into the room, is formed on the indoor side 100a of the first area 110, and intakes air (indoor or outdoor air) into the inside of the first area 110 to A first discharge fan 500 that discharges air toward the indoor discharge port 111 is provided, and an outdoor air inflow damper 112 is provided on the outdoor side 100b of the first area 110 through which outdoor air is introduced by opening and closing control. It is provided.

The indoor outlet 111 is provided with a louver that can control the amount and direction of blowing air.

The first discharge fan 500 is a fan that discharges air into the room through the indoor discharge port 111. The impeller 510 provided in the first discharge fan 500 is of the sirocco fan type and has the advantage of making less noise, occupying a small area (volume), and discharging air at strong pressure. Therefore, it is possible to achieve a compact size by reducing the volume without reducing the cooling capacity, which is the purpose of the present invention.

The air sucked by the first discharge fan 500 varies depending on the operation mode of the air conditioner. More specifically, when the air conditioner operates in summer mode, the outdoor air inflow damper 112 is closed, so that it does not intake outdoor air from the outside, but intakes indoor air. Therefore, the intake force of the first discharge fan 500 is transmitted in the order of the first area 110, the evaporator receiving area 120, the bet inlet area 130, and the indoor space to suck in the bet, and the indoor bet is sucked in through the bet inlet 131. ), the vapor inflow area 130, the evaporator receiving area 120, and the first area 110 are sucked in and discharged from the first discharge fan 500 and move indoors through the indoor discharge port 111.

On the other hand, when the air conditioner operates in winter mode, the outdoor air inflow damper 112 is opened, and the outdoor space and the first area 110 communicate with each other. At this time, the intake force of the first discharge fan 500 is transmitted to the first area 110, the outside air inflow damper 112, and the outdoor space, so that the outdoor air is transferred to the outside air inlet damper 112 and the first area 110. After being sucked into the first discharge fan 500, it is discharged and moves indoors through the indoor discharge port 111. In the winter mode, the suction power of the first discharge fan 500 is transmitted to the evaporator receiving area 120, the air inlet area 130, and the indoor space as in the summer mode, but the evaporator 300 disposed in the evaporator receiving area 120 ) is quite high, so most of the air sucked into the first discharge fan 500 is outdoor air introduced into the first area 110 through the outdoor air inflow damper 112, and the evaporator receiving area 120 in the indoor space ) The amount of inhaled air is almost zero or is only a trace amount.

The outside air inflow damper 112 is a damper that is closed or opened by electronic control. The outside air inflow damper 112 communicates with or blocks the first area 110 and the outdoor space. If the operation mode of the air conditioner is summer mode, the outside air inflow damper 112 is closed to block outdoor air from flowing into the first area 110, and if the operation mode of the air conditioner is winter mode, the outside air inflow damper 112 is opened. This allows outdoor air to flow into the first area 110.

Since the location of the outdoor air inflow damper 112 is disposed on the outdoor side 100b of the first area 110, when outdoor air is introduced in winter mode, the outdoor air is directly discharged to the first stage without passing through the evaporator 300. The indoor air that is sucked in by the fan 500 but receives the suction force of the first discharge fan 500 must pass through the evaporator 300, so unlike the indoor air that is sucked in in little or a small amount, the outdoor air is drawn in a large amount without loss of fluidity. A large amount of cool air can be supplied to the room by being sucked in. This has the effect of improving cooling efficiency compared to the power consumption due to operation of the first discharge fan 500.

Meanwhile, as shown in FIG. 5, a filter 700 that filters out contaminants contained in the outside air may be further provided in front or behind the outside air inflow damper 112. The server room, which is an indoor space, must maintain clean air quality to prevent equipment damage, so when outdoor air is supplied indoors in winter mode, the outdoor air is purified through a filter 700 and then supplied indoors.

The air resistance coefficient of the filter 700 is lower than that of the evaporator 300. The reason is that when the air conditioner operates in winter mode, the amount of outside air flowing in through the outside air inlet damper 112 is greater than the amount of inside air sucked into the first discharge fan 500 through the outside air inlet 131. Because there needs to be more of this. A filter 700 is further provided to purify outdoor air, so that even if the flow force of outdoor air sucked into the first discharge fan 500 is resisted by the filter 700, the air resistance coefficient of the evaporator 300 is adjusted to that of the filter 700. Since the flow resistance by the filter 700 is higher than the air resistance coefficient of the evaporator 300, the flow resistance by the evaporator 300 is significantly lower, so a large amount of outside air is sucked in through the first discharge fan 500 and supplied to the room to cool the room. It is possible. For stable control, a separate damper can be installed at the internal air inlet 131 or the external air inlet 141 to fundamentally block air according to the operation mode.

Referring to FIGS. 3 and 4 , the evaporator receiving area 120 is an area located below the first area 110 and is a space where the evaporator 300 is provided. The evaporator 300 cools the air by exchanging heat with the refrigerant. The first area 110 is located at the top of the evaporator receiving area 120, and the evaporator inlet area 130 is located at the bottom, and the evaporator 300 of the evaporator receiving area 120 is located in the evaporator inlet area 130. After passing, it moves to the first area (110).

The evaporator 300 according to the present invention is formed so that heat exchange occurs between the refrigerant and the refrigerant, and the refrigerant flows along the inside of the copper pipe, and the heat exchange between the refrigerant and the refrigerant occurs as air passes between heat dissipation fins connected to the copper pipe. Hereinafter, the copper pipe and heat dissipation fin formed in the evaporator 300 and the condenser 400 are simply referred to as 'heat dissipation fins'.

In the evaporator 300 of the present invention, heat dissipation fins are formed in multiple layers. In the conventional evaporator 300, the heat radiation fin is provided as a single layer so that air exchanges heat with the refrigerant while passing through a thin heat radiation fin, but the area of the heat radiation fin is increased to ensure sufficient heat exchange. However, the area of the evaporator 300 of the present invention is reduced to achieve a compact size, which is the purpose of the present invention. However, for sufficient heat exchange, heat dissipation fins are arranged in multiple layers so that air exchanges heat while passing through the multiple layers of heat dissipation fins. Therefore, the area of the single layer through which the heat dissipation fin of the present invention exchanges heat with air is reduced, but sufficient heat exchange occurs while passing through multiple layers. This is not limited to the evaporator 300, but also applies when the condenser 400 exchanges heat with air, and the heat dissipation fins of the condenser 400 are also formed in multiple layers.

Therefore, the evaporator 300 has a dense structure because it is made up of multiple layers of heat dissipation fins. As a result, the air resistance coefficient of the evaporator 300 is high, so when air passes through the evaporator 300, a large resistance is generated. However, the impeller 510 of the first discharge fan 500 is formed in a sirocco type and can intake air at high pressure, so it can sufficiently intake air in summer mode, and has a high air resistance coefficient in winter mode, which supplies outdoor air to the room. The evaporator 300 suppresses the intake of indoor air, and outdoor air is sucked in through the open outdoor air inflow damper 112. Therefore, as the heat dissipation fins of the evaporator 300 of the present invention are formed in multiple layers, the main housing 100 can be compactly implemented and the cooling efficiency of cooling the room is improved by simultaneously achieving the effect of suppressing the inflow of air in winter mode. It will happen.

Referring to Figures 3 and 4, the inflow area 130 is an area provided below the upper space (US) and refers to the space between the evaporator 300 and the separation partition wall 200. A bet inlet 131 is formed on the indoor side 100a of the bet inflow area 130 to receive indoor bets into the bet inflow area 130. At this time, the suction force that introduces indoor air into the air inlet area 130 is generated by the first discharge fan 500.

The bet inlet 131 is provided in plural numbers in the form of a hole, louver, or grill, so that the size of the bet inlet 131 is relatively small compared to the space size of the bet inlet area 130. Therefore, when indoor air passes through the air inlet 131, it flows in at high pressure and high speed, but the pressure and speed are relaxed (lowered) inside the air inlet area 130 and flows.

In summer mode, the suction force of the first discharge fan 500 acts on the inside air inlet 131, but in the winter mode, the suction force of the first discharge fan 500 acts on both the inside air inlet 131 and the outside air inlet damper 112. It works in some places. However, the air resistance coefficient of the evaporator 300 is significantly higher than that of the outside air inlet damper 112, so the amount of air taken in is significantly greater at the outside air inlet damper 112 than at the inner air inlet 131. Therefore, in the winter mode, the amount of air intake through the air inlet 131 is almost or weak, and most of the intake force of the first discharge fan 500 acts on the outdoor air inlet damper 112, allowing outdoor air to flow in.

Referring to FIGS. 3 and 4 , the second area 160 is an area that receives air and discharges it to the outdoors, and is disposed at the lower part of the lower space LS. The air flowing into the second area 160 varies depending on the operating mode of the air conditioner. More specifically, in the summer mode, only outdoor air flows into the second area 160, and in the winter mode, indoor air flows into the second area 160, but outdoor air does not flow in, or a small amount of outdoor air may flow in. .

An outdoor outlet 161, which is an outlet for discharging air to the outdoors, is formed on the outdoor side 100b of the second area 160, and intakes air (indoor or outdoor air) into the interior of the second area 160 to A second discharge fan 600 that discharges air toward the outdoor discharge port 161 is provided, and an air inflow damper 162 through which indoor air flows in by opening and closing control is provided on the indoor side 100a of the second area 160. It is provided.

The outdoor outlet 161 is provided with a louver that can control the amount and direction of blowing air.

The second discharge fan 600 is a fan that discharges air to the outdoors through the outdoor discharge port 161. The impeller 510 provided in the second discharge fan 600 is of the sirocco fan type and has the advantage of making less noise, occupying a small area (volume), and discharging air at strong pressure. Therefore, it is possible to achieve a compact size by reducing the volume without reducing the cooling capacity, which is the purpose of the present invention.

The air sucked by the second discharge fan 600 varies depending on the operation mode of the air conditioner. More specifically, when the air conditioner operates in the summer mode, the air inflow damper 162 is closed, so it does not intake air from indoors and intakes outdoor air from outside. Therefore, the intake force of the second discharge fan 600 is transmitted in the order of the second area 160, the condenser receiving area 150, the outdoor air inlet area 140, and the outdoor space to intake outdoor air, and the outdoor air is transmitted through the outdoor air inlet ( 141), the outside air inflow area 140, the condenser receiving area 150, and the second area 160 are sucked in and discharged from the second discharge fan 600 and move to the outdoors through the outdoor discharge port 161.

On the other hand, when the air conditioner operates in winter mode, the air inflow damper 162 is opened, and the indoor space and the second area 160 communicate with each other. At this time, the intake force of the second discharge fan 600 is transmitted to the second area 160, the inside air inflow damper 162, and the indoor space, so that the inside air is transferred to the inside air intake damper 162 and the second area 160. After being sucked into the second discharge fan 600, it is discharged and moves outdoors through the outdoor discharge port 161. In the winter mode, the suction power of the second discharge fan (600) is transmitted to the condenser receiving area (150), the outside air inflow area (140), and the outdoor space as in the summer mode, but the condenser (400) disposed in the condenser receiving area (150) Since the air resistance coefficient of ) is quite high, most of the air sucked into the second discharge fan (600) is the air that flows into the second area (160) through the air inlet damper (162), and is discharged from the outdoor space into the condenser receiving area (150). ) The amount of outside air that is taken in through the air is almost zero or is only a trace amount.

The air inflow damper 162 is a damper that is closed or opened by electronic control. The bet inflow damper 162 communicates with or blocks the second area 160 and the indoor space. If the operation mode of the air conditioner is summer mode, the air inlet damper 162 is closed to block indoor air from flowing into the second area 160, and if the operation mode of the air conditioner is winter mode, the air inlet damper 162 is opened. This allows indoor air to flow into the second area 160.

Since the position of the air inflow damper 162 is disposed on the indoor side 100a of the second area 160, when indoor air is introduced in winter mode, the air is directly discharged to the second stage without passing through the condenser 400. The outdoor air that is sucked in by the fan (600) but receives the suction force of the second discharge fan (600) must pass through the condenser (400), so unlike the outdoor air that is sucked in in little or a small amount, the outside air is sucked in in a large amount without loss of fluidity. The amount can be sucked in and discharged outdoors. This has the effect of improving ventilation efficiency compared to the power consumption due to operation of the second discharge fan 600.

Referring to FIGS. 3 and 4 , the condenser receiving area 150 is an area located above the second area 160 and is a space where the condenser 400 is provided. The condenser 400 cools the refrigerant by exchanging heat with the outside air and the refrigerant. A second area 160 is located at the bottom of the condenser receiving area 150, and an outside air inflow area 140 is located at the top, and outside air flows into the condenser 400 of the condenser receiving area 150 from the outside air inflow area 140. After passing, move to the second area (160).

The condenser 400 according to the present invention is formed so that heat exchange occurs between the outside air and the refrigerant, and the heat dissipation fins are formed in multiple layers. Therefore, the area of the single layer through which the condenser 400 of the present invention exchanges heat with air is reduced, but sufficient heat exchange occurs while passing through multiple layers.

Therefore, the condenser 400 has a dense structure because it is made up of multiple layers of heat dissipation fins. As a result, the air resistance coefficient of the condenser 400 is high, so when outside air passes through the condenser 400, a large resistance is generated. However, since the impeller 510 of the second discharge fan 600 is formed in a sirocco type and can intake air at high pressure, it is possible to sufficiently intake outdoor air in summer mode, and has a high air resistance coefficient in winter mode, which exhausts air to the outdoors. The excitation condenser 400 suppresses the intake of external air, and internal air is drawn in through the open internal air inlet damper 162. Therefore, as the heat dissipation fins of the condenser 400 of the present invention are formed in multiple layers, the main housing 100 can be implemented compactly and at the same time achieve the effect of suppressing the inflow of outdoor air in winter mode, thereby discharging indoor air to the outdoors. Ventilation efficiency can be improved.

Referring to FIGS. 3 and 4 , the outside air inflow area 140 is an area provided at the upper part of the lower space LS and refers to the space between the condenser 400 and the separation partition 200. An outdoor air inlet 141 is formed on the outdoor side 100b of the outdoor air inflow area 140 to receive outdoor air into the outdoor air inflow area 140. At this time, the intake force that introduces outdoor air into the outdoor air inflow area 140 is generated by the second discharge fan 600.

The outdoor air inlet 141 is provided in plural numbers in the form of holes, louvers, or grills, and the size of the outdoor air inlet 141 is relatively small compared to the space size of the outdoor air inlet area 140. Therefore, when outdoor air passes through the outdoor air inlet 141, it flows in at high pressure and high speed, but the pressure and speed are relaxed (decreased) inside the outdoor air inlet area 140 and flows.

In summer mode, the intake force of the second discharge fan (600) acts on the outside air inlet (141), but in winter mode, the intake force of the second discharge fan (600) acts on both the outside air inlet (141) and the inside air inlet damper (162). It works in some places. However, the air resistance coefficient of the condenser 400 is significantly higher than that of the internal air inlet damper 162, so the amount of air sucked is significantly greater at the internal air inlet damper 162 than at the external air inlet 141. Therefore, in the winter mode, the amount of outdoor air sucked in through the outdoor air inlet 141 is almost or weak, and most of the intake force of the second discharge fan 600 acts on the indoor air inlet damper 162, allowing indoor air to flow in.

Referring to Figures 1 and 4, in the main housing 100 of the present invention, three entrances and exits through which air enters and exits the main housing 100 are formed on the indoor side (100a) and the outdoor side (100b), respectively, but there are two inlets. , there is one exit. The inlet through which air flows into the main housing 100 on the indoor side (100a) is the internal inlet 131 and the internal inlet damper 162, and the outlet is the indoor outlet 111, and the air flows into the main housing 100 on the outdoor side 100b. The inlet flowing into (100) is the outdoor air inlet 141 and the outdoor air inlet damper 112, and the outlet is the outdoor outlet 161. Therefore, entrances and exits for indoor and outdoor air are arranged on the indoor side (100a) and the outdoor side (100b) of the main housing 100, so that the air flowing into the main housing 100 is disposed on the indoor side (100a) and the outdoor side (100b), respectively. The number of inlets is greater than the number of outlets for air discharged from the main housing 100.

When performing ventilation in winter mode, the air flowing into the main housing 100 through the outside air inflow damper 112 and the inside air inflow damper 162 is transferred to other components of the main housing 100 (evaporator 300 and condenser 400). Since it is sucked in and discharged by the discharge fan without going through )), there is no loss of fluidity.

In addition, the internal air inlet 131 and the external air inlet 141, which are the inlets for receiving air in summer mode, are formed at the same height at the front and rear, respectively, around the separation partition 200, so when installing the air conditioner of the present invention, the main body The housing 100 can be placed at an optimal location.

When air flows in through the internal air inlet 131 and the external air inlet 141, an insulating member is further provided in the separation partition wall 200 to prevent heat exchange between internal and external air and improve the efficiency of the refrigeration cycle.

The intake force of the internal air flowing into the internal air inlet 131 and the external air flowing into the external air inlet damper 112 is generated from the first discharge fan 500, and the external air flowing into the external air inlet 141 and the external air inflow damper 162 ) The intake force of the air flowing into the air is generated in the second discharge fan (600).

Hereinafter, the flow of air according to the operation mode of the integrated air conditioner with ventilation function of the present invention will be described in detail with reference to FIGS. 6 and 7.

As shown in Figure 6, the summer mode is a mode in which the refrigeration cycle is operated when the temperature of the outside air is higher than the set temperature of the server room to cool the inside through heat exchange with the refrigerant.

When the air conditioner operates in summer mode, the first discharge fan 500 and the second discharge fan 600 are operated, and the refrigeration cycle including the evaporator 300 and the condenser 400 is operated so that the refrigerant flows through the refrigeration cycle. It circulates along, and the outside air inflow damper 112 and the inside air inflow damper 162 are closed.

Indoor air flows into the air inlet area 130 through the air inlet 131 by the suction force of the first discharge fan 500, and flows into the evaporator receiving area 120 according to the suction force of the first discharge fan 500. ) passes through the evaporator 300 from the bottom to the top. As the air passes through the evaporator 300, which has multiple layers of heat dissipation fins, the air cools while exchanging heat with the refrigerant through the heat dissipation fins.

As the vapor exits the evaporator 300, it enters the first area 110, is sucked in and discharged from the first area 110 to the first discharge fan 500, and is discharged indoors through the indoor discharge port 111. Cool down.

Outdoor air flows into the outside air inlet area 140 through the outside air inlet 141 by the suction force of the second discharge fan 600, and flows into the condenser receiving area 150 according to the suction force of the second discharge fan 600. ) passes through the condenser 400 from top to bottom. As outside air passes through the condenser 400, which has multiple layers of radiating fins, heat is exchanged with the refrigerant through the radiating fins, thereby cooling the refrigerant.

As outside air exits the condenser 400, it enters the second area 160, is sucked in and discharged from the second area 160 by the second discharge fan 600, and is discharged outdoors through the outdoor discharge port 161.

As shown in FIG. 7, the winter mode cools the room without operating the refrigeration cycle including the evaporator 300 and the condenser 400 when the temperature of the outdoor air is lower than the set temperature of the server room and the room can be cooled. This mode saves energy and ventilates the room.

In winter mode, the first discharge fan 500 and the second discharge fan 600 are operated, but the refrigeration cycle including the evaporator 300 and the condenser 400 is not operated, so the refrigerant does not circulate, and the outdoor air inflow damper 112 ) and the bet inflow damper 162 are opened.

Due to the suction force of the first discharge fan 500, outdoor air flows into the first area 110 through the outside air inflow damper 112 without passing through the evaporator 300. The air introduced into the first area 110 is sucked in and discharged by the first discharge fan 500 and is discharged into the room through the indoor discharge port 111, cooling the room. At this time, when outside air flows into the first area 110, it may be purified by the filter 700.

The intake force of the first discharge fan 500 also acts on the inside air inlet 131, but due to the high air resistance coefficient of the evaporator 300, most of the intake force acts on the outside air inlet damper 112, so the inside air inlet 131 The amount of air that flows in through the air inflow area 130 and the evaporator receiving area 120 and then is sucked into the first discharge fan 500 of the first area 110 is almost or insignificant.

Due to the suction force of the second discharge fan 600, indoor air flows into the second area 160 through the air inlet damper 162, without passing through the condenser 400. The air flowing into the second area 160 is sucked in and discharged by the second discharge fan 600 and is discharged outdoors through the outdoor discharge port 161 to ventilate the server room.

The paths of the outside air flowing in through the outside air inflow damper 112 and the inside air flowing in through the inside air inflow damper 162 are parallel but in opposite directions.

The intake force of the second discharge fan 600 also acts on the outside air inlet 141, but due to the high air resistance coefficient of the condenser 400, most of the intake force acts on the internal air inlet damper 162, so the outside air inlet 141 The amount of outside air that flows in through the outside air inflow area 140 and the condenser receiving area 150 and then is sucked into the second discharge fan 600 of the second area 160 is almost or insignificant.

Therefore, most of the suction power of the first discharge fan 500 and the second discharge fan 600 acts for ventilation, thereby improving ventilation efficiency.

100: Main housing 100a: Indoor side 100b: Outdoor side
110: First area 111: Indoor discharge port 112: Outdoor air inflow damper
120: Evaporator receiving area
130: bet inflow area 131: bet inlet
140: Outside air inflow area 141: Outside air inlet
150: Condenser receiving area
160: Second area 161: Outdoor discharge port 162: Inlet inlet damper
200: Separation barrier 300: Evaporator 400: Condenser
500: First discharge fan 510: Impeller 600: Second discharge fan 700: Filter
US: Upper space LS: Lower space

Claims (7)

In the air conditioner divided into an upper space (US) and a lower space (LS) by a separation partition 200 disposed slanted upward toward the outdoors in the main housing 100 forming a hollow space,
In the upper area of the upper space (US), a first discharge fan 500 is provided to discharge air into the room through the indoor discharge port 111, and an outside air inflow damper 112 receives outdoor air through opening and closing control. ) a first area 110 provided;
An evaporator receiving area 120 in which an evaporator 300, which cools the air through heat exchange with a refrigerant, is disposed at the lower part of the first area 110;
The indoor air flows into the inside through the air inlet 131 formed on one side between the evaporator receiving area 120 and the separation partition wall 200 and then moves to the evaporator 300 of the evaporator receiving area 120. Bet inflow area (130);
It is a lower area of the lower space (LS) and is provided with a second discharge fan 600 that discharges air to the outdoors through the outdoor discharge port 161, and an air inflow damper 162 that receives indoor air through opening and closing control. ) a second area 160 provided;
A condenser receiving area 150 in which a condenser 400 that cools the refrigerant through heat exchange with outside air is disposed at the upper part of the second area 160; and
Outdoor air flows into the interior through the outside air inlet 141 formed on one side between the condenser receiving area 150 and the separation partition wall 200 and then moves to the condenser 400 of the condenser receiving area 150. Includes an outside air inflow area (140),
Outside air flowing into the first area 110 through the outside air inflow damper 112 is discharged indoors without passing through the evaporator 300;
The bet that flows into the second area 160 through the bet inflow damper 162 is discharged outdoors without passing through the condenser 400;
Integrated air conditioner with ventilation function.
According to paragraph 1,
Outside air flowing in through the outside air inlet damper 112 is supplied indoors, and outside air flowing in through the outside air inlet 141 is discharged outdoors;
The air inflow area 130 and the outside air inflow area 140 are disposed between the evaporator receiving area 120 and the condenser receiving area 150;
The internal air inlet 131 and the external air inlet 141 are arranged at the same height at the front and rear, respectively, around the separation partition 200;
Integrated air conditioner with ventilation function.
delete According to paragraph 1,
Entrances for internal and external air are arranged on the indoor side (100a) and the outdoor side (100b) of the main housing 100,
In each of the indoor side (100a) and the outdoor side (100b), the number of inlets for air flowing into the main housing 100 is greater than the number of outlets for air discharged from the main housing 100.
Integrated air conditioner with ventilation function.
According to paragraph 1,
When the air conditioner is operated in summer mode in which the outdoor air inflow damper 112 and the indoor air inflow damper 162 are closed;
The bet flows into the bet inlet area 130 through the bet inlet 131 by the suction force of the first discharge fan 500, then passes through the evaporator 300, through the first area 110, and then through the indoor discharge port 111 . It is discharged into the room through;
Outdoor air flows into the outdoor air inlet area 140 through the outdoor air inlet 141 by the suction force of the second discharge fan 600, then passes through the condenser 400 and the second area 160 to the outdoor outlet 161. discharged to the outdoors through;
Integrated air conditioner with ventilation function.
According to paragraph 1,
When the air conditioner is operated in winter mode in which the outside air inflow damper 112 and the inside air inflow damper 162 are opened;
Due to the intake force of the first discharge fan 500, outside air flows into the first area 110 through the outside air inflow damper 112 and is discharged into the room without passing through the evaporator 300, and the amount of outside air is the first area 110. The amount of bet flows into the bet inlet area 130 through the bet inlet 131 due to the suction force of the discharge fan 500 and passes through the evaporator 300;
Due to the suction power of the second discharge fan 600, indoor air flows into the second area 160 through the air inflow damper 162 and is discharged outdoors through the outdoor discharge port 161 without passing through the condenser 400. However, the amount of air is greater than the amount of outdoor air flowing into the outdoor air inlet area 140 through the outdoor air inlet 141 due to the suction force of the second discharge fan 600 and passing through the condenser 400;
Integrated air conditioner with ventilation function.
According to clause 6,
The amount of outside air flowing in through the outside air inflow damper 112 is greater than the amount of inside air flowing in through the outside air inlet 131;
The amount of inside air flowing in through the outside air inlet damper 162 is greater than the amount of outside air flowing in through the outside air inlet 141;
The paths of the outside air flowing in through the outside air inflow damper 112 and the inside air flowing in through the inside air inflow damper 162 are formed in parallel but opposite directions;
Integrated air conditioner with ventilation function.