KR20090048246A - Ceiling embedded-type air conditioner and energy saving type air conditioning system - Google Patents

Abstract

The ceiling type air conditioner has an air conditioner main body having an exhaust passage, which is a passage for exhausting indoor air to the outside, and an air supply passage, which is a passage for supplying outdoor air to the interior, and at least a part of the indoor air selectively operated and sucked into the exhaust passage. It is provided with a circulation unit for guiding the air supply passage. The ceiling type air conditioner has an advantage of being easy to install and high in energy efficiency while efficiently performing ventilation and air cooling.

Description

Ceiling type air conditioner and energy saving air conditioning system {CEILING EMBEDDED-TYPE AIR CONDITIONER AND ENERGY SAVING TYPE AIR CONDITIONING SYSTEM}

The present invention relates to a ceiling type air conditioner and an energy saving air conditioning system, and more particularly, a ceiling type air conditioner and an energy saving type air conditioner which are simple to install and have high energy efficiency while being able to efficiently perform ventilation and air cooling. It is about the system.

In general, air conditioners are classified into an integrated type and a separate type. Integral type refers to a form in which an evaporator, a condenser, a compressor, etc. are provided in one housing, and a detachable type means that the evaporator is provided in an indoor unit and the condenser and a compressor are provided in an outdoor unit. Say the form. In addition, the separate type air conditioner can be classified into a stand type in which the indoor unit is installed on the floor of the room, a wall type in which the indoor unit is installed on the indoor wall, and a ceiling type in which the indoor unit is embedded in the ceiling. Can be.

On the other hand, when simply circulating only the indoor air repeatedly, there is a problem that the indoor air pollution degree is increased and the comfort of the room may be lowered. Recently, in order to solve such a problem, a ceiling type air conditioner which sucks external air into the indoor unit main body, cools or heats it together with the indoor air, and discharges it to the interior is disclosed.

However, the conventional ceiling-type air conditioner as described above has a problem that it is difficult to introduce the elastic outdoor air according to the indoor environment. That is, in the conventional case, since it is not provided with a control means for adjusting the amount of circulation of indoor air, there is a problem that it is difficult to control the air volume of the indoor air discharged or the outdoor air introduced according to the indoor environment. Accordingly, when outdoor air is supplied more than necessary, additional energy consumption may occur because additional air conditioning is required for additional air conditioning. In addition, when the outdoor air is not supplied as necessary, the ventilation is not sufficiently made, the indoor comfort may be reduced.

In addition, the conventional ceiling-type air conditioner has a problem that the energy consumption can be increased because the indoor heat exchanger must be operated for indoor cooling even when the outdoor temperature such as winter is lower than the indoor.

In addition, even if it is possible to cool the outside air there is a problem that can not quickly supply the required outdoor air to the room.

Therefore, the present invention has been made in order to solve the above problems, one problem of the present invention is a ceiling type air conditioner and energy-saving air conditioning system that can efficiently supply the outdoor air required for ventilation and air cooling indoors To provide.

In addition, another object of the present invention is to provide a ceiling-type air conditioner and energy-saving air conditioning system that can be installed, the installation area is small, and the energy can be reduced by realizing air conditioning, ventilation and air cooling in one body will be.

According to a preferred embodiment of the present invention for achieving the above object of the present invention, the ceiling type air conditioner includes an exhaust passage which is a passage for exhausting indoor air to the outside and an air supply passage which is a passage for supplying outdoor air to the interior. An air conditioner body and a circulator that selectively operates to guide at least a portion of the indoor air sucked into the exhaust passage to the supply passage.

The air conditioner main body includes a blower for sucking outdoor air and discharging it to the inside, or a blower for sucking and discharging indoor air to the outside, and an indoor heat exchanger for cooling or heating the sucked outdoor air or sucked indoor air. In addition, a closed loop for cold or hot water circulation may be formed, and an indoor heat exchanger and an outdoor heat exchanger may be provided along the closed loop.

The air conditioner main body includes an exhaust passage and an air supply passage. At one end of the exhaust passage, an exhaust passage for inlet is formed, and an exhaust passage communicating with the outside is formed at the other end of the exhaust passage. In addition, one end of the air supply passage is formed with an inlet for the air supply passage communicating with the outside, the other end of the air supply passage is formed with an air supply passage outlet for communicating with the interior. Through the above structure, the indoor air can be exhausted to the outside along the exhaust passage, and the outdoor air can be supplied to the interior along the air supply passage.

On the other hand, the ceiling-type air conditioner according to the present invention includes a circulation portion, it is possible to circulate a predetermined amount of indoor air sucked from the room back to the room. That is, the circulation unit is installed in communication with the exhaust passage and the air supply passage, and by adjusting the flow resistance, it is possible to adjust the air volume of the indoor air guided to the air supply passage. The circulation part includes a mixing damper that can be opened and closed, and the mixing damper is provided to be openable and openable on a boundary wall separating the exhaust passage and the air supply passage. This circulation can be selectively operated depending on the need to circulate the sucked indoor air. That is, when the circulation of the indoor air is unnecessary, it is possible to maintain a non-operating state (that is, a closed state).

The operation state of the ceiling type air conditioner according to the present invention will be described below. In the case of general cooling and heating operation, for example, in the summer cooling operation, the mixing damper may be opened to a certain degree in order to simultaneously perform cooling and ventilation. The degree of opening of the mixing damper may be determined according to the degree of contamination of the indoor air. In other words, when a large amount of indoor air is required to increase the pollution of indoor air, by reducing the opening degree of the mixing damper, most of the indoor air sucked into the exhaust passage may be discharged to the outside.

Some of the indoor air sucked into the exhaust passage is supplied back to the room through the circulation portion, and the rest is discharged to the outside through the exhaust passage discharge port, and the outdoor air as much as the discharged air volume is sucked into the air supply passage and supplied to the room again. . Therefore, if the amount of circulation of the indoor air through the circulation unit is reduced, the amount of supply of outdoor air is increased, thereby reducing the pollution of the indoor air.

On the contrary, when the degree of pollution of indoor air is low and the supply of outdoor air is unnecessary, the inflow of outdoor air can be reduced by completely opening the circulation unit. Accordingly, the majority of the indoor air sucked into the exhaust passage can be supplied to the room again, and in the case of general cooling operation in summer, the majority of the air that is air-conditioned through the indoor heat exchanger may be relatively low temperature indoor air. As a result, there is little need to cool the outdoor air having a relatively high temperature, thereby reducing energy consumption due to outdoor air cooling.

In addition, the ceiling type air conditioner according to the present invention is economical and efficient outside air cooling through the circulation. In the case of the middle stage where the outdoor temperature is low and the indoor temperature is high, or in a machine room that requires cooling even in winter due to the high internal heat load, the indoor heat exchanger is supplied by supplying relatively cool outdoor air to the indoors without operating the indoor heat exchanger. Energy consumption can be reduced. The mixing damper can be closed for this purpose. Accordingly, most of the sucked indoor air can be discharged to the outside, and the sucked outdoor air can be directly supplied to the room. As a result, the indoor air can be cooled by using the low temperature of the outdoor air without the operation of the indoor heat exchanger.

In addition, according to another preferred embodiment of the present invention, the energy-saving air conditioning system includes a ceiling air conditioner, a heat medium providing unit connected to the ceiling air conditioner, a first exhaust gas communicating with an exhaust passage, and having a diffuser installed at an end thereof. And a second duct portion communicating with the duct portion and the air supply passage and having a diffuser installed at an end thereof. At this time, the heat medium providing unit may be an absorption type cold and hot water group.

Ceiling type air conditioner according to the present invention can effectively control the amount of outdoor air introduced by adjusting the opening and closing degree of the mixing damper according to the difference between the indoor and outdoor environment, thereby increasing the ventilation and air cooling efficiency.

In addition, the ceiling-type air conditioner according to the present invention has the effect that it is possible to provide an energy-saving air conditioner and air conditioning system can be cooled outside.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, in the present description, the same numbers refer to substantially the same elements, and may be described by quoting the contents described in other drawings under the above rules, and the contents repeated or deemed apparent to those skilled in the art may be omitted.

1 is a configuration diagram for explaining a general air conditioning operating state of the ceiling air conditioner according to an embodiment of the present invention, Figure 2 is an external air cooling operation state of the ceiling air conditioner according to an embodiment of the present invention It is a block diagram for explaining. 3 is a cross-sectional view for explaining a mixing damper constituting the present embodiment.

Ceiling type air conditioner 100 according to an embodiment of the present invention includes an air conditioner body 110 and the circulation unit 170.

The air conditioner main body 110 is provided with an exhaust passage E and an air supply passage S. An exhaust passage inlet 122 is formed at one end of the exhaust passage E, and an exhaust passage outlet 124 is formed at the other end of the exhaust passage E, which communicates with the outside. In addition, an air inlet 132 is formed at one end of the air supply passage S and communicates with the outside, and an air supply passage outlet 134 is formed at the other end of the air supply passage S. Through the above structure, the indoor air can be exhausted to the outside along the exhaust passage (E), and the outdoor air can be supplied to the interior along the air supply passage (S).

In the present embodiment, the air supply passage S and the exhaust passage E may be defined by the boundary wall 190 in the air conditioner main body 110. That is, by the boundary wall 190 partitions the space, a flow path through which the indoor air and the outdoor air can flow independently of each other may be defined. Accordingly, the indoor air and the outdoor air can be moved along each flow path by the blower. However, in another embodiment of the present invention, the air supply passage and the exhaust passage may be defined using separate ducts or oil pipes.

At this time, an exhaust blower 126 for sucking and discharging the indoor air to the outside may be provided at the side of the exhaust passage inlet 122 on the exhaust passage (E). In addition, an air supply blower 136 for sucking and supplying outdoor air to the room may be provided at the air supply passage outlet 134 on the air supply passage S. As described above, in the present embodiment, only the two blowers provided in the air conditioner main body can discharge indoor air and introduce outdoor air. That is, it is not necessary to further provide a separate blower for introducing the outside air. Accordingly, the structure of the air conditioner can be simplified more, and the driving power used in the blower can be reduced. However, in some cases, an additional blower may be provided at the air inlet 132 on the air supply passage S to increase the supply of outdoor air.

On the other hand, the air supply passage (S) may be provided with an indoor heat exchanger (140). The indoor heat exchanger 140 serves to cool or heat outdoor air sucked into the air supply passage S, indoor air guided into the air supply passage S through the circulation unit 170, or mixed air thereof. . The air conditioned through the indoor heat exchanger 140 is supplied to the room through the air supply passage outlet 134 and used to cool or heat the room. In addition, the front surface of the indoor heat exchanger 140 may be provided with a filter 142, the filter 142 serves to remove foreign matters in the air.

The circulation unit 170 selectively operates to guide at least a portion of the indoor air sucked into the exhaust passage E to the air supply passage S. That is, the circulation unit 170 is installed in communication with the exhaust flow path (E) and the air supply flow path (S), it is possible to adjust the air volume of the indoor air guided to the air supply flow path (S) by adjusting the flow path resistance. A circulation passage C may be provided to connect the exhaust passage E and the air supply passage S through the circulation unit 170. The circulation unit 170 includes a mixing damper 172 that can be opened and closed, and the mixing damper 172 is installed to be opened and closed on a boundary wall 190 that separates the exhaust passage E and the air supply passage S.

Referring to FIG. 3, the air flow rate adjusting method by the mixing damper 172 will be described in detail. A handle 173 for rotating the braids 178 and 179 is provided in the mixing damper 172 so as to be rotatable. The handle 173 may be manually operated or automatically operated by a motor. Here, when the handle 173 is rotated in the clockwise direction, the first braid 178 can be rotated in the clockwise direction by the interaction of the respective links 174 and 175, and the second braid 179 can be rotated in the respective links 174. , 176, 177 can be rotated counterclockwise. Accordingly, the flow path in the mixing damper 172 may be closed. As a result, the amount of air that can pass through the mixing damper 172 can be adjusted according to the rotation operation of the handle 173.

1 and 2, the operation state of the ceiling type air conditioner according to the present embodiment will be described in detail as follows.

In the case of a general air conditioning operation, as shown in FIG. 1, the mixing damper 172 is opened to a predetermined degree. In this case, the general air-conditioning operation is performed when the outdoor environment satisfies a predetermined condition (for example, when the outdoor temperature is higher than the room temperature, such as in summer), and then cools the room with the air conditioned by the indoor heat exchanger 140. (Or heating).

In the case of cooling (or heating) the room using only the air air-conditioned by the indoor heat exchanger 140, the degree of pollution of the indoor air may be increased, thereby reducing room comfort. In order to prevent this, it is necessary to supply a predetermined amount of outdoor air to the room, and in order to perform such a function, the ceiling type air conditioner 100 according to the present embodiment includes a mixing damper 172.

That is, some of the indoor air sucked into the exhaust passage (E) is supplied back to the room through the mixing damper 172, the rest is discharged to the outside through the exhaust passage outlet 124, the outdoor as much as the amount of air discharged Air is sucked into the air supply passage (S) and supplied to the room again. For example, assuming that the air flow rate of the indoor air sucked into the inlet 122 of the exhaust passage is 100, if the air flow rate of the indoor air passing through the mixing damper 172 is 70, the air flow rate of the indoor air discharged to the outside is 30. In this case, the air volume of the outdoor air sucked may be 30.

As a result, by adjusting the opening and closing degree of the mixing damper 172, it is possible to adjust the circulation amount of the indoor air. Accordingly, if the amount of circulation of indoor air is reduced by reducing the opening degree of the mixing damper 172, the amount of supply of outdoor air is increased, thereby reducing the pollution of indoor air. For reference, the pollution level of indoor air may be determined according to the carbon dioxide (CO2) content of the indoor air. The air conditioner according to the present embodiment may further include a sensor for detecting the amount of carbon dioxide in the indoor air, thereby automatically adjusting the opening and closing degree of the mixing damper 172 according to the measured amount of carbon dioxide. Here, the introduction of outdoor air also helps to maintain the indoor humidity properly.

As described above, the mixing damper 172 may determine the amount of indoor air discharged and the amount of outdoor air introduced by adjusting the circulation of indoor air. Accordingly, the mixing damper 172 can adjust the comfort of the room. That is, the mixing damper 172 may adjust the air volume of the outdoor air supplied to the room by adjusting the opening amount of the mixing damper 172 according to the indoor environment. In this case, the air volume of the outdoor air introduced may be adjusted to about 0 to 100% of the air volume of the indoor air sucked into the inlet 122 by the exhaust passage. Therefore, the air conditioner according to the present embodiment has an advantage in that outdoor air of an appropriate amount of air can be introduced according to an indoor environment.

Referring to Figure 2, it will be described the operating state according to the outside air cooling of the ceiling-type air conditioner according to this embodiment.

In the case of the intermediate stage where the outdoor temperature is low and the indoor temperature is high, or in a machine room that requires cooling even in winter due to the large internal heat load, energy saving can be achieved through air cooling. That is, by supplying the outdoor air of a relatively low temperature directly into the room, it is possible to cool the room without the need to operate the indoor heat exchanger (140). Accordingly, energy consumption due to the operation of the indoor heat exchanger 140 may be reduced.

Ceiling type air conditioner 100 according to the present embodiment is economical and efficient outside air cooling through the mixing damper 172. That is, when the outdoor environment satisfies a predetermined condition, for example, when the outdoor temperature is lower than the room temperature (or the indoor set temperature set by the user), or when the temperature and humidity of the outdoor environment satisfy a certain condition, etc. The mixing damper 172 may be closed for cooling. Accordingly, indoor air having a relatively high temperature may be discharged to the outside without being introduced into the room, and outdoor air having a relatively low temperature may be supplied to the room. As a result, indoor cooling is possible only with cold outdoor air without the operation of the indoor heat exchanger 140.

In order to automatically implement the operating state as described above, a temperature sensor may be provided at the air supply inlet 132 and the exhaust channel inlet 122. The controller may adjust the opening amount of the mixing damper 172 by determining a temperature difference between the indoor and the outdoor according to the value measured by the temperature sensor. When the temperature difference between the outdoor air and the indoor air is large, the opening amount of the mixing damper 172 can be reduced to increase the inflow of outdoor air, thereby easily cooling the room to the set temperature by the user without operating the indoor heat exchanger. You can. In addition, the opening amount of the mixing damper 172 may be adjusted according to a predetermined operating condition. The criterion for adjusting the opening amount of the mixing damper 172 is not limited to a temperature condition, and in some cases, a humidity condition and the like may also be considered.

The operating state as described above may be implemented not only in the case of cooling the outside air but also in the case where a large amount of outdoor air needs to be introduced. That is, when a large amount of fresh outside air is required for indoor pollution, the mixing damper 172 is closed as described above, thereby rapidly supplying a large amount of outdoor air to the room.

4 is a configuration diagram illustrating an energy saving air conditioning system according to another embodiment of the present invention.

As shown in FIG. 4, the energy saving air conditioning system 200 according to the present embodiment includes a ceiling type air conditioner 100, a heating medium providing unit 210, a first duct unit 220, and a second duct unit. 230.

Here, the ceiling type air conditioner may be the above-described ceiling type air conditioner. Energy-saving air conditioning system 200 according to the present embodiment is provided with the air conditioner, not only can efficiently and economically perform cooling and ventilation, but also has the advantage of small installation area and simple installation.

The heat medium providing unit 210 is connected to the indoor heat exchanger 140 of the ceiling type air conditioner 100, and generates a low temperature or high temperature refrigerant for circulation of a cooling or heating cycle. Serve on. To this end, the heat medium providing unit 210 may be an absorption cold / hot water group.

Absorption chiller is an evaporator for producing low temperature cold water using evaporation of refrigerant, an absorber for absorbing refrigerant vapor generated from evaporator using absorbent, a regenerator and regenerator for regenerating rare solution into agricultural liquid and generating high temperature refrigerant vapor. It may be configured as a condenser for condensing the generated refrigerant vapor into the cooling water. Through such a configuration, the absorption type cold and hot water heater enables cooling and heating using the liquid solubility of the refrigerant gas varies depending on temperature, pressure, and the like. The air conditioning system according to the present embodiment may use an integrated absorption cold / hot water heater in which a cooling tower is integrated among such absorption cold / hot water heaters. In the case of using the integrated absorption cold / hot water machine, not only the machine room for installing the cold / hot water machine or the freezer but also the installation area for installing the air conditioning system can be greatly reduced, and the installation becomes simple.

The first duct unit 220 communicates with the exhaust passage E provided in the ceiling type air conditioner 100, and a diffuser 222 is installed at an end thereof. This allows the indoor air to be discharged to the outside. In addition, the second duct unit 230 communicates with the air supply passage S provided in the ceiling type air conditioner 100, and the diffuser 232 is installed at an end thereof. This allows the outdoor air to be supplied indoors.

As described above, the energy-saving air conditioning system 200 according to the present embodiment has a small installation area and a simple installation, and can effectively perform ventilation and air cooling to reduce energy consumption used in the air conditioning system. There is.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can. Therefore, the spirit of the present invention should be grasped only by the claims described below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

1 is a configuration diagram for explaining a general cooling and heating operation state of the ceiling-type air conditioner according to an embodiment of the present invention.

2 is a configuration diagram illustrating an external air cooling operation state of a ceiling type air conditioner according to an exemplary embodiment of the present invention.

3 is a cross-sectional view for explaining a mixing damper constituting the present embodiment.

4 is a configuration diagram illustrating an energy saving air conditioning system according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: ceiling type air conditioner 110: air conditioner main body

140: indoor heat exchanger 170: circulation

Claims (14)

In the ceiling type air conditioner embedded in the ceiling, An air conditioner body having an exhaust passage that is a passage for exhausting indoor air to the outside and an air supply passage that is a passage for supplying outdoor air to the interior; And A circulation unit selectively operating to guide at least a portion of the indoor air sucked into the exhaust passage to the air supply passage; Ceiling air conditioner having a. The method of claim 1, The circulation unit includes a mixing damper that can be opened and closed, and the air volume of the indoor air guided to the air supply passage is adjusted according to the degree of opening and closing of the mixing damper. The method of claim 2, Ceiling type air conditioner, characterized in that further comprising a control unit for adjusting the opening and closing degree of the mixing damper. The method of claim 3, The control unit closes the mixing damper if the outdoor environment satisfies a predetermined condition, characterized in that the ceiling air conditioner. The method of claim 4, wherein The predetermined condition is a temperature condition, and if the temperature of the outdoor environment is less than or equal to a predetermined temperature, the controller closes the mixing damper. The method of claim 4, wherein Ceiling air conditioner, characterized in that the temperature sensor for measuring the temperature of the outdoor air is provided at one end of the air supply passage in which the outdoor air flows. The method of claim 1, A ceiling blower further installed on the exhaust flow path and sucking the indoor air and discharging the indoor air to the outside; and an air blower installed on the air supply flow path and sucking the outdoor air and discharging the outdoor air to the interior. Mold air conditioner. The method of claim 1, Ceiling air conditioner further comprises an indoor air exchanger for cooling or heating the outdoor air introduced into the air supply passage, the indoor air guided through the circulation or a mixture thereof. An air conditioner main body including an exhaust passage, which is a passage for exhausting indoor air to the outside, and an air passage, which is a passage for supplying outdoor air, and at least a portion of the indoor air selectively actuated and sucked into the exhaust passage; Ceiling type air conditioner having a circulation portion to guide to; Heat medium providing unit connected to the ceiling air conditioner; A first duct unit communicating with the exhaust passage and having a diffuser installed at an end thereof; And A second duct unit communicating with the air supply passage and having a diffuser installed at an end thereof; Energy-saving air conditioning system comprising a. The method of claim 9, The heat medium providing unit is an energy-saving air conditioning system, characterized in that the absorption cold and hot water. The method of claim 9, The circulation unit includes a mixing damper that can be opened and closed, the energy saving air conditioning system characterized in that the air volume of the indoor air guided to the air supply passage is adjusted according to the opening and closing degree of the mixing damper. The method of claim 11, Energy-saving air conditioning system further comprises a control unit for adjusting the opening and closing degree of the mixing damper. The method of claim 12, And the control unit closes the mixing damper when the outdoor environment satisfies a predetermined condition. The method of claim 13, The predetermined condition is a temperature condition, and when the temperature of the outdoor environment is less than or equal to a predetermined temperature, the controller closes the mixing damper.

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